Much of this seems to be outdated.
example64$(EXE) minigzip64$(EXE) \
infcover \
libz.* foo.gz so_locations \
- _match.s maketree contrib/infback9/*.o
+ _match.s maketree
rm -rf objs
rm -f *.gcda *.gcno *.gcov
- rm -f contrib/infback9/*.gcda contrib/infback9/*.gcno contrib/infback9/*.gcov
maintainer-clean: distclean
distclean: clean zconf zconf.h.cmakein docs
+++ /dev/null
-All files under this contrib directory are UNSUPPORTED. There were
-provided by users of zlib and were not tested by the authors of zlib.
-Use at your own risk. Please contact the authors of the contributions
-for help about these, not the zlib authors. Thanks.
-
-
-ada/ by Dmitriy Anisimkov <anisimkov@yahoo.com>
- Support for Ada
- See http://zlib-ada.sourceforge.net/
-
-amd64/ by Mikhail Teterin <mi@ALDAN.algebra.com>
- asm code for AMD64
- See patch at http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/96393
-
-asm686/ by Brian Raiter <breadbox@muppetlabs.com>
- asm code for Pentium and PPro/PII, using the AT&T (GNU as) syntax
- See http://www.muppetlabs.com/~breadbox/software/assembly.html
-
-blast/ by Mark Adler <madler@alumni.caltech.edu>
- Decompressor for output of PKWare Data Compression Library (DCL)
-
-delphi/ by Cosmin Truta <cosmint@cs.ubbcluj.ro>
- Support for Delphi and C++ Builder
-
-dotzlib/ by Henrik Ravn <henrik@ravn.com>
- Support for Microsoft .Net and Visual C++ .Net
-
-gcc_gvmat64/by Gilles Vollant <info@winimage.com>
- GCC Version of x86 64-bit (AMD64 and Intel EM64t) code for x64
- assembler to replace longest_match() and inflate_fast()
-
-infback9/ by Mark Adler <madler@alumni.caltech.edu>
- Unsupported diffs to infback to decode the deflate64 format
-
-inflate86/ by Chris Anderson <christop@charm.net>
- Tuned x86 gcc asm code to replace inflate_fast()
-
-iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
- A C++ I/O streams interface to the zlib gz* functions
-
-iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
- Another C++ I/O streams interface
-
-iostream3/ by Ludwig Schwardt <schwardt@sun.ac.za>
- and Kevin Ruland <kevin@rodin.wustl.edu>
- Yet another C++ I/O streams interface
-
-masmx64/ by Gilles Vollant <info@winimage.com>
- x86 64-bit (AMD64 and Intel EM64t) code for x64 assembler to
- replace longest_match() and inflate_fast(), also masm x86
- 64-bits translation of Chris Anderson inflate_fast()
-
-masmx86/ by Gilles Vollant <info@winimage.com>
- x86 asm code to replace longest_match() and inflate_fast(),
- for Visual C++ and MASM (32 bits).
- Based on Brian Raiter (asm686) and Chris Anderson (inflate86)
-
-minizip/ by Gilles Vollant <info@winimage.com>
- Mini zip and unzip based on zlib
- Includes Zip64 support by Mathias Svensson <mathias@result42.com>
- See http://www.winimage.com/zLibDll/unzip.html
-
-pascal/ by Bob Dellaca <bobdl@xtra.co.nz> et al.
- Support for Pascal
-
-puff/ by Mark Adler <madler@alumni.caltech.edu>
- Small, low memory usage inflate. Also serves to provide an
- unambiguous description of the deflate format.
-
-testzlib/ by Gilles Vollant <info@winimage.com>
- Example of the use of zlib
-
-untgz/ by Pedro A. Aranda Gutierrez <paag@tid.es>
- A very simple tar.gz file extractor using zlib
-
-vstudio/ by Gilles Vollant <info@winimage.com>
- Building a minizip-enhanced zlib with Microsoft Visual Studio
- Includes vc11 from kreuzerkrieg and vc12 from davispuh
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2004 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
---
--- $Id: buffer_demo.adb,v 1.3 2004/09/06 06:55:35 vagul Exp $
-
--- This demo program provided by Dr Steve Sangwine <sjs@essex.ac.uk>
---
--- Demonstration of a problem with Zlib-Ada (already fixed) when a buffer
--- of exactly the correct size is used for decompressed data, and the last
--- few bytes passed in to Zlib are checksum bytes.
-
--- This program compresses a string of text, and then decompresses the
--- compressed text into a buffer of the same size as the original text.
-
-with Ada.Streams; use Ada.Streams;
-with Ada.Text_IO;
-
-with ZLib; use ZLib;
-
-procedure Buffer_Demo is
- EOL : Character renames ASCII.LF;
- Text : constant String
- := "Four score and seven years ago our fathers brought forth," & EOL &
- "upon this continent, a new nation, conceived in liberty," & EOL &
- "and dedicated to the proposition that `all men are created equal'.";
-
- Source : Stream_Element_Array (1 .. Text'Length);
- for Source'Address use Text'Address;
-
-begin
- Ada.Text_IO.Put (Text);
- Ada.Text_IO.New_Line;
- Ada.Text_IO.Put_Line
- ("Uncompressed size : " & Positive'Image (Text'Length) & " bytes");
-
- declare
- Compressed_Data : Stream_Element_Array (1 .. Text'Length);
- L : Stream_Element_Offset;
- begin
- Compress : declare
- Compressor : Filter_Type;
- I : Stream_Element_Offset;
- begin
- Deflate_Init (Compressor);
-
- -- Compress the whole of T at once.
-
- Translate (Compressor, Source, I, Compressed_Data, L, Finish);
- pragma Assert (I = Source'Last);
-
- Close (Compressor);
-
- Ada.Text_IO.Put_Line
- ("Compressed size : "
- & Stream_Element_Offset'Image (L) & " bytes");
- end Compress;
-
- -- Now we decompress the data, passing short blocks of data to Zlib
- -- (because this demonstrates the problem - the last block passed will
- -- contain checksum information and there will be no output, only a
- -- check inside Zlib that the checksum is correct).
-
- Decompress : declare
- Decompressor : Filter_Type;
-
- Uncompressed_Data : Stream_Element_Array (1 .. Text'Length);
-
- Block_Size : constant := 4;
- -- This makes sure that the last block contains
- -- only Adler checksum data.
-
- P : Stream_Element_Offset := Compressed_Data'First - 1;
- O : Stream_Element_Offset;
- begin
- Inflate_Init (Decompressor);
-
- loop
- Translate
- (Decompressor,
- Compressed_Data
- (P + 1 .. Stream_Element_Offset'Min (P + Block_Size, L)),
- P,
- Uncompressed_Data
- (Total_Out (Decompressor) + 1 .. Uncompressed_Data'Last),
- O,
- No_Flush);
-
- Ada.Text_IO.Put_Line
- ("Total in : " & Count'Image (Total_In (Decompressor)) &
- ", out : " & Count'Image (Total_Out (Decompressor)));
-
- exit when P = L;
- end loop;
-
- Ada.Text_IO.New_Line;
- Ada.Text_IO.Put_Line
- ("Decompressed text matches original text : "
- & Boolean'Image (Uncompressed_Data = Source));
- end Decompress;
- end;
-end Buffer_Demo;
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2003 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
--- Continuous test for ZLib multithreading. If the test would fail
--- we should provide thread safe allocation routines for the Z_Stream.
---
--- $Id: mtest.adb,v 1.4 2004/07/23 07:49:54 vagul Exp $
-
-with ZLib;
-with Ada.Streams;
-with Ada.Numerics.Discrete_Random;
-with Ada.Text_IO;
-with Ada.Exceptions;
-with Ada.Task_Identification;
-
-procedure MTest is
- use Ada.Streams;
- use ZLib;
-
- Stop : Boolean := False;
-
- pragma Atomic (Stop);
-
- subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#;
-
- package Random_Elements is
- new Ada.Numerics.Discrete_Random (Visible_Symbols);
-
- task type Test_Task;
-
- task body Test_Task is
- Buffer : Stream_Element_Array (1 .. 100_000);
- Gen : Random_Elements.Generator;
-
- Buffer_First : Stream_Element_Offset;
- Compare_First : Stream_Element_Offset;
-
- Deflate : Filter_Type;
- Inflate : Filter_Type;
-
- procedure Further (Item : in Stream_Element_Array);
-
- procedure Read_Buffer
- (Item : out Ada.Streams.Stream_Element_Array;
- Last : out Ada.Streams.Stream_Element_Offset);
-
- -------------
- -- Further --
- -------------
-
- procedure Further (Item : in Stream_Element_Array) is
-
- procedure Compare (Item : in Stream_Element_Array);
-
- -------------
- -- Compare --
- -------------
-
- procedure Compare (Item : in Stream_Element_Array) is
- Next_First : Stream_Element_Offset := Compare_First + Item'Length;
- begin
- if Buffer (Compare_First .. Next_First - 1) /= Item then
- raise Program_Error;
- end if;
-
- Compare_First := Next_First;
- end Compare;
-
- procedure Compare_Write is new ZLib.Write (Write => Compare);
- begin
- Compare_Write (Inflate, Item, No_Flush);
- end Further;
-
- -----------------
- -- Read_Buffer --
- -----------------
-
- procedure Read_Buffer
- (Item : out Ada.Streams.Stream_Element_Array;
- Last : out Ada.Streams.Stream_Element_Offset)
- is
- Buff_Diff : Stream_Element_Offset := Buffer'Last - Buffer_First;
- Next_First : Stream_Element_Offset;
- begin
- if Item'Length <= Buff_Diff then
- Last := Item'Last;
-
- Next_First := Buffer_First + Item'Length;
-
- Item := Buffer (Buffer_First .. Next_First - 1);
-
- Buffer_First := Next_First;
- else
- Last := Item'First + Buff_Diff;
- Item (Item'First .. Last) := Buffer (Buffer_First .. Buffer'Last);
- Buffer_First := Buffer'Last + 1;
- end if;
- end Read_Buffer;
-
- procedure Translate is new Generic_Translate
- (Data_In => Read_Buffer,
- Data_Out => Further);
-
- begin
- Random_Elements.Reset (Gen);
-
- Buffer := (others => 20);
-
- Main : loop
- for J in Buffer'Range loop
- Buffer (J) := Random_Elements.Random (Gen);
-
- Deflate_Init (Deflate);
- Inflate_Init (Inflate);
-
- Buffer_First := Buffer'First;
- Compare_First := Buffer'First;
-
- Translate (Deflate);
-
- if Compare_First /= Buffer'Last + 1 then
- raise Program_Error;
- end if;
-
- Ada.Text_IO.Put_Line
- (Ada.Task_Identification.Image
- (Ada.Task_Identification.Current_Task)
- & Stream_Element_Offset'Image (J)
- & ZLib.Count'Image (Total_Out (Deflate)));
-
- Close (Deflate);
- Close (Inflate);
-
- exit Main when Stop;
- end loop;
- end loop Main;
- exception
- when E : others =>
- Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (E));
- Stop := True;
- end Test_Task;
-
- Test : array (1 .. 4) of Test_Task;
-
- pragma Unreferenced (Test);
-
- Dummy : Character;
-
-begin
- Ada.Text_IO.Get_Immediate (Dummy);
- Stop := True;
-end MTest;
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2003 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
-
--- $Id: read.adb,v 1.8 2004/05/31 10:53:40 vagul Exp $
-
--- Test/demo program for the generic read interface.
-
-with Ada.Numerics.Discrete_Random;
-with Ada.Streams;
-with Ada.Text_IO;
-
-with ZLib;
-
-procedure Read is
-
- use Ada.Streams;
-
- ------------------------------------
- -- Test configuration parameters --
- ------------------------------------
-
- File_Size : Stream_Element_Offset := 100_000;
-
- Continuous : constant Boolean := False;
- -- If this constant is True, the test would be repeated again and again,
- -- with increment File_Size for every iteration.
-
- Header : constant ZLib.Header_Type := ZLib.Default;
- -- Do not use Header other than Default in ZLib versions 1.1.4 and older.
-
- Init_Random : constant := 8;
- -- We are using the same random sequence, in case of we catch bug,
- -- so we would be able to reproduce it.
-
- -- End --
-
- Pack_Size : Stream_Element_Offset;
- Offset : Stream_Element_Offset;
-
- Filter : ZLib.Filter_Type;
-
- subtype Visible_Symbols
- is Stream_Element range 16#20# .. 16#7E#;
-
- package Random_Elements is new
- Ada.Numerics.Discrete_Random (Visible_Symbols);
-
- Gen : Random_Elements.Generator;
- Period : constant Stream_Element_Offset := 200;
- -- Period constant variable for random generator not to be very random.
- -- Bigger period, harder random.
-
- Read_Buffer : Stream_Element_Array (1 .. 2048);
- Read_First : Stream_Element_Offset;
- Read_Last : Stream_Element_Offset;
-
- procedure Reset;
-
- procedure Read
- (Item : out Stream_Element_Array;
- Last : out Stream_Element_Offset);
- -- this procedure is for generic instantiation of
- -- ZLib.Read
- -- reading data from the File_In.
-
- procedure Read is new ZLib.Read
- (Read,
- Read_Buffer,
- Rest_First => Read_First,
- Rest_Last => Read_Last);
-
- ----------
- -- Read --
- ----------
-
- procedure Read
- (Item : out Stream_Element_Array;
- Last : out Stream_Element_Offset) is
- begin
- Last := Stream_Element_Offset'Min
- (Item'Last,
- Item'First + File_Size - Offset);
-
- for J in Item'First .. Last loop
- if J < Item'First + Period then
- Item (J) := Random_Elements.Random (Gen);
- else
- Item (J) := Item (J - Period);
- end if;
-
- Offset := Offset + 1;
- end loop;
- end Read;
-
- -----------
- -- Reset --
- -----------
-
- procedure Reset is
- begin
- Random_Elements.Reset (Gen, Init_Random);
- Pack_Size := 0;
- Offset := 1;
- Read_First := Read_Buffer'Last + 1;
- Read_Last := Read_Buffer'Last;
- end Reset;
-
-begin
- Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version);
-
- loop
- for Level in ZLib.Compression_Level'Range loop
-
- Ada.Text_IO.Put ("Level ="
- & ZLib.Compression_Level'Image (Level));
-
- -- Deflate using generic instantiation.
-
- ZLib.Deflate_Init
- (Filter,
- Level,
- Header => Header);
-
- Reset;
-
- Ada.Text_IO.Put
- (Stream_Element_Offset'Image (File_Size) & " ->");
-
- loop
- declare
- Buffer : Stream_Element_Array (1 .. 1024);
- Last : Stream_Element_Offset;
- begin
- Read (Filter, Buffer, Last);
-
- Pack_Size := Pack_Size + Last - Buffer'First + 1;
-
- exit when Last < Buffer'Last;
- end;
- end loop;
-
- Ada.Text_IO.Put_Line (Stream_Element_Offset'Image (Pack_Size));
-
- ZLib.Close (Filter);
- end loop;
-
- exit when not Continuous;
-
- File_Size := File_Size + 1;
- end loop;
-end Read;
+++ /dev/null
- ZLib for Ada thick binding (ZLib.Ada)
- Release 1.3
-
-ZLib.Ada is a thick binding interface to the popular ZLib data
-compression library, available at http://www.gzip.org/zlib/.
-It provides Ada-style access to the ZLib C library.
-
-
- Here are the main changes since ZLib.Ada 1.2:
-
-- Attension: ZLib.Read generic routine have a initialization requirement
- for Read_Last parameter now. It is a bit incompartible with previous version,
- but extends functionality, we could use new parameters Allow_Read_Some and
- Flush now.
-
-- Added Is_Open routines to ZLib and ZLib.Streams packages.
-
-- Add pragma Assert to check Stream_Element is 8 bit.
-
-- Fix extraction to buffer with exact known decompressed size. Error reported by
- Steve Sangwine.
-
-- Fix definition of ULong (changed to unsigned_long), fix regression on 64 bits
- computers. Patch provided by Pascal Obry.
-
-- Add Status_Error exception definition.
-
-- Add pragma Assertion that Ada.Streams.Stream_Element size is 8 bit.
-
-
- How to build ZLib.Ada under GNAT
-
-You should have the ZLib library already build on your computer, before
-building ZLib.Ada. Make the directory of ZLib.Ada sources current and
-issue the command:
-
- gnatmake test -largs -L<directory where libz.a is> -lz
-
-Or use the GNAT project file build for GNAT 3.15 or later:
-
- gnatmake -Pzlib.gpr -L<directory where libz.a is>
-
-
- How to build ZLib.Ada under Aonix ObjectAda for Win32 7.2.2
-
-1. Make a project with all *.ads and *.adb files from the distribution.
-2. Build the libz.a library from the ZLib C sources.
-3. Rename libz.a to z.lib.
-4. Add the library z.lib to the project.
-5. Add the libc.lib library from the ObjectAda distribution to the project.
-6. Build the executable using test.adb as a main procedure.
-
-
- How to use ZLib.Ada
-
-The source files test.adb and read.adb are small demo programs that show
-the main functionality of ZLib.Ada.
-
-The routines from the package specifications are commented.
-
-
-Homepage: http://zlib-ada.sourceforge.net/
-Author: Dmitriy Anisimkov <anisimkov@yahoo.com>
-
-Contributors: Pascal Obry <pascal@obry.org>, Steve Sangwine <sjs@essex.ac.uk>
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2003 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
-
--- $Id: test.adb,v 1.17 2003/08/12 12:13:30 vagul Exp $
-
--- The program has a few aims.
--- 1. Test ZLib.Ada95 thick binding functionality.
--- 2. Show the example of use main functionality of the ZLib.Ada95 binding.
--- 3. Build this program automatically compile all ZLib.Ada95 packages under
--- GNAT Ada95 compiler.
-
-with ZLib.Streams;
-with Ada.Streams.Stream_IO;
-with Ada.Numerics.Discrete_Random;
-
-with Ada.Text_IO;
-
-with Ada.Calendar;
-
-procedure Test is
-
- use Ada.Streams;
- use Stream_IO;
-
- ------------------------------------
- -- Test configuration parameters --
- ------------------------------------
-
- File_Size : Count := 100_000;
- Continuous : constant Boolean := False;
-
- Header : constant ZLib.Header_Type := ZLib.Default;
- -- ZLib.None;
- -- ZLib.Auto;
- -- ZLib.GZip;
- -- Do not use Header other then Default in ZLib versions 1.1.4
- -- and older.
-
- Strategy : constant ZLib.Strategy_Type := ZLib.Default_Strategy;
- Init_Random : constant := 10;
-
- -- End --
-
- In_File_Name : constant String := "testzlib.in";
- -- Name of the input file
-
- Z_File_Name : constant String := "testzlib.zlb";
- -- Name of the compressed file.
-
- Out_File_Name : constant String := "testzlib.out";
- -- Name of the decompressed file.
-
- File_In : File_Type;
- File_Out : File_Type;
- File_Back : File_Type;
- File_Z : ZLib.Streams.Stream_Type;
-
- Filter : ZLib.Filter_Type;
-
- Time_Stamp : Ada.Calendar.Time;
-
- procedure Generate_File;
- -- Generate file of spetsified size with some random data.
- -- The random data is repeatable, for the good compression.
-
- procedure Compare_Streams
- (Left, Right : in out Root_Stream_Type'Class);
- -- The procedure compearing data in 2 streams.
- -- It is for compare data before and after compression/decompression.
-
- procedure Compare_Files (Left, Right : String);
- -- Compare files. Based on the Compare_Streams.
-
- procedure Copy_Streams
- (Source, Target : in out Root_Stream_Type'Class;
- Buffer_Size : in Stream_Element_Offset := 1024);
- -- Copying data from one stream to another. It is for test stream
- -- interface of the library.
-
- procedure Data_In
- (Item : out Stream_Element_Array;
- Last : out Stream_Element_Offset);
- -- this procedure is for generic instantiation of
- -- ZLib.Generic_Translate.
- -- reading data from the File_In.
-
- procedure Data_Out (Item : in Stream_Element_Array);
- -- this procedure is for generic instantiation of
- -- ZLib.Generic_Translate.
- -- writing data to the File_Out.
-
- procedure Stamp;
- -- Store the timestamp to the local variable.
-
- procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count);
- -- Print the time statistic with the message.
-
- procedure Translate is new ZLib.Generic_Translate
- (Data_In => Data_In,
- Data_Out => Data_Out);
- -- This procedure is moving data from File_In to File_Out
- -- with compression or decompression, depend on initialization of
- -- Filter parameter.
-
- -------------------
- -- Compare_Files --
- -------------------
-
- procedure Compare_Files (Left, Right : String) is
- Left_File, Right_File : File_Type;
- begin
- Open (Left_File, In_File, Left);
- Open (Right_File, In_File, Right);
- Compare_Streams (Stream (Left_File).all, Stream (Right_File).all);
- Close (Left_File);
- Close (Right_File);
- end Compare_Files;
-
- ---------------------
- -- Compare_Streams --
- ---------------------
-
- procedure Compare_Streams
- (Left, Right : in out Ada.Streams.Root_Stream_Type'Class)
- is
- Left_Buffer, Right_Buffer : Stream_Element_Array (0 .. 16#FFF#);
- Left_Last, Right_Last : Stream_Element_Offset;
- begin
- loop
- Read (Left, Left_Buffer, Left_Last);
- Read (Right, Right_Buffer, Right_Last);
-
- if Left_Last /= Right_Last then
- Ada.Text_IO.Put_Line ("Compare error :"
- & Stream_Element_Offset'Image (Left_Last)
- & " /= "
- & Stream_Element_Offset'Image (Right_Last));
-
- raise Constraint_Error;
-
- elsif Left_Buffer (0 .. Left_Last)
- /= Right_Buffer (0 .. Right_Last)
- then
- Ada.Text_IO.Put_Line ("ERROR: IN and OUT files is not equal.");
- raise Constraint_Error;
-
- end if;
-
- exit when Left_Last < Left_Buffer'Last;
- end loop;
- end Compare_Streams;
-
- ------------------
- -- Copy_Streams --
- ------------------
-
- procedure Copy_Streams
- (Source, Target : in out Ada.Streams.Root_Stream_Type'Class;
- Buffer_Size : in Stream_Element_Offset := 1024)
- is
- Buffer : Stream_Element_Array (1 .. Buffer_Size);
- Last : Stream_Element_Offset;
- begin
- loop
- Read (Source, Buffer, Last);
- Write (Target, Buffer (1 .. Last));
-
- exit when Last < Buffer'Last;
- end loop;
- end Copy_Streams;
-
- -------------
- -- Data_In --
- -------------
-
- procedure Data_In
- (Item : out Stream_Element_Array;
- Last : out Stream_Element_Offset) is
- begin
- Read (File_In, Item, Last);
- end Data_In;
-
- --------------
- -- Data_Out --
- --------------
-
- procedure Data_Out (Item : in Stream_Element_Array) is
- begin
- Write (File_Out, Item);
- end Data_Out;
-
- -------------------
- -- Generate_File --
- -------------------
-
- procedure Generate_File is
- subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#;
-
- package Random_Elements is
- new Ada.Numerics.Discrete_Random (Visible_Symbols);
-
- Gen : Random_Elements.Generator;
- Buffer : Stream_Element_Array := (1 .. 77 => 16#20#) & 10;
-
- Buffer_Count : constant Count := File_Size / Buffer'Length;
- -- Number of same buffers in the packet.
-
- Density : constant Count := 30; -- from 0 to Buffer'Length - 2;
-
- procedure Fill_Buffer (J, D : in Count);
- -- Change the part of the buffer.
-
- -----------------
- -- Fill_Buffer --
- -----------------
-
- procedure Fill_Buffer (J, D : in Count) is
- begin
- for K in 0 .. D loop
- Buffer
- (Stream_Element_Offset ((J + K) mod (Buffer'Length - 1) + 1))
- := Random_Elements.Random (Gen);
-
- end loop;
- end Fill_Buffer;
-
- begin
- Random_Elements.Reset (Gen, Init_Random);
-
- Create (File_In, Out_File, In_File_Name);
-
- Fill_Buffer (1, Buffer'Length - 2);
-
- for J in 1 .. Buffer_Count loop
- Write (File_In, Buffer);
-
- Fill_Buffer (J, Density);
- end loop;
-
- -- fill remain size.
-
- Write
- (File_In,
- Buffer
- (1 .. Stream_Element_Offset
- (File_Size - Buffer'Length * Buffer_Count)));
-
- Flush (File_In);
- Close (File_In);
- end Generate_File;
-
- ---------------------
- -- Print_Statistic --
- ---------------------
-
- procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count) is
- use Ada.Calendar;
- use Ada.Text_IO;
-
- package Count_IO is new Integer_IO (ZLib.Count);
-
- Curr_Dur : Duration := Clock - Time_Stamp;
- begin
- Put (Msg);
-
- Set_Col (20);
- Ada.Text_IO.Put ("size =");
-
- Count_IO.Put
- (Data_Size,
- Width => Stream_IO.Count'Image (File_Size)'Length);
-
- Put_Line (" duration =" & Duration'Image (Curr_Dur));
- end Print_Statistic;
-
- -----------
- -- Stamp --
- -----------
-
- procedure Stamp is
- begin
- Time_Stamp := Ada.Calendar.Clock;
- end Stamp;
-
-begin
- Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version);
-
- loop
- Generate_File;
-
- for Level in ZLib.Compression_Level'Range loop
-
- Ada.Text_IO.Put_Line ("Level ="
- & ZLib.Compression_Level'Image (Level));
-
- -- Test generic interface.
- Open (File_In, In_File, In_File_Name);
- Create (File_Out, Out_File, Z_File_Name);
-
- Stamp;
-
- -- Deflate using generic instantiation.
-
- ZLib.Deflate_Init
- (Filter => Filter,
- Level => Level,
- Strategy => Strategy,
- Header => Header);
-
- Translate (Filter);
- Print_Statistic ("Generic compress", ZLib.Total_Out (Filter));
- ZLib.Close (Filter);
-
- Close (File_In);
- Close (File_Out);
-
- Open (File_In, In_File, Z_File_Name);
- Create (File_Out, Out_File, Out_File_Name);
-
- Stamp;
-
- -- Inflate using generic instantiation.
-
- ZLib.Inflate_Init (Filter, Header => Header);
-
- Translate (Filter);
- Print_Statistic ("Generic decompress", ZLib.Total_Out (Filter));
-
- ZLib.Close (Filter);
-
- Close (File_In);
- Close (File_Out);
-
- Compare_Files (In_File_Name, Out_File_Name);
-
- -- Test stream interface.
-
- -- Compress to the back stream.
-
- Open (File_In, In_File, In_File_Name);
- Create (File_Back, Out_File, Z_File_Name);
-
- Stamp;
-
- ZLib.Streams.Create
- (Stream => File_Z,
- Mode => ZLib.Streams.Out_Stream,
- Back => ZLib.Streams.Stream_Access
- (Stream (File_Back)),
- Back_Compressed => True,
- Level => Level,
- Strategy => Strategy,
- Header => Header);
-
- Copy_Streams
- (Source => Stream (File_In).all,
- Target => File_Z);
-
- -- Flushing internal buffers to the back stream.
-
- ZLib.Streams.Flush (File_Z, ZLib.Finish);
-
- Print_Statistic ("Write compress",
- ZLib.Streams.Write_Total_Out (File_Z));
-
- ZLib.Streams.Close (File_Z);
-
- Close (File_In);
- Close (File_Back);
-
- -- Compare reading from original file and from
- -- decompression stream.
-
- Open (File_In, In_File, In_File_Name);
- Open (File_Back, In_File, Z_File_Name);
-
- ZLib.Streams.Create
- (Stream => File_Z,
- Mode => ZLib.Streams.In_Stream,
- Back => ZLib.Streams.Stream_Access
- (Stream (File_Back)),
- Back_Compressed => True,
- Header => Header);
-
- Stamp;
- Compare_Streams (Stream (File_In).all, File_Z);
-
- Print_Statistic ("Read decompress",
- ZLib.Streams.Read_Total_Out (File_Z));
-
- ZLib.Streams.Close (File_Z);
- Close (File_In);
- Close (File_Back);
-
- -- Compress by reading from compression stream.
-
- Open (File_Back, In_File, In_File_Name);
- Create (File_Out, Out_File, Z_File_Name);
-
- ZLib.Streams.Create
- (Stream => File_Z,
- Mode => ZLib.Streams.In_Stream,
- Back => ZLib.Streams.Stream_Access
- (Stream (File_Back)),
- Back_Compressed => False,
- Level => Level,
- Strategy => Strategy,
- Header => Header);
-
- Stamp;
- Copy_Streams
- (Source => File_Z,
- Target => Stream (File_Out).all);
-
- Print_Statistic ("Read compress",
- ZLib.Streams.Read_Total_Out (File_Z));
-
- ZLib.Streams.Close (File_Z);
-
- Close (File_Out);
- Close (File_Back);
-
- -- Decompress to decompression stream.
-
- Open (File_In, In_File, Z_File_Name);
- Create (File_Back, Out_File, Out_File_Name);
-
- ZLib.Streams.Create
- (Stream => File_Z,
- Mode => ZLib.Streams.Out_Stream,
- Back => ZLib.Streams.Stream_Access
- (Stream (File_Back)),
- Back_Compressed => False,
- Header => Header);
-
- Stamp;
-
- Copy_Streams
- (Source => Stream (File_In).all,
- Target => File_Z);
-
- Print_Statistic ("Write decompress",
- ZLib.Streams.Write_Total_Out (File_Z));
-
- ZLib.Streams.Close (File_Z);
- Close (File_In);
- Close (File_Back);
-
- Compare_Files (In_File_Name, Out_File_Name);
- end loop;
-
- Ada.Text_IO.Put_Line (Count'Image (File_Size) & " Ok.");
-
- exit when not Continuous;
-
- File_Size := File_Size + 1;
- end loop;
-end Test;
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2003 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
-
--- $Id: zlib-streams.adb,v 1.10 2004/05/31 10:53:40 vagul Exp $
-
-with Ada.Unchecked_Deallocation;
-
-package body ZLib.Streams is
-
- -----------
- -- Close --
- -----------
-
- procedure Close (Stream : in out Stream_Type) is
- procedure Free is new Ada.Unchecked_Deallocation
- (Stream_Element_Array, Buffer_Access);
- begin
- if Stream.Mode = Out_Stream or Stream.Mode = Duplex then
- -- We should flush the data written by the writer.
-
- Flush (Stream, Finish);
-
- Close (Stream.Writer);
- end if;
-
- if Stream.Mode = In_Stream or Stream.Mode = Duplex then
- Close (Stream.Reader);
- Free (Stream.Buffer);
- end if;
- end Close;
-
- ------------
- -- Create --
- ------------
-
- procedure Create
- (Stream : out Stream_Type;
- Mode : in Stream_Mode;
- Back : in Stream_Access;
- Back_Compressed : in Boolean;
- Level : in Compression_Level := Default_Compression;
- Strategy : in Strategy_Type := Default_Strategy;
- Header : in Header_Type := Default;
- Read_Buffer_Size : in Ada.Streams.Stream_Element_Offset
- := Default_Buffer_Size;
- Write_Buffer_Size : in Ada.Streams.Stream_Element_Offset
- := Default_Buffer_Size)
- is
-
- subtype Buffer_Subtype is Stream_Element_Array (1 .. Read_Buffer_Size);
-
- procedure Init_Filter
- (Filter : in out Filter_Type;
- Compress : in Boolean);
-
- -----------------
- -- Init_Filter --
- -----------------
-
- procedure Init_Filter
- (Filter : in out Filter_Type;
- Compress : in Boolean) is
- begin
- if Compress then
- Deflate_Init
- (Filter, Level, Strategy, Header => Header);
- else
- Inflate_Init (Filter, Header => Header);
- end if;
- end Init_Filter;
-
- begin
- Stream.Back := Back;
- Stream.Mode := Mode;
-
- if Mode = Out_Stream or Mode = Duplex then
- Init_Filter (Stream.Writer, Back_Compressed);
- Stream.Buffer_Size := Write_Buffer_Size;
- else
- Stream.Buffer_Size := 0;
- end if;
-
- if Mode = In_Stream or Mode = Duplex then
- Init_Filter (Stream.Reader, not Back_Compressed);
-
- Stream.Buffer := new Buffer_Subtype;
- Stream.Rest_First := Stream.Buffer'Last + 1;
- Stream.Rest_Last := Stream.Buffer'Last;
- end if;
- end Create;
-
- -----------
- -- Flush --
- -----------
-
- procedure Flush
- (Stream : in out Stream_Type;
- Mode : in Flush_Mode := Sync_Flush)
- is
- Buffer : Stream_Element_Array (1 .. Stream.Buffer_Size);
- Last : Stream_Element_Offset;
- begin
- loop
- Flush (Stream.Writer, Buffer, Last, Mode);
-
- Ada.Streams.Write (Stream.Back.all, Buffer (1 .. Last));
-
- exit when Last < Buffer'Last;
- end loop;
- end Flush;
-
- -------------
- -- Is_Open --
- -------------
-
- function Is_Open (Stream : Stream_Type) return Boolean is
- begin
- return Is_Open (Stream.Reader) or else Is_Open (Stream.Writer);
- end Is_Open;
-
- ----------
- -- Read --
- ----------
-
- procedure Read
- (Stream : in out Stream_Type;
- Item : out Stream_Element_Array;
- Last : out Stream_Element_Offset)
- is
-
- procedure Read
- (Item : out Stream_Element_Array;
- Last : out Stream_Element_Offset);
-
- ----------
- -- Read --
- ----------
-
- procedure Read
- (Item : out Stream_Element_Array;
- Last : out Stream_Element_Offset) is
- begin
- Ada.Streams.Read (Stream.Back.all, Item, Last);
- end Read;
-
- procedure Read is new ZLib.Read
- (Read => Read,
- Buffer => Stream.Buffer.all,
- Rest_First => Stream.Rest_First,
- Rest_Last => Stream.Rest_Last);
-
- begin
- Read (Stream.Reader, Item, Last);
- end Read;
-
- -------------------
- -- Read_Total_In --
- -------------------
-
- function Read_Total_In (Stream : in Stream_Type) return Count is
- begin
- return Total_In (Stream.Reader);
- end Read_Total_In;
-
- --------------------
- -- Read_Total_Out --
- --------------------
-
- function Read_Total_Out (Stream : in Stream_Type) return Count is
- begin
- return Total_Out (Stream.Reader);
- end Read_Total_Out;
-
- -----------
- -- Write --
- -----------
-
- procedure Write
- (Stream : in out Stream_Type;
- Item : in Stream_Element_Array)
- is
-
- procedure Write (Item : in Stream_Element_Array);
-
- -----------
- -- Write --
- -----------
-
- procedure Write (Item : in Stream_Element_Array) is
- begin
- Ada.Streams.Write (Stream.Back.all, Item);
- end Write;
-
- procedure Write is new ZLib.Write
- (Write => Write,
- Buffer_Size => Stream.Buffer_Size);
-
- begin
- Write (Stream.Writer, Item, No_Flush);
- end Write;
-
- --------------------
- -- Write_Total_In --
- --------------------
-
- function Write_Total_In (Stream : in Stream_Type) return Count is
- begin
- return Total_In (Stream.Writer);
- end Write_Total_In;
-
- ---------------------
- -- Write_Total_Out --
- ---------------------
-
- function Write_Total_Out (Stream : in Stream_Type) return Count is
- begin
- return Total_Out (Stream.Writer);
- end Write_Total_Out;
-
-end ZLib.Streams;
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2003 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
-
--- $Id: zlib-streams.ads,v 1.12 2004/05/31 10:53:40 vagul Exp $
-
-package ZLib.Streams is
-
- type Stream_Mode is (In_Stream, Out_Stream, Duplex);
-
- type Stream_Access is access all Ada.Streams.Root_Stream_Type'Class;
-
- type Stream_Type is
- new Ada.Streams.Root_Stream_Type with private;
-
- procedure Read
- (Stream : in out Stream_Type;
- Item : out Ada.Streams.Stream_Element_Array;
- Last : out Ada.Streams.Stream_Element_Offset);
-
- procedure Write
- (Stream : in out Stream_Type;
- Item : in Ada.Streams.Stream_Element_Array);
-
- procedure Flush
- (Stream : in out Stream_Type;
- Mode : in Flush_Mode := Sync_Flush);
- -- Flush the written data to the back stream,
- -- all data placed to the compressor is flushing to the Back stream.
- -- Should not be used untill necessary, becouse it is decreasing
- -- compression.
-
- function Read_Total_In (Stream : in Stream_Type) return Count;
- pragma Inline (Read_Total_In);
- -- Return total number of bytes read from back stream so far.
-
- function Read_Total_Out (Stream : in Stream_Type) return Count;
- pragma Inline (Read_Total_Out);
- -- Return total number of bytes read so far.
-
- function Write_Total_In (Stream : in Stream_Type) return Count;
- pragma Inline (Write_Total_In);
- -- Return total number of bytes written so far.
-
- function Write_Total_Out (Stream : in Stream_Type) return Count;
- pragma Inline (Write_Total_Out);
- -- Return total number of bytes written to the back stream.
-
- procedure Create
- (Stream : out Stream_Type;
- Mode : in Stream_Mode;
- Back : in Stream_Access;
- Back_Compressed : in Boolean;
- Level : in Compression_Level := Default_Compression;
- Strategy : in Strategy_Type := Default_Strategy;
- Header : in Header_Type := Default;
- Read_Buffer_Size : in Ada.Streams.Stream_Element_Offset
- := Default_Buffer_Size;
- Write_Buffer_Size : in Ada.Streams.Stream_Element_Offset
- := Default_Buffer_Size);
- -- Create the Comression/Decompression stream.
- -- If mode is In_Stream then Write operation is disabled.
- -- If mode is Out_Stream then Read operation is disabled.
-
- -- If Back_Compressed is true then
- -- Data written to the Stream is compressing to the Back stream
- -- and data read from the Stream is decompressed data from the Back stream.
-
- -- If Back_Compressed is false then
- -- Data written to the Stream is decompressing to the Back stream
- -- and data read from the Stream is compressed data from the Back stream.
-
- -- !!! When the Need_Header is False ZLib-Ada is using undocumented
- -- ZLib 1.1.4 functionality to do not create/wait for ZLib headers.
-
- function Is_Open (Stream : Stream_Type) return Boolean;
-
- procedure Close (Stream : in out Stream_Type);
-
-private
-
- use Ada.Streams;
-
- type Buffer_Access is access all Stream_Element_Array;
-
- type Stream_Type
- is new Root_Stream_Type with
- record
- Mode : Stream_Mode;
-
- Buffer : Buffer_Access;
- Rest_First : Stream_Element_Offset;
- Rest_Last : Stream_Element_Offset;
- -- Buffer for Read operation.
- -- We need to have this buffer in the record
- -- becouse not all read data from back stream
- -- could be processed during the read operation.
-
- Buffer_Size : Stream_Element_Offset;
- -- Buffer size for write operation.
- -- We do not need to have this buffer
- -- in the record becouse all data could be
- -- processed in the write operation.
-
- Back : Stream_Access;
- Reader : Filter_Type;
- Writer : Filter_Type;
- end record;
-
-end ZLib.Streams;
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2003 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
-
--- $Id: zlib-thin.adb,v 1.8 2003/12/14 18:27:31 vagul Exp $
-
-package body ZLib.Thin is
-
- ZLIB_VERSION : constant Chars_Ptr := zlibVersion;
-
- Z_Stream_Size : constant Int := Z_Stream'Size / System.Storage_Unit;
-
- --------------
- -- Avail_In --
- --------------
-
- function Avail_In (Strm : in Z_Stream) return UInt is
- begin
- return Strm.Avail_In;
- end Avail_In;
-
- ---------------
- -- Avail_Out --
- ---------------
-
- function Avail_Out (Strm : in Z_Stream) return UInt is
- begin
- return Strm.Avail_Out;
- end Avail_Out;
-
- ------------------
- -- Deflate_Init --
- ------------------
-
- function Deflate_Init
- (strm : Z_Streamp;
- level : Int;
- method : Int;
- windowBits : Int;
- memLevel : Int;
- strategy : Int)
- return Int is
- begin
- return deflateInit2
- (strm,
- level,
- method,
- windowBits,
- memLevel,
- strategy,
- ZLIB_VERSION,
- Z_Stream_Size);
- end Deflate_Init;
-
- ------------------
- -- Inflate_Init --
- ------------------
-
- function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int is
- begin
- return inflateInit2 (strm, windowBits, ZLIB_VERSION, Z_Stream_Size);
- end Inflate_Init;
-
- ------------------------
- -- Last_Error_Message --
- ------------------------
-
- function Last_Error_Message (Strm : in Z_Stream) return String is
- use Interfaces.C.Strings;
- begin
- if Strm.msg = Null_Ptr then
- return "";
- else
- return Value (Strm.msg);
- end if;
- end Last_Error_Message;
-
- ------------
- -- Set_In --
- ------------
-
- procedure Set_In
- (Strm : in out Z_Stream;
- Buffer : in Voidp;
- Size : in UInt) is
- begin
- Strm.Next_In := Buffer;
- Strm.Avail_In := Size;
- end Set_In;
-
- ------------------
- -- Set_Mem_Func --
- ------------------
-
- procedure Set_Mem_Func
- (Strm : in out Z_Stream;
- Opaque : in Voidp;
- Alloc : in alloc_func;
- Free : in free_func) is
- begin
- Strm.opaque := Opaque;
- Strm.zalloc := Alloc;
- Strm.zfree := Free;
- end Set_Mem_Func;
-
- -------------
- -- Set_Out --
- -------------
-
- procedure Set_Out
- (Strm : in out Z_Stream;
- Buffer : in Voidp;
- Size : in UInt) is
- begin
- Strm.Next_Out := Buffer;
- Strm.Avail_Out := Size;
- end Set_Out;
-
- --------------
- -- Total_In --
- --------------
-
- function Total_In (Strm : in Z_Stream) return ULong is
- begin
- return Strm.Total_In;
- end Total_In;
-
- ---------------
- -- Total_Out --
- ---------------
-
- function Total_Out (Strm : in Z_Stream) return ULong is
- begin
- return Strm.Total_Out;
- end Total_Out;
-
-end ZLib.Thin;
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2003 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
-
--- $Id: zlib-thin.ads,v 1.11 2004/07/23 06:33:11 vagul Exp $
-
-with Interfaces.C.Strings;
-
-with System;
-
-private package ZLib.Thin is
-
- -- From zconf.h
-
- MAX_MEM_LEVEL : constant := 9; -- zconf.h:105
- -- zconf.h:105
- MAX_WBITS : constant := 15; -- zconf.h:115
- -- 32K LZ77 window
- -- zconf.h:115
- SEEK_SET : constant := 8#0000#; -- zconf.h:244
- -- Seek from beginning of file.
- -- zconf.h:244
- SEEK_CUR : constant := 1; -- zconf.h:245
- -- Seek from current position.
- -- zconf.h:245
- SEEK_END : constant := 2; -- zconf.h:246
- -- Set file pointer to EOF plus "offset"
- -- zconf.h:246
-
- type Byte is new Interfaces.C.unsigned_char; -- 8 bits
- -- zconf.h:214
- type UInt is new Interfaces.C.unsigned; -- 16 bits or more
- -- zconf.h:216
- type Int is new Interfaces.C.int;
-
- type ULong is new Interfaces.C.unsigned_long; -- 32 bits or more
- -- zconf.h:217
- subtype Chars_Ptr is Interfaces.C.Strings.chars_ptr;
-
- type ULong_Access is access ULong;
- type Int_Access is access Int;
-
- subtype Voidp is System.Address; -- zconf.h:232
-
- subtype Byte_Access is Voidp;
-
- Nul : constant Voidp := System.Null_Address;
- -- end from zconf
-
- Z_NO_FLUSH : constant := 8#0000#; -- zlib.h:125
- -- zlib.h:125
- Z_PARTIAL_FLUSH : constant := 1; -- zlib.h:126
- -- will be removed, use
- -- Z_SYNC_FLUSH instead
- -- zlib.h:126
- Z_SYNC_FLUSH : constant := 2; -- zlib.h:127
- -- zlib.h:127
- Z_FULL_FLUSH : constant := 3; -- zlib.h:128
- -- zlib.h:128
- Z_FINISH : constant := 4; -- zlib.h:129
- -- zlib.h:129
- Z_OK : constant := 8#0000#; -- zlib.h:132
- -- zlib.h:132
- Z_STREAM_END : constant := 1; -- zlib.h:133
- -- zlib.h:133
- Z_NEED_DICT : constant := 2; -- zlib.h:134
- -- zlib.h:134
- Z_ERRNO : constant := -1; -- zlib.h:135
- -- zlib.h:135
- Z_STREAM_ERROR : constant := -2; -- zlib.h:136
- -- zlib.h:136
- Z_DATA_ERROR : constant := -3; -- zlib.h:137
- -- zlib.h:137
- Z_MEM_ERROR : constant := -4; -- zlib.h:138
- -- zlib.h:138
- Z_BUF_ERROR : constant := -5; -- zlib.h:139
- -- zlib.h:139
- Z_VERSION_ERROR : constant := -6; -- zlib.h:140
- -- zlib.h:140
- Z_NO_COMPRESSION : constant := 8#0000#; -- zlib.h:145
- -- zlib.h:145
- Z_BEST_SPEED : constant := 1; -- zlib.h:146
- -- zlib.h:146
- Z_BEST_COMPRESSION : constant := 9; -- zlib.h:147
- -- zlib.h:147
- Z_DEFAULT_COMPRESSION : constant := -1; -- zlib.h:148
- -- zlib.h:148
- Z_FILTERED : constant := 1; -- zlib.h:151
- -- zlib.h:151
- Z_HUFFMAN_ONLY : constant := 2; -- zlib.h:152
- -- zlib.h:152
- Z_DEFAULT_STRATEGY : constant := 8#0000#; -- zlib.h:153
- -- zlib.h:153
- Z_BINARY : constant := 8#0000#; -- zlib.h:156
- -- zlib.h:156
- Z_ASCII : constant := 1; -- zlib.h:157
- -- zlib.h:157
- Z_UNKNOWN : constant := 2; -- zlib.h:158
- -- zlib.h:158
- Z_DEFLATED : constant := 8; -- zlib.h:161
- -- zlib.h:161
- Z_NULL : constant := 8#0000#; -- zlib.h:164
- -- for initializing zalloc, zfree, opaque
- -- zlib.h:164
- type gzFile is new Voidp; -- zlib.h:646
-
- type Z_Stream is private;
-
- type Z_Streamp is access all Z_Stream; -- zlib.h:89
-
- type alloc_func is access function
- (Opaque : Voidp;
- Items : UInt;
- Size : UInt)
- return Voidp; -- zlib.h:63
-
- type free_func is access procedure (opaque : Voidp; address : Voidp);
-
- function zlibVersion return Chars_Ptr;
-
- function Deflate (strm : Z_Streamp; flush : Int) return Int;
-
- function DeflateEnd (strm : Z_Streamp) return Int;
-
- function Inflate (strm : Z_Streamp; flush : Int) return Int;
-
- function InflateEnd (strm : Z_Streamp) return Int;
-
- function deflateSetDictionary
- (strm : Z_Streamp;
- dictionary : Byte_Access;
- dictLength : UInt)
- return Int;
-
- function deflateCopy (dest : Z_Streamp; source : Z_Streamp) return Int;
- -- zlib.h:478
-
- function deflateReset (strm : Z_Streamp) return Int; -- zlib.h:495
-
- function deflateParams
- (strm : Z_Streamp;
- level : Int;
- strategy : Int)
- return Int; -- zlib.h:506
-
- function inflateSetDictionary
- (strm : Z_Streamp;
- dictionary : Byte_Access;
- dictLength : UInt)
- return Int; -- zlib.h:548
-
- function inflateSync (strm : Z_Streamp) return Int; -- zlib.h:565
-
- function inflateReset (strm : Z_Streamp) return Int; -- zlib.h:580
-
- function compress
- (dest : Byte_Access;
- destLen : ULong_Access;
- source : Byte_Access;
- sourceLen : ULong)
- return Int; -- zlib.h:601
-
- function compress2
- (dest : Byte_Access;
- destLen : ULong_Access;
- source : Byte_Access;
- sourceLen : ULong;
- level : Int)
- return Int; -- zlib.h:615
-
- function uncompress
- (dest : Byte_Access;
- destLen : ULong_Access;
- source : Byte_Access;
- sourceLen : ULong)
- return Int;
-
- function gzopen (path : Chars_Ptr; mode : Chars_Ptr) return gzFile;
-
- function gzdopen (fd : Int; mode : Chars_Ptr) return gzFile;
-
- function gzsetparams
- (file : gzFile;
- level : Int;
- strategy : Int)
- return Int;
-
- function gzread
- (file : gzFile;
- buf : Voidp;
- len : UInt)
- return Int;
-
- function gzwrite
- (file : in gzFile;
- buf : in Voidp;
- len : in UInt)
- return Int;
-
- function gzprintf (file : in gzFile; format : in Chars_Ptr) return Int;
-
- function gzputs (file : in gzFile; s : in Chars_Ptr) return Int;
-
- function gzgets
- (file : gzFile;
- buf : Chars_Ptr;
- len : Int)
- return Chars_Ptr;
-
- function gzputc (file : gzFile; char : Int) return Int;
-
- function gzgetc (file : gzFile) return Int;
-
- function gzflush (file : gzFile; flush : Int) return Int;
-
- function gzseek
- (file : gzFile;
- offset : Int;
- whence : Int)
- return Int;
-
- function gzrewind (file : gzFile) return Int;
-
- function gztell (file : gzFile) return Int;
-
- function gzeof (file : gzFile) return Int;
-
- function gzclose (file : gzFile) return Int;
-
- function gzerror (file : gzFile; errnum : Int_Access) return Chars_Ptr;
-
- function adler32
- (adler : ULong;
- buf : Byte_Access;
- len : UInt)
- return ULong;
-
- function crc32
- (crc : ULong;
- buf : Byte_Access;
- len : UInt)
- return ULong;
-
- function deflateInit
- (strm : Z_Streamp;
- level : Int;
- version : Chars_Ptr;
- stream_size : Int)
- return Int;
-
- function deflateInit2
- (strm : Z_Streamp;
- level : Int;
- method : Int;
- windowBits : Int;
- memLevel : Int;
- strategy : Int;
- version : Chars_Ptr;
- stream_size : Int)
- return Int;
-
- function Deflate_Init
- (strm : Z_Streamp;
- level : Int;
- method : Int;
- windowBits : Int;
- memLevel : Int;
- strategy : Int)
- return Int;
- pragma Inline (Deflate_Init);
-
- function inflateInit
- (strm : Z_Streamp;
- version : Chars_Ptr;
- stream_size : Int)
- return Int;
-
- function inflateInit2
- (strm : in Z_Streamp;
- windowBits : in Int;
- version : in Chars_Ptr;
- stream_size : in Int)
- return Int;
-
- function inflateBackInit
- (strm : in Z_Streamp;
- windowBits : in Int;
- window : in Byte_Access;
- version : in Chars_Ptr;
- stream_size : in Int)
- return Int;
- -- Size of window have to be 2**windowBits.
-
- function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int;
- pragma Inline (Inflate_Init);
-
- function zError (err : Int) return Chars_Ptr;
-
- function inflateSyncPoint (z : Z_Streamp) return Int;
-
- function get_crc_table return ULong_Access;
-
- -- Interface to the available fields of the z_stream structure.
- -- The application must update next_in and avail_in when avail_in has
- -- dropped to zero. It must update next_out and avail_out when avail_out
- -- has dropped to zero. The application must initialize zalloc, zfree and
- -- opaque before calling the init function.
-
- procedure Set_In
- (Strm : in out Z_Stream;
- Buffer : in Voidp;
- Size : in UInt);
- pragma Inline (Set_In);
-
- procedure Set_Out
- (Strm : in out Z_Stream;
- Buffer : in Voidp;
- Size : in UInt);
- pragma Inline (Set_Out);
-
- procedure Set_Mem_Func
- (Strm : in out Z_Stream;
- Opaque : in Voidp;
- Alloc : in alloc_func;
- Free : in free_func);
- pragma Inline (Set_Mem_Func);
-
- function Last_Error_Message (Strm : in Z_Stream) return String;
- pragma Inline (Last_Error_Message);
-
- function Avail_Out (Strm : in Z_Stream) return UInt;
- pragma Inline (Avail_Out);
-
- function Avail_In (Strm : in Z_Stream) return UInt;
- pragma Inline (Avail_In);
-
- function Total_In (Strm : in Z_Stream) return ULong;
- pragma Inline (Total_In);
-
- function Total_Out (Strm : in Z_Stream) return ULong;
- pragma Inline (Total_Out);
-
- function inflateCopy
- (dest : in Z_Streamp;
- Source : in Z_Streamp)
- return Int;
-
- function compressBound (Source_Len : in ULong) return ULong;
-
- function deflateBound
- (Strm : in Z_Streamp;
- Source_Len : in ULong)
- return ULong;
-
- function gzungetc (C : in Int; File : in gzFile) return Int;
-
- function zlibCompileFlags return ULong;
-
-private
-
- type Z_Stream is record -- zlib.h:68
- Next_In : Voidp := Nul; -- next input byte
- Avail_In : UInt := 0; -- number of bytes available at next_in
- Total_In : ULong := 0; -- total nb of input bytes read so far
- Next_Out : Voidp := Nul; -- next output byte should be put there
- Avail_Out : UInt := 0; -- remaining free space at next_out
- Total_Out : ULong := 0; -- total nb of bytes output so far
- msg : Chars_Ptr; -- last error message, NULL if no error
- state : Voidp; -- not visible by applications
- zalloc : alloc_func := null; -- used to allocate the internal state
- zfree : free_func := null; -- used to free the internal state
- opaque : Voidp; -- private data object passed to
- -- zalloc and zfree
- data_type : Int; -- best guess about the data type:
- -- ascii or binary
- adler : ULong; -- adler32 value of the uncompressed
- -- data
- reserved : ULong; -- reserved for future use
- end record;
-
- pragma Convention (C, Z_Stream);
-
- pragma Import (C, zlibVersion, "zlibVersion");
- pragma Import (C, Deflate, "deflate");
- pragma Import (C, DeflateEnd, "deflateEnd");
- pragma Import (C, Inflate, "inflate");
- pragma Import (C, InflateEnd, "inflateEnd");
- pragma Import (C, deflateSetDictionary, "deflateSetDictionary");
- pragma Import (C, deflateCopy, "deflateCopy");
- pragma Import (C, deflateReset, "deflateReset");
- pragma Import (C, deflateParams, "deflateParams");
- pragma Import (C, inflateSetDictionary, "inflateSetDictionary");
- pragma Import (C, inflateSync, "inflateSync");
- pragma Import (C, inflateReset, "inflateReset");
- pragma Import (C, compress, "compress");
- pragma Import (C, compress2, "compress2");
- pragma Import (C, uncompress, "uncompress");
- pragma Import (C, gzopen, "gzopen");
- pragma Import (C, gzdopen, "gzdopen");
- pragma Import (C, gzsetparams, "gzsetparams");
- pragma Import (C, gzread, "gzread");
- pragma Import (C, gzwrite, "gzwrite");
- pragma Import (C, gzprintf, "gzprintf");
- pragma Import (C, gzputs, "gzputs");
- pragma Import (C, gzgets, "gzgets");
- pragma Import (C, gzputc, "gzputc");
- pragma Import (C, gzgetc, "gzgetc");
- pragma Import (C, gzflush, "gzflush");
- pragma Import (C, gzseek, "gzseek");
- pragma Import (C, gzrewind, "gzrewind");
- pragma Import (C, gztell, "gztell");
- pragma Import (C, gzeof, "gzeof");
- pragma Import (C, gzclose, "gzclose");
- pragma Import (C, gzerror, "gzerror");
- pragma Import (C, adler32, "adler32");
- pragma Import (C, crc32, "crc32");
- pragma Import (C, deflateInit, "deflateInit_");
- pragma Import (C, inflateInit, "inflateInit_");
- pragma Import (C, deflateInit2, "deflateInit2_");
- pragma Import (C, inflateInit2, "inflateInit2_");
- pragma Import (C, zError, "zError");
- pragma Import (C, inflateSyncPoint, "inflateSyncPoint");
- pragma Import (C, get_crc_table, "get_crc_table");
-
- -- since zlib 1.2.0:
-
- pragma Import (C, inflateCopy, "inflateCopy");
- pragma Import (C, compressBound, "compressBound");
- pragma Import (C, deflateBound, "deflateBound");
- pragma Import (C, gzungetc, "gzungetc");
- pragma Import (C, zlibCompileFlags, "zlibCompileFlags");
-
- pragma Import (C, inflateBackInit, "inflateBackInit_");
-
- -- I stopped binding the inflateBack routines, becouse realize that
- -- it does not support zlib and gzip headers for now, and have no
- -- symmetric deflateBack routines.
- -- ZLib-Ada is symmetric regarding deflate/inflate data transformation
- -- and has a similar generic callback interface for the
- -- deflate/inflate transformation based on the regular Deflate/Inflate
- -- routines.
-
- -- pragma Import (C, inflateBack, "inflateBack");
- -- pragma Import (C, inflateBackEnd, "inflateBackEnd");
-
-end ZLib.Thin;
+++ /dev/null
-----------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2004 Dmitriy Anisimkov --
--- --
--- Open source license information is in the zlib.ads file. --
-----------------------------------------------------------------
-
--- $Id: zlib.adb,v 1.31 2004/09/06 06:53:19 vagul Exp $
-
-with Ada.Exceptions;
-with Ada.Unchecked_Conversion;
-with Ada.Unchecked_Deallocation;
-
-with Interfaces.C.Strings;
-
-with ZLib.Thin;
-
-package body ZLib is
-
- use type Thin.Int;
-
- type Z_Stream is new Thin.Z_Stream;
-
- type Return_Code_Enum is
- (OK,
- STREAM_END,
- NEED_DICT,
- ERRNO,
- STREAM_ERROR,
- DATA_ERROR,
- MEM_ERROR,
- BUF_ERROR,
- VERSION_ERROR);
-
- type Flate_Step_Function is access
- function (Strm : in Thin.Z_Streamp; Flush : in Thin.Int) return Thin.Int;
- pragma Convention (C, Flate_Step_Function);
-
- type Flate_End_Function is access
- function (Ctrm : in Thin.Z_Streamp) return Thin.Int;
- pragma Convention (C, Flate_End_Function);
-
- type Flate_Type is record
- Step : Flate_Step_Function;
- Done : Flate_End_Function;
- end record;
-
- subtype Footer_Array is Stream_Element_Array (1 .. 8);
-
- Simple_GZip_Header : constant Stream_Element_Array (1 .. 10)
- := (16#1f#, 16#8b#, -- Magic header
- 16#08#, -- Z_DEFLATED
- 16#00#, -- Flags
- 16#00#, 16#00#, 16#00#, 16#00#, -- Time
- 16#00#, -- XFlags
- 16#03# -- OS code
- );
- -- The simplest gzip header is not for informational, but just for
- -- gzip format compatibility.
- -- Note that some code below is using assumption
- -- Simple_GZip_Header'Last > Footer_Array'Last, so do not make
- -- Simple_GZip_Header'Last <= Footer_Array'Last.
-
- Return_Code : constant array (Thin.Int range <>) of Return_Code_Enum
- := (0 => OK,
- 1 => STREAM_END,
- 2 => NEED_DICT,
- -1 => ERRNO,
- -2 => STREAM_ERROR,
- -3 => DATA_ERROR,
- -4 => MEM_ERROR,
- -5 => BUF_ERROR,
- -6 => VERSION_ERROR);
-
- Flate : constant array (Boolean) of Flate_Type
- := (True => (Step => Thin.Deflate'Access,
- Done => Thin.DeflateEnd'Access),
- False => (Step => Thin.Inflate'Access,
- Done => Thin.InflateEnd'Access));
-
- Flush_Finish : constant array (Boolean) of Flush_Mode
- := (True => Finish, False => No_Flush);
-
- procedure Raise_Error (Stream : in Z_Stream);
- pragma Inline (Raise_Error);
-
- procedure Raise_Error (Message : in String);
- pragma Inline (Raise_Error);
-
- procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int);
-
- procedure Free is new Ada.Unchecked_Deallocation
- (Z_Stream, Z_Stream_Access);
-
- function To_Thin_Access is new Ada.Unchecked_Conversion
- (Z_Stream_Access, Thin.Z_Streamp);
-
- procedure Translate_GZip
- (Filter : in out Filter_Type;
- In_Data : in Ada.Streams.Stream_Element_Array;
- In_Last : out Ada.Streams.Stream_Element_Offset;
- Out_Data : out Ada.Streams.Stream_Element_Array;
- Out_Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode);
- -- Separate translate routine for make gzip header.
-
- procedure Translate_Auto
- (Filter : in out Filter_Type;
- In_Data : in Ada.Streams.Stream_Element_Array;
- In_Last : out Ada.Streams.Stream_Element_Offset;
- Out_Data : out Ada.Streams.Stream_Element_Array;
- Out_Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode);
- -- translate routine without additional headers.
-
- -----------------
- -- Check_Error --
- -----------------
-
- procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int) is
- use type Thin.Int;
- begin
- if Code /= Thin.Z_OK then
- Raise_Error
- (Return_Code_Enum'Image (Return_Code (Code))
- & ": " & Last_Error_Message (Stream));
- end if;
- end Check_Error;
-
- -----------
- -- Close --
- -----------
-
- procedure Close
- (Filter : in out Filter_Type;
- Ignore_Error : in Boolean := False)
- is
- Code : Thin.Int;
- begin
- if not Ignore_Error and then not Is_Open (Filter) then
- raise Status_Error;
- end if;
-
- Code := Flate (Filter.Compression).Done (To_Thin_Access (Filter.Strm));
-
- if Ignore_Error or else Code = Thin.Z_OK then
- Free (Filter.Strm);
- else
- declare
- Error_Message : constant String
- := Last_Error_Message (Filter.Strm.all);
- begin
- Free (Filter.Strm);
- Ada.Exceptions.Raise_Exception
- (ZLib_Error'Identity,
- Return_Code_Enum'Image (Return_Code (Code))
- & ": " & Error_Message);
- end;
- end if;
- end Close;
-
- -----------
- -- CRC32 --
- -----------
-
- function CRC32
- (CRC : in Unsigned_32;
- Data : in Ada.Streams.Stream_Element_Array)
- return Unsigned_32
- is
- use Thin;
- begin
- return Unsigned_32 (crc32 (ULong (CRC),
- Data'Address,
- Data'Length));
- end CRC32;
-
- procedure CRC32
- (CRC : in out Unsigned_32;
- Data : in Ada.Streams.Stream_Element_Array) is
- begin
- CRC := CRC32 (CRC, Data);
- end CRC32;
-
- ------------------
- -- Deflate_Init --
- ------------------
-
- procedure Deflate_Init
- (Filter : in out Filter_Type;
- Level : in Compression_Level := Default_Compression;
- Strategy : in Strategy_Type := Default_Strategy;
- Method : in Compression_Method := Deflated;
- Window_Bits : in Window_Bits_Type := Default_Window_Bits;
- Memory_Level : in Memory_Level_Type := Default_Memory_Level;
- Header : in Header_Type := Default)
- is
- use type Thin.Int;
- Win_Bits : Thin.Int := Thin.Int (Window_Bits);
- begin
- if Is_Open (Filter) then
- raise Status_Error;
- end if;
-
- -- We allow ZLib to make header only in case of default header type.
- -- Otherwise we would either do header by ourselfs, or do not do
- -- header at all.
-
- if Header = None or else Header = GZip then
- Win_Bits := -Win_Bits;
- end if;
-
- -- For the GZip CRC calculation and make headers.
-
- if Header = GZip then
- Filter.CRC := 0;
- Filter.Offset := Simple_GZip_Header'First;
- else
- Filter.Offset := Simple_GZip_Header'Last + 1;
- end if;
-
- Filter.Strm := new Z_Stream;
- Filter.Compression := True;
- Filter.Stream_End := False;
- Filter.Header := Header;
-
- if Thin.Deflate_Init
- (To_Thin_Access (Filter.Strm),
- Level => Thin.Int (Level),
- method => Thin.Int (Method),
- windowBits => Win_Bits,
- memLevel => Thin.Int (Memory_Level),
- strategy => Thin.Int (Strategy)) /= Thin.Z_OK
- then
- Raise_Error (Filter.Strm.all);
- end if;
- end Deflate_Init;
-
- -----------
- -- Flush --
- -----------
-
- procedure Flush
- (Filter : in out Filter_Type;
- Out_Data : out Ada.Streams.Stream_Element_Array;
- Out_Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode)
- is
- No_Data : Stream_Element_Array := (1 .. 0 => 0);
- Last : Stream_Element_Offset;
- begin
- Translate (Filter, No_Data, Last, Out_Data, Out_Last, Flush);
- end Flush;
-
- -----------------------
- -- Generic_Translate --
- -----------------------
-
- procedure Generic_Translate
- (Filter : in out ZLib.Filter_Type;
- In_Buffer_Size : in Integer := Default_Buffer_Size;
- Out_Buffer_Size : in Integer := Default_Buffer_Size)
- is
- In_Buffer : Stream_Element_Array
- (1 .. Stream_Element_Offset (In_Buffer_Size));
- Out_Buffer : Stream_Element_Array
- (1 .. Stream_Element_Offset (Out_Buffer_Size));
- Last : Stream_Element_Offset;
- In_Last : Stream_Element_Offset;
- In_First : Stream_Element_Offset;
- Out_Last : Stream_Element_Offset;
- begin
- Main : loop
- Data_In (In_Buffer, Last);
-
- In_First := In_Buffer'First;
-
- loop
- Translate
- (Filter => Filter,
- In_Data => In_Buffer (In_First .. Last),
- In_Last => In_Last,
- Out_Data => Out_Buffer,
- Out_Last => Out_Last,
- Flush => Flush_Finish (Last < In_Buffer'First));
-
- if Out_Buffer'First <= Out_Last then
- Data_Out (Out_Buffer (Out_Buffer'First .. Out_Last));
- end if;
-
- exit Main when Stream_End (Filter);
-
- -- The end of in buffer.
-
- exit when In_Last = Last;
-
- In_First := In_Last + 1;
- end loop;
- end loop Main;
-
- end Generic_Translate;
-
- ------------------
- -- Inflate_Init --
- ------------------
-
- procedure Inflate_Init
- (Filter : in out Filter_Type;
- Window_Bits : in Window_Bits_Type := Default_Window_Bits;
- Header : in Header_Type := Default)
- is
- use type Thin.Int;
- Win_Bits : Thin.Int := Thin.Int (Window_Bits);
-
- procedure Check_Version;
- -- Check the latest header types compatibility.
-
- procedure Check_Version is
- begin
- if Version <= "1.1.4" then
- Raise_Error
- ("Inflate header type " & Header_Type'Image (Header)
- & " incompatible with ZLib version " & Version);
- end if;
- end Check_Version;
-
- begin
- if Is_Open (Filter) then
- raise Status_Error;
- end if;
-
- case Header is
- when None =>
- Check_Version;
-
- -- Inflate data without headers determined
- -- by negative Win_Bits.
-
- Win_Bits := -Win_Bits;
- when GZip =>
- Check_Version;
-
- -- Inflate gzip data defined by flag 16.
-
- Win_Bits := Win_Bits + 16;
- when Auto =>
- Check_Version;
-
- -- Inflate with automatic detection
- -- of gzip or native header defined by flag 32.
-
- Win_Bits := Win_Bits + 32;
- when Default => null;
- end case;
-
- Filter.Strm := new Z_Stream;
- Filter.Compression := False;
- Filter.Stream_End := False;
- Filter.Header := Header;
-
- if Thin.Inflate_Init
- (To_Thin_Access (Filter.Strm), Win_Bits) /= Thin.Z_OK
- then
- Raise_Error (Filter.Strm.all);
- end if;
- end Inflate_Init;
-
- -------------
- -- Is_Open --
- -------------
-
- function Is_Open (Filter : in Filter_Type) return Boolean is
- begin
- return Filter.Strm /= null;
- end Is_Open;
-
- -----------------
- -- Raise_Error --
- -----------------
-
- procedure Raise_Error (Message : in String) is
- begin
- Ada.Exceptions.Raise_Exception (ZLib_Error'Identity, Message);
- end Raise_Error;
-
- procedure Raise_Error (Stream : in Z_Stream) is
- begin
- Raise_Error (Last_Error_Message (Stream));
- end Raise_Error;
-
- ----------
- -- Read --
- ----------
-
- procedure Read
- (Filter : in out Filter_Type;
- Item : out Ada.Streams.Stream_Element_Array;
- Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode := No_Flush)
- is
- In_Last : Stream_Element_Offset;
- Item_First : Ada.Streams.Stream_Element_Offset := Item'First;
- V_Flush : Flush_Mode := Flush;
-
- begin
- pragma Assert (Rest_First in Buffer'First .. Buffer'Last + 1);
- pragma Assert (Rest_Last in Buffer'First - 1 .. Buffer'Last);
-
- loop
- if Rest_Last = Buffer'First - 1 then
- V_Flush := Finish;
-
- elsif Rest_First > Rest_Last then
- Read (Buffer, Rest_Last);
- Rest_First := Buffer'First;
-
- if Rest_Last < Buffer'First then
- V_Flush := Finish;
- end if;
- end if;
-
- Translate
- (Filter => Filter,
- In_Data => Buffer (Rest_First .. Rest_Last),
- In_Last => In_Last,
- Out_Data => Item (Item_First .. Item'Last),
- Out_Last => Last,
- Flush => V_Flush);
-
- Rest_First := In_Last + 1;
-
- exit when Stream_End (Filter)
- or else Last = Item'Last
- or else (Last >= Item'First and then Allow_Read_Some);
-
- Item_First := Last + 1;
- end loop;
- end Read;
-
- ----------------
- -- Stream_End --
- ----------------
-
- function Stream_End (Filter : in Filter_Type) return Boolean is
- begin
- if Filter.Header = GZip and Filter.Compression then
- return Filter.Stream_End
- and then Filter.Offset = Footer_Array'Last + 1;
- else
- return Filter.Stream_End;
- end if;
- end Stream_End;
-
- --------------
- -- Total_In --
- --------------
-
- function Total_In (Filter : in Filter_Type) return Count is
- begin
- return Count (Thin.Total_In (To_Thin_Access (Filter.Strm).all));
- end Total_In;
-
- ---------------
- -- Total_Out --
- ---------------
-
- function Total_Out (Filter : in Filter_Type) return Count is
- begin
- return Count (Thin.Total_Out (To_Thin_Access (Filter.Strm).all));
- end Total_Out;
-
- ---------------
- -- Translate --
- ---------------
-
- procedure Translate
- (Filter : in out Filter_Type;
- In_Data : in Ada.Streams.Stream_Element_Array;
- In_Last : out Ada.Streams.Stream_Element_Offset;
- Out_Data : out Ada.Streams.Stream_Element_Array;
- Out_Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode) is
- begin
- if Filter.Header = GZip and then Filter.Compression then
- Translate_GZip
- (Filter => Filter,
- In_Data => In_Data,
- In_Last => In_Last,
- Out_Data => Out_Data,
- Out_Last => Out_Last,
- Flush => Flush);
- else
- Translate_Auto
- (Filter => Filter,
- In_Data => In_Data,
- In_Last => In_Last,
- Out_Data => Out_Data,
- Out_Last => Out_Last,
- Flush => Flush);
- end if;
- end Translate;
-
- --------------------
- -- Translate_Auto --
- --------------------
-
- procedure Translate_Auto
- (Filter : in out Filter_Type;
- In_Data : in Ada.Streams.Stream_Element_Array;
- In_Last : out Ada.Streams.Stream_Element_Offset;
- Out_Data : out Ada.Streams.Stream_Element_Array;
- Out_Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode)
- is
- use type Thin.Int;
- Code : Thin.Int;
-
- begin
- if not Is_Open (Filter) then
- raise Status_Error;
- end if;
-
- if Out_Data'Length = 0 and then In_Data'Length = 0 then
- raise Constraint_Error;
- end if;
-
- Set_Out (Filter.Strm.all, Out_Data'Address, Out_Data'Length);
- Set_In (Filter.Strm.all, In_Data'Address, In_Data'Length);
-
- Code := Flate (Filter.Compression).Step
- (To_Thin_Access (Filter.Strm),
- Thin.Int (Flush));
-
- if Code = Thin.Z_STREAM_END then
- Filter.Stream_End := True;
- else
- Check_Error (Filter.Strm.all, Code);
- end if;
-
- In_Last := In_Data'Last
- - Stream_Element_Offset (Avail_In (Filter.Strm.all));
- Out_Last := Out_Data'Last
- - Stream_Element_Offset (Avail_Out (Filter.Strm.all));
- end Translate_Auto;
-
- --------------------
- -- Translate_GZip --
- --------------------
-
- procedure Translate_GZip
- (Filter : in out Filter_Type;
- In_Data : in Ada.Streams.Stream_Element_Array;
- In_Last : out Ada.Streams.Stream_Element_Offset;
- Out_Data : out Ada.Streams.Stream_Element_Array;
- Out_Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode)
- is
- Out_First : Stream_Element_Offset;
-
- procedure Add_Data (Data : in Stream_Element_Array);
- -- Add data to stream from the Filter.Offset till necessary,
- -- used for add gzip headr/footer.
-
- procedure Put_32
- (Item : in out Stream_Element_Array;
- Data : in Unsigned_32);
- pragma Inline (Put_32);
-
- --------------
- -- Add_Data --
- --------------
-
- procedure Add_Data (Data : in Stream_Element_Array) is
- Data_First : Stream_Element_Offset renames Filter.Offset;
- Data_Last : Stream_Element_Offset;
- Data_Len : Stream_Element_Offset; -- -1
- Out_Len : Stream_Element_Offset; -- -1
- begin
- Out_First := Out_Last + 1;
-
- if Data_First > Data'Last then
- return;
- end if;
-
- Data_Len := Data'Last - Data_First;
- Out_Len := Out_Data'Last - Out_First;
-
- if Data_Len <= Out_Len then
- Out_Last := Out_First + Data_Len;
- Data_Last := Data'Last;
- else
- Out_Last := Out_Data'Last;
- Data_Last := Data_First + Out_Len;
- end if;
-
- Out_Data (Out_First .. Out_Last) := Data (Data_First .. Data_Last);
-
- Data_First := Data_Last + 1;
- Out_First := Out_Last + 1;
- end Add_Data;
-
- ------------
- -- Put_32 --
- ------------
-
- procedure Put_32
- (Item : in out Stream_Element_Array;
- Data : in Unsigned_32)
- is
- D : Unsigned_32 := Data;
- begin
- for J in Item'First .. Item'First + 3 loop
- Item (J) := Stream_Element (D and 16#FF#);
- D := Shift_Right (D, 8);
- end loop;
- end Put_32;
-
- begin
- Out_Last := Out_Data'First - 1;
-
- if not Filter.Stream_End then
- Add_Data (Simple_GZip_Header);
-
- Translate_Auto
- (Filter => Filter,
- In_Data => In_Data,
- In_Last => In_Last,
- Out_Data => Out_Data (Out_First .. Out_Data'Last),
- Out_Last => Out_Last,
- Flush => Flush);
-
- CRC32 (Filter.CRC, In_Data (In_Data'First .. In_Last));
- end if;
-
- if Filter.Stream_End and then Out_Last <= Out_Data'Last then
- -- This detection method would work only when
- -- Simple_GZip_Header'Last > Footer_Array'Last
-
- if Filter.Offset = Simple_GZip_Header'Last + 1 then
- Filter.Offset := Footer_Array'First;
- end if;
-
- declare
- Footer : Footer_Array;
- begin
- Put_32 (Footer, Filter.CRC);
- Put_32 (Footer (Footer'First + 4 .. Footer'Last),
- Unsigned_32 (Total_In (Filter)));
- Add_Data (Footer);
- end;
- end if;
- end Translate_GZip;
-
- -------------
- -- Version --
- -------------
-
- function Version return String is
- begin
- return Interfaces.C.Strings.Value (Thin.zlibVersion);
- end Version;
-
- -----------
- -- Write --
- -----------
-
- procedure Write
- (Filter : in out Filter_Type;
- Item : in Ada.Streams.Stream_Element_Array;
- Flush : in Flush_Mode := No_Flush)
- is
- Buffer : Stream_Element_Array (1 .. Buffer_Size);
- In_Last : Stream_Element_Offset;
- Out_Last : Stream_Element_Offset;
- In_First : Stream_Element_Offset := Item'First;
- begin
- if Item'Length = 0 and Flush = No_Flush then
- return;
- end if;
-
- loop
- Translate
- (Filter => Filter,
- In_Data => Item (In_First .. Item'Last),
- In_Last => In_Last,
- Out_Data => Buffer,
- Out_Last => Out_Last,
- Flush => Flush);
-
- if Out_Last >= Buffer'First then
- Write (Buffer (1 .. Out_Last));
- end if;
-
- exit when In_Last = Item'Last or Stream_End (Filter);
-
- In_First := In_Last + 1;
- end loop;
- end Write;
-
-end ZLib;
+++ /dev/null
-------------------------------------------------------------------------------
--- ZLib for Ada thick binding. --
--- --
--- Copyright (C) 2002-2004 Dmitriy Anisimkov --
--- --
--- This library is free software; you can redistribute it and/or modify --
--- it under the terms of the GNU General Public License as published by --
--- the Free Software Foundation; either version 2 of the License, or (at --
--- your option) any later version. --
--- --
--- This library is distributed in the hope that it will be useful, but --
--- WITHOUT ANY WARRANTY; without even the implied warranty of --
--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
--- General Public License for more details. --
--- --
--- You should have received a copy of the GNU General Public License --
--- along with this library; if not, write to the Free Software Foundation, --
--- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
-------------------------------------------------------------------------------
-
--- $Id: zlib.ads,v 1.26 2004/09/06 06:53:19 vagul Exp $
-
-with Ada.Streams;
-
-with Interfaces;
-
-package ZLib is
-
- ZLib_Error : exception;
- Status_Error : exception;
-
- type Compression_Level is new Integer range -1 .. 9;
-
- type Flush_Mode is private;
-
- type Compression_Method is private;
-
- type Window_Bits_Type is new Integer range 8 .. 15;
-
- type Memory_Level_Type is new Integer range 1 .. 9;
-
- type Unsigned_32 is new Interfaces.Unsigned_32;
-
- type Strategy_Type is private;
-
- type Header_Type is (None, Auto, Default, GZip);
- -- Header type usage have a some limitation for inflate.
- -- See comment for Inflate_Init.
-
- subtype Count is Ada.Streams.Stream_Element_Count;
-
- Default_Memory_Level : constant Memory_Level_Type := 8;
- Default_Window_Bits : constant Window_Bits_Type := 15;
-
- ----------------------------------
- -- Compression method constants --
- ----------------------------------
-
- Deflated : constant Compression_Method;
- -- Only one method allowed in this ZLib version
-
- ---------------------------------
- -- Compression level constants --
- ---------------------------------
-
- No_Compression : constant Compression_Level := 0;
- Best_Speed : constant Compression_Level := 1;
- Best_Compression : constant Compression_Level := 9;
- Default_Compression : constant Compression_Level := -1;
-
- --------------------------
- -- Flush mode constants --
- --------------------------
-
- No_Flush : constant Flush_Mode;
- -- Regular way for compression, no flush
-
- Partial_Flush : constant Flush_Mode;
- -- Will be removed, use Z_SYNC_FLUSH instead
-
- Sync_Flush : constant Flush_Mode;
- -- All pending output is flushed to the output buffer and the output
- -- is aligned on a byte boundary, so that the decompressor can get all
- -- input data available so far. (In particular avail_in is zero after the
- -- call if enough output space has been provided before the call.)
- -- Flushing may degrade compression for some compression algorithms and so
- -- it should be used only when necessary.
-
- Block_Flush : constant Flush_Mode;
- -- Z_BLOCK requests that inflate() stop
- -- if and when it get to the next deflate block boundary. When decoding the
- -- zlib or gzip format, this will cause inflate() to return immediately
- -- after the header and before the first block. When doing a raw inflate,
- -- inflate() will go ahead and process the first block, and will return
- -- when it gets to the end of that block, or when it runs out of data.
-
- Full_Flush : constant Flush_Mode;
- -- All output is flushed as with SYNC_FLUSH, and the compression state
- -- is reset so that decompression can restart from this point if previous
- -- compressed data has been damaged or if random access is desired. Using
- -- Full_Flush too often can seriously degrade the compression.
-
- Finish : constant Flush_Mode;
- -- Just for tell the compressor that input data is complete.
-
- ------------------------------------
- -- Compression strategy constants --
- ------------------------------------
-
- -- RLE stategy could be used only in version 1.2.0 and later.
-
- Filtered : constant Strategy_Type;
- Huffman_Only : constant Strategy_Type;
- RLE : constant Strategy_Type;
- Default_Strategy : constant Strategy_Type;
-
- Default_Buffer_Size : constant := 4096;
-
- type Filter_Type is tagged limited private;
- -- The filter is for compression and for decompression.
- -- The usage of the type is depend of its initialization.
-
- function Version return String;
- pragma Inline (Version);
- -- Return string representation of the ZLib version.
-
- procedure Deflate_Init
- (Filter : in out Filter_Type;
- Level : in Compression_Level := Default_Compression;
- Strategy : in Strategy_Type := Default_Strategy;
- Method : in Compression_Method := Deflated;
- Window_Bits : in Window_Bits_Type := Default_Window_Bits;
- Memory_Level : in Memory_Level_Type := Default_Memory_Level;
- Header : in Header_Type := Default);
- -- Compressor initialization.
- -- When Header parameter is Auto or Default, then default zlib header
- -- would be provided for compressed data.
- -- When Header is GZip, then gzip header would be set instead of
- -- default header.
- -- When Header is None, no header would be set for compressed data.
-
- procedure Inflate_Init
- (Filter : in out Filter_Type;
- Window_Bits : in Window_Bits_Type := Default_Window_Bits;
- Header : in Header_Type := Default);
- -- Decompressor initialization.
- -- Default header type mean that ZLib default header is expecting in the
- -- input compressed stream.
- -- Header type None mean that no header is expecting in the input stream.
- -- GZip header type mean that GZip header is expecting in the
- -- input compressed stream.
- -- Auto header type mean that header type (GZip or Native) would be
- -- detected automatically in the input stream.
- -- Note that header types parameter values None, GZip and Auto are
- -- supported for inflate routine only in ZLib versions 1.2.0.2 and later.
- -- Deflate_Init is supporting all header types.
-
- function Is_Open (Filter : in Filter_Type) return Boolean;
- pragma Inline (Is_Open);
- -- Is the filter opened for compression or decompression.
-
- procedure Close
- (Filter : in out Filter_Type;
- Ignore_Error : in Boolean := False);
- -- Closing the compression or decompressor.
- -- If stream is closing before the complete and Ignore_Error is False,
- -- The exception would be raised.
-
- generic
- with procedure Data_In
- (Item : out Ada.Streams.Stream_Element_Array;
- Last : out Ada.Streams.Stream_Element_Offset);
- with procedure Data_Out
- (Item : in Ada.Streams.Stream_Element_Array);
- procedure Generic_Translate
- (Filter : in out Filter_Type;
- In_Buffer_Size : in Integer := Default_Buffer_Size;
- Out_Buffer_Size : in Integer := Default_Buffer_Size);
- -- Compress/decompress data fetch from Data_In routine and pass the result
- -- to the Data_Out routine. User should provide Data_In and Data_Out
- -- for compression/decompression data flow.
- -- Compression or decompression depend on Filter initialization.
-
- function Total_In (Filter : in Filter_Type) return Count;
- pragma Inline (Total_In);
- -- Returns total number of input bytes read so far
-
- function Total_Out (Filter : in Filter_Type) return Count;
- pragma Inline (Total_Out);
- -- Returns total number of bytes output so far
-
- function CRC32
- (CRC : in Unsigned_32;
- Data : in Ada.Streams.Stream_Element_Array)
- return Unsigned_32;
- pragma Inline (CRC32);
- -- Compute CRC32, it could be necessary for make gzip format
-
- procedure CRC32
- (CRC : in out Unsigned_32;
- Data : in Ada.Streams.Stream_Element_Array);
- pragma Inline (CRC32);
- -- Compute CRC32, it could be necessary for make gzip format
-
- -------------------------------------------------
- -- Below is more complex low level routines. --
- -------------------------------------------------
-
- procedure Translate
- (Filter : in out Filter_Type;
- In_Data : in Ada.Streams.Stream_Element_Array;
- In_Last : out Ada.Streams.Stream_Element_Offset;
- Out_Data : out Ada.Streams.Stream_Element_Array;
- Out_Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode);
- -- Compress/decompress the In_Data buffer and place the result into
- -- Out_Data. In_Last is the index of last element from In_Data accepted by
- -- the Filter. Out_Last is the last element of the received data from
- -- Filter. To tell the filter that incoming data are complete put the
- -- Flush parameter to Finish.
-
- function Stream_End (Filter : in Filter_Type) return Boolean;
- pragma Inline (Stream_End);
- -- Return the true when the stream is complete.
-
- procedure Flush
- (Filter : in out Filter_Type;
- Out_Data : out Ada.Streams.Stream_Element_Array;
- Out_Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode);
- pragma Inline (Flush);
- -- Flushing the data from the compressor.
-
- generic
- with procedure Write
- (Item : in Ada.Streams.Stream_Element_Array);
- -- User should provide this routine for accept
- -- compressed/decompressed data.
-
- Buffer_Size : in Ada.Streams.Stream_Element_Offset
- := Default_Buffer_Size;
- -- Buffer size for Write user routine.
-
- procedure Write
- (Filter : in out Filter_Type;
- Item : in Ada.Streams.Stream_Element_Array;
- Flush : in Flush_Mode := No_Flush);
- -- Compress/Decompress data from Item to the generic parameter procedure
- -- Write. Output buffer size could be set in Buffer_Size generic parameter.
-
- generic
- with procedure Read
- (Item : out Ada.Streams.Stream_Element_Array;
- Last : out Ada.Streams.Stream_Element_Offset);
- -- User should provide data for compression/decompression
- -- thru this routine.
-
- Buffer : in out Ada.Streams.Stream_Element_Array;
- -- Buffer for keep remaining data from the previous
- -- back read.
-
- Rest_First, Rest_Last : in out Ada.Streams.Stream_Element_Offset;
- -- Rest_First have to be initialized to Buffer'Last + 1
- -- Rest_Last have to be initialized to Buffer'Last
- -- before usage.
-
- Allow_Read_Some : in Boolean := False;
- -- Is it allowed to return Last < Item'Last before end of data.
-
- procedure Read
- (Filter : in out Filter_Type;
- Item : out Ada.Streams.Stream_Element_Array;
- Last : out Ada.Streams.Stream_Element_Offset;
- Flush : in Flush_Mode := No_Flush);
- -- Compress/Decompress data from generic parameter procedure Read to the
- -- Item. User should provide Buffer and initialized Rest_First, Rest_Last
- -- indicators. If Allow_Read_Some is True, Read routines could return
- -- Last < Item'Last only at end of stream.
-
-private
-
- use Ada.Streams;
-
- pragma Assert (Ada.Streams.Stream_Element'Size = 8);
- pragma Assert (Ada.Streams.Stream_Element'Modulus = 2**8);
-
- type Flush_Mode is new Integer range 0 .. 5;
-
- type Compression_Method is new Integer range 8 .. 8;
-
- type Strategy_Type is new Integer range 0 .. 3;
-
- No_Flush : constant Flush_Mode := 0;
- Partial_Flush : constant Flush_Mode := 1;
- Sync_Flush : constant Flush_Mode := 2;
- Full_Flush : constant Flush_Mode := 3;
- Finish : constant Flush_Mode := 4;
- Block_Flush : constant Flush_Mode := 5;
-
- Filtered : constant Strategy_Type := 1;
- Huffman_Only : constant Strategy_Type := 2;
- RLE : constant Strategy_Type := 3;
- Default_Strategy : constant Strategy_Type := 0;
-
- Deflated : constant Compression_Method := 8;
-
- type Z_Stream;
-
- type Z_Stream_Access is access all Z_Stream;
-
- type Filter_Type is tagged limited record
- Strm : Z_Stream_Access;
- Compression : Boolean;
- Stream_End : Boolean;
- Header : Header_Type;
- CRC : Unsigned_32;
- Offset : Stream_Element_Offset;
- -- Offset for gzip header/footer output.
- end record;
-
-end ZLib;
+++ /dev/null
-project Zlib is
-
- for Languages use ("Ada");
- for Source_Dirs use (".");
- for Object_Dir use ".";
- for Main use ("test.adb", "mtest.adb", "read.adb", "buffer_demo");
-
- package Compiler is
- for Default_Switches ("ada") use ("-gnatwcfilopru", "-gnatVcdfimorst", "-gnatyabcefhiklmnoprst");
- end Compiler;
-
- package Linker is
- for Default_Switches ("ada") use ("-lz");
- end Linker;
-
- package Builder is
- for Default_Switches ("ada") use ("-s", "-gnatQ");
- end Builder;
-
-end Zlib;
+++ /dev/null
-/*
- * match.S -- optimized version of longest_match()
- * based on the similar work by Gilles Vollant, and Brian Raiter, written 1998
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the BSD License. Use by owners of Che Guevarra
- * parafernalia is prohibited, where possible, and highly discouraged
- * elsewhere.
- */
-
-#ifndef NO_UNDERLINE
-# define match_init _match_init
-# define longest_match _longest_match
-#endif
-
-#define scanend ebx
-#define scanendw bx
-#define chainlenwmask edx /* high word: current chain len low word: s->wmask */
-#define curmatch rsi
-#define curmatchd esi
-#define windowbestlen r8
-#define scanalign r9
-#define scanalignd r9d
-#define window r10
-#define bestlen r11
-#define bestlend r11d
-#define scanstart r12d
-#define scanstartw r12w
-#define scan r13
-#define nicematch r14d
-#define limit r15
-#define limitd r15d
-#define prev rcx
-
-/*
- * The 258 is a "magic number, not a parameter -- changing it
- * breaks the hell loose
- */
-#define MAX_MATCH (258)
-#define MIN_MATCH (3)
-#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1)
-#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7)
-
-/* stack frame offsets */
-#define LocalVarsSize (112)
-#define _chainlenwmask ( 8-LocalVarsSize)(%rsp)
-#define _windowbestlen (16-LocalVarsSize)(%rsp)
-#define save_r14 (24-LocalVarsSize)(%rsp)
-#define save_rsi (32-LocalVarsSize)(%rsp)
-#define save_rbx (40-LocalVarsSize)(%rsp)
-#define save_r12 (56-LocalVarsSize)(%rsp)
-#define save_r13 (64-LocalVarsSize)(%rsp)
-#define save_r15 (80-LocalVarsSize)(%rsp)
-
-
-.globl match_init, longest_match
-
-/*
- * On AMD64 the first argument of a function (in our case -- the pointer to
- * deflate_state structure) is passed in %rdi, hence our offsets below are
- * all off of that.
- */
-
-/* you can check the structure offset by running
-
-#include <stdlib.h>
-#include <stdio.h>
-#include "deflate.h"
-
-void print_depl()
-{
-deflate_state ds;
-deflate_state *s=&ds;
-printf("size pointer=%u\n",(int)sizeof(void*));
-
-printf("#define dsWSize (%3u)(%%rdi)\n",(int)(((char*)&(s->w_size))-((char*)s)));
-printf("#define dsWMask (%3u)(%%rdi)\n",(int)(((char*)&(s->w_mask))-((char*)s)));
-printf("#define dsWindow (%3u)(%%rdi)\n",(int)(((char*)&(s->window))-((char*)s)));
-printf("#define dsPrev (%3u)(%%rdi)\n",(int)(((char*)&(s->prev))-((char*)s)));
-printf("#define dsMatchLen (%3u)(%%rdi)\n",(int)(((char*)&(s->match_length))-((char*)s)));
-printf("#define dsPrevMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_match))-((char*)s)));
-printf("#define dsStrStart (%3u)(%%rdi)\n",(int)(((char*)&(s->strstart))-((char*)s)));
-printf("#define dsMatchStart (%3u)(%%rdi)\n",(int)(((char*)&(s->match_start))-((char*)s)));
-printf("#define dsLookahead (%3u)(%%rdi)\n",(int)(((char*)&(s->lookahead))-((char*)s)));
-printf("#define dsPrevLen (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_length))-((char*)s)));
-printf("#define dsMaxChainLen (%3u)(%%rdi)\n",(int)(((char*)&(s->max_chain_length))-((char*)s)));
-printf("#define dsGoodMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->good_match))-((char*)s)));
-printf("#define dsNiceMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->nice_match))-((char*)s)));
-}
-
-*/
-
-
-/*
- to compile for XCode 3.2 on MacOSX x86_64
- - run "gcc -g -c -DXCODE_MAC_X64_STRUCTURE amd64-match.S"
- */
-
-
-#ifndef CURRENT_LINX_XCODE_MAC_X64_STRUCTURE
-#define dsWSize ( 68)(%rdi)
-#define dsWMask ( 76)(%rdi)
-#define dsWindow ( 80)(%rdi)
-#define dsPrev ( 96)(%rdi)
-#define dsMatchLen (144)(%rdi)
-#define dsPrevMatch (148)(%rdi)
-#define dsStrStart (156)(%rdi)
-#define dsMatchStart (160)(%rdi)
-#define dsLookahead (164)(%rdi)
-#define dsPrevLen (168)(%rdi)
-#define dsMaxChainLen (172)(%rdi)
-#define dsGoodMatch (188)(%rdi)
-#define dsNiceMatch (192)(%rdi)
-
-#else
-
-#ifndef STRUCT_OFFSET
-# define STRUCT_OFFSET (0)
-#endif
-
-
-#define dsWSize ( 56 + STRUCT_OFFSET)(%rdi)
-#define dsWMask ( 64 + STRUCT_OFFSET)(%rdi)
-#define dsWindow ( 72 + STRUCT_OFFSET)(%rdi)
-#define dsPrev ( 88 + STRUCT_OFFSET)(%rdi)
-#define dsMatchLen (136 + STRUCT_OFFSET)(%rdi)
-#define dsPrevMatch (140 + STRUCT_OFFSET)(%rdi)
-#define dsStrStart (148 + STRUCT_OFFSET)(%rdi)
-#define dsMatchStart (152 + STRUCT_OFFSET)(%rdi)
-#define dsLookahead (156 + STRUCT_OFFSET)(%rdi)
-#define dsPrevLen (160 + STRUCT_OFFSET)(%rdi)
-#define dsMaxChainLen (164 + STRUCT_OFFSET)(%rdi)
-#define dsGoodMatch (180 + STRUCT_OFFSET)(%rdi)
-#define dsNiceMatch (184 + STRUCT_OFFSET)(%rdi)
-
-#endif
-
-
-
-
-.text
-
-/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
-
-longest_match:
-/*
- * Retrieve the function arguments. %curmatch will hold cur_match
- * throughout the entire function (passed via rsi on amd64).
- * rdi will hold the pointer to the deflate_state (first arg on amd64)
- */
- mov %rsi, save_rsi
- mov %rbx, save_rbx
- mov %r12, save_r12
- mov %r13, save_r13
- mov %r14, save_r14
- mov %r15, save_r15
-
-/* uInt wmask = s->w_mask; */
-/* unsigned chain_length = s->max_chain_length; */
-/* if (s->prev_length >= s->good_match) { */
-/* chain_length >>= 2; */
-/* } */
-
- movl dsPrevLen, %eax
- movl dsGoodMatch, %ebx
- cmpl %ebx, %eax
- movl dsWMask, %eax
- movl dsMaxChainLen, %chainlenwmask
- jl LastMatchGood
- shrl $2, %chainlenwmask
-LastMatchGood:
-
-/* chainlen is decremented once beforehand so that the function can */
-/* use the sign flag instead of the zero flag for the exit test. */
-/* It is then shifted into the high word, to make room for the wmask */
-/* value, which it will always accompany. */
-
- decl %chainlenwmask
- shll $16, %chainlenwmask
- orl %eax, %chainlenwmask
-
-/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */
-
- movl dsNiceMatch, %eax
- movl dsLookahead, %ebx
- cmpl %eax, %ebx
- jl LookaheadLess
- movl %eax, %ebx
-LookaheadLess: movl %ebx, %nicematch
-
-/* register Bytef *scan = s->window + s->strstart; */
-
- mov dsWindow, %window
- movl dsStrStart, %limitd
- lea (%limit, %window), %scan
-
-/* Determine how many bytes the scan ptr is off from being */
-/* dword-aligned. */
-
- mov %scan, %scanalign
- negl %scanalignd
- andl $3, %scanalignd
-
-/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */
-/* s->strstart - (IPos)MAX_DIST(s) : NIL; */
-
- movl dsWSize, %eax
- subl $MIN_LOOKAHEAD, %eax
- xorl %ecx, %ecx
- subl %eax, %limitd
- cmovng %ecx, %limitd
-
-/* int best_len = s->prev_length; */
-
- movl dsPrevLen, %bestlend
-
-/* Store the sum of s->window + best_len in %windowbestlen locally, and in memory. */
-
- lea (%window, %bestlen), %windowbestlen
- mov %windowbestlen, _windowbestlen
-
-/* register ush scan_start = *(ushf*)scan; */
-/* register ush scan_end = *(ushf*)(scan+best_len-1); */
-/* Posf *prev = s->prev; */
-
- movzwl (%scan), %scanstart
- movzwl -1(%scan, %bestlen), %scanend
- mov dsPrev, %prev
-
-/* Jump into the main loop. */
-
- movl %chainlenwmask, _chainlenwmask
- jmp LoopEntry
-
-.balign 16
-
-/* do {
- * match = s->window + cur_match;
- * if (*(ushf*)(match+best_len-1) != scan_end ||
- * *(ushf*)match != scan_start) continue;
- * [...]
- * } while ((cur_match = prev[cur_match & wmask]) > limit
- * && --chain_length != 0);
- *
- * Here is the inner loop of the function. The function will spend the
- * majority of its time in this loop, and majority of that time will
- * be spent in the first ten instructions.
- */
-LookupLoop:
- andl %chainlenwmask, %curmatchd
- movzwl (%prev, %curmatch, 2), %curmatchd
- cmpl %limitd, %curmatchd
- jbe LeaveNow
- subl $0x00010000, %chainlenwmask
- js LeaveNow
-LoopEntry: cmpw -1(%windowbestlen, %curmatch), %scanendw
- jne LookupLoop
- cmpw %scanstartw, (%window, %curmatch)
- jne LookupLoop
-
-/* Store the current value of chainlen. */
- movl %chainlenwmask, _chainlenwmask
-
-/* %scan is the string under scrutiny, and %prev to the string we */
-/* are hoping to match it up with. In actuality, %esi and %edi are */
-/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */
-/* initialized to -(MAX_MATCH_8 - scanalign). */
-
- mov $(-MAX_MATCH_8), %rdx
- lea (%curmatch, %window), %windowbestlen
- lea MAX_MATCH_8(%windowbestlen, %scanalign), %windowbestlen
- lea MAX_MATCH_8(%scan, %scanalign), %prev
-
-/* the prefetching below makes very little difference... */
- prefetcht1 (%windowbestlen, %rdx)
- prefetcht1 (%prev, %rdx)
-
-/*
- * Test the strings for equality, 8 bytes at a time. At the end,
- * adjust %rdx so that it is offset to the exact byte that mismatched.
- *
- * It should be confessed that this loop usually does not represent
- * much of the total running time. Replacing it with a more
- * straightforward "rep cmpsb" would not drastically degrade
- * performance -- unrolling it, for example, makes no difference.
- */
-
-#undef USE_SSE /* works, but is 6-7% slower, than non-SSE... */
-
-LoopCmps:
-#ifdef USE_SSE
- /* Preload the SSE registers */
- movdqu (%windowbestlen, %rdx), %xmm1
- movdqu (%prev, %rdx), %xmm2
- pcmpeqb %xmm2, %xmm1
- movdqu 16(%windowbestlen, %rdx), %xmm3
- movdqu 16(%prev, %rdx), %xmm4
- pcmpeqb %xmm4, %xmm3
- movdqu 32(%windowbestlen, %rdx), %xmm5
- movdqu 32(%prev, %rdx), %xmm6
- pcmpeqb %xmm6, %xmm5
- movdqu 48(%windowbestlen, %rdx), %xmm7
- movdqu 48(%prev, %rdx), %xmm8
- pcmpeqb %xmm8, %xmm7
-
- /* Check the comparisions' results */
- pmovmskb %xmm1, %rax
- notw %ax
- bsfw %ax, %ax
- jnz LeaveLoopCmps
-
- /* this is the only iteration of the loop with a possibility of having
- incremented rdx by 0x108 (each loop iteration add 16*4 = 0x40
- and (0x40*4)+8=0x108 */
- add $8, %rdx
- jz LenMaximum
- add $8, %rdx
-
-
- pmovmskb %xmm3, %rax
- notw %ax
- bsfw %ax, %ax
- jnz LeaveLoopCmps
-
-
- add $16, %rdx
-
-
- pmovmskb %xmm5, %rax
- notw %ax
- bsfw %ax, %ax
- jnz LeaveLoopCmps
-
- add $16, %rdx
-
-
- pmovmskb %xmm7, %rax
- notw %ax
- bsfw %ax, %ax
- jnz LeaveLoopCmps
-
- add $16, %rdx
-
- jmp LoopCmps
-LeaveLoopCmps: add %rax, %rdx
-#else
- mov (%windowbestlen, %rdx), %rax
- xor (%prev, %rdx), %rax
- jnz LeaveLoopCmps
-
- mov 8(%windowbestlen, %rdx), %rax
- xor 8(%prev, %rdx), %rax
- jnz LeaveLoopCmps8
-
- mov 16(%windowbestlen, %rdx), %rax
- xor 16(%prev, %rdx), %rax
- jnz LeaveLoopCmps16
-
- add $24, %rdx
- jnz LoopCmps
- jmp LenMaximum
-# if 0
-/*
- * This three-liner is tantalizingly simple, but bsf is a slow instruction,
- * and the complicated alternative down below is quite a bit faster. Sad...
- */
-
-LeaveLoopCmps: bsf %rax, %rax /* find the first non-zero bit */
- shrl $3, %eax /* divide by 8 to get the byte */
- add %rax, %rdx
-# else
-LeaveLoopCmps16:
- add $8, %rdx
-LeaveLoopCmps8:
- add $8, %rdx
-LeaveLoopCmps: testl $0xFFFFFFFF, %eax /* Check the first 4 bytes */
- jnz Check16
- add $4, %rdx
- shr $32, %rax
-Check16: testw $0xFFFF, %ax
- jnz LenLower
- add $2, %rdx
- shrl $16, %eax
-LenLower: subb $1, %al
- adc $0, %rdx
-# endif
-#endif
-
-/* Calculate the length of the match. If it is longer than MAX_MATCH, */
-/* then automatically accept it as the best possible match and leave. */
-
- lea (%prev, %rdx), %rax
- sub %scan, %rax
- cmpl $MAX_MATCH, %eax
- jge LenMaximum
-
-/* If the length of the match is not longer than the best match we */
-/* have so far, then forget it and return to the lookup loop. */
-
- cmpl %bestlend, %eax
- jg LongerMatch
- mov _windowbestlen, %windowbestlen
- mov dsPrev, %prev
- movl _chainlenwmask, %edx
- jmp LookupLoop
-
-/* s->match_start = cur_match; */
-/* best_len = len; */
-/* if (len >= nice_match) break; */
-/* scan_end = *(ushf*)(scan+best_len-1); */
-
-LongerMatch:
- movl %eax, %bestlend
- movl %curmatchd, dsMatchStart
- cmpl %nicematch, %eax
- jge LeaveNow
-
- lea (%window, %bestlen), %windowbestlen
- mov %windowbestlen, _windowbestlen
-
- movzwl -1(%scan, %rax), %scanend
- mov dsPrev, %prev
- movl _chainlenwmask, %chainlenwmask
- jmp LookupLoop
-
-/* Accept the current string, with the maximum possible length. */
-
-LenMaximum:
- movl $MAX_MATCH, %bestlend
- movl %curmatchd, dsMatchStart
-
-/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */
-/* return s->lookahead; */
-
-LeaveNow:
- movl dsLookahead, %eax
- cmpl %eax, %bestlend
- cmovngl %bestlend, %eax
-LookaheadRet:
-
-/* Restore the registers and return from whence we came. */
-
- mov save_rsi, %rsi
- mov save_rbx, %rbx
- mov save_r12, %r12
- mov save_r13, %r13
- mov save_r14, %r14
- mov save_r15, %r15
-
- ret
-
-match_init: ret
+++ /dev/null
-This is a patched version of zlib, modified to use
-Pentium-Pro-optimized assembly code in the deflation algorithm. The
-files changed/added by this patch are:
-
-README.686
-match.S
-
-The speedup that this patch provides varies, depending on whether the
-compiler used to build the original version of zlib falls afoul of the
-PPro's speed traps. My own tests show a speedup of around 10-20% at
-the default compression level, and 20-30% using -9, against a version
-compiled using gcc 2.7.2.3. Your mileage may vary.
-
-Note that this code has been tailored for the PPro/PII in particular,
-and will not perform particuarly well on a Pentium.
-
-If you are using an assembler other than GNU as, you will have to
-translate match.S to use your assembler's syntax. (Have fun.)
-
-Brian Raiter
-breadbox@muppetlabs.com
-April, 1998
-
-
-Added for zlib 1.1.3:
-
-The patches come from
-http://www.muppetlabs.com/~breadbox/software/assembly.html
-
-To compile zlib with this asm file, copy match.S to the zlib directory
-then do:
-
-CFLAGS="-O3 -DASMV" ./configure
-make OBJA=match.o
-
-
-Update:
-
-I've been ignoring these assembly routines for years, believing that
-gcc's generated code had caught up with it sometime around gcc 2.95
-and the major rearchitecting of the Pentium 4. However, I recently
-learned that, despite what I believed, this code still has some life
-in it. On the Pentium 4 and AMD64 chips, it continues to run about 8%
-faster than the code produced by gcc 4.1.
-
-In acknowledgement of its continuing usefulness, I've altered the
-license to match that of the rest of zlib. Share and Enjoy!
-
-Brian Raiter
-breadbox@muppetlabs.com
-April, 2007
+++ /dev/null
-/* match.S -- x86 assembly version of the zlib longest_match() function.
- * Optimized for the Intel 686 chips (PPro and later).
- *
- * Copyright (C) 1998, 2007 Brian Raiter <breadbox@muppetlabs.com>
- *
- * This software is provided 'as-is', without any express or implied
- * warranty. In no event will the author be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- * claim that you wrote the original software. If you use this software
- * in a product, an acknowledgment in the product documentation would be
- * appreciated but is not required.
- * 2. Altered source versions must be plainly marked as such, and must not be
- * misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- */
-
-#ifndef NO_UNDERLINE
-#define match_init _match_init
-#define longest_match _longest_match
-#endif
-
-#define MAX_MATCH (258)
-#define MIN_MATCH (3)
-#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1)
-#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7)
-
-/* stack frame offsets */
-
-#define chainlenwmask 0 /* high word: current chain len */
- /* low word: s->wmask */
-#define window 4 /* local copy of s->window */
-#define windowbestlen 8 /* s->window + bestlen */
-#define scanstart 16 /* first two bytes of string */
-#define scanend 12 /* last two bytes of string */
-#define scanalign 20 /* dword-misalignment of string */
-#define nicematch 24 /* a good enough match size */
-#define bestlen 28 /* size of best match so far */
-#define scan 32 /* ptr to string wanting match */
-
-#define LocalVarsSize (36)
-/* saved ebx 36 */
-/* saved edi 40 */
-/* saved esi 44 */
-/* saved ebp 48 */
-/* return address 52 */
-#define deflatestate 56 /* the function arguments */
-#define curmatch 60
-
-/* All the +zlib1222add offsets are due to the addition of fields
- * in zlib in the deflate_state structure since the asm code was first written
- * (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
- * (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
- * if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
- */
-
-#define zlib1222add (8)
-
-#define dsWSize (36+zlib1222add)
-#define dsWMask (44+zlib1222add)
-#define dsWindow (48+zlib1222add)
-#define dsPrev (56+zlib1222add)
-#define dsMatchLen (88+zlib1222add)
-#define dsPrevMatch (92+zlib1222add)
-#define dsStrStart (100+zlib1222add)
-#define dsMatchStart (104+zlib1222add)
-#define dsLookahead (108+zlib1222add)
-#define dsPrevLen (112+zlib1222add)
-#define dsMaxChainLen (116+zlib1222add)
-#define dsGoodMatch (132+zlib1222add)
-#define dsNiceMatch (136+zlib1222add)
-
-
-.file "match.S"
-
-.globl match_init, longest_match
-
-.text
-
-/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
-.cfi_sections .debug_frame
-
-longest_match:
-
-.cfi_startproc
-/* Save registers that the compiler may be using, and adjust %esp to */
-/* make room for our stack frame. */
-
- pushl %ebp
- .cfi_def_cfa_offset 8
- .cfi_offset ebp, -8
- pushl %edi
- .cfi_def_cfa_offset 12
- pushl %esi
- .cfi_def_cfa_offset 16
- pushl %ebx
- .cfi_def_cfa_offset 20
- subl $LocalVarsSize, %esp
- .cfi_def_cfa_offset LocalVarsSize+20
-
-/* Retrieve the function arguments. %ecx will hold cur_match */
-/* throughout the entire function. %edx will hold the pointer to the */
-/* deflate_state structure during the function's setup (before */
-/* entering the main loop). */
-
- movl deflatestate(%esp), %edx
- movl curmatch(%esp), %ecx
-
-/* uInt wmask = s->w_mask; */
-/* unsigned chain_length = s->max_chain_length; */
-/* if (s->prev_length >= s->good_match) { */
-/* chain_length >>= 2; */
-/* } */
-
- movl dsPrevLen(%edx), %eax
- movl dsGoodMatch(%edx), %ebx
- cmpl %ebx, %eax
- movl dsWMask(%edx), %eax
- movl dsMaxChainLen(%edx), %ebx
- jl LastMatchGood
- shrl $2, %ebx
-LastMatchGood:
-
-/* chainlen is decremented once beforehand so that the function can */
-/* use the sign flag instead of the zero flag for the exit test. */
-/* It is then shifted into the high word, to make room for the wmask */
-/* value, which it will always accompany. */
-
- decl %ebx
- shll $16, %ebx
- orl %eax, %ebx
- movl %ebx, chainlenwmask(%esp)
-
-/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */
-
- movl dsNiceMatch(%edx), %eax
- movl dsLookahead(%edx), %ebx
- cmpl %eax, %ebx
- jl LookaheadLess
- movl %eax, %ebx
-LookaheadLess: movl %ebx, nicematch(%esp)
-
-/* register Bytef *scan = s->window + s->strstart; */
-
- movl dsWindow(%edx), %esi
- movl %esi, window(%esp)
- movl dsStrStart(%edx), %ebp
- lea (%esi,%ebp), %edi
- movl %edi, scan(%esp)
-
-/* Determine how many bytes the scan ptr is off from being */
-/* dword-aligned. */
-
- movl %edi, %eax
- negl %eax
- andl $3, %eax
- movl %eax, scanalign(%esp)
-
-/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */
-/* s->strstart - (IPos)MAX_DIST(s) : NIL; */
-
- movl dsWSize(%edx), %eax
- subl $MIN_LOOKAHEAD, %eax
- subl %eax, %ebp
- jg LimitPositive
- xorl %ebp, %ebp
-LimitPositive:
-
-/* int best_len = s->prev_length; */
-
- movl dsPrevLen(%edx), %eax
- movl %eax, bestlen(%esp)
-
-/* Store the sum of s->window + best_len in %esi locally, and in %esi. */
-
- addl %eax, %esi
- movl %esi, windowbestlen(%esp)
-
-/* register ush scan_start = *(ushf*)scan; */
-/* register ush scan_end = *(ushf*)(scan+best_len-1); */
-/* Posf *prev = s->prev; */
-
- movzwl (%edi), %ebx
- movl %ebx, scanstart(%esp)
- movzwl -1(%edi,%eax), %ebx
- movl %ebx, scanend(%esp)
- movl dsPrev(%edx), %edi
-
-/* Jump into the main loop. */
-
- movl chainlenwmask(%esp), %edx
- jmp LoopEntry
-
-.balign 16
-
-/* do {
- * match = s->window + cur_match;
- * if (*(ushf*)(match+best_len-1) != scan_end ||
- * *(ushf*)match != scan_start) continue;
- * [...]
- * } while ((cur_match = prev[cur_match & wmask]) > limit
- * && --chain_length != 0);
- *
- * Here is the inner loop of the function. The function will spend the
- * majority of its time in this loop, and majority of that time will
- * be spent in the first ten instructions.
- *
- * Within this loop:
- * %ebx = scanend
- * %ecx = curmatch
- * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
- * %esi = windowbestlen - i.e., (window + bestlen)
- * %edi = prev
- * %ebp = limit
- */
-LookupLoop:
- andl %edx, %ecx
- movzwl (%edi,%ecx,2), %ecx
- cmpl %ebp, %ecx
- jbe LeaveNow
- subl $0x00010000, %edx
- js LeaveNow
-LoopEntry: movzwl -1(%esi,%ecx), %eax
- cmpl %ebx, %eax
- jnz LookupLoop
- movl window(%esp), %eax
- movzwl (%eax,%ecx), %eax
- cmpl scanstart(%esp), %eax
- jnz LookupLoop
-
-/* Store the current value of chainlen. */
-
- movl %edx, chainlenwmask(%esp)
-
-/* Point %edi to the string under scrutiny, and %esi to the string we */
-/* are hoping to match it up with. In actuality, %esi and %edi are */
-/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */
-/* initialized to -(MAX_MATCH_8 - scanalign). */
-
- movl window(%esp), %esi
- movl scan(%esp), %edi
- addl %ecx, %esi
- movl scanalign(%esp), %eax
- movl $(-MAX_MATCH_8), %edx
- lea MAX_MATCH_8(%edi,%eax), %edi
- lea MAX_MATCH_8(%esi,%eax), %esi
-
-/* Test the strings for equality, 8 bytes at a time. At the end,
- * adjust %edx so that it is offset to the exact byte that mismatched.
- *
- * We already know at this point that the first three bytes of the
- * strings match each other, and they can be safely passed over before
- * starting the compare loop. So what this code does is skip over 0-3
- * bytes, as much as necessary in order to dword-align the %edi
- * pointer. (%esi will still be misaligned three times out of four.)
- *
- * It should be confessed that this loop usually does not represent
- * much of the total running time. Replacing it with a more
- * straightforward "rep cmpsb" would not drastically degrade
- * performance.
- */
-LoopCmps:
- movl (%esi,%edx), %eax
- xorl (%edi,%edx), %eax
- jnz LeaveLoopCmps
- movl 4(%esi,%edx), %eax
- xorl 4(%edi,%edx), %eax
- jnz LeaveLoopCmps4
- addl $8, %edx
- jnz LoopCmps
- jmp LenMaximum
-LeaveLoopCmps4: addl $4, %edx
-LeaveLoopCmps: testl $0x0000FFFF, %eax
- jnz LenLower
- addl $2, %edx
- shrl $16, %eax
-LenLower: subb $1, %al
- adcl $0, %edx
-
-/* Calculate the length of the match. If it is longer than MAX_MATCH, */
-/* then automatically accept it as the best possible match and leave. */
-
- lea (%edi,%edx), %eax
- movl scan(%esp), %edi
- subl %edi, %eax
- cmpl $MAX_MATCH, %eax
- jge LenMaximum
-
-/* If the length of the match is not longer than the best match we */
-/* have so far, then forget it and return to the lookup loop. */
-
- movl deflatestate(%esp), %edx
- movl bestlen(%esp), %ebx
- cmpl %ebx, %eax
- jg LongerMatch
- movl windowbestlen(%esp), %esi
- movl dsPrev(%edx), %edi
- movl scanend(%esp), %ebx
- movl chainlenwmask(%esp), %edx
- jmp LookupLoop
-
-/* s->match_start = cur_match; */
-/* best_len = len; */
-/* if (len >= nice_match) break; */
-/* scan_end = *(ushf*)(scan+best_len-1); */
-
-LongerMatch: movl nicematch(%esp), %ebx
- movl %eax, bestlen(%esp)
- movl %ecx, dsMatchStart(%edx)
- cmpl %ebx, %eax
- jge LeaveNow
- movl window(%esp), %esi
- addl %eax, %esi
- movl %esi, windowbestlen(%esp)
- movzwl -1(%edi,%eax), %ebx
- movl dsPrev(%edx), %edi
- movl %ebx, scanend(%esp)
- movl chainlenwmask(%esp), %edx
- jmp LookupLoop
-
-/* Accept the current string, with the maximum possible length. */
-
-LenMaximum: movl deflatestate(%esp), %edx
- movl $MAX_MATCH, bestlen(%esp)
- movl %ecx, dsMatchStart(%edx)
-
-/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */
-/* return s->lookahead; */
-
-LeaveNow:
- movl deflatestate(%esp), %edx
- movl bestlen(%esp), %ebx
- movl dsLookahead(%edx), %eax
- cmpl %eax, %ebx
- jg LookaheadRet
- movl %ebx, %eax
-LookaheadRet:
-
-/* Restore the stack and return from whence we came. */
-
- addl $LocalVarsSize, %esp
- .cfi_def_cfa_offset 20
- popl %ebx
- .cfi_def_cfa_offset 16
- popl %esi
- .cfi_def_cfa_offset 12
- popl %edi
- .cfi_def_cfa_offset 8
- popl %ebp
- .cfi_def_cfa_offset 4
-.cfi_endproc
-match_init: ret
+++ /dev/null
-blast: blast.c blast.h
- cc -DTEST -o blast blast.c
-
-test: blast
- blast < test.pk | cmp - test.txt
-
-clean:
- rm -f blast blast.o
+++ /dev/null
-Read blast.h for purpose and usage.
-
-Mark Adler
-madler@alumni.caltech.edu
+++ /dev/null
-/* blast.c
- * Copyright (C) 2003, 2012 Mark Adler
- * For conditions of distribution and use, see copyright notice in blast.h
- * version 1.2, 24 Oct 2012
- *
- * blast.c decompresses data compressed by the PKWare Compression Library.
- * This function provides functionality similar to the explode() function of
- * the PKWare library, hence the name "blast".
- *
- * This decompressor is based on the excellent format description provided by
- * Ben Rudiak-Gould in comp.compression on August 13, 2001. Interestingly, the
- * example Ben provided in the post is incorrect. The distance 110001 should
- * instead be 111000. When corrected, the example byte stream becomes:
- *
- * 00 04 82 24 25 8f 80 7f
- *
- * which decompresses to "AIAIAIAIAIAIA" (without the quotes).
- */
-
-/*
- * Change history:
- *
- * 1.0 12 Feb 2003 - First version
- * 1.1 16 Feb 2003 - Fixed distance check for > 4 GB uncompressed data
- * 1.2 24 Oct 2012 - Add note about using binary mode in stdio
- * - Fix comparisons of differently signed integers
- */
-
-#include <setjmp.h> /* for setjmp(), longjmp(), and jmp_buf */
-#include "blast.h" /* prototype for blast() */
-
-#define local static /* for local function definitions */
-#define MAXBITS 13 /* maximum code length */
-#define MAXWIN 4096 /* maximum window size */
-
-/* input and output state */
-struct state {
- /* input state */
- blast_in infun; /* input function provided by user */
- void *inhow; /* opaque information passed to infun() */
- unsigned char *in; /* next input location */
- unsigned left; /* available input at in */
- int bitbuf; /* bit buffer */
- int bitcnt; /* number of bits in bit buffer */
-
- /* input limit error return state for bits() and decode() */
- jmp_buf env;
-
- /* output state */
- blast_out outfun; /* output function provided by user */
- void *outhow; /* opaque information passed to outfun() */
- unsigned next; /* index of next write location in out[] */
- int first; /* true to check distances (for first 4K) */
- unsigned char out[MAXWIN]; /* output buffer and sliding window */
-};
-
-/*
- * Return need bits from the input stream. This always leaves less than
- * eight bits in the buffer. bits() works properly for need == 0.
- *
- * Format notes:
- *
- * - Bits are stored in bytes from the least significant bit to the most
- * significant bit. Therefore bits are dropped from the bottom of the bit
- * buffer, using shift right, and new bytes are appended to the top of the
- * bit buffer, using shift left.
- */
-local int bits(struct state *s, int need)
-{
- int val; /* bit accumulator */
-
- /* load at least need bits into val */
- val = s->bitbuf;
- while (s->bitcnt < need) {
- if (s->left == 0) {
- s->left = s->infun(s->inhow, &(s->in));
- if (s->left == 0) longjmp(s->env, 1); /* out of input */
- }
- val |= (int)(*(s->in)++) << s->bitcnt; /* load eight bits */
- s->left--;
- s->bitcnt += 8;
- }
-
- /* drop need bits and update buffer, always zero to seven bits left */
- s->bitbuf = val >> need;
- s->bitcnt -= need;
-
- /* return need bits, zeroing the bits above that */
- return val & ((1 << need) - 1);
-}
-
-/*
- * Huffman code decoding tables. count[1..MAXBITS] is the number of symbols of
- * each length, which for a canonical code are stepped through in order.
- * symbol[] are the symbol values in canonical order, where the number of
- * entries is the sum of the counts in count[]. The decoding process can be
- * seen in the function decode() below.
- */
-struct huffman {
- short *count; /* number of symbols of each length */
- short *symbol; /* canonically ordered symbols */
-};
-
-/*
- * Decode a code from the stream s using huffman table h. Return the symbol or
- * a negative value if there is an error. If all of the lengths are zero, i.e.
- * an empty code, or if the code is incomplete and an invalid code is received,
- * then -9 is returned after reading MAXBITS bits.
- *
- * Format notes:
- *
- * - The codes as stored in the compressed data are bit-reversed relative to
- * a simple integer ordering of codes of the same lengths. Hence below the
- * bits are pulled from the compressed data one at a time and used to
- * build the code value reversed from what is in the stream in order to
- * permit simple integer comparisons for decoding.
- *
- * - The first code for the shortest length is all ones. Subsequent codes of
- * the same length are simply integer decrements of the previous code. When
- * moving up a length, a one bit is appended to the code. For a complete
- * code, the last code of the longest length will be all zeros. To support
- * this ordering, the bits pulled during decoding are inverted to apply the
- * more "natural" ordering starting with all zeros and incrementing.
- */
-local int decode(struct state *s, struct huffman *h)
-{
- int len; /* current number of bits in code */
- int code; /* len bits being decoded */
- int first; /* first code of length len */
- int count; /* number of codes of length len */
- int index; /* index of first code of length len in symbol table */
- int bitbuf; /* bits from stream */
- int left; /* bits left in next or left to process */
- short *next; /* next number of codes */
-
- bitbuf = s->bitbuf;
- left = s->bitcnt;
- code = first = index = 0;
- len = 1;
- next = h->count + 1;
- while (1) {
- while (left--) {
- code |= (bitbuf & 1) ^ 1; /* invert code */
- bitbuf >>= 1;
- count = *next++;
- if (code < first + count) { /* if length len, return symbol */
- s->bitbuf = bitbuf;
- s->bitcnt = (s->bitcnt - len) & 7;
- return h->symbol[index + (code - first)];
- }
- index += count; /* else update for next length */
- first += count;
- first <<= 1;
- code <<= 1;
- len++;
- }
- left = (MAXBITS+1) - len;
- if (left == 0) break;
- if (s->left == 0) {
- s->left = s->infun(s->inhow, &(s->in));
- if (s->left == 0) longjmp(s->env, 1); /* out of input */
- }
- bitbuf = *(s->in)++;
- s->left--;
- if (left > 8) left = 8;
- }
- return -9; /* ran out of codes */
-}
-
-/*
- * Given a list of repeated code lengths rep[0..n-1], where each byte is a
- * count (high four bits + 1) and a code length (low four bits), generate the
- * list of code lengths. This compaction reduces the size of the object code.
- * Then given the list of code lengths length[0..n-1] representing a canonical
- * Huffman code for n symbols, construct the tables required to decode those
- * codes. Those tables are the number of codes of each length, and the symbols
- * sorted by length, retaining their original order within each length. The
- * return value is zero for a complete code set, negative for an over-
- * subscribed code set, and positive for an incomplete code set. The tables
- * can be used if the return value is zero or positive, but they cannot be used
- * if the return value is negative. If the return value is zero, it is not
- * possible for decode() using that table to return an error--any stream of
- * enough bits will resolve to a symbol. If the return value is positive, then
- * it is possible for decode() using that table to return an error for received
- * codes past the end of the incomplete lengths.
- */
-local int construct(struct huffman *h, const unsigned char *rep, int n)
-{
- int symbol; /* current symbol when stepping through length[] */
- int len; /* current length when stepping through h->count[] */
- int left; /* number of possible codes left of current length */
- short offs[MAXBITS+1]; /* offsets in symbol table for each length */
- short length[256]; /* code lengths */
-
- /* convert compact repeat counts into symbol bit length list */
- symbol = 0;
- do {
- len = *rep++;
- left = (len >> 4) + 1;
- len &= 15;
- do {
- length[symbol++] = len;
- } while (--left);
- } while (--n);
- n = symbol;
-
- /* count number of codes of each length */
- for (len = 0; len <= MAXBITS; len++)
- h->count[len] = 0;
- for (symbol = 0; symbol < n; symbol++)
- (h->count[length[symbol]])++; /* assumes lengths are within bounds */
- if (h->count[0] == n) /* no codes! */
- return 0; /* complete, but decode() will fail */
-
- /* check for an over-subscribed or incomplete set of lengths */
- left = 1; /* one possible code of zero length */
- for (len = 1; len <= MAXBITS; len++) {
- left <<= 1; /* one more bit, double codes left */
- left -= h->count[len]; /* deduct count from possible codes */
- if (left < 0) return left; /* over-subscribed--return negative */
- } /* left > 0 means incomplete */
-
- /* generate offsets into symbol table for each length for sorting */
- offs[1] = 0;
- for (len = 1; len < MAXBITS; len++)
- offs[len + 1] = offs[len] + h->count[len];
-
- /*
- * put symbols in table sorted by length, by symbol order within each
- * length
- */
- for (symbol = 0; symbol < n; symbol++)
- if (length[symbol] != 0)
- h->symbol[offs[length[symbol]]++] = symbol;
-
- /* return zero for complete set, positive for incomplete set */
- return left;
-}
-
-/*
- * Decode PKWare Compression Library stream.
- *
- * Format notes:
- *
- * - First byte is 0 if literals are uncoded or 1 if they are coded. Second
- * byte is 4, 5, or 6 for the number of extra bits in the distance code.
- * This is the base-2 logarithm of the dictionary size minus six.
- *
- * - Compressed data is a combination of literals and length/distance pairs
- * terminated by an end code. Literals are either Huffman coded or
- * uncoded bytes. A length/distance pair is a coded length followed by a
- * coded distance to represent a string that occurs earlier in the
- * uncompressed data that occurs again at the current location.
- *
- * - A bit preceding a literal or length/distance pair indicates which comes
- * next, 0 for literals, 1 for length/distance.
- *
- * - If literals are uncoded, then the next eight bits are the literal, in the
- * normal bit order in th stream, i.e. no bit-reversal is needed. Similarly,
- * no bit reversal is needed for either the length extra bits or the distance
- * extra bits.
- *
- * - Literal bytes are simply written to the output. A length/distance pair is
- * an instruction to copy previously uncompressed bytes to the output. The
- * copy is from distance bytes back in the output stream, copying for length
- * bytes.
- *
- * - Distances pointing before the beginning of the output data are not
- * permitted.
- *
- * - Overlapped copies, where the length is greater than the distance, are
- * allowed and common. For example, a distance of one and a length of 518
- * simply copies the last byte 518 times. A distance of four and a length of
- * twelve copies the last four bytes three times. A simple forward copy
- * ignoring whether the length is greater than the distance or not implements
- * this correctly.
- */
-local int decomp(struct state *s)
-{
- int lit; /* true if literals are coded */
- int dict; /* log2(dictionary size) - 6 */
- int symbol; /* decoded symbol, extra bits for distance */
- int len; /* length for copy */
- unsigned dist; /* distance for copy */
- int copy; /* copy counter */
- unsigned char *from, *to; /* copy pointers */
- static int virgin = 1; /* build tables once */
- static short litcnt[MAXBITS+1], litsym[256]; /* litcode memory */
- static short lencnt[MAXBITS+1], lensym[16]; /* lencode memory */
- static short distcnt[MAXBITS+1], distsym[64]; /* distcode memory */
- static struct huffman litcode = {litcnt, litsym}; /* length code */
- static struct huffman lencode = {lencnt, lensym}; /* length code */
- static struct huffman distcode = {distcnt, distsym};/* distance code */
- /* bit lengths of literal codes */
- static const unsigned char litlen[] = {
- 11, 124, 8, 7, 28, 7, 188, 13, 76, 4, 10, 8, 12, 10, 12, 10, 8, 23, 8,
- 9, 7, 6, 7, 8, 7, 6, 55, 8, 23, 24, 12, 11, 7, 9, 11, 12, 6, 7, 22, 5,
- 7, 24, 6, 11, 9, 6, 7, 22, 7, 11, 38, 7, 9, 8, 25, 11, 8, 11, 9, 12,
- 8, 12, 5, 38, 5, 38, 5, 11, 7, 5, 6, 21, 6, 10, 53, 8, 7, 24, 10, 27,
- 44, 253, 253, 253, 252, 252, 252, 13, 12, 45, 12, 45, 12, 61, 12, 45,
- 44, 173};
- /* bit lengths of length codes 0..15 */
- static const unsigned char lenlen[] = {2, 35, 36, 53, 38, 23};
- /* bit lengths of distance codes 0..63 */
- static const unsigned char distlen[] = {2, 20, 53, 230, 247, 151, 248};
- static const short base[16] = { /* base for length codes */
- 3, 2, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 40, 72, 136, 264};
- static const char extra[16] = { /* extra bits for length codes */
- 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8};
-
- /* set up decoding tables (once--might not be thread-safe) */
- if (virgin) {
- construct(&litcode, litlen, sizeof(litlen));
- construct(&lencode, lenlen, sizeof(lenlen));
- construct(&distcode, distlen, sizeof(distlen));
- virgin = 0;
- }
-
- /* read header */
- lit = bits(s, 8);
- if (lit > 1) return -1;
- dict = bits(s, 8);
- if (dict < 4 || dict > 6) return -2;
-
- /* decode literals and length/distance pairs */
- do {
- if (bits(s, 1)) {
- /* get length */
- symbol = decode(s, &lencode);
- len = base[symbol] + bits(s, extra[symbol]);
- if (len == 519) break; /* end code */
-
- /* get distance */
- symbol = len == 2 ? 2 : dict;
- dist = decode(s, &distcode) << symbol;
- dist += bits(s, symbol);
- dist++;
- if (s->first && dist > s->next)
- return -3; /* distance too far back */
-
- /* copy length bytes from distance bytes back */
- do {
- to = s->out + s->next;
- from = to - dist;
- copy = MAXWIN;
- if (s->next < dist) {
- from += copy;
- copy = dist;
- }
- copy -= s->next;
- if (copy > len) copy = len;
- len -= copy;
- s->next += copy;
- do {
- *to++ = *from++;
- } while (--copy);
- if (s->next == MAXWIN) {
- if (s->outfun(s->outhow, s->out, s->next)) return 1;
- s->next = 0;
- s->first = 0;
- }
- } while (len != 0);
- }
- else {
- /* get literal and write it */
- symbol = lit ? decode(s, &litcode) : bits(s, 8);
- s->out[s->next++] = symbol;
- if (s->next == MAXWIN) {
- if (s->outfun(s->outhow, s->out, s->next)) return 1;
- s->next = 0;
- s->first = 0;
- }
- }
- } while (1);
- return 0;
-}
-
-/* See comments in blast.h */
-int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow)
-{
- struct state s; /* input/output state */
- int err; /* return value */
-
- /* initialize input state */
- s.infun = infun;
- s.inhow = inhow;
- s.left = 0;
- s.bitbuf = 0;
- s.bitcnt = 0;
-
- /* initialize output state */
- s.outfun = outfun;
- s.outhow = outhow;
- s.next = 0;
- s.first = 1;
-
- /* return if bits() or decode() tries to read past available input */
- if (setjmp(s.env) != 0) /* if came back here via longjmp(), */
- err = 2; /* then skip decomp(), return error */
- else
- err = decomp(&s); /* decompress */
-
- /* write any leftover output and update the error code if needed */
- if (err != 1 && s.next && s.outfun(s.outhow, s.out, s.next) && err == 0)
- err = 1;
- return err;
-}
-
-#ifdef TEST
-/* Example of how to use blast() */
-#include <stdio.h>
-#include <stdlib.h>
-
-#define CHUNK 16384
-
-local unsigned inf(void *how, unsigned char **buf)
-{
- static unsigned char hold[CHUNK];
-
- *buf = hold;
- return fread(hold, 1, CHUNK, (FILE *)how);
-}
-
-local int outf(void *how, unsigned char *buf, unsigned len)
-{
- return fwrite(buf, 1, len, (FILE *)how) != len;
-}
-
-/* Decompress a PKWare Compression Library stream from stdin to stdout */
-int main(void)
-{
- int ret, n;
-
- /* decompress to stdout */
- ret = blast(inf, stdin, outf, stdout);
- if (ret != 0) fprintf(stderr, "blast error: %d\n", ret);
-
- /* see if there are any leftover bytes */
- n = 0;
- while (getchar() != EOF) n++;
- if (n) fprintf(stderr, "blast warning: %d unused bytes of input\n", n);
-
- /* return blast() error code */
- return ret;
-}
-#endif
+++ /dev/null
-/* blast.h -- interface for blast.c
- Copyright (C) 2003, 2012 Mark Adler
- version 1.2, 24 Oct 2012
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the author be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- Mark Adler madler@alumni.caltech.edu
- */
-
-
-/*
- * blast() decompresses the PKWare Data Compression Library (DCL) compressed
- * format. It provides the same functionality as the explode() function in
- * that library. (Note: PKWare overused the "implode" verb, and the format
- * used by their library implode() function is completely different and
- * incompatible with the implode compression method supported by PKZIP.)
- *
- * The binary mode for stdio functions should be used to assure that the
- * compressed data is not corrupted when read or written. For example:
- * fopen(..., "rb") and fopen(..., "wb").
- */
-
-
-typedef unsigned (*blast_in)(void *how, unsigned char **buf);
-typedef int (*blast_out)(void *how, unsigned char *buf, unsigned len);
-/* Definitions for input/output functions passed to blast(). See below for
- * what the provided functions need to do.
- */
-
-
-int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow);
-/* Decompress input to output using the provided infun() and outfun() calls.
- * On success, the return value of blast() is zero. If there is an error in
- * the source data, i.e. it is not in the proper format, then a negative value
- * is returned. If there is not enough input available or there is not enough
- * output space, then a positive error is returned.
- *
- * The input function is invoked: len = infun(how, &buf), where buf is set by
- * infun() to point to the input buffer, and infun() returns the number of
- * available bytes there. If infun() returns zero, then blast() returns with
- * an input error. (blast() only asks for input if it needs it.) inhow is for
- * use by the application to pass an input descriptor to infun(), if desired.
- *
- * The output function is invoked: err = outfun(how, buf, len), where the bytes
- * to be written are buf[0..len-1]. If err is not zero, then blast() returns
- * with an output error. outfun() is always called with len <= 4096. outhow
- * is for use by the application to pass an output descriptor to outfun(), if
- * desired.
- *
- * The return codes are:
- *
- * 2: ran out of input before completing decompression
- * 1: output error before completing decompression
- * 0: successful decompression
- * -1: literal flag not zero or one
- * -2: dictionary size not in 4..6
- * -3: distance is too far back
- *
- * At the bottom of blast.c is an example program that uses blast() that can be
- * compiled to produce a command-line decompression filter by defining TEST.
- */
+++ /dev/null
-AIAIAIAIAIAIA
\ No newline at end of file
+++ /dev/null
-{*******************************************************}
-{ }
-{ Borland Delphi Supplemental Components }
-{ ZLIB Data Compression Interface Unit }
-{ }
-{ Copyright (c) 1997,99 Borland Corporation }
-{ }
-{*******************************************************}
-
-{ Updated for zlib 1.2.x by Cosmin Truta <cosmint@cs.ubbcluj.ro> }
-
-unit ZLib;
-
-interface
-
-uses SysUtils, Classes;
-
-type
- TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
- TFree = procedure (AppData, Block: Pointer); cdecl;
-
- // Internal structure. Ignore.
- TZStreamRec = packed record
- next_in: PChar; // next input byte
- avail_in: Integer; // number of bytes available at next_in
- total_in: Longint; // total nb of input bytes read so far
-
- next_out: PChar; // next output byte should be put here
- avail_out: Integer; // remaining free space at next_out
- total_out: Longint; // total nb of bytes output so far
-
- msg: PChar; // last error message, NULL if no error
- internal: Pointer; // not visible by applications
-
- zalloc: TAlloc; // used to allocate the internal state
- zfree: TFree; // used to free the internal state
- AppData: Pointer; // private data object passed to zalloc and zfree
-
- data_type: Integer; // best guess about the data type: ascii or binary
- adler: Longint; // adler32 value of the uncompressed data
- reserved: Longint; // reserved for future use
- end;
-
- // Abstract ancestor class
- TCustomZlibStream = class(TStream)
- private
- FStrm: TStream;
- FStrmPos: Integer;
- FOnProgress: TNotifyEvent;
- FZRec: TZStreamRec;
- FBuffer: array [Word] of Char;
- protected
- procedure Progress(Sender: TObject); dynamic;
- property OnProgress: TNotifyEvent read FOnProgress write FOnProgress;
- constructor Create(Strm: TStream);
- end;
-
-{ TCompressionStream compresses data on the fly as data is written to it, and
- stores the compressed data to another stream.
-
- TCompressionStream is write-only and strictly sequential. Reading from the
- stream will raise an exception. Using Seek to move the stream pointer
- will raise an exception.
-
- Output data is cached internally, written to the output stream only when
- the internal output buffer is full. All pending output data is flushed
- when the stream is destroyed.
-
- The Position property returns the number of uncompressed bytes of
- data that have been written to the stream so far.
-
- CompressionRate returns the on-the-fly percentage by which the original
- data has been compressed: (1 - (CompressedBytes / UncompressedBytes)) * 100
- If raw data size = 100 and compressed data size = 25, the CompressionRate
- is 75%
-
- The OnProgress event is called each time the output buffer is filled and
- written to the output stream. This is useful for updating a progress
- indicator when you are writing a large chunk of data to the compression
- stream in a single call.}
-
-
- TCompressionLevel = (clNone, clFastest, clDefault, clMax);
-
- TCompressionStream = class(TCustomZlibStream)
- private
- function GetCompressionRate: Single;
- public
- constructor Create(CompressionLevel: TCompressionLevel; Dest: TStream);
- destructor Destroy; override;
- function Read(var Buffer; Count: Longint): Longint; override;
- function Write(const Buffer; Count: Longint): Longint; override;
- function Seek(Offset: Longint; Origin: Word): Longint; override;
- property CompressionRate: Single read GetCompressionRate;
- property OnProgress;
- end;
-
-{ TDecompressionStream decompresses data on the fly as data is read from it.
-
- Compressed data comes from a separate source stream. TDecompressionStream
- is read-only and unidirectional; you can seek forward in the stream, but not
- backwards. The special case of setting the stream position to zero is
- allowed. Seeking forward decompresses data until the requested position in
- the uncompressed data has been reached. Seeking backwards, seeking relative
- to the end of the stream, requesting the size of the stream, and writing to
- the stream will raise an exception.
-
- The Position property returns the number of bytes of uncompressed data that
- have been read from the stream so far.
-
- The OnProgress event is called each time the internal input buffer of
- compressed data is exhausted and the next block is read from the input stream.
- This is useful for updating a progress indicator when you are reading a
- large chunk of data from the decompression stream in a single call.}
-
- TDecompressionStream = class(TCustomZlibStream)
- public
- constructor Create(Source: TStream);
- destructor Destroy; override;
- function Read(var Buffer; Count: Longint): Longint; override;
- function Write(const Buffer; Count: Longint): Longint; override;
- function Seek(Offset: Longint; Origin: Word): Longint; override;
- property OnProgress;
- end;
-
-
-
-{ CompressBuf compresses data, buffer to buffer, in one call.
- In: InBuf = ptr to compressed data
- InBytes = number of bytes in InBuf
- Out: OutBuf = ptr to newly allocated buffer containing decompressed data
- OutBytes = number of bytes in OutBuf }
-procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
- out OutBuf: Pointer; out OutBytes: Integer);
-
-
-{ DecompressBuf decompresses data, buffer to buffer, in one call.
- In: InBuf = ptr to compressed data
- InBytes = number of bytes in InBuf
- OutEstimate = zero, or est. size of the decompressed data
- Out: OutBuf = ptr to newly allocated buffer containing decompressed data
- OutBytes = number of bytes in OutBuf }
-procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
- OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
-
-{ DecompressToUserBuf decompresses data, buffer to buffer, in one call.
- In: InBuf = ptr to compressed data
- InBytes = number of bytes in InBuf
- Out: OutBuf = ptr to user-allocated buffer to contain decompressed data
- BufSize = number of bytes in OutBuf }
-procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
- const OutBuf: Pointer; BufSize: Integer);
-
-const
- zlib_version = '1.2.8';
-
-type
- EZlibError = class(Exception);
- ECompressionError = class(EZlibError);
- EDecompressionError = class(EZlibError);
-
-implementation
-
-uses ZLibConst;
-
-const
- Z_NO_FLUSH = 0;
- Z_PARTIAL_FLUSH = 1;
- Z_SYNC_FLUSH = 2;
- Z_FULL_FLUSH = 3;
- Z_FINISH = 4;
-
- Z_OK = 0;
- Z_STREAM_END = 1;
- Z_NEED_DICT = 2;
- Z_ERRNO = (-1);
- Z_STREAM_ERROR = (-2);
- Z_DATA_ERROR = (-3);
- Z_MEM_ERROR = (-4);
- Z_BUF_ERROR = (-5);
- Z_VERSION_ERROR = (-6);
-
- Z_NO_COMPRESSION = 0;
- Z_BEST_SPEED = 1;
- Z_BEST_COMPRESSION = 9;
- Z_DEFAULT_COMPRESSION = (-1);
-
- Z_FILTERED = 1;
- Z_HUFFMAN_ONLY = 2;
- Z_RLE = 3;
- Z_DEFAULT_STRATEGY = 0;
-
- Z_BINARY = 0;
- Z_ASCII = 1;
- Z_UNKNOWN = 2;
-
- Z_DEFLATED = 8;
-
-
-{$L adler32.obj}
-{$L compress.obj}
-{$L crc32.obj}
-{$L deflate.obj}
-{$L infback.obj}
-{$L inffast.obj}
-{$L inflate.obj}
-{$L inftrees.obj}
-{$L trees.obj}
-{$L uncompr.obj}
-{$L zutil.obj}
-
-procedure adler32; external;
-procedure compressBound; external;
-procedure crc32; external;
-procedure deflateInit2_; external;
-procedure deflateParams; external;
-
-function _malloc(Size: Integer): Pointer; cdecl;
-begin
- Result := AllocMem(Size);
-end;
-
-procedure _free(Block: Pointer); cdecl;
-begin
- FreeMem(Block);
-end;
-
-procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
-begin
- FillChar(P^, count, B);
-end;
-
-procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
-begin
- Move(source^, dest^, count);
-end;
-
-
-
-// deflate compresses data
-function deflateInit_(var strm: TZStreamRec; level: Integer; version: PChar;
- recsize: Integer): Integer; external;
-function deflate(var strm: TZStreamRec; flush: Integer): Integer; external;
-function deflateEnd(var strm: TZStreamRec): Integer; external;
-
-// inflate decompresses data
-function inflateInit_(var strm: TZStreamRec; version: PChar;
- recsize: Integer): Integer; external;
-function inflate(var strm: TZStreamRec; flush: Integer): Integer; external;
-function inflateEnd(var strm: TZStreamRec): Integer; external;
-function inflateReset(var strm: TZStreamRec): Integer; external;
-
-
-function zlibAllocMem(AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
-begin
-// GetMem(Result, Items*Size);
- Result := AllocMem(Items * Size);
-end;
-
-procedure zlibFreeMem(AppData, Block: Pointer); cdecl;
-begin
- FreeMem(Block);
-end;
-
-{function zlibCheck(code: Integer): Integer;
-begin
- Result := code;
- if code < 0 then
- raise EZlibError.Create('error'); //!!
-end;}
-
-function CCheck(code: Integer): Integer;
-begin
- Result := code;
- if code < 0 then
- raise ECompressionError.Create('error'); //!!
-end;
-
-function DCheck(code: Integer): Integer;
-begin
- Result := code;
- if code < 0 then
- raise EDecompressionError.Create('error'); //!!
-end;
-
-procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
- out OutBuf: Pointer; out OutBytes: Integer);
-var
- strm: TZStreamRec;
- P: Pointer;
-begin
- FillChar(strm, sizeof(strm), 0);
- strm.zalloc := zlibAllocMem;
- strm.zfree := zlibFreeMem;
- OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255;
- GetMem(OutBuf, OutBytes);
- try
- strm.next_in := InBuf;
- strm.avail_in := InBytes;
- strm.next_out := OutBuf;
- strm.avail_out := OutBytes;
- CCheck(deflateInit_(strm, Z_BEST_COMPRESSION, zlib_version, sizeof(strm)));
- try
- while CCheck(deflate(strm, Z_FINISH)) <> Z_STREAM_END do
- begin
- P := OutBuf;
- Inc(OutBytes, 256);
- ReallocMem(OutBuf, OutBytes);
- strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
- strm.avail_out := 256;
- end;
- finally
- CCheck(deflateEnd(strm));
- end;
- ReallocMem(OutBuf, strm.total_out);
- OutBytes := strm.total_out;
- except
- FreeMem(OutBuf);
- raise
- end;
-end;
-
-
-procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
- OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
-var
- strm: TZStreamRec;
- P: Pointer;
- BufInc: Integer;
-begin
- FillChar(strm, sizeof(strm), 0);
- strm.zalloc := zlibAllocMem;
- strm.zfree := zlibFreeMem;
- BufInc := (InBytes + 255) and not 255;
- if OutEstimate = 0 then
- OutBytes := BufInc
- else
- OutBytes := OutEstimate;
- GetMem(OutBuf, OutBytes);
- try
- strm.next_in := InBuf;
- strm.avail_in := InBytes;
- strm.next_out := OutBuf;
- strm.avail_out := OutBytes;
- DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
- try
- while DCheck(inflate(strm, Z_NO_FLUSH)) <> Z_STREAM_END do
- begin
- P := OutBuf;
- Inc(OutBytes, BufInc);
- ReallocMem(OutBuf, OutBytes);
- strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
- strm.avail_out := BufInc;
- end;
- finally
- DCheck(inflateEnd(strm));
- end;
- ReallocMem(OutBuf, strm.total_out);
- OutBytes := strm.total_out;
- except
- FreeMem(OutBuf);
- raise
- end;
-end;
-
-procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
- const OutBuf: Pointer; BufSize: Integer);
-var
- strm: TZStreamRec;
-begin
- FillChar(strm, sizeof(strm), 0);
- strm.zalloc := zlibAllocMem;
- strm.zfree := zlibFreeMem;
- strm.next_in := InBuf;
- strm.avail_in := InBytes;
- strm.next_out := OutBuf;
- strm.avail_out := BufSize;
- DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
- try
- if DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END then
- raise EZlibError.CreateRes(@sTargetBufferTooSmall);
- finally
- DCheck(inflateEnd(strm));
- end;
-end;
-
-// TCustomZlibStream
-
-constructor TCustomZLibStream.Create(Strm: TStream);
-begin
- inherited Create;
- FStrm := Strm;
- FStrmPos := Strm.Position;
- FZRec.zalloc := zlibAllocMem;
- FZRec.zfree := zlibFreeMem;
-end;
-
-procedure TCustomZLibStream.Progress(Sender: TObject);
-begin
- if Assigned(FOnProgress) then FOnProgress(Sender);
-end;
-
-
-// TCompressionStream
-
-constructor TCompressionStream.Create(CompressionLevel: TCompressionLevel;
- Dest: TStream);
-const
- Levels: array [TCompressionLevel] of ShortInt =
- (Z_NO_COMPRESSION, Z_BEST_SPEED, Z_DEFAULT_COMPRESSION, Z_BEST_COMPRESSION);
-begin
- inherited Create(Dest);
- FZRec.next_out := FBuffer;
- FZRec.avail_out := sizeof(FBuffer);
- CCheck(deflateInit_(FZRec, Levels[CompressionLevel], zlib_version, sizeof(FZRec)));
-end;
-
-destructor TCompressionStream.Destroy;
-begin
- FZRec.next_in := nil;
- FZRec.avail_in := 0;
- try
- if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
- while (CCheck(deflate(FZRec, Z_FINISH)) <> Z_STREAM_END)
- and (FZRec.avail_out = 0) do
- begin
- FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
- FZRec.next_out := FBuffer;
- FZRec.avail_out := sizeof(FBuffer);
- end;
- if FZRec.avail_out < sizeof(FBuffer) then
- FStrm.WriteBuffer(FBuffer, sizeof(FBuffer) - FZRec.avail_out);
- finally
- deflateEnd(FZRec);
- end;
- inherited Destroy;
-end;
-
-function TCompressionStream.Read(var Buffer; Count: Longint): Longint;
-begin
- raise ECompressionError.CreateRes(@sInvalidStreamOp);
-end;
-
-function TCompressionStream.Write(const Buffer; Count: Longint): Longint;
-begin
- FZRec.next_in := @Buffer;
- FZRec.avail_in := Count;
- if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
- while (FZRec.avail_in > 0) do
- begin
- CCheck(deflate(FZRec, 0));
- if FZRec.avail_out = 0 then
- begin
- FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
- FZRec.next_out := FBuffer;
- FZRec.avail_out := sizeof(FBuffer);
- FStrmPos := FStrm.Position;
- Progress(Self);
- end;
- end;
- Result := Count;
-end;
-
-function TCompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
-begin
- if (Offset = 0) and (Origin = soFromCurrent) then
- Result := FZRec.total_in
- else
- raise ECompressionError.CreateRes(@sInvalidStreamOp);
-end;
-
-function TCompressionStream.GetCompressionRate: Single;
-begin
- if FZRec.total_in = 0 then
- Result := 0
- else
- Result := (1.0 - (FZRec.total_out / FZRec.total_in)) * 100.0;
-end;
-
-
-// TDecompressionStream
-
-constructor TDecompressionStream.Create(Source: TStream);
-begin
- inherited Create(Source);
- FZRec.next_in := FBuffer;
- FZRec.avail_in := 0;
- DCheck(inflateInit_(FZRec, zlib_version, sizeof(FZRec)));
-end;
-
-destructor TDecompressionStream.Destroy;
-begin
- FStrm.Seek(-FZRec.avail_in, 1);
- inflateEnd(FZRec);
- inherited Destroy;
-end;
-
-function TDecompressionStream.Read(var Buffer; Count: Longint): Longint;
-begin
- FZRec.next_out := @Buffer;
- FZRec.avail_out := Count;
- if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
- while (FZRec.avail_out > 0) do
- begin
- if FZRec.avail_in = 0 then
- begin
- FZRec.avail_in := FStrm.Read(FBuffer, sizeof(FBuffer));
- if FZRec.avail_in = 0 then
- begin
- Result := Count - FZRec.avail_out;
- Exit;
- end;
- FZRec.next_in := FBuffer;
- FStrmPos := FStrm.Position;
- Progress(Self);
- end;
- CCheck(inflate(FZRec, 0));
- end;
- Result := Count;
-end;
-
-function TDecompressionStream.Write(const Buffer; Count: Longint): Longint;
-begin
- raise EDecompressionError.CreateRes(@sInvalidStreamOp);
-end;
-
-function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
-var
- I: Integer;
- Buf: array [0..4095] of Char;
-begin
- if (Offset = 0) and (Origin = soFromBeginning) then
- begin
- DCheck(inflateReset(FZRec));
- FZRec.next_in := FBuffer;
- FZRec.avail_in := 0;
- FStrm.Position := 0;
- FStrmPos := 0;
- end
- else if ( (Offset >= 0) and (Origin = soFromCurrent)) or
- ( ((Offset - FZRec.total_out) > 0) and (Origin = soFromBeginning)) then
- begin
- if Origin = soFromBeginning then Dec(Offset, FZRec.total_out);
- if Offset > 0 then
- begin
- for I := 1 to Offset div sizeof(Buf) do
- ReadBuffer(Buf, sizeof(Buf));
- ReadBuffer(Buf, Offset mod sizeof(Buf));
- end;
- end
- else
- raise EDecompressionError.CreateRes(@sInvalidStreamOp);
- Result := FZRec.total_out;
-end;
-
-
-end.
+++ /dev/null
-unit ZLibConst;
-
-interface
-
-resourcestring
- sTargetBufferTooSmall = 'ZLib error: target buffer may be too small';
- sInvalidStreamOp = 'Invalid stream operation';
-
-implementation
-
-end.
+++ /dev/null
-
-Overview
-========
-
-This directory contains an update to the ZLib interface unit,
-distributed by Borland as a Delphi supplemental component.
-
-The original ZLib unit is Copyright (c) 1997,99 Borland Corp.,
-and is based on zlib version 1.0.4. There are a series of bugs
-and security problems associated with that old zlib version, and
-we recommend the users to update their ZLib unit.
-
-
-Summary of modifications
-========================
-
-- Improved makefile, adapted to zlib version 1.2.1.
-
-- Some field types from TZStreamRec are changed from Integer to
- Longint, for consistency with the zlib.h header, and for 64-bit
- readiness.
-
-- The zlib_version constant is updated.
-
-- The new Z_RLE strategy has its corresponding symbolic constant.
-
-- The allocation and deallocation functions and function types
- (TAlloc, TFree, zlibAllocMem and zlibFreeMem) are now cdecl,
- and _malloc and _free are added as C RTL stubs. As a result,
- the original C sources of zlib can be compiled out of the box,
- and linked to the ZLib unit.
-
-
-Suggestions for improvements
-============================
-
-Currently, the ZLib unit provides only a limited wrapper around
-the zlib library, and much of the original zlib functionality is
-missing. Handling compressed file formats like ZIP/GZIP or PNG
-cannot be implemented without having this functionality.
-Applications that handle these formats are either using their own,
-duplicated code, or not using the ZLib unit at all.
-
-Here are a few suggestions:
-
-- Checksum class wrappers around adler32() and crc32(), similar
- to the Java classes that implement the java.util.zip.Checksum
- interface.
-
-- The ability to read and write raw deflate streams, without the
- zlib stream header and trailer. Raw deflate streams are used
- in the ZIP file format.
-
-- The ability to read and write gzip streams, used in the GZIP
- file format, and normally produced by the gzip program.
-
-- The ability to select a different compression strategy, useful
- to PNG and MNG image compression, and to multimedia compression
- in general. Besides the compression level
-
- TCompressionLevel = (clNone, clFastest, clDefault, clMax);
-
- which, in fact, could have used the 'z' prefix and avoided
- TColor-like symbols
-
- TCompressionLevel = (zcNone, zcFastest, zcDefault, zcMax);
-
- there could be a compression strategy
-
- TCompressionStrategy = (zsDefault, zsFiltered, zsHuffmanOnly, zsRle);
-
-- ZIP and GZIP stream handling via TStreams.
-
-
---
-Cosmin Truta <cosmint@cs.ubbcluj.ro>
+++ /dev/null
-# Makefile for zlib
-# For use with Delphi and C++ Builder under Win32
-# Updated for zlib 1.2.x by Cosmin Truta
-
-# ------------ Borland C++ ------------
-
-# This project uses the Delphi (fastcall/register) calling convention:
-LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl
-
-CC = bcc32
-LD = bcc32
-AR = tlib
-# do not use "-pr" in CFLAGS
-CFLAGS = -a -d -k- -O2 $(LOC)
-LDFLAGS =
-
-
-# variables
-ZLIB_LIB = zlib.lib
-
-OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
-OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
-OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
-OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
-
-
-# targets
-all: $(ZLIB_LIB) example.exe minigzip.exe
-
-.c.obj:
- $(CC) -c $(CFLAGS) $*.c
-
-adler32.obj: adler32.c zlib.h zconf.h
-
-compress.obj: compress.c zlib.h zconf.h
-
-crc32.obj: crc32.c zlib.h zconf.h crc32.h
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
-
-gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
-
-gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
-
-gzread.obj: gzread.c zlib.h zconf.h gzguts.h
-
-gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
-
-infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
- inffast.h inffixed.h
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
- inffast.h
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
- inffast.h inffixed.h
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
-
-trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
-
-uncompr.obj: uncompr.c zlib.h zconf.h
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
-
-example.obj: test/example.c zlib.h zconf.h
-
-minigzip.obj: test/minigzip.c zlib.h zconf.h
-
-
-# For the sake of the old Borland make,
-# the command line is cut to fit in the MS-DOS 128 byte limit:
-$(ZLIB_LIB): $(OBJ1) $(OBJ2)
- -del $(ZLIB_LIB)
- $(AR) $(ZLIB_LIB) $(OBJP1)
- $(AR) $(ZLIB_LIB) $(OBJP2)
-
-
-# testing
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-example.exe: example.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
-
-minigzip.exe: minigzip.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
-
-
-# cleanup
-clean:
- -del *.obj
- -del *.exe
- -del *.lib
- -del *.tds
- -del zlib.bak
- -del foo.gz
-
+++ /dev/null
-<?xml version="1.0" encoding="utf-8" ?>\r
-<project name="DotZLib" default="build" basedir="./DotZLib">\r
- <description>A .Net wrapper library around ZLib1.dll</description>\r
-\r
- <property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />\r
- <property name="build.root" value="bin" />\r
-\r
- <property name="debug" value="true" />\r
- <property name="nunit" value="true" />\r
-\r
- <property name="build.folder" value="${build.root}/debug/" if="${debug}" />\r
- <property name="build.folder" value="${build.root}/release/" unless="${debug}" />\r
-\r
- <target name="clean" description="Remove all generated files">\r
- <delete dir="${build.root}" failonerror="false" />\r
- </target>\r
-\r
- <target name="build" description="compiles the source code">\r
-\r
- <mkdir dir="${build.folder}" />\r
- <csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">\r
- <references basedir="${nunit.location}">\r
- <includes if="${nunit}" name="nunit.framework.dll" />\r
- </references>\r
- <sources>\r
- <includes name="*.cs" />\r
- <excludes name="UnitTests.cs" unless="${nunit}" />\r
- </sources>\r
- <arg value="/d:nunit" if="${nunit}" />\r
- </csc>\r
- </target>\r
-\r
-</project>
\ No newline at end of file
+++ /dev/null
-Microsoft Visual Studio Solution File, Format Version 8.00\r
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- EndProjectSection\r
-EndProject\r
-Global\r
- GlobalSection(SolutionConfiguration) = preSolution\r
- Debug = Debug\r
- Release = Release\r
- EndGlobalSection\r
- GlobalSection(ProjectConfiguration) = postSolution\r
- {BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET\r
- {BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET\r
- {BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET\r
- {BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET\r
- EndGlobalSection\r
- GlobalSection(ExtensibilityGlobals) = postSolution\r
- EndGlobalSection\r
- GlobalSection(ExtensibilityAddIns) = postSolution\r
- EndGlobalSection\r
-EndGlobal\r
+++ /dev/null
-using System.Reflection;\r
-using System.Runtime.CompilerServices;\r
-\r
-//\r
-// General Information about an assembly is controlled through the following\r
-// set of attributes. Change these attribute values to modify the information\r
-// associated with an assembly.\r
-//\r
-[assembly: AssemblyTitle("DotZLib")]\r
-[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]\r
-[assembly: AssemblyConfiguration("")]\r
-[assembly: AssemblyCompany("Henrik Ravn")]\r
-[assembly: AssemblyProduct("")]\r
-[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]\r
-[assembly: AssemblyTrademark("")]\r
-[assembly: AssemblyCulture("")]\r
-\r
-//\r
-// Version information for an assembly consists of the following four values:\r
-//\r
-// Major Version\r
-// Minor Version\r
-// Build Number\r
-// Revision\r
-//\r
-// You can specify all the values or you can default the Revision and Build Numbers\r
-// by using the '*' as shown below:\r
-\r
-[assembly: AssemblyVersion("1.0.*")]\r
-\r
-//\r
-// In order to sign your assembly you must specify a key to use. Refer to the\r
-// Microsoft .NET Framework documentation for more information on assembly signing.\r
-//\r
-// Use the attributes below to control which key is used for signing.\r
-//\r
-// Notes:\r
-// (*) If no key is specified, the assembly is not signed.\r
-// (*) KeyName refers to a key that has been installed in the Crypto Service\r
-// Provider (CSP) on your machine. KeyFile refers to a file which contains\r
-// a key.\r
-// (*) If the KeyFile and the KeyName values are both specified, the\r
-// following processing occurs:\r
-// (1) If the KeyName can be found in the CSP, that key is used.\r
-// (2) If the KeyName does not exist and the KeyFile does exist, the key\r
-// in the KeyFile is installed into the CSP and used.\r
-// (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.\r
-// When specifying the KeyFile, the location of the KeyFile should be\r
-// relative to the project output directory which is\r
-// %Project Directory%\obj\<configuration>. For example, if your KeyFile is\r
-// located in the project directory, you would specify the AssemblyKeyFile\r
-// attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]\r
-// (*) Delay Signing is an advanced option - see the Microsoft .NET Framework\r
-// documentation for more information on this.\r
-//\r
-[assembly: AssemblyDelaySign(false)]\r
-[assembly: AssemblyKeyFile("")]\r
-[assembly: AssemblyKeyName("")]\r
+++ /dev/null
-//\r
-// © Copyright Henrik Ravn 2004\r
-//\r
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-using System;\r
-using System.Runtime.InteropServices;\r
-using System.Text;\r
-\r
-\r
-namespace DotZLib\r
-{\r
- #region ChecksumGeneratorBase\r
- /// <summary>\r
- /// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s\r
- /// </summary>\r
- /// <example></example>\r
- public abstract class ChecksumGeneratorBase : ChecksumGenerator\r
- {\r
- /// <summary>\r
- /// The value of the current checksum\r
- /// </summary>\r
- protected uint _current;\r
-\r
- /// <summary>\r
- /// Initializes a new instance of the checksum generator base - the current checksum is\r
- /// set to zero\r
- /// </summary>\r
- public ChecksumGeneratorBase()\r
- {\r
- _current = 0;\r
- }\r
-\r
- /// <summary>\r
- /// Initializes a new instance of the checksum generator basewith a specified value\r
- /// </summary>\r
- /// <param name="initialValue">The value to set the current checksum to</param>\r
- public ChecksumGeneratorBase(uint initialValue)\r
- {\r
- _current = initialValue;\r
- }\r
-\r
- /// <summary>\r
- /// Resets the current checksum to zero\r
- /// </summary>\r
- public void Reset() { _current = 0; }\r
-\r
- /// <summary>\r
- /// Gets the current checksum value\r
- /// </summary>\r
- public uint Value { get { return _current; } }\r
-\r
- /// <summary>\r
- /// Updates the current checksum with part of an array of bytes\r
- /// </summary>\r
- /// <param name="data">The data to update the checksum with</param>\r
- /// <param name="offset">Where in <c>data</c> to start updating</param>\r
- /// <param name="count">The number of bytes from <c>data</c> to use</param>\r
- /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>\r
- /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>\r
- /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>\r
- /// <remarks>All the other <c>Update</c> methods are implmeneted in terms of this one.\r
- /// This is therefore the only method a derived class has to implement</remarks>\r
- public abstract void Update(byte[] data, int offset, int count);\r
-\r
- /// <summary>\r
- /// Updates the current checksum with an array of bytes.\r
- /// </summary>\r
- /// <param name="data">The data to update the checksum with</param>\r
- public void Update(byte[] data)\r
- {\r
- Update(data, 0, data.Length);\r
- }\r
-\r
- /// <summary>\r
- /// Updates the current checksum with the data from a string\r
- /// </summary>\r
- /// <param name="data">The string to update the checksum with</param>\r
- /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>\r
- public void Update(string data)\r
- {\r
- Update(Encoding.UTF8.GetBytes(data));\r
- }\r
-\r
- /// <summary>\r
- /// Updates the current checksum with the data from a string, using a specific encoding\r
- /// </summary>\r
- /// <param name="data">The string to update the checksum with</param>\r
- /// <param name="encoding">The encoding to use</param>\r
- public void Update(string data, Encoding encoding)\r
- {\r
- Update(encoding.GetBytes(data));\r
- }\r
-\r
- }\r
- #endregion\r
-\r
- #region CRC32\r
- /// <summary>\r
- /// Implements a CRC32 checksum generator\r
- /// </summary>\r
- public sealed class CRC32Checksum : ChecksumGeneratorBase\r
- {\r
- #region DLL imports\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern uint crc32(uint crc, int data, uint length);\r
-\r
- #endregion\r
-\r
- /// <summary>\r
- /// Initializes a new instance of the CRC32 checksum generator\r
- /// </summary>\r
- public CRC32Checksum() : base() {}\r
-\r
- /// <summary>\r
- /// Initializes a new instance of the CRC32 checksum generator with a specified value\r
- /// </summary>\r
- /// <param name="initialValue">The value to set the current checksum to</param>\r
- public CRC32Checksum(uint initialValue) : base(initialValue) {}\r
-\r
- /// <summary>\r
- /// Updates the current checksum with part of an array of bytes\r
- /// </summary>\r
- /// <param name="data">The data to update the checksum with</param>\r
- /// <param name="offset">Where in <c>data</c> to start updating</param>\r
- /// <param name="count">The number of bytes from <c>data</c> to use</param>\r
- /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>\r
- /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>\r
- /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>\r
- public override void Update(byte[] data, int offset, int count)\r
- {\r
- if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();\r
- if ((offset+count) > data.Length) throw new ArgumentException();\r
- GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);\r
- try\r
- {\r
- _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);\r
- }\r
- finally\r
- {\r
- hData.Free();\r
- }\r
- }\r
-\r
- }\r
- #endregion\r
-\r
- #region Adler\r
- /// <summary>\r
- /// Implements a checksum generator that computes the Adler checksum on data\r
- /// </summary>\r
- public sealed class AdlerChecksum : ChecksumGeneratorBase\r
- {\r
- #region DLL imports\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern uint adler32(uint adler, int data, uint length);\r
-\r
- #endregion\r
-\r
- /// <summary>\r
- /// Initializes a new instance of the Adler checksum generator\r
- /// </summary>\r
- public AdlerChecksum() : base() {}\r
-\r
- /// <summary>\r
- /// Initializes a new instance of the Adler checksum generator with a specified value\r
- /// </summary>\r
- /// <param name="initialValue">The value to set the current checksum to</param>\r
- public AdlerChecksum(uint initialValue) : base(initialValue) {}\r
-\r
- /// <summary>\r
- /// Updates the current checksum with part of an array of bytes\r
- /// </summary>\r
- /// <param name="data">The data to update the checksum with</param>\r
- /// <param name="offset">Where in <c>data</c> to start updating</param>\r
- /// <param name="count">The number of bytes from <c>data</c> to use</param>\r
- /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>\r
- /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>\r
- /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>\r
- public override void Update(byte[] data, int offset, int count)\r
- {\r
- if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();\r
- if ((offset+count) > data.Length) throw new ArgumentException();\r
- GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);\r
- try\r
- {\r
- _current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);\r
- }\r
- finally\r
- {\r
- hData.Free();\r
- }\r
- }\r
-\r
- }\r
- #endregion\r
-\r
-}
\ No newline at end of file
+++ /dev/null
-//\r
-// © Copyright Henrik Ravn 2004\r
-//\r
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-using System;\r
-using System.Diagnostics;\r
-\r
-namespace DotZLib\r
-{\r
-\r
- /// <summary>\r
- /// This class implements a circular buffer\r
- /// </summary>\r
- internal class CircularBuffer\r
- {\r
- #region Private data\r
- private int _capacity;\r
- private int _head;\r
- private int _tail;\r
- private int _size;\r
- private byte[] _buffer;\r
- #endregion\r
-\r
- public CircularBuffer(int capacity)\r
- {\r
- Debug.Assert( capacity > 0 );\r
- _buffer = new byte[capacity];\r
- _capacity = capacity;\r
- _head = 0;\r
- _tail = 0;\r
- _size = 0;\r
- }\r
-\r
- public int Size { get { return _size; } }\r
-\r
- public int Put(byte[] source, int offset, int count)\r
- {\r
- Debug.Assert( count > 0 );\r
- int trueCount = Math.Min(count, _capacity - Size);\r
- for (int i = 0; i < trueCount; ++i)\r
- _buffer[(_tail+i) % _capacity] = source[offset+i];\r
- _tail += trueCount;\r
- _tail %= _capacity;\r
- _size += trueCount;\r
- return trueCount;\r
- }\r
-\r
- public bool Put(byte b)\r
- {\r
- if (Size == _capacity) // no room\r
- return false;\r
- _buffer[_tail++] = b;\r
- _tail %= _capacity;\r
- ++_size;\r
- return true;\r
- }\r
-\r
- public int Get(byte[] destination, int offset, int count)\r
- {\r
- int trueCount = Math.Min(count,Size);\r
- for (int i = 0; i < trueCount; ++i)\r
- destination[offset + i] = _buffer[(_head+i) % _capacity];\r
- _head += trueCount;\r
- _head %= _capacity;\r
- _size -= trueCount;\r
- return trueCount;\r
- }\r
-\r
- public int Get()\r
- {\r
- if (Size == 0)\r
- return -1;\r
-\r
- int result = (int)_buffer[_head++ % _capacity];\r
- --_size;\r
- return result;\r
- }\r
-\r
- }\r
-}\r
+++ /dev/null
-//\r
-// © Copyright Henrik Ravn 2004\r
-//\r
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-using System;\r
-using System.Runtime.InteropServices;\r
-\r
-namespace DotZLib\r
-{\r
- /// <summary>\r
- /// Implements the common functionality needed for all <see cref="Codec"/>s\r
- /// </summary>\r
- public abstract class CodecBase : Codec, IDisposable\r
- {\r
-\r
- #region Data members\r
-\r
- /// <summary>\r
- /// Instance of the internal zlib buffer structure that is\r
- /// passed to all functions in the zlib dll\r
- /// </summary>\r
- internal ZStream _ztream = new ZStream();\r
-\r
- /// <summary>\r
- /// True if the object instance has been disposed, false otherwise\r
- /// </summary>\r
- protected bool _isDisposed = false;\r
-\r
- /// <summary>\r
- /// The size of the internal buffers\r
- /// </summary>\r
- protected const int kBufferSize = 16384;\r
-\r
- private byte[] _outBuffer = new byte[kBufferSize];\r
- private byte[] _inBuffer = new byte[kBufferSize];\r
-\r
- private GCHandle _hInput;\r
- private GCHandle _hOutput;\r
-\r
- private uint _checksum = 0;\r
-\r
- #endregion\r
-\r
- /// <summary>\r
- /// Initializes a new instance of the <c>CodeBase</c> class.\r
- /// </summary>\r
- public CodecBase()\r
- {\r
- try\r
- {\r
- _hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);\r
- _hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);\r
- }\r
- catch (Exception)\r
- {\r
- CleanUp(false);\r
- throw;\r
- }\r
- }\r
-\r
-\r
- #region Codec Members\r
-\r
- /// <summary>\r
- /// Occurs when more processed data are available.\r
- /// </summary>\r
- public event DataAvailableHandler DataAvailable;\r
-\r
- /// <summary>\r
- /// Fires the <see cref="DataAvailable"/> event\r
- /// </summary>\r
- protected void OnDataAvailable()\r
- {\r
- if (_ztream.total_out > 0)\r
- {\r
- if (DataAvailable != null)\r
- DataAvailable( _outBuffer, 0, (int)_ztream.total_out);\r
- resetOutput();\r
- }\r
- }\r
-\r
- /// <summary>\r
- /// Adds more data to the codec to be processed.\r
- /// </summary>\r
- /// <param name="data">Byte array containing the data to be added to the codec</param>\r
- /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>\r
- public void Add(byte[] data)\r
- {\r
- Add(data,0,data.Length);\r
- }\r
-\r
- /// <summary>\r
- /// Adds more data to the codec to be processed.\r
- /// </summary>\r
- /// <param name="data">Byte array containing the data to be added to the codec</param>\r
- /// <param name="offset">The index of the first byte to add from <c>data</c></param>\r
- /// <param name="count">The number of bytes to add</param>\r
- /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>\r
- /// <remarks>This must be implemented by a derived class</remarks>\r
- public abstract void Add(byte[] data, int offset, int count);\r
-\r
- /// <summary>\r
- /// Finishes up any pending data that needs to be processed and handled.\r
- /// </summary>\r
- /// <remarks>This must be implemented by a derived class</remarks>\r
- public abstract void Finish();\r
-\r
- /// <summary>\r
- /// Gets the checksum of the data that has been added so far\r
- /// </summary>\r
- public uint Checksum { get { return _checksum; } }\r
-\r
- #endregion\r
-\r
- #region Destructor & IDisposable stuff\r
-\r
- /// <summary>\r
- /// Destroys this instance\r
- /// </summary>\r
- ~CodecBase()\r
- {\r
- CleanUp(false);\r
- }\r
-\r
- /// <summary>\r
- /// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class\r
- /// </summary>\r
- public void Dispose()\r
- {\r
- CleanUp(true);\r
- }\r
-\r
- /// <summary>\r
- /// Performs any codec specific cleanup\r
- /// </summary>\r
- /// <remarks>This must be implemented by a derived class</remarks>\r
- protected abstract void CleanUp();\r
-\r
- // performs the release of the handles and calls the dereived CleanUp()\r
- private void CleanUp(bool isDisposing)\r
- {\r
- if (!_isDisposed)\r
- {\r
- CleanUp();\r
- if (_hInput.IsAllocated)\r
- _hInput.Free();\r
- if (_hOutput.IsAllocated)\r
- _hOutput.Free();\r
-\r
- _isDisposed = true;\r
- }\r
- }\r
-\r
-\r
- #endregion\r
-\r
- #region Helper methods\r
-\r
- /// <summary>\r
- /// Copies a number of bytes to the internal codec buffer - ready for proccesing\r
- /// </summary>\r
- /// <param name="data">The byte array that contains the data to copy</param>\r
- /// <param name="startIndex">The index of the first byte to copy</param>\r
- /// <param name="count">The number of bytes to copy from <c>data</c></param>\r
- protected void copyInput(byte[] data, int startIndex, int count)\r
- {\r
- Array.Copy(data, startIndex, _inBuffer,0, count);\r
- _ztream.next_in = _hInput.AddrOfPinnedObject();\r
- _ztream.total_in = 0;\r
- _ztream.avail_in = (uint)count;\r
-\r
- }\r
-\r
- /// <summary>\r
- /// Resets the internal output buffers to a known state - ready for processing\r
- /// </summary>\r
- protected void resetOutput()\r
- {\r
- _ztream.total_out = 0;\r
- _ztream.avail_out = kBufferSize;\r
- _ztream.next_out = _hOutput.AddrOfPinnedObject();\r
- }\r
-\r
- /// <summary>\r
- /// Updates the running checksum property\r
- /// </summary>\r
- /// <param name="newSum">The new checksum value</param>\r
- protected void setChecksum(uint newSum)\r
- {\r
- _checksum = newSum;\r
- }\r
- #endregion\r
-\r
- }\r
-}\r
+++ /dev/null
-//\r
-// © Copyright Henrik Ravn 2004\r
-//\r
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-using System;\r
-using System.Diagnostics;\r
-using System.Runtime.InteropServices;\r
-\r
-namespace DotZLib\r
-{\r
-\r
- /// <summary>\r
- /// Implements a data compressor, using the deflate algorithm in the ZLib dll\r
- /// </summary>\r
- public sealed class Deflater : CodecBase\r
- {\r
- #region Dll imports\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]\r
- private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int deflate(ref ZStream sz, int flush);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int deflateReset(ref ZStream sz);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int deflateEnd(ref ZStream sz);\r
- #endregion\r
-\r
- /// <summary>\r
- /// Constructs an new instance of the <c>Deflater</c>\r
- /// </summary>\r
- /// <param name="level">The compression level to use for this <c>Deflater</c></param>\r
- public Deflater(CompressLevel level) : base()\r
- {\r
- int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));\r
- if (retval != 0)\r
- throw new ZLibException(retval, "Could not initialize deflater");\r
-\r
- resetOutput();\r
- }\r
-\r
- /// <summary>\r
- /// Adds more data to the codec to be processed.\r
- /// </summary>\r
- /// <param name="data">Byte array containing the data to be added to the codec</param>\r
- /// <param name="offset">The index of the first byte to add from <c>data</c></param>\r
- /// <param name="count">The number of bytes to add</param>\r
- /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>\r
- public override void Add(byte[] data, int offset, int count)\r
- {\r
- if (data == null) throw new ArgumentNullException();\r
- if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();\r
- if ((offset+count) > data.Length) throw new ArgumentException();\r
-\r
- int total = count;\r
- int inputIndex = offset;\r
- int err = 0;\r
-\r
- while (err >= 0 && inputIndex < total)\r
- {\r
- copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));\r
- while (err >= 0 && _ztream.avail_in > 0)\r
- {\r
- err = deflate(ref _ztream, (int)FlushTypes.None);\r
- if (err == 0)\r
- while (_ztream.avail_out == 0)\r
- {\r
- OnDataAvailable();\r
- err = deflate(ref _ztream, (int)FlushTypes.None);\r
- }\r
- inputIndex += (int)_ztream.total_in;\r
- }\r
- }\r
- setChecksum( _ztream.adler );\r
- }\r
-\r
-\r
- /// <summary>\r
- /// Finishes up any pending data that needs to be processed and handled.\r
- /// </summary>\r
- public override void Finish()\r
- {\r
- int err;\r
- do\r
- {\r
- err = deflate(ref _ztream, (int)FlushTypes.Finish);\r
- OnDataAvailable();\r
- }\r
- while (err == 0);\r
- setChecksum( _ztream.adler );\r
- deflateReset(ref _ztream);\r
- resetOutput();\r
- }\r
-\r
- /// <summary>\r
- /// Closes the internal zlib deflate stream\r
- /// </summary>\r
- protected override void CleanUp() { deflateEnd(ref _ztream); }\r
-\r
- }\r
-}\r
+++ /dev/null
-//\r
-// © Copyright Henrik Ravn 2004\r
-//\r
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-using System;\r
-using System.IO;\r
-using System.Runtime.InteropServices;\r
-using System.Text;\r
-\r
-\r
-namespace DotZLib\r
-{\r
-\r
- #region Internal types\r
-\r
- /// <summary>\r
- /// Defines constants for the various flush types used with zlib\r
- /// </summary>\r
- internal enum FlushTypes\r
- {\r
- None, Partial, Sync, Full, Finish, Block\r
- }\r
-\r
- #region ZStream structure\r
- // internal mapping of the zlib zstream structure for marshalling\r
- [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]\r
- internal struct ZStream\r
- {\r
- public IntPtr next_in;\r
- public uint avail_in;\r
- public uint total_in;\r
-\r
- public IntPtr next_out;\r
- public uint avail_out;\r
- public uint total_out;\r
-\r
- [MarshalAs(UnmanagedType.LPStr)]\r
- string msg;\r
- uint state;\r
-\r
- uint zalloc;\r
- uint zfree;\r
- uint opaque;\r
-\r
- int data_type;\r
- public uint adler;\r
- uint reserved;\r
- }\r
-\r
- #endregion\r
-\r
- #endregion\r
-\r
- #region Public enums\r
- /// <summary>\r
- /// Defines constants for the available compression levels in zlib\r
- /// </summary>\r
- public enum CompressLevel : int\r
- {\r
- /// <summary>\r
- /// The default compression level with a reasonable compromise between compression and speed\r
- /// </summary>\r
- Default = -1,\r
- /// <summary>\r
- /// No compression at all. The data are passed straight through.\r
- /// </summary>\r
- None = 0,\r
- /// <summary>\r
- /// The maximum compression rate available.\r
- /// </summary>\r
- Best = 9,\r
- /// <summary>\r
- /// The fastest available compression level.\r
- /// </summary>\r
- Fastest = 1\r
- }\r
- #endregion\r
-\r
- #region Exception classes\r
- /// <summary>\r
- /// The exception that is thrown when an error occurs on the zlib dll\r
- /// </summary>\r
- public class ZLibException : ApplicationException\r
- {\r
- /// <summary>\r
- /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified\r
- /// error message and error code\r
- /// </summary>\r
- /// <param name="errorCode">The zlib error code that caused the exception</param>\r
- /// <param name="msg">A message that (hopefully) describes the error</param>\r
- public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))\r
- {\r
- }\r
-\r
- /// <summary>\r
- /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified\r
- /// error code\r
- /// </summary>\r
- /// <param name="errorCode">The zlib error code that caused the exception</param>\r
- public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))\r
- {\r
- }\r
- }\r
- #endregion\r
-\r
- #region Interfaces\r
-\r
- /// <summary>\r
- /// Declares methods and properties that enables a running checksum to be calculated\r
- /// </summary>\r
- public interface ChecksumGenerator\r
- {\r
- /// <summary>\r
- /// Gets the current value of the checksum\r
- /// </summary>\r
- uint Value { get; }\r
-\r
- /// <summary>\r
- /// Clears the current checksum to 0\r
- /// </summary>\r
- void Reset();\r
-\r
- /// <summary>\r
- /// Updates the current checksum with an array of bytes\r
- /// </summary>\r
- /// <param name="data">The data to update the checksum with</param>\r
- void Update(byte[] data);\r
-\r
- /// <summary>\r
- /// Updates the current checksum with part of an array of bytes\r
- /// </summary>\r
- /// <param name="data">The data to update the checksum with</param>\r
- /// <param name="offset">Where in <c>data</c> to start updating</param>\r
- /// <param name="count">The number of bytes from <c>data</c> to use</param>\r
- /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>\r
- /// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>\r
- /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>\r
- void Update(byte[] data, int offset, int count);\r
-\r
- /// <summary>\r
- /// Updates the current checksum with the data from a string\r
- /// </summary>\r
- /// <param name="data">The string to update the checksum with</param>\r
- /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>\r
- void Update(string data);\r
-\r
- /// <summary>\r
- /// Updates the current checksum with the data from a string, using a specific encoding\r
- /// </summary>\r
- /// <param name="data">The string to update the checksum with</param>\r
- /// <param name="encoding">The encoding to use</param>\r
- void Update(string data, Encoding encoding);\r
- }\r
-\r
-\r
- /// <summary>\r
- /// Represents the method that will be called from a codec when new data\r
- /// are available.\r
- /// </summary>\r
- /// <paramref name="data">The byte array containing the processed data</paramref>\r
- /// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>\r
- /// <paramref name="count">The number of processed bytes available</paramref>\r
- /// <remarks>On return from this method, the data may be overwritten, so grab it while you can.\r
- /// You cannot assume that startIndex will be zero.\r
- /// </remarks>\r
- public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);\r
-\r
- /// <summary>\r
- /// Declares methods and events for implementing compressors/decompressors\r
- /// </summary>\r
- public interface Codec\r
- {\r
- /// <summary>\r
- /// Occurs when more processed data are available.\r
- /// </summary>\r
- event DataAvailableHandler DataAvailable;\r
-\r
- /// <summary>\r
- /// Adds more data to the codec to be processed.\r
- /// </summary>\r
- /// <param name="data">Byte array containing the data to be added to the codec</param>\r
- /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>\r
- void Add(byte[] data);\r
-\r
- /// <summary>\r
- /// Adds more data to the codec to be processed.\r
- /// </summary>\r
- /// <param name="data">Byte array containing the data to be added to the codec</param>\r
- /// <param name="offset">The index of the first byte to add from <c>data</c></param>\r
- /// <param name="count">The number of bytes to add</param>\r
- /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>\r
- void Add(byte[] data, int offset, int count);\r
-\r
- /// <summary>\r
- /// Finishes up any pending data that needs to be processed and handled.\r
- /// </summary>\r
- void Finish();\r
-\r
- /// <summary>\r
- /// Gets the checksum of the data that has been added so far\r
- /// </summary>\r
- uint Checksum { get; }\r
-\r
-\r
- }\r
-\r
- #endregion\r
-\r
- #region Classes\r
- /// <summary>\r
- /// Encapsulates general information about the ZLib library\r
- /// </summary>\r
- public class Info\r
- {\r
- #region DLL imports\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern uint zlibCompileFlags();\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern string zlibVersion();\r
- #endregion\r
-\r
- #region Private stuff\r
- private uint _flags;\r
-\r
- // helper function that unpacks a bitsize mask\r
- private static int bitSize(uint bits)\r
- {\r
- switch (bits)\r
- {\r
- case 0: return 16;\r
- case 1: return 32;\r
- case 2: return 64;\r
- }\r
- return -1;\r
- }\r
- #endregion\r
-\r
- /// <summary>\r
- /// Constructs an instance of the <c>Info</c> class.\r
- /// </summary>\r
- public Info()\r
- {\r
- _flags = zlibCompileFlags();\r
- }\r
-\r
- /// <summary>\r
- /// True if the library is compiled with debug info\r
- /// </summary>\r
- public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }\r
-\r
- /// <summary>\r
- /// True if the library is compiled with assembly optimizations\r
- /// </summary>\r
- public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }\r
-\r
- /// <summary>\r
- /// Gets the size of the unsigned int that was compiled into Zlib\r
- /// </summary>\r
- public int SizeOfUInt { get { return bitSize(_flags & 3); } }\r
-\r
- /// <summary>\r
- /// Gets the size of the unsigned long that was compiled into Zlib\r
- /// </summary>\r
- public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }\r
-\r
- /// <summary>\r
- /// Gets the size of the pointers that were compiled into Zlib\r
- /// </summary>\r
- public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }\r
-\r
- /// <summary>\r
- /// Gets the size of the z_off_t type that was compiled into Zlib\r
- /// </summary>\r
- public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }\r
-\r
- /// <summary>\r
- /// Gets the version of ZLib as a string, e.g. "1.2.1"\r
- /// </summary>\r
- public static string Version { get { return zlibVersion(); } }\r
- }\r
-\r
- #endregion\r
-\r
-}\r
+++ /dev/null
-<VisualStudioProject>\r
- <CSHARP\r
- ProjectType = "Local"\r
- ProductVersion = "7.10.3077"\r
- SchemaVersion = "2.0"\r
- ProjectGuid = "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"\r
- >\r
- <Build>\r
- <Settings\r
- ApplicationIcon = ""\r
- AssemblyKeyContainerName = ""\r
- AssemblyName = "DotZLib"\r
- AssemblyOriginatorKeyFile = ""\r
- DefaultClientScript = "JScript"\r
- DefaultHTMLPageLayout = "Grid"\r
- DefaultTargetSchema = "IE50"\r
- DelaySign = "false"\r
- OutputType = "Library"\r
- PreBuildEvent = ""\r
- PostBuildEvent = ""\r
- RootNamespace = "DotZLib"\r
- RunPostBuildEvent = "OnBuildSuccess"\r
- StartupObject = ""\r
- >\r
- <Config\r
- Name = "Debug"\r
- AllowUnsafeBlocks = "false"\r
- BaseAddress = "285212672"\r
- CheckForOverflowUnderflow = "false"\r
- ConfigurationOverrideFile = ""\r
- DefineConstants = "DEBUG;TRACE"\r
- DocumentationFile = "docs\DotZLib.xml"\r
- DebugSymbols = "true"\r
- FileAlignment = "4096"\r
- IncrementalBuild = "false"\r
- NoStdLib = "false"\r
- NoWarn = "1591"\r
- Optimize = "false"\r
- OutputPath = "bin\Debug\"\r
- RegisterForComInterop = "false"\r
- RemoveIntegerChecks = "false"\r
- TreatWarningsAsErrors = "false"\r
- WarningLevel = "4"\r
- />\r
- <Config\r
- Name = "Release"\r
- AllowUnsafeBlocks = "false"\r
- BaseAddress = "285212672"\r
- CheckForOverflowUnderflow = "false"\r
- ConfigurationOverrideFile = ""\r
- DefineConstants = "TRACE"\r
- DocumentationFile = "docs\DotZLib.xml"\r
- DebugSymbols = "false"\r
- FileAlignment = "4096"\r
- IncrementalBuild = "false"\r
- NoStdLib = "false"\r
- NoWarn = ""\r
- Optimize = "true"\r
- OutputPath = "bin\Release\"\r
- RegisterForComInterop = "false"\r
- RemoveIntegerChecks = "false"\r
- TreatWarningsAsErrors = "false"\r
- WarningLevel = "4"\r
- />\r
- </Settings>\r
- <References>\r
- <Reference\r
- Name = "System"\r
- AssemblyName = "System"\r
- HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.dll"\r
- />\r
- <Reference\r
- Name = "System.Data"\r
- AssemblyName = "System.Data"\r
- HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.Data.dll"\r
- />\r
- <Reference\r
- Name = "System.XML"\r
- AssemblyName = "System.Xml"\r
- HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.XML.dll"\r
- />\r
- <Reference\r
- Name = "nunit.framework"\r
- AssemblyName = "nunit.framework"\r
- HintPath = "E:\apps\NUnit V2.1\\bin\nunit.framework.dll"\r
- AssemblyFolderKey = "hklm\dn\nunit.framework"\r
- />\r
- </References>\r
- </Build>\r
- <Files>\r
- <Include>\r
- <File\r
- RelPath = "AssemblyInfo.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- <File\r
- RelPath = "ChecksumImpl.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- <File\r
- RelPath = "CircularBuffer.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- <File\r
- RelPath = "CodecBase.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- <File\r
- RelPath = "Deflater.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- <File\r
- RelPath = "DotZLib.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- <File\r
- RelPath = "GZipStream.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- <File\r
- RelPath = "Inflater.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- <File\r
- RelPath = "UnitTests.cs"\r
- SubType = "Code"\r
- BuildAction = "Compile"\r
- />\r
- </Include>\r
- </Files>\r
- </CSHARP>\r
-</VisualStudioProject>\r
-\r
+++ /dev/null
-//\r
-// © Copyright Henrik Ravn 2004\r
-//\r
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-using System;\r
-using System.IO;\r
-using System.Runtime.InteropServices;\r
-\r
-namespace DotZLib\r
-{\r
- /// <summary>\r
- /// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.\r
- /// </summary>\r
- public class GZipStream : Stream, IDisposable\r
- {\r
- #region Dll Imports\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]\r
- private static extern IntPtr gzopen(string name, string mode);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int gzclose(IntPtr gzFile);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int gzwrite(IntPtr gzFile, int data, int length);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int gzread(IntPtr gzFile, int data, int length);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int gzgetc(IntPtr gzFile);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int gzputc(IntPtr gzFile, int c);\r
-\r
- #endregion\r
-\r
- #region Private data\r
- private IntPtr _gzFile;\r
- private bool _isDisposed = false;\r
- private bool _isWriting;\r
- #endregion\r
-\r
- #region Constructors\r
- /// <summary>\r
- /// Creates a new file as a writeable GZipStream\r
- /// </summary>\r
- /// <param name="fileName">The name of the compressed file to create</param>\r
- /// <param name="level">The compression level to use when adding data</param>\r
- /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>\r
- public GZipStream(string fileName, CompressLevel level)\r
- {\r
- _isWriting = true;\r
- _gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));\r
- if (_gzFile == IntPtr.Zero)\r
- throw new ZLibException(-1, "Could not open " + fileName);\r
- }\r
-\r
- /// <summary>\r
- /// Opens an existing file as a readable GZipStream\r
- /// </summary>\r
- /// <param name="fileName">The name of the file to open</param>\r
- /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>\r
- public GZipStream(string fileName)\r
- {\r
- _isWriting = false;\r
- _gzFile = gzopen(fileName, "rb");\r
- if (_gzFile == IntPtr.Zero)\r
- throw new ZLibException(-1, "Could not open " + fileName);\r
-\r
- }\r
- #endregion\r
-\r
- #region Access properties\r
- /// <summary>\r
- /// Returns true of this stream can be read from, false otherwise\r
- /// </summary>\r
- public override bool CanRead\r
- {\r
- get\r
- {\r
- return !_isWriting;\r
- }\r
- }\r
-\r
-\r
- /// <summary>\r
- /// Returns false.\r
- /// </summary>\r
- public override bool CanSeek\r
- {\r
- get\r
- {\r
- return false;\r
- }\r
- }\r
-\r
- /// <summary>\r
- /// Returns true if this tsream is writeable, false otherwise\r
- /// </summary>\r
- public override bool CanWrite\r
- {\r
- get\r
- {\r
- return _isWriting;\r
- }\r
- }\r
- #endregion\r
-\r
- #region Destructor & IDispose stuff\r
-\r
- /// <summary>\r
- /// Destroys this instance\r
- /// </summary>\r
- ~GZipStream()\r
- {\r
- cleanUp(false);\r
- }\r
-\r
- /// <summary>\r
- /// Closes the external file handle\r
- /// </summary>\r
- public void Dispose()\r
- {\r
- cleanUp(true);\r
- }\r
-\r
- // Does the actual closing of the file handle.\r
- private void cleanUp(bool isDisposing)\r
- {\r
- if (!_isDisposed)\r
- {\r
- gzclose(_gzFile);\r
- _isDisposed = true;\r
- }\r
- }\r
- #endregion\r
-\r
- #region Basic reading and writing\r
- /// <summary>\r
- /// Attempts to read a number of bytes from the stream.\r
- /// </summary>\r
- /// <param name="buffer">The destination data buffer</param>\r
- /// <param name="offset">The index of the first destination byte in <c>buffer</c></param>\r
- /// <param name="count">The number of bytes requested</param>\r
- /// <returns>The number of bytes read</returns>\r
- /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>\r
- /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>\r
- /// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is > buffer.Length</exception>\r
- /// <exception cref="NotSupportedException">If this stream is not readable.</exception>\r
- /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>\r
- public override int Read(byte[] buffer, int offset, int count)\r
- {\r
- if (!CanRead) throw new NotSupportedException();\r
- if (buffer == null) throw new ArgumentNullException();\r
- if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();\r
- if ((offset+count) > buffer.Length) throw new ArgumentException();\r
- if (_isDisposed) throw new ObjectDisposedException("GZipStream");\r
-\r
- GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);\r
- int result;\r
- try\r
- {\r
- result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);\r
- if (result < 0)\r
- throw new IOException();\r
- }\r
- finally\r
- {\r
- h.Free();\r
- }\r
- return result;\r
- }\r
-\r
- /// <summary>\r
- /// Attempts to read a single byte from the stream.\r
- /// </summary>\r
- /// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>\r
- public override int ReadByte()\r
- {\r
- if (!CanRead) throw new NotSupportedException();\r
- if (_isDisposed) throw new ObjectDisposedException("GZipStream");\r
- return gzgetc(_gzFile);\r
- }\r
-\r
- /// <summary>\r
- /// Writes a number of bytes to the stream\r
- /// </summary>\r
- /// <param name="buffer"></param>\r
- /// <param name="offset"></param>\r
- /// <param name="count"></param>\r
- /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>\r
- /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>\r
- /// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is > buffer.Length</exception>\r
- /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>\r
- /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>\r
- public override void Write(byte[] buffer, int offset, int count)\r
- {\r
- if (!CanWrite) throw new NotSupportedException();\r
- if (buffer == null) throw new ArgumentNullException();\r
- if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();\r
- if ((offset+count) > buffer.Length) throw new ArgumentException();\r
- if (_isDisposed) throw new ObjectDisposedException("GZipStream");\r
-\r
- GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);\r
- try\r
- {\r
- int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);\r
- if (result < 0)\r
- throw new IOException();\r
- }\r
- finally\r
- {\r
- h.Free();\r
- }\r
- }\r
-\r
- /// <summary>\r
- /// Writes a single byte to the stream\r
- /// </summary>\r
- /// <param name="value">The byte to add to the stream.</param>\r
- /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>\r
- /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>\r
- public override void WriteByte(byte value)\r
- {\r
- if (!CanWrite) throw new NotSupportedException();\r
- if (_isDisposed) throw new ObjectDisposedException("GZipStream");\r
-\r
- int result = gzputc(_gzFile, (int)value);\r
- if (result < 0)\r
- throw new IOException();\r
- }\r
- #endregion\r
-\r
- #region Position & length stuff\r
- /// <summary>\r
- /// Not supported.\r
- /// </summary>\r
- /// <param name="value"></param>\r
- /// <exception cref="NotSupportedException">Always thrown</exception>\r
- public override void SetLength(long value)\r
- {\r
- throw new NotSupportedException();\r
- }\r
-\r
- /// <summary>\r
- /// Not suppported.\r
- /// </summary>\r
- /// <param name="offset"></param>\r
- /// <param name="origin"></param>\r
- /// <returns></returns>\r
- /// <exception cref="NotSupportedException">Always thrown</exception>\r
- public override long Seek(long offset, SeekOrigin origin)\r
- {\r
- throw new NotSupportedException();\r
- }\r
-\r
- /// <summary>\r
- /// Flushes the <c>GZipStream</c>.\r
- /// </summary>\r
- /// <remarks>In this implementation, this method does nothing. This is because excessive\r
- /// flushing may degrade the achievable compression rates.</remarks>\r
- public override void Flush()\r
- {\r
- // left empty on purpose\r
- }\r
-\r
- /// <summary>\r
- /// Gets/sets the current position in the <c>GZipStream</c>. Not suppported.\r
- /// </summary>\r
- /// <remarks>In this implementation this property is not supported</remarks>\r
- /// <exception cref="NotSupportedException">Always thrown</exception>\r
- public override long Position\r
- {\r
- get\r
- {\r
- throw new NotSupportedException();\r
- }\r
- set\r
- {\r
- throw new NotSupportedException();\r
- }\r
- }\r
-\r
- /// <summary>\r
- /// Gets the size of the stream. Not suppported.\r
- /// </summary>\r
- /// <remarks>In this implementation this property is not supported</remarks>\r
- /// <exception cref="NotSupportedException">Always thrown</exception>\r
- public override long Length\r
- {\r
- get\r
- {\r
- throw new NotSupportedException();\r
- }\r
- }\r
- #endregion\r
- }\r
-}\r
+++ /dev/null
-//\r
-// © Copyright Henrik Ravn 2004\r
-//\r
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-using System;\r
-using System.Diagnostics;\r
-using System.Runtime.InteropServices;\r
-\r
-namespace DotZLib\r
-{\r
-\r
- /// <summary>\r
- /// Implements a data decompressor, using the inflate algorithm in the ZLib dll\r
- /// </summary>\r
- public class Inflater : CodecBase\r
- {\r
- #region Dll imports\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]\r
- private static extern int inflateInit_(ref ZStream sz, string vs, int size);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int inflate(ref ZStream sz, int flush);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int inflateReset(ref ZStream sz);\r
-\r
- [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]\r
- private static extern int inflateEnd(ref ZStream sz);\r
- #endregion\r
-\r
- /// <summary>\r
- /// Constructs an new instance of the <c>Inflater</c>\r
- /// </summary>\r
- public Inflater() : base()\r
- {\r
- int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));\r
- if (retval != 0)\r
- throw new ZLibException(retval, "Could not initialize inflater");\r
-\r
- resetOutput();\r
- }\r
-\r
-\r
- /// <summary>\r
- /// Adds more data to the codec to be processed.\r
- /// </summary>\r
- /// <param name="data">Byte array containing the data to be added to the codec</param>\r
- /// <param name="offset">The index of the first byte to add from <c>data</c></param>\r
- /// <param name="count">The number of bytes to add</param>\r
- /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>\r
- public override void Add(byte[] data, int offset, int count)\r
- {\r
- if (data == null) throw new ArgumentNullException();\r
- if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();\r
- if ((offset+count) > data.Length) throw new ArgumentException();\r
-\r
- int total = count;\r
- int inputIndex = offset;\r
- int err = 0;\r
-\r
- while (err >= 0 && inputIndex < total)\r
- {\r
- copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));\r
- err = inflate(ref _ztream, (int)FlushTypes.None);\r
- if (err == 0)\r
- while (_ztream.avail_out == 0)\r
- {\r
- OnDataAvailable();\r
- err = inflate(ref _ztream, (int)FlushTypes.None);\r
- }\r
-\r
- inputIndex += (int)_ztream.total_in;\r
- }\r
- setChecksum( _ztream.adler );\r
- }\r
-\r
-\r
- /// <summary>\r
- /// Finishes up any pending data that needs to be processed and handled.\r
- /// </summary>\r
- public override void Finish()\r
- {\r
- int err;\r
- do\r
- {\r
- err = inflate(ref _ztream, (int)FlushTypes.Finish);\r
- OnDataAvailable();\r
- }\r
- while (err == 0);\r
- setChecksum( _ztream.adler );\r
- inflateReset(ref _ztream);\r
- resetOutput();\r
- }\r
-\r
- /// <summary>\r
- /// Closes the internal zlib inflate stream\r
- /// </summary>\r
- protected override void CleanUp() { inflateEnd(ref _ztream); }\r
-\r
-\r
- }\r
-}\r
+++ /dev/null
-//\r
-// © Copyright Henrik Ravn 2004\r
-//\r
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-using System;\r
-using System.Collections;\r
-using System.IO;\r
-\r
-// uncomment the define below to include unit tests\r
-//#define nunit\r
-#if nunit\r
-using NUnit.Framework;\r
-\r
-// Unit tests for the DotZLib class library\r
-// ----------------------------------------\r
-//\r
-// Use this with NUnit 2 from http://www.nunit.org\r
-//\r
-\r
-namespace DotZLibTests\r
-{\r
- using DotZLib;\r
-\r
- // helper methods\r
- internal class Utils\r
- {\r
- public static bool byteArrEqual( byte[] lhs, byte[] rhs )\r
- {\r
- if (lhs.Length != rhs.Length)\r
- return false;\r
- for (int i = lhs.Length-1; i >= 0; --i)\r
- if (lhs[i] != rhs[i])\r
- return false;\r
- return true;\r
- }\r
-\r
- }\r
-\r
-\r
- [TestFixture]\r
- public class CircBufferTests\r
- {\r
- #region Circular buffer tests\r
- [Test]\r
- public void SinglePutGet()\r
- {\r
- CircularBuffer buf = new CircularBuffer(10);\r
- Assert.AreEqual( 0, buf.Size );\r
- Assert.AreEqual( -1, buf.Get() );\r
-\r
- Assert.IsTrue(buf.Put( 1 ));\r
- Assert.AreEqual( 1, buf.Size );\r
- Assert.AreEqual( 1, buf.Get() );\r
- Assert.AreEqual( 0, buf.Size );\r
- Assert.AreEqual( -1, buf.Get() );\r
- }\r
-\r
- [Test]\r
- public void BlockPutGet()\r
- {\r
- CircularBuffer buf = new CircularBuffer(10);\r
- byte[] arr = {1,2,3,4,5,6,7,8,9,10};\r
- Assert.AreEqual( 10, buf.Put(arr,0,10) );\r
- Assert.AreEqual( 10, buf.Size );\r
- Assert.IsFalse( buf.Put(11) );\r
- Assert.AreEqual( 1, buf.Get() );\r
- Assert.IsTrue( buf.Put(11) );\r
-\r
- byte[] arr2 = (byte[])arr.Clone();\r
- Assert.AreEqual( 9, buf.Get(arr2,1,9) );\r
- Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );\r
- }\r
-\r
- #endregion\r
- }\r
-\r
- [TestFixture]\r
- public class ChecksumTests\r
- {\r
- #region CRC32 Tests\r
- [Test]\r
- public void CRC32_Null()\r
- {\r
- CRC32Checksum crc32 = new CRC32Checksum();\r
- Assert.AreEqual( 0, crc32.Value );\r
-\r
- crc32 = new CRC32Checksum(1);\r
- Assert.AreEqual( 1, crc32.Value );\r
-\r
- crc32 = new CRC32Checksum(556);\r
- Assert.AreEqual( 556, crc32.Value );\r
- }\r
-\r
- [Test]\r
- public void CRC32_Data()\r
- {\r
- CRC32Checksum crc32 = new CRC32Checksum();\r
- byte[] data = { 1,2,3,4,5,6,7 };\r
- crc32.Update(data);\r
- Assert.AreEqual( 0x70e46888, crc32.Value );\r
-\r
- crc32 = new CRC32Checksum();\r
- crc32.Update("penguin");\r
- Assert.AreEqual( 0x0e5c1a120, crc32.Value );\r
-\r
- crc32 = new CRC32Checksum(1);\r
- crc32.Update("penguin");\r
- Assert.AreEqual(0x43b6aa94, crc32.Value);\r
-\r
- }\r
- #endregion\r
-\r
- #region Adler tests\r
-\r
- [Test]\r
- public void Adler_Null()\r
- {\r
- AdlerChecksum adler = new AdlerChecksum();\r
- Assert.AreEqual(0, adler.Value);\r
-\r
- adler = new AdlerChecksum(1);\r
- Assert.AreEqual( 1, adler.Value );\r
-\r
- adler = new AdlerChecksum(556);\r
- Assert.AreEqual( 556, adler.Value );\r
- }\r
-\r
- [Test]\r
- public void Adler_Data()\r
- {\r
- AdlerChecksum adler = new AdlerChecksum(1);\r
- byte[] data = { 1,2,3,4,5,6,7 };\r
- adler.Update(data);\r
- Assert.AreEqual( 0x5b001d, adler.Value );\r
-\r
- adler = new AdlerChecksum();\r
- adler.Update("penguin");\r
- Assert.AreEqual(0x0bcf02f6, adler.Value );\r
-\r
- adler = new AdlerChecksum(1);\r
- adler.Update("penguin");\r
- Assert.AreEqual(0x0bd602f7, adler.Value);\r
-\r
- }\r
- #endregion\r
- }\r
-\r
- [TestFixture]\r
- public class InfoTests\r
- {\r
- #region Info tests\r
- [Test]\r
- public void Info_Version()\r
- {\r
- Info info = new Info();\r
- Assert.AreEqual("1.2.8", Info.Version);\r
- Assert.AreEqual(32, info.SizeOfUInt);\r
- Assert.AreEqual(32, info.SizeOfULong);\r
- Assert.AreEqual(32, info.SizeOfPointer);\r
- Assert.AreEqual(32, info.SizeOfOffset);\r
- }\r
- #endregion\r
- }\r
-\r
- [TestFixture]\r
- public class DeflateInflateTests\r
- {\r
- #region Deflate tests\r
- [Test]\r
- public void Deflate_Init()\r
- {\r
- using (Deflater def = new Deflater(CompressLevel.Default))\r
- {\r
- }\r
- }\r
-\r
- private ArrayList compressedData = new ArrayList();\r
- private uint adler1;\r
-\r
- private ArrayList uncompressedData = new ArrayList();\r
- private uint adler2;\r
-\r
- public void CDataAvail(byte[] data, int startIndex, int count)\r
- {\r
- for (int i = 0; i < count; ++i)\r
- compressedData.Add(data[i+startIndex]);\r
- }\r
-\r
- [Test]\r
- public void Deflate_Compress()\r
- {\r
- compressedData.Clear();\r
-\r
- byte[] testData = new byte[35000];\r
- for (int i = 0; i < testData.Length; ++i)\r
- testData[i] = 5;\r
-\r
- using (Deflater def = new Deflater((CompressLevel)5))\r
- {\r
- def.DataAvailable += new DataAvailableHandler(CDataAvail);\r
- def.Add(testData);\r
- def.Finish();\r
- adler1 = def.Checksum;\r
- }\r
- }\r
- #endregion\r
-\r
- #region Inflate tests\r
- [Test]\r
- public void Inflate_Init()\r
- {\r
- using (Inflater inf = new Inflater())\r
- {\r
- }\r
- }\r
-\r
- private void DDataAvail(byte[] data, int startIndex, int count)\r
- {\r
- for (int i = 0; i < count; ++i)\r
- uncompressedData.Add(data[i+startIndex]);\r
- }\r
-\r
- [Test]\r
- public void Inflate_Expand()\r
- {\r
- uncompressedData.Clear();\r
-\r
- using (Inflater inf = new Inflater())\r
- {\r
- inf.DataAvailable += new DataAvailableHandler(DDataAvail);\r
- inf.Add((byte[])compressedData.ToArray(typeof(byte)));\r
- inf.Finish();\r
- adler2 = inf.Checksum;\r
- }\r
- Assert.AreEqual( adler1, adler2 );\r
- }\r
- #endregion\r
- }\r
-\r
- [TestFixture]\r
- public class GZipStreamTests\r
- {\r
- #region GZipStream test\r
- [Test]\r
- public void GZipStream_WriteRead()\r
- {\r
- using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))\r
- {\r
- BinaryWriter writer = new BinaryWriter(gzOut);\r
- writer.Write("hi there");\r
- writer.Write(Math.PI);\r
- writer.Write(42);\r
- }\r
-\r
- using (GZipStream gzIn = new GZipStream("gzstream.gz"))\r
- {\r
- BinaryReader reader = new BinaryReader(gzIn);\r
- string s = reader.ReadString();\r
- Assert.AreEqual("hi there",s);\r
- double d = reader.ReadDouble();\r
- Assert.AreEqual(Math.PI, d);\r
- int i = reader.ReadInt32();\r
- Assert.AreEqual(42,i);\r
- }\r
-\r
- }\r
- #endregion\r
- }\r
-}\r
-\r
-#endif\r
+++ /dev/null
-Boost Software License - Version 1.0 - August 17th, 2003\r
-\r
-Permission is hereby granted, free of charge, to any person or organization\r
-obtaining a copy of the software and accompanying documentation covered by\r
-this license (the "Software") to use, reproduce, display, distribute,\r
-execute, and transmit the Software, and to prepare derivative works of the\r
-Software, and to permit third-parties to whom the Software is furnished to\r
-do so, all subject to the following:\r
-\r
-The copyright notices in the Software and this entire statement, including\r
-the above license grant, this restriction and the following disclaimer,\r
-must be included in all copies of the Software, in whole or in part, and\r
-all derivative works of the Software, unless such copies or derivative\r
-works are solely in the form of machine-executable object code generated by\r
-a source language processor.\r
-\r
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r
-FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT\r
-SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE\r
-FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,\r
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\r
-DEALINGS IN THE SOFTWARE.
\ No newline at end of file
+++ /dev/null
-This directory contains a .Net wrapper class library for the ZLib1.dll\r
-\r
-The wrapper includes support for inflating/deflating memory buffers,\r
-.Net streaming wrappers for the gz streams part of zlib, and wrappers\r
-for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.\r
-\r
-Directory structure:\r
---------------------\r
-\r
-LICENSE_1_0.txt - License file.\r
-readme.txt - This file.\r
-DotZLib.chm - Class library documentation\r
-DotZLib.build - NAnt build file\r
-DotZLib.sln - Microsoft Visual Studio 2003 solution file\r
-\r
-DotZLib\*.cs - Source files for the class library\r
-\r
-Unit tests:\r
------------\r
-The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.\r
-To include unit tests in the build, define nunit before building.\r
-\r
-\r
-Build instructions:\r
--------------------\r
-\r
-1. Using Visual Studio.Net 2003:\r
- Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)\r
- will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on\r
- you are building the release or debug version of the library. Check\r
- DotZLib/UnitTests.cs for instructions on how to include unit tests in the\r
- build.\r
-\r
-2. Using NAnt:\r
- Open a command prompt with access to the build environment and run nant\r
- in the same directory as the DotZLib.build file.\r
- You can define 2 properties on the nant command-line to control the build:\r
- debug={true|false} to toggle between release/debug builds (default=true).\r
- nunit={true|false} to include or esclude unit tests (default=true).\r
- Also the target clean will remove binaries.\r
- Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release\r
- or ./DotZLib/bin/debug, depending on whether you are building the release\r
- or debug version of the library.\r
-\r
- Examples:\r
- nant -D:debug=false -D:nunit=false\r
- will build a release mode version of the library without unit tests.\r
- nant\r
- will build a debug version of the library with unit tests\r
- nant clean\r
- will remove all previously built files.\r
-\r
-\r
----------------------------------\r
-Copyright (c) Henrik Ravn 2004\r
-\r
-Use, modification and distribution are subject to the Boost Software License, Version 1.0.\r
-(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\r
+++ /dev/null
-/*\r
-;uInt longest_match_x64(\r
-; deflate_state *s,\r
-; IPos cur_match); // current match \r
-\r
-; gvmat64.S -- Asm portion of the optimized longest_match for 32 bits x86_64\r
-; (AMD64 on Athlon 64, Opteron, Phenom\r
-; and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)\r
-; this file is translation from gvmat64.asm to GCC 4.x (for Linux, Mac XCode)\r
-; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.\r
-;\r
-; File written by Gilles Vollant, by converting to assembly the longest_match\r
-; from Jean-loup Gailly in deflate.c of zLib and infoZip zip.\r
-; and by taking inspiration on asm686 with masm, optimised assembly code\r
-; from Brian Raiter, written 1998\r
-;\r
-; This software is provided 'as-is', without any express or implied\r
-; warranty. In no event will the authors be held liable for any damages\r
-; arising from the use of this software.\r
-;\r
-; Permission is granted to anyone to use this software for any purpose,\r
-; including commercial applications, and to alter it and redistribute it\r
-; freely, subject to the following restrictions:\r
-;\r
-; 1. The origin of this software must not be misrepresented; you must not\r
-; claim that you wrote the original software. If you use this software\r
-; in a product, an acknowledgment in the product documentation would be\r
-; appreciated but is not required.\r
-; 2. Altered source versions must be plainly marked as such, and must not be\r
-; misrepresented as being the original software\r
-; 3. This notice may not be removed or altered from any source distribution.\r
-;\r
-; http://www.zlib.net\r
-; http://www.winimage.com/zLibDll\r
-; http://www.muppetlabs.com/~breadbox/software/assembly.html\r
-;\r
-; to compile this file for zLib, I use option:\r
-; gcc -c -arch x86_64 gvmat64.S\r
-\r
-\r
-;uInt longest_match(s, cur_match)\r
-; deflate_state *s;\r
-; IPos cur_match; // current match /\r
-;\r
-; with XCode for Mac, I had strange error with some jump on intel syntax\r
-; this is why BEFORE_JMP and AFTER_JMP are used\r
- */\r
-\r
-\r
-#define BEFORE_JMP .att_syntax\r
-#define AFTER_JMP .intel_syntax noprefix\r
-\r
-#ifndef NO_UNDERLINE\r
-# define match_init _match_init\r
-# define longest_match _longest_match\r
-#endif\r
-\r
-.intel_syntax noprefix\r
-\r
-.globl match_init, longest_match\r
-.text\r
-longest_match:\r
-\r
-\r
-\r
-#define LocalVarsSize 96\r
-/*\r
-; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12\r
-; free register : r14,r15\r
-; register can be saved : rsp\r
-*/\r
-\r
-#define chainlenwmask (rsp + 8 - LocalVarsSize)\r
-#define nicematch (rsp + 16 - LocalVarsSize)\r
-\r
-#define save_rdi (rsp + 24 - LocalVarsSize)\r
-#define save_rsi (rsp + 32 - LocalVarsSize)\r
-#define save_rbx (rsp + 40 - LocalVarsSize)\r
-#define save_rbp (rsp + 48 - LocalVarsSize)\r
-#define save_r12 (rsp + 56 - LocalVarsSize)\r
-#define save_r13 (rsp + 64 - LocalVarsSize)\r
-#define save_r14 (rsp + 72 - LocalVarsSize)\r
-#define save_r15 (rsp + 80 - LocalVarsSize)\r
-\r
-\r
-/*\r
-; all the +4 offsets are due to the addition of pending_buf_size (in zlib\r
-; in the deflate_state structure since the asm code was first written\r
-; (if you compile with zlib 1.0.4 or older, remove the +4).\r
-; Note : these value are good with a 8 bytes boundary pack structure\r
-*/\r
-\r
-#define MAX_MATCH 258\r
-#define MIN_MATCH 3\r
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)\r
-\r
-/*\r
-;;; Offsets for fields in the deflate_state structure. These numbers\r
-;;; are calculated from the definition of deflate_state, with the\r
-;;; assumption that the compiler will dword-align the fields. (Thus,\r
-;;; changing the definition of deflate_state could easily cause this\r
-;;; program to crash horribly, without so much as a warning at\r
-;;; compile time. Sigh.)\r
-\r
-; all the +zlib1222add offsets are due to the addition of fields\r
-; in zlib in the deflate_state structure since the asm code was first written\r
-; (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").\r
-; (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").\r
-; if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").\r
-*/\r
-\r
-\r
-\r
-/* you can check the structure offset by running\r
-\r
-#include <stdlib.h>\r
-#include <stdio.h>\r
-#include "deflate.h"\r
-\r
-void print_depl()\r
-{\r
-deflate_state ds;\r
-deflate_state *s=&ds;\r
-printf("size pointer=%u\n",(int)sizeof(void*));\r
-\r
-printf("#define dsWSize %u\n",(int)(((char*)&(s->w_size))-((char*)s)));\r
-printf("#define dsWMask %u\n",(int)(((char*)&(s->w_mask))-((char*)s)));\r
-printf("#define dsWindow %u\n",(int)(((char*)&(s->window))-((char*)s)));\r
-printf("#define dsPrev %u\n",(int)(((char*)&(s->prev))-((char*)s)));\r
-printf("#define dsMatchLen %u\n",(int)(((char*)&(s->match_length))-((char*)s)));\r
-printf("#define dsPrevMatch %u\n",(int)(((char*)&(s->prev_match))-((char*)s)));\r
-printf("#define dsStrStart %u\n",(int)(((char*)&(s->strstart))-((char*)s)));\r
-printf("#define dsMatchStart %u\n",(int)(((char*)&(s->match_start))-((char*)s)));\r
-printf("#define dsLookahead %u\n",(int)(((char*)&(s->lookahead))-((char*)s)));\r
-printf("#define dsPrevLen %u\n",(int)(((char*)&(s->prev_length))-((char*)s)));\r
-printf("#define dsMaxChainLen %u\n",(int)(((char*)&(s->max_chain_length))-((char*)s)));\r
-printf("#define dsGoodMatch %u\n",(int)(((char*)&(s->good_match))-((char*)s)));\r
-printf("#define dsNiceMatch %u\n",(int)(((char*)&(s->nice_match))-((char*)s)));\r
-}\r
-*/\r
-\r
-#define dsWSize 68\r
-#define dsWMask 76\r
-#define dsWindow 80\r
-#define dsPrev 96\r
-#define dsMatchLen 144\r
-#define dsPrevMatch 148\r
-#define dsStrStart 156\r
-#define dsMatchStart 160\r
-#define dsLookahead 164\r
-#define dsPrevLen 168\r
-#define dsMaxChainLen 172\r
-#define dsGoodMatch 188\r
-#define dsNiceMatch 192\r
-\r
-#define window_size [ rcx + dsWSize]\r
-#define WMask [ rcx + dsWMask]\r
-#define window_ad [ rcx + dsWindow]\r
-#define prev_ad [ rcx + dsPrev]\r
-#define strstart [ rcx + dsStrStart]\r
-#define match_start [ rcx + dsMatchStart]\r
-#define Lookahead [ rcx + dsLookahead] //; 0ffffffffh on infozip\r
-#define prev_length [ rcx + dsPrevLen]\r
-#define max_chain_length [ rcx + dsMaxChainLen]\r
-#define good_match [ rcx + dsGoodMatch]\r
-#define nice_match [ rcx + dsNiceMatch]\r
-\r
-/*\r
-; windows:\r
-; parameter 1 in rcx(deflate state s), param 2 in rdx (cur match)\r
-\r
-; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and\r
-; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp\r
-;\r
-; All registers must be preserved across the call, except for\r
-; rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.\r
-\r
-;\r
-; gcc on macosx-linux:\r
-; see http://www.x86-64.org/documentation/abi-0.99.pdf\r
-; param 1 in rdi, param 2 in rsi\r
-; rbx, rsp, rbp, r12 to r15 must be preserved\r
-\r
-;;; Save registers that the compiler may be using, and adjust esp to\r
-;;; make room for our stack frame.\r
-\r
-\r
-;;; Retrieve the function arguments. r8d will hold cur_match\r
-;;; throughout the entire function. edx will hold the pointer to the\r
-;;; deflate_state structure during the function's setup (before\r
-;;; entering the main loop.\r
-\r
-; ms: parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)\r
-; mac: param 1 in rdi, param 2 rsi\r
-; this clear high 32 bits of r8, which can be garbage in both r8 and rdx\r
-*/\r
- mov [save_rbx],rbx\r
- mov [save_rbp],rbp\r
-\r
-\r
- mov rcx,rdi\r
-\r
- mov r8d,esi\r
-\r
-\r
- mov [save_r12],r12\r
- mov [save_r13],r13\r
- mov [save_r14],r14\r
- mov [save_r15],r15\r
-\r
-\r
-//;;; uInt wmask = s->w_mask;\r
-//;;; unsigned chain_length = s->max_chain_length;\r
-//;;; if (s->prev_length >= s->good_match) {\r
-//;;; chain_length >>= 2;\r
-//;;; }\r
-\r
-\r
- mov edi, prev_length\r
- mov esi, good_match\r
- mov eax, WMask\r
- mov ebx, max_chain_length\r
- cmp edi, esi\r
- jl LastMatchGood\r
- shr ebx, 2\r
-LastMatchGood:\r
-\r
-//;;; chainlen is decremented once beforehand so that the function can\r
-//;;; use the sign flag instead of the zero flag for the exit test.\r
-//;;; It is then shifted into the high word, to make room for the wmask\r
-//;;; value, which it will always accompany.\r
-\r
- dec ebx\r
- shl ebx, 16\r
- or ebx, eax\r
-\r
-//;;; on zlib only\r
-//;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;\r
-\r
-\r
-\r
- mov eax, nice_match\r
- mov [chainlenwmask], ebx\r
- mov r10d, Lookahead\r
- cmp r10d, eax\r
- cmovnl r10d, eax\r
- mov [nicematch],r10d\r
-\r
-\r
-\r
-//;;; register Bytef *scan = s->window + s->strstart;\r
- mov r10, window_ad\r
- mov ebp, strstart\r
- lea r13, [r10 + rbp]\r
-\r
-//;;; Determine how many bytes the scan ptr is off from being\r
-//;;; dword-aligned.\r
-\r
- mov r9,r13\r
- neg r13\r
- and r13,3\r
-\r
-//;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?\r
-//;;; s->strstart - (IPos)MAX_DIST(s) : NIL;\r
-\r
-\r
- mov eax, window_size\r
- sub eax, MIN_LOOKAHEAD\r
-\r
-\r
- xor edi,edi\r
- sub ebp, eax\r
-\r
- mov r11d, prev_length\r
-\r
- cmovng ebp,edi\r
-\r
-//;;; int best_len = s->prev_length;\r
-\r
-\r
-//;;; Store the sum of s->window + best_len in esi locally, and in esi.\r
-\r
- lea rsi,[r10+r11]\r
-\r
-//;;; register ush scan_start = *(ushf*)scan;\r
-//;;; register ush scan_end = *(ushf*)(scan+best_len-1);\r
-//;;; Posf *prev = s->prev;\r
-\r
- movzx r12d,word ptr [r9]\r
- movzx ebx, word ptr [r9 + r11 - 1]\r
-\r
- mov rdi, prev_ad\r
-\r
-//;;; Jump into the main loop.\r
-\r
- mov edx, [chainlenwmask]\r
-\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- jz LookupLoopIsZero\r
- \r
- \r
- \r
-LookupLoop1:\r
- and r8d, edx\r
-\r
- movzx r8d, word ptr [rdi + r8*2]\r
- cmp r8d, ebp\r
- jbe LeaveNow\r
- \r
- \r
- \r
- sub edx, 0x00010000\r
- BEFORE_JMP\r
- js LeaveNow\r
- AFTER_JMP\r
-\r
-LoopEntry1:\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- BEFORE_JMP\r
- jz LookupLoopIsZero\r
- AFTER_JMP\r
-\r
-LookupLoop2:\r
- and r8d, edx\r
-\r
- movzx r8d, word ptr [rdi + r8*2]\r
- cmp r8d, ebp\r
- BEFORE_JMP\r
- jbe LeaveNow\r
- AFTER_JMP\r
- sub edx, 0x00010000\r
- BEFORE_JMP\r
- js LeaveNow\r
- AFTER_JMP\r
-\r
-LoopEntry2:\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- BEFORE_JMP\r
- jz LookupLoopIsZero\r
- AFTER_JMP\r
-\r
-LookupLoop4:\r
- and r8d, edx\r
-\r
- movzx r8d, word ptr [rdi + r8*2]\r
- cmp r8d, ebp\r
- BEFORE_JMP\r
- jbe LeaveNow\r
- AFTER_JMP\r
- sub edx, 0x00010000\r
- BEFORE_JMP\r
- js LeaveNow\r
- AFTER_JMP\r
-\r
-LoopEntry4:\r
-\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- BEFORE_JMP\r
- jnz LookupLoop1\r
- jmp LookupLoopIsZero\r
- AFTER_JMP\r
-/*\r
-;;; do {\r
-;;; match = s->window + cur_match;\r
-;;; if (*(ushf*)(match+best_len-1) != scan_end ||\r
-;;; *(ushf*)match != scan_start) continue;\r
-;;; [...]\r
-;;; } while ((cur_match = prev[cur_match & wmask]) > limit\r
-;;; && --chain_length != 0);\r
-;;;\r
-;;; Here is the inner loop of the function. The function will spend the\r
-;;; majority of its time in this loop, and majority of that time will\r
-;;; be spent in the first ten instructions.\r
-;;;\r
-;;; Within this loop:\r
-;;; ebx = scanend\r
-;;; r8d = curmatch\r
-;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)\r
-;;; esi = windowbestlen - i.e., (window + bestlen)\r
-;;; edi = prev\r
-;;; ebp = limit\r
-*/\r
-.balign 16\r
-LookupLoop:\r
- and r8d, edx\r
-\r
- movzx r8d, word ptr [rdi + r8*2]\r
- cmp r8d, ebp\r
- BEFORE_JMP\r
- jbe LeaveNow\r
- AFTER_JMP\r
- sub edx, 0x00010000\r
- BEFORE_JMP\r
- js LeaveNow\r
- AFTER_JMP\r
-\r
-LoopEntry:\r
-\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- BEFORE_JMP\r
- jnz LookupLoop1\r
- AFTER_JMP\r
-LookupLoopIsZero:\r
- cmp r12w, word ptr [r10 + r8]\r
- BEFORE_JMP\r
- jnz LookupLoop1\r
- AFTER_JMP\r
-\r
-\r
-//;;; Store the current value of chainlen.\r
- mov [chainlenwmask], edx\r
-/*\r
-;;; Point edi to the string under scrutiny, and esi to the string we\r
-;;; are hoping to match it up with. In actuality, esi and edi are\r
-;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is\r
-;;; initialized to -(MAX_MATCH_8 - scanalign).\r
-*/\r
- lea rsi,[r8+r10]\r
- mov rdx, 0xfffffffffffffef8 //; -(MAX_MATCH_8)\r
- lea rsi, [rsi + r13 + 0x0108] //;MAX_MATCH_8]\r
- lea rdi, [r9 + r13 + 0x0108] //;MAX_MATCH_8]\r
-\r
- prefetcht1 [rsi+rdx]\r
- prefetcht1 [rdi+rdx]\r
-\r
-/*\r
-;;; Test the strings for equality, 8 bytes at a time. At the end,\r
-;;; adjust rdx so that it is offset to the exact byte that mismatched.\r
-;;;\r
-;;; We already know at this point that the first three bytes of the\r
-;;; strings match each other, and they can be safely passed over before\r
-;;; starting the compare loop. So what this code does is skip over 0-3\r
-;;; bytes, as much as necessary in order to dword-align the edi\r
-;;; pointer. (rsi will still be misaligned three times out of four.)\r
-;;;\r
-;;; It should be confessed that this loop usually does not represent\r
-;;; much of the total running time. Replacing it with a more\r
-;;; straightforward "rep cmpsb" would not drastically degrade\r
-;;; performance.\r
-*/\r
-\r
-LoopCmps:\r
- mov rax, [rsi + rdx]\r
- xor rax, [rdi + rdx]\r
- jnz LeaveLoopCmps\r
-\r
- mov rax, [rsi + rdx + 8]\r
- xor rax, [rdi + rdx + 8]\r
- jnz LeaveLoopCmps8\r
-\r
-\r
- mov rax, [rsi + rdx + 8+8]\r
- xor rax, [rdi + rdx + 8+8]\r
- jnz LeaveLoopCmps16\r
-\r
- add rdx,8+8+8\r
-\r
- BEFORE_JMP\r
- jnz LoopCmps\r
- jmp LenMaximum\r
- AFTER_JMP\r
- \r
-LeaveLoopCmps16: add rdx,8\r
-LeaveLoopCmps8: add rdx,8\r
-LeaveLoopCmps:\r
-\r
- test eax, 0x0000FFFF\r
- jnz LenLower\r
-\r
- test eax,0xffffffff\r
-\r
- jnz LenLower32\r
-\r
- add rdx,4\r
- shr rax,32\r
- or ax,ax\r
- BEFORE_JMP\r
- jnz LenLower\r
- AFTER_JMP\r
-\r
-LenLower32:\r
- shr eax,16\r
- add rdx,2\r
- \r
-LenLower: \r
- sub al, 1\r
- adc rdx, 0\r
-//;;; Calculate the length of the match. If it is longer than MAX_MATCH,\r
-//;;; then automatically accept it as the best possible match and leave.\r
-\r
- lea rax, [rdi + rdx]\r
- sub rax, r9\r
- cmp eax, MAX_MATCH\r
- BEFORE_JMP\r
- jge LenMaximum\r
- AFTER_JMP\r
-/*\r
-;;; If the length of the match is not longer than the best match we\r
-;;; have so far, then forget it and return to the lookup loop.\r
-;///////////////////////////////////\r
-*/\r
- cmp eax, r11d\r
- jg LongerMatch\r
-\r
- lea rsi,[r10+r11]\r
-\r
- mov rdi, prev_ad\r
- mov edx, [chainlenwmask]\r
- BEFORE_JMP\r
- jmp LookupLoop\r
- AFTER_JMP\r
-/*\r
-;;; s->match_start = cur_match;\r
-;;; best_len = len;\r
-;;; if (len >= nice_match) break;\r
-;;; scan_end = *(ushf*)(scan+best_len-1);\r
-*/\r
-LongerMatch:\r
- mov r11d, eax\r
- mov match_start, r8d\r
- cmp eax, [nicematch]\r
- BEFORE_JMP\r
- jge LeaveNow\r
- AFTER_JMP\r
-\r
- lea rsi,[r10+rax]\r
-\r
- movzx ebx, word ptr [r9 + rax - 1]\r
- mov rdi, prev_ad\r
- mov edx, [chainlenwmask]\r
- BEFORE_JMP\r
- jmp LookupLoop\r
- AFTER_JMP\r
-\r
-//;;; Accept the current string, with the maximum possible length.\r
-\r
-LenMaximum:\r
- mov r11d,MAX_MATCH\r
- mov match_start, r8d\r
-\r
-//;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;\r
-//;;; return s->lookahead;\r
-\r
-LeaveNow:\r
- mov eax, Lookahead\r
- cmp r11d, eax\r
- cmovng eax, r11d\r
-\r
-\r
-\r
-//;;; Restore the stack and return from whence we came.\r
-\r
-\r
-// mov rsi,[save_rsi]\r
-// mov rdi,[save_rdi]\r
- mov rbx,[save_rbx]\r
- mov rbp,[save_rbp]\r
- mov r12,[save_r12]\r
- mov r13,[save_r13]\r
- mov r14,[save_r14]\r
- mov r15,[save_r15]\r
-\r
-\r
- ret 0\r
-//; please don't remove this string !\r
-//; Your can freely use gvmat64 in any free or commercial app\r
-//; but it is far better don't remove the string in the binary!\r
- // db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0\r
-\r
-\r
-match_init:\r
- ret 0\r
-\r
-\r
+++ /dev/null
-See infback9.h for what this is and how to use it.
+++ /dev/null
-/* infback9.c -- inflate deflate64 data using a call-back interface
- * Copyright (C) 1995-2008 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "infback9.h"
-#include "inftree9.h"
-#include "inflate9.h"
-
-#define WSIZE 65536UL
-
-/*
- strm provides memory allocation functions in zalloc and zfree, or
- Z_NULL to use the library memory allocation functions.
-
- window is a user-supplied window and output buffer that is 64K bytes.
- */
-int ZEXPORT inflateBack9Init_(strm, window, version, stream_size)
-z_stream FAR *strm;
-unsigned char FAR *window;
-const char *version;
-int stream_size;
-{
- struct inflate_state FAR *state;
-
- if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
- stream_size != (int)(sizeof(z_stream)))
- return Z_VERSION_ERROR;
- if (strm == Z_NULL || window == Z_NULL)
- return Z_STREAM_ERROR;
- strm->msg = Z_NULL; /* in case we return an error */
- if (strm->zalloc == (alloc_func)0) {
- strm->zalloc = zcalloc;
- strm->opaque = (voidpf)0;
- }
- if (strm->zfree == (free_func)0) strm->zfree = zcfree;
- state = (struct inflate_state FAR *)ZALLOC(strm, 1,
- sizeof(struct inflate_state));
- if (state == Z_NULL) return Z_MEM_ERROR;
- Tracev((stderr, "inflate: allocated\n"));
- strm->state = (voidpf)state;
- state->window = window;
- return Z_OK;
-}
-
-/*
- Build and output length and distance decoding tables for fixed code
- decoding.
- */
-#ifdef MAKEFIXED
-#include <stdio.h>
-
-void makefixed9(void)
-{
- unsigned sym, bits, low, size;
- code *next, *lenfix, *distfix;
- struct inflate_state state;
- code fixed[544];
-
- /* literal/length table */
- sym = 0;
- while (sym < 144) state.lens[sym++] = 8;
- while (sym < 256) state.lens[sym++] = 9;
- while (sym < 280) state.lens[sym++] = 7;
- while (sym < 288) state.lens[sym++] = 8;
- next = fixed;
- lenfix = next;
- bits = 9;
- inflate_table9(LENS, state.lens, 288, &(next), &(bits), state.work);
-
- /* distance table */
- sym = 0;
- while (sym < 32) state.lens[sym++] = 5;
- distfix = next;
- bits = 5;
- inflate_table9(DISTS, state.lens, 32, &(next), &(bits), state.work);
-
- /* write tables */
- puts(" /* inffix9.h -- table for decoding deflate64 fixed codes");
- puts(" * Generated automatically by makefixed9().");
- puts(" */");
- puts("");
- puts(" /* WARNING: this file should *not* be used by applications.");
- puts(" It is part of the implementation of this library and is");
- puts(" subject to change. Applications should only use zlib.h.");
- puts(" */");
- puts("");
- size = 1U << 9;
- printf(" static const code lenfix[%u] = {", size);
- low = 0;
- for (;;) {
- if ((low % 6) == 0) printf("\n ");
- printf("{%u,%u,%d}", lenfix[low].op, lenfix[low].bits,
- lenfix[low].val);
- if (++low == size) break;
- putchar(',');
- }
- puts("\n };");
- size = 1U << 5;
- printf("\n static const code distfix[%u] = {", size);
- low = 0;
- for (;;) {
- if ((low % 5) == 0) printf("\n ");
- printf("{%u,%u,%d}", distfix[low].op, distfix[low].bits,
- distfix[low].val);
- if (++low == size) break;
- putchar(',');
- }
- puts("\n };");
-}
-#endif /* MAKEFIXED */
-
-/* Macros for inflateBack(): */
-
-/* Clear the input bit accumulator */
-#define INITBITS() \
- do { \
- hold = 0; \
- bits = 0; \
- } while (0)
-
-/* Assure that some input is available. If input is requested, but denied,
- then return a Z_BUF_ERROR from inflateBack(). */
-#define PULL() \
- do { \
- if (have == 0) { \
- have = in(in_desc, &next); \
- if (have == 0) { \
- next = Z_NULL; \
- ret = Z_BUF_ERROR; \
- goto inf_leave; \
- } \
- } \
- } while (0)
-
-/* Get a byte of input into the bit accumulator, or return from inflateBack()
- with an error if there is no input available. */
-#define PULLBYTE() \
- do { \
- PULL(); \
- have--; \
- hold += (unsigned long)(*next++) << bits; \
- bits += 8; \
- } while (0)
-
-/* Assure that there are at least n bits in the bit accumulator. If there is
- not enough available input to do that, then return from inflateBack() with
- an error. */
-#define NEEDBITS(n) \
- do { \
- while (bits < (unsigned)(n)) \
- PULLBYTE(); \
- } while (0)
-
-/* Return the low n bits of the bit accumulator (n <= 16) */
-#define BITS(n) \
- ((unsigned)hold & ((1U << (n)) - 1))
-
-/* Remove n bits from the bit accumulator */
-#define DROPBITS(n) \
- do { \
- hold >>= (n); \
- bits -= (unsigned)(n); \
- } while (0)
-
-/* Remove zero to seven bits as needed to go to a byte boundary */
-#define BYTEBITS() \
- do { \
- hold >>= bits & 7; \
- bits -= bits & 7; \
- } while (0)
-
-/* Assure that some output space is available, by writing out the window
- if it's full. If the write fails, return from inflateBack() with a
- Z_BUF_ERROR. */
-#define ROOM() \
- do { \
- if (left == 0) { \
- put = window; \
- left = WSIZE; \
- wrap = 1; \
- if (out(out_desc, put, (unsigned)left)) { \
- ret = Z_BUF_ERROR; \
- goto inf_leave; \
- } \
- } \
- } while (0)
-
-/*
- strm provides the memory allocation functions and window buffer on input,
- and provides information on the unused input on return. For Z_DATA_ERROR
- returns, strm will also provide an error message.
-
- in() and out() are the call-back input and output functions. When
- inflateBack() needs more input, it calls in(). When inflateBack() has
- filled the window with output, or when it completes with data in the
- window, it calls out() to write out the data. The application must not
- change the provided input until in() is called again or inflateBack()
- returns. The application must not change the window/output buffer until
- inflateBack() returns.
-
- in() and out() are called with a descriptor parameter provided in the
- inflateBack() call. This parameter can be a structure that provides the
- information required to do the read or write, as well as accumulated
- information on the input and output such as totals and check values.
-
- in() should return zero on failure. out() should return non-zero on
- failure. If either in() or out() fails, than inflateBack() returns a
- Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it
- was in() or out() that caused in the error. Otherwise, inflateBack()
- returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format
- error, or Z_MEM_ERROR if it could not allocate memory for the state.
- inflateBack() can also return Z_STREAM_ERROR if the input parameters
- are not correct, i.e. strm is Z_NULL or the state was not initialized.
- */
-int ZEXPORT inflateBack9(strm, in, in_desc, out, out_desc)
-z_stream FAR *strm;
-in_func in;
-void FAR *in_desc;
-out_func out;
-void FAR *out_desc;
-{
- struct inflate_state FAR *state;
- z_const unsigned char FAR *next; /* next input */
- unsigned char FAR *put; /* next output */
- unsigned have; /* available input */
- unsigned long left; /* available output */
- inflate_mode mode; /* current inflate mode */
- int lastblock; /* true if processing last block */
- int wrap; /* true if the window has wrapped */
- unsigned char FAR *window; /* allocated sliding window, if needed */
- unsigned long hold; /* bit buffer */
- unsigned bits; /* bits in bit buffer */
- unsigned extra; /* extra bits needed */
- unsigned long length; /* literal or length of data to copy */
- unsigned long offset; /* distance back to copy string from */
- unsigned long copy; /* number of stored or match bytes to copy */
- unsigned char FAR *from; /* where to copy match bytes from */
- code const FAR *lencode; /* starting table for length/literal codes */
- code const FAR *distcode; /* starting table for distance codes */
- unsigned lenbits; /* index bits for lencode */
- unsigned distbits; /* index bits for distcode */
- code here; /* current decoding table entry */
- code last; /* parent table entry */
- unsigned len; /* length to copy for repeats, bits to drop */
- int ret; /* return code */
- static const unsigned short order[19] = /* permutation of code lengths */
- {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-#include "inffix9.h"
-
- /* Check that the strm exists and that the state was initialized */
- if (strm == Z_NULL || strm->state == Z_NULL)
- return Z_STREAM_ERROR;
- state = (struct inflate_state FAR *)strm->state;
-
- /* Reset the state */
- strm->msg = Z_NULL;
- mode = TYPE;
- lastblock = 0;
- wrap = 0;
- window = state->window;
- next = strm->next_in;
- have = next != Z_NULL ? strm->avail_in : 0;
- hold = 0;
- bits = 0;
- put = window;
- left = WSIZE;
- lencode = Z_NULL;
- distcode = Z_NULL;
-
- /* Inflate until end of block marked as last */
- for (;;)
- switch (mode) {
- case TYPE:
- /* determine and dispatch block type */
- if (lastblock) {
- BYTEBITS();
- mode = DONE;
- break;
- }
- NEEDBITS(3);
- lastblock = BITS(1);
- DROPBITS(1);
- switch (BITS(2)) {
- case 0: /* stored block */
- Tracev((stderr, "inflate: stored block%s\n",
- lastblock ? " (last)" : ""));
- mode = STORED;
- break;
- case 1: /* fixed block */
- lencode = lenfix;
- lenbits = 9;
- distcode = distfix;
- distbits = 5;
- Tracev((stderr, "inflate: fixed codes block%s\n",
- lastblock ? " (last)" : ""));
- mode = LEN; /* decode codes */
- break;
- case 2: /* dynamic block */
- Tracev((stderr, "inflate: dynamic codes block%s\n",
- lastblock ? " (last)" : ""));
- mode = TABLE;
- break;
- case 3:
- strm->msg = (char *)"invalid block type";
- mode = BAD;
- }
- DROPBITS(2);
- break;
-
- case STORED:
- /* get and verify stored block length */
- BYTEBITS(); /* go to byte boundary */
- NEEDBITS(32);
- if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
- strm->msg = (char *)"invalid stored block lengths";
- mode = BAD;
- break;
- }
- length = (unsigned)hold & 0xffff;
- Tracev((stderr, "inflate: stored length %lu\n",
- length));
- INITBITS();
-
- /* copy stored block from input to output */
- while (length != 0) {
- copy = length;
- PULL();
- ROOM();
- if (copy > have) copy = have;
- if (copy > left) copy = left;
- zmemcpy(put, next, copy);
- have -= copy;
- next += copy;
- left -= copy;
- put += copy;
- length -= copy;
- }
- Tracev((stderr, "inflate: stored end\n"));
- mode = TYPE;
- break;
-
- case TABLE:
- /* get dynamic table entries descriptor */
- NEEDBITS(14);
- state->nlen = BITS(5) + 257;
- DROPBITS(5);
- state->ndist = BITS(5) + 1;
- DROPBITS(5);
- state->ncode = BITS(4) + 4;
- DROPBITS(4);
- if (state->nlen > 286) {
- strm->msg = (char *)"too many length symbols";
- mode = BAD;
- break;
- }
- Tracev((stderr, "inflate: table sizes ok\n"));
-
- /* get code length code lengths (not a typo) */
- state->have = 0;
- while (state->have < state->ncode) {
- NEEDBITS(3);
- state->lens[order[state->have++]] = (unsigned short)BITS(3);
- DROPBITS(3);
- }
- while (state->have < 19)
- state->lens[order[state->have++]] = 0;
- state->next = state->codes;
- lencode = (code const FAR *)(state->next);
- lenbits = 7;
- ret = inflate_table9(CODES, state->lens, 19, &(state->next),
- &(lenbits), state->work);
- if (ret) {
- strm->msg = (char *)"invalid code lengths set";
- mode = BAD;
- break;
- }
- Tracev((stderr, "inflate: code lengths ok\n"));
-
- /* get length and distance code code lengths */
- state->have = 0;
- while (state->have < state->nlen + state->ndist) {
- for (;;) {
- here = lencode[BITS(lenbits)];
- if ((unsigned)(here.bits) <= bits) break;
- PULLBYTE();
- }
- if (here.val < 16) {
- NEEDBITS(here.bits);
- DROPBITS(here.bits);
- state->lens[state->have++] = here.val;
- }
- else {
- if (here.val == 16) {
- NEEDBITS(here.bits + 2);
- DROPBITS(here.bits);
- if (state->have == 0) {
- strm->msg = (char *)"invalid bit length repeat";
- mode = BAD;
- break;
- }
- len = (unsigned)(state->lens[state->have - 1]);
- copy = 3 + BITS(2);
- DROPBITS(2);
- }
- else if (here.val == 17) {
- NEEDBITS(here.bits + 3);
- DROPBITS(here.bits);
- len = 0;
- copy = 3 + BITS(3);
- DROPBITS(3);
- }
- else {
- NEEDBITS(here.bits + 7);
- DROPBITS(here.bits);
- len = 0;
- copy = 11 + BITS(7);
- DROPBITS(7);
- }
- if (state->have + copy > state->nlen + state->ndist) {
- strm->msg = (char *)"invalid bit length repeat";
- mode = BAD;
- break;
- }
- while (copy--)
- state->lens[state->have++] = (unsigned short)len;
- }
- }
-
- /* handle error breaks in while */
- if (mode == BAD) break;
-
- /* check for end-of-block code (better have one) */
- if (state->lens[256] == 0) {
- strm->msg = (char *)"invalid code -- missing end-of-block";
- mode = BAD;
- break;
- }
-
- /* build code tables -- note: do not change the lenbits or distbits
- values here (9 and 6) without reading the comments in inftree9.h
- concerning the ENOUGH constants, which depend on those values */
- state->next = state->codes;
- lencode = (code const FAR *)(state->next);
- lenbits = 9;
- ret = inflate_table9(LENS, state->lens, state->nlen,
- &(state->next), &(lenbits), state->work);
- if (ret) {
- strm->msg = (char *)"invalid literal/lengths set";
- mode = BAD;
- break;
- }
- distcode = (code const FAR *)(state->next);
- distbits = 6;
- ret = inflate_table9(DISTS, state->lens + state->nlen,
- state->ndist, &(state->next), &(distbits),
- state->work);
- if (ret) {
- strm->msg = (char *)"invalid distances set";
- mode = BAD;
- break;
- }
- Tracev((stderr, "inflate: codes ok\n"));
- mode = LEN;
-
- case LEN:
- /* get a literal, length, or end-of-block code */
- for (;;) {
- here = lencode[BITS(lenbits)];
- if ((unsigned)(here.bits) <= bits) break;
- PULLBYTE();
- }
- if (here.op && (here.op & 0xf0) == 0) {
- last = here;
- for (;;) {
- here = lencode[last.val +
- (BITS(last.bits + last.op) >> last.bits)];
- if ((unsigned)(last.bits + here.bits) <= bits) break;
- PULLBYTE();
- }
- DROPBITS(last.bits);
- }
- DROPBITS(here.bits);
- length = (unsigned)here.val;
-
- /* process literal */
- if (here.op == 0) {
- Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
- "inflate: literal '%c'\n" :
- "inflate: literal 0x%02x\n", here.val));
- ROOM();
- *put++ = (unsigned char)(length);
- left--;
- mode = LEN;
- break;
- }
-
- /* process end of block */
- if (here.op & 32) {
- Tracevv((stderr, "inflate: end of block\n"));
- mode = TYPE;
- break;
- }
-
- /* invalid code */
- if (here.op & 64) {
- strm->msg = (char *)"invalid literal/length code";
- mode = BAD;
- break;
- }
-
- /* length code -- get extra bits, if any */
- extra = (unsigned)(here.op) & 31;
- if (extra != 0) {
- NEEDBITS(extra);
- length += BITS(extra);
- DROPBITS(extra);
- }
- Tracevv((stderr, "inflate: length %lu\n", length));
-
- /* get distance code */
- for (;;) {
- here = distcode[BITS(distbits)];
- if ((unsigned)(here.bits) <= bits) break;
- PULLBYTE();
- }
- if ((here.op & 0xf0) == 0) {
- last = here;
- for (;;) {
- here = distcode[last.val +
- (BITS(last.bits + last.op) >> last.bits)];
- if ((unsigned)(last.bits + here.bits) <= bits) break;
- PULLBYTE();
- }
- DROPBITS(last.bits);
- }
- DROPBITS(here.bits);
- if (here.op & 64) {
- strm->msg = (char *)"invalid distance code";
- mode = BAD;
- break;
- }
- offset = (unsigned)here.val;
-
- /* get distance extra bits, if any */
- extra = (unsigned)(here.op) & 15;
- if (extra != 0) {
- NEEDBITS(extra);
- offset += BITS(extra);
- DROPBITS(extra);
- }
- if (offset > WSIZE - (wrap ? 0: left)) {
- strm->msg = (char *)"invalid distance too far back";
- mode = BAD;
- break;
- }
- Tracevv((stderr, "inflate: distance %lu\n", offset));
-
- /* copy match from window to output */
- do {
- ROOM();
- copy = WSIZE - offset;
- if (copy < left) {
- from = put + copy;
- copy = left - copy;
- }
- else {
- from = put - offset;
- copy = left;
- }
- if (copy > length) copy = length;
- length -= copy;
- left -= copy;
- do {
- *put++ = *from++;
- } while (--copy);
- } while (length != 0);
- break;
-
- case DONE:
- /* inflate stream terminated properly -- write leftover output */
- ret = Z_STREAM_END;
- if (left < WSIZE) {
- if (out(out_desc, window, (unsigned)(WSIZE - left)))
- ret = Z_BUF_ERROR;
- }
- goto inf_leave;
-
- case BAD:
- ret = Z_DATA_ERROR;
- goto inf_leave;
-
- default: /* can't happen, but makes compilers happy */
- ret = Z_STREAM_ERROR;
- goto inf_leave;
- }
-
- /* Return unused input */
- inf_leave:
- strm->next_in = next;
- strm->avail_in = have;
- return ret;
-}
-
-int ZEXPORT inflateBack9End(strm)
-z_stream FAR *strm;
-{
- if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
- return Z_STREAM_ERROR;
- ZFREE(strm, strm->state);
- strm->state = Z_NULL;
- Tracev((stderr, "inflate: end\n"));
- return Z_OK;
-}
+++ /dev/null
-/* infback9.h -- header for using inflateBack9 functions
- * Copyright (C) 2003 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- * This header file and associated patches provide a decoder for PKWare's
- * undocumented deflate64 compression method (method 9). Use with infback9.c,
- * inftree9.h, inftree9.c, and inffix9.h. These patches are not supported.
- * This should be compiled with zlib, since it uses zutil.h and zutil.o.
- * This code has not yet been tested on 16-bit architectures. See the
- * comments in zlib.h for inflateBack() usage. These functions are used
- * identically, except that there is no windowBits parameter, and a 64K
- * window must be provided. Also if int's are 16 bits, then a zero for
- * the third parameter of the "out" function actually means 65536UL.
- * zlib.h must be included before this header file.
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-ZEXTERN int ZEXPORT inflateBack9 OF((z_stream FAR *strm,
- in_func in, void FAR *in_desc,
- out_func out, void FAR *out_desc));
-ZEXTERN int ZEXPORT inflateBack9End OF((z_stream FAR *strm));
-ZEXTERN int ZEXPORT inflateBack9Init_ OF((z_stream FAR *strm,
- unsigned char FAR *window,
- const char *version,
- int stream_size));
-#define inflateBack9Init(strm, window) \
- inflateBack9Init_((strm), (window), \
- ZLIB_VERSION, sizeof(z_stream))
-
-#ifdef __cplusplus
-}
-#endif
+++ /dev/null
- /* inffix9.h -- table for decoding deflate64 fixed codes
- * Generated automatically by makefixed9().
- */
-
- /* WARNING: this file should *not* be used by applications.
- It is part of the implementation of this library and is
- subject to change. Applications should only use zlib.h.
- */
-
- static const code lenfix[512] = {
- {96,7,0},{0,8,80},{0,8,16},{132,8,115},{130,7,31},{0,8,112},
- {0,8,48},{0,9,192},{128,7,10},{0,8,96},{0,8,32},{0,9,160},
- {0,8,0},{0,8,128},{0,8,64},{0,9,224},{128,7,6},{0,8,88},
- {0,8,24},{0,9,144},{131,7,59},{0,8,120},{0,8,56},{0,9,208},
- {129,7,17},{0,8,104},{0,8,40},{0,9,176},{0,8,8},{0,8,136},
- {0,8,72},{0,9,240},{128,7,4},{0,8,84},{0,8,20},{133,8,227},
- {131,7,43},{0,8,116},{0,8,52},{0,9,200},{129,7,13},{0,8,100},
- {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},
- {128,7,8},{0,8,92},{0,8,28},{0,9,152},{132,7,83},{0,8,124},
- {0,8,60},{0,9,216},{130,7,23},{0,8,108},{0,8,44},{0,9,184},
- {0,8,12},{0,8,140},{0,8,76},{0,9,248},{128,7,3},{0,8,82},
- {0,8,18},{133,8,163},{131,7,35},{0,8,114},{0,8,50},{0,9,196},
- {129,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},{0,8,130},
- {0,8,66},{0,9,228},{128,7,7},{0,8,90},{0,8,26},{0,9,148},
- {132,7,67},{0,8,122},{0,8,58},{0,9,212},{130,7,19},{0,8,106},
- {0,8,42},{0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},
- {128,7,5},{0,8,86},{0,8,22},{65,8,0},{131,7,51},{0,8,118},
- {0,8,54},{0,9,204},{129,7,15},{0,8,102},{0,8,38},{0,9,172},
- {0,8,6},{0,8,134},{0,8,70},{0,9,236},{128,7,9},{0,8,94},
- {0,8,30},{0,9,156},{132,7,99},{0,8,126},{0,8,62},{0,9,220},
- {130,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142},
- {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{133,8,131},
- {130,7,31},{0,8,113},{0,8,49},{0,9,194},{128,7,10},{0,8,97},
- {0,8,33},{0,9,162},{0,8,1},{0,8,129},{0,8,65},{0,9,226},
- {128,7,6},{0,8,89},{0,8,25},{0,9,146},{131,7,59},{0,8,121},
- {0,8,57},{0,9,210},{129,7,17},{0,8,105},{0,8,41},{0,9,178},
- {0,8,9},{0,8,137},{0,8,73},{0,9,242},{128,7,4},{0,8,85},
- {0,8,21},{144,8,3},{131,7,43},{0,8,117},{0,8,53},{0,9,202},
- {129,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},
- {0,8,69},{0,9,234},{128,7,8},{0,8,93},{0,8,29},{0,9,154},
- {132,7,83},{0,8,125},{0,8,61},{0,9,218},{130,7,23},{0,8,109},
- {0,8,45},{0,9,186},{0,8,13},{0,8,141},{0,8,77},{0,9,250},
- {128,7,3},{0,8,83},{0,8,19},{133,8,195},{131,7,35},{0,8,115},
- {0,8,51},{0,9,198},{129,7,11},{0,8,99},{0,8,35},{0,9,166},
- {0,8,3},{0,8,131},{0,8,67},{0,9,230},{128,7,7},{0,8,91},
- {0,8,27},{0,9,150},{132,7,67},{0,8,123},{0,8,59},{0,9,214},
- {130,7,19},{0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},
- {0,8,75},{0,9,246},{128,7,5},{0,8,87},{0,8,23},{77,8,0},
- {131,7,51},{0,8,119},{0,8,55},{0,9,206},{129,7,15},{0,8,103},
- {0,8,39},{0,9,174},{0,8,7},{0,8,135},{0,8,71},{0,9,238},
- {128,7,9},{0,8,95},{0,8,31},{0,9,158},{132,7,99},{0,8,127},
- {0,8,63},{0,9,222},{130,7,27},{0,8,111},{0,8,47},{0,9,190},
- {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},
- {0,8,16},{132,8,115},{130,7,31},{0,8,112},{0,8,48},{0,9,193},
- {128,7,10},{0,8,96},{0,8,32},{0,9,161},{0,8,0},{0,8,128},
- {0,8,64},{0,9,225},{128,7,6},{0,8,88},{0,8,24},{0,9,145},
- {131,7,59},{0,8,120},{0,8,56},{0,9,209},{129,7,17},{0,8,104},
- {0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},{0,9,241},
- {128,7,4},{0,8,84},{0,8,20},{133,8,227},{131,7,43},{0,8,116},
- {0,8,52},{0,9,201},{129,7,13},{0,8,100},{0,8,36},{0,9,169},
- {0,8,4},{0,8,132},{0,8,68},{0,9,233},{128,7,8},{0,8,92},
- {0,8,28},{0,9,153},{132,7,83},{0,8,124},{0,8,60},{0,9,217},
- {130,7,23},{0,8,108},{0,8,44},{0,9,185},{0,8,12},{0,8,140},
- {0,8,76},{0,9,249},{128,7,3},{0,8,82},{0,8,18},{133,8,163},
- {131,7,35},{0,8,114},{0,8,50},{0,9,197},{129,7,11},{0,8,98},
- {0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229},
- {128,7,7},{0,8,90},{0,8,26},{0,9,149},{132,7,67},{0,8,122},
- {0,8,58},{0,9,213},{130,7,19},{0,8,106},{0,8,42},{0,9,181},
- {0,8,10},{0,8,138},{0,8,74},{0,9,245},{128,7,5},{0,8,86},
- {0,8,22},{65,8,0},{131,7,51},{0,8,118},{0,8,54},{0,9,205},
- {129,7,15},{0,8,102},{0,8,38},{0,9,173},{0,8,6},{0,8,134},
- {0,8,70},{0,9,237},{128,7,9},{0,8,94},{0,8,30},{0,9,157},
- {132,7,99},{0,8,126},{0,8,62},{0,9,221},{130,7,27},{0,8,110},
- {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},
- {96,7,0},{0,8,81},{0,8,17},{133,8,131},{130,7,31},{0,8,113},
- {0,8,49},{0,9,195},{128,7,10},{0,8,97},{0,8,33},{0,9,163},
- {0,8,1},{0,8,129},{0,8,65},{0,9,227},{128,7,6},{0,8,89},
- {0,8,25},{0,9,147},{131,7,59},{0,8,121},{0,8,57},{0,9,211},
- {129,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},{0,8,137},
- {0,8,73},{0,9,243},{128,7,4},{0,8,85},{0,8,21},{144,8,3},
- {131,7,43},{0,8,117},{0,8,53},{0,9,203},{129,7,13},{0,8,101},
- {0,8,37},{0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},
- {128,7,8},{0,8,93},{0,8,29},{0,9,155},{132,7,83},{0,8,125},
- {0,8,61},{0,9,219},{130,7,23},{0,8,109},{0,8,45},{0,9,187},
- {0,8,13},{0,8,141},{0,8,77},{0,9,251},{128,7,3},{0,8,83},
- {0,8,19},{133,8,195},{131,7,35},{0,8,115},{0,8,51},{0,9,199},
- {129,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131},
- {0,8,67},{0,9,231},{128,7,7},{0,8,91},{0,8,27},{0,9,151},
- {132,7,67},{0,8,123},{0,8,59},{0,9,215},{130,7,19},{0,8,107},
- {0,8,43},{0,9,183},{0,8,11},{0,8,139},{0,8,75},{0,9,247},
- {128,7,5},{0,8,87},{0,8,23},{77,8,0},{131,7,51},{0,8,119},
- {0,8,55},{0,9,207},{129,7,15},{0,8,103},{0,8,39},{0,9,175},
- {0,8,7},{0,8,135},{0,8,71},{0,9,239},{128,7,9},{0,8,95},
- {0,8,31},{0,9,159},{132,7,99},{0,8,127},{0,8,63},{0,9,223},
- {130,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},
- {0,8,79},{0,9,255}
- };
-
- static const code distfix[32] = {
- {128,5,1},{135,5,257},{131,5,17},{139,5,4097},{129,5,5},
- {137,5,1025},{133,5,65},{141,5,16385},{128,5,3},{136,5,513},
- {132,5,33},{140,5,8193},{130,5,9},{138,5,2049},{134,5,129},
- {142,5,32769},{128,5,2},{135,5,385},{131,5,25},{139,5,6145},
- {129,5,7},{137,5,1537},{133,5,97},{141,5,24577},{128,5,4},
- {136,5,769},{132,5,49},{140,5,12289},{130,5,13},{138,5,3073},
- {134,5,193},{142,5,49153}
- };
+++ /dev/null
-/* inflate9.h -- internal inflate state definition
- * Copyright (C) 1995-2003 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-/* Possible inflate modes between inflate() calls */
-typedef enum {
- TYPE, /* i: waiting for type bits, including last-flag bit */
- STORED, /* i: waiting for stored size (length and complement) */
- TABLE, /* i: waiting for dynamic block table lengths */
- LEN, /* i: waiting for length/lit code */
- DONE, /* finished check, done -- remain here until reset */
- BAD /* got a data error -- remain here until reset */
-} inflate_mode;
-
-/*
- State transitions between above modes -
-
- (most modes can go to the BAD mode -- not shown for clarity)
-
- Read deflate blocks:
- TYPE -> STORED or TABLE or LEN or DONE
- STORED -> TYPE
- TABLE -> LENLENS -> CODELENS -> LEN
- Read deflate codes:
- LEN -> LEN or TYPE
- */
-
-/* state maintained between inflate() calls. Approximately 7K bytes. */
-struct inflate_state {
- /* sliding window */
- unsigned char FAR *window; /* allocated sliding window, if needed */
- /* dynamic table building */
- unsigned ncode; /* number of code length code lengths */
- unsigned nlen; /* number of length code lengths */
- unsigned ndist; /* number of distance code lengths */
- unsigned have; /* number of code lengths in lens[] */
- code FAR *next; /* next available space in codes[] */
- unsigned short lens[320]; /* temporary storage for code lengths */
- unsigned short work[288]; /* work area for code table building */
- code codes[ENOUGH]; /* space for code tables */
-};
+++ /dev/null
-/* inftree9.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2013 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "inftree9.h"
-
-#define MAXBITS 15
-
-const char inflate9_copyright[] =
- " inflate9 1.2.8 Copyright 1995-2013 Mark Adler ";
-/*
- If you use the zlib library in a product, an acknowledgment is welcome
- in the documentation of your product. If for some reason you cannot
- include such an acknowledgment, I would appreciate that you keep this
- copyright string in the executable of your product.
- */
-
-/*
- Build a set of tables to decode the provided canonical Huffman code.
- The code lengths are lens[0..codes-1]. The result starts at *table,
- whose indices are 0..2^bits-1. work is a writable array of at least
- lens shorts, which is used as a work area. type is the type of code
- to be generated, CODES, LENS, or DISTS. On return, zero is success,
- -1 is an invalid code, and +1 means that ENOUGH isn't enough. table
- on return points to the next available entry's address. bits is the
- requested root table index bits, and on return it is the actual root
- table index bits. It will differ if the request is greater than the
- longest code or if it is less than the shortest code.
- */
-int inflate_table9(type, lens, codes, table, bits, work)
-codetype type;
-unsigned short FAR *lens;
-unsigned codes;
-code FAR * FAR *table;
-unsigned FAR *bits;
-unsigned short FAR *work;
-{
- unsigned len; /* a code's length in bits */
- unsigned sym; /* index of code symbols */
- unsigned min, max; /* minimum and maximum code lengths */
- unsigned root; /* number of index bits for root table */
- unsigned curr; /* number of index bits for current table */
- unsigned drop; /* code bits to drop for sub-table */
- int left; /* number of prefix codes available */
- unsigned used; /* code entries in table used */
- unsigned huff; /* Huffman code */
- unsigned incr; /* for incrementing code, index */
- unsigned fill; /* index for replicating entries */
- unsigned low; /* low bits for current root entry */
- unsigned mask; /* mask for low root bits */
- code this; /* table entry for duplication */
- code FAR *next; /* next available space in table */
- const unsigned short FAR *base; /* base value table to use */
- const unsigned short FAR *extra; /* extra bits table to use */
- int end; /* use base and extra for symbol > end */
- unsigned short count[MAXBITS+1]; /* number of codes of each length */
- unsigned short offs[MAXBITS+1]; /* offsets in table for each length */
- static const unsigned short lbase[31] = { /* Length codes 257..285 base */
- 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17,
- 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115,
- 131, 163, 195, 227, 3, 0, 0};
- static const unsigned short lext[31] = { /* Length codes 257..285 extra */
- 128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
- 130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
- 133, 133, 133, 133, 144, 72, 78};
- static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
- 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
- 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,
- 4097, 6145, 8193, 12289, 16385, 24577, 32769, 49153};
- static const unsigned short dext[32] = { /* Distance codes 0..31 extra */
- 128, 128, 128, 128, 129, 129, 130, 130, 131, 131, 132, 132,
- 133, 133, 134, 134, 135, 135, 136, 136, 137, 137, 138, 138,
- 139, 139, 140, 140, 141, 141, 142, 142};
-
- /*
- Process a set of code lengths to create a canonical Huffman code. The
- code lengths are lens[0..codes-1]. Each length corresponds to the
- symbols 0..codes-1. The Huffman code is generated by first sorting the
- symbols by length from short to long, and retaining the symbol order
- for codes with equal lengths. Then the code starts with all zero bits
- for the first code of the shortest length, and the codes are integer
- increments for the same length, and zeros are appended as the length
- increases. For the deflate format, these bits are stored backwards
- from their more natural integer increment ordering, and so when the
- decoding tables are built in the large loop below, the integer codes
- are incremented backwards.
-
- This routine assumes, but does not check, that all of the entries in
- lens[] are in the range 0..MAXBITS. The caller must assure this.
- 1..MAXBITS is interpreted as that code length. zero means that that
- symbol does not occur in this code.
-
- The codes are sorted by computing a count of codes for each length,
- creating from that a table of starting indices for each length in the
- sorted table, and then entering the symbols in order in the sorted
- table. The sorted table is work[], with that space being provided by
- the caller.
-
- The length counts are used for other purposes as well, i.e. finding
- the minimum and maximum length codes, determining if there are any
- codes at all, checking for a valid set of lengths, and looking ahead
- at length counts to determine sub-table sizes when building the
- decoding tables.
- */
-
- /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
- for (len = 0; len <= MAXBITS; len++)
- count[len] = 0;
- for (sym = 0; sym < codes; sym++)
- count[lens[sym]]++;
-
- /* bound code lengths, force root to be within code lengths */
- root = *bits;
- for (max = MAXBITS; max >= 1; max--)
- if (count[max] != 0) break;
- if (root > max) root = max;
- if (max == 0) return -1; /* no codes! */
- for (min = 1; min <= MAXBITS; min++)
- if (count[min] != 0) break;
- if (root < min) root = min;
-
- /* check for an over-subscribed or incomplete set of lengths */
- left = 1;
- for (len = 1; len <= MAXBITS; len++) {
- left <<= 1;
- left -= count[len];
- if (left < 0) return -1; /* over-subscribed */
- }
- if (left > 0 && (type == CODES || max != 1))
- return -1; /* incomplete set */
-
- /* generate offsets into symbol table for each length for sorting */
- offs[1] = 0;
- for (len = 1; len < MAXBITS; len++)
- offs[len + 1] = offs[len] + count[len];
-
- /* sort symbols by length, by symbol order within each length */
- for (sym = 0; sym < codes; sym++)
- if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym;
-
- /*
- Create and fill in decoding tables. In this loop, the table being
- filled is at next and has curr index bits. The code being used is huff
- with length len. That code is converted to an index by dropping drop
- bits off of the bottom. For codes where len is less than drop + curr,
- those top drop + curr - len bits are incremented through all values to
- fill the table with replicated entries.
-
- root is the number of index bits for the root table. When len exceeds
- root, sub-tables are created pointed to by the root entry with an index
- of the low root bits of huff. This is saved in low to check for when a
- new sub-table should be started. drop is zero when the root table is
- being filled, and drop is root when sub-tables are being filled.
-
- When a new sub-table is needed, it is necessary to look ahead in the
- code lengths to determine what size sub-table is needed. The length
- counts are used for this, and so count[] is decremented as codes are
- entered in the tables.
-
- used keeps track of how many table entries have been allocated from the
- provided *table space. It is checked for LENS and DIST tables against
- the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
- the initial root table size constants. See the comments in inftree9.h
- for more information.
-
- sym increments through all symbols, and the loop terminates when
- all codes of length max, i.e. all codes, have been processed. This
- routine permits incomplete codes, so another loop after this one fills
- in the rest of the decoding tables with invalid code markers.
- */
-
- /* set up for code type */
- switch (type) {
- case CODES:
- base = extra = work; /* dummy value--not used */
- end = 19;
- break;
- case LENS:
- base = lbase;
- base -= 257;
- extra = lext;
- extra -= 257;
- end = 256;
- break;
- default: /* DISTS */
- base = dbase;
- extra = dext;
- end = -1;
- }
-
- /* initialize state for loop */
- huff = 0; /* starting code */
- sym = 0; /* starting code symbol */
- len = min; /* starting code length */
- next = *table; /* current table to fill in */
- curr = root; /* current table index bits */
- drop = 0; /* current bits to drop from code for index */
- low = (unsigned)(-1); /* trigger new sub-table when len > root */
- used = 1U << root; /* use root table entries */
- mask = used - 1; /* mask for comparing low */
-
- /* check available table space */
- if ((type == LENS && used >= ENOUGH_LENS) ||
- (type == DISTS && used >= ENOUGH_DISTS))
- return 1;
-
- /* process all codes and make table entries */
- for (;;) {
- /* create table entry */
- this.bits = (unsigned char)(len - drop);
- if ((int)(work[sym]) < end) {
- this.op = (unsigned char)0;
- this.val = work[sym];
- }
- else if ((int)(work[sym]) > end) {
- this.op = (unsigned char)(extra[work[sym]]);
- this.val = base[work[sym]];
- }
- else {
- this.op = (unsigned char)(32 + 64); /* end of block */
- this.val = 0;
- }
-
- /* replicate for those indices with low len bits equal to huff */
- incr = 1U << (len - drop);
- fill = 1U << curr;
- do {
- fill -= incr;
- next[(huff >> drop) + fill] = this;
- } while (fill != 0);
-
- /* backwards increment the len-bit code huff */
- incr = 1U << (len - 1);
- while (huff & incr)
- incr >>= 1;
- if (incr != 0) {
- huff &= incr - 1;
- huff += incr;
- }
- else
- huff = 0;
-
- /* go to next symbol, update count, len */
- sym++;
- if (--(count[len]) == 0) {
- if (len == max) break;
- len = lens[work[sym]];
- }
-
- /* create new sub-table if needed */
- if (len > root && (huff & mask) != low) {
- /* if first time, transition to sub-tables */
- if (drop == 0)
- drop = root;
-
- /* increment past last table */
- next += 1U << curr;
-
- /* determine length of next table */
- curr = len - drop;
- left = (int)(1 << curr);
- while (curr + drop < max) {
- left -= count[curr + drop];
- if (left <= 0) break;
- curr++;
- left <<= 1;
- }
-
- /* check for enough space */
- used += 1U << curr;
- if ((type == LENS && used >= ENOUGH_LENS) ||
- (type == DISTS && used >= ENOUGH_DISTS))
- return 1;
-
- /* point entry in root table to sub-table */
- low = huff & mask;
- (*table)[low].op = (unsigned char)curr;
- (*table)[low].bits = (unsigned char)root;
- (*table)[low].val = (unsigned short)(next - *table);
- }
- }
-
- /*
- Fill in rest of table for incomplete codes. This loop is similar to the
- loop above in incrementing huff for table indices. It is assumed that
- len is equal to curr + drop, so there is no loop needed to increment
- through high index bits. When the current sub-table is filled, the loop
- drops back to the root table to fill in any remaining entries there.
- */
- this.op = (unsigned char)64; /* invalid code marker */
- this.bits = (unsigned char)(len - drop);
- this.val = (unsigned short)0;
- while (huff != 0) {
- /* when done with sub-table, drop back to root table */
- if (drop != 0 && (huff & mask) != low) {
- drop = 0;
- len = root;
- next = *table;
- curr = root;
- this.bits = (unsigned char)len;
- }
-
- /* put invalid code marker in table */
- next[huff >> drop] = this;
-
- /* backwards increment the len-bit code huff */
- incr = 1U << (len - 1);
- while (huff & incr)
- incr >>= 1;
- if (incr != 0) {
- huff &= incr - 1;
- huff += incr;
- }
- else
- huff = 0;
- }
-
- /* set return parameters */
- *table += used;
- *bits = root;
- return 0;
-}
+++ /dev/null
-/* inftree9.h -- header to use inftree9.c
- * Copyright (C) 1995-2008 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-/* Structure for decoding tables. Each entry provides either the
- information needed to do the operation requested by the code that
- indexed that table entry, or it provides a pointer to another
- table that indexes more bits of the code. op indicates whether
- the entry is a pointer to another table, a literal, a length or
- distance, an end-of-block, or an invalid code. For a table
- pointer, the low four bits of op is the number of index bits of
- that table. For a length or distance, the low four bits of op
- is the number of extra bits to get after the code. bits is
- the number of bits in this code or part of the code to drop off
- of the bit buffer. val is the actual byte to output in the case
- of a literal, the base length or distance, or the offset from
- the current table to the next table. Each entry is four bytes. */
-typedef struct {
- unsigned char op; /* operation, extra bits, table bits */
- unsigned char bits; /* bits in this part of the code */
- unsigned short val; /* offset in table or code value */
-} code;
-
-/* op values as set by inflate_table():
- 00000000 - literal
- 0000tttt - table link, tttt != 0 is the number of table index bits
- 100eeeee - length or distance, eeee is the number of extra bits
- 01100000 - end of block
- 01000000 - invalid code
- */
-
-/* Maximum size of the dynamic table. The maximum number of code structures is
- 1446, which is the sum of 852 for literal/length codes and 594 for distance
- codes. These values were found by exhaustive searches using the program
- examples/enough.c found in the zlib distribtution. The arguments to that
- program are the number of symbols, the initial root table size, and the
- maximum bit length of a code. "enough 286 9 15" for literal/length codes
- returns returns 852, and "enough 32 6 15" for distance codes returns 594.
- The initial root table size (9 or 6) is found in the fifth argument of the
- inflate_table() calls in infback9.c. If the root table size is changed,
- then these maximum sizes would be need to be recalculated and updated. */
-#define ENOUGH_LENS 852
-#define ENOUGH_DISTS 594
-#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
-
-/* Type of code to build for inflate_table9() */
-typedef enum {
- CODES,
- LENS,
- DISTS
-} codetype;
-
-extern int inflate_table9 OF((codetype type, unsigned short FAR *lens,
- unsigned codes, code FAR * FAR *table,
- unsigned FAR *bits, unsigned short FAR *work));
+++ /dev/null
-/* inffas86.c is a hand tuned assembler version of
- *
- * inffast.c -- fast decoding
- * Copyright (C) 1995-2003 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Copyright (C) 2003 Chris Anderson <christop@charm.net>
- * Please use the copyright conditions above.
- *
- * Dec-29-2003 -- I added AMD64 inflate asm support. This version is also
- * slightly quicker on x86 systems because, instead of using rep movsb to copy
- * data, it uses rep movsw, which moves data in 2-byte chunks instead of single
- * bytes. I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
- * from http://fedora.linux.duke.edu/fc1_x86_64
- * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
- * 1GB ram. The 64-bit version is about 4% faster than the 32-bit version,
- * when decompressing mozilla-source-1.3.tar.gz.
- *
- * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
- * the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at
- * the moment. I have successfully compiled and tested this code with gcc2.96,
- * gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S
- * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
- * enabled. I will attempt to merge the MMX code into this version. Newer
- * versions of this and inffast.S can be found at
- * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-#include "inflate.h"
-#include "inffast.h"
-
-/* Mark Adler's comments from inffast.c: */
-
-/*
- Decode literal, length, and distance codes and write out the resulting
- literal and match bytes until either not enough input or output is
- available, an end-of-block is encountered, or a data error is encountered.
- When large enough input and output buffers are supplied to inflate(), for
- example, a 16K input buffer and a 64K output buffer, more than 95% of the
- inflate execution time is spent in this routine.
-
- Entry assumptions:
-
- state->mode == LEN
- strm->avail_in >= 6
- strm->avail_out >= 258
- start >= strm->avail_out
- state->bits < 8
-
- On return, state->mode is one of:
-
- LEN -- ran out of enough output space or enough available input
- TYPE -- reached end of block code, inflate() to interpret next block
- BAD -- error in block data
-
- Notes:
-
- - The maximum input bits used by a length/distance pair is 15 bits for the
- length code, 5 bits for the length extra, 15 bits for the distance code,
- and 13 bits for the distance extra. This totals 48 bits, or six bytes.
- Therefore if strm->avail_in >= 6, then there is enough input to avoid
- checking for available input while decoding.
-
- - The maximum bytes that a single length/distance pair can output is 258
- bytes, which is the maximum length that can be coded. inflate_fast()
- requires strm->avail_out >= 258 for each loop to avoid checking for
- output space.
- */
-void inflate_fast(strm, start)
-z_streamp strm;
-unsigned start; /* inflate()'s starting value for strm->avail_out */
-{
- struct inflate_state FAR *state;
- struct inffast_ar {
-/* 64 32 x86 x86_64 */
-/* ar offset register */
-/* 0 0 */ void *esp; /* esp save */
-/* 8 4 */ void *ebp; /* ebp save */
-/* 16 8 */ unsigned char FAR *in; /* esi rsi local strm->next_in */
-/* 24 12 */ unsigned char FAR *last; /* r9 while in < last */
-/* 32 16 */ unsigned char FAR *out; /* edi rdi local strm->next_out */
-/* 40 20 */ unsigned char FAR *beg; /* inflate()'s init next_out */
-/* 48 24 */ unsigned char FAR *end; /* r10 while out < end */
-/* 56 28 */ unsigned char FAR *window;/* size of window, wsize!=0 */
-/* 64 32 */ code const FAR *lcode; /* ebp rbp local strm->lencode */
-/* 72 36 */ code const FAR *dcode; /* r11 local strm->distcode */
-/* 80 40 */ unsigned long hold; /* edx rdx local strm->hold */
-/* 88 44 */ unsigned bits; /* ebx rbx local strm->bits */
-/* 92 48 */ unsigned wsize; /* window size */
-/* 96 52 */ unsigned write; /* window write index */
-/*100 56 */ unsigned lmask; /* r12 mask for lcode */
-/*104 60 */ unsigned dmask; /* r13 mask for dcode */
-/*108 64 */ unsigned len; /* r14 match length */
-/*112 68 */ unsigned dist; /* r15 match distance */
-/*116 72 */ unsigned status; /* set when state chng*/
- } ar;
-
-#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )
-#define PAD_AVAIL_IN 6
-#define PAD_AVAIL_OUT 258
-#else
-#define PAD_AVAIL_IN 5
-#define PAD_AVAIL_OUT 257
-#endif
-
- /* copy state to local variables */
- state = (struct inflate_state FAR *)strm->state;
- ar.in = strm->next_in;
- ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
- ar.out = strm->next_out;
- ar.beg = ar.out - (start - strm->avail_out);
- ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
- ar.wsize = state->wsize;
- ar.write = state->wnext;
- ar.window = state->window;
- ar.hold = state->hold;
- ar.bits = state->bits;
- ar.lcode = state->lencode;
- ar.dcode = state->distcode;
- ar.lmask = (1U << state->lenbits) - 1;
- ar.dmask = (1U << state->distbits) - 1;
-
- /* decode literals and length/distances until end-of-block or not enough
- input data or output space */
-
- /* align in on 1/2 hold size boundary */
- while (((unsigned long)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
- ar.hold += (unsigned long)*ar.in++ << ar.bits;
- ar.bits += 8;
- }
-
-#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )
- __asm__ __volatile__ (
-" leaq %0, %%rax\n"
-" movq %%rbp, 8(%%rax)\n" /* save regs rbp and rsp */
-" movq %%rsp, (%%rax)\n"
-" movq %%rax, %%rsp\n" /* make rsp point to &ar */
-" movq 16(%%rsp), %%rsi\n" /* rsi = in */
-" movq 32(%%rsp), %%rdi\n" /* rdi = out */
-" movq 24(%%rsp), %%r9\n" /* r9 = last */
-" movq 48(%%rsp), %%r10\n" /* r10 = end */
-" movq 64(%%rsp), %%rbp\n" /* rbp = lcode */
-" movq 72(%%rsp), %%r11\n" /* r11 = dcode */
-" movq 80(%%rsp), %%rdx\n" /* rdx = hold */
-" movl 88(%%rsp), %%ebx\n" /* ebx = bits */
-" movl 100(%%rsp), %%r12d\n" /* r12d = lmask */
-" movl 104(%%rsp), %%r13d\n" /* r13d = dmask */
- /* r14d = len */
- /* r15d = dist */
-" cld\n"
-" cmpq %%rdi, %%r10\n"
-" je .L_one_time\n" /* if only one decode left */
-" cmpq %%rsi, %%r9\n"
-" je .L_one_time\n"
-" jmp .L_do_loop\n"
-
-".L_one_time:\n"
-" movq %%r12, %%r8\n" /* r8 = lmask */
-" cmpb $32, %%bl\n"
-" ja .L_get_length_code_one_time\n"
-
-" lodsl\n" /* eax = *(uint *)in++ */
-" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
-" addb $32, %%bl\n" /* bits += 32 */
-" shlq %%cl, %%rax\n"
-" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */
-" jmp .L_get_length_code_one_time\n"
-
-".align 32,0x90\n"
-".L_while_test:\n"
-" cmpq %%rdi, %%r10\n"
-" jbe .L_break_loop\n"
-" cmpq %%rsi, %%r9\n"
-" jbe .L_break_loop\n"
-
-".L_do_loop:\n"
-" movq %%r12, %%r8\n" /* r8 = lmask */
-" cmpb $32, %%bl\n"
-" ja .L_get_length_code\n" /* if (32 < bits) */
-
-" lodsl\n" /* eax = *(uint *)in++ */
-" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
-" addb $32, %%bl\n" /* bits += 32 */
-" shlq %%cl, %%rax\n"
-" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */
-
-".L_get_length_code:\n"
-" andq %%rdx, %%r8\n" /* r8 &= hold */
-" movl (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */
-
-" movb %%ah, %%cl\n" /* cl = this.bits */
-" subb %%ah, %%bl\n" /* bits -= this.bits */
-" shrq %%cl, %%rdx\n" /* hold >>= this.bits */
-
-" testb %%al, %%al\n"
-" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */
-
-" movq %%r12, %%r8\n" /* r8 = lmask */
-" shrl $16, %%eax\n" /* output this.val char */
-" stosb\n"
-
-".L_get_length_code_one_time:\n"
-" andq %%rdx, %%r8\n" /* r8 &= hold */
-" movl (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */
-
-".L_dolen:\n"
-" movb %%ah, %%cl\n" /* cl = this.bits */
-" subb %%ah, %%bl\n" /* bits -= this.bits */
-" shrq %%cl, %%rdx\n" /* hold >>= this.bits */
-
-" testb %%al, %%al\n"
-" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */
-
-" shrl $16, %%eax\n" /* output this.val char */
-" stosb\n"
-" jmp .L_while_test\n"
-
-".align 32,0x90\n"
-".L_test_for_length_base:\n"
-" movl %%eax, %%r14d\n" /* len = this */
-" shrl $16, %%r14d\n" /* len = this.val */
-" movb %%al, %%cl\n"
-
-" testb $16, %%al\n"
-" jz .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
-" andb $15, %%cl\n" /* op &= 15 */
-" jz .L_decode_distance\n" /* if (!op) */
-
-".L_add_bits_to_len:\n"
-" subb %%cl, %%bl\n"
-" xorl %%eax, %%eax\n"
-" incl %%eax\n"
-" shll %%cl, %%eax\n"
-" decl %%eax\n"
-" andl %%edx, %%eax\n" /* eax &= hold */
-" shrq %%cl, %%rdx\n"
-" addl %%eax, %%r14d\n" /* len += hold & mask[op] */
-
-".L_decode_distance:\n"
-" movq %%r13, %%r8\n" /* r8 = dmask */
-" cmpb $32, %%bl\n"
-" ja .L_get_distance_code\n" /* if (32 < bits) */
-
-" lodsl\n" /* eax = *(uint *)in++ */
-" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
-" addb $32, %%bl\n" /* bits += 32 */
-" shlq %%cl, %%rax\n"
-" orq %%rax, %%rdx\n" /* hold |= *((uint *)in)++ << bits */
-
-".L_get_distance_code:\n"
-" andq %%rdx, %%r8\n" /* r8 &= hold */
-" movl (%%r11,%%r8,4), %%eax\n" /* eax = dcode[hold & dmask] */
-
-".L_dodist:\n"
-" movl %%eax, %%r15d\n" /* dist = this */
-" shrl $16, %%r15d\n" /* dist = this.val */
-" movb %%ah, %%cl\n"
-" subb %%ah, %%bl\n" /* bits -= this.bits */
-" shrq %%cl, %%rdx\n" /* hold >>= this.bits */
-" movb %%al, %%cl\n" /* cl = this.op */
-
-" testb $16, %%al\n" /* if ((op & 16) == 0) */
-" jz .L_test_for_second_level_dist\n"
-" andb $15, %%cl\n" /* op &= 15 */
-" jz .L_check_dist_one\n"
-
-".L_add_bits_to_dist:\n"
-" subb %%cl, %%bl\n"
-" xorl %%eax, %%eax\n"
-" incl %%eax\n"
-" shll %%cl, %%eax\n"
-" decl %%eax\n" /* (1 << op) - 1 */
-" andl %%edx, %%eax\n" /* eax &= hold */
-" shrq %%cl, %%rdx\n"
-" addl %%eax, %%r15d\n" /* dist += hold & ((1 << op) - 1) */
-
-".L_check_window:\n"
-" movq %%rsi, %%r8\n" /* save in so from can use it's reg */
-" movq %%rdi, %%rax\n"
-" subq 40(%%rsp), %%rax\n" /* nbytes = out - beg */
-
-" cmpl %%r15d, %%eax\n"
-" jb .L_clip_window\n" /* if (dist > nbytes) 4.2% */
-
-" movl %%r14d, %%ecx\n" /* ecx = len */
-" movq %%rdi, %%rsi\n"
-" subq %%r15, %%rsi\n" /* from = out - dist */
-
-" sarl %%ecx\n"
-" jnc .L_copy_two\n" /* if len % 2 == 0 */
-
-" rep movsw\n"
-" movb (%%rsi), %%al\n"
-" movb %%al, (%%rdi)\n"
-" incq %%rdi\n"
-
-" movq %%r8, %%rsi\n" /* move in back to %rsi, toss from */
-" jmp .L_while_test\n"
-
-".L_copy_two:\n"
-" rep movsw\n"
-" movq %%r8, %%rsi\n" /* move in back to %rsi, toss from */
-" jmp .L_while_test\n"
-
-".align 32,0x90\n"
-".L_check_dist_one:\n"
-" cmpl $1, %%r15d\n" /* if dist 1, is a memset */
-" jne .L_check_window\n"
-" cmpq %%rdi, 40(%%rsp)\n" /* if out == beg, outside window */
-" je .L_check_window\n"
-
-" movl %%r14d, %%ecx\n" /* ecx = len */
-" movb -1(%%rdi), %%al\n"
-" movb %%al, %%ah\n"
-
-" sarl %%ecx\n"
-" jnc .L_set_two\n"
-" movb %%al, (%%rdi)\n"
-" incq %%rdi\n"
-
-".L_set_two:\n"
-" rep stosw\n"
-" jmp .L_while_test\n"
-
-".align 32,0x90\n"
-".L_test_for_second_level_length:\n"
-" testb $64, %%al\n"
-" jnz .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
-
-" xorl %%eax, %%eax\n"
-" incl %%eax\n"
-" shll %%cl, %%eax\n"
-" decl %%eax\n"
-" andl %%edx, %%eax\n" /* eax &= hold */
-" addl %%r14d, %%eax\n" /* eax += len */
-" movl (%%rbp,%%rax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
-" jmp .L_dolen\n"
-
-".align 32,0x90\n"
-".L_test_for_second_level_dist:\n"
-" testb $64, %%al\n"
-" jnz .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
-
-" xorl %%eax, %%eax\n"
-" incl %%eax\n"
-" shll %%cl, %%eax\n"
-" decl %%eax\n"
-" andl %%edx, %%eax\n" /* eax &= hold */
-" addl %%r15d, %%eax\n" /* eax += dist */
-" movl (%%r11,%%rax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
-" jmp .L_dodist\n"
-
-".align 32,0x90\n"
-".L_clip_window:\n"
-" movl %%eax, %%ecx\n" /* ecx = nbytes */
-" movl 92(%%rsp), %%eax\n" /* eax = wsize, prepare for dist cmp */
-" negl %%ecx\n" /* nbytes = -nbytes */
-
-" cmpl %%r15d, %%eax\n"
-" jb .L_invalid_distance_too_far\n" /* if (dist > wsize) */
-
-" addl %%r15d, %%ecx\n" /* nbytes = dist - nbytes */
-" cmpl $0, 96(%%rsp)\n"
-" jne .L_wrap_around_window\n" /* if (write != 0) */
-
-" movq 56(%%rsp), %%rsi\n" /* from = window */
-" subl %%ecx, %%eax\n" /* eax -= nbytes */
-" addq %%rax, %%rsi\n" /* from += wsize - nbytes */
-
-" movl %%r14d, %%eax\n" /* eax = len */
-" cmpl %%ecx, %%r14d\n"
-" jbe .L_do_copy\n" /* if (nbytes >= len) */
-
-" subl %%ecx, %%eax\n" /* eax -= nbytes */
-" rep movsb\n"
-" movq %%rdi, %%rsi\n"
-" subq %%r15, %%rsi\n" /* from = &out[ -dist ] */
-" jmp .L_do_copy\n"
-
-".align 32,0x90\n"
-".L_wrap_around_window:\n"
-" movl 96(%%rsp), %%eax\n" /* eax = write */
-" cmpl %%eax, %%ecx\n"
-" jbe .L_contiguous_in_window\n" /* if (write >= nbytes) */
-
-" movl 92(%%rsp), %%esi\n" /* from = wsize */
-" addq 56(%%rsp), %%rsi\n" /* from += window */
-" addq %%rax, %%rsi\n" /* from += write */
-" subq %%rcx, %%rsi\n" /* from -= nbytes */
-" subl %%eax, %%ecx\n" /* nbytes -= write */
-
-" movl %%r14d, %%eax\n" /* eax = len */
-" cmpl %%ecx, %%eax\n"
-" jbe .L_do_copy\n" /* if (nbytes >= len) */
-
-" subl %%ecx, %%eax\n" /* len -= nbytes */
-" rep movsb\n"
-" movq 56(%%rsp), %%rsi\n" /* from = window */
-" movl 96(%%rsp), %%ecx\n" /* nbytes = write */
-" cmpl %%ecx, %%eax\n"
-" jbe .L_do_copy\n" /* if (nbytes >= len) */
-
-" subl %%ecx, %%eax\n" /* len -= nbytes */
-" rep movsb\n"
-" movq %%rdi, %%rsi\n"
-" subq %%r15, %%rsi\n" /* from = out - dist */
-" jmp .L_do_copy\n"
-
-".align 32,0x90\n"
-".L_contiguous_in_window:\n"
-" movq 56(%%rsp), %%rsi\n" /* rsi = window */
-" addq %%rax, %%rsi\n"
-" subq %%rcx, %%rsi\n" /* from += write - nbytes */
-
-" movl %%r14d, %%eax\n" /* eax = len */
-" cmpl %%ecx, %%eax\n"
-" jbe .L_do_copy\n" /* if (nbytes >= len) */
-
-" subl %%ecx, %%eax\n" /* len -= nbytes */
-" rep movsb\n"
-" movq %%rdi, %%rsi\n"
-" subq %%r15, %%rsi\n" /* from = out - dist */
-" jmp .L_do_copy\n" /* if (nbytes >= len) */
-
-".align 32,0x90\n"
-".L_do_copy:\n"
-" movl %%eax, %%ecx\n" /* ecx = len */
-" rep movsb\n"
-
-" movq %%r8, %%rsi\n" /* move in back to %esi, toss from */
-" jmp .L_while_test\n"
-
-".L_test_for_end_of_block:\n"
-" testb $32, %%al\n"
-" jz .L_invalid_literal_length_code\n"
-" movl $1, 116(%%rsp)\n"
-" jmp .L_break_loop_with_status\n"
-
-".L_invalid_literal_length_code:\n"
-" movl $2, 116(%%rsp)\n"
-" jmp .L_break_loop_with_status\n"
-
-".L_invalid_distance_code:\n"
-" movl $3, 116(%%rsp)\n"
-" jmp .L_break_loop_with_status\n"
-
-".L_invalid_distance_too_far:\n"
-" movl $4, 116(%%rsp)\n"
-" jmp .L_break_loop_with_status\n"
-
-".L_break_loop:\n"
-" movl $0, 116(%%rsp)\n"
-
-".L_break_loop_with_status:\n"
-/* put in, out, bits, and hold back into ar and pop esp */
-" movq %%rsi, 16(%%rsp)\n" /* in */
-" movq %%rdi, 32(%%rsp)\n" /* out */
-" movl %%ebx, 88(%%rsp)\n" /* bits */
-" movq %%rdx, 80(%%rsp)\n" /* hold */
-" movq (%%rsp), %%rax\n" /* restore rbp and rsp */
-" movq 8(%%rsp), %%rbp\n"
-" movq %%rax, %%rsp\n"
- :
- : "m" (ar)
- : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
- "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
- );
-#elif ( defined( __GNUC__ ) || defined( __ICC ) ) && defined( __i386 )
- __asm__ __volatile__ (
-" leal %0, %%eax\n"
-" movl %%esp, (%%eax)\n" /* save esp, ebp */
-" movl %%ebp, 4(%%eax)\n"
-" movl %%eax, %%esp\n"
-" movl 8(%%esp), %%esi\n" /* esi = in */
-" movl 16(%%esp), %%edi\n" /* edi = out */
-" movl 40(%%esp), %%edx\n" /* edx = hold */
-" movl 44(%%esp), %%ebx\n" /* ebx = bits */
-" movl 32(%%esp), %%ebp\n" /* ebp = lcode */
-
-" cld\n"
-" jmp .L_do_loop\n"
-
-".align 32,0x90\n"
-".L_while_test:\n"
-" cmpl %%edi, 24(%%esp)\n" /* out < end */
-" jbe .L_break_loop\n"
-" cmpl %%esi, 12(%%esp)\n" /* in < last */
-" jbe .L_break_loop\n"
-
-".L_do_loop:\n"
-" cmpb $15, %%bl\n"
-" ja .L_get_length_code\n" /* if (15 < bits) */
-
-" xorl %%eax, %%eax\n"
-" lodsw\n" /* al = *(ushort *)in++ */
-" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
-" addb $16, %%bl\n" /* bits += 16 */
-" shll %%cl, %%eax\n"
-" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */
-
-".L_get_length_code:\n"
-" movl 56(%%esp), %%eax\n" /* eax = lmask */
-" andl %%edx, %%eax\n" /* eax &= hold */
-" movl (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[hold & lmask] */
-
-".L_dolen:\n"
-" movb %%ah, %%cl\n" /* cl = this.bits */
-" subb %%ah, %%bl\n" /* bits -= this.bits */
-" shrl %%cl, %%edx\n" /* hold >>= this.bits */
-
-" testb %%al, %%al\n"
-" jnz .L_test_for_length_base\n" /* if (op != 0) 45.7% */
-
-" shrl $16, %%eax\n" /* output this.val char */
-" stosb\n"
-" jmp .L_while_test\n"
-
-".align 32,0x90\n"
-".L_test_for_length_base:\n"
-" movl %%eax, %%ecx\n" /* len = this */
-" shrl $16, %%ecx\n" /* len = this.val */
-" movl %%ecx, 64(%%esp)\n" /* save len */
-" movb %%al, %%cl\n"
-
-" testb $16, %%al\n"
-" jz .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
-" andb $15, %%cl\n" /* op &= 15 */
-" jz .L_decode_distance\n" /* if (!op) */
-" cmpb %%cl, %%bl\n"
-" jae .L_add_bits_to_len\n" /* if (op <= bits) */
-
-" movb %%cl, %%ch\n" /* stash op in ch, freeing cl */
-" xorl %%eax, %%eax\n"
-" lodsw\n" /* al = *(ushort *)in++ */
-" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
-" addb $16, %%bl\n" /* bits += 16 */
-" shll %%cl, %%eax\n"
-" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */
-" movb %%ch, %%cl\n" /* move op back to ecx */
-
-".L_add_bits_to_len:\n"
-" subb %%cl, %%bl\n"
-" xorl %%eax, %%eax\n"
-" incl %%eax\n"
-" shll %%cl, %%eax\n"
-" decl %%eax\n"
-" andl %%edx, %%eax\n" /* eax &= hold */
-" shrl %%cl, %%edx\n"
-" addl %%eax, 64(%%esp)\n" /* len += hold & mask[op] */
-
-".L_decode_distance:\n"
-" cmpb $15, %%bl\n"
-" ja .L_get_distance_code\n" /* if (15 < bits) */
-
-" xorl %%eax, %%eax\n"
-" lodsw\n" /* al = *(ushort *)in++ */
-" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
-" addb $16, %%bl\n" /* bits += 16 */
-" shll %%cl, %%eax\n"
-" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */
-
-".L_get_distance_code:\n"
-" movl 60(%%esp), %%eax\n" /* eax = dmask */
-" movl 36(%%esp), %%ecx\n" /* ecx = dcode */
-" andl %%edx, %%eax\n" /* eax &= hold */
-" movl (%%ecx,%%eax,4), %%eax\n"/* eax = dcode[hold & dmask] */
-
-".L_dodist:\n"
-" movl %%eax, %%ebp\n" /* dist = this */
-" shrl $16, %%ebp\n" /* dist = this.val */
-" movb %%ah, %%cl\n"
-" subb %%ah, %%bl\n" /* bits -= this.bits */
-" shrl %%cl, %%edx\n" /* hold >>= this.bits */
-" movb %%al, %%cl\n" /* cl = this.op */
-
-" testb $16, %%al\n" /* if ((op & 16) == 0) */
-" jz .L_test_for_second_level_dist\n"
-" andb $15, %%cl\n" /* op &= 15 */
-" jz .L_check_dist_one\n"
-" cmpb %%cl, %%bl\n"
-" jae .L_add_bits_to_dist\n" /* if (op <= bits) 97.6% */
-
-" movb %%cl, %%ch\n" /* stash op in ch, freeing cl */
-" xorl %%eax, %%eax\n"
-" lodsw\n" /* al = *(ushort *)in++ */
-" movb %%bl, %%cl\n" /* cl = bits, needs it for shifting */
-" addb $16, %%bl\n" /* bits += 16 */
-" shll %%cl, %%eax\n"
-" orl %%eax, %%edx\n" /* hold |= *((ushort *)in)++ << bits */
-" movb %%ch, %%cl\n" /* move op back to ecx */
-
-".L_add_bits_to_dist:\n"
-" subb %%cl, %%bl\n"
-" xorl %%eax, %%eax\n"
-" incl %%eax\n"
-" shll %%cl, %%eax\n"
-" decl %%eax\n" /* (1 << op) - 1 */
-" andl %%edx, %%eax\n" /* eax &= hold */
-" shrl %%cl, %%edx\n"
-" addl %%eax, %%ebp\n" /* dist += hold & ((1 << op) - 1) */
-
-".L_check_window:\n"
-" movl %%esi, 8(%%esp)\n" /* save in so from can use it's reg */
-" movl %%edi, %%eax\n"
-" subl 20(%%esp), %%eax\n" /* nbytes = out - beg */
-
-" cmpl %%ebp, %%eax\n"
-" jb .L_clip_window\n" /* if (dist > nbytes) 4.2% */
-
-" movl 64(%%esp), %%ecx\n" /* ecx = len */
-" movl %%edi, %%esi\n"
-" subl %%ebp, %%esi\n" /* from = out - dist */
-
-" sarl %%ecx\n"
-" jnc .L_copy_two\n" /* if len % 2 == 0 */
-
-" rep movsw\n"
-" movb (%%esi), %%al\n"
-" movb %%al, (%%edi)\n"
-" incl %%edi\n"
-
-" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */
-" movl 32(%%esp), %%ebp\n" /* ebp = lcode */
-" jmp .L_while_test\n"
-
-".L_copy_two:\n"
-" rep movsw\n"
-" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */
-" movl 32(%%esp), %%ebp\n" /* ebp = lcode */
-" jmp .L_while_test\n"
-
-".align 32,0x90\n"
-".L_check_dist_one:\n"
-" cmpl $1, %%ebp\n" /* if dist 1, is a memset */
-" jne .L_check_window\n"
-" cmpl %%edi, 20(%%esp)\n"
-" je .L_check_window\n" /* out == beg, if outside window */
-
-" movl 64(%%esp), %%ecx\n" /* ecx = len */
-" movb -1(%%edi), %%al\n"
-" movb %%al, %%ah\n"
-
-" sarl %%ecx\n"
-" jnc .L_set_two\n"
-" movb %%al, (%%edi)\n"
-" incl %%edi\n"
-
-".L_set_two:\n"
-" rep stosw\n"
-" movl 32(%%esp), %%ebp\n" /* ebp = lcode */
-" jmp .L_while_test\n"
-
-".align 32,0x90\n"
-".L_test_for_second_level_length:\n"
-" testb $64, %%al\n"
-" jnz .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
-
-" xorl %%eax, %%eax\n"
-" incl %%eax\n"
-" shll %%cl, %%eax\n"
-" decl %%eax\n"
-" andl %%edx, %%eax\n" /* eax &= hold */
-" addl 64(%%esp), %%eax\n" /* eax += len */
-" movl (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
-" jmp .L_dolen\n"
-
-".align 32,0x90\n"
-".L_test_for_second_level_dist:\n"
-" testb $64, %%al\n"
-" jnz .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
-
-" xorl %%eax, %%eax\n"
-" incl %%eax\n"
-" shll %%cl, %%eax\n"
-" decl %%eax\n"
-" andl %%edx, %%eax\n" /* eax &= hold */
-" addl %%ebp, %%eax\n" /* eax += dist */
-" movl 36(%%esp), %%ecx\n" /* ecx = dcode */
-" movl (%%ecx,%%eax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
-" jmp .L_dodist\n"
-
-".align 32,0x90\n"
-".L_clip_window:\n"
-" movl %%eax, %%ecx\n"
-" movl 48(%%esp), %%eax\n" /* eax = wsize */
-" negl %%ecx\n" /* nbytes = -nbytes */
-" movl 28(%%esp), %%esi\n" /* from = window */
-
-" cmpl %%ebp, %%eax\n"
-" jb .L_invalid_distance_too_far\n" /* if (dist > wsize) */
-
-" addl %%ebp, %%ecx\n" /* nbytes = dist - nbytes */
-" cmpl $0, 52(%%esp)\n"
-" jne .L_wrap_around_window\n" /* if (write != 0) */
-
-" subl %%ecx, %%eax\n"
-" addl %%eax, %%esi\n" /* from += wsize - nbytes */
-
-" movl 64(%%esp), %%eax\n" /* eax = len */
-" cmpl %%ecx, %%eax\n"
-" jbe .L_do_copy\n" /* if (nbytes >= len) */
-
-" subl %%ecx, %%eax\n" /* len -= nbytes */
-" rep movsb\n"
-" movl %%edi, %%esi\n"
-" subl %%ebp, %%esi\n" /* from = out - dist */
-" jmp .L_do_copy\n"
-
-".align 32,0x90\n"
-".L_wrap_around_window:\n"
-" movl 52(%%esp), %%eax\n" /* eax = write */
-" cmpl %%eax, %%ecx\n"
-" jbe .L_contiguous_in_window\n" /* if (write >= nbytes) */
-
-" addl 48(%%esp), %%esi\n" /* from += wsize */
-" addl %%eax, %%esi\n" /* from += write */
-" subl %%ecx, %%esi\n" /* from -= nbytes */
-" subl %%eax, %%ecx\n" /* nbytes -= write */
-
-" movl 64(%%esp), %%eax\n" /* eax = len */
-" cmpl %%ecx, %%eax\n"
-" jbe .L_do_copy\n" /* if (nbytes >= len) */
-
-" subl %%ecx, %%eax\n" /* len -= nbytes */
-" rep movsb\n"
-" movl 28(%%esp), %%esi\n" /* from = window */
-" movl 52(%%esp), %%ecx\n" /* nbytes = write */
-" cmpl %%ecx, %%eax\n"
-" jbe .L_do_copy\n" /* if (nbytes >= len) */
-
-" subl %%ecx, %%eax\n" /* len -= nbytes */
-" rep movsb\n"
-" movl %%edi, %%esi\n"
-" subl %%ebp, %%esi\n" /* from = out - dist */
-" jmp .L_do_copy\n"
-
-".align 32,0x90\n"
-".L_contiguous_in_window:\n"
-" addl %%eax, %%esi\n"
-" subl %%ecx, %%esi\n" /* from += write - nbytes */
-
-" movl 64(%%esp), %%eax\n" /* eax = len */
-" cmpl %%ecx, %%eax\n"
-" jbe .L_do_copy\n" /* if (nbytes >= len) */
-
-" subl %%ecx, %%eax\n" /* len -= nbytes */
-" rep movsb\n"
-" movl %%edi, %%esi\n"
-" subl %%ebp, %%esi\n" /* from = out - dist */
-" jmp .L_do_copy\n" /* if (nbytes >= len) */
-
-".align 32,0x90\n"
-".L_do_copy:\n"
-" movl %%eax, %%ecx\n"
-" rep movsb\n"
-
-" movl 8(%%esp), %%esi\n" /* move in back to %esi, toss from */
-" movl 32(%%esp), %%ebp\n" /* ebp = lcode */
-" jmp .L_while_test\n"
-
-".L_test_for_end_of_block:\n"
-" testb $32, %%al\n"
-" jz .L_invalid_literal_length_code\n"
-" movl $1, 72(%%esp)\n"
-" jmp .L_break_loop_with_status\n"
-
-".L_invalid_literal_length_code:\n"
-" movl $2, 72(%%esp)\n"
-" jmp .L_break_loop_with_status\n"
-
-".L_invalid_distance_code:\n"
-" movl $3, 72(%%esp)\n"
-" jmp .L_break_loop_with_status\n"
-
-".L_invalid_distance_too_far:\n"
-" movl 8(%%esp), %%esi\n"
-" movl $4, 72(%%esp)\n"
-" jmp .L_break_loop_with_status\n"
-
-".L_break_loop:\n"
-" movl $0, 72(%%esp)\n"
-
-".L_break_loop_with_status:\n"
-/* put in, out, bits, and hold back into ar and pop esp */
-" movl %%esi, 8(%%esp)\n" /* save in */
-" movl %%edi, 16(%%esp)\n" /* save out */
-" movl %%ebx, 44(%%esp)\n" /* save bits */
-" movl %%edx, 40(%%esp)\n" /* save hold */
-" movl 4(%%esp), %%ebp\n" /* restore esp, ebp */
-" movl (%%esp), %%esp\n"
- :
- : "m" (ar)
- : "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
- );
-#elif defined( _MSC_VER ) && ! defined( _M_AMD64 )
- __asm {
- lea eax, ar
- mov [eax], esp /* save esp, ebp */
- mov [eax+4], ebp
- mov esp, eax
- mov esi, [esp+8] /* esi = in */
- mov edi, [esp+16] /* edi = out */
- mov edx, [esp+40] /* edx = hold */
- mov ebx, [esp+44] /* ebx = bits */
- mov ebp, [esp+32] /* ebp = lcode */
-
- cld
- jmp L_do_loop
-
-ALIGN 4
-L_while_test:
- cmp [esp+24], edi
- jbe L_break_loop
- cmp [esp+12], esi
- jbe L_break_loop
-
-L_do_loop:
- cmp bl, 15
- ja L_get_length_code /* if (15 < bits) */
-
- xor eax, eax
- lodsw /* al = *(ushort *)in++ */
- mov cl, bl /* cl = bits, needs it for shifting */
- add bl, 16 /* bits += 16 */
- shl eax, cl
- or edx, eax /* hold |= *((ushort *)in)++ << bits */
-
-L_get_length_code:
- mov eax, [esp+56] /* eax = lmask */
- and eax, edx /* eax &= hold */
- mov eax, [ebp+eax*4] /* eax = lcode[hold & lmask] */
-
-L_dolen:
- mov cl, ah /* cl = this.bits */
- sub bl, ah /* bits -= this.bits */
- shr edx, cl /* hold >>= this.bits */
-
- test al, al
- jnz L_test_for_length_base /* if (op != 0) 45.7% */
-
- shr eax, 16 /* output this.val char */
- stosb
- jmp L_while_test
-
-ALIGN 4
-L_test_for_length_base:
- mov ecx, eax /* len = this */
- shr ecx, 16 /* len = this.val */
- mov [esp+64], ecx /* save len */
- mov cl, al
-
- test al, 16
- jz L_test_for_second_level_length /* if ((op & 16) == 0) 8% */
- and cl, 15 /* op &= 15 */
- jz L_decode_distance /* if (!op) */
- cmp bl, cl
- jae L_add_bits_to_len /* if (op <= bits) */
-
- mov ch, cl /* stash op in ch, freeing cl */
- xor eax, eax
- lodsw /* al = *(ushort *)in++ */
- mov cl, bl /* cl = bits, needs it for shifting */
- add bl, 16 /* bits += 16 */
- shl eax, cl
- or edx, eax /* hold |= *((ushort *)in)++ << bits */
- mov cl, ch /* move op back to ecx */
-
-L_add_bits_to_len:
- sub bl, cl
- xor eax, eax
- inc eax
- shl eax, cl
- dec eax
- and eax, edx /* eax &= hold */
- shr edx, cl
- add [esp+64], eax /* len += hold & mask[op] */
-
-L_decode_distance:
- cmp bl, 15
- ja L_get_distance_code /* if (15 < bits) */
-
- xor eax, eax
- lodsw /* al = *(ushort *)in++ */
- mov cl, bl /* cl = bits, needs it for shifting */
- add bl, 16 /* bits += 16 */
- shl eax, cl
- or edx, eax /* hold |= *((ushort *)in)++ << bits */
-
-L_get_distance_code:
- mov eax, [esp+60] /* eax = dmask */
- mov ecx, [esp+36] /* ecx = dcode */
- and eax, edx /* eax &= hold */
- mov eax, [ecx+eax*4]/* eax = dcode[hold & dmask] */
-
-L_dodist:
- mov ebp, eax /* dist = this */
- shr ebp, 16 /* dist = this.val */
- mov cl, ah
- sub bl, ah /* bits -= this.bits */
- shr edx, cl /* hold >>= this.bits */
- mov cl, al /* cl = this.op */
-
- test al, 16 /* if ((op & 16) == 0) */
- jz L_test_for_second_level_dist
- and cl, 15 /* op &= 15 */
- jz L_check_dist_one
- cmp bl, cl
- jae L_add_bits_to_dist /* if (op <= bits) 97.6% */
-
- mov ch, cl /* stash op in ch, freeing cl */
- xor eax, eax
- lodsw /* al = *(ushort *)in++ */
- mov cl, bl /* cl = bits, needs it for shifting */
- add bl, 16 /* bits += 16 */
- shl eax, cl
- or edx, eax /* hold |= *((ushort *)in)++ << bits */
- mov cl, ch /* move op back to ecx */
-
-L_add_bits_to_dist:
- sub bl, cl
- xor eax, eax
- inc eax
- shl eax, cl
- dec eax /* (1 << op) - 1 */
- and eax, edx /* eax &= hold */
- shr edx, cl
- add ebp, eax /* dist += hold & ((1 << op) - 1) */
-
-L_check_window:
- mov [esp+8], esi /* save in so from can use it's reg */
- mov eax, edi
- sub eax, [esp+20] /* nbytes = out - beg */
-
- cmp eax, ebp
- jb L_clip_window /* if (dist > nbytes) 4.2% */
-
- mov ecx, [esp+64] /* ecx = len */
- mov esi, edi
- sub esi, ebp /* from = out - dist */
-
- sar ecx, 1
- jnc L_copy_two
-
- rep movsw
- mov al, [esi]
- mov [edi], al
- inc edi
-
- mov esi, [esp+8] /* move in back to %esi, toss from */
- mov ebp, [esp+32] /* ebp = lcode */
- jmp L_while_test
-
-L_copy_two:
- rep movsw
- mov esi, [esp+8] /* move in back to %esi, toss from */
- mov ebp, [esp+32] /* ebp = lcode */
- jmp L_while_test
-
-ALIGN 4
-L_check_dist_one:
- cmp ebp, 1 /* if dist 1, is a memset */
- jne L_check_window
- cmp [esp+20], edi
- je L_check_window /* out == beg, if outside window */
-
- mov ecx, [esp+64] /* ecx = len */
- mov al, [edi-1]
- mov ah, al
-
- sar ecx, 1
- jnc L_set_two
- mov [edi], al /* memset out with from[-1] */
- inc edi
-
-L_set_two:
- rep stosw
- mov ebp, [esp+32] /* ebp = lcode */
- jmp L_while_test
-
-ALIGN 4
-L_test_for_second_level_length:
- test al, 64
- jnz L_test_for_end_of_block /* if ((op & 64) != 0) */
-
- xor eax, eax
- inc eax
- shl eax, cl
- dec eax
- and eax, edx /* eax &= hold */
- add eax, [esp+64] /* eax += len */
- mov eax, [ebp+eax*4] /* eax = lcode[val+(hold&mask[op])]*/
- jmp L_dolen
-
-ALIGN 4
-L_test_for_second_level_dist:
- test al, 64
- jnz L_invalid_distance_code /* if ((op & 64) != 0) */
-
- xor eax, eax
- inc eax
- shl eax, cl
- dec eax
- and eax, edx /* eax &= hold */
- add eax, ebp /* eax += dist */
- mov ecx, [esp+36] /* ecx = dcode */
- mov eax, [ecx+eax*4] /* eax = dcode[val+(hold&mask[op])]*/
- jmp L_dodist
-
-ALIGN 4
-L_clip_window:
- mov ecx, eax
- mov eax, [esp+48] /* eax = wsize */
- neg ecx /* nbytes = -nbytes */
- mov esi, [esp+28] /* from = window */
-
- cmp eax, ebp
- jb L_invalid_distance_too_far /* if (dist > wsize) */
-
- add ecx, ebp /* nbytes = dist - nbytes */
- cmp dword ptr [esp+52], 0
- jne L_wrap_around_window /* if (write != 0) */
-
- sub eax, ecx
- add esi, eax /* from += wsize - nbytes */
-
- mov eax, [esp+64] /* eax = len */
- cmp eax, ecx
- jbe L_do_copy /* if (nbytes >= len) */
-
- sub eax, ecx /* len -= nbytes */
- rep movsb
- mov esi, edi
- sub esi, ebp /* from = out - dist */
- jmp L_do_copy
-
-ALIGN 4
-L_wrap_around_window:
- mov eax, [esp+52] /* eax = write */
- cmp ecx, eax
- jbe L_contiguous_in_window /* if (write >= nbytes) */
-
- add esi, [esp+48] /* from += wsize */
- add esi, eax /* from += write */
- sub esi, ecx /* from -= nbytes */
- sub ecx, eax /* nbytes -= write */
-
- mov eax, [esp+64] /* eax = len */
- cmp eax, ecx
- jbe L_do_copy /* if (nbytes >= len) */
-
- sub eax, ecx /* len -= nbytes */
- rep movsb
- mov esi, [esp+28] /* from = window */
- mov ecx, [esp+52] /* nbytes = write */
- cmp eax, ecx
- jbe L_do_copy /* if (nbytes >= len) */
-
- sub eax, ecx /* len -= nbytes */
- rep movsb
- mov esi, edi
- sub esi, ebp /* from = out - dist */
- jmp L_do_copy
-
-ALIGN 4
-L_contiguous_in_window:
- add esi, eax
- sub esi, ecx /* from += write - nbytes */
-
- mov eax, [esp+64] /* eax = len */
- cmp eax, ecx
- jbe L_do_copy /* if (nbytes >= len) */
-
- sub eax, ecx /* len -= nbytes */
- rep movsb
- mov esi, edi
- sub esi, ebp /* from = out - dist */
- jmp L_do_copy
-
-ALIGN 4
-L_do_copy:
- mov ecx, eax
- rep movsb
-
- mov esi, [esp+8] /* move in back to %esi, toss from */
- mov ebp, [esp+32] /* ebp = lcode */
- jmp L_while_test
-
-L_test_for_end_of_block:
- test al, 32
- jz L_invalid_literal_length_code
- mov dword ptr [esp+72], 1
- jmp L_break_loop_with_status
-
-L_invalid_literal_length_code:
- mov dword ptr [esp+72], 2
- jmp L_break_loop_with_status
-
-L_invalid_distance_code:
- mov dword ptr [esp+72], 3
- jmp L_break_loop_with_status
-
-L_invalid_distance_too_far:
- mov esi, [esp+4]
- mov dword ptr [esp+72], 4
- jmp L_break_loop_with_status
-
-L_break_loop:
- mov dword ptr [esp+72], 0
-
-L_break_loop_with_status:
-/* put in, out, bits, and hold back into ar and pop esp */
- mov [esp+8], esi /* save in */
- mov [esp+16], edi /* save out */
- mov [esp+44], ebx /* save bits */
- mov [esp+40], edx /* save hold */
- mov ebp, [esp+4] /* restore esp, ebp */
- mov esp, [esp]
- }
-#else
-#error "x86 architecture not defined"
-#endif
-
- if (ar.status > 1) {
- if (ar.status == 2)
- strm->msg = "invalid literal/length code";
- else if (ar.status == 3)
- strm->msg = "invalid distance code";
- else
- strm->msg = "invalid distance too far back";
- state->mode = BAD;
- }
- else if ( ar.status == 1 ) {
- state->mode = TYPE;
- }
-
- /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
- ar.len = ar.bits >> 3;
- ar.in -= ar.len;
- ar.bits -= ar.len << 3;
- ar.hold &= (1U << ar.bits) - 1;
-
- /* update state and return */
- strm->next_in = ar.in;
- strm->next_out = ar.out;
- strm->avail_in = (unsigned)(ar.in < ar.last ?
- PAD_AVAIL_IN + (ar.last - ar.in) :
- PAD_AVAIL_IN - (ar.in - ar.last));
- strm->avail_out = (unsigned)(ar.out < ar.end ?
- PAD_AVAIL_OUT + (ar.end - ar.out) :
- PAD_AVAIL_OUT - (ar.out - ar.end));
- state->hold = ar.hold;
- state->bits = ar.bits;
- return;
-}
-
+++ /dev/null
-/*
- * inffast.S is a hand tuned assembler version of:
- *
- * inffast.c -- fast decoding
- * Copyright (C) 1995-2003 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Copyright (C) 2003 Chris Anderson <christop@charm.net>
- * Please use the copyright conditions above.
- *
- * This version (Jan-23-2003) of inflate_fast was coded and tested under
- * GNU/Linux on a pentium 3, using the gcc-3.2 compiler distribution. On that
- * machine, I found that gzip style archives decompressed about 20% faster than
- * the gcc-3.2 -O3 -fomit-frame-pointer compiled version. Your results will
- * depend on how large of a buffer is used for z_stream.next_in & next_out
- * (8K-32K worked best for my 256K cpu cache) and how much overhead there is in
- * stream processing I/O and crc32/addler32. In my case, this routine used
- * 70% of the cpu time and crc32 used 20%.
- *
- * I am confident that this version will work in the general case, but I have
- * not tested a wide variety of datasets or a wide variety of platforms.
- *
- * Jan-24-2003 -- Added -DUSE_MMX define for slightly faster inflating.
- * It should be a runtime flag instead of compile time flag...
- *
- * Jan-26-2003 -- Added runtime check for MMX support with cpuid instruction.
- * With -DUSE_MMX, only MMX code is compiled. With -DNO_MMX, only non-MMX code
- * is compiled. Without either option, runtime detection is enabled. Runtime
- * detection should work on all modern cpus and the recomended algorithm (flip
- * ID bit on eflags and then use the cpuid instruction) is used in many
- * multimedia applications. Tested under win2k with gcc-2.95 and gas-2.12
- * distributed with cygwin3. Compiling with gcc-2.95 -c inffast.S -o
- * inffast.obj generates a COFF object which can then be linked with MSVC++
- * compiled code. Tested under FreeBSD 4.7 with gcc-2.95.
- *
- * Jan-28-2003 -- Tested Athlon XP... MMX mode is slower than no MMX (and
- * slower than compiler generated code). Adjusted cpuid check to use the MMX
- * code only for Pentiums < P4 until I have more data on the P4. Speed
- * improvment is only about 15% on the Athlon when compared with code generated
- * with MSVC++. Not sure yet, but I think the P4 will also be slower using the
- * MMX mode because many of it's x86 ALU instructions execute in .5 cycles and
- * have less latency than MMX ops. Added code to buffer the last 11 bytes of
- * the input stream since the MMX code grabs bits in chunks of 32, which
- * differs from the inffast.c algorithm. I don't think there would have been
- * read overruns where a page boundary was crossed (a segfault), but there
- * could have been overruns when next_in ends on unaligned memory (unintialized
- * memory read).
- *
- * Mar-13-2003 -- P4 MMX is slightly slower than P4 NO_MMX. I created a C
- * version of the non-MMX code so that it doesn't depend on zstrm and zstate
- * structure offsets which are hard coded in this file. This was last tested
- * with zlib-1.2.0 which is currently in beta testing, newer versions of this
- * and inffas86.c can be found at http://www.eetbeetee.com/zlib/ and
- * http://www.charm.net/~christop/zlib/
- */
-
-
-/*
- * if you have underscore linking problems (_inflate_fast undefined), try
- * using -DGAS_COFF
- */
-#if ! defined( GAS_COFF ) && ! defined( GAS_ELF )
-
-#if defined( WIN32 ) || defined( __CYGWIN__ )
-#define GAS_COFF /* windows object format */
-#else
-#define GAS_ELF
-#endif
-
-#endif /* ! GAS_COFF && ! GAS_ELF */
-
-
-#if defined( GAS_COFF )
-
-/* coff externals have underscores */
-#define inflate_fast _inflate_fast
-#define inflate_fast_use_mmx _inflate_fast_use_mmx
-
-#endif /* GAS_COFF */
-
-
-.file "inffast.S"
-
-.globl inflate_fast
-
-.text
-.align 4,0
-.L_invalid_literal_length_code_msg:
-.string "invalid literal/length code"
-
-.align 4,0
-.L_invalid_distance_code_msg:
-.string "invalid distance code"
-
-.align 4,0
-.L_invalid_distance_too_far_msg:
-.string "invalid distance too far back"
-
-#if ! defined( NO_MMX )
-.align 4,0
-.L_mask: /* mask[N] = ( 1 << N ) - 1 */
-.long 0
-.long 1
-.long 3
-.long 7
-.long 15
-.long 31
-.long 63
-.long 127
-.long 255
-.long 511
-.long 1023
-.long 2047
-.long 4095
-.long 8191
-.long 16383
-.long 32767
-.long 65535
-.long 131071
-.long 262143
-.long 524287
-.long 1048575
-.long 2097151
-.long 4194303
-.long 8388607
-.long 16777215
-.long 33554431
-.long 67108863
-.long 134217727
-.long 268435455
-.long 536870911
-.long 1073741823
-.long 2147483647
-.long 4294967295
-#endif /* NO_MMX */
-
-.text
-
-/*
- * struct z_stream offsets, in zlib.h
- */
-#define next_in_strm 0 /* strm->next_in */
-#define avail_in_strm 4 /* strm->avail_in */
-#define next_out_strm 12 /* strm->next_out */
-#define avail_out_strm 16 /* strm->avail_out */
-#define msg_strm 24 /* strm->msg */
-#define state_strm 28 /* strm->state */
-
-/*
- * struct inflate_state offsets, in inflate.h
- */
-#define mode_state 0 /* state->mode */
-#define wsize_state 32 /* state->wsize */
-#define write_state 40 /* state->write */
-#define window_state 44 /* state->window */
-#define hold_state 48 /* state->hold */
-#define bits_state 52 /* state->bits */
-#define lencode_state 68 /* state->lencode */
-#define distcode_state 72 /* state->distcode */
-#define lenbits_state 76 /* state->lenbits */
-#define distbits_state 80 /* state->distbits */
-
-/*
- * inflate_fast's activation record
- */
-#define local_var_size 64 /* how much local space for vars */
-#define strm_sp 88 /* first arg: z_stream * (local_var_size + 24) */
-#define start_sp 92 /* second arg: unsigned int (local_var_size + 28) */
-
-/*
- * offsets for local vars on stack
- */
-#define out 60 /* unsigned char* */
-#define window 56 /* unsigned char* */
-#define wsize 52 /* unsigned int */
-#define write 48 /* unsigned int */
-#define in 44 /* unsigned char* */
-#define beg 40 /* unsigned char* */
-#define buf 28 /* char[ 12 ] */
-#define len 24 /* unsigned int */
-#define last 20 /* unsigned char* */
-#define end 16 /* unsigned char* */
-#define dcode 12 /* code* */
-#define lcode 8 /* code* */
-#define dmask 4 /* unsigned int */
-#define lmask 0 /* unsigned int */
-
-/*
- * typedef enum inflate_mode consts, in inflate.h
- */
-#define INFLATE_MODE_TYPE 11 /* state->mode flags enum-ed in inflate.h */
-#define INFLATE_MODE_BAD 26
-
-
-#if ! defined( USE_MMX ) && ! defined( NO_MMX )
-
-#define RUN_TIME_MMX
-
-#define CHECK_MMX 1
-#define DO_USE_MMX 2
-#define DONT_USE_MMX 3
-
-.globl inflate_fast_use_mmx
-
-.data
-
-.align 4,0
-inflate_fast_use_mmx: /* integer flag for run time control 1=check,2=mmx,3=no */
-.long CHECK_MMX
-
-#if defined( GAS_ELF )
-/* elf info */
-.type inflate_fast_use_mmx,@object
-.size inflate_fast_use_mmx,4
-#endif
-
-#endif /* RUN_TIME_MMX */
-
-#if defined( GAS_COFF )
-/* coff info: scl 2 = extern, type 32 = function */
-.def inflate_fast; .scl 2; .type 32; .endef
-#endif
-
-.text
-
-.align 32,0x90
-inflate_fast:
- pushl %edi
- pushl %esi
- pushl %ebp
- pushl %ebx
- pushf /* save eflags (strm_sp, state_sp assumes this is 32 bits) */
- subl $local_var_size, %esp
- cld
-
-#define strm_r %esi
-#define state_r %edi
-
- movl strm_sp(%esp), strm_r
- movl state_strm(strm_r), state_r
-
- /* in = strm->next_in;
- * out = strm->next_out;
- * last = in + strm->avail_in - 11;
- * beg = out - (start - strm->avail_out);
- * end = out + (strm->avail_out - 257);
- */
- movl avail_in_strm(strm_r), %edx
- movl next_in_strm(strm_r), %eax
-
- addl %eax, %edx /* avail_in += next_in */
- subl $11, %edx /* avail_in -= 11 */
-
- movl %eax, in(%esp)
- movl %edx, last(%esp)
-
- movl start_sp(%esp), %ebp
- movl avail_out_strm(strm_r), %ecx
- movl next_out_strm(strm_r), %ebx
-
- subl %ecx, %ebp /* start -= avail_out */
- negl %ebp /* start = -start */
- addl %ebx, %ebp /* start += next_out */
-
- subl $257, %ecx /* avail_out -= 257 */
- addl %ebx, %ecx /* avail_out += out */
-
- movl %ebx, out(%esp)
- movl %ebp, beg(%esp)
- movl %ecx, end(%esp)
-
- /* wsize = state->wsize;
- * write = state->write;
- * window = state->window;
- * hold = state->hold;
- * bits = state->bits;
- * lcode = state->lencode;
- * dcode = state->distcode;
- * lmask = ( 1 << state->lenbits ) - 1;
- * dmask = ( 1 << state->distbits ) - 1;
- */
-
- movl lencode_state(state_r), %eax
- movl distcode_state(state_r), %ecx
-
- movl %eax, lcode(%esp)
- movl %ecx, dcode(%esp)
-
- movl $1, %eax
- movl lenbits_state(state_r), %ecx
- shll %cl, %eax
- decl %eax
- movl %eax, lmask(%esp)
-
- movl $1, %eax
- movl distbits_state(state_r), %ecx
- shll %cl, %eax
- decl %eax
- movl %eax, dmask(%esp)
-
- movl wsize_state(state_r), %eax
- movl write_state(state_r), %ecx
- movl window_state(state_r), %edx
-
- movl %eax, wsize(%esp)
- movl %ecx, write(%esp)
- movl %edx, window(%esp)
-
- movl hold_state(state_r), %ebp
- movl bits_state(state_r), %ebx
-
-#undef strm_r
-#undef state_r
-
-#define in_r %esi
-#define from_r %esi
-#define out_r %edi
-
- movl in(%esp), in_r
- movl last(%esp), %ecx
- cmpl in_r, %ecx
- ja .L_align_long /* if in < last */
-
- addl $11, %ecx /* ecx = &in[ avail_in ] */
- subl in_r, %ecx /* ecx = avail_in */
- movl $12, %eax
- subl %ecx, %eax /* eax = 12 - avail_in */
- leal buf(%esp), %edi
- rep movsb /* memcpy( buf, in, avail_in ) */
- movl %eax, %ecx
- xorl %eax, %eax
- rep stosb /* memset( &buf[ avail_in ], 0, 12 - avail_in ) */
- leal buf(%esp), in_r /* in = buf */
- movl in_r, last(%esp) /* last = in, do just one iteration */
- jmp .L_is_aligned
-
- /* align in_r on long boundary */
-.L_align_long:
- testl $3, in_r
- jz .L_is_aligned
- xorl %eax, %eax
- movb (in_r), %al
- incl in_r
- movl %ebx, %ecx
- addl $8, %ebx
- shll %cl, %eax
- orl %eax, %ebp
- jmp .L_align_long
-
-.L_is_aligned:
- movl out(%esp), out_r
-
-#if defined( NO_MMX )
- jmp .L_do_loop
-#endif
-
-#if defined( USE_MMX )
- jmp .L_init_mmx
-#endif
-
-/*** Runtime MMX check ***/
-
-#if defined( RUN_TIME_MMX )
-.L_check_mmx:
- cmpl $DO_USE_MMX, inflate_fast_use_mmx
- je .L_init_mmx
- ja .L_do_loop /* > 2 */
-
- pushl %eax
- pushl %ebx
- pushl %ecx
- pushl %edx
- pushf
- movl (%esp), %eax /* copy eflags to eax */
- xorl $0x200000, (%esp) /* try toggling ID bit of eflags (bit 21)
- * to see if cpu supports cpuid...
- * ID bit method not supported by NexGen but
- * bios may load a cpuid instruction and
- * cpuid may be disabled on Cyrix 5-6x86 */
- popf
- pushf
- popl %edx /* copy new eflags to edx */
- xorl %eax, %edx /* test if ID bit is flipped */
- jz .L_dont_use_mmx /* not flipped if zero */
- xorl %eax, %eax
- cpuid
- cmpl $0x756e6547, %ebx /* check for GenuineIntel in ebx,ecx,edx */
- jne .L_dont_use_mmx
- cmpl $0x6c65746e, %ecx
- jne .L_dont_use_mmx
- cmpl $0x49656e69, %edx
- jne .L_dont_use_mmx
- movl $1, %eax
- cpuid /* get cpu features */
- shrl $8, %eax
- andl $15, %eax
- cmpl $6, %eax /* check for Pentium family, is 0xf for P4 */
- jne .L_dont_use_mmx
- testl $0x800000, %edx /* test if MMX feature is set (bit 23) */
- jnz .L_use_mmx
- jmp .L_dont_use_mmx
-.L_use_mmx:
- movl $DO_USE_MMX, inflate_fast_use_mmx
- jmp .L_check_mmx_pop
-.L_dont_use_mmx:
- movl $DONT_USE_MMX, inflate_fast_use_mmx
-.L_check_mmx_pop:
- popl %edx
- popl %ecx
- popl %ebx
- popl %eax
- jmp .L_check_mmx
-#endif
-
-
-/*** Non-MMX code ***/
-
-#if defined ( NO_MMX ) || defined( RUN_TIME_MMX )
-
-#define hold_r %ebp
-#define bits_r %bl
-#define bitslong_r %ebx
-
-.align 32,0x90
-.L_while_test:
- /* while (in < last && out < end)
- */
- cmpl out_r, end(%esp)
- jbe .L_break_loop /* if (out >= end) */
-
- cmpl in_r, last(%esp)
- jbe .L_break_loop
-
-.L_do_loop:
- /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out
- *
- * do {
- * if (bits < 15) {
- * hold |= *((unsigned short *)in)++ << bits;
- * bits += 16
- * }
- * this = lcode[hold & lmask]
- */
- cmpb $15, bits_r
- ja .L_get_length_code /* if (15 < bits) */
-
- xorl %eax, %eax
- lodsw /* al = *(ushort *)in++ */
- movb bits_r, %cl /* cl = bits, needs it for shifting */
- addb $16, bits_r /* bits += 16 */
- shll %cl, %eax
- orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */
-
-.L_get_length_code:
- movl lmask(%esp), %edx /* edx = lmask */
- movl lcode(%esp), %ecx /* ecx = lcode */
- andl hold_r, %edx /* edx &= hold */
- movl (%ecx,%edx,4), %eax /* eax = lcode[hold & lmask] */
-
-.L_dolen:
- /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out
- *
- * dolen:
- * bits -= this.bits;
- * hold >>= this.bits
- */
- movb %ah, %cl /* cl = this.bits */
- subb %ah, bits_r /* bits -= this.bits */
- shrl %cl, hold_r /* hold >>= this.bits */
-
- /* check if op is a literal
- * if (op == 0) {
- * PUP(out) = this.val;
- * }
- */
- testb %al, %al
- jnz .L_test_for_length_base /* if (op != 0) 45.7% */
-
- shrl $16, %eax /* output this.val char */
- stosb
- jmp .L_while_test
-
-.L_test_for_length_base:
- /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = len
- *
- * else if (op & 16) {
- * len = this.val
- * op &= 15
- * if (op) {
- * if (op > bits) {
- * hold |= *((unsigned short *)in)++ << bits;
- * bits += 16
- * }
- * len += hold & mask[op];
- * bits -= op;
- * hold >>= op;
- * }
- */
-#define len_r %edx
- movl %eax, len_r /* len = this */
- shrl $16, len_r /* len = this.val */
- movb %al, %cl
-
- testb $16, %al
- jz .L_test_for_second_level_length /* if ((op & 16) == 0) 8% */
- andb $15, %cl /* op &= 15 */
- jz .L_save_len /* if (!op) */
- cmpb %cl, bits_r
- jae .L_add_bits_to_len /* if (op <= bits) */
-
- movb %cl, %ch /* stash op in ch, freeing cl */
- xorl %eax, %eax
- lodsw /* al = *(ushort *)in++ */
- movb bits_r, %cl /* cl = bits, needs it for shifting */
- addb $16, bits_r /* bits += 16 */
- shll %cl, %eax
- orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */
- movb %ch, %cl /* move op back to ecx */
-
-.L_add_bits_to_len:
- movl $1, %eax
- shll %cl, %eax
- decl %eax
- subb %cl, bits_r
- andl hold_r, %eax /* eax &= hold */
- shrl %cl, hold_r
- addl %eax, len_r /* len += hold & mask[op] */
-
-.L_save_len:
- movl len_r, len(%esp) /* save len */
-#undef len_r
-
-.L_decode_distance:
- /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = dist
- *
- * if (bits < 15) {
- * hold |= *((unsigned short *)in)++ << bits;
- * bits += 16
- * }
- * this = dcode[hold & dmask];
- * dodist:
- * bits -= this.bits;
- * hold >>= this.bits;
- * op = this.op;
- */
-
- cmpb $15, bits_r
- ja .L_get_distance_code /* if (15 < bits) */
-
- xorl %eax, %eax
- lodsw /* al = *(ushort *)in++ */
- movb bits_r, %cl /* cl = bits, needs it for shifting */
- addb $16, bits_r /* bits += 16 */
- shll %cl, %eax
- orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */
-
-.L_get_distance_code:
- movl dmask(%esp), %edx /* edx = dmask */
- movl dcode(%esp), %ecx /* ecx = dcode */
- andl hold_r, %edx /* edx &= hold */
- movl (%ecx,%edx,4), %eax /* eax = dcode[hold & dmask] */
-
-#define dist_r %edx
-.L_dodist:
- movl %eax, dist_r /* dist = this */
- shrl $16, dist_r /* dist = this.val */
- movb %ah, %cl
- subb %ah, bits_r /* bits -= this.bits */
- shrl %cl, hold_r /* hold >>= this.bits */
-
- /* if (op & 16) {
- * dist = this.val
- * op &= 15
- * if (op > bits) {
- * hold |= *((unsigned short *)in)++ << bits;
- * bits += 16
- * }
- * dist += hold & mask[op];
- * bits -= op;
- * hold >>= op;
- */
- movb %al, %cl /* cl = this.op */
-
- testb $16, %al /* if ((op & 16) == 0) */
- jz .L_test_for_second_level_dist
- andb $15, %cl /* op &= 15 */
- jz .L_check_dist_one
- cmpb %cl, bits_r
- jae .L_add_bits_to_dist /* if (op <= bits) 97.6% */
-
- movb %cl, %ch /* stash op in ch, freeing cl */
- xorl %eax, %eax
- lodsw /* al = *(ushort *)in++ */
- movb bits_r, %cl /* cl = bits, needs it for shifting */
- addb $16, bits_r /* bits += 16 */
- shll %cl, %eax
- orl %eax, hold_r /* hold |= *((ushort *)in)++ << bits */
- movb %ch, %cl /* move op back to ecx */
-
-.L_add_bits_to_dist:
- movl $1, %eax
- shll %cl, %eax
- decl %eax /* (1 << op) - 1 */
- subb %cl, bits_r
- andl hold_r, %eax /* eax &= hold */
- shrl %cl, hold_r
- addl %eax, dist_r /* dist += hold & ((1 << op) - 1) */
- jmp .L_check_window
-
-.L_check_window:
- /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
- * %ecx = nbytes
- *
- * nbytes = out - beg;
- * if (dist <= nbytes) {
- * from = out - dist;
- * do {
- * PUP(out) = PUP(from);
- * } while (--len > 0) {
- * }
- */
-
- movl in_r, in(%esp) /* save in so from can use it's reg */
- movl out_r, %eax
- subl beg(%esp), %eax /* nbytes = out - beg */
-
- cmpl dist_r, %eax
- jb .L_clip_window /* if (dist > nbytes) 4.2% */
-
- movl len(%esp), %ecx
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
-
- subl $3, %ecx
- movb (from_r), %al
- movb %al, (out_r)
- movb 1(from_r), %al
- movb 2(from_r), %dl
- addl $3, from_r
- movb %al, 1(out_r)
- movb %dl, 2(out_r)
- addl $3, out_r
- rep movsb
-
- movl in(%esp), in_r /* move in back to %esi, toss from */
- jmp .L_while_test
-
-.align 16,0x90
-.L_check_dist_one:
- cmpl $1, dist_r
- jne .L_check_window
- cmpl out_r, beg(%esp)
- je .L_check_window
-
- decl out_r
- movl len(%esp), %ecx
- movb (out_r), %al
- subl $3, %ecx
-
- movb %al, 1(out_r)
- movb %al, 2(out_r)
- movb %al, 3(out_r)
- addl $4, out_r
- rep stosb
-
- jmp .L_while_test
-
-.align 16,0x90
-.L_test_for_second_level_length:
- /* else if ((op & 64) == 0) {
- * this = lcode[this.val + (hold & mask[op])];
- * }
- */
- testb $64, %al
- jnz .L_test_for_end_of_block /* if ((op & 64) != 0) */
-
- movl $1, %eax
- shll %cl, %eax
- decl %eax
- andl hold_r, %eax /* eax &= hold */
- addl %edx, %eax /* eax += this.val */
- movl lcode(%esp), %edx /* edx = lcode */
- movl (%edx,%eax,4), %eax /* eax = lcode[val + (hold&mask[op])] */
- jmp .L_dolen
-
-.align 16,0x90
-.L_test_for_second_level_dist:
- /* else if ((op & 64) == 0) {
- * this = dcode[this.val + (hold & mask[op])];
- * }
- */
- testb $64, %al
- jnz .L_invalid_distance_code /* if ((op & 64) != 0) */
-
- movl $1, %eax
- shll %cl, %eax
- decl %eax
- andl hold_r, %eax /* eax &= hold */
- addl %edx, %eax /* eax += this.val */
- movl dcode(%esp), %edx /* edx = dcode */
- movl (%edx,%eax,4), %eax /* eax = dcode[val + (hold&mask[op])] */
- jmp .L_dodist
-
-.align 16,0x90
-.L_clip_window:
- /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
- * %ecx = nbytes
- *
- * else {
- * if (dist > wsize) {
- * invalid distance
- * }
- * from = window;
- * nbytes = dist - nbytes;
- * if (write == 0) {
- * from += wsize - nbytes;
- */
-#define nbytes_r %ecx
- movl %eax, nbytes_r
- movl wsize(%esp), %eax /* prepare for dist compare */
- negl nbytes_r /* nbytes = -nbytes */
- movl window(%esp), from_r /* from = window */
-
- cmpl dist_r, %eax
- jb .L_invalid_distance_too_far /* if (dist > wsize) */
-
- addl dist_r, nbytes_r /* nbytes = dist - nbytes */
- cmpl $0, write(%esp)
- jne .L_wrap_around_window /* if (write != 0) */
-
- subl nbytes_r, %eax
- addl %eax, from_r /* from += wsize - nbytes */
-
- /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
- * %ecx = nbytes, %eax = len
- *
- * if (nbytes < len) {
- * len -= nbytes;
- * do {
- * PUP(out) = PUP(from);
- * } while (--nbytes);
- * from = out - dist;
- * }
- * }
- */
-#define len_r %eax
- movl len(%esp), len_r
- cmpl nbytes_r, len_r
- jbe .L_do_copy1 /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
- jmp .L_do_copy1
-
- cmpl nbytes_r, len_r
- jbe .L_do_copy1 /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
- jmp .L_do_copy1
-
-.L_wrap_around_window:
- /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
- * %ecx = nbytes, %eax = write, %eax = len
- *
- * else if (write < nbytes) {
- * from += wsize + write - nbytes;
- * nbytes -= write;
- * if (nbytes < len) {
- * len -= nbytes;
- * do {
- * PUP(out) = PUP(from);
- * } while (--nbytes);
- * from = window;
- * nbytes = write;
- * if (nbytes < len) {
- * len -= nbytes;
- * do {
- * PUP(out) = PUP(from);
- * } while(--nbytes);
- * from = out - dist;
- * }
- * }
- * }
- */
-#define write_r %eax
- movl write(%esp), write_r
- cmpl write_r, nbytes_r
- jbe .L_contiguous_in_window /* if (write >= nbytes) */
-
- addl wsize(%esp), from_r
- addl write_r, from_r
- subl nbytes_r, from_r /* from += wsize + write - nbytes */
- subl write_r, nbytes_r /* nbytes -= write */
-#undef write_r
-
- movl len(%esp), len_r
- cmpl nbytes_r, len_r
- jbe .L_do_copy1 /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl window(%esp), from_r /* from = window */
- movl write(%esp), nbytes_r /* nbytes = write */
- cmpl nbytes_r, len_r
- jbe .L_do_copy1 /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
- jmp .L_do_copy1
-
-.L_contiguous_in_window:
- /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
- * %ecx = nbytes, %eax = write, %eax = len
- *
- * else {
- * from += write - nbytes;
- * if (nbytes < len) {
- * len -= nbytes;
- * do {
- * PUP(out) = PUP(from);
- * } while (--nbytes);
- * from = out - dist;
- * }
- * }
- */
-#define write_r %eax
- addl write_r, from_r
- subl nbytes_r, from_r /* from += write - nbytes */
-#undef write_r
-
- movl len(%esp), len_r
- cmpl nbytes_r, len_r
- jbe .L_do_copy1 /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
-
-.L_do_copy1:
- /* regs: %esi = from, %esi = in, %ebp = hold, %bl = bits, %edi = out
- * %eax = len
- *
- * while (len > 0) {
- * PUP(out) = PUP(from);
- * len--;
- * }
- * }
- * } while (in < last && out < end);
- */
-#undef nbytes_r
-#define in_r %esi
- movl len_r, %ecx
- rep movsb
-
- movl in(%esp), in_r /* move in back to %esi, toss from */
- jmp .L_while_test
-
-#undef len_r
-#undef dist_r
-
-#endif /* NO_MMX || RUN_TIME_MMX */
-
-
-/*** MMX code ***/
-
-#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
-
-.align 32,0x90
-.L_init_mmx:
- emms
-
-#undef bits_r
-#undef bitslong_r
-#define bitslong_r %ebp
-#define hold_mm %mm0
- movd %ebp, hold_mm
- movl %ebx, bitslong_r
-
-#define used_mm %mm1
-#define dmask2_mm %mm2
-#define lmask2_mm %mm3
-#define lmask_mm %mm4
-#define dmask_mm %mm5
-#define tmp_mm %mm6
-
- movd lmask(%esp), lmask_mm
- movq lmask_mm, lmask2_mm
- movd dmask(%esp), dmask_mm
- movq dmask_mm, dmask2_mm
- pxor used_mm, used_mm
- movl lcode(%esp), %ebx /* ebx = lcode */
- jmp .L_do_loop_mmx
-
-.align 32,0x90
-.L_while_test_mmx:
- /* while (in < last && out < end)
- */
- cmpl out_r, end(%esp)
- jbe .L_break_loop /* if (out >= end) */
-
- cmpl in_r, last(%esp)
- jbe .L_break_loop
-
-.L_do_loop_mmx:
- psrlq used_mm, hold_mm /* hold_mm >>= last bit length */
-
- cmpl $32, bitslong_r
- ja .L_get_length_code_mmx /* if (32 < bits) */
-
- movd bitslong_r, tmp_mm
- movd (in_r), %mm7
- addl $4, in_r
- psllq tmp_mm, %mm7
- addl $32, bitslong_r
- por %mm7, hold_mm /* hold_mm |= *((uint *)in)++ << bits */
-
-.L_get_length_code_mmx:
- pand hold_mm, lmask_mm
- movd lmask_mm, %eax
- movq lmask2_mm, lmask_mm
- movl (%ebx,%eax,4), %eax /* eax = lcode[hold & lmask] */
-
-.L_dolen_mmx:
- movzbl %ah, %ecx /* ecx = this.bits */
- movd %ecx, used_mm
- subl %ecx, bitslong_r /* bits -= this.bits */
-
- testb %al, %al
- jnz .L_test_for_length_base_mmx /* if (op != 0) 45.7% */
-
- shrl $16, %eax /* output this.val char */
- stosb
- jmp .L_while_test_mmx
-
-.L_test_for_length_base_mmx:
-#define len_r %edx
- movl %eax, len_r /* len = this */
- shrl $16, len_r /* len = this.val */
-
- testb $16, %al
- jz .L_test_for_second_level_length_mmx /* if ((op & 16) == 0) 8% */
- andl $15, %eax /* op &= 15 */
- jz .L_decode_distance_mmx /* if (!op) */
-
- psrlq used_mm, hold_mm /* hold_mm >>= last bit length */
- movd %eax, used_mm
- movd hold_mm, %ecx
- subl %eax, bitslong_r
- andl .L_mask(,%eax,4), %ecx
- addl %ecx, len_r /* len += hold & mask[op] */
-
-.L_decode_distance_mmx:
- psrlq used_mm, hold_mm /* hold_mm >>= last bit length */
-
- cmpl $32, bitslong_r
- ja .L_get_dist_code_mmx /* if (32 < bits) */
-
- movd bitslong_r, tmp_mm
- movd (in_r), %mm7
- addl $4, in_r
- psllq tmp_mm, %mm7
- addl $32, bitslong_r
- por %mm7, hold_mm /* hold_mm |= *((uint *)in)++ << bits */
-
-.L_get_dist_code_mmx:
- movl dcode(%esp), %ebx /* ebx = dcode */
- pand hold_mm, dmask_mm
- movd dmask_mm, %eax
- movq dmask2_mm, dmask_mm
- movl (%ebx,%eax,4), %eax /* eax = dcode[hold & lmask] */
-
-.L_dodist_mmx:
-#define dist_r %ebx
- movzbl %ah, %ecx /* ecx = this.bits */
- movl %eax, dist_r
- shrl $16, dist_r /* dist = this.val */
- subl %ecx, bitslong_r /* bits -= this.bits */
- movd %ecx, used_mm
-
- testb $16, %al /* if ((op & 16) == 0) */
- jz .L_test_for_second_level_dist_mmx
- andl $15, %eax /* op &= 15 */
- jz .L_check_dist_one_mmx
-
-.L_add_bits_to_dist_mmx:
- psrlq used_mm, hold_mm /* hold_mm >>= last bit length */
- movd %eax, used_mm /* save bit length of current op */
- movd hold_mm, %ecx /* get the next bits on input stream */
- subl %eax, bitslong_r /* bits -= op bits */
- andl .L_mask(,%eax,4), %ecx /* ecx = hold & mask[op] */
- addl %ecx, dist_r /* dist += hold & mask[op] */
-
-.L_check_window_mmx:
- movl in_r, in(%esp) /* save in so from can use it's reg */
- movl out_r, %eax
- subl beg(%esp), %eax /* nbytes = out - beg */
-
- cmpl dist_r, %eax
- jb .L_clip_window_mmx /* if (dist > nbytes) 4.2% */
-
- movl len_r, %ecx
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
-
- subl $3, %ecx
- movb (from_r), %al
- movb %al, (out_r)
- movb 1(from_r), %al
- movb 2(from_r), %dl
- addl $3, from_r
- movb %al, 1(out_r)
- movb %dl, 2(out_r)
- addl $3, out_r
- rep movsb
-
- movl in(%esp), in_r /* move in back to %esi, toss from */
- movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */
- jmp .L_while_test_mmx
-
-.align 16,0x90
-.L_check_dist_one_mmx:
- cmpl $1, dist_r
- jne .L_check_window_mmx
- cmpl out_r, beg(%esp)
- je .L_check_window_mmx
-
- decl out_r
- movl len_r, %ecx
- movb (out_r), %al
- subl $3, %ecx
-
- movb %al, 1(out_r)
- movb %al, 2(out_r)
- movb %al, 3(out_r)
- addl $4, out_r
- rep stosb
-
- movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */
- jmp .L_while_test_mmx
-
-.align 16,0x90
-.L_test_for_second_level_length_mmx:
- testb $64, %al
- jnz .L_test_for_end_of_block /* if ((op & 64) != 0) */
-
- andl $15, %eax
- psrlq used_mm, hold_mm /* hold_mm >>= last bit length */
- movd hold_mm, %ecx
- andl .L_mask(,%eax,4), %ecx
- addl len_r, %ecx
- movl (%ebx,%ecx,4), %eax /* eax = lcode[hold & lmask] */
- jmp .L_dolen_mmx
-
-.align 16,0x90
-.L_test_for_second_level_dist_mmx:
- testb $64, %al
- jnz .L_invalid_distance_code /* if ((op & 64) != 0) */
-
- andl $15, %eax
- psrlq used_mm, hold_mm /* hold_mm >>= last bit length */
- movd hold_mm, %ecx
- andl .L_mask(,%eax,4), %ecx
- movl dcode(%esp), %eax /* ecx = dcode */
- addl dist_r, %ecx
- movl (%eax,%ecx,4), %eax /* eax = lcode[hold & lmask] */
- jmp .L_dodist_mmx
-
-.align 16,0x90
-.L_clip_window_mmx:
-#define nbytes_r %ecx
- movl %eax, nbytes_r
- movl wsize(%esp), %eax /* prepare for dist compare */
- negl nbytes_r /* nbytes = -nbytes */
- movl window(%esp), from_r /* from = window */
-
- cmpl dist_r, %eax
- jb .L_invalid_distance_too_far /* if (dist > wsize) */
-
- addl dist_r, nbytes_r /* nbytes = dist - nbytes */
- cmpl $0, write(%esp)
- jne .L_wrap_around_window_mmx /* if (write != 0) */
-
- subl nbytes_r, %eax
- addl %eax, from_r /* from += wsize - nbytes */
-
- cmpl nbytes_r, len_r
- jbe .L_do_copy1_mmx /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
- jmp .L_do_copy1_mmx
-
- cmpl nbytes_r, len_r
- jbe .L_do_copy1_mmx /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
- jmp .L_do_copy1_mmx
-
-.L_wrap_around_window_mmx:
-#define write_r %eax
- movl write(%esp), write_r
- cmpl write_r, nbytes_r
- jbe .L_contiguous_in_window_mmx /* if (write >= nbytes) */
-
- addl wsize(%esp), from_r
- addl write_r, from_r
- subl nbytes_r, from_r /* from += wsize + write - nbytes */
- subl write_r, nbytes_r /* nbytes -= write */
-#undef write_r
-
- cmpl nbytes_r, len_r
- jbe .L_do_copy1_mmx /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl window(%esp), from_r /* from = window */
- movl write(%esp), nbytes_r /* nbytes = write */
- cmpl nbytes_r, len_r
- jbe .L_do_copy1_mmx /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
- jmp .L_do_copy1_mmx
-
-.L_contiguous_in_window_mmx:
-#define write_r %eax
- addl write_r, from_r
- subl nbytes_r, from_r /* from += write - nbytes */
-#undef write_r
-
- cmpl nbytes_r, len_r
- jbe .L_do_copy1_mmx /* if (nbytes >= len) */
-
- subl nbytes_r, len_r /* len -= nbytes */
- rep movsb
- movl out_r, from_r
- subl dist_r, from_r /* from = out - dist */
-
-.L_do_copy1_mmx:
-#undef nbytes_r
-#define in_r %esi
- movl len_r, %ecx
- rep movsb
-
- movl in(%esp), in_r /* move in back to %esi, toss from */
- movl lcode(%esp), %ebx /* move lcode back to %ebx, toss dist */
- jmp .L_while_test_mmx
-
-#undef hold_r
-#undef bitslong_r
-
-#endif /* USE_MMX || RUN_TIME_MMX */
-
-
-/*** USE_MMX, NO_MMX, and RUNTIME_MMX from here on ***/
-
-.L_invalid_distance_code:
- /* else {
- * strm->msg = "invalid distance code";
- * state->mode = BAD;
- * }
- */
- movl $.L_invalid_distance_code_msg, %ecx
- movl $INFLATE_MODE_BAD, %edx
- jmp .L_update_stream_state
-
-.L_test_for_end_of_block:
- /* else if (op & 32) {
- * state->mode = TYPE;
- * break;
- * }
- */
- testb $32, %al
- jz .L_invalid_literal_length_code /* if ((op & 32) == 0) */
-
- movl $0, %ecx
- movl $INFLATE_MODE_TYPE, %edx
- jmp .L_update_stream_state
-
-.L_invalid_literal_length_code:
- /* else {
- * strm->msg = "invalid literal/length code";
- * state->mode = BAD;
- * }
- */
- movl $.L_invalid_literal_length_code_msg, %ecx
- movl $INFLATE_MODE_BAD, %edx
- jmp .L_update_stream_state
-
-.L_invalid_distance_too_far:
- /* strm->msg = "invalid distance too far back";
- * state->mode = BAD;
- */
- movl in(%esp), in_r /* from_r has in's reg, put in back */
- movl $.L_invalid_distance_too_far_msg, %ecx
- movl $INFLATE_MODE_BAD, %edx
- jmp .L_update_stream_state
-
-.L_update_stream_state:
- /* set strm->msg = %ecx, strm->state->mode = %edx */
- movl strm_sp(%esp), %eax
- testl %ecx, %ecx /* if (msg != NULL) */
- jz .L_skip_msg
- movl %ecx, msg_strm(%eax) /* strm->msg = msg */
-.L_skip_msg:
- movl state_strm(%eax), %eax /* state = strm->state */
- movl %edx, mode_state(%eax) /* state->mode = edx (BAD | TYPE) */
- jmp .L_break_loop
-
-.align 32,0x90
-.L_break_loop:
-
-/*
- * Regs:
- *
- * bits = %ebp when mmx, and in %ebx when non-mmx
- * hold = %hold_mm when mmx, and in %ebp when non-mmx
- * in = %esi
- * out = %edi
- */
-
-#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
-
-#if defined( RUN_TIME_MMX )
-
- cmpl $DO_USE_MMX, inflate_fast_use_mmx
- jne .L_update_next_in
-
-#endif /* RUN_TIME_MMX */
-
- movl %ebp, %ebx
-
-.L_update_next_in:
-
-#endif
-
-#define strm_r %eax
-#define state_r %edx
-
- /* len = bits >> 3;
- * in -= len;
- * bits -= len << 3;
- * hold &= (1U << bits) - 1;
- * state->hold = hold;
- * state->bits = bits;
- * strm->next_in = in;
- * strm->next_out = out;
- */
- movl strm_sp(%esp), strm_r
- movl %ebx, %ecx
- movl state_strm(strm_r), state_r
- shrl $3, %ecx
- subl %ecx, in_r
- shll $3, %ecx
- subl %ecx, %ebx
- movl out_r, next_out_strm(strm_r)
- movl %ebx, bits_state(state_r)
- movl %ebx, %ecx
-
- leal buf(%esp), %ebx
- cmpl %ebx, last(%esp)
- jne .L_buf_not_used /* if buf != last */
-
- subl %ebx, in_r /* in -= buf */
- movl next_in_strm(strm_r), %ebx
- movl %ebx, last(%esp) /* last = strm->next_in */
- addl %ebx, in_r /* in += strm->next_in */
- movl avail_in_strm(strm_r), %ebx
- subl $11, %ebx
- addl %ebx, last(%esp) /* last = &strm->next_in[ avail_in - 11 ] */
-
-.L_buf_not_used:
- movl in_r, next_in_strm(strm_r)
-
- movl $1, %ebx
- shll %cl, %ebx
- decl %ebx
-
-#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
-
-#if defined( RUN_TIME_MMX )
-
- cmpl $DO_USE_MMX, inflate_fast_use_mmx
- jne .L_update_hold
-
-#endif /* RUN_TIME_MMX */
-
- psrlq used_mm, hold_mm /* hold_mm >>= last bit length */
- movd hold_mm, %ebp
-
- emms
-
-.L_update_hold:
-
-#endif /* USE_MMX || RUN_TIME_MMX */
-
- andl %ebx, %ebp
- movl %ebp, hold_state(state_r)
-
-#define last_r %ebx
-
- /* strm->avail_in = in < last ? 11 + (last - in) : 11 - (in - last) */
- movl last(%esp), last_r
- cmpl in_r, last_r
- jbe .L_last_is_smaller /* if (in >= last) */
-
- subl in_r, last_r /* last -= in */
- addl $11, last_r /* last += 11 */
- movl last_r, avail_in_strm(strm_r)
- jmp .L_fixup_out
-.L_last_is_smaller:
- subl last_r, in_r /* in -= last */
- negl in_r /* in = -in */
- addl $11, in_r /* in += 11 */
- movl in_r, avail_in_strm(strm_r)
-
-#undef last_r
-#define end_r %ebx
-
-.L_fixup_out:
- /* strm->avail_out = out < end ? 257 + (end - out) : 257 - (out - end)*/
- movl end(%esp), end_r
- cmpl out_r, end_r
- jbe .L_end_is_smaller /* if (out >= end) */
-
- subl out_r, end_r /* end -= out */
- addl $257, end_r /* end += 257 */
- movl end_r, avail_out_strm(strm_r)
- jmp .L_done
-.L_end_is_smaller:
- subl end_r, out_r /* out -= end */
- negl out_r /* out = -out */
- addl $257, out_r /* out += 257 */
- movl out_r, avail_out_strm(strm_r)
-
-#undef end_r
-#undef strm_r
-#undef state_r
-
-.L_done:
- addl $local_var_size, %esp
- popf
- popl %ebx
- popl %ebp
- popl %esi
- popl %edi
- ret
-
-#if defined( GAS_ELF )
-/* elf info */
-.type inflate_fast,@function
-.size inflate_fast,.-inflate_fast
-#endif
+++ /dev/null
-
-#include "zfstream.h"
-
-int main() {
-
- // Construct a stream object with this filebuffer. Anything sent
- // to this stream will go to standard out.
- gzofstream os( 1, ios::out );
-
- // This text is getting compressed and sent to stdout.
- // To prove this, run 'test | zcat'.
- os << "Hello, Mommy" << endl;
-
- os << setcompressionlevel( Z_NO_COMPRESSION );
- os << "hello, hello, hi, ho!" << endl;
-
- setcompressionlevel( os, Z_DEFAULT_COMPRESSION )
- << "I'm compressing again" << endl;
-
- os.close();
-
- return 0;
-
-}
+++ /dev/null
-
-#include "zfstream.h"
-
-gzfilebuf::gzfilebuf() :
- file(NULL),
- mode(0),
- own_file_descriptor(0)
-{ }
-
-gzfilebuf::~gzfilebuf() {
-
- sync();
- if ( own_file_descriptor )
- close();
-
-}
-
-gzfilebuf *gzfilebuf::open( const char *name,
- int io_mode ) {
-
- if ( is_open() )
- return NULL;
-
- char char_mode[10];
- char *p = char_mode;
-
- if ( io_mode & ios::in ) {
- mode = ios::in;
- *p++ = 'r';
- } else if ( io_mode & ios::app ) {
- mode = ios::app;
- *p++ = 'a';
- } else {
- mode = ios::out;
- *p++ = 'w';
- }
-
- if ( io_mode & ios::binary ) {
- mode |= ios::binary;
- *p++ = 'b';
- }
-
- // Hard code the compression level
- if ( io_mode & (ios::out|ios::app )) {
- *p++ = '9';
- }
-
- // Put the end-of-string indicator
- *p = '\0';
-
- if ( (file = gzopen(name, char_mode)) == NULL )
- return NULL;
-
- own_file_descriptor = 1;
-
- return this;
-
-}
-
-gzfilebuf *gzfilebuf::attach( int file_descriptor,
- int io_mode ) {
-
- if ( is_open() )
- return NULL;
-
- char char_mode[10];
- char *p = char_mode;
-
- if ( io_mode & ios::in ) {
- mode = ios::in;
- *p++ = 'r';
- } else if ( io_mode & ios::app ) {
- mode = ios::app;
- *p++ = 'a';
- } else {
- mode = ios::out;
- *p++ = 'w';
- }
-
- if ( io_mode & ios::binary ) {
- mode |= ios::binary;
- *p++ = 'b';
- }
-
- // Hard code the compression level
- if ( io_mode & (ios::out|ios::app )) {
- *p++ = '9';
- }
-
- // Put the end-of-string indicator
- *p = '\0';
-
- if ( (file = gzdopen(file_descriptor, char_mode)) == NULL )
- return NULL;
-
- own_file_descriptor = 0;
-
- return this;
-
-}
-
-gzfilebuf *gzfilebuf::close() {
-
- if ( is_open() ) {
-
- sync();
- gzclose( file );
- file = NULL;
-
- }
-
- return this;
-
-}
-
-int gzfilebuf::setcompressionlevel( int comp_level ) {
-
- return gzsetparams(file, comp_level, -2);
-
-}
-
-int gzfilebuf::setcompressionstrategy( int comp_strategy ) {
-
- return gzsetparams(file, -2, comp_strategy);
-
-}
-
-
-streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) {
-
- return streampos(EOF);
-
-}
-
-int gzfilebuf::underflow() {
-
- // If the file hasn't been opened for reading, error.
- if ( !is_open() || !(mode & ios::in) )
- return EOF;
-
- // if a buffer doesn't exists, allocate one.
- if ( !base() ) {
-
- if ( (allocate()) == EOF )
- return EOF;
- setp(0,0);
-
- } else {
-
- if ( in_avail() )
- return (unsigned char) *gptr();
-
- if ( out_waiting() ) {
- if ( flushbuf() == EOF )
- return EOF;
- }
-
- }
-
- // Attempt to fill the buffer.
-
- int result = fillbuf();
- if ( result == EOF ) {
- // disable get area
- setg(0,0,0);
- return EOF;
- }
-
- return (unsigned char) *gptr();
-
-}
-
-int gzfilebuf::overflow( int c ) {
-
- if ( !is_open() || !(mode & ios::out) )
- return EOF;
-
- if ( !base() ) {
- if ( allocate() == EOF )
- return EOF;
- setg(0,0,0);
- } else {
- if (in_avail()) {
- return EOF;
- }
- if (out_waiting()) {
- if (flushbuf() == EOF)
- return EOF;
- }
- }
-
- int bl = blen();
- setp( base(), base() + bl);
-
- if ( c != EOF ) {
-
- *pptr() = c;
- pbump(1);
-
- }
-
- return 0;
-
-}
-
-int gzfilebuf::sync() {
-
- if ( !is_open() )
- return EOF;
-
- if ( out_waiting() )
- return flushbuf();
-
- return 0;
-
-}
-
-int gzfilebuf::flushbuf() {
-
- int n;
- char *q;
-
- q = pbase();
- n = pptr() - q;
-
- if ( gzwrite( file, q, n) < n )
- return EOF;
-
- setp(0,0);
-
- return 0;
-
-}
-
-int gzfilebuf::fillbuf() {
-
- int required;
- char *p;
-
- p = base();
-
- required = blen();
-
- int t = gzread( file, p, required );
-
- if ( t <= 0) return EOF;
-
- setg( base(), base(), base()+t);
-
- return t;
-
-}
-
-gzfilestream_common::gzfilestream_common() :
- ios( gzfilestream_common::rdbuf() )
-{ }
-
-gzfilestream_common::~gzfilestream_common()
-{ }
-
-void gzfilestream_common::attach( int fd, int io_mode ) {
-
- if ( !buffer.attach( fd, io_mode) )
- clear( ios::failbit | ios::badbit );
- else
- clear();
-
-}
-
-void gzfilestream_common::open( const char *name, int io_mode ) {
-
- if ( !buffer.open( name, io_mode ) )
- clear( ios::failbit | ios::badbit );
- else
- clear();
-
-}
-
-void gzfilestream_common::close() {
-
- if ( !buffer.close() )
- clear( ios::failbit | ios::badbit );
-
-}
-
-gzfilebuf *gzfilestream_common::rdbuf()
-{
- return &buffer;
-}
-
-gzifstream::gzifstream() :
- ios( gzfilestream_common::rdbuf() )
-{
- clear( ios::badbit );
-}
-
-gzifstream::gzifstream( const char *name, int io_mode ) :
- ios( gzfilestream_common::rdbuf() )
-{
- gzfilestream_common::open( name, io_mode );
-}
-
-gzifstream::gzifstream( int fd, int io_mode ) :
- ios( gzfilestream_common::rdbuf() )
-{
- gzfilestream_common::attach( fd, io_mode );
-}
-
-gzifstream::~gzifstream() { }
-
-gzofstream::gzofstream() :
- ios( gzfilestream_common::rdbuf() )
-{
- clear( ios::badbit );
-}
-
-gzofstream::gzofstream( const char *name, int io_mode ) :
- ios( gzfilestream_common::rdbuf() )
-{
- gzfilestream_common::open( name, io_mode );
-}
-
-gzofstream::gzofstream( int fd, int io_mode ) :
- ios( gzfilestream_common::rdbuf() )
-{
- gzfilestream_common::attach( fd, io_mode );
-}
-
-gzofstream::~gzofstream() { }
+++ /dev/null
-
-#ifndef zfstream_h
-#define zfstream_h
-
-#include <fstream.h>
-#include "zlib.h"
-
-class gzfilebuf : public streambuf {
-
-public:
-
- gzfilebuf( );
- virtual ~gzfilebuf();
-
- gzfilebuf *open( const char *name, int io_mode );
- gzfilebuf *attach( int file_descriptor, int io_mode );
- gzfilebuf *close();
-
- int setcompressionlevel( int comp_level );
- int setcompressionstrategy( int comp_strategy );
-
- inline int is_open() const { return (file !=NULL); }
-
- virtual streampos seekoff( streamoff, ios::seek_dir, int );
-
- virtual int sync();
-
-protected:
-
- virtual int underflow();
- virtual int overflow( int = EOF );
-
-private:
-
- gzFile file;
- short mode;
- short own_file_descriptor;
-
- int flushbuf();
- int fillbuf();
-
-};
-
-class gzfilestream_common : virtual public ios {
-
- friend class gzifstream;
- friend class gzofstream;
- friend gzofstream &setcompressionlevel( gzofstream &, int );
- friend gzofstream &setcompressionstrategy( gzofstream &, int );
-
-public:
- virtual ~gzfilestream_common();
-
- void attach( int fd, int io_mode );
- void open( const char *name, int io_mode );
- void close();
-
-protected:
- gzfilestream_common();
-
-private:
- gzfilebuf *rdbuf();
-
- gzfilebuf buffer;
-
-};
-
-class gzifstream : public gzfilestream_common, public istream {
-
-public:
-
- gzifstream();
- gzifstream( const char *name, int io_mode = ios::in );
- gzifstream( int fd, int io_mode = ios::in );
-
- virtual ~gzifstream();
-
-};
-
-class gzofstream : public gzfilestream_common, public ostream {
-
-public:
-
- gzofstream();
- gzofstream( const char *name, int io_mode = ios::out );
- gzofstream( int fd, int io_mode = ios::out );
-
- virtual ~gzofstream();
-
-};
-
-template<class T> class gzomanip {
- friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &);
-public:
- gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { }
-private:
- gzofstream &(*func)(gzofstream &, T);
- T val;
-};
-
-template<class T> gzofstream &operator<<(gzofstream &s, const gzomanip<T> &m)
-{
- return (*m.func)(s, m.val);
-}
-
-inline gzofstream &setcompressionlevel( gzofstream &s, int l )
-{
- (s.rdbuf())->setcompressionlevel(l);
- return s;
-}
-
-inline gzofstream &setcompressionstrategy( gzofstream &s, int l )
-{
- (s.rdbuf())->setcompressionstrategy(l);
- return s;
-}
-
-inline gzomanip<int> setcompressionlevel(int l)
-{
- return gzomanip<int>(&setcompressionlevel,l);
-}
-
-inline gzomanip<int> setcompressionstrategy(int l)
-{
- return gzomanip<int>(&setcompressionstrategy,l);
-}
-
-#endif
+++ /dev/null
-/*
- *
- * Copyright (c) 1997
- * Christian Michelsen Research AS
- * Advanced Computing
- * Fantoftvegen 38, 5036 BERGEN, Norway
- * http://www.cmr.no
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Christian Michelsen Research AS makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- *
- */
-
-#ifndef ZSTREAM__H
-#define ZSTREAM__H
-
-/*
- * zstream.h - C++ interface to the 'zlib' general purpose compression library
- * $Id: zstream.h 1.1 1997-06-25 12:00:56+02 tyge Exp tyge $
- */
-
-#include <strstream.h>
-#include <string.h>
-#include <stdio.h>
-#include "zlib.h"
-
-#if defined(_WIN32)
-# include <fcntl.h>
-# include <io.h>
-# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-
-class zstringlen {
-public:
- zstringlen(class izstream&);
- zstringlen(class ozstream&, const char*);
- size_t value() const { return val.word; }
-private:
- struct Val { unsigned char byte; size_t word; } val;
-};
-
-// ----------------------------- izstream -----------------------------
-
-class izstream
-{
- public:
- izstream() : m_fp(0) {}
- izstream(FILE* fp) : m_fp(0) { open(fp); }
- izstream(const char* name) : m_fp(0) { open(name); }
- ~izstream() { close(); }
-
- /* Opens a gzip (.gz) file for reading.
- * open() can be used to read a file which is not in gzip format;
- * in this case read() will directly read from the file without
- * decompression. errno can be checked to distinguish two error
- * cases (if errno is zero, the zlib error is Z_MEM_ERROR).
- */
- void open(const char* name) {
- if (m_fp) close();
- m_fp = ::gzopen(name, "rb");
- }
-
- void open(FILE* fp) {
- SET_BINARY_MODE(fp);
- if (m_fp) close();
- m_fp = ::gzdopen(fileno(fp), "rb");
- }
-
- /* Flushes all pending input if necessary, closes the compressed file
- * and deallocates all the (de)compression state. The return value is
- * the zlib error number (see function error() below).
- */
- int close() {
- int r = ::gzclose(m_fp);
- m_fp = 0; return r;
- }
-
- /* Binary read the given number of bytes from the compressed file.
- */
- int read(void* buf, size_t len) {
- return ::gzread(m_fp, buf, len);
- }
-
- /* Returns the error message for the last error which occurred on the
- * given compressed file. errnum is set to zlib error number. If an
- * error occurred in the file system and not in the compression library,
- * errnum is set to Z_ERRNO and the application may consult errno
- * to get the exact error code.
- */
- const char* error(int* errnum) {
- return ::gzerror(m_fp, errnum);
- }
-
- gzFile fp() { return m_fp; }
-
- private:
- gzFile m_fp;
-};
-
-/*
- * Binary read the given (array of) object(s) from the compressed file.
- * If the input file was not in gzip format, read() copies the objects number
- * of bytes into the buffer.
- * returns the number of uncompressed bytes actually read
- * (0 for end of file, -1 for error).
- */
-template <class T, class Items>
-inline int read(izstream& zs, T* x, Items items) {
- return ::gzread(zs.fp(), x, items*sizeof(T));
-}
-
-/*
- * Binary input with the '>' operator.
- */
-template <class T>
-inline izstream& operator>(izstream& zs, T& x) {
- ::gzread(zs.fp(), &x, sizeof(T));
- return zs;
-}
-
-
-inline zstringlen::zstringlen(izstream& zs) {
- zs > val.byte;
- if (val.byte == 255) zs > val.word;
- else val.word = val.byte;
-}
-
-/*
- * Read length of string + the string with the '>' operator.
- */
-inline izstream& operator>(izstream& zs, char* x) {
- zstringlen len(zs);
- ::gzread(zs.fp(), x, len.value());
- x[len.value()] = '\0';
- return zs;
-}
-
-inline char* read_string(izstream& zs) {
- zstringlen len(zs);
- char* x = new char[len.value()+1];
- ::gzread(zs.fp(), x, len.value());
- x[len.value()] = '\0';
- return x;
-}
-
-// ----------------------------- ozstream -----------------------------
-
-class ozstream
-{
- public:
- ozstream() : m_fp(0), m_os(0) {
- }
- ozstream(FILE* fp, int level = Z_DEFAULT_COMPRESSION)
- : m_fp(0), m_os(0) {
- open(fp, level);
- }
- ozstream(const char* name, int level = Z_DEFAULT_COMPRESSION)
- : m_fp(0), m_os(0) {
- open(name, level);
- }
- ~ozstream() {
- close();
- }
-
- /* Opens a gzip (.gz) file for writing.
- * The compression level parameter should be in 0..9
- * errno can be checked to distinguish two error cases
- * (if errno is zero, the zlib error is Z_MEM_ERROR).
- */
- void open(const char* name, int level = Z_DEFAULT_COMPRESSION) {
- char mode[4] = "wb\0";
- if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
- if (m_fp) close();
- m_fp = ::gzopen(name, mode);
- }
-
- /* open from a FILE pointer.
- */
- void open(FILE* fp, int level = Z_DEFAULT_COMPRESSION) {
- SET_BINARY_MODE(fp);
- char mode[4] = "wb\0";
- if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
- if (m_fp) close();
- m_fp = ::gzdopen(fileno(fp), mode);
- }
-
- /* Flushes all pending output if necessary, closes the compressed file
- * and deallocates all the (de)compression state. The return value is
- * the zlib error number (see function error() below).
- */
- int close() {
- if (m_os) {
- ::gzwrite(m_fp, m_os->str(), m_os->pcount());
- delete[] m_os->str(); delete m_os; m_os = 0;
- }
- int r = ::gzclose(m_fp); m_fp = 0; return r;
- }
-
- /* Binary write the given number of bytes into the compressed file.
- */
- int write(const void* buf, size_t len) {
- return ::gzwrite(m_fp, (voidp) buf, len);
- }
-
- /* Flushes all pending output into the compressed file. The parameter
- * _flush is as in the deflate() function. The return value is the zlib
- * error number (see function gzerror below). flush() returns Z_OK if
- * the flush_ parameter is Z_FINISH and all output could be flushed.
- * flush() should be called only when strictly necessary because it can
- * degrade compression.
- */
- int flush(int _flush) {
- os_flush();
- return ::gzflush(m_fp, _flush);
- }
-
- /* Returns the error message for the last error which occurred on the
- * given compressed file. errnum is set to zlib error number. If an
- * error occurred in the file system and not in the compression library,
- * errnum is set to Z_ERRNO and the application may consult errno
- * to get the exact error code.
- */
- const char* error(int* errnum) {
- return ::gzerror(m_fp, errnum);
- }
-
- gzFile fp() { return m_fp; }
-
- ostream& os() {
- if (m_os == 0) m_os = new ostrstream;
- return *m_os;
- }
-
- void os_flush() {
- if (m_os && m_os->pcount()>0) {
- ostrstream* oss = new ostrstream;
- oss->fill(m_os->fill());
- oss->flags(m_os->flags());
- oss->precision(m_os->precision());
- oss->width(m_os->width());
- ::gzwrite(m_fp, m_os->str(), m_os->pcount());
- delete[] m_os->str(); delete m_os; m_os = oss;
- }
- }
-
- private:
- gzFile m_fp;
- ostrstream* m_os;
-};
-
-/*
- * Binary write the given (array of) object(s) into the compressed file.
- * returns the number of uncompressed bytes actually written
- * (0 in case of error).
- */
-template <class T, class Items>
-inline int write(ozstream& zs, const T* x, Items items) {
- return ::gzwrite(zs.fp(), (voidp) x, items*sizeof(T));
-}
-
-/*
- * Binary output with the '<' operator.
- */
-template <class T>
-inline ozstream& operator<(ozstream& zs, const T& x) {
- ::gzwrite(zs.fp(), (voidp) &x, sizeof(T));
- return zs;
-}
-
-inline zstringlen::zstringlen(ozstream& zs, const char* x) {
- val.byte = 255; val.word = ::strlen(x);
- if (val.word < 255) zs < (val.byte = val.word);
- else zs < val;
-}
-
-/*
- * Write length of string + the string with the '<' operator.
- */
-inline ozstream& operator<(ozstream& zs, const char* x) {
- zstringlen len(zs, x);
- ::gzwrite(zs.fp(), (voidp) x, len.value());
- return zs;
-}
-
-#ifdef _MSC_VER
-inline ozstream& operator<(ozstream& zs, char* const& x) {
- return zs < (const char*) x;
-}
-#endif
-
-/*
- * Ascii write with the << operator;
- */
-template <class T>
-inline ostream& operator<<(ozstream& zs, const T& x) {
- zs.os_flush();
- return zs.os() << x;
-}
-
-#endif
+++ /dev/null
-#include "zstream.h"
-#include <math.h>
-#include <stdlib.h>
-#include <iomanip.h>
-
-void main() {
- char h[256] = "Hello";
- char* g = "Goodbye";
- ozstream out("temp.gz");
- out < "This works well" < h < g;
- out.close();
-
- izstream in("temp.gz"); // read it back
- char *x = read_string(in), *y = new char[256], z[256];
- in > y > z;
- in.close();
- cout << x << endl << y << endl << z << endl;
-
- out.open("temp.gz"); // try ascii output; zcat temp.gz to see the results
- out << setw(50) << setfill('#') << setprecision(20) << x << endl << y << endl << z << endl;
- out << z << endl << y << endl << x << endl;
- out << 1.1234567890123456789 << endl;
-
- delete[] x; delete[] y;
-}
+++ /dev/null
-These classes provide a C++ stream interface to the zlib library. It allows you
-to do things like:
-
- gzofstream outf("blah.gz");
- outf << "These go into the gzip file " << 123 << endl;
-
-It does this by deriving a specialized stream buffer for gzipped files, which is
-the way Stroustrup would have done it. :->
-
-The gzifstream and gzofstream classes were originally written by Kevin Ruland
-and made available in the zlib contrib/iostream directory. The older version still
-compiles under gcc 2.xx, but not under gcc 3.xx, which sparked the development of
-this version.
-
-The new classes are as standard-compliant as possible, closely following the
-approach of the standard library's fstream classes. It compiles under gcc versions
-3.2 and 3.3, but not under gcc 2.xx. This is mainly due to changes in the standard
-library naming scheme. The new version of gzifstream/gzofstream/gzfilebuf differs
-from the previous one in the following respects:
-- added showmanyc
-- added setbuf, with support for unbuffered output via setbuf(0,0)
-- a few bug fixes of stream behavior
-- gzipped output file opened with default compression level instead of maximum level
-- setcompressionlevel()/strategy() members replaced by single setcompression()
-
-The code is provided "as is", with the permission to use, copy, modify, distribute
-and sell it for any purpose without fee.
-
-Ludwig Schwardt
-<schwardt@sun.ac.za>
-
-DSP Lab
-Electrical & Electronic Engineering Department
-University of Stellenbosch
-South Africa
+++ /dev/null
-Possible upgrades to gzfilebuf:
-
-- The ability to do putback (e.g. putbackfail)
-
-- The ability to seek (zlib supports this, but could be slow/tricky)
-
-- Simultaneous read/write access (does it make sense?)
-
-- Support for ios_base::ate open mode
-
-- Locale support?
-
-- Check public interface to see which calls give problems
- (due to dependence on library internals)
-
-- Override operator<<(ostream&, gzfilebuf*) to allow direct copying
- of stream buffer to stream ( i.e. os << is.rdbuf(); )
+++ /dev/null
-/*
- * Test program for gzifstream and gzofstream
- *
- * by Ludwig Schwardt <schwardt@sun.ac.za>
- * original version by Kevin Ruland <kevin@rodin.wustl.edu>
- */
-
-#include "zfstream.h"
-#include <iostream> // for cout
-
-int main() {
-
- gzofstream outf;
- gzifstream inf;
- char buf[80];
-
- outf.open("test1.txt.gz");
- outf << "The quick brown fox sidestepped the lazy canine\n"
- << 1.3 << "\nPlan " << 9 << std::endl;
- outf.close();
- std::cout << "Wrote the following message to 'test1.txt.gz' (check with zcat or zless):\n"
- << "The quick brown fox sidestepped the lazy canine\n"
- << 1.3 << "\nPlan " << 9 << std::endl;
-
- std::cout << "\nReading 'test1.txt.gz' (buffered) produces:\n";
- inf.open("test1.txt.gz");
- while (inf.getline(buf,80,'\n')) {
- std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";
- }
- inf.close();
-
- outf.rdbuf()->pubsetbuf(0,0);
- outf.open("test2.txt.gz");
- outf << setcompression(Z_NO_COMPRESSION)
- << "The quick brown fox sidestepped the lazy canine\n"
- << 1.3 << "\nPlan " << 9 << std::endl;
- outf.close();
- std::cout << "\nWrote the same message to 'test2.txt.gz' in uncompressed form";
-
- std::cout << "\nReading 'test2.txt.gz' (unbuffered) produces:\n";
- inf.rdbuf()->pubsetbuf(0,0);
- inf.open("test2.txt.gz");
- while (inf.getline(buf,80,'\n')) {
- std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";
- }
- inf.close();
-
- return 0;
-
-}
+++ /dev/null
-/*
- * A C++ I/O streams interface to the zlib gz* functions
- *
- * by Ludwig Schwardt <schwardt@sun.ac.za>
- * original version by Kevin Ruland <kevin@rodin.wustl.edu>
- *
- * This version is standard-compliant and compatible with gcc 3.x.
- */
-
-#include "zfstream.h"
-#include <cstring> // for strcpy, strcat, strlen (mode strings)
-#include <cstdio> // for BUFSIZ
-
-// Internal buffer sizes (default and "unbuffered" versions)
-#define BIGBUFSIZE BUFSIZ
-#define SMALLBUFSIZE 1
-
-/*****************************************************************************/
-
-// Default constructor
-gzfilebuf::gzfilebuf()
-: file(NULL), io_mode(std::ios_base::openmode(0)), own_fd(false),
- buffer(NULL), buffer_size(BIGBUFSIZE), own_buffer(true)
-{
- // No buffers to start with
- this->disable_buffer();
-}
-
-// Destructor
-gzfilebuf::~gzfilebuf()
-{
- // Sync output buffer and close only if responsible for file
- // (i.e. attached streams should be left open at this stage)
- this->sync();
- if (own_fd)
- this->close();
- // Make sure internal buffer is deallocated
- this->disable_buffer();
-}
-
-// Set compression level and strategy
-int
-gzfilebuf::setcompression(int comp_level,
- int comp_strategy)
-{
- return gzsetparams(file, comp_level, comp_strategy);
-}
-
-// Open gzipped file
-gzfilebuf*
-gzfilebuf::open(const char *name,
- std::ios_base::openmode mode)
-{
- // Fail if file already open
- if (this->is_open())
- return NULL;
- // Don't support simultaneous read/write access (yet)
- if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
- return NULL;
-
- // Build mode string for gzopen and check it [27.8.1.3.2]
- char char_mode[6] = "\0\0\0\0\0";
- if (!this->open_mode(mode, char_mode))
- return NULL;
-
- // Attempt to open file
- if ((file = gzopen(name, char_mode)) == NULL)
- return NULL;
-
- // On success, allocate internal buffer and set flags
- this->enable_buffer();
- io_mode = mode;
- own_fd = true;
- return this;
-}
-
-// Attach to gzipped file
-gzfilebuf*
-gzfilebuf::attach(int fd,
- std::ios_base::openmode mode)
-{
- // Fail if file already open
- if (this->is_open())
- return NULL;
- // Don't support simultaneous read/write access (yet)
- if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
- return NULL;
-
- // Build mode string for gzdopen and check it [27.8.1.3.2]
- char char_mode[6] = "\0\0\0\0\0";
- if (!this->open_mode(mode, char_mode))
- return NULL;
-
- // Attempt to attach to file
- if ((file = gzdopen(fd, char_mode)) == NULL)
- return NULL;
-
- // On success, allocate internal buffer and set flags
- this->enable_buffer();
- io_mode = mode;
- own_fd = false;
- return this;
-}
-
-// Close gzipped file
-gzfilebuf*
-gzfilebuf::close()
-{
- // Fail immediately if no file is open
- if (!this->is_open())
- return NULL;
- // Assume success
- gzfilebuf* retval = this;
- // Attempt to sync and close gzipped file
- if (this->sync() == -1)
- retval = NULL;
- if (gzclose(file) < 0)
- retval = NULL;
- // File is now gone anyway (postcondition [27.8.1.3.8])
- file = NULL;
- own_fd = false;
- // Destroy internal buffer if it exists
- this->disable_buffer();
- return retval;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-// Convert int open mode to mode string
-bool
-gzfilebuf::open_mode(std::ios_base::openmode mode,
- char* c_mode) const
-{
- bool testb = mode & std::ios_base::binary;
- bool testi = mode & std::ios_base::in;
- bool testo = mode & std::ios_base::out;
- bool testt = mode & std::ios_base::trunc;
- bool testa = mode & std::ios_base::app;
-
- // Check for valid flag combinations - see [27.8.1.3.2] (Table 92)
- // Original zfstream hardcoded the compression level to maximum here...
- // Double the time for less than 1% size improvement seems
- // excessive though - keeping it at the default level
- // To change back, just append "9" to the next three mode strings
- if (!testi && testo && !testt && !testa)
- strcpy(c_mode, "w");
- if (!testi && testo && !testt && testa)
- strcpy(c_mode, "a");
- if (!testi && testo && testt && !testa)
- strcpy(c_mode, "w");
- if (testi && !testo && !testt && !testa)
- strcpy(c_mode, "r");
- // No read/write mode yet
-// if (testi && testo && !testt && !testa)
-// strcpy(c_mode, "r+");
-// if (testi && testo && testt && !testa)
-// strcpy(c_mode, "w+");
-
- // Mode string should be empty for invalid combination of flags
- if (strlen(c_mode) == 0)
- return false;
- if (testb)
- strcat(c_mode, "b");
- return true;
-}
-
-// Determine number of characters in internal get buffer
-std::streamsize
-gzfilebuf::showmanyc()
-{
- // Calls to underflow will fail if file not opened for reading
- if (!this->is_open() || !(io_mode & std::ios_base::in))
- return -1;
- // Make sure get area is in use
- if (this->gptr() && (this->gptr() < this->egptr()))
- return std::streamsize(this->egptr() - this->gptr());
- else
- return 0;
-}
-
-// Fill get area from gzipped file
-gzfilebuf::int_type
-gzfilebuf::underflow()
-{
- // If something is left in the get area by chance, return it
- // (this shouldn't normally happen, as underflow is only supposed
- // to be called when gptr >= egptr, but it serves as error check)
- if (this->gptr() && (this->gptr() < this->egptr()))
- return traits_type::to_int_type(*(this->gptr()));
-
- // If the file hasn't been opened for reading, produce error
- if (!this->is_open() || !(io_mode & std::ios_base::in))
- return traits_type::eof();
-
- // Attempt to fill internal buffer from gzipped file
- // (buffer must be guaranteed to exist...)
- int bytes_read = gzread(file, buffer, buffer_size);
- // Indicates error or EOF
- if (bytes_read <= 0)
- {
- // Reset get area
- this->setg(buffer, buffer, buffer);
- return traits_type::eof();
- }
- // Make all bytes read from file available as get area
- this->setg(buffer, buffer, buffer + bytes_read);
-
- // Return next character in get area
- return traits_type::to_int_type(*(this->gptr()));
-}
-
-// Write put area to gzipped file
-gzfilebuf::int_type
-gzfilebuf::overflow(int_type c)
-{
- // Determine whether put area is in use
- if (this->pbase())
- {
- // Double-check pointer range
- if (this->pptr() > this->epptr() || this->pptr() < this->pbase())
- return traits_type::eof();
- // Add extra character to buffer if not EOF
- if (!traits_type::eq_int_type(c, traits_type::eof()))
- {
- *(this->pptr()) = traits_type::to_char_type(c);
- this->pbump(1);
- }
- // Number of characters to write to file
- int bytes_to_write = this->pptr() - this->pbase();
- // Overflow doesn't fail if nothing is to be written
- if (bytes_to_write > 0)
- {
- // If the file hasn't been opened for writing, produce error
- if (!this->is_open() || !(io_mode & std::ios_base::out))
- return traits_type::eof();
- // If gzipped file won't accept all bytes written to it, fail
- if (gzwrite(file, this->pbase(), bytes_to_write) != bytes_to_write)
- return traits_type::eof();
- // Reset next pointer to point to pbase on success
- this->pbump(-bytes_to_write);
- }
- }
- // Write extra character to file if not EOF
- else if (!traits_type::eq_int_type(c, traits_type::eof()))
- {
- // If the file hasn't been opened for writing, produce error
- if (!this->is_open() || !(io_mode & std::ios_base::out))
- return traits_type::eof();
- // Impromptu char buffer (allows "unbuffered" output)
- char_type last_char = traits_type::to_char_type(c);
- // If gzipped file won't accept this character, fail
- if (gzwrite(file, &last_char, 1) != 1)
- return traits_type::eof();
- }
-
- // If you got here, you have succeeded (even if c was EOF)
- // The return value should therefore be non-EOF
- if (traits_type::eq_int_type(c, traits_type::eof()))
- return traits_type::not_eof(c);
- else
- return c;
-}
-
-// Assign new buffer
-std::streambuf*
-gzfilebuf::setbuf(char_type* p,
- std::streamsize n)
-{
- // First make sure stuff is sync'ed, for safety
- if (this->sync() == -1)
- return NULL;
- // If buffering is turned off on purpose via setbuf(0,0), still allocate one...
- // "Unbuffered" only really refers to put [27.8.1.4.10], while get needs at
- // least a buffer of size 1 (very inefficient though, therefore make it bigger?)
- // This follows from [27.5.2.4.3]/12 (gptr needs to point at something, it seems)
- if (!p || !n)
- {
- // Replace existing buffer (if any) with small internal buffer
- this->disable_buffer();
- buffer = NULL;
- buffer_size = 0;
- own_buffer = true;
- this->enable_buffer();
- }
- else
- {
- // Replace existing buffer (if any) with external buffer
- this->disable_buffer();
- buffer = p;
- buffer_size = n;
- own_buffer = false;
- this->enable_buffer();
- }
- return this;
-}
-
-// Write put area to gzipped file (i.e. ensures that put area is empty)
-int
-gzfilebuf::sync()
-{
- return traits_type::eq_int_type(this->overflow(), traits_type::eof()) ? -1 : 0;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-// Allocate internal buffer
-void
-gzfilebuf::enable_buffer()
-{
- // If internal buffer required, allocate one
- if (own_buffer && !buffer)
- {
- // Check for buffered vs. "unbuffered"
- if (buffer_size > 0)
- {
- // Allocate internal buffer
- buffer = new char_type[buffer_size];
- // Get area starts empty and will be expanded by underflow as need arises
- this->setg(buffer, buffer, buffer);
- // Setup entire internal buffer as put area.
- // The one-past-end pointer actually points to the last element of the buffer,
- // so that overflow(c) can safely add the extra character c to the sequence.
- // These pointers remain in place for the duration of the buffer
- this->setp(buffer, buffer + buffer_size - 1);
- }
- else
- {
- // Even in "unbuffered" case, (small?) get buffer is still required
- buffer_size = SMALLBUFSIZE;
- buffer = new char_type[buffer_size];
- this->setg(buffer, buffer, buffer);
- // "Unbuffered" means no put buffer
- this->setp(0, 0);
- }
- }
- else
- {
- // If buffer already allocated, reset buffer pointers just to make sure no
- // stale chars are lying around
- this->setg(buffer, buffer, buffer);
- this->setp(buffer, buffer + buffer_size - 1);
- }
-}
-
-// Destroy internal buffer
-void
-gzfilebuf::disable_buffer()
-{
- // If internal buffer exists, deallocate it
- if (own_buffer && buffer)
- {
- // Preserve unbuffered status by zeroing size
- if (!this->pbase())
- buffer_size = 0;
- delete[] buffer;
- buffer = NULL;
- this->setg(0, 0, 0);
- this->setp(0, 0);
- }
- else
- {
- // Reset buffer pointers to initial state if external buffer exists
- this->setg(buffer, buffer, buffer);
- if (buffer)
- this->setp(buffer, buffer + buffer_size - 1);
- else
- this->setp(0, 0);
- }
-}
-
-/*****************************************************************************/
-
-// Default constructor initializes stream buffer
-gzifstream::gzifstream()
-: std::istream(NULL), sb()
-{ this->init(&sb); }
-
-// Initialize stream buffer and open file
-gzifstream::gzifstream(const char* name,
- std::ios_base::openmode mode)
-: std::istream(NULL), sb()
-{
- this->init(&sb);
- this->open(name, mode);
-}
-
-// Initialize stream buffer and attach to file
-gzifstream::gzifstream(int fd,
- std::ios_base::openmode mode)
-: std::istream(NULL), sb()
-{
- this->init(&sb);
- this->attach(fd, mode);
-}
-
-// Open file and go into fail() state if unsuccessful
-void
-gzifstream::open(const char* name,
- std::ios_base::openmode mode)
-{
- if (!sb.open(name, mode | std::ios_base::in))
- this->setstate(std::ios_base::failbit);
- else
- this->clear();
-}
-
-// Attach to file and go into fail() state if unsuccessful
-void
-gzifstream::attach(int fd,
- std::ios_base::openmode mode)
-{
- if (!sb.attach(fd, mode | std::ios_base::in))
- this->setstate(std::ios_base::failbit);
- else
- this->clear();
-}
-
-// Close file
-void
-gzifstream::close()
-{
- if (!sb.close())
- this->setstate(std::ios_base::failbit);
-}
-
-/*****************************************************************************/
-
-// Default constructor initializes stream buffer
-gzofstream::gzofstream()
-: std::ostream(NULL), sb()
-{ this->init(&sb); }
-
-// Initialize stream buffer and open file
-gzofstream::gzofstream(const char* name,
- std::ios_base::openmode mode)
-: std::ostream(NULL), sb()
-{
- this->init(&sb);
- this->open(name, mode);
-}
-
-// Initialize stream buffer and attach to file
-gzofstream::gzofstream(int fd,
- std::ios_base::openmode mode)
-: std::ostream(NULL), sb()
-{
- this->init(&sb);
- this->attach(fd, mode);
-}
-
-// Open file and go into fail() state if unsuccessful
-void
-gzofstream::open(const char* name,
- std::ios_base::openmode mode)
-{
- if (!sb.open(name, mode | std::ios_base::out))
- this->setstate(std::ios_base::failbit);
- else
- this->clear();
-}
-
-// Attach to file and go into fail() state if unsuccessful
-void
-gzofstream::attach(int fd,
- std::ios_base::openmode mode)
-{
- if (!sb.attach(fd, mode | std::ios_base::out))
- this->setstate(std::ios_base::failbit);
- else
- this->clear();
-}
-
-// Close file
-void
-gzofstream::close()
-{
- if (!sb.close())
- this->setstate(std::ios_base::failbit);
-}
+++ /dev/null
-/*
- * A C++ I/O streams interface to the zlib gz* functions
- *
- * by Ludwig Schwardt <schwardt@sun.ac.za>
- * original version by Kevin Ruland <kevin@rodin.wustl.edu>
- *
- * This version is standard-compliant and compatible with gcc 3.x.
- */
-
-#ifndef ZFSTREAM_H
-#define ZFSTREAM_H
-
-#include <istream> // not iostream, since we don't need cin/cout
-#include <ostream>
-#include "zlib.h"
-
-/*****************************************************************************/
-
-/**
- * @brief Gzipped file stream buffer class.
- *
- * This class implements basic_filebuf for gzipped files. It doesn't yet support
- * seeking (allowed by zlib but slow/limited), putback and read/write access
- * (tricky). Otherwise, it attempts to be a drop-in replacement for the standard
- * file streambuf.
-*/
-class gzfilebuf : public std::streambuf
-{
-public:
- // Default constructor.
- gzfilebuf();
-
- // Destructor.
- virtual
- ~gzfilebuf();
-
- /**
- * @brief Set compression level and strategy on the fly.
- * @param comp_level Compression level (see zlib.h for allowed values)
- * @param comp_strategy Compression strategy (see zlib.h for allowed values)
- * @return Z_OK on success, Z_STREAM_ERROR otherwise.
- *
- * Unfortunately, these parameters cannot be modified separately, as the
- * previous zfstream version assumed. Since the strategy is seldom changed,
- * it can default and setcompression(level) then becomes like the old
- * setcompressionlevel(level).
- */
- int
- setcompression(int comp_level,
- int comp_strategy = Z_DEFAULT_STRATEGY);
-
- /**
- * @brief Check if file is open.
- * @return True if file is open.
- */
- bool
- is_open() const { return (file != NULL); }
-
- /**
- * @brief Open gzipped file.
- * @param name File name.
- * @param mode Open mode flags.
- * @return @c this on success, NULL on failure.
- */
- gzfilebuf*
- open(const char* name,
- std::ios_base::openmode mode);
-
- /**
- * @brief Attach to already open gzipped file.
- * @param fd File descriptor.
- * @param mode Open mode flags.
- * @return @c this on success, NULL on failure.
- */
- gzfilebuf*
- attach(int fd,
- std::ios_base::openmode mode);
-
- /**
- * @brief Close gzipped file.
- * @return @c this on success, NULL on failure.
- */
- gzfilebuf*
- close();
-
-protected:
- /**
- * @brief Convert ios open mode int to mode string used by zlib.
- * @return True if valid mode flag combination.
- */
- bool
- open_mode(std::ios_base::openmode mode,
- char* c_mode) const;
-
- /**
- * @brief Number of characters available in stream buffer.
- * @return Number of characters.
- *
- * This indicates number of characters in get area of stream buffer.
- * These characters can be read without accessing the gzipped file.
- */
- virtual std::streamsize
- showmanyc();
-
- /**
- * @brief Fill get area from gzipped file.
- * @return First character in get area on success, EOF on error.
- *
- * This actually reads characters from gzipped file to stream
- * buffer. Always buffered.
- */
- virtual int_type
- underflow();
-
- /**
- * @brief Write put area to gzipped file.
- * @param c Extra character to add to buffer contents.
- * @return Non-EOF on success, EOF on error.
- *
- * This actually writes characters in stream buffer to
- * gzipped file. With unbuffered output this is done one
- * character at a time.
- */
- virtual int_type
- overflow(int_type c = traits_type::eof());
-
- /**
- * @brief Installs external stream buffer.
- * @param p Pointer to char buffer.
- * @param n Size of external buffer.
- * @return @c this on success, NULL on failure.
- *
- * Call setbuf(0,0) to enable unbuffered output.
- */
- virtual std::streambuf*
- setbuf(char_type* p,
- std::streamsize n);
-
- /**
- * @brief Flush stream buffer to file.
- * @return 0 on success, -1 on error.
- *
- * This calls underflow(EOF) to do the job.
- */
- virtual int
- sync();
-
-//
-// Some future enhancements
-//
-// virtual int_type uflow();
-// virtual int_type pbackfail(int_type c = traits_type::eof());
-// virtual pos_type
-// seekoff(off_type off,
-// std::ios_base::seekdir way,
-// std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);
-// virtual pos_type
-// seekpos(pos_type sp,
-// std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);
-
-private:
- /**
- * @brief Allocate internal buffer.
- *
- * This function is safe to call multiple times. It will ensure
- * that a proper internal buffer exists if it is required. If the
- * buffer already exists or is external, the buffer pointers will be
- * reset to their original state.
- */
- void
- enable_buffer();
-
- /**
- * @brief Destroy internal buffer.
- *
- * This function is safe to call multiple times. It will ensure
- * that the internal buffer is deallocated if it exists. In any
- * case, it will also reset the buffer pointers.
- */
- void
- disable_buffer();
-
- /**
- * Underlying file pointer.
- */
- gzFile file;
-
- /**
- * Mode in which file was opened.
- */
- std::ios_base::openmode io_mode;
-
- /**
- * @brief True if this object owns file descriptor.
- *
- * This makes the class responsible for closing the file
- * upon destruction.
- */
- bool own_fd;
-
- /**
- * @brief Stream buffer.
- *
- * For simplicity this remains allocated on the free store for the
- * entire life span of the gzfilebuf object, unless replaced by setbuf.
- */
- char_type* buffer;
-
- /**
- * @brief Stream buffer size.
- *
- * Defaults to system default buffer size (typically 8192 bytes).
- * Modified by setbuf.
- */
- std::streamsize buffer_size;
-
- /**
- * @brief True if this object owns stream buffer.
- *
- * This makes the class responsible for deleting the buffer
- * upon destruction.
- */
- bool own_buffer;
-};
-
-/*****************************************************************************/
-
-/**
- * @brief Gzipped file input stream class.
- *
- * This class implements ifstream for gzipped files. Seeking and putback
- * is not supported yet.
-*/
-class gzifstream : public std::istream
-{
-public:
- // Default constructor
- gzifstream();
-
- /**
- * @brief Construct stream on gzipped file to be opened.
- * @param name File name.
- * @param mode Open mode flags (forced to contain ios::in).
- */
- explicit
- gzifstream(const char* name,
- std::ios_base::openmode mode = std::ios_base::in);
-
- /**
- * @brief Construct stream on already open gzipped file.
- * @param fd File descriptor.
- * @param mode Open mode flags (forced to contain ios::in).
- */
- explicit
- gzifstream(int fd,
- std::ios_base::openmode mode = std::ios_base::in);
-
- /**
- * Obtain underlying stream buffer.
- */
- gzfilebuf*
- rdbuf() const
- { return const_cast<gzfilebuf*>(&sb); }
-
- /**
- * @brief Check if file is open.
- * @return True if file is open.
- */
- bool
- is_open() { return sb.is_open(); }
-
- /**
- * @brief Open gzipped file.
- * @param name File name.
- * @param mode Open mode flags (forced to contain ios::in).
- *
- * Stream will be in state good() if file opens successfully;
- * otherwise in state fail(). This differs from the behavior of
- * ifstream, which never sets the state to good() and therefore
- * won't allow you to reuse the stream for a second file unless
- * you manually clear() the state. The choice is a matter of
- * convenience.
- */
- void
- open(const char* name,
- std::ios_base::openmode mode = std::ios_base::in);
-
- /**
- * @brief Attach to already open gzipped file.
- * @param fd File descriptor.
- * @param mode Open mode flags (forced to contain ios::in).
- *
- * Stream will be in state good() if attach succeeded; otherwise
- * in state fail().
- */
- void
- attach(int fd,
- std::ios_base::openmode mode = std::ios_base::in);
-
- /**
- * @brief Close gzipped file.
- *
- * Stream will be in state fail() if close failed.
- */
- void
- close();
-
-private:
- /**
- * Underlying stream buffer.
- */
- gzfilebuf sb;
-};
-
-/*****************************************************************************/
-
-/**
- * @brief Gzipped file output stream class.
- *
- * This class implements ofstream for gzipped files. Seeking and putback
- * is not supported yet.
-*/
-class gzofstream : public std::ostream
-{
-public:
- // Default constructor
- gzofstream();
-
- /**
- * @brief Construct stream on gzipped file to be opened.
- * @param name File name.
- * @param mode Open mode flags (forced to contain ios::out).
- */
- explicit
- gzofstream(const char* name,
- std::ios_base::openmode mode = std::ios_base::out);
-
- /**
- * @brief Construct stream on already open gzipped file.
- * @param fd File descriptor.
- * @param mode Open mode flags (forced to contain ios::out).
- */
- explicit
- gzofstream(int fd,
- std::ios_base::openmode mode = std::ios_base::out);
-
- /**
- * Obtain underlying stream buffer.
- */
- gzfilebuf*
- rdbuf() const
- { return const_cast<gzfilebuf*>(&sb); }
-
- /**
- * @brief Check if file is open.
- * @return True if file is open.
- */
- bool
- is_open() { return sb.is_open(); }
-
- /**
- * @brief Open gzipped file.
- * @param name File name.
- * @param mode Open mode flags (forced to contain ios::out).
- *
- * Stream will be in state good() if file opens successfully;
- * otherwise in state fail(). This differs from the behavior of
- * ofstream, which never sets the state to good() and therefore
- * won't allow you to reuse the stream for a second file unless
- * you manually clear() the state. The choice is a matter of
- * convenience.
- */
- void
- open(const char* name,
- std::ios_base::openmode mode = std::ios_base::out);
-
- /**
- * @brief Attach to already open gzipped file.
- * @param fd File descriptor.
- * @param mode Open mode flags (forced to contain ios::out).
- *
- * Stream will be in state good() if attach succeeded; otherwise
- * in state fail().
- */
- void
- attach(int fd,
- std::ios_base::openmode mode = std::ios_base::out);
-
- /**
- * @brief Close gzipped file.
- *
- * Stream will be in state fail() if close failed.
- */
- void
- close();
-
-private:
- /**
- * Underlying stream buffer.
- */
- gzfilebuf sb;
-};
-
-/*****************************************************************************/
-
-/**
- * @brief Gzipped file output stream manipulator class.
- *
- * This class defines a two-argument manipulator for gzofstream. It is used
- * as base for the setcompression(int,int) manipulator.
-*/
-template<typename T1, typename T2>
- class gzomanip2
- {
- public:
- // Allows insertor to peek at internals
- template <typename Ta, typename Tb>
- friend gzofstream&
- operator<<(gzofstream&,
- const gzomanip2<Ta,Tb>&);
-
- // Constructor
- gzomanip2(gzofstream& (*f)(gzofstream&, T1, T2),
- T1 v1,
- T2 v2);
- private:
- // Underlying manipulator function
- gzofstream&
- (*func)(gzofstream&, T1, T2);
-
- // Arguments for manipulator function
- T1 val1;
- T2 val2;
- };
-
-/*****************************************************************************/
-
-// Manipulator function thunks through to stream buffer
-inline gzofstream&
-setcompression(gzofstream &gzs, int l, int s = Z_DEFAULT_STRATEGY)
-{
- (gzs.rdbuf())->setcompression(l, s);
- return gzs;
-}
-
-// Manipulator constructor stores arguments
-template<typename T1, typename T2>
- inline
- gzomanip2<T1,T2>::gzomanip2(gzofstream &(*f)(gzofstream &, T1, T2),
- T1 v1,
- T2 v2)
- : func(f), val1(v1), val2(v2)
- { }
-
-// Insertor applies underlying manipulator function to stream
-template<typename T1, typename T2>
- inline gzofstream&
- operator<<(gzofstream& s, const gzomanip2<T1,T2>& m)
- { return (*m.func)(s, m.val1, m.val2); }
-
-// Insert this onto stream to simplify setting of compression level
-inline gzomanip2<int,int>
-setcompression(int l, int s = Z_DEFAULT_STRATEGY)
-{ return gzomanip2<int,int>(&setcompression, l, s); }
-
-#endif // ZFSTREAM_H
+++ /dev/null
-ml64.exe /Flinffasx64 /c /Zi inffasx64.asm\r
-ml64.exe /Flgvmat64 /c /Zi gvmat64.asm\r
+++ /dev/null
-;uInt longest_match_x64(\r
-; deflate_state *s,\r
-; IPos cur_match); /* current match */\r
-\r
-; gvmat64.asm -- Asm portion of the optimized longest_match for 32 bits x86_64\r
-; (AMD64 on Athlon 64, Opteron, Phenom\r
-; and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)\r
-; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.\r
-;\r
-; File written by Gilles Vollant, by converting to assembly the longest_match\r
-; from Jean-loup Gailly in deflate.c of zLib and infoZip zip.\r
-;\r
-; and by taking inspiration on asm686 with masm, optimised assembly code\r
-; from Brian Raiter, written 1998\r
-;\r
-; This software is provided 'as-is', without any express or implied\r
-; warranty. In no event will the authors be held liable for any damages\r
-; arising from the use of this software.\r
-;\r
-; Permission is granted to anyone to use this software for any purpose,\r
-; including commercial applications, and to alter it and redistribute it\r
-; freely, subject to the following restrictions:\r
-;\r
-; 1. The origin of this software must not be misrepresented; you must not\r
-; claim that you wrote the original software. If you use this software\r
-; in a product, an acknowledgment in the product documentation would be\r
-; appreciated but is not required.\r
-; 2. Altered source versions must be plainly marked as such, and must not be\r
-; misrepresented as being the original software\r
-; 3. This notice may not be removed or altered from any source distribution.\r
-;\r
-;\r
-;\r
-; http://www.zlib.net\r
-; http://www.winimage.com/zLibDll\r
-; http://www.muppetlabs.com/~breadbox/software/assembly.html\r
-;\r
-; to compile this file for infozip Zip, I use option:\r
-; ml64.exe /Flgvmat64 /c /Zi /DINFOZIP gvmat64.asm\r
-;\r
-; to compile this file for zLib, I use option:\r
-; ml64.exe /Flgvmat64 /c /Zi gvmat64.asm\r
-; Be carrefull to adapt zlib1222add below to your version of zLib\r
-; (if you use a version of zLib before 1.0.4 or after 1.2.2.2, change\r
-; value of zlib1222add later)\r
-;\r
-; This file compile with Microsoft Macro Assembler (x64) for AMD64\r
-;\r
-; ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK\r
-;\r
-; (you can get Windows WDK with ml64 for AMD64 from\r
-; http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)\r
-;\r
-\r
-\r
-;uInt longest_match(s, cur_match)\r
-; deflate_state *s;\r
-; IPos cur_match; /* current match */\r
-.code\r
-longest_match PROC\r
-\r
-\r
-;LocalVarsSize equ 88\r
- LocalVarsSize equ 72\r
-\r
-; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12\r
-; free register : r14,r15\r
-; register can be saved : rsp\r
-\r
- chainlenwmask equ rsp + 8 - LocalVarsSize ; high word: current chain len\r
- ; low word: s->wmask\r
-;window equ rsp + xx - LocalVarsSize ; local copy of s->window ; stored in r10\r
-;windowbestlen equ rsp + xx - LocalVarsSize ; s->window + bestlen , use r10+r11\r
-;scanstart equ rsp + xx - LocalVarsSize ; first two bytes of string ; stored in r12w\r
-;scanend equ rsp + xx - LocalVarsSize ; last two bytes of string use ebx\r
-;scanalign equ rsp + xx - LocalVarsSize ; dword-misalignment of string r13\r
-;bestlen equ rsp + xx - LocalVarsSize ; size of best match so far -> r11d\r
-;scan equ rsp + xx - LocalVarsSize ; ptr to string wanting match -> r9\r
-IFDEF INFOZIP\r
-ELSE\r
- nicematch equ (rsp + 16 - LocalVarsSize) ; a good enough match size\r
-ENDIF\r
-\r
-save_rdi equ rsp + 24 - LocalVarsSize\r
-save_rsi equ rsp + 32 - LocalVarsSize\r
-save_rbx equ rsp + 40 - LocalVarsSize\r
-save_rbp equ rsp + 48 - LocalVarsSize\r
-save_r12 equ rsp + 56 - LocalVarsSize\r
-save_r13 equ rsp + 64 - LocalVarsSize\r
-;save_r14 equ rsp + 72 - LocalVarsSize\r
-;save_r15 equ rsp + 80 - LocalVarsSize\r
-\r
-\r
-; summary of register usage\r
-; scanend ebx\r
-; scanendw bx\r
-; chainlenwmask edx\r
-; curmatch rsi\r
-; curmatchd esi\r
-; windowbestlen r8\r
-; scanalign r9\r
-; scanalignd r9d\r
-; window r10\r
-; bestlen r11\r
-; bestlend r11d\r
-; scanstart r12d\r
-; scanstartw r12w\r
-; scan r13\r
-; nicematch r14d\r
-; limit r15\r
-; limitd r15d\r
-; prev rcx\r
-\r
-; all the +4 offsets are due to the addition of pending_buf_size (in zlib\r
-; in the deflate_state structure since the asm code was first written\r
-; (if you compile with zlib 1.0.4 or older, remove the +4).\r
-; Note : these value are good with a 8 bytes boundary pack structure\r
-\r
-\r
- MAX_MATCH equ 258\r
- MIN_MATCH equ 3\r
- MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)\r
-\r
-\r
-;;; Offsets for fields in the deflate_state structure. These numbers\r
-;;; are calculated from the definition of deflate_state, with the\r
-;;; assumption that the compiler will dword-align the fields. (Thus,\r
-;;; changing the definition of deflate_state could easily cause this\r
-;;; program to crash horribly, without so much as a warning at\r
-;;; compile time. Sigh.)\r
-\r
-; all the +zlib1222add offsets are due to the addition of fields\r
-; in zlib in the deflate_state structure since the asm code was first written\r
-; (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").\r
-; (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").\r
-; if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").\r
-\r
-\r
-IFDEF INFOZIP\r
-\r
-_DATA SEGMENT\r
-COMM window_size:DWORD\r
-; WMask ; 7fff\r
-COMM window:BYTE:010040H\r
-COMM prev:WORD:08000H\r
-; MatchLen : unused\r
-; PrevMatch : unused\r
-COMM strstart:DWORD\r
-COMM match_start:DWORD\r
-; Lookahead : ignore\r
-COMM prev_length:DWORD ; PrevLen\r
-COMM max_chain_length:DWORD\r
-COMM good_match:DWORD\r
-COMM nice_match:DWORD\r
-prev_ad equ OFFSET prev\r
-window_ad equ OFFSET window\r
-nicematch equ nice_match\r
-_DATA ENDS\r
-WMask equ 07fffh\r
-\r
-ELSE\r
-\r
- IFNDEF zlib1222add\r
- zlib1222add equ 8\r
- ENDIF\r
-dsWSize equ 56+zlib1222add+(zlib1222add/2)\r
-dsWMask equ 64+zlib1222add+(zlib1222add/2)\r
-dsWindow equ 72+zlib1222add\r
-dsPrev equ 88+zlib1222add\r
-dsMatchLen equ 128+zlib1222add\r
-dsPrevMatch equ 132+zlib1222add\r
-dsStrStart equ 140+zlib1222add\r
-dsMatchStart equ 144+zlib1222add\r
-dsLookahead equ 148+zlib1222add\r
-dsPrevLen equ 152+zlib1222add\r
-dsMaxChainLen equ 156+zlib1222add\r
-dsGoodMatch equ 172+zlib1222add\r
-dsNiceMatch equ 176+zlib1222add\r
-\r
-window_size equ [ rcx + dsWSize]\r
-WMask equ [ rcx + dsWMask]\r
-window_ad equ [ rcx + dsWindow]\r
-prev_ad equ [ rcx + dsPrev]\r
-strstart equ [ rcx + dsStrStart]\r
-match_start equ [ rcx + dsMatchStart]\r
-Lookahead equ [ rcx + dsLookahead] ; 0ffffffffh on infozip\r
-prev_length equ [ rcx + dsPrevLen]\r
-max_chain_length equ [ rcx + dsMaxChainLen]\r
-good_match equ [ rcx + dsGoodMatch]\r
-nice_match equ [ rcx + dsNiceMatch]\r
-ENDIF\r
-\r
-; parameter 1 in r8(deflate state s), param 2 in rdx (cur match)\r
-\r
-; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and\r
-; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp\r
-;\r
-; All registers must be preserved across the call, except for\r
-; rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.\r
-\r
-\r
-\r
-;;; Save registers that the compiler may be using, and adjust esp to\r
-;;; make room for our stack frame.\r
-\r
-\r
-;;; Retrieve the function arguments. r8d will hold cur_match\r
-;;; throughout the entire function. edx will hold the pointer to the\r
-;;; deflate_state structure during the function's setup (before\r
-;;; entering the main loop.\r
-\r
-; parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)\r
-\r
-; this clear high 32 bits of r8, which can be garbage in both r8 and rdx\r
-\r
- mov [save_rdi],rdi\r
- mov [save_rsi],rsi\r
- mov [save_rbx],rbx\r
- mov [save_rbp],rbp\r
-IFDEF INFOZIP\r
- mov r8d,ecx\r
-ELSE\r
- mov r8d,edx\r
-ENDIF\r
- mov [save_r12],r12\r
- mov [save_r13],r13\r
-; mov [save_r14],r14\r
-; mov [save_r15],r15\r
-\r
-\r
-;;; uInt wmask = s->w_mask;\r
-;;; unsigned chain_length = s->max_chain_length;\r
-;;; if (s->prev_length >= s->good_match) {\r
-;;; chain_length >>= 2;\r
-;;; }\r
-\r
- mov edi, prev_length\r
- mov esi, good_match\r
- mov eax, WMask\r
- mov ebx, max_chain_length\r
- cmp edi, esi\r
- jl LastMatchGood\r
- shr ebx, 2\r
-LastMatchGood:\r
-\r
-;;; chainlen is decremented once beforehand so that the function can\r
-;;; use the sign flag instead of the zero flag for the exit test.\r
-;;; It is then shifted into the high word, to make room for the wmask\r
-;;; value, which it will always accompany.\r
-\r
- dec ebx\r
- shl ebx, 16\r
- or ebx, eax\r
-\r
-;;; on zlib only\r
-;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;\r
-\r
-IFDEF INFOZIP\r
- mov [chainlenwmask], ebx\r
-; on infozip nice_match = [nice_match]\r
-ELSE\r
- mov eax, nice_match\r
- mov [chainlenwmask], ebx\r
- mov r10d, Lookahead\r
- cmp r10d, eax\r
- cmovnl r10d, eax\r
- mov [nicematch],r10d\r
-ENDIF\r
-\r
-;;; register Bytef *scan = s->window + s->strstart;\r
- mov r10, window_ad\r
- mov ebp, strstart\r
- lea r13, [r10 + rbp]\r
-\r
-;;; Determine how many bytes the scan ptr is off from being\r
-;;; dword-aligned.\r
-\r
- mov r9,r13\r
- neg r13\r
- and r13,3\r
-\r
-;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?\r
-;;; s->strstart - (IPos)MAX_DIST(s) : NIL;\r
-IFDEF INFOZIP\r
- mov eax,07efah ; MAX_DIST = (WSIZE-MIN_LOOKAHEAD) (0x8000-(3+8+1))\r
-ELSE\r
- mov eax, window_size\r
- sub eax, MIN_LOOKAHEAD\r
-ENDIF\r
- xor edi,edi\r
- sub ebp, eax\r
-\r
- mov r11d, prev_length\r
-\r
- cmovng ebp,edi\r
-\r
-;;; int best_len = s->prev_length;\r
-\r
-\r
-;;; Store the sum of s->window + best_len in esi locally, and in esi.\r
-\r
- lea rsi,[r10+r11]\r
-\r
-;;; register ush scan_start = *(ushf*)scan;\r
-;;; register ush scan_end = *(ushf*)(scan+best_len-1);\r
-;;; Posf *prev = s->prev;\r
-\r
- movzx r12d,word ptr [r9]\r
- movzx ebx, word ptr [r9 + r11 - 1]\r
-\r
- mov rdi, prev_ad\r
-\r
-;;; Jump into the main loop.\r
-\r
- mov edx, [chainlenwmask]\r
-\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- jz LookupLoopIsZero\r
-\r
-LookupLoop1:\r
- and r8d, edx\r
-\r
- movzx r8d, word ptr [rdi + r8*2]\r
- cmp r8d, ebp\r
- jbe LeaveNow\r
- sub edx, 00010000h\r
- js LeaveNow\r
-\r
-LoopEntry1:\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- jz LookupLoopIsZero\r
-\r
-LookupLoop2:\r
- and r8d, edx\r
-\r
- movzx r8d, word ptr [rdi + r8*2]\r
- cmp r8d, ebp\r
- jbe LeaveNow\r
- sub edx, 00010000h\r
- js LeaveNow\r
-\r
-LoopEntry2:\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- jz LookupLoopIsZero\r
-\r
-LookupLoop4:\r
- and r8d, edx\r
-\r
- movzx r8d, word ptr [rdi + r8*2]\r
- cmp r8d, ebp\r
- jbe LeaveNow\r
- sub edx, 00010000h\r
- js LeaveNow\r
-\r
-LoopEntry4:\r
-\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- jnz LookupLoop1\r
- jmp LookupLoopIsZero\r
-\r
-\r
-;;; do {\r
-;;; match = s->window + cur_match;\r
-;;; if (*(ushf*)(match+best_len-1) != scan_end ||\r
-;;; *(ushf*)match != scan_start) continue;\r
-;;; [...]\r
-;;; } while ((cur_match = prev[cur_match & wmask]) > limit\r
-;;; && --chain_length != 0);\r
-;;;\r
-;;; Here is the inner loop of the function. The function will spend the\r
-;;; majority of its time in this loop, and majority of that time will\r
-;;; be spent in the first ten instructions.\r
-;;;\r
-;;; Within this loop:\r
-;;; ebx = scanend\r
-;;; r8d = curmatch\r
-;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)\r
-;;; esi = windowbestlen - i.e., (window + bestlen)\r
-;;; edi = prev\r
-;;; ebp = limit\r
-\r
-LookupLoop:\r
- and r8d, edx\r
-\r
- movzx r8d, word ptr [rdi + r8*2]\r
- cmp r8d, ebp\r
- jbe LeaveNow\r
- sub edx, 00010000h\r
- js LeaveNow\r
-\r
-LoopEntry:\r
-\r
- cmp bx,word ptr [rsi + r8 - 1]\r
- jnz LookupLoop1\r
-LookupLoopIsZero:\r
- cmp r12w, word ptr [r10 + r8]\r
- jnz LookupLoop1\r
-\r
-\r
-;;; Store the current value of chainlen.\r
- mov [chainlenwmask], edx\r
-\r
-;;; Point edi to the string under scrutiny, and esi to the string we\r
-;;; are hoping to match it up with. In actuality, esi and edi are\r
-;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is\r
-;;; initialized to -(MAX_MATCH_8 - scanalign).\r
-\r
- lea rsi,[r8+r10]\r
- mov rdx, 0fffffffffffffef8h; -(MAX_MATCH_8)\r
- lea rsi, [rsi + r13 + 0108h] ;MAX_MATCH_8]\r
- lea rdi, [r9 + r13 + 0108h] ;MAX_MATCH_8]\r
-\r
- prefetcht1 [rsi+rdx]\r
- prefetcht1 [rdi+rdx]\r
-\r
-\r
-;;; Test the strings for equality, 8 bytes at a time. At the end,\r
-;;; adjust rdx so that it is offset to the exact byte that mismatched.\r
-;;;\r
-;;; We already know at this point that the first three bytes of the\r
-;;; strings match each other, and they can be safely passed over before\r
-;;; starting the compare loop. So what this code does is skip over 0-3\r
-;;; bytes, as much as necessary in order to dword-align the edi\r
-;;; pointer. (rsi will still be misaligned three times out of four.)\r
-;;;\r
-;;; It should be confessed that this loop usually does not represent\r
-;;; much of the total running time. Replacing it with a more\r
-;;; straightforward "rep cmpsb" would not drastically degrade\r
-;;; performance.\r
-\r
-\r
-LoopCmps:\r
- mov rax, [rsi + rdx]\r
- xor rax, [rdi + rdx]\r
- jnz LeaveLoopCmps\r
-\r
- mov rax, [rsi + rdx + 8]\r
- xor rax, [rdi + rdx + 8]\r
- jnz LeaveLoopCmps8\r
-\r
-\r
- mov rax, [rsi + rdx + 8+8]\r
- xor rax, [rdi + rdx + 8+8]\r
- jnz LeaveLoopCmps16\r
-\r
- add rdx,8+8+8\r
-\r
- jnz short LoopCmps\r
- jmp short LenMaximum\r
-LeaveLoopCmps16: add rdx,8\r
-LeaveLoopCmps8: add rdx,8\r
-LeaveLoopCmps:\r
-\r
- test eax, 0000FFFFh\r
- jnz LenLower\r
-\r
- test eax,0ffffffffh\r
-\r
- jnz LenLower32\r
-\r
- add rdx,4\r
- shr rax,32\r
- or ax,ax\r
- jnz LenLower\r
-\r
-LenLower32:\r
- shr eax,16\r
- add rdx,2\r
-LenLower: sub al, 1\r
- adc rdx, 0\r
-;;; Calculate the length of the match. If it is longer than MAX_MATCH,\r
-;;; then automatically accept it as the best possible match and leave.\r
-\r
- lea rax, [rdi + rdx]\r
- sub rax, r9\r
- cmp eax, MAX_MATCH\r
- jge LenMaximum\r
-\r
-;;; If the length of the match is not longer than the best match we\r
-;;; have so far, then forget it and return to the lookup loop.\r
-;///////////////////////////////////\r
-\r
- cmp eax, r11d\r
- jg LongerMatch\r
-\r
- lea rsi,[r10+r11]\r
-\r
- mov rdi, prev_ad\r
- mov edx, [chainlenwmask]\r
- jmp LookupLoop\r
-\r
-;;; s->match_start = cur_match;\r
-;;; best_len = len;\r
-;;; if (len >= nice_match) break;\r
-;;; scan_end = *(ushf*)(scan+best_len-1);\r
-\r
-LongerMatch:\r
- mov r11d, eax\r
- mov match_start, r8d\r
- cmp eax, [nicematch]\r
- jge LeaveNow\r
-\r
- lea rsi,[r10+rax]\r
-\r
- movzx ebx, word ptr [r9 + rax - 1]\r
- mov rdi, prev_ad\r
- mov edx, [chainlenwmask]\r
- jmp LookupLoop\r
-\r
-;;; Accept the current string, with the maximum possible length.\r
-\r
-LenMaximum:\r
- mov r11d,MAX_MATCH\r
- mov match_start, r8d\r
-\r
-;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;\r
-;;; return s->lookahead;\r
-\r
-LeaveNow:\r
-IFDEF INFOZIP\r
- mov eax,r11d\r
-ELSE\r
- mov eax, Lookahead\r
- cmp r11d, eax\r
- cmovng eax, r11d\r
-ENDIF\r
-\r
-;;; Restore the stack and return from whence we came.\r
-\r
-\r
- mov rsi,[save_rsi]\r
- mov rdi,[save_rdi]\r
- mov rbx,[save_rbx]\r
- mov rbp,[save_rbp]\r
- mov r12,[save_r12]\r
- mov r13,[save_r13]\r
-; mov r14,[save_r14]\r
-; mov r15,[save_r15]\r
-\r
-\r
- ret 0\r
-; please don't remove this string !\r
-; Your can freely use gvmat64 in any free or commercial app\r
-; but it is far better don't remove the string in the binary!\r
- db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0\r
-longest_match ENDP\r
-\r
-match_init PROC\r
- ret 0\r
-match_init ENDP\r
-\r
-\r
-END\r
+++ /dev/null
-/* inffas8664.c is a hand tuned assembler version of inffast.c - fast decoding\r
- * version for AMD64 on Windows using Microsoft C compiler\r
- *\r
- * Copyright (C) 1995-2003 Mark Adler\r
- * For conditions of distribution and use, see copyright notice in zlib.h\r
- *\r
- * Copyright (C) 2003 Chris Anderson <christop@charm.net>\r
- * Please use the copyright conditions above.\r
- *\r
- * 2005 - Adaptation to Microsoft C Compiler for AMD64 by Gilles Vollant\r
- *\r
- * inffas8664.c call function inffas8664fnc in inffasx64.asm\r
- * inffasx64.asm is automatically convert from AMD64 portion of inffas86.c\r
- *\r
- * Dec-29-2003 -- I added AMD64 inflate asm support. This version is also\r
- * slightly quicker on x86 systems because, instead of using rep movsb to copy\r
- * data, it uses rep movsw, which moves data in 2-byte chunks instead of single\r
- * bytes. I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates\r
- * from http://fedora.linux.duke.edu/fc1_x86_64\r
- * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with\r
- * 1GB ram. The 64-bit version is about 4% faster than the 32-bit version,\r
- * when decompressing mozilla-source-1.3.tar.gz.\r
- *\r
- * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from\r
- * the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at\r
- * the moment. I have successfully compiled and tested this code with gcc2.96,\r
- * gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S\r
- * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX\r
- * enabled. I will attempt to merge the MMX code into this version. Newer\r
- * versions of this and inffast.S can be found at\r
- * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/\r
- *\r
- */\r
-\r
-#include <stdio.h>\r
-#include "zutil.h"\r
-#include "inftrees.h"\r
-#include "inflate.h"\r
-#include "inffast.h"\r
-\r
-/* Mark Adler's comments from inffast.c: */\r
-\r
-/*\r
- Decode literal, length, and distance codes and write out the resulting\r
- literal and match bytes until either not enough input or output is\r
- available, an end-of-block is encountered, or a data error is encountered.\r
- When large enough input and output buffers are supplied to inflate(), for\r
- example, a 16K input buffer and a 64K output buffer, more than 95% of the\r
- inflate execution time is spent in this routine.\r
-\r
- Entry assumptions:\r
-\r
- state->mode == LEN\r
- strm->avail_in >= 6\r
- strm->avail_out >= 258\r
- start >= strm->avail_out\r
- state->bits < 8\r
-\r
- On return, state->mode is one of:\r
-\r
- LEN -- ran out of enough output space or enough available input\r
- TYPE -- reached end of block code, inflate() to interpret next block\r
- BAD -- error in block data\r
-\r
- Notes:\r
-\r
- - The maximum input bits used by a length/distance pair is 15 bits for the\r
- length code, 5 bits for the length extra, 15 bits for the distance code,\r
- and 13 bits for the distance extra. This totals 48 bits, or six bytes.\r
- Therefore if strm->avail_in >= 6, then there is enough input to avoid\r
- checking for available input while decoding.\r
-\r
- - The maximum bytes that a single length/distance pair can output is 258\r
- bytes, which is the maximum length that can be coded. inflate_fast()\r
- requires strm->avail_out >= 258 for each loop to avoid checking for\r
- output space.\r
- */\r
-\r
-\r
-\r
- typedef struct inffast_ar {\r
-/* 64 32 x86 x86_64 */\r
-/* ar offset register */\r
-/* 0 0 */ void *esp; /* esp save */\r
-/* 8 4 */ void *ebp; /* ebp save */\r
-/* 16 8 */ unsigned char FAR *in; /* esi rsi local strm->next_in */\r
-/* 24 12 */ unsigned char FAR *last; /* r9 while in < last */\r
-/* 32 16 */ unsigned char FAR *out; /* edi rdi local strm->next_out */\r
-/* 40 20 */ unsigned char FAR *beg; /* inflate()'s init next_out */\r
-/* 48 24 */ unsigned char FAR *end; /* r10 while out < end */\r
-/* 56 28 */ unsigned char FAR *window;/* size of window, wsize!=0 */\r
-/* 64 32 */ code const FAR *lcode; /* ebp rbp local strm->lencode */\r
-/* 72 36 */ code const FAR *dcode; /* r11 local strm->distcode */\r
-/* 80 40 */ size_t /*unsigned long */hold; /* edx rdx local strm->hold */\r
-/* 88 44 */ unsigned bits; /* ebx rbx local strm->bits */\r
-/* 92 48 */ unsigned wsize; /* window size */\r
-/* 96 52 */ unsigned write; /* window write index */\r
-/*100 56 */ unsigned lmask; /* r12 mask for lcode */\r
-/*104 60 */ unsigned dmask; /* r13 mask for dcode */\r
-/*108 64 */ unsigned len; /* r14 match length */\r
-/*112 68 */ unsigned dist; /* r15 match distance */\r
-/*116 72 */ unsigned status; /* set when state chng*/\r
- } type_ar;\r
-#ifdef ASMINF\r
-\r
-void inflate_fast(strm, start)\r
-z_streamp strm;\r
-unsigned start; /* inflate()'s starting value for strm->avail_out */\r
-{\r
- struct inflate_state FAR *state;\r
- type_ar ar;\r
- void inffas8664fnc(struct inffast_ar * par);\r
-\r
-\r
-\r
-#if (defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )) || (defined(_MSC_VER) && defined(_M_AMD64))\r
-#define PAD_AVAIL_IN 6\r
-#define PAD_AVAIL_OUT 258\r
-#else\r
-#define PAD_AVAIL_IN 5\r
-#define PAD_AVAIL_OUT 257\r
-#endif\r
-\r
- /* copy state to local variables */\r
- state = (struct inflate_state FAR *)strm->state;\r
-\r
- ar.in = strm->next_in;\r
- ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);\r
- ar.out = strm->next_out;\r
- ar.beg = ar.out - (start - strm->avail_out);\r
- ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);\r
- ar.wsize = state->wsize;\r
- ar.write = state->wnext;\r
- ar.window = state->window;\r
- ar.hold = state->hold;\r
- ar.bits = state->bits;\r
- ar.lcode = state->lencode;\r
- ar.dcode = state->distcode;\r
- ar.lmask = (1U << state->lenbits) - 1;\r
- ar.dmask = (1U << state->distbits) - 1;\r
-\r
- /* decode literals and length/distances until end-of-block or not enough\r
- input data or output space */\r
-\r
- /* align in on 1/2 hold size boundary */\r
- while (((size_t)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {\r
- ar.hold += (unsigned long)*ar.in++ << ar.bits;\r
- ar.bits += 8;\r
- }\r
-\r
- inffas8664fnc(&ar);\r
-\r
- if (ar.status > 1) {\r
- if (ar.status == 2)\r
- strm->msg = "invalid literal/length code";\r
- else if (ar.status == 3)\r
- strm->msg = "invalid distance code";\r
- else\r
- strm->msg = "invalid distance too far back";\r
- state->mode = BAD;\r
- }\r
- else if ( ar.status == 1 ) {\r
- state->mode = TYPE;\r
- }\r
-\r
- /* return unused bytes (on entry, bits < 8, so in won't go too far back) */\r
- ar.len = ar.bits >> 3;\r
- ar.in -= ar.len;\r
- ar.bits -= ar.len << 3;\r
- ar.hold &= (1U << ar.bits) - 1;\r
-\r
- /* update state and return */\r
- strm->next_in = ar.in;\r
- strm->next_out = ar.out;\r
- strm->avail_in = (unsigned)(ar.in < ar.last ?\r
- PAD_AVAIL_IN + (ar.last - ar.in) :\r
- PAD_AVAIL_IN - (ar.in - ar.last));\r
- strm->avail_out = (unsigned)(ar.out < ar.end ?\r
- PAD_AVAIL_OUT + (ar.end - ar.out) :\r
- PAD_AVAIL_OUT - (ar.out - ar.end));\r
- state->hold = (unsigned long)ar.hold;\r
- state->bits = ar.bits;\r
- return;\r
-}\r
-\r
-#endif\r
+++ /dev/null
-; inffasx64.asm is a hand tuned assembler version of inffast.c - fast decoding\r
-; version for AMD64 on Windows using Microsoft C compiler\r
-;\r
-; inffasx64.asm is automatically convert from AMD64 portion of inffas86.c\r
-; inffasx64.asm is called by inffas8664.c, which contain more info.\r
-\r
-\r
-; to compile this file, I use option\r
-; ml64.exe /Flinffasx64 /c /Zi inffasx64.asm\r
-; with Microsoft Macro Assembler (x64) for AMD64\r
-;\r
-\r
-; This file compile with Microsoft Macro Assembler (x64) for AMD64\r
-;\r
-; ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK\r
-;\r
-; (you can get Windows WDK with ml64 for AMD64 from\r
-; http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)\r
-;\r
-\r
-\r
-.code\r
-inffas8664fnc PROC\r
-\r
-; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and\r
-; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp\r
-;\r
-; All registers must be preserved across the call, except for\r
-; rax, rcx, rdx, r8, r-9, r10, and r11, which are scratch.\r
-\r
-\r
- mov [rsp-8],rsi\r
- mov [rsp-16],rdi\r
- mov [rsp-24],r12\r
- mov [rsp-32],r13\r
- mov [rsp-40],r14\r
- mov [rsp-48],r15\r
- mov [rsp-56],rbx\r
-\r
- mov rax,rcx\r
-\r
- mov [rax+8], rbp ; /* save regs rbp and rsp */\r
- mov [rax], rsp\r
-\r
- mov rsp, rax ; /* make rsp point to &ar */\r
-\r
- mov rsi, [rsp+16] ; /* rsi = in */\r
- mov rdi, [rsp+32] ; /* rdi = out */\r
- mov r9, [rsp+24] ; /* r9 = last */\r
- mov r10, [rsp+48] ; /* r10 = end */\r
- mov rbp, [rsp+64] ; /* rbp = lcode */\r
- mov r11, [rsp+72] ; /* r11 = dcode */\r
- mov rdx, [rsp+80] ; /* rdx = hold */\r
- mov ebx, [rsp+88] ; /* ebx = bits */\r
- mov r12d, [rsp+100] ; /* r12d = lmask */\r
- mov r13d, [rsp+104] ; /* r13d = dmask */\r
- ; /* r14d = len */\r
- ; /* r15d = dist */\r
-\r
-\r
- cld\r
- cmp r10, rdi\r
- je L_one_time ; /* if only one decode left */\r
- cmp r9, rsi\r
-\r
- jne L_do_loop\r
-\r
-\r
-L_one_time:\r
- mov r8, r12 ; /* r8 = lmask */\r
- cmp bl, 32\r
- ja L_get_length_code_one_time\r
-\r
- lodsd ; /* eax = *(uint *)in++ */\r
- mov cl, bl ; /* cl = bits, needs it for shifting */\r
- add bl, 32 ; /* bits += 32 */\r
- shl rax, cl\r
- or rdx, rax ; /* hold |= *((uint *)in)++ << bits */\r
- jmp L_get_length_code_one_time\r
-\r
-ALIGN 4\r
-L_while_test:\r
- cmp r10, rdi\r
- jbe L_break_loop\r
- cmp r9, rsi\r
- jbe L_break_loop\r
-\r
-L_do_loop:\r
- mov r8, r12 ; /* r8 = lmask */\r
- cmp bl, 32\r
- ja L_get_length_code ; /* if (32 < bits) */\r
-\r
- lodsd ; /* eax = *(uint *)in++ */\r
- mov cl, bl ; /* cl = bits, needs it for shifting */\r
- add bl, 32 ; /* bits += 32 */\r
- shl rax, cl\r
- or rdx, rax ; /* hold |= *((uint *)in)++ << bits */\r
-\r
-L_get_length_code:\r
- and r8, rdx ; /* r8 &= hold */\r
- mov eax, [rbp+r8*4] ; /* eax = lcode[hold & lmask] */\r
-\r
- mov cl, ah ; /* cl = this.bits */\r
- sub bl, ah ; /* bits -= this.bits */\r
- shr rdx, cl ; /* hold >>= this.bits */\r
-\r
- test al, al\r
- jnz L_test_for_length_base ; /* if (op != 0) 45.7% */\r
-\r
- mov r8, r12 ; /* r8 = lmask */\r
- shr eax, 16 ; /* output this.val char */\r
- stosb\r
-\r
-L_get_length_code_one_time:\r
- and r8, rdx ; /* r8 &= hold */\r
- mov eax, [rbp+r8*4] ; /* eax = lcode[hold & lmask] */\r
-\r
-L_dolen:\r
- mov cl, ah ; /* cl = this.bits */\r
- sub bl, ah ; /* bits -= this.bits */\r
- shr rdx, cl ; /* hold >>= this.bits */\r
-\r
- test al, al\r
- jnz L_test_for_length_base ; /* if (op != 0) 45.7% */\r
-\r
- shr eax, 16 ; /* output this.val char */\r
- stosb\r
- jmp L_while_test\r
-\r
-ALIGN 4\r
-L_test_for_length_base:\r
- mov r14d, eax ; /* len = this */\r
- shr r14d, 16 ; /* len = this.val */\r
- mov cl, al\r
-\r
- test al, 16\r
- jz L_test_for_second_level_length ; /* if ((op & 16) == 0) 8% */\r
- and cl, 15 ; /* op &= 15 */\r
- jz L_decode_distance ; /* if (!op) */\r
-\r
-L_add_bits_to_len:\r
- sub bl, cl\r
- xor eax, eax\r
- inc eax\r
- shl eax, cl\r
- dec eax\r
- and eax, edx ; /* eax &= hold */\r
- shr rdx, cl\r
- add r14d, eax ; /* len += hold & mask[op] */\r
-\r
-L_decode_distance:\r
- mov r8, r13 ; /* r8 = dmask */\r
- cmp bl, 32\r
- ja L_get_distance_code ; /* if (32 < bits) */\r
-\r
- lodsd ; /* eax = *(uint *)in++ */\r
- mov cl, bl ; /* cl = bits, needs it for shifting */\r
- add bl, 32 ; /* bits += 32 */\r
- shl rax, cl\r
- or rdx, rax ; /* hold |= *((uint *)in)++ << bits */\r
-\r
-L_get_distance_code:\r
- and r8, rdx ; /* r8 &= hold */\r
- mov eax, [r11+r8*4] ; /* eax = dcode[hold & dmask] */\r
-\r
-L_dodist:\r
- mov r15d, eax ; /* dist = this */\r
- shr r15d, 16 ; /* dist = this.val */\r
- mov cl, ah\r
- sub bl, ah ; /* bits -= this.bits */\r
- shr rdx, cl ; /* hold >>= this.bits */\r
- mov cl, al ; /* cl = this.op */\r
-\r
- test al, 16 ; /* if ((op & 16) == 0) */\r
- jz L_test_for_second_level_dist\r
- and cl, 15 ; /* op &= 15 */\r
- jz L_check_dist_one\r
-\r
-L_add_bits_to_dist:\r
- sub bl, cl\r
- xor eax, eax\r
- inc eax\r
- shl eax, cl\r
- dec eax ; /* (1 << op) - 1 */\r
- and eax, edx ; /* eax &= hold */\r
- shr rdx, cl\r
- add r15d, eax ; /* dist += hold & ((1 << op) - 1) */\r
-\r
-L_check_window:\r
- mov r8, rsi ; /* save in so from can use it's reg */\r
- mov rax, rdi\r
- sub rax, [rsp+40] ; /* nbytes = out - beg */\r
-\r
- cmp eax, r15d\r
- jb L_clip_window ; /* if (dist > nbytes) 4.2% */\r
-\r
- mov ecx, r14d ; /* ecx = len */\r
- mov rsi, rdi\r
- sub rsi, r15 ; /* from = out - dist */\r
-\r
- sar ecx, 1\r
- jnc L_copy_two ; /* if len % 2 == 0 */\r
-\r
- rep movsw\r
- mov al, [rsi]\r
- mov [rdi], al\r
- inc rdi\r
-\r
- mov rsi, r8 ; /* move in back to %rsi, toss from */\r
- jmp L_while_test\r
-\r
-L_copy_two:\r
- rep movsw\r
- mov rsi, r8 ; /* move in back to %rsi, toss from */\r
- jmp L_while_test\r
-\r
-ALIGN 4\r
-L_check_dist_one:\r
- cmp r15d, 1 ; /* if dist 1, is a memset */\r
- jne L_check_window\r
- cmp [rsp+40], rdi ; /* if out == beg, outside window */\r
- je L_check_window\r
-\r
- mov ecx, r14d ; /* ecx = len */\r
- mov al, [rdi-1]\r
- mov ah, al\r
-\r
- sar ecx, 1\r
- jnc L_set_two\r
- mov [rdi], al\r
- inc rdi\r
-\r
-L_set_two:\r
- rep stosw\r
- jmp L_while_test\r
-\r
-ALIGN 4\r
-L_test_for_second_level_length:\r
- test al, 64\r
- jnz L_test_for_end_of_block ; /* if ((op & 64) != 0) */\r
-\r
- xor eax, eax\r
- inc eax\r
- shl eax, cl\r
- dec eax\r
- and eax, edx ; /* eax &= hold */\r
- add eax, r14d ; /* eax += len */\r
- mov eax, [rbp+rax*4] ; /* eax = lcode[val+(hold&mask[op])]*/\r
- jmp L_dolen\r
-\r
-ALIGN 4\r
-L_test_for_second_level_dist:\r
- test al, 64\r
- jnz L_invalid_distance_code ; /* if ((op & 64) != 0) */\r
-\r
- xor eax, eax\r
- inc eax\r
- shl eax, cl\r
- dec eax\r
- and eax, edx ; /* eax &= hold */\r
- add eax, r15d ; /* eax += dist */\r
- mov eax, [r11+rax*4] ; /* eax = dcode[val+(hold&mask[op])]*/\r
- jmp L_dodist\r
-\r
-ALIGN 4\r
-L_clip_window:\r
- mov ecx, eax ; /* ecx = nbytes */\r
- mov eax, [rsp+92] ; /* eax = wsize, prepare for dist cmp */\r
- neg ecx ; /* nbytes = -nbytes */\r
-\r
- cmp eax, r15d\r
- jb L_invalid_distance_too_far ; /* if (dist > wsize) */\r
-\r
- add ecx, r15d ; /* nbytes = dist - nbytes */\r
- cmp dword ptr [rsp+96], 0\r
- jne L_wrap_around_window ; /* if (write != 0) */\r
-\r
- mov rsi, [rsp+56] ; /* from = window */\r
- sub eax, ecx ; /* eax -= nbytes */\r
- add rsi, rax ; /* from += wsize - nbytes */\r
-\r
- mov eax, r14d ; /* eax = len */\r
- cmp r14d, ecx\r
- jbe L_do_copy ; /* if (nbytes >= len) */\r
-\r
- sub eax, ecx ; /* eax -= nbytes */\r
- rep movsb\r
- mov rsi, rdi\r
- sub rsi, r15 ; /* from = &out[ -dist ] */\r
- jmp L_do_copy\r
-\r
-ALIGN 4\r
-L_wrap_around_window:\r
- mov eax, [rsp+96] ; /* eax = write */\r
- cmp ecx, eax\r
- jbe L_contiguous_in_window ; /* if (write >= nbytes) */\r
-\r
- mov esi, [rsp+92] ; /* from = wsize */\r
- add rsi, [rsp+56] ; /* from += window */\r
- add rsi, rax ; /* from += write */\r
- sub rsi, rcx ; /* from -= nbytes */\r
- sub ecx, eax ; /* nbytes -= write */\r
-\r
- mov eax, r14d ; /* eax = len */\r
- cmp eax, ecx\r
- jbe L_do_copy ; /* if (nbytes >= len) */\r
-\r
- sub eax, ecx ; /* len -= nbytes */\r
- rep movsb\r
- mov rsi, [rsp+56] ; /* from = window */\r
- mov ecx, [rsp+96] ; /* nbytes = write */\r
- cmp eax, ecx\r
- jbe L_do_copy ; /* if (nbytes >= len) */\r
-\r
- sub eax, ecx ; /* len -= nbytes */\r
- rep movsb\r
- mov rsi, rdi\r
- sub rsi, r15 ; /* from = out - dist */\r
- jmp L_do_copy\r
-\r
-ALIGN 4\r
-L_contiguous_in_window:\r
- mov rsi, [rsp+56] ; /* rsi = window */\r
- add rsi, rax\r
- sub rsi, rcx ; /* from += write - nbytes */\r
-\r
- mov eax, r14d ; /* eax = len */\r
- cmp eax, ecx\r
- jbe L_do_copy ; /* if (nbytes >= len) */\r
-\r
- sub eax, ecx ; /* len -= nbytes */\r
- rep movsb\r
- mov rsi, rdi\r
- sub rsi, r15 ; /* from = out - dist */\r
- jmp L_do_copy ; /* if (nbytes >= len) */\r
-\r
-ALIGN 4\r
-L_do_copy:\r
- mov ecx, eax ; /* ecx = len */\r
- rep movsb\r
-\r
- mov rsi, r8 ; /* move in back to %esi, toss from */\r
- jmp L_while_test\r
-\r
-L_test_for_end_of_block:\r
- test al, 32\r
- jz L_invalid_literal_length_code\r
- mov dword ptr [rsp+116], 1\r
- jmp L_break_loop_with_status\r
-\r
-L_invalid_literal_length_code:\r
- mov dword ptr [rsp+116], 2\r
- jmp L_break_loop_with_status\r
-\r
-L_invalid_distance_code:\r
- mov dword ptr [rsp+116], 3\r
- jmp L_break_loop_with_status\r
-\r
-L_invalid_distance_too_far:\r
- mov dword ptr [rsp+116], 4\r
- jmp L_break_loop_with_status\r
-\r
-L_break_loop:\r
- mov dword ptr [rsp+116], 0\r
-\r
-L_break_loop_with_status:\r
-; /* put in, out, bits, and hold back into ar and pop esp */\r
- mov [rsp+16], rsi ; /* in */\r
- mov [rsp+32], rdi ; /* out */\r
- mov [rsp+88], ebx ; /* bits */\r
- mov [rsp+80], rdx ; /* hold */\r
-\r
- mov rax, [rsp] ; /* restore rbp and rsp */\r
- mov rbp, [rsp+8]\r
- mov rsp, rax\r
-\r
-\r
-\r
- mov rsi,[rsp-8]\r
- mov rdi,[rsp-16]\r
- mov r12,[rsp-24]\r
- mov r13,[rsp-32]\r
- mov r14,[rsp-40]\r
- mov r15,[rsp-48]\r
- mov rbx,[rsp-56]\r
-\r
- ret 0\r
-; :\r
-; : "m" (ar)\r
-; : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",\r
-; "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"\r
-; );\r
-\r
-inffas8664fnc ENDP\r
-;_TEXT ENDS\r
-END\r
+++ /dev/null
-Summary\r
--------\r
-This directory contains ASM implementations of the functions\r
-longest_match() and inflate_fast(), for 64 bits x86 (both AMD64 and Intel EM64t),\r
-for use with Microsoft Macro Assembler (x64) for AMD64 and Microsoft C++ 64 bits.\r
-\r
-gvmat64.asm is written by Gilles Vollant (2005), by using Brian Raiter 686/32 bits\r
- assembly optimized version from Jean-loup Gailly original longest_match function\r
-\r
-inffasx64.asm and inffas8664.c were written by Chris Anderson, by optimizing\r
- original function from Mark Adler\r
-\r
-Use instructions\r
-----------------\r
-Assemble the .asm files using MASM and put the object files into the zlib source\r
-directory. You can also get object files here:\r
-\r
- http://www.winimage.com/zLibDll/zlib124_masm_obj.zip\r
-\r
-define ASMV and ASMINF in your project. Include inffas8664.c in your source tree,\r
-and inffasx64.obj and gvmat64.obj as object to link.\r
-\r
-\r
-Build instructions\r
-------------------\r
-run bld_64.bat with Microsoft Macro Assembler (x64) for AMD64 (ml64.exe)\r
-\r
-ml64.exe is given with Visual Studio 2005, Windows 2003 server DDK\r
-\r
-You can get Windows 2003 server DDK with ml64 and cl for AMD64 from\r
- http://www.microsoft.com/whdc/devtools/ddk/default.mspx for low price)\r
+++ /dev/null
-ml /coff /Zi /c /Flmatch686.lst match686.asm\r
-ml /coff /Zi /c /Flinffas32.lst inffas32.asm\r
+++ /dev/null
-;/* inffas32.asm is a hand tuned assembler version of inffast.c -- fast decoding\r
-; *\r
-; * inffas32.asm is derivated from inffas86.c, with translation of assembly code\r
-; *\r
-; * Copyright (C) 1995-2003 Mark Adler\r
-; * For conditions of distribution and use, see copyright notice in zlib.h\r
-; *\r
-; * Copyright (C) 2003 Chris Anderson <christop@charm.net>\r
-; * Please use the copyright conditions above.\r
-; *\r
-; * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from\r
-; * the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at\r
-; * the moment. I have successfully compiled and tested this code with gcc2.96,\r
-; * gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S\r
-; * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX\r
-; * enabled. I will attempt to merge the MMX code into this version. Newer\r
-; * versions of this and inffast.S can be found at\r
-; * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/\r
-; *\r
-; * 2005 : modification by Gilles Vollant\r
-; */\r
-; For Visual C++ 4.x and higher and ML 6.x and higher\r
-; ml.exe is in directory \MASM611C of Win95 DDK\r
-; ml.exe is also distributed in http://www.masm32.com/masmdl.htm\r
-; and in VC++2003 toolkit at http://msdn.microsoft.com/visualc/vctoolkit2003/\r
-;\r
-;\r
-; compile with command line option\r
-; ml /coff /Zi /c /Flinffas32.lst inffas32.asm\r
-\r
-; if you define NO_GZIP (see inflate.h), compile with\r
-; ml /coff /Zi /c /Flinffas32.lst /DNO_GUNZIP inffas32.asm\r
-\r
-\r
-; zlib122sup is 0 fort zlib 1.2.2.1 and lower\r
-; zlib122sup is 8 fort zlib 1.2.2.2 and more (with addition of dmax and head\r
-; in inflate_state in inflate.h)\r
-zlib1222sup equ 8\r
-\r
-\r
-IFDEF GUNZIP\r
- INFLATE_MODE_TYPE equ 11\r
- INFLATE_MODE_BAD equ 26\r
-ELSE\r
- IFNDEF NO_GUNZIP\r
- INFLATE_MODE_TYPE equ 11\r
- INFLATE_MODE_BAD equ 26\r
- ELSE\r
- INFLATE_MODE_TYPE equ 3\r
- INFLATE_MODE_BAD equ 17\r
- ENDIF\r
-ENDIF\r
-\r
-\r
-; 75 "inffast.S"\r
-;FILE "inffast.S"\r
-\r
-;;;GLOBAL _inflate_fast\r
-\r
-;;;SECTION .text\r
-\r
-\r
-\r
- .586p\r
- .mmx\r
-\r
- name inflate_fast_x86\r
- .MODEL FLAT\r
-\r
-_DATA segment\r
-inflate_fast_use_mmx:\r
- dd 1\r
-\r
-\r
-_TEXT segment\r
-\r
-\r
-\r
-ALIGN 4\r
- db 'Fast decoding Code from Chris Anderson'\r
- db 0\r
-\r
-ALIGN 4\r
-invalid_literal_length_code_msg:\r
- db 'invalid literal/length code'\r
- db 0\r
-\r
-ALIGN 4\r
-invalid_distance_code_msg:\r
- db 'invalid distance code'\r
- db 0\r
-\r
-ALIGN 4\r
-invalid_distance_too_far_msg:\r
- db 'invalid distance too far back'\r
- db 0\r
-\r
-\r
-ALIGN 4\r
-inflate_fast_mask:\r
-dd 0\r
-dd 1\r
-dd 3\r
-dd 7\r
-dd 15\r
-dd 31\r
-dd 63\r
-dd 127\r
-dd 255\r
-dd 511\r
-dd 1023\r
-dd 2047\r
-dd 4095\r
-dd 8191\r
-dd 16383\r
-dd 32767\r
-dd 65535\r
-dd 131071\r
-dd 262143\r
-dd 524287\r
-dd 1048575\r
-dd 2097151\r
-dd 4194303\r
-dd 8388607\r
-dd 16777215\r
-dd 33554431\r
-dd 67108863\r
-dd 134217727\r
-dd 268435455\r
-dd 536870911\r
-dd 1073741823\r
-dd 2147483647\r
-dd 4294967295\r
-\r
-\r
-mode_state equ 0 ;/* state->mode */\r
-wsize_state equ (32+zlib1222sup) ;/* state->wsize */\r
-write_state equ (36+4+zlib1222sup) ;/* state->write */\r
-window_state equ (40+4+zlib1222sup) ;/* state->window */\r
-hold_state equ (44+4+zlib1222sup) ;/* state->hold */\r
-bits_state equ (48+4+zlib1222sup) ;/* state->bits */\r
-lencode_state equ (64+4+zlib1222sup) ;/* state->lencode */\r
-distcode_state equ (68+4+zlib1222sup) ;/* state->distcode */\r
-lenbits_state equ (72+4+zlib1222sup) ;/* state->lenbits */\r
-distbits_state equ (76+4+zlib1222sup) ;/* state->distbits */\r
-\r
-\r
-;;SECTION .text\r
-; 205 "inffast.S"\r
-;GLOBAL inflate_fast_use_mmx\r
-\r
-;SECTION .data\r
-\r
-\r
-; GLOBAL inflate_fast_use_mmx:object\r
-;.size inflate_fast_use_mmx, 4\r
-; 226 "inffast.S"\r
-;SECTION .text\r
-\r
-ALIGN 4\r
-_inflate_fast proc near\r
-.FPO (16, 4, 0, 0, 1, 0)\r
- push edi\r
- push esi\r
- push ebp\r
- push ebx\r
- pushfd\r
- sub esp,64\r
- cld\r
-\r
-\r
-\r
-\r
- mov esi, [esp+88]\r
- mov edi, [esi+28]\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
- mov edx, [esi+4]\r
- mov eax, [esi+0]\r
-\r
- add edx,eax\r
- sub edx,11\r
-\r
- mov [esp+44],eax\r
- mov [esp+20],edx\r
-\r
- mov ebp, [esp+92]\r
- mov ecx, [esi+16]\r
- mov ebx, [esi+12]\r
-\r
- sub ebp,ecx\r
- neg ebp\r
- add ebp,ebx\r
-\r
- sub ecx,257\r
- add ecx,ebx\r
-\r
- mov [esp+60],ebx\r
- mov [esp+40],ebp\r
- mov [esp+16],ecx\r
-; 285 "inffast.S"\r
- mov eax, [edi+lencode_state]\r
- mov ecx, [edi+distcode_state]\r
-\r
- mov [esp+8],eax\r
- mov [esp+12],ecx\r
-\r
- mov eax,1\r
- mov ecx, [edi+lenbits_state]\r
- shl eax,cl\r
- dec eax\r
- mov [esp+0],eax\r
-\r
- mov eax,1\r
- mov ecx, [edi+distbits_state]\r
- shl eax,cl\r
- dec eax\r
- mov [esp+4],eax\r
-\r
- mov eax, [edi+wsize_state]\r
- mov ecx, [edi+write_state]\r
- mov edx, [edi+window_state]\r
-\r
- mov [esp+52],eax\r
- mov [esp+48],ecx\r
- mov [esp+56],edx\r
-\r
- mov ebp, [edi+hold_state]\r
- mov ebx, [edi+bits_state]\r
-; 321 "inffast.S"\r
- mov esi, [esp+44]\r
- mov ecx, [esp+20]\r
- cmp ecx,esi\r
- ja L_align_long\r
-\r
- add ecx,11\r
- sub ecx,esi\r
- mov eax,12\r
- sub eax,ecx\r
- lea edi, [esp+28]\r
- rep movsb\r
- mov ecx,eax\r
- xor eax,eax\r
- rep stosb\r
- lea esi, [esp+28]\r
- mov [esp+20],esi\r
- jmp L_is_aligned\r
-\r
-\r
-L_align_long:\r
- test esi,3\r
- jz L_is_aligned\r
- xor eax,eax\r
- mov al, [esi]\r
- inc esi\r
- mov ecx,ebx\r
- add ebx,8\r
- shl eax,cl\r
- or ebp,eax\r
- jmp L_align_long\r
-\r
-L_is_aligned:\r
- mov edi, [esp+60]\r
-; 366 "inffast.S"\r
-L_check_mmx:\r
- cmp dword ptr [inflate_fast_use_mmx],2\r
- je L_init_mmx\r
- ja L_do_loop\r
-\r
- push eax\r
- push ebx\r
- push ecx\r
- push edx\r
- pushfd\r
- mov eax, [esp]\r
- xor dword ptr [esp],0200000h\r
-\r
-\r
-\r
-\r
- popfd\r
- pushfd\r
- pop edx\r
- xor edx,eax\r
- jz L_dont_use_mmx\r
- xor eax,eax\r
- cpuid\r
- cmp ebx,0756e6547h\r
- jne L_dont_use_mmx\r
- cmp ecx,06c65746eh\r
- jne L_dont_use_mmx\r
- cmp edx,049656e69h\r
- jne L_dont_use_mmx\r
- mov eax,1\r
- cpuid\r
- shr eax,8\r
- and eax,15\r
- cmp eax,6\r
- jne L_dont_use_mmx\r
- test edx,0800000h\r
- jnz L_use_mmx\r
- jmp L_dont_use_mmx\r
-L_use_mmx:\r
- mov dword ptr [inflate_fast_use_mmx],2\r
- jmp L_check_mmx_pop\r
-L_dont_use_mmx:\r
- mov dword ptr [inflate_fast_use_mmx],3\r
-L_check_mmx_pop:\r
- pop edx\r
- pop ecx\r
- pop ebx\r
- pop eax\r
- jmp L_check_mmx\r
-; 426 "inffast.S"\r
-ALIGN 4\r
-L_do_loop:\r
-; 437 "inffast.S"\r
- cmp bl,15\r
- ja L_get_length_code\r
-\r
- xor eax,eax\r
- lodsw\r
- mov cl,bl\r
- add bl,16\r
- shl eax,cl\r
- or ebp,eax\r
-\r
-L_get_length_code:\r
- mov edx, [esp+0]\r
- mov ecx, [esp+8]\r
- and edx,ebp\r
- mov eax, [ecx+edx*4]\r
-\r
-L_dolen:\r
-\r
-\r
-\r
-\r
-\r
-\r
- mov cl,ah\r
- sub bl,ah\r
- shr ebp,cl\r
-\r
-\r
-\r
-\r
-\r
-\r
- test al,al\r
- jnz L_test_for_length_base\r
-\r
- shr eax,16\r
- stosb\r
-\r
-L_while_test:\r
-\r
-\r
- cmp [esp+16],edi\r
- jbe L_break_loop\r
-\r
- cmp [esp+20],esi\r
- ja L_do_loop\r
- jmp L_break_loop\r
-\r
-L_test_for_length_base:\r
-; 502 "inffast.S"\r
- mov edx,eax\r
- shr edx,16\r
- mov cl,al\r
-\r
- test al,16\r
- jz L_test_for_second_level_length\r
- and cl,15\r
- jz L_save_len\r
- cmp bl,cl\r
- jae L_add_bits_to_len\r
-\r
- mov ch,cl\r
- xor eax,eax\r
- lodsw\r
- mov cl,bl\r
- add bl,16\r
- shl eax,cl\r
- or ebp,eax\r
- mov cl,ch\r
-\r
-L_add_bits_to_len:\r
- mov eax,1\r
- shl eax,cl\r
- dec eax\r
- sub bl,cl\r
- and eax,ebp\r
- shr ebp,cl\r
- add edx,eax\r
-\r
-L_save_len:\r
- mov [esp+24],edx\r
-\r
-\r
-L_decode_distance:\r
-; 549 "inffast.S"\r
- cmp bl,15\r
- ja L_get_distance_code\r
-\r
- xor eax,eax\r
- lodsw\r
- mov cl,bl\r
- add bl,16\r
- shl eax,cl\r
- or ebp,eax\r
-\r
-L_get_distance_code:\r
- mov edx, [esp+4]\r
- mov ecx, [esp+12]\r
- and edx,ebp\r
- mov eax, [ecx+edx*4]\r
-\r
-\r
-L_dodist:\r
- mov edx,eax\r
- shr edx,16\r
- mov cl,ah\r
- sub bl,ah\r
- shr ebp,cl\r
-; 584 "inffast.S"\r
- mov cl,al\r
-\r
- test al,16\r
- jz L_test_for_second_level_dist\r
- and cl,15\r
- jz L_check_dist_one\r
- cmp bl,cl\r
- jae L_add_bits_to_dist\r
-\r
- mov ch,cl\r
- xor eax,eax\r
- lodsw\r
- mov cl,bl\r
- add bl,16\r
- shl eax,cl\r
- or ebp,eax\r
- mov cl,ch\r
-\r
-L_add_bits_to_dist:\r
- mov eax,1\r
- shl eax,cl\r
- dec eax\r
- sub bl,cl\r
- and eax,ebp\r
- shr ebp,cl\r
- add edx,eax\r
- jmp L_check_window\r
-\r
-L_check_window:\r
-; 625 "inffast.S"\r
- mov [esp+44],esi\r
- mov eax,edi\r
- sub eax, [esp+40]\r
-\r
- cmp eax,edx\r
- jb L_clip_window\r
-\r
- mov ecx, [esp+24]\r
- mov esi,edi\r
- sub esi,edx\r
-\r
- sub ecx,3\r
- mov al, [esi]\r
- mov [edi],al\r
- mov al, [esi+1]\r
- mov dl, [esi+2]\r
- add esi,3\r
- mov [edi+1],al\r
- mov [edi+2],dl\r
- add edi,3\r
- rep movsb\r
-\r
- mov esi, [esp+44]\r
- jmp L_while_test\r
-\r
-ALIGN 4\r
-L_check_dist_one:\r
- cmp edx,1\r
- jne L_check_window\r
- cmp [esp+40],edi\r
- je L_check_window\r
-\r
- dec edi\r
- mov ecx, [esp+24]\r
- mov al, [edi]\r
- sub ecx,3\r
-\r
- mov [edi+1],al\r
- mov [edi+2],al\r
- mov [edi+3],al\r
- add edi,4\r
- rep stosb\r
-\r
- jmp L_while_test\r
-\r
-ALIGN 4\r
-L_test_for_second_level_length:\r
-\r
-\r
-\r
-\r
- test al,64\r
- jnz L_test_for_end_of_block\r
-\r
- mov eax,1\r
- shl eax,cl\r
- dec eax\r
- and eax,ebp\r
- add eax,edx\r
- mov edx, [esp+8]\r
- mov eax, [edx+eax*4]\r
- jmp L_dolen\r
-\r
-ALIGN 4\r
-L_test_for_second_level_dist:\r
-\r
-\r
-\r
-\r
- test al,64\r
- jnz L_invalid_distance_code\r
-\r
- mov eax,1\r
- shl eax,cl\r
- dec eax\r
- and eax,ebp\r
- add eax,edx\r
- mov edx, [esp+12]\r
- mov eax, [edx+eax*4]\r
- jmp L_dodist\r
-\r
-ALIGN 4\r
-L_clip_window:\r
-; 721 "inffast.S"\r
- mov ecx,eax\r
- mov eax, [esp+52]\r
- neg ecx\r
- mov esi, [esp+56]\r
-\r
- cmp eax,edx\r
- jb L_invalid_distance_too_far\r
-\r
- add ecx,edx\r
- cmp dword ptr [esp+48],0\r
- jne L_wrap_around_window\r
-\r
- sub eax,ecx\r
- add esi,eax\r
-; 749 "inffast.S"\r
- mov eax, [esp+24]\r
- cmp eax,ecx\r
- jbe L_do_copy1\r
-\r
- sub eax,ecx\r
- rep movsb\r
- mov esi,edi\r
- sub esi,edx\r
- jmp L_do_copy1\r
-\r
- cmp eax,ecx\r
- jbe L_do_copy1\r
-\r
- sub eax,ecx\r
- rep movsb\r
- mov esi,edi\r
- sub esi,edx\r
- jmp L_do_copy1\r
-\r
-L_wrap_around_window:\r
-; 793 "inffast.S"\r
- mov eax, [esp+48]\r
- cmp ecx,eax\r
- jbe L_contiguous_in_window\r
-\r
- add esi, [esp+52]\r
- add esi,eax\r
- sub esi,ecx\r
- sub ecx,eax\r
-\r
-\r
- mov eax, [esp+24]\r
- cmp eax,ecx\r
- jbe L_do_copy1\r
-\r
- sub eax,ecx\r
- rep movsb\r
- mov esi, [esp+56]\r
- mov ecx, [esp+48]\r
- cmp eax,ecx\r
- jbe L_do_copy1\r
-\r
- sub eax,ecx\r
- rep movsb\r
- mov esi,edi\r
- sub esi,edx\r
- jmp L_do_copy1\r
-\r
-L_contiguous_in_window:\r
-; 836 "inffast.S"\r
- add esi,eax\r
- sub esi,ecx\r
-\r
-\r
- mov eax, [esp+24]\r
- cmp eax,ecx\r
- jbe L_do_copy1\r
-\r
- sub eax,ecx\r
- rep movsb\r
- mov esi,edi\r
- sub esi,edx\r
-\r
-L_do_copy1:\r
-; 862 "inffast.S"\r
- mov ecx,eax\r
- rep movsb\r
-\r
- mov esi, [esp+44]\r
- jmp L_while_test\r
-; 878 "inffast.S"\r
-ALIGN 4\r
-L_init_mmx:\r
- emms\r
-\r
-\r
-\r
-\r
-\r
- movd mm0,ebp\r
- mov ebp,ebx\r
-; 896 "inffast.S"\r
- movd mm4,dword ptr [esp+0]\r
- movq mm3,mm4\r
- movd mm5,dword ptr [esp+4]\r
- movq mm2,mm5\r
- pxor mm1,mm1\r
- mov ebx, [esp+8]\r
- jmp L_do_loop_mmx\r
-\r
-ALIGN 4\r
-L_do_loop_mmx:\r
- psrlq mm0,mm1\r
-\r
- cmp ebp,32\r
- ja L_get_length_code_mmx\r
-\r
- movd mm6,ebp\r
- movd mm7,dword ptr [esi]\r
- add esi,4\r
- psllq mm7,mm6\r
- add ebp,32\r
- por mm0,mm7\r
-\r
-L_get_length_code_mmx:\r
- pand mm4,mm0\r
- movd eax,mm4\r
- movq mm4,mm3\r
- mov eax, [ebx+eax*4]\r
-\r
-L_dolen_mmx:\r
- movzx ecx,ah\r
- movd mm1,ecx\r
- sub ebp,ecx\r
-\r
- test al,al\r
- jnz L_test_for_length_base_mmx\r
-\r
- shr eax,16\r
- stosb\r
-\r
-L_while_test_mmx:\r
-\r
-\r
- cmp [esp+16],edi\r
- jbe L_break_loop\r
-\r
- cmp [esp+20],esi\r
- ja L_do_loop_mmx\r
- jmp L_break_loop\r
-\r
-L_test_for_length_base_mmx:\r
-\r
- mov edx,eax\r
- shr edx,16\r
-\r
- test al,16\r
- jz L_test_for_second_level_length_mmx\r
- and eax,15\r
- jz L_decode_distance_mmx\r
-\r
- psrlq mm0,mm1\r
- movd mm1,eax\r
- movd ecx,mm0\r
- sub ebp,eax\r
- and ecx, [inflate_fast_mask+eax*4]\r
- add edx,ecx\r
-\r
-L_decode_distance_mmx:\r
- psrlq mm0,mm1\r
-\r
- cmp ebp,32\r
- ja L_get_dist_code_mmx\r
-\r
- movd mm6,ebp\r
- movd mm7,dword ptr [esi]\r
- add esi,4\r
- psllq mm7,mm6\r
- add ebp,32\r
- por mm0,mm7\r
-\r
-L_get_dist_code_mmx:\r
- mov ebx, [esp+12]\r
- pand mm5,mm0\r
- movd eax,mm5\r
- movq mm5,mm2\r
- mov eax, [ebx+eax*4]\r
-\r
-L_dodist_mmx:\r
-\r
- movzx ecx,ah\r
- mov ebx,eax\r
- shr ebx,16\r
- sub ebp,ecx\r
- movd mm1,ecx\r
-\r
- test al,16\r
- jz L_test_for_second_level_dist_mmx\r
- and eax,15\r
- jz L_check_dist_one_mmx\r
-\r
-L_add_bits_to_dist_mmx:\r
- psrlq mm0,mm1\r
- movd mm1,eax\r
- movd ecx,mm0\r
- sub ebp,eax\r
- and ecx, [inflate_fast_mask+eax*4]\r
- add ebx,ecx\r
-\r
-L_check_window_mmx:\r
- mov [esp+44],esi\r
- mov eax,edi\r
- sub eax, [esp+40]\r
-\r
- cmp eax,ebx\r
- jb L_clip_window_mmx\r
-\r
- mov ecx,edx\r
- mov esi,edi\r
- sub esi,ebx\r
-\r
- sub ecx,3\r
- mov al, [esi]\r
- mov [edi],al\r
- mov al, [esi+1]\r
- mov dl, [esi+2]\r
- add esi,3\r
- mov [edi+1],al\r
- mov [edi+2],dl\r
- add edi,3\r
- rep movsb\r
-\r
- mov esi, [esp+44]\r
- mov ebx, [esp+8]\r
- jmp L_while_test_mmx\r
-\r
-ALIGN 4\r
-L_check_dist_one_mmx:\r
- cmp ebx,1\r
- jne L_check_window_mmx\r
- cmp [esp+40],edi\r
- je L_check_window_mmx\r
-\r
- dec edi\r
- mov ecx,edx\r
- mov al, [edi]\r
- sub ecx,3\r
-\r
- mov [edi+1],al\r
- mov [edi+2],al\r
- mov [edi+3],al\r
- add edi,4\r
- rep stosb\r
-\r
- mov ebx, [esp+8]\r
- jmp L_while_test_mmx\r
-\r
-ALIGN 4\r
-L_test_for_second_level_length_mmx:\r
- test al,64\r
- jnz L_test_for_end_of_block\r
-\r
- and eax,15\r
- psrlq mm0,mm1\r
- movd ecx,mm0\r
- and ecx, [inflate_fast_mask+eax*4]\r
- add ecx,edx\r
- mov eax, [ebx+ecx*4]\r
- jmp L_dolen_mmx\r
-\r
-ALIGN 4\r
-L_test_for_second_level_dist_mmx:\r
- test al,64\r
- jnz L_invalid_distance_code\r
-\r
- and eax,15\r
- psrlq mm0,mm1\r
- movd ecx,mm0\r
- and ecx, [inflate_fast_mask+eax*4]\r
- mov eax, [esp+12]\r
- add ecx,ebx\r
- mov eax, [eax+ecx*4]\r
- jmp L_dodist_mmx\r
-\r
-ALIGN 4\r
-L_clip_window_mmx:\r
-\r
- mov ecx,eax\r
- mov eax, [esp+52]\r
- neg ecx\r
- mov esi, [esp+56]\r
-\r
- cmp eax,ebx\r
- jb L_invalid_distance_too_far\r
-\r
- add ecx,ebx\r
- cmp dword ptr [esp+48],0\r
- jne L_wrap_around_window_mmx\r
-\r
- sub eax,ecx\r
- add esi,eax\r
-\r
- cmp edx,ecx\r
- jbe L_do_copy1_mmx\r
-\r
- sub edx,ecx\r
- rep movsb\r
- mov esi,edi\r
- sub esi,ebx\r
- jmp L_do_copy1_mmx\r
-\r
- cmp edx,ecx\r
- jbe L_do_copy1_mmx\r
-\r
- sub edx,ecx\r
- rep movsb\r
- mov esi,edi\r
- sub esi,ebx\r
- jmp L_do_copy1_mmx\r
-\r
-L_wrap_around_window_mmx:\r
-\r
- mov eax, [esp+48]\r
- cmp ecx,eax\r
- jbe L_contiguous_in_window_mmx\r
-\r
- add esi, [esp+52]\r
- add esi,eax\r
- sub esi,ecx\r
- sub ecx,eax\r
-\r
-\r
- cmp edx,ecx\r
- jbe L_do_copy1_mmx\r
-\r
- sub edx,ecx\r
- rep movsb\r
- mov esi, [esp+56]\r
- mov ecx, [esp+48]\r
- cmp edx,ecx\r
- jbe L_do_copy1_mmx\r
-\r
- sub edx,ecx\r
- rep movsb\r
- mov esi,edi\r
- sub esi,ebx\r
- jmp L_do_copy1_mmx\r
-\r
-L_contiguous_in_window_mmx:\r
-\r
- add esi,eax\r
- sub esi,ecx\r
-\r
-\r
- cmp edx,ecx\r
- jbe L_do_copy1_mmx\r
-\r
- sub edx,ecx\r
- rep movsb\r
- mov esi,edi\r
- sub esi,ebx\r
-\r
-L_do_copy1_mmx:\r
-\r
-\r
- mov ecx,edx\r
- rep movsb\r
-\r
- mov esi, [esp+44]\r
- mov ebx, [esp+8]\r
- jmp L_while_test_mmx\r
-; 1174 "inffast.S"\r
-L_invalid_distance_code:\r
-\r
-\r
-\r
-\r
-\r
- mov ecx, invalid_distance_code_msg\r
- mov edx,INFLATE_MODE_BAD\r
- jmp L_update_stream_state\r
-\r
-L_test_for_end_of_block:\r
-\r
-\r
-\r
-\r
-\r
- test al,32\r
- jz L_invalid_literal_length_code\r
-\r
- mov ecx,0\r
- mov edx,INFLATE_MODE_TYPE\r
- jmp L_update_stream_state\r
-\r
-L_invalid_literal_length_code:\r
-\r
-\r
-\r
-\r
-\r
- mov ecx, invalid_literal_length_code_msg\r
- mov edx,INFLATE_MODE_BAD\r
- jmp L_update_stream_state\r
-\r
-L_invalid_distance_too_far:\r
-\r
-\r
-\r
- mov esi, [esp+44]\r
- mov ecx, invalid_distance_too_far_msg\r
- mov edx,INFLATE_MODE_BAD\r
- jmp L_update_stream_state\r
-\r
-L_update_stream_state:\r
-\r
- mov eax, [esp+88]\r
- test ecx,ecx\r
- jz L_skip_msg\r
- mov [eax+24],ecx\r
-L_skip_msg:\r
- mov eax, [eax+28]\r
- mov [eax+mode_state],edx\r
- jmp L_break_loop\r
-\r
-ALIGN 4\r
-L_break_loop:\r
-; 1243 "inffast.S"\r
- cmp dword ptr [inflate_fast_use_mmx],2\r
- jne L_update_next_in\r
-\r
-\r
-\r
- mov ebx,ebp\r
-\r
-L_update_next_in:\r
-; 1266 "inffast.S"\r
- mov eax, [esp+88]\r
- mov ecx,ebx\r
- mov edx, [eax+28]\r
- shr ecx,3\r
- sub esi,ecx\r
- shl ecx,3\r
- sub ebx,ecx\r
- mov [eax+12],edi\r
- mov [edx+bits_state],ebx\r
- mov ecx,ebx\r
-\r
- lea ebx, [esp+28]\r
- cmp [esp+20],ebx\r
- jne L_buf_not_used\r
-\r
- sub esi,ebx\r
- mov ebx, [eax+0]\r
- mov [esp+20],ebx\r
- add esi,ebx\r
- mov ebx, [eax+4]\r
- sub ebx,11\r
- add [esp+20],ebx\r
-\r
-L_buf_not_used:\r
- mov [eax+0],esi\r
-\r
- mov ebx,1\r
- shl ebx,cl\r
- dec ebx\r
-\r
-\r
-\r
-\r
-\r
- cmp dword ptr [inflate_fast_use_mmx],2\r
- jne L_update_hold\r
-\r
-\r
-\r
- psrlq mm0,mm1\r
- movd ebp,mm0\r
-\r
- emms\r
-\r
-L_update_hold:\r
-\r
-\r
-\r
- and ebp,ebx\r
- mov [edx+hold_state],ebp\r
-\r
-\r
-\r
-\r
- mov ebx, [esp+20]\r
- cmp ebx,esi\r
- jbe L_last_is_smaller\r
-\r
- sub ebx,esi\r
- add ebx,11\r
- mov [eax+4],ebx\r
- jmp L_fixup_out\r
-L_last_is_smaller:\r
- sub esi,ebx\r
- neg esi\r
- add esi,11\r
- mov [eax+4],esi\r
-\r
-\r
-\r
-\r
-L_fixup_out:\r
-\r
- mov ebx, [esp+16]\r
- cmp ebx,edi\r
- jbe L_end_is_smaller\r
-\r
- sub ebx,edi\r
- add ebx,257\r
- mov [eax+16],ebx\r
- jmp L_done\r
-L_end_is_smaller:\r
- sub edi,ebx\r
- neg edi\r
- add edi,257\r
- mov [eax+16],edi\r
-\r
-\r
-\r
-\r
-\r
-L_done:\r
- add esp,64\r
- popfd\r
- pop ebx\r
- pop ebp\r
- pop esi\r
- pop edi\r
- ret\r
-_inflate_fast endp\r
-\r
-_TEXT ends\r
-end\r
+++ /dev/null
-; match686.asm -- Asm portion of the optimized longest_match for 32 bits x86\r
-; Copyright (C) 1995-1996 Jean-loup Gailly, Brian Raiter and Gilles Vollant.\r
-; File written by Gilles Vollant, by converting match686.S from Brian Raiter\r
-; for MASM. This is as assembly version of longest_match\r
-; from Jean-loup Gailly in deflate.c\r
-;\r
-; http://www.zlib.net\r
-; http://www.winimage.com/zLibDll\r
-; http://www.muppetlabs.com/~breadbox/software/assembly.html\r
-;\r
-; For Visual C++ 4.x and higher and ML 6.x and higher\r
-; ml.exe is distributed in\r
-; http://www.microsoft.com/downloads/details.aspx?FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64\r
-;\r
-; this file contain two implementation of longest_match\r
-;\r
-; this longest_match was written by Brian raiter (1998), optimized for Pentium Pro\r
-; (and the faster known version of match_init on modern Core 2 Duo and AMD Phenom)\r
-;\r
-; for using an assembly version of longest_match, you need define ASMV in project\r
-;\r
-; compile the asm file running\r
-; ml /coff /Zi /c /Flmatch686.lst match686.asm\r
-; and do not include match686.obj in your project\r
-;\r
-; note: contrib of zLib 1.2.3 and earlier contained both a deprecated version for\r
-; Pentium (prior Pentium Pro) and this version for Pentium Pro and modern processor\r
-; with autoselect (with cpu detection code)\r
-; if you want support the old pentium optimization, you can still use these version\r
-;\r
-; this file is not optimized for old pentium, but it compatible with all x86 32 bits\r
-; processor (starting 80386)\r
-;\r
-;\r
-; see below : zlib1222add must be adjuster if you use a zlib version < 1.2.2.2\r
-\r
-;uInt longest_match(s, cur_match)\r
-; deflate_state *s;\r
-; IPos cur_match; /* current match */\r
-\r
- NbStack equ 76\r
- cur_match equ dword ptr[esp+NbStack-0]\r
- str_s equ dword ptr[esp+NbStack-4]\r
-; 5 dword on top (ret,ebp,esi,edi,ebx)\r
- adrret equ dword ptr[esp+NbStack-8]\r
- pushebp equ dword ptr[esp+NbStack-12]\r
- pushedi equ dword ptr[esp+NbStack-16]\r
- pushesi equ dword ptr[esp+NbStack-20]\r
- pushebx equ dword ptr[esp+NbStack-24]\r
-\r
- chain_length equ dword ptr [esp+NbStack-28]\r
- limit equ dword ptr [esp+NbStack-32]\r
- best_len equ dword ptr [esp+NbStack-36]\r
- window equ dword ptr [esp+NbStack-40]\r
- prev equ dword ptr [esp+NbStack-44]\r
- scan_start equ word ptr [esp+NbStack-48]\r
- wmask equ dword ptr [esp+NbStack-52]\r
- match_start_ptr equ dword ptr [esp+NbStack-56]\r
- nice_match equ dword ptr [esp+NbStack-60]\r
- scan equ dword ptr [esp+NbStack-64]\r
-\r
- windowlen equ dword ptr [esp+NbStack-68]\r
- match_start equ dword ptr [esp+NbStack-72]\r
- strend equ dword ptr [esp+NbStack-76]\r
- NbStackAdd equ (NbStack-24)\r
-\r
- .386p\r
-\r
- name gvmatch\r
- .MODEL FLAT\r
-\r
-\r
-\r
-; all the +zlib1222add offsets are due to the addition of fields\r
-; in zlib in the deflate_state structure since the asm code was first written\r
-; (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").\r
-; (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").\r
-; if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").\r
-\r
- zlib1222add equ 8\r
-\r
-; Note : these value are good with a 8 bytes boundary pack structure\r
- dep_chain_length equ 74h+zlib1222add\r
- dep_window equ 30h+zlib1222add\r
- dep_strstart equ 64h+zlib1222add\r
- dep_prev_length equ 70h+zlib1222add\r
- dep_nice_match equ 88h+zlib1222add\r
- dep_w_size equ 24h+zlib1222add\r
- dep_prev equ 38h+zlib1222add\r
- dep_w_mask equ 2ch+zlib1222add\r
- dep_good_match equ 84h+zlib1222add\r
- dep_match_start equ 68h+zlib1222add\r
- dep_lookahead equ 6ch+zlib1222add\r
-\r
-\r
-_TEXT segment\r
-\r
-IFDEF NOUNDERLINE\r
- public longest_match\r
- public match_init\r
-ELSE\r
- public _longest_match\r
- public _match_init\r
-ENDIF\r
-\r
- MAX_MATCH equ 258\r
- MIN_MATCH equ 3\r
- MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)\r
-\r
-\r
-\r
-MAX_MATCH equ 258\r
-MIN_MATCH equ 3\r
-MIN_LOOKAHEAD equ (MAX_MATCH + MIN_MATCH + 1)\r
-MAX_MATCH_8_ equ ((MAX_MATCH + 7) AND 0FFF0h)\r
-\r
-\r
-;;; stack frame offsets\r
-\r
-chainlenwmask equ esp + 0 ; high word: current chain len\r
- ; low word: s->wmask\r
-window equ esp + 4 ; local copy of s->window\r
-windowbestlen equ esp + 8 ; s->window + bestlen\r
-scanstart equ esp + 16 ; first two bytes of string\r
-scanend equ esp + 12 ; last two bytes of string\r
-scanalign equ esp + 20 ; dword-misalignment of string\r
-nicematch equ esp + 24 ; a good enough match size\r
-bestlen equ esp + 28 ; size of best match so far\r
-scan equ esp + 32 ; ptr to string wanting match\r
-\r
-LocalVarsSize equ 36\r
-; saved ebx byte esp + 36\r
-; saved edi byte esp + 40\r
-; saved esi byte esp + 44\r
-; saved ebp byte esp + 48\r
-; return address byte esp + 52\r
-deflatestate equ esp + 56 ; the function arguments\r
-curmatch equ esp + 60\r
-\r
-;;; Offsets for fields in the deflate_state structure. These numbers\r
-;;; are calculated from the definition of deflate_state, with the\r
-;;; assumption that the compiler will dword-align the fields. (Thus,\r
-;;; changing the definition of deflate_state could easily cause this\r
-;;; program to crash horribly, without so much as a warning at\r
-;;; compile time. Sigh.)\r
-\r
-dsWSize equ 36+zlib1222add\r
-dsWMask equ 44+zlib1222add\r
-dsWindow equ 48+zlib1222add\r
-dsPrev equ 56+zlib1222add\r
-dsMatchLen equ 88+zlib1222add\r
-dsPrevMatch equ 92+zlib1222add\r
-dsStrStart equ 100+zlib1222add\r
-dsMatchStart equ 104+zlib1222add\r
-dsLookahead equ 108+zlib1222add\r
-dsPrevLen equ 112+zlib1222add\r
-dsMaxChainLen equ 116+zlib1222add\r
-dsGoodMatch equ 132+zlib1222add\r
-dsNiceMatch equ 136+zlib1222add\r
-\r
-\r
-;;; match686.asm -- Pentium-Pro-optimized version of longest_match()\r
-;;; Written for zlib 1.1.2\r
-;;; Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>\r
-;;; You can look at http://www.muppetlabs.com/~breadbox/software/assembly.html\r
-;;;\r
-;;\r
-;; This software is provided 'as-is', without any express or implied\r
-;; warranty. In no event will the authors be held liable for any damages\r
-;; arising from the use of this software.\r
-;;\r
-;; Permission is granted to anyone to use this software for any purpose,\r
-;; including commercial applications, and to alter it and redistribute it\r
-;; freely, subject to the following restrictions:\r
-;;\r
-;; 1. The origin of this software must not be misrepresented; you must not\r
-;; claim that you wrote the original software. If you use this software\r
-;; in a product, an acknowledgment in the product documentation would be\r
-;; appreciated but is not required.\r
-;; 2. Altered source versions must be plainly marked as such, and must not be\r
-;; misrepresented as being the original software\r
-;; 3. This notice may not be removed or altered from any source distribution.\r
-;;\r
-\r
-;GLOBAL _longest_match, _match_init\r
-\r
-\r
-;SECTION .text\r
-\r
-;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch)\r
-\r
-;_longest_match:\r
- IFDEF NOUNDERLINE\r
- longest_match proc near\r
- ELSE\r
- _longest_match proc near\r
- ENDIF\r
-.FPO (9, 4, 0, 0, 1, 0)\r
-\r
-;;; Save registers that the compiler may be using, and adjust esp to\r
-;;; make room for our stack frame.\r
-\r
- push ebp\r
- push edi\r
- push esi\r
- push ebx\r
- sub esp, LocalVarsSize\r
-\r
-;;; Retrieve the function arguments. ecx will hold cur_match\r
-;;; throughout the entire function. edx will hold the pointer to the\r
-;;; deflate_state structure during the function's setup (before\r
-;;; entering the main loop.\r
-\r
- mov edx, [deflatestate]\r
- mov ecx, [curmatch]\r
-\r
-;;; uInt wmask = s->w_mask;\r
-;;; unsigned chain_length = s->max_chain_length;\r
-;;; if (s->prev_length >= s->good_match) {\r
-;;; chain_length >>= 2;\r
-;;; }\r
-\r
- mov eax, [edx + dsPrevLen]\r
- mov ebx, [edx + dsGoodMatch]\r
- cmp eax, ebx\r
- mov eax, [edx + dsWMask]\r
- mov ebx, [edx + dsMaxChainLen]\r
- jl LastMatchGood\r
- shr ebx, 2\r
-LastMatchGood:\r
-\r
-;;; chainlen is decremented once beforehand so that the function can\r
-;;; use the sign flag instead of the zero flag for the exit test.\r
-;;; It is then shifted into the high word, to make room for the wmask\r
-;;; value, which it will always accompany.\r
-\r
- dec ebx\r
- shl ebx, 16\r
- or ebx, eax\r
- mov [chainlenwmask], ebx\r
-\r
-;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;\r
-\r
- mov eax, [edx + dsNiceMatch]\r
- mov ebx, [edx + dsLookahead]\r
- cmp ebx, eax\r
- jl LookaheadLess\r
- mov ebx, eax\r
-LookaheadLess: mov [nicematch], ebx\r
-\r
-;;; register Bytef *scan = s->window + s->strstart;\r
-\r
- mov esi, [edx + dsWindow]\r
- mov [window], esi\r
- mov ebp, [edx + dsStrStart]\r
- lea edi, [esi + ebp]\r
- mov [scan], edi\r
-\r
-;;; Determine how many bytes the scan ptr is off from being\r
-;;; dword-aligned.\r
-\r
- mov eax, edi\r
- neg eax\r
- and eax, 3\r
- mov [scanalign], eax\r
-\r
-;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?\r
-;;; s->strstart - (IPos)MAX_DIST(s) : NIL;\r
-\r
- mov eax, [edx + dsWSize]\r
- sub eax, MIN_LOOKAHEAD\r
- sub ebp, eax\r
- jg LimitPositive\r
- xor ebp, ebp\r
-LimitPositive:\r
-\r
-;;; int best_len = s->prev_length;\r
-\r
- mov eax, [edx + dsPrevLen]\r
- mov [bestlen], eax\r
-\r
-;;; Store the sum of s->window + best_len in esi locally, and in esi.\r
-\r
- add esi, eax\r
- mov [windowbestlen], esi\r
-\r
-;;; register ush scan_start = *(ushf*)scan;\r
-;;; register ush scan_end = *(ushf*)(scan+best_len-1);\r
-;;; Posf *prev = s->prev;\r
-\r
- movzx ebx, word ptr [edi]\r
- mov [scanstart], ebx\r
- movzx ebx, word ptr [edi + eax - 1]\r
- mov [scanend], ebx\r
- mov edi, [edx + dsPrev]\r
-\r
-;;; Jump into the main loop.\r
-\r
- mov edx, [chainlenwmask]\r
- jmp short LoopEntry\r
-\r
-align 4\r
-\r
-;;; do {\r
-;;; match = s->window + cur_match;\r
-;;; if (*(ushf*)(match+best_len-1) != scan_end ||\r
-;;; *(ushf*)match != scan_start) continue;\r
-;;; [...]\r
-;;; } while ((cur_match = prev[cur_match & wmask]) > limit\r
-;;; && --chain_length != 0);\r
-;;;\r
-;;; Here is the inner loop of the function. The function will spend the\r
-;;; majority of its time in this loop, and majority of that time will\r
-;;; be spent in the first ten instructions.\r
-;;;\r
-;;; Within this loop:\r
-;;; ebx = scanend\r
-;;; ecx = curmatch\r
-;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)\r
-;;; esi = windowbestlen - i.e., (window + bestlen)\r
-;;; edi = prev\r
-;;; ebp = limit\r
-\r
-LookupLoop:\r
- and ecx, edx\r
- movzx ecx, word ptr [edi + ecx*2]\r
- cmp ecx, ebp\r
- jbe LeaveNow\r
- sub edx, 00010000h\r
- js LeaveNow\r
-LoopEntry: movzx eax, word ptr [esi + ecx - 1]\r
- cmp eax, ebx\r
- jnz LookupLoop\r
- mov eax, [window]\r
- movzx eax, word ptr [eax + ecx]\r
- cmp eax, [scanstart]\r
- jnz LookupLoop\r
-\r
-;;; Store the current value of chainlen.\r
-\r
- mov [chainlenwmask], edx\r
-\r
-;;; Point edi to the string under scrutiny, and esi to the string we\r
-;;; are hoping to match it up with. In actuality, esi and edi are\r
-;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is\r
-;;; initialized to -(MAX_MATCH_8 - scanalign).\r
-\r
- mov esi, [window]\r
- mov edi, [scan]\r
- add esi, ecx\r
- mov eax, [scanalign]\r
- mov edx, 0fffffef8h; -(MAX_MATCH_8)\r
- lea edi, [edi + eax + 0108h] ;MAX_MATCH_8]\r
- lea esi, [esi + eax + 0108h] ;MAX_MATCH_8]\r
-\r
-;;; Test the strings for equality, 8 bytes at a time. At the end,\r
-;;; adjust edx so that it is offset to the exact byte that mismatched.\r
-;;;\r
-;;; We already know at this point that the first three bytes of the\r
-;;; strings match each other, and they can be safely passed over before\r
-;;; starting the compare loop. So what this code does is skip over 0-3\r
-;;; bytes, as much as necessary in order to dword-align the edi\r
-;;; pointer. (esi will still be misaligned three times out of four.)\r
-;;;\r
-;;; It should be confessed that this loop usually does not represent\r
-;;; much of the total running time. Replacing it with a more\r
-;;; straightforward "rep cmpsb" would not drastically degrade\r
-;;; performance.\r
-\r
-LoopCmps:\r
- mov eax, [esi + edx]\r
- xor eax, [edi + edx]\r
- jnz LeaveLoopCmps\r
- mov eax, [esi + edx + 4]\r
- xor eax, [edi + edx + 4]\r
- jnz LeaveLoopCmps4\r
- add edx, 8\r
- jnz LoopCmps\r
- jmp short LenMaximum\r
-LeaveLoopCmps4: add edx, 4\r
-LeaveLoopCmps: test eax, 0000FFFFh\r
- jnz LenLower\r
- add edx, 2\r
- shr eax, 16\r
-LenLower: sub al, 1\r
- adc edx, 0\r
-\r
-;;; Calculate the length of the match. If it is longer than MAX_MATCH,\r
-;;; then automatically accept it as the best possible match and leave.\r
-\r
- lea eax, [edi + edx]\r
- mov edi, [scan]\r
- sub eax, edi\r
- cmp eax, MAX_MATCH\r
- jge LenMaximum\r
-\r
-;;; If the length of the match is not longer than the best match we\r
-;;; have so far, then forget it and return to the lookup loop.\r
-\r
- mov edx, [deflatestate]\r
- mov ebx, [bestlen]\r
- cmp eax, ebx\r
- jg LongerMatch\r
- mov esi, [windowbestlen]\r
- mov edi, [edx + dsPrev]\r
- mov ebx, [scanend]\r
- mov edx, [chainlenwmask]\r
- jmp LookupLoop\r
-\r
-;;; s->match_start = cur_match;\r
-;;; best_len = len;\r
-;;; if (len >= nice_match) break;\r
-;;; scan_end = *(ushf*)(scan+best_len-1);\r
-\r
-LongerMatch: mov ebx, [nicematch]\r
- mov [bestlen], eax\r
- mov [edx + dsMatchStart], ecx\r
- cmp eax, ebx\r
- jge LeaveNow\r
- mov esi, [window]\r
- add esi, eax\r
- mov [windowbestlen], esi\r
- movzx ebx, word ptr [edi + eax - 1]\r
- mov edi, [edx + dsPrev]\r
- mov [scanend], ebx\r
- mov edx, [chainlenwmask]\r
- jmp LookupLoop\r
-\r
-;;; Accept the current string, with the maximum possible length.\r
-\r
-LenMaximum: mov edx, [deflatestate]\r
- mov dword ptr [bestlen], MAX_MATCH\r
- mov [edx + dsMatchStart], ecx\r
-\r
-;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;\r
-;;; return s->lookahead;\r
-\r
-LeaveNow:\r
- mov edx, [deflatestate]\r
- mov ebx, [bestlen]\r
- mov eax, [edx + dsLookahead]\r
- cmp ebx, eax\r
- jg LookaheadRet\r
- mov eax, ebx\r
-LookaheadRet:\r
-\r
-;;; Restore the stack and return from whence we came.\r
-\r
- add esp, LocalVarsSize\r
- pop ebx\r
- pop esi\r
- pop edi\r
- pop ebp\r
-\r
- ret\r
-; please don't remove this string !\r
-; Your can freely use match686 in any free or commercial app if you don't remove the string in the binary!\r
- db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998",0dh,0ah\r
-\r
-\r
- IFDEF NOUNDERLINE\r
- longest_match endp\r
- ELSE\r
- _longest_match endp\r
- ENDIF\r
-\r
- IFDEF NOUNDERLINE\r
- match_init proc near\r
- ret\r
- match_init endp\r
- ELSE\r
- _match_init proc near\r
- ret\r
- _match_init endp\r
- ENDIF\r
-\r
-\r
-_TEXT ends\r
-end\r
+++ /dev/null
-\r
-Summary\r
--------\r
-This directory contains ASM implementations of the functions\r
-longest_match() and inflate_fast().\r
-\r
-\r
-Use instructions\r
-----------------\r
-Assemble using MASM, and copy the object files into the zlib source\r
-directory, then run the appropriate makefile, as suggested below. You can\r
-donwload MASM from here:\r
-\r
- http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64\r
-\r
-You can also get objects files here:\r
-\r
- http://www.winimage.com/zLibDll/zlib124_masm_obj.zip\r
-\r
-Build instructions\r
-------------------\r
-* With Microsoft C and MASM:\r
-nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj"\r
-\r
-* With Borland C and TASM:\r
-make -f win32/Makefile.bor LOCAL_ZLIB="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj" OBJPA="+match686c.obj+match686.obj+inffas32.obj"\r
-\r
+++ /dev/null
-CC=cc
-CFLAGS=-O -I../..
-
-UNZ_OBJS = miniunz.o unzip.o ioapi.o ../../libz.a
-ZIP_OBJS = minizip.o zip.o ioapi.o ../../libz.a
-
-.c.o:
- $(CC) -c $(CFLAGS) $*.c
-
-all: miniunz minizip
-
-miniunz: $(UNZ_OBJS)
- $(CC) $(CFLAGS) -o $@ $(UNZ_OBJS)
-
-minizip: $(ZIP_OBJS)
- $(CC) $(CFLAGS) -o $@ $(ZIP_OBJS)
-
-test: miniunz minizip
- ./minizip test readme.txt
- ./miniunz -l test.zip
- mv readme.txt readme.old
- ./miniunz test.zip
-
-clean:
- /bin/rm -f *.o *~ minizip miniunz
+++ /dev/null
-lib_LTLIBRARIES = libminizip.la
-
-if COND_DEMOS
-bin_PROGRAMS = miniunzip minizip
-endif
-
-zlib_top_srcdir = $(top_srcdir)/../..
-zlib_top_builddir = $(top_builddir)/../..
-
-AM_CPPFLAGS = -I$(zlib_top_srcdir)
-AM_LDFLAGS = -L$(zlib_top_builddir)
-
-if WIN32
-iowin32_src = iowin32.c
-iowin32_h = iowin32.h
-endif
-
-libminizip_la_SOURCES = \
- ioapi.c \
- mztools.c \
- unzip.c \
- zip.c \
- ${iowin32_src}
-
-libminizip_la_LDFLAGS = $(AM_LDFLAGS) -version-info 1:0:0 -lz
-
-minizip_includedir = $(includedir)/minizip
-minizip_include_HEADERS = \
- crypt.h \
- ioapi.h \
- mztools.h \
- unzip.h \
- zip.h \
- ${iowin32_h}
-
-pkgconfigdir = $(libdir)/pkgconfig
-pkgconfig_DATA = minizip.pc
-
-EXTRA_PROGRAMS = miniunzip minizip
-
-miniunzip_SOURCES = miniunz.c
-miniunzip_LDADD = libminizip.la
-
-minizip_SOURCES = minizip.c
-minizip_LDADD = libminizip.la -lz
+++ /dev/null
-
-MiniZip 1.1 was derrived from MiniZip at version 1.01f
-
-Change in 1.0 (Okt 2009)
- - **TODO - Add history**
-
+++ /dev/null
-MiniZip - Copyright (c) 1998-2010 - by Gilles Vollant - version 1.1 64 bits from Mathias Svensson
-
-Introduction
----------------------
-MiniZip 1.1 is built from MiniZip 1.0 by Gilles Vollant ( http://www.winimage.com/zLibDll/minizip.html )
-
-When adding ZIP64 support into minizip it would result into risk of breaking compatibility with minizip 1.0.
-All possible work was done for compatibility.
-
-
-Background
----------------------
-When adding ZIP64 support Mathias Svensson found that Even Rouault have added ZIP64
-support for unzip.c into minizip for a open source project called gdal ( http://www.gdal.org/ )
-
-That was used as a starting point. And after that ZIP64 support was added to zip.c
-some refactoring and code cleanup was also done.
-
-
-Changed from MiniZip 1.0 to MiniZip 1.1
----------------------------------------
-* Added ZIP64 support for unzip ( by Even Rouault )
-* Added ZIP64 support for zip ( by Mathias Svensson )
-* Reverted some changed that Even Rouault did.
-* Bunch of patches received from Gulles Vollant that he received for MiniZip from various users.
-* Added unzip patch for BZIP Compression method (patch create by Daniel Borca)
-* Added BZIP Compress method for zip
-* Did some refactoring and code cleanup
-
-
-Credits
-
- Gilles Vollant - Original MiniZip author
- Even Rouault - ZIP64 unzip Support
- Daniel Borca - BZip Compression method support in unzip
- Mathias Svensson - ZIP64 zip support
- Mathias Svensson - BZip Compression method support in zip
-
- Resources
-
- ZipLayout http://result42.com/projects/ZipFileLayout
- Command line tool for Windows that shows the layout and information of the headers in a zip archive.
- Used when debugging and validating the creation of zip files using MiniZip64
-
-
- ZIP App Note http://www.pkware.com/documents/casestudies/APPNOTE.TXT
- Zip File specification
-
-
-Notes.
- * To be able to use BZip compression method in zip64.c or unzip64.c the BZIP2 lib is needed and HAVE_BZIP2 need to be defined.
-
-License
-----------------------------------------------------------
- Condition of use and distribution are the same than zlib :
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
-----------------------------------------------------------
-
+++ /dev/null
-# -*- Autoconf -*-
-# Process this file with autoconf to produce a configure script.
-
-AC_INIT([minizip], [1.2.8], [bugzilla.redhat.com])
-AC_CONFIG_SRCDIR([minizip.c])
-AM_INIT_AUTOMAKE([foreign])
-LT_INIT
-
-AC_MSG_CHECKING([whether to build example programs])
-AC_ARG_ENABLE([demos], AC_HELP_STRING([--enable-demos], [build example programs]))
-AM_CONDITIONAL([COND_DEMOS], [test "$enable_demos" = yes])
-if test "$enable_demos" = yes
-then
- AC_MSG_RESULT([yes])
-else
- AC_MSG_RESULT([no])
-fi
-
-case "${host}" in
- *-mingw* | mingw*)
- WIN32="yes"
- ;;
- *)
- ;;
-esac
-AM_CONDITIONAL([WIN32], [test "${WIN32}" = "yes"])
-
-
-AC_SUBST([HAVE_UNISTD_H], [0])
-AC_CHECK_HEADER([unistd.h], [HAVE_UNISTD_H=1], [])
-AC_CONFIG_FILES([Makefile minizip.pc])
-AC_OUTPUT
+++ /dev/null
-/* crypt.h -- base code for crypt/uncrypt ZIPfile
-
-
- Version 1.01e, February 12th, 2005
-
- Copyright (C) 1998-2005 Gilles Vollant
-
- This code is a modified version of crypting code in Infozip distribution
-
- The encryption/decryption parts of this source code (as opposed to the
- non-echoing password parts) were originally written in Europe. The
- whole source package can be freely distributed, including from the USA.
- (Prior to January 2000, re-export from the US was a violation of US law.)
-
- This encryption code is a direct transcription of the algorithm from
- Roger Schlafly, described by Phil Katz in the file appnote.txt. This
- file (appnote.txt) is distributed with the PKZIP program (even in the
- version without encryption capabilities).
-
- If you don't need crypting in your application, just define symbols
- NOCRYPT and NOUNCRYPT.
-
- This code support the "Traditional PKWARE Encryption".
-
- The new AES encryption added on Zip format by Winzip (see the page
- http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong
- Encryption is not supported.
-*/
-
-#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
-
-/***********************************************************************
- * Return the next byte in the pseudo-random sequence
- */
-static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
-{
- unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an
- * unpredictable manner on 16-bit systems; not a problem
- * with any known compiler so far, though */
-
- temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
- return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
-}
-
-/***********************************************************************
- * Update the encryption keys with the next byte of plain text
- */
-static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
-{
- (*(pkeys+0)) = CRC32((*(pkeys+0)), c);
- (*(pkeys+1)) += (*(pkeys+0)) & 0xff;
- (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
- {
- register int keyshift = (int)((*(pkeys+1)) >> 24);
- (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift);
- }
- return c;
-}
-
-
-/***********************************************************************
- * Initialize the encryption keys and the random header according to
- * the given password.
- */
-static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcrc_32_tab)
-{
- *(pkeys+0) = 305419896L;
- *(pkeys+1) = 591751049L;
- *(pkeys+2) = 878082192L;
- while (*passwd != '\0') {
- update_keys(pkeys,pcrc_32_tab,(int)*passwd);
- passwd++;
- }
-}
-
-#define zdecode(pkeys,pcrc_32_tab,c) \
- (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))
-
-#define zencode(pkeys,pcrc_32_tab,c,t) \
- (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))
-
-#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED
-
-#define RAND_HEAD_LEN 12
- /* "last resort" source for second part of crypt seed pattern */
-# ifndef ZCR_SEED2
-# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
-# endif
-
-static int crypthead(const char* passwd, /* password string */
- unsigned char* buf, /* where to write header */
- int bufSize,
- unsigned long* pkeys,
- const z_crc_t* pcrc_32_tab,
- unsigned long crcForCrypting)
-{
- int n; /* index in random header */
- int t; /* temporary */
- int c; /* random byte */
- unsigned char header[RAND_HEAD_LEN-2]; /* random header */
- static unsigned calls = 0; /* ensure different random header each time */
-
- if (bufSize<RAND_HEAD_LEN)
- return 0;
-
- /* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the
- * output of rand() to get less predictability, since rand() is
- * often poorly implemented.
- */
- if (++calls == 1)
- {
- srand((unsigned)(time(NULL) ^ ZCR_SEED2));
- }
- init_keys(passwd, pkeys, pcrc_32_tab);
- for (n = 0; n < RAND_HEAD_LEN-2; n++)
- {
- c = (rand() >> 7) & 0xff;
- header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t);
- }
- /* Encrypt random header (last two bytes is high word of crc) */
- init_keys(passwd, pkeys, pcrc_32_tab);
- for (n = 0; n < RAND_HEAD_LEN-2; n++)
- {
- buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
- }
- buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
- buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
- return n;
-}
-
-#endif
+++ /dev/null
-/* ioapi.h -- IO base function header for compress/uncompress .zip
- part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications for Zip64 support
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-
- For more info read MiniZip_info.txt
-
-*/
-
-#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
- #define _CRT_SECURE_NO_WARNINGS
-#endif
-
-#if defined(__APPLE__) || defined(IOAPI_NO_64)
-// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
-#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
-#define FTELLO_FUNC(stream) ftello(stream)
-#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
-#else
-#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
-#define FTELLO_FUNC(stream) ftello64(stream)
-#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
-#endif
-
-
-#include "ioapi.h"
-
-voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
-{
- if (pfilefunc->zfile_func64.zopen64_file != NULL)
- return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
- else
- {
- return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
- }
-}
-
-long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
-{
- if (pfilefunc->zfile_func64.zseek64_file != NULL)
- return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
- else
- {
- uLong offsetTruncated = (uLong)offset;
- if (offsetTruncated != offset)
- return -1;
- else
- return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
- }
-}
-
-ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
-{
- if (pfilefunc->zfile_func64.zseek64_file != NULL)
- return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
- else
- {
- uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
- if ((tell_uLong) == MAXU32)
- return (ZPOS64_T)-1;
- else
- return tell_uLong;
- }
-}
-
-void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
-{
- p_filefunc64_32->zfile_func64.zopen64_file = NULL;
- p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
- p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
- p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
- p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
- p_filefunc64_32->zfile_func64.ztell64_file = NULL;
- p_filefunc64_32->zfile_func64.zseek64_file = NULL;
- p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
- p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
- p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
- p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
- p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
-}
-
-
-
-static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
-static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
-static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
-static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
-static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
-static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
-static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
-
-static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
-{
- FILE* file = NULL;
- const char* mode_fopen = NULL;
- if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
- mode_fopen = "rb";
- else
- if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
- mode_fopen = "r+b";
- else
- if (mode & ZLIB_FILEFUNC_MODE_CREATE)
- mode_fopen = "wb";
-
- if ((filename!=NULL) && (mode_fopen != NULL))
- file = fopen(filename, mode_fopen);
- return file;
-}
-
-static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
-{
- FILE* file = NULL;
- const char* mode_fopen = NULL;
- if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
- mode_fopen = "rb";
- else
- if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
- mode_fopen = "r+b";
- else
- if (mode & ZLIB_FILEFUNC_MODE_CREATE)
- mode_fopen = "wb";
-
- if ((filename!=NULL) && (mode_fopen != NULL))
- file = FOPEN_FUNC((const char*)filename, mode_fopen);
- return file;
-}
-
-
-static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
-{
- uLong ret;
- ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
- return ret;
-}
-
-static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
-{
- uLong ret;
- ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
- return ret;
-}
-
-static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
-{
- long ret;
- ret = ftell((FILE *)stream);
- return ret;
-}
-
-
-static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
-{
- ZPOS64_T ret;
- ret = FTELLO_FUNC((FILE *)stream);
- return ret;
-}
-
-static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
-{
- int fseek_origin=0;
- long ret;
- switch (origin)
- {
- case ZLIB_FILEFUNC_SEEK_CUR :
- fseek_origin = SEEK_CUR;
- break;
- case ZLIB_FILEFUNC_SEEK_END :
- fseek_origin = SEEK_END;
- break;
- case ZLIB_FILEFUNC_SEEK_SET :
- fseek_origin = SEEK_SET;
- break;
- default: return -1;
- }
- ret = 0;
- if (fseek((FILE *)stream, offset, fseek_origin) != 0)
- ret = -1;
- return ret;
-}
-
-static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
-{
- int fseek_origin=0;
- long ret;
- switch (origin)
- {
- case ZLIB_FILEFUNC_SEEK_CUR :
- fseek_origin = SEEK_CUR;
- break;
- case ZLIB_FILEFUNC_SEEK_END :
- fseek_origin = SEEK_END;
- break;
- case ZLIB_FILEFUNC_SEEK_SET :
- fseek_origin = SEEK_SET;
- break;
- default: return -1;
- }
- ret = 0;
-
- if(FSEEKO_FUNC((FILE *)stream, offset, fseek_origin) != 0)
- ret = -1;
-
- return ret;
-}
-
-
-static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
-{
- int ret;
- ret = fclose((FILE *)stream);
- return ret;
-}
-
-static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
-{
- int ret;
- ret = ferror((FILE *)stream);
- return ret;
-}
-
-void fill_fopen_filefunc (pzlib_filefunc_def)
- zlib_filefunc_def* pzlib_filefunc_def;
-{
- pzlib_filefunc_def->zopen_file = fopen_file_func;
- pzlib_filefunc_def->zread_file = fread_file_func;
- pzlib_filefunc_def->zwrite_file = fwrite_file_func;
- pzlib_filefunc_def->ztell_file = ftell_file_func;
- pzlib_filefunc_def->zseek_file = fseek_file_func;
- pzlib_filefunc_def->zclose_file = fclose_file_func;
- pzlib_filefunc_def->zerror_file = ferror_file_func;
- pzlib_filefunc_def->opaque = NULL;
-}
-
-void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def)
-{
- pzlib_filefunc_def->zopen64_file = fopen64_file_func;
- pzlib_filefunc_def->zread_file = fread_file_func;
- pzlib_filefunc_def->zwrite_file = fwrite_file_func;
- pzlib_filefunc_def->ztell64_file = ftell64_file_func;
- pzlib_filefunc_def->zseek64_file = fseek64_file_func;
- pzlib_filefunc_def->zclose_file = fclose_file_func;
- pzlib_filefunc_def->zerror_file = ferror_file_func;
- pzlib_filefunc_def->opaque = NULL;
-}
+++ /dev/null
-/* ioapi.h -- IO base function header for compress/uncompress .zip
- part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications for Zip64 support
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-
- For more info read MiniZip_info.txt
-
- Changes
-
- Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this)
- Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux.
- More if/def section may be needed to support other platforms
- Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows.
- (but you should use iowin32.c for windows instead)
-
-*/
-
-#ifndef _ZLIBIOAPI64_H
-#define _ZLIBIOAPI64_H
-
-#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
-
- // Linux needs this to support file operation on files larger then 4+GB
- // But might need better if/def to select just the platforms that needs them.
-
- #ifndef __USE_FILE_OFFSET64
- #define __USE_FILE_OFFSET64
- #endif
- #ifndef __USE_LARGEFILE64
- #define __USE_LARGEFILE64
- #endif
- #ifndef _LARGEFILE64_SOURCE
- #define _LARGEFILE64_SOURCE
- #endif
- #ifndef _FILE_OFFSET_BIT
- #define _FILE_OFFSET_BIT 64
- #endif
-
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include "zlib.h"
-
-#if defined(USE_FILE32API)
-#define fopen64 fopen
-#define ftello64 ftell
-#define fseeko64 fseek
-#else
-#ifdef __FreeBSD__
-#define fopen64 fopen
-#define ftello64 ftello
-#define fseeko64 fseeko
-#endif
-#ifdef _MSC_VER
- #define fopen64 fopen
- #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
- #define ftello64 _ftelli64
- #define fseeko64 _fseeki64
- #else // old MSC
- #define ftello64 ftell
- #define fseeko64 fseek
- #endif
-#endif
-#endif
-
-/*
-#ifndef ZPOS64_T
- #ifdef _WIN32
- #define ZPOS64_T fpos_t
- #else
- #include <stdint.h>
- #define ZPOS64_T uint64_t
- #endif
-#endif
-*/
-
-#ifdef HAVE_MINIZIP64_CONF_H
-#include "mz64conf.h"
-#endif
-
-/* a type choosen by DEFINE */
-#ifdef HAVE_64BIT_INT_CUSTOM
-typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T;
-#else
-#ifdef HAS_STDINT_H
-#include "stdint.h"
-typedef uint64_t ZPOS64_T;
-#else
-
-/* Maximum unsigned 32-bit value used as placeholder for zip64 */
-#define MAXU32 0xffffffff
-
-#if defined(_MSC_VER) || defined(__BORLANDC__)
-typedef unsigned __int64 ZPOS64_T;
-#else
-typedef unsigned long long int ZPOS64_T;
-#endif
-#endif
-#endif
-
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-#define ZLIB_FILEFUNC_SEEK_CUR (1)
-#define ZLIB_FILEFUNC_SEEK_END (2)
-#define ZLIB_FILEFUNC_SEEK_SET (0)
-
-#define ZLIB_FILEFUNC_MODE_READ (1)
-#define ZLIB_FILEFUNC_MODE_WRITE (2)
-#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
-
-#define ZLIB_FILEFUNC_MODE_EXISTING (4)
-#define ZLIB_FILEFUNC_MODE_CREATE (8)
-
-
-#ifndef ZCALLBACK
- #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
- #define ZCALLBACK CALLBACK
- #else
- #define ZCALLBACK
- #endif
-#endif
-
-
-
-
-typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
-typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
-typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
-typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
-typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
-
-typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
-typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
-
-
-/* here is the "old" 32 bits structure structure */
-typedef struct zlib_filefunc_def_s
-{
- open_file_func zopen_file;
- read_file_func zread_file;
- write_file_func zwrite_file;
- tell_file_func ztell_file;
- seek_file_func zseek_file;
- close_file_func zclose_file;
- testerror_file_func zerror_file;
- voidpf opaque;
-} zlib_filefunc_def;
-
-typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream));
-typedef long (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
-typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, const void* filename, int mode));
-
-typedef struct zlib_filefunc64_def_s
-{
- open64_file_func zopen64_file;
- read_file_func zread_file;
- write_file_func zwrite_file;
- tell64_file_func ztell64_file;
- seek64_file_func zseek64_file;
- close_file_func zclose_file;
- testerror_file_func zerror_file;
- voidpf opaque;
-} zlib_filefunc64_def;
-
-void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
-void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
-
-/* now internal definition, only for zip.c and unzip.h */
-typedef struct zlib_filefunc64_32_def_s
-{
- zlib_filefunc64_def zfile_func64;
- open_file_func zopen32_file;
- tell_file_func ztell32_file;
- seek_file_func zseek32_file;
-} zlib_filefunc64_32_def;
-
-
-#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))
-#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))
-//#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
-//#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
-#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream))
-#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream))
-
-voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
-long call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
-ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
-
-void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
-
-#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode)))
-#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream)))
-#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/* iowin32.c -- IO base function header for compress/uncompress .zip
- Version 1.1, February 14h, 2010
- part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications for Zip64 support
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-
- For more info read MiniZip_info.txt
-
-*/
-
-#include <stdlib.h>
-
-#include "zlib.h"
-#include "ioapi.h"
-#include "iowin32.h"
-
-#ifndef INVALID_HANDLE_VALUE
-#define INVALID_HANDLE_VALUE (0xFFFFFFFF)
-#endif
-
-#ifndef INVALID_SET_FILE_POINTER
-#define INVALID_SET_FILE_POINTER ((DWORD)-1)
-#endif
-
-
-#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
-#define IOWIN32_USING_WINRT_API 1
-#endif
-#endif
-
-voidpf ZCALLBACK win32_open_file_func OF((voidpf opaque, const char* filename, int mode));
-uLong ZCALLBACK win32_read_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
-uLong ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
-ZPOS64_T ZCALLBACK win32_tell64_file_func OF((voidpf opaque, voidpf stream));
-long ZCALLBACK win32_seek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
-int ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream));
-int ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream));
-
-typedef struct
-{
- HANDLE hf;
- int error;
-} WIN32FILE_IOWIN;
-
-
-static void win32_translate_open_mode(int mode,
- DWORD* lpdwDesiredAccess,
- DWORD* lpdwCreationDisposition,
- DWORD* lpdwShareMode,
- DWORD* lpdwFlagsAndAttributes)
-{
- *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;
-
- if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
- {
- *lpdwDesiredAccess = GENERIC_READ;
- *lpdwCreationDisposition = OPEN_EXISTING;
- *lpdwShareMode = FILE_SHARE_READ;
- }
- else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
- {
- *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
- *lpdwCreationDisposition = OPEN_EXISTING;
- }
- else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
- {
- *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
- *lpdwCreationDisposition = CREATE_ALWAYS;
- }
-}
-
-static voidpf win32_build_iowin(HANDLE hFile)
-{
- voidpf ret=NULL;
-
- if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
- {
- WIN32FILE_IOWIN w32fiow;
- w32fiow.hf = hFile;
- w32fiow.error = 0;
- ret = malloc(sizeof(WIN32FILE_IOWIN));
-
- if (ret==NULL)
- CloseHandle(hFile);
- else
- *((WIN32FILE_IOWIN*)ret) = w32fiow;
- }
- return ret;
-}
-
-voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode)
-{
- const char* mode_fopen = NULL;
- DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
- HANDLE hFile = NULL;
-
- win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
-
-#ifdef IOWIN32_USING_WINRT_API
-#ifdef UNICODE
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
-#else
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- {
- WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
- MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
- hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
- }
-#endif
-#else
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
-#endif
-
- return win32_build_iowin(hFile);
-}
-
-
-voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode)
-{
- const char* mode_fopen = NULL;
- DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
- HANDLE hFile = NULL;
-
- win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
-
-#ifdef IOWIN32_USING_WINRT_API
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- {
- WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
- MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
- hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
- }
-#else
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
-#endif
-
- return win32_build_iowin(hFile);
-}
-
-
-voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int mode)
-{
- const char* mode_fopen = NULL;
- DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
- HANDLE hFile = NULL;
-
- win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
-
-#ifdef IOWIN32_USING_WINRT_API
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition,NULL);
-#else
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
-#endif
-
- return win32_build_iowin(hFile);
-}
-
-
-voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode)
-{
- const char* mode_fopen = NULL;
- DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
- HANDLE hFile = NULL;
-
- win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
-
-#ifdef IOWIN32_USING_WINRT_API
-#ifdef UNICODE
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
-#else
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- {
- WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
- MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
- hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
- }
-#endif
-#else
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
-#endif
-
- return win32_build_iowin(hFile);
-}
-
-
-uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size)
-{
- uLong ret=0;
- HANDLE hFile = NULL;
- if (stream!=NULL)
- hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
-
- if (hFile != NULL)
- {
- if (!ReadFile(hFile, buf, size, &ret, NULL))
- {
- DWORD dwErr = GetLastError();
- if (dwErr == ERROR_HANDLE_EOF)
- dwErr = 0;
- ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
- }
- }
-
- return ret;
-}
-
-
-uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size)
-{
- uLong ret=0;
- HANDLE hFile = NULL;
- if (stream!=NULL)
- hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
-
- if (hFile != NULL)
- {
- if (!WriteFile(hFile, buf, size, &ret, NULL))
- {
- DWORD dwErr = GetLastError();
- if (dwErr == ERROR_HANDLE_EOF)
- dwErr = 0;
- ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
- }
- }
-
- return ret;
-}
-
-static BOOL MySetFilePointerEx(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos, DWORD dwMoveMethod)
-{
-#ifdef IOWIN32_USING_WINRT_API
- return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod);
-#else
- LONG lHigh = pos.HighPart;
- DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, FILE_CURRENT);
- BOOL fOk = TRUE;
- if (dwNewPos == 0xFFFFFFFF)
- if (GetLastError() != NO_ERROR)
- fOk = FALSE;
- if ((newPos != NULL) && (fOk))
- {
- newPos->LowPart = dwNewPos;
- newPos->HighPart = lHigh;
- }
- return fOk;
-#endif
-}
-
-long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream)
-{
- long ret=-1;
- HANDLE hFile = NULL;
- if (stream!=NULL)
- hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
- if (hFile != NULL)
- {
- LARGE_INTEGER pos;
- pos.QuadPart = 0;
-
- if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
- {
- DWORD dwErr = GetLastError();
- ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
- ret = -1;
- }
- else
- ret=(long)pos.LowPart;
- }
- return ret;
-}
-
-ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream)
-{
- ZPOS64_T ret= (ZPOS64_T)-1;
- HANDLE hFile = NULL;
- if (stream!=NULL)
- hFile = ((WIN32FILE_IOWIN*)stream)->hf;
-
- if (hFile)
- {
- LARGE_INTEGER pos;
- pos.QuadPart = 0;
-
- if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
- {
- DWORD dwErr = GetLastError();
- ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
- ret = (ZPOS64_T)-1;
- }
- else
- ret=pos.QuadPart;
- }
- return ret;
-}
-
-
-long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin)
-{
- DWORD dwMoveMethod=0xFFFFFFFF;
- HANDLE hFile = NULL;
-
- long ret=-1;
- if (stream!=NULL)
- hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
- switch (origin)
- {
- case ZLIB_FILEFUNC_SEEK_CUR :
- dwMoveMethod = FILE_CURRENT;
- break;
- case ZLIB_FILEFUNC_SEEK_END :
- dwMoveMethod = FILE_END;
- break;
- case ZLIB_FILEFUNC_SEEK_SET :
- dwMoveMethod = FILE_BEGIN;
- break;
- default: return -1;
- }
-
- if (hFile != NULL)
- {
- LARGE_INTEGER pos;
- pos.QuadPart = offset;
- if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
- {
- DWORD dwErr = GetLastError();
- ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
- ret = -1;
- }
- else
- ret=0;
- }
- return ret;
-}
-
-long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin)
-{
- DWORD dwMoveMethod=0xFFFFFFFF;
- HANDLE hFile = NULL;
- long ret=-1;
-
- if (stream!=NULL)
- hFile = ((WIN32FILE_IOWIN*)stream)->hf;
-
- switch (origin)
- {
- case ZLIB_FILEFUNC_SEEK_CUR :
- dwMoveMethod = FILE_CURRENT;
- break;
- case ZLIB_FILEFUNC_SEEK_END :
- dwMoveMethod = FILE_END;
- break;
- case ZLIB_FILEFUNC_SEEK_SET :
- dwMoveMethod = FILE_BEGIN;
- break;
- default: return -1;
- }
-
- if (hFile)
- {
- LARGE_INTEGER pos;
- pos.QuadPart = offset;
- if (!MySetFilePointerEx(hFile, pos, NULL, FILE_CURRENT))
- {
- DWORD dwErr = GetLastError();
- ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
- ret = -1;
- }
- else
- ret=0;
- }
- return ret;
-}
-
-int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream)
-{
- int ret=-1;
-
- if (stream!=NULL)
- {
- HANDLE hFile;
- hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
- if (hFile != NULL)
- {
- CloseHandle(hFile);
- ret=0;
- }
- free(stream);
- }
- return ret;
-}
-
-int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream)
-{
- int ret=-1;
- if (stream!=NULL)
- {
- ret = ((WIN32FILE_IOWIN*)stream) -> error;
- }
- return ret;
-}
-
-void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def)
-{
- pzlib_filefunc_def->zopen_file = win32_open_file_func;
- pzlib_filefunc_def->zread_file = win32_read_file_func;
- pzlib_filefunc_def->zwrite_file = win32_write_file_func;
- pzlib_filefunc_def->ztell_file = win32_tell_file_func;
- pzlib_filefunc_def->zseek_file = win32_seek_file_func;
- pzlib_filefunc_def->zclose_file = win32_close_file_func;
- pzlib_filefunc_def->zerror_file = win32_error_file_func;
- pzlib_filefunc_def->opaque = NULL;
-}
-
-void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def)
-{
- pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
- pzlib_filefunc_def->zread_file = win32_read_file_func;
- pzlib_filefunc_def->zwrite_file = win32_write_file_func;
- pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
- pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
- pzlib_filefunc_def->zclose_file = win32_close_file_func;
- pzlib_filefunc_def->zerror_file = win32_error_file_func;
- pzlib_filefunc_def->opaque = NULL;
-}
-
-
-void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def)
-{
- pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
- pzlib_filefunc_def->zread_file = win32_read_file_func;
- pzlib_filefunc_def->zwrite_file = win32_write_file_func;
- pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
- pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
- pzlib_filefunc_def->zclose_file = win32_close_file_func;
- pzlib_filefunc_def->zerror_file = win32_error_file_func;
- pzlib_filefunc_def->opaque = NULL;
-}
-
-
-void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def)
-{
- pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
- pzlib_filefunc_def->zread_file = win32_read_file_func;
- pzlib_filefunc_def->zwrite_file = win32_write_file_func;
- pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
- pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
- pzlib_filefunc_def->zclose_file = win32_close_file_func;
- pzlib_filefunc_def->zerror_file = win32_error_file_func;
- pzlib_filefunc_def->opaque = NULL;
-}
+++ /dev/null
-/* iowin32.h -- IO base function header for compress/uncompress .zip
- Version 1.1, February 14h, 2010
- part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications for Zip64 support
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-
- For more info read MiniZip_info.txt
-
-*/
-
-#include <windows.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void fill_win32_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
-void fill_win32_filefunc64 OF((zlib_filefunc64_def* pzlib_filefunc_def));
-void fill_win32_filefunc64A OF((zlib_filefunc64_def* pzlib_filefunc_def));
-void fill_win32_filefunc64W OF((zlib_filefunc64_def* pzlib_filefunc_def));
-
-#ifdef __cplusplus
-}
-#endif
+++ /dev/null
-/*
- miniunz.c
- Version 1.1, February 14h, 2010
- sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications of Unzip for Zip64
- Copyright (C) 2007-2008 Even Rouault
-
- Modifications for Zip64 support on both zip and unzip
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-*/
-
-#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
- #ifndef __USE_FILE_OFFSET64
- #define __USE_FILE_OFFSET64
- #endif
- #ifndef __USE_LARGEFILE64
- #define __USE_LARGEFILE64
- #endif
- #ifndef _LARGEFILE64_SOURCE
- #define _LARGEFILE64_SOURCE
- #endif
- #ifndef _FILE_OFFSET_BIT
- #define _FILE_OFFSET_BIT 64
- #endif
-#endif
-
-#ifdef __APPLE__
-// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
-#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
-#define FTELLO_FUNC(stream) ftello(stream)
-#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
-#else
-#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
-#define FTELLO_FUNC(stream) ftello64(stream)
-#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
-#endif
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#ifdef _WIN32
-# include <direct.h>
-# include <io.h>
-#else
-# include <unistd.h>
-# include <utime.h>
-#endif
-
-
-#include "unzip.h"
-
-#define CASESENSITIVITY (0)
-#define WRITEBUFFERSIZE (8192)
-#define MAXFILENAME (256)
-
-#ifdef _WIN32
-#define USEWIN32IOAPI
-#include "iowin32.h"
-#endif
-/*
- mini unzip, demo of unzip package
-
- usage :
- Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir]
-
- list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT
- if it exists
-*/
-
-
-/* change_file_date : change the date/time of a file
- filename : the filename of the file where date/time must be modified
- dosdate : the new date at the MSDos format (4 bytes)
- tmu_date : the SAME new date at the tm_unz format */
-void change_file_date(filename,dosdate,tmu_date)
- const char *filename;
- uLong dosdate;
- tm_unz tmu_date;
-{
-#ifdef _WIN32
- HANDLE hFile;
- FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
-
- hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE,
- 0,NULL,OPEN_EXISTING,0,NULL);
- GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite);
- DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal);
- LocalFileTimeToFileTime(&ftLocal,&ftm);
- SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
- CloseHandle(hFile);
-#else
-#ifdef unix || __APPLE__
- struct utimbuf ut;
- struct tm newdate;
- newdate.tm_sec = tmu_date.tm_sec;
- newdate.tm_min=tmu_date.tm_min;
- newdate.tm_hour=tmu_date.tm_hour;
- newdate.tm_mday=tmu_date.tm_mday;
- newdate.tm_mon=tmu_date.tm_mon;
- if (tmu_date.tm_year > 1900)
- newdate.tm_year=tmu_date.tm_year - 1900;
- else
- newdate.tm_year=tmu_date.tm_year ;
- newdate.tm_isdst=-1;
-
- ut.actime=ut.modtime=mktime(&newdate);
- utime(filename,&ut);
-#endif
-#endif
-}
-
-
-/* mymkdir and change_file_date are not 100 % portable
- As I don't know well Unix, I wait feedback for the unix portion */
-
-int mymkdir(dirname)
- const char* dirname;
-{
- int ret=0;
-#ifdef _WIN32
- ret = _mkdir(dirname);
-#elif unix
- ret = mkdir (dirname,0775);
-#elif __APPLE__
- ret = mkdir (dirname,0775);
-#endif
- return ret;
-}
-
-int makedir (newdir)
- char *newdir;
-{
- char *buffer ;
- char *p;
- int len = (int)strlen(newdir);
-
- if (len <= 0)
- return 0;
-
- buffer = (char*)malloc(len+1);
- if (buffer==NULL)
- {
- printf("Error allocating memory\n");
- return UNZ_INTERNALERROR;
- }
- strcpy(buffer,newdir);
-
- if (buffer[len-1] == '/') {
- buffer[len-1] = '\0';
- }
- if (mymkdir(buffer) == 0)
- {
- free(buffer);
- return 1;
- }
-
- p = buffer+1;
- while (1)
- {
- char hold;
-
- while(*p && *p != '\\' && *p != '/')
- p++;
- hold = *p;
- *p = 0;
- if ((mymkdir(buffer) == -1) && (errno == ENOENT))
- {
- printf("couldn't create directory %s\n",buffer);
- free(buffer);
- return 0;
- }
- if (hold == 0)
- break;
- *p++ = hold;
- }
- free(buffer);
- return 1;
-}
-
-void do_banner()
-{
- printf("MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant\n");
- printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
-}
-
-void do_help()
-{
- printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \
- " -e Extract without pathname (junk paths)\n" \
- " -x Extract with pathname\n" \
- " -v list files\n" \
- " -l list files\n" \
- " -d directory to extract into\n" \
- " -o overwrite files without prompting\n" \
- " -p extract crypted file using password\n\n");
-}
-
-void Display64BitsSize(ZPOS64_T n, int size_char)
-{
- /* to avoid compatibility problem , we do here the conversion */
- char number[21];
- int offset=19;
- int pos_string = 19;
- number[20]=0;
- for (;;) {
- number[offset]=(char)((n%10)+'0');
- if (number[offset] != '0')
- pos_string=offset;
- n/=10;
- if (offset==0)
- break;
- offset--;
- }
- {
- int size_display_string = 19-pos_string;
- while (size_char > size_display_string)
- {
- size_char--;
- printf(" ");
- }
- }
-
- printf("%s",&number[pos_string]);
-}
-
-int do_list(uf)
- unzFile uf;
-{
- uLong i;
- unz_global_info64 gi;
- int err;
-
- err = unzGetGlobalInfo64(uf,&gi);
- if (err!=UNZ_OK)
- printf("error %d with zipfile in unzGetGlobalInfo \n",err);
- printf(" Length Method Size Ratio Date Time CRC-32 Name\n");
- printf(" ------ ------ ---- ----- ---- ---- ------ ----\n");
- for (i=0;i<gi.number_entry;i++)
- {
- char filename_inzip[256];
- unz_file_info64 file_info;
- uLong ratio=0;
- const char *string_method;
- char charCrypt=' ';
- err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
- break;
- }
- if (file_info.uncompressed_size>0)
- ratio = (uLong)((file_info.compressed_size*100)/file_info.uncompressed_size);
-
- /* display a '*' if the file is crypted */
- if ((file_info.flag & 1) != 0)
- charCrypt='*';
-
- if (file_info.compression_method==0)
- string_method="Stored";
- else
- if (file_info.compression_method==Z_DEFLATED)
- {
- uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
- if (iLevel==0)
- string_method="Defl:N";
- else if (iLevel==1)
- string_method="Defl:X";
- else if ((iLevel==2) || (iLevel==3))
- string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
- }
- else
- if (file_info.compression_method==Z_BZIP2ED)
- {
- string_method="BZip2 ";
- }
- else
- string_method="Unkn. ";
-
- Display64BitsSize(file_info.uncompressed_size,7);
- printf(" %6s%c",string_method,charCrypt);
- Display64BitsSize(file_info.compressed_size,7);
- printf(" %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n",
- ratio,
- (uLong)file_info.tmu_date.tm_mon + 1,
- (uLong)file_info.tmu_date.tm_mday,
- (uLong)file_info.tmu_date.tm_year % 100,
- (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min,
- (uLong)file_info.crc,filename_inzip);
- if ((i+1)<gi.number_entry)
- {
- err = unzGoToNextFile(uf);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzGoToNextFile\n",err);
- break;
- }
- }
- }
-
- return 0;
-}
-
-
-int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password)
- unzFile uf;
- const int* popt_extract_without_path;
- int* popt_overwrite;
- const char* password;
-{
- char filename_inzip[256];
- char* filename_withoutpath;
- char* p;
- int err=UNZ_OK;
- FILE *fout=NULL;
- void* buf;
- uInt size_buf;
-
- unz_file_info64 file_info;
- uLong ratio=0;
- err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
-
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
- return err;
- }
-
- size_buf = WRITEBUFFERSIZE;
- buf = (void*)malloc(size_buf);
- if (buf==NULL)
- {
- printf("Error allocating memory\n");
- return UNZ_INTERNALERROR;
- }
-
- p = filename_withoutpath = filename_inzip;
- while ((*p) != '\0')
- {
- if (((*p)=='/') || ((*p)=='\\'))
- filename_withoutpath = p+1;
- p++;
- }
-
- if ((*filename_withoutpath)=='\0')
- {
- if ((*popt_extract_without_path)==0)
- {
- printf("creating directory: %s\n",filename_inzip);
- mymkdir(filename_inzip);
- }
- }
- else
- {
- const char* write_filename;
- int skip=0;
-
- if ((*popt_extract_without_path)==0)
- write_filename = filename_inzip;
- else
- write_filename = filename_withoutpath;
-
- err = unzOpenCurrentFilePassword(uf,password);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err);
- }
-
- if (((*popt_overwrite)==0) && (err==UNZ_OK))
- {
- char rep=0;
- FILE* ftestexist;
- ftestexist = FOPEN_FUNC(write_filename,"rb");
- if (ftestexist!=NULL)
- {
- fclose(ftestexist);
- do
- {
- char answer[128];
- int ret;
-
- printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
- ret = scanf("%1s",answer);
- if (ret != 1)
- {
- exit(EXIT_FAILURE);
- }
- rep = answer[0] ;
- if ((rep>='a') && (rep<='z'))
- rep -= 0x20;
- }
- while ((rep!='Y') && (rep!='N') && (rep!='A'));
- }
-
- if (rep == 'N')
- skip = 1;
-
- if (rep == 'A')
- *popt_overwrite=1;
- }
-
- if ((skip==0) && (err==UNZ_OK))
- {
- fout=FOPEN_FUNC(write_filename,"wb");
- /* some zipfile don't contain directory alone before file */
- if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
- (filename_withoutpath!=(char*)filename_inzip))
- {
- char c=*(filename_withoutpath-1);
- *(filename_withoutpath-1)='\0';
- makedir(write_filename);
- *(filename_withoutpath-1)=c;
- fout=FOPEN_FUNC(write_filename,"wb");
- }
-
- if (fout==NULL)
- {
- printf("error opening %s\n",write_filename);
- }
- }
-
- if (fout!=NULL)
- {
- printf(" extracting: %s\n",write_filename);
-
- do
- {
- err = unzReadCurrentFile(uf,buf,size_buf);
- if (err<0)
- {
- printf("error %d with zipfile in unzReadCurrentFile\n",err);
- break;
- }
- if (err>0)
- if (fwrite(buf,err,1,fout)!=1)
- {
- printf("error in writing extracted file\n");
- err=UNZ_ERRNO;
- break;
- }
- }
- while (err>0);
- if (fout)
- fclose(fout);
-
- if (err==0)
- change_file_date(write_filename,file_info.dosDate,
- file_info.tmu_date);
- }
-
- if (err==UNZ_OK)
- {
- err = unzCloseCurrentFile (uf);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzCloseCurrentFile\n",err);
- }
- }
- else
- unzCloseCurrentFile(uf); /* don't lose the error */
- }
-
- free(buf);
- return err;
-}
-
-
-int do_extract(uf,opt_extract_without_path,opt_overwrite,password)
- unzFile uf;
- int opt_extract_without_path;
- int opt_overwrite;
- const char* password;
-{
- uLong i;
- unz_global_info64 gi;
- int err;
- FILE* fout=NULL;
-
- err = unzGetGlobalInfo64(uf,&gi);
- if (err!=UNZ_OK)
- printf("error %d with zipfile in unzGetGlobalInfo \n",err);
-
- for (i=0;i<gi.number_entry;i++)
- {
- if (do_extract_currentfile(uf,&opt_extract_without_path,
- &opt_overwrite,
- password) != UNZ_OK)
- break;
-
- if ((i+1)<gi.number_entry)
- {
- err = unzGoToNextFile(uf);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzGoToNextFile\n",err);
- break;
- }
- }
- }
-
- return 0;
-}
-
-int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,password)
- unzFile uf;
- const char* filename;
- int opt_extract_without_path;
- int opt_overwrite;
- const char* password;
-{
- int err = UNZ_OK;
- if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK)
- {
- printf("file %s not found in the zipfile\n",filename);
- return 2;
- }
-
- if (do_extract_currentfile(uf,&opt_extract_without_path,
- &opt_overwrite,
- password) == UNZ_OK)
- return 0;
- else
- return 1;
-}
-
-
-int main(argc,argv)
- int argc;
- char *argv[];
-{
- const char *zipfilename=NULL;
- const char *filename_to_extract=NULL;
- const char *password=NULL;
- char filename_try[MAXFILENAME+16] = "";
- int i;
- int ret_value=0;
- int opt_do_list=0;
- int opt_do_extract=1;
- int opt_do_extract_withoutpath=0;
- int opt_overwrite=0;
- int opt_extractdir=0;
- const char *dirname=NULL;
- unzFile uf=NULL;
-
- do_banner();
- if (argc==1)
- {
- do_help();
- return 0;
- }
- else
- {
- for (i=1;i<argc;i++)
- {
- if ((*argv[i])=='-')
- {
- const char *p=argv[i]+1;
-
- while ((*p)!='\0')
- {
- char c=*(p++);;
- if ((c=='l') || (c=='L'))
- opt_do_list = 1;
- if ((c=='v') || (c=='V'))
- opt_do_list = 1;
- if ((c=='x') || (c=='X'))
- opt_do_extract = 1;
- if ((c=='e') || (c=='E'))
- opt_do_extract = opt_do_extract_withoutpath = 1;
- if ((c=='o') || (c=='O'))
- opt_overwrite=1;
- if ((c=='d') || (c=='D'))
- {
- opt_extractdir=1;
- dirname=argv[i+1];
- }
-
- if (((c=='p') || (c=='P')) && (i+1<argc))
- {
- password=argv[i+1];
- i++;
- }
- }
- }
- else
- {
- if (zipfilename == NULL)
- zipfilename = argv[i];
- else if ((filename_to_extract==NULL) && (!opt_extractdir))
- filename_to_extract = argv[i] ;
- }
- }
- }
-
- if (zipfilename!=NULL)
- {
-
-# ifdef USEWIN32IOAPI
- zlib_filefunc64_def ffunc;
-# endif
-
- strncpy(filename_try, zipfilename,MAXFILENAME-1);
- /* strncpy doesnt append the trailing NULL, of the string is too long. */
- filename_try[ MAXFILENAME ] = '\0';
-
-# ifdef USEWIN32IOAPI
- fill_win32_filefunc64A(&ffunc);
- uf = unzOpen2_64(zipfilename,&ffunc);
-# else
- uf = unzOpen64(zipfilename);
-# endif
- if (uf==NULL)
- {
- strcat(filename_try,".zip");
-# ifdef USEWIN32IOAPI
- uf = unzOpen2_64(filename_try,&ffunc);
-# else
- uf = unzOpen64(filename_try);
-# endif
- }
- }
-
- if (uf==NULL)
- {
- printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
- return 1;
- }
- printf("%s opened\n",filename_try);
-
- if (opt_do_list==1)
- ret_value = do_list(uf);
- else if (opt_do_extract==1)
- {
-#ifdef _WIN32
- if (opt_extractdir && _chdir(dirname))
-#else
- if (opt_extractdir && chdir(dirname))
-#endif
- {
- printf("Error changing into %s, aborting\n", dirname);
- exit(-1);
- }
-
- if (filename_to_extract == NULL)
- ret_value = do_extract(uf, opt_do_extract_withoutpath, opt_overwrite, password);
- else
- ret_value = do_extract_onefile(uf, filename_to_extract, opt_do_extract_withoutpath, opt_overwrite, password);
- }
-
- unzClose(uf);
-
- return ret_value;
-}
+++ /dev/null
-.\" Hey, EMACS: -*- nroff -*-
-.TH miniunzip 1 "Nov 7, 2001"
-.\" Please adjust this date whenever revising the manpage.
-.\"
-.\" Some roff macros, for reference:
-.\" .nh disable hyphenation
-.\" .hy enable hyphenation
-.\" .ad l left justify
-.\" .ad b justify to both left and right margins
-.\" .nf disable filling
-.\" .fi enable filling
-.\" .br insert line break
-.\" .sp <n> insert n+1 empty lines
-.\" for manpage-specific macros, see man(7)
-.SH NAME
-miniunzip - uncompress and examine ZIP archives
-.SH SYNOPSIS
-.B miniunzip
-.RI [ -exvlo ]
-zipfile [ files_to_extract ] [-d tempdir]
-.SH DESCRIPTION
-.B minizip
-is a simple tool which allows the extraction of compressed file
-archives in the ZIP format used by the MS-DOS utility PKZIP. It was
-written as a demonstration of the
-.IR zlib (3)
-library and therefore lack many of the features of the
-.IR unzip (1)
-program.
-.SH OPTIONS
-A number of options are supported. With the exception of
-.BI \-d\ tempdir
-these must be supplied before any
-other arguments and are:
-.TP
-.BI \-l\ ,\ \-\-v
-List the files in the archive without extracting them.
-.TP
-.B \-o
-Overwrite files without prompting for confirmation.
-.TP
-.B \-x
-Extract files (default).
-.PP
-The
-.I zipfile
-argument is the name of the archive to process. The next argument can be used
-to specify a single file to extract from the archive.
-
-Lastly, the following option can be specified at the end of the command-line:
-.TP
-.BI \-d\ tempdir
-Extract the archive in the directory
-.I tempdir
-rather than the current directory.
-.SH SEE ALSO
-.BR minizip (1),
-.BR zlib (3),
-.BR unzip (1).
-.SH AUTHOR
-This program was written by Gilles Vollant. This manual page was
-written by Mark Brown <broonie@sirena.org.uk>. The -d tempdir option
-was added by Dirk Eddelbuettel <edd@debian.org>.
+++ /dev/null
-.\" Hey, EMACS: -*- nroff -*-
-.TH minizip 1 "May 2, 2001"
-.\" Please adjust this date whenever revising the manpage.
-.\"
-.\" Some roff macros, for reference:
-.\" .nh disable hyphenation
-.\" .hy enable hyphenation
-.\" .ad l left justify
-.\" .ad b justify to both left and right margins
-.\" .nf disable filling
-.\" .fi enable filling
-.\" .br insert line break
-.\" .sp <n> insert n+1 empty lines
-.\" for manpage-specific macros, see man(7)
-.SH NAME
-minizip - create ZIP archives
-.SH SYNOPSIS
-.B minizip
-.RI [ -o ]
-zipfile [ " files" ... ]
-.SH DESCRIPTION
-.B minizip
-is a simple tool which allows the creation of compressed file archives
-in the ZIP format used by the MS-DOS utility PKZIP. It was written as
-a demonstration of the
-.IR zlib (3)
-library and therefore lack many of the features of the
-.IR zip (1)
-program.
-.SH OPTIONS
-The first argument supplied is the name of the ZIP archive to create or
-.RI -o
-in which case it is ignored and the second argument treated as the
-name of the ZIP file. If the ZIP file already exists it will be
-overwritten.
-.PP
-Subsequent arguments specify a list of files to place in the ZIP
-archive. If none are specified then an empty archive will be created.
-.SH SEE ALSO
-.BR miniunzip (1),
-.BR zlib (3),
-.BR zip (1).
-.SH AUTHOR
-This program was written by Gilles Vollant. This manual page was
-written by Mark Brown <broonie@sirena.org.uk>.
-
+++ /dev/null
-/*
- minizip.c
- Version 1.1, February 14h, 2010
- sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications of Unzip for Zip64
- Copyright (C) 2007-2008 Even Rouault
-
- Modifications for Zip64 support on both zip and unzip
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-*/
-
-
-#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
- #ifndef __USE_FILE_OFFSET64
- #define __USE_FILE_OFFSET64
- #endif
- #ifndef __USE_LARGEFILE64
- #define __USE_LARGEFILE64
- #endif
- #ifndef _LARGEFILE64_SOURCE
- #define _LARGEFILE64_SOURCE
- #endif
- #ifndef _FILE_OFFSET_BIT
- #define _FILE_OFFSET_BIT 64
- #endif
-#endif
-
-#ifdef __APPLE__
-// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
-#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
-#define FTELLO_FUNC(stream) ftello(stream)
-#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
-#else
-#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
-#define FTELLO_FUNC(stream) ftello64(stream)
-#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
-#endif
-
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#ifdef _WIN32
-# include <direct.h>
-# include <io.h>
-#else
-# include <unistd.h>
-# include <utime.h>
-# include <sys/types.h>
-# include <sys/stat.h>
-#endif
-
-#include "zip.h"
-
-#ifdef _WIN32
- #define USEWIN32IOAPI
- #include "iowin32.h"
-#endif
-
-
-
-#define WRITEBUFFERSIZE (16384)
-#define MAXFILENAME (256)
-
-#ifdef _WIN32
-uLong filetime(f, tmzip, dt)
- char *f; /* name of file to get info on */
- tm_zip *tmzip; /* return value: access, modific. and creation times */
- uLong *dt; /* dostime */
-{
- int ret = 0;
- {
- FILETIME ftLocal;
- HANDLE hFind;
- WIN32_FIND_DATAA ff32;
-
- hFind = FindFirstFileA(f,&ff32);
- if (hFind != INVALID_HANDLE_VALUE)
- {
- FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
- FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0);
- FindClose(hFind);
- ret = 1;
- }
- }
- return ret;
-}
-#else
-#ifdef unix || __APPLE__
-uLong filetime(f, tmzip, dt)
- char *f; /* name of file to get info on */
- tm_zip *tmzip; /* return value: access, modific. and creation times */
- uLong *dt; /* dostime */
-{
- int ret=0;
- struct stat s; /* results of stat() */
- struct tm* filedate;
- time_t tm_t=0;
-
- if (strcmp(f,"-")!=0)
- {
- char name[MAXFILENAME+1];
- int len = strlen(f);
- if (len > MAXFILENAME)
- len = MAXFILENAME;
-
- strncpy(name, f,MAXFILENAME-1);
- /* strncpy doesnt append the trailing NULL, of the string is too long. */
- name[ MAXFILENAME ] = '\0';
-
- if (name[len - 1] == '/')
- name[len - 1] = '\0';
- /* not all systems allow stat'ing a file with / appended */
- if (stat(name,&s)==0)
- {
- tm_t = s.st_mtime;
- ret = 1;
- }
- }
- filedate = localtime(&tm_t);
-
- tmzip->tm_sec = filedate->tm_sec;
- tmzip->tm_min = filedate->tm_min;
- tmzip->tm_hour = filedate->tm_hour;
- tmzip->tm_mday = filedate->tm_mday;
- tmzip->tm_mon = filedate->tm_mon ;
- tmzip->tm_year = filedate->tm_year;
-
- return ret;
-}
-#else
-uLong filetime(f, tmzip, dt)
- char *f; /* name of file to get info on */
- tm_zip *tmzip; /* return value: access, modific. and creation times */
- uLong *dt; /* dostime */
-{
- return 0;
-}
-#endif
-#endif
-
-
-
-
-int check_exist_file(filename)
- const char* filename;
-{
- FILE* ftestexist;
- int ret = 1;
- ftestexist = FOPEN_FUNC(filename,"rb");
- if (ftestexist==NULL)
- ret = 0;
- else
- fclose(ftestexist);
- return ret;
-}
-
-void do_banner()
-{
- printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n");
- printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n");
-}
-
-void do_help()
-{
- printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \
- " -o Overwrite existing file.zip\n" \
- " -a Append to existing file.zip\n" \
- " -0 Store only\n" \
- " -1 Compress faster\n" \
- " -9 Compress better\n\n" \
- " -j exclude path. store only the file name.\n\n");
-}
-
-/* calculate the CRC32 of a file,
- because to encrypt a file, we need known the CRC32 of the file before */
-int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc)
-{
- unsigned long calculate_crc=0;
- int err=ZIP_OK;
- FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
-
- unsigned long size_read = 0;
- unsigned long total_read = 0;
- if (fin==NULL)
- {
- err = ZIP_ERRNO;
- }
-
- if (err == ZIP_OK)
- do
- {
- err = ZIP_OK;
- size_read = (int)fread(buf,1,size_buf,fin);
- if (size_read < size_buf)
- if (feof(fin)==0)
- {
- printf("error in reading %s\n",filenameinzip);
- err = ZIP_ERRNO;
- }
-
- if (size_read>0)
- calculate_crc = crc32(calculate_crc,buf,size_read);
- total_read += size_read;
-
- } while ((err == ZIP_OK) && (size_read>0));
-
- if (fin)
- fclose(fin);
-
- *result_crc=calculate_crc;
- printf("file %s crc %lx\n", filenameinzip, calculate_crc);
- return err;
-}
-
-int isLargeFile(const char* filename)
-{
- int largeFile = 0;
- ZPOS64_T pos = 0;
- FILE* pFile = FOPEN_FUNC(filename, "rb");
-
- if(pFile != NULL)
- {
- int n = FSEEKO_FUNC(pFile, 0, SEEK_END);
- pos = FTELLO_FUNC(pFile);
-
- printf("File : %s is %lld bytes\n", filename, pos);
-
- if(pos >= 0xffffffff)
- largeFile = 1;
-
- fclose(pFile);
- }
-
- return largeFile;
-}
-
-int main(argc,argv)
- int argc;
- char *argv[];
-{
- int i;
- int opt_overwrite=0;
- int opt_compress_level=Z_DEFAULT_COMPRESSION;
- int opt_exclude_path=0;
- int zipfilenamearg = 0;
- char filename_try[MAXFILENAME+16];
- int zipok;
- int err=0;
- int size_buf=0;
- void* buf=NULL;
- const char* password=NULL;
-
-
- do_banner();
- if (argc==1)
- {
- do_help();
- return 0;
- }
- else
- {
- for (i=1;i<argc;i++)
- {
- if ((*argv[i])=='-')
- {
- const char *p=argv[i]+1;
-
- while ((*p)!='\0')
- {
- char c=*(p++);;
- if ((c=='o') || (c=='O'))
- opt_overwrite = 1;
- if ((c=='a') || (c=='A'))
- opt_overwrite = 2;
- if ((c>='0') && (c<='9'))
- opt_compress_level = c-'0';
- if ((c=='j') || (c=='J'))
- opt_exclude_path = 1;
-
- if (((c=='p') || (c=='P')) && (i+1<argc))
- {
- password=argv[i+1];
- i++;
- }
- }
- }
- else
- {
- if (zipfilenamearg == 0)
- {
- zipfilenamearg = i ;
- }
- }
- }
- }
-
- size_buf = WRITEBUFFERSIZE;
- buf = (void*)malloc(size_buf);
- if (buf==NULL)
- {
- printf("Error allocating memory\n");
- return ZIP_INTERNALERROR;
- }
-
- if (zipfilenamearg==0)
- {
- zipok=0;
- }
- else
- {
- int i,len;
- int dot_found=0;
-
- zipok = 1 ;
- strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
- /* strncpy doesnt append the trailing NULL, of the string is too long. */
- filename_try[ MAXFILENAME ] = '\0';
-
- len=(int)strlen(filename_try);
- for (i=0;i<len;i++)
- if (filename_try[i]=='.')
- dot_found=1;
-
- if (dot_found==0)
- strcat(filename_try,".zip");
-
- if (opt_overwrite==2)
- {
- /* if the file don't exist, we not append file */
- if (check_exist_file(filename_try)==0)
- opt_overwrite=1;
- }
- else
- if (opt_overwrite==0)
- if (check_exist_file(filename_try)!=0)
- {
- char rep=0;
- do
- {
- char answer[128];
- int ret;
- printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
- ret = scanf("%1s",answer);
- if (ret != 1)
- {
- exit(EXIT_FAILURE);
- }
- rep = answer[0] ;
- if ((rep>='a') && (rep<='z'))
- rep -= 0x20;
- }
- while ((rep!='Y') && (rep!='N') && (rep!='A'));
- if (rep=='N')
- zipok = 0;
- if (rep=='A')
- opt_overwrite = 2;
- }
- }
-
- if (zipok==1)
- {
- zipFile zf;
- int errclose;
-# ifdef USEWIN32IOAPI
- zlib_filefunc64_def ffunc;
- fill_win32_filefunc64A(&ffunc);
- zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
-# else
- zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0);
-# endif
-
- if (zf == NULL)
- {
- printf("error opening %s\n",filename_try);
- err= ZIP_ERRNO;
- }
- else
- printf("creating %s\n",filename_try);
-
- for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
- {
- if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) &&
- ((argv[i][1]=='o') || (argv[i][1]=='O') ||
- (argv[i][1]=='a') || (argv[i][1]=='A') ||
- (argv[i][1]=='p') || (argv[i][1]=='P') ||
- ((argv[i][1]>='0') || (argv[i][1]<='9'))) &&
- (strlen(argv[i]) == 2)))
- {
- FILE * fin;
- int size_read;
- const char* filenameinzip = argv[i];
- const char *savefilenameinzip;
- zip_fileinfo zi;
- unsigned long crcFile=0;
- int zip64 = 0;
-
- zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
- zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
- zi.dosDate = 0;
- zi.internal_fa = 0;
- zi.external_fa = 0;
- filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
-
-/*
- err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
- NULL,0,NULL,0,NULL / * comment * /,
- (opt_compress_level != 0) ? Z_DEFLATED : 0,
- opt_compress_level);
-*/
- if ((password != NULL) && (err==ZIP_OK))
- err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
-
- zip64 = isLargeFile(filenameinzip);
-
- /* The path name saved, should not include a leading slash. */
- /*if it did, windows/xp and dynazip couldn't read the zip file. */
- savefilenameinzip = filenameinzip;
- while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' )
- {
- savefilenameinzip++;
- }
-
- /*should the zip file contain any path at all?*/
- if( opt_exclude_path )
- {
- const char *tmpptr;
- const char *lastslash = 0;
- for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++)
- {
- if( *tmpptr == '\\' || *tmpptr == '/')
- {
- lastslash = tmpptr;
- }
- }
- if( lastslash != NULL )
- {
- savefilenameinzip = lastslash+1; // base filename follows last slash.
- }
- }
-
- /**/
- err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi,
- NULL,0,NULL,0,NULL /* comment*/,
- (opt_compress_level != 0) ? Z_DEFLATED : 0,
- opt_compress_level,0,
- /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
- -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
- password,crcFile, zip64);
-
- if (err != ZIP_OK)
- printf("error in opening %s in zipfile\n",filenameinzip);
- else
- {
- fin = FOPEN_FUNC(filenameinzip,"rb");
- if (fin==NULL)
- {
- err=ZIP_ERRNO;
- printf("error in opening %s for reading\n",filenameinzip);
- }
- }
-
- if (err == ZIP_OK)
- do
- {
- err = ZIP_OK;
- size_read = (int)fread(buf,1,size_buf,fin);
- if (size_read < size_buf)
- if (feof(fin)==0)
- {
- printf("error in reading %s\n",filenameinzip);
- err = ZIP_ERRNO;
- }
-
- if (size_read>0)
- {
- err = zipWriteInFileInZip (zf,buf,size_read);
- if (err<0)
- {
- printf("error in writing %s in the zipfile\n",
- filenameinzip);
- }
-
- }
- } while ((err == ZIP_OK) && (size_read>0));
-
- if (fin)
- fclose(fin);
-
- if (err<0)
- err=ZIP_ERRNO;
- else
- {
- err = zipCloseFileInZip(zf);
- if (err!=ZIP_OK)
- printf("error in closing %s in the zipfile\n",
- filenameinzip);
- }
- }
- }
- errclose = zipClose(zf,NULL);
- if (errclose != ZIP_OK)
- printf("error in closing %s\n",filename_try);
- }
- else
- {
- do_help();
- }
-
- free(buf);
- return 0;
-}
+++ /dev/null
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@/minizip
-
-Name: minizip
-Description: Minizip zip file manipulation library
-Requires:
-Version: @PACKAGE_VERSION@
-Libs: -L${libdir} -lminizip
-Libs.private: -lz
-Cflags: -I${includedir}
+++ /dev/null
-/*
- Additional tools for Minizip
- Code: Xavier Roche '2004
- License: Same as ZLIB (www.gzip.org)
-*/
-
-/* Code */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "zlib.h"
-#include "unzip.h"
-
-#define READ_8(adr) ((unsigned char)*(adr))
-#define READ_16(adr) ( READ_8(adr) | (READ_8(adr+1) << 8) )
-#define READ_32(adr) ( READ_16(adr) | (READ_16((adr)+2) << 16) )
-
-#define WRITE_8(buff, n) do { \
- *((unsigned char*)(buff)) = (unsigned char) ((n) & 0xff); \
-} while(0)
-#define WRITE_16(buff, n) do { \
- WRITE_8((unsigned char*)(buff), n); \
- WRITE_8(((unsigned char*)(buff)) + 1, (n) >> 8); \
-} while(0)
-#define WRITE_32(buff, n) do { \
- WRITE_16((unsigned char*)(buff), (n) & 0xffff); \
- WRITE_16((unsigned char*)(buff) + 2, (n) >> 16); \
-} while(0)
-
-extern int ZEXPORT unzRepair(file, fileOut, fileOutTmp, nRecovered, bytesRecovered)
-const char* file;
-const char* fileOut;
-const char* fileOutTmp;
-uLong* nRecovered;
-uLong* bytesRecovered;
-{
- int err = Z_OK;
- FILE* fpZip = fopen(file, "rb");
- FILE* fpOut = fopen(fileOut, "wb");
- FILE* fpOutCD = fopen(fileOutTmp, "wb");
- if (fpZip != NULL && fpOut != NULL) {
- int entries = 0;
- uLong totalBytes = 0;
- char header[30];
- char filename[1024];
- char extra[1024];
- int offset = 0;
- int offsetCD = 0;
- while ( fread(header, 1, 30, fpZip) == 30 ) {
- int currentOffset = offset;
-
- /* File entry */
- if (READ_32(header) == 0x04034b50) {
- unsigned int version = READ_16(header + 4);
- unsigned int gpflag = READ_16(header + 6);
- unsigned int method = READ_16(header + 8);
- unsigned int filetime = READ_16(header + 10);
- unsigned int filedate = READ_16(header + 12);
- unsigned int crc = READ_32(header + 14); /* crc */
- unsigned int cpsize = READ_32(header + 18); /* compressed size */
- unsigned int uncpsize = READ_32(header + 22); /* uncompressed sz */
- unsigned int fnsize = READ_16(header + 26); /* file name length */
- unsigned int extsize = READ_16(header + 28); /* extra field length */
- filename[0] = extra[0] = '\0';
-
- /* Header */
- if (fwrite(header, 1, 30, fpOut) == 30) {
- offset += 30;
- } else {
- err = Z_ERRNO;
- break;
- }
-
- /* Filename */
- if (fnsize > 0) {
- if (fnsize < sizeof(filename)) {
- if (fread(filename, 1, fnsize, fpZip) == fnsize) {
- if (fwrite(filename, 1, fnsize, fpOut) == fnsize) {
- offset += fnsize;
- } else {
- err = Z_ERRNO;
- break;
- }
- } else {
- err = Z_ERRNO;
- break;
- }
- } else {
- err = Z_ERRNO;
- break;
- }
- } else {
- err = Z_STREAM_ERROR;
- break;
- }
-
- /* Extra field */
- if (extsize > 0) {
- if (extsize < sizeof(extra)) {
- if (fread(extra, 1, extsize, fpZip) == extsize) {
- if (fwrite(extra, 1, extsize, fpOut) == extsize) {
- offset += extsize;
- } else {
- err = Z_ERRNO;
- break;
- }
- } else {
- err = Z_ERRNO;
- break;
- }
- } else {
- err = Z_ERRNO;
- break;
- }
- }
-
- /* Data */
- {
- int dataSize = cpsize;
- if (dataSize == 0) {
- dataSize = uncpsize;
- }
- if (dataSize > 0) {
- char* data = malloc(dataSize);
- if (data != NULL) {
- if ((int)fread(data, 1, dataSize, fpZip) == dataSize) {
- if ((int)fwrite(data, 1, dataSize, fpOut) == dataSize) {
- offset += dataSize;
- totalBytes += dataSize;
- } else {
- err = Z_ERRNO;
- }
- } else {
- err = Z_ERRNO;
- }
- free(data);
- if (err != Z_OK) {
- break;
- }
- } else {
- err = Z_MEM_ERROR;
- break;
- }
- }
- }
-
- /* Central directory entry */
- {
- char header[46];
- char* comment = "";
- int comsize = (int) strlen(comment);
- WRITE_32(header, 0x02014b50);
- WRITE_16(header + 4, version);
- WRITE_16(header + 6, version);
- WRITE_16(header + 8, gpflag);
- WRITE_16(header + 10, method);
- WRITE_16(header + 12, filetime);
- WRITE_16(header + 14, filedate);
- WRITE_32(header + 16, crc);
- WRITE_32(header + 20, cpsize);
- WRITE_32(header + 24, uncpsize);
- WRITE_16(header + 28, fnsize);
- WRITE_16(header + 30, extsize);
- WRITE_16(header + 32, comsize);
- WRITE_16(header + 34, 0); /* disk # */
- WRITE_16(header + 36, 0); /* int attrb */
- WRITE_32(header + 38, 0); /* ext attrb */
- WRITE_32(header + 42, currentOffset);
- /* Header */
- if (fwrite(header, 1, 46, fpOutCD) == 46) {
- offsetCD += 46;
-
- /* Filename */
- if (fnsize > 0) {
- if (fwrite(filename, 1, fnsize, fpOutCD) == fnsize) {
- offsetCD += fnsize;
- } else {
- err = Z_ERRNO;
- break;
- }
- } else {
- err = Z_STREAM_ERROR;
- break;
- }
-
- /* Extra field */
- if (extsize > 0) {
- if (fwrite(extra, 1, extsize, fpOutCD) == extsize) {
- offsetCD += extsize;
- } else {
- err = Z_ERRNO;
- break;
- }
- }
-
- /* Comment field */
- if (comsize > 0) {
- if ((int)fwrite(comment, 1, comsize, fpOutCD) == comsize) {
- offsetCD += comsize;
- } else {
- err = Z_ERRNO;
- break;
- }
- }
-
-
- } else {
- err = Z_ERRNO;
- break;
- }
- }
-
- /* Success */
- entries++;
-
- } else {
- break;
- }
- }
-
- /* Final central directory */
- {
- int entriesZip = entries;
- char header[22];
- char* comment = ""; // "ZIP File recovered by zlib/minizip/mztools";
- int comsize = (int) strlen(comment);
- if (entriesZip > 0xffff) {
- entriesZip = 0xffff;
- }
- WRITE_32(header, 0x06054b50);
- WRITE_16(header + 4, 0); /* disk # */
- WRITE_16(header + 6, 0); /* disk # */
- WRITE_16(header + 8, entriesZip); /* hack */
- WRITE_16(header + 10, entriesZip); /* hack */
- WRITE_32(header + 12, offsetCD); /* size of CD */
- WRITE_32(header + 16, offset); /* offset to CD */
- WRITE_16(header + 20, comsize); /* comment */
-
- /* Header */
- if (fwrite(header, 1, 22, fpOutCD) == 22) {
-
- /* Comment field */
- if (comsize > 0) {
- if ((int)fwrite(comment, 1, comsize, fpOutCD) != comsize) {
- err = Z_ERRNO;
- }
- }
-
- } else {
- err = Z_ERRNO;
- }
- }
-
- /* Final merge (file + central directory) */
- fclose(fpOutCD);
- if (err == Z_OK) {
- fpOutCD = fopen(fileOutTmp, "rb");
- if (fpOutCD != NULL) {
- int nRead;
- char buffer[8192];
- while ( (nRead = (int)fread(buffer, 1, sizeof(buffer), fpOutCD)) > 0) {
- if ((int)fwrite(buffer, 1, nRead, fpOut) != nRead) {
- err = Z_ERRNO;
- break;
- }
- }
- fclose(fpOutCD);
- }
- }
-
- /* Close */
- fclose(fpZip);
- fclose(fpOut);
-
- /* Wipe temporary file */
- (void)remove(fileOutTmp);
-
- /* Number of recovered entries */
- if (err == Z_OK) {
- if (nRecovered != NULL) {
- *nRecovered = entries;
- }
- if (bytesRecovered != NULL) {
- *bytesRecovered = totalBytes;
- }
- }
- } else {
- err = Z_STREAM_ERROR;
- }
- return err;
-}
+++ /dev/null
-/*
- Additional tools for Minizip
- Code: Xavier Roche '2004
- License: Same as ZLIB (www.gzip.org)
-*/
-
-#ifndef _zip_tools_H
-#define _zip_tools_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef _ZLIB_H
-#include "zlib.h"
-#endif
-
-#include "unzip.h"
-
-/* Repair a ZIP file (missing central directory)
- file: file to recover
- fileOut: output file after recovery
- fileOutTmp: temporary file name used for recovery
-*/
-extern int ZEXPORT unzRepair(const char* file,
- const char* fileOut,
- const char* fileOutTmp,
- uLong* nRecovered,
- uLong* bytesRecovered);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif
+++ /dev/null
-/* unzip.c -- IO for uncompress .zip files using zlib
- Version 1.1, February 14h, 2010
- part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications of Unzip for Zip64
- Copyright (C) 2007-2008 Even Rouault
-
- Modifications for Zip64 support on both zip and unzip
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-
- For more info read MiniZip_info.txt
-
-
- ------------------------------------------------------------------------------------
- Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
- compatibility with older software. The following is from the original crypt.c.
- Code woven in by Terry Thorsen 1/2003.
-
- Copyright (c) 1990-2000 Info-ZIP. All rights reserved.
-
- See the accompanying file LICENSE, version 2000-Apr-09 or later
- (the contents of which are also included in zip.h) for terms of use.
- If, for some reason, all these files are missing, the Info-ZIP license
- also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
-
- crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h]
-
- The encryption/decryption parts of this source code (as opposed to the
- non-echoing password parts) were originally written in Europe. The
- whole source package can be freely distributed, including from the USA.
- (Prior to January 2000, re-export from the US was a violation of US law.)
-
- This encryption code is a direct transcription of the algorithm from
- Roger Schlafly, described by Phil Katz in the file appnote.txt. This
- file (appnote.txt) is distributed with the PKZIP program (even in the
- version without encryption capabilities).
-
- ------------------------------------------------------------------------------------
-
- Changes in unzip.c
-
- 2007-2008 - Even Rouault - Addition of cpl_unzGetCurrentFileZStreamPos
- 2007-2008 - Even Rouault - Decoration of symbol names unz* -> cpl_unz*
- 2007-2008 - Even Rouault - Remove old C style function prototypes
- 2007-2008 - Even Rouault - Add unzip support for ZIP64
-
- Copyright (C) 2007-2008 Even Rouault
-
-
- Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again).
- Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G
- should only read the compressed/uncompressed size from the Zip64 format if
- the size from normal header was 0xFFFFFFFF
- Oct-2009 - Mathias Svensson - Applied some bug fixes from paches recived from Gilles Vollant
- Oct-2009 - Mathias Svensson - Applied support to unzip files with compression mathod BZIP2 (bzip2 lib is required)
- Patch created by Daniel Borca
-
- Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
-
- Copyright (C) 1998 - 2010 Gilles Vollant, Even Rouault, Mathias Svensson
-
-*/
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef NOUNCRYPT
- #define NOUNCRYPT
-#endif
-
-#include "zlib.h"
-#include "unzip.h"
-
-#ifdef STDC
-# include <stddef.h>
-# include <string.h>
-# include <stdlib.h>
-#endif
-#ifdef NO_ERRNO_H
- extern int errno;
-#else
-# include <errno.h>
-#endif
-
-
-#ifndef local
-# define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-
-#ifndef CASESENSITIVITYDEFAULT_NO
-# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
-# define CASESENSITIVITYDEFAULT_NO
-# endif
-#endif
-
-
-#ifndef UNZ_BUFSIZE
-#define UNZ_BUFSIZE (16384)
-#endif
-
-#ifndef UNZ_MAXFILENAMEINZIP
-#define UNZ_MAXFILENAMEINZIP (256)
-#endif
-
-#ifndef ALLOC
-# define ALLOC(size) (malloc(size))
-#endif
-#ifndef TRYFREE
-# define TRYFREE(p) {if (p) free(p);}
-#endif
-
-#define SIZECENTRALDIRITEM (0x2e)
-#define SIZEZIPLOCALHEADER (0x1e)
-
-
-const char unz_copyright[] =
- " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
-
-/* unz_file_info_interntal contain internal info about a file in zipfile*/
-typedef struct unz_file_info64_internal_s
-{
- ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */
-} unz_file_info64_internal;
-
-
-/* file_in_zip_read_info_s contain internal information about a file in zipfile,
- when reading and decompress it */
-typedef struct
-{
- char *read_buffer; /* internal buffer for compressed data */
- z_stream stream; /* zLib stream structure for inflate */
-
-#ifdef HAVE_BZIP2
- bz_stream bstream; /* bzLib stream structure for bziped */
-#endif
-
- ZPOS64_T pos_in_zipfile; /* position in byte on the zipfile, for fseek*/
- uLong stream_initialised; /* flag set if stream structure is initialised*/
-
- ZPOS64_T offset_local_extrafield;/* offset of the local extra field */
- uInt size_local_extrafield;/* size of the local extra field */
- ZPOS64_T pos_local_extrafield; /* position in the local extra field in read*/
- ZPOS64_T total_out_64;
-
- uLong crc32; /* crc32 of all data uncompressed */
- uLong crc32_wait; /* crc32 we must obtain after decompress all */
- ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */
- ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/
- zlib_filefunc64_32_def z_filefunc;
- voidpf filestream; /* io structore of the zipfile */
- uLong compression_method; /* compression method (0==store) */
- ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
- int raw;
-} file_in_zip64_read_info_s;
-
-
-/* unz64_s contain internal information about the zipfile
-*/
-typedef struct
-{
- zlib_filefunc64_32_def z_filefunc;
- int is64bitOpenFunction;
- voidpf filestream; /* io structore of the zipfile */
- unz_global_info64 gi; /* public global information */
- ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
- ZPOS64_T num_file; /* number of the current file in the zipfile*/
- ZPOS64_T pos_in_central_dir; /* pos of the current file in the central dir*/
- ZPOS64_T current_file_ok; /* flag about the usability of the current file*/
- ZPOS64_T central_pos; /* position of the beginning of the central dir*/
-
- ZPOS64_T size_central_dir; /* size of the central directory */
- ZPOS64_T offset_central_dir; /* offset of start of central directory with
- respect to the starting disk number */
-
- unz_file_info64 cur_file_info; /* public info about the current file in zip*/
- unz_file_info64_internal cur_file_info_internal; /* private info about it*/
- file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current
- file if we are decompressing it */
- int encrypted;
-
- int isZip64;
-
-# ifndef NOUNCRYPT
- unsigned long keys[3]; /* keys defining the pseudo-random sequence */
- const z_crc_t* pcrc_32_tab;
-# endif
-} unz64_s;
-
-
-#ifndef NOUNCRYPT
-#include "crypt.h"
-#endif
-
-/* ===========================================================================
- Read a byte from a gz_stream; update next_in and avail_in. Return EOF
- for end of file.
- IN assertion: the stream s has been sucessfully opened for reading.
-*/
-
-
-local int unz64local_getByte OF((
- const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream,
- int *pi));
-
-local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi)
-{
- unsigned char c;
- int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
- if (err==1)
- {
- *pi = (int)c;
- return UNZ_OK;
- }
- else
- {
- if (ZERROR64(*pzlib_filefunc_def,filestream))
- return UNZ_ERRNO;
- else
- return UNZ_EOF;
- }
-}
-
-
-/* ===========================================================================
- Reads a long in LSB order from the given gz_stream. Sets
-*/
-local int unz64local_getShort OF((
- const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream,
- uLong *pX));
-
-local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream,
- uLong *pX)
-{
- uLong x ;
- int i = 0;
- int err;
-
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (uLong)i;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((uLong)i)<<8;
-
- if (err==UNZ_OK)
- *pX = x;
- else
- *pX = 0;
- return err;
-}
-
-local int unz64local_getLong OF((
- const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream,
- uLong *pX));
-
-local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream,
- uLong *pX)
-{
- uLong x ;
- int i = 0;
- int err;
-
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (uLong)i;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((uLong)i)<<8;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((uLong)i)<<16;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((uLong)i)<<24;
-
- if (err==UNZ_OK)
- *pX = x;
- else
- *pX = 0;
- return err;
-}
-
-local int unz64local_getLong64 OF((
- const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream,
- ZPOS64_T *pX));
-
-
-local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream,
- ZPOS64_T *pX)
-{
- ZPOS64_T x ;
- int i = 0;
- int err;
-
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (ZPOS64_T)i;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((ZPOS64_T)i)<<8;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((ZPOS64_T)i)<<16;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((ZPOS64_T)i)<<24;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((ZPOS64_T)i)<<32;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((ZPOS64_T)i)<<40;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((ZPOS64_T)i)<<48;
-
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((ZPOS64_T)i)<<56;
-
- if (err==UNZ_OK)
- *pX = x;
- else
- *pX = 0;
- return err;
-}
-
-/* My own strcmpi / strcasecmp */
-local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2)
-{
- for (;;)
- {
- char c1=*(fileName1++);
- char c2=*(fileName2++);
- if ((c1>='a') && (c1<='z'))
- c1 -= 0x20;
- if ((c2>='a') && (c2<='z'))
- c2 -= 0x20;
- if (c1=='\0')
- return ((c2=='\0') ? 0 : -1);
- if (c2=='\0')
- return 1;
- if (c1<c2)
- return -1;
- if (c1>c2)
- return 1;
- }
-}
-
-
-#ifdef CASESENSITIVITYDEFAULT_NO
-#define CASESENSITIVITYDEFAULTVALUE 2
-#else
-#define CASESENSITIVITYDEFAULTVALUE 1
-#endif
-
-#ifndef STRCMPCASENOSENTIVEFUNCTION
-#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
-#endif
-
-/*
- Compare two filename (fileName1,fileName2).
- If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
- If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
- or strcasecmp)
- If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
- (like 1 on Unix, 2 on Windows)
-
-*/
-extern int ZEXPORT unzStringFileNameCompare (const char* fileName1,
- const char* fileName2,
- int iCaseSensitivity)
-
-{
- if (iCaseSensitivity==0)
- iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
-
- if (iCaseSensitivity==1)
- return strcmp(fileName1,fileName2);
-
- return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);
-}
-
-#ifndef BUFREADCOMMENT
-#define BUFREADCOMMENT (0x400)
-#endif
-
-/*
- Locate the Central directory of a zipfile (at the end, just before
- the global comment)
-*/
-local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
-local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
-{
- unsigned char* buf;
- ZPOS64_T uSizeFile;
- ZPOS64_T uBackRead;
- ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
- ZPOS64_T uPosFound=0;
-
- if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
- return 0;
-
-
- uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
-
- if (uMaxBack>uSizeFile)
- uMaxBack = uSizeFile;
-
- buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
- if (buf==NULL)
- return 0;
-
- uBackRead = 4;
- while (uBackRead<uMaxBack)
- {
- uLong uReadSize;
- ZPOS64_T uReadPos ;
- int i;
- if (uBackRead+BUFREADCOMMENT>uMaxBack)
- uBackRead = uMaxBack;
- else
- uBackRead+=BUFREADCOMMENT;
- uReadPos = uSizeFile-uBackRead ;
-
- uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
- (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
- if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- break;
-
- if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
- break;
-
- for (i=(int)uReadSize-3; (i--)>0;)
- if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
- ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
- {
- uPosFound = uReadPos+i;
- break;
- }
-
- if (uPosFound!=0)
- break;
- }
- TRYFREE(buf);
- return uPosFound;
-}
-
-
-/*
- Locate the Central directory 64 of a zipfile (at the end, just before
- the global comment)
-*/
-local ZPOS64_T unz64local_SearchCentralDir64 OF((
- const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream));
-
-local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def,
- voidpf filestream)
-{
- unsigned char* buf;
- ZPOS64_T uSizeFile;
- ZPOS64_T uBackRead;
- ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
- ZPOS64_T uPosFound=0;
- uLong uL;
- ZPOS64_T relativeOffset;
-
- if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
- return 0;
-
-
- uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
-
- if (uMaxBack>uSizeFile)
- uMaxBack = uSizeFile;
-
- buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
- if (buf==NULL)
- return 0;
-
- uBackRead = 4;
- while (uBackRead<uMaxBack)
- {
- uLong uReadSize;
- ZPOS64_T uReadPos;
- int i;
- if (uBackRead+BUFREADCOMMENT>uMaxBack)
- uBackRead = uMaxBack;
- else
- uBackRead+=BUFREADCOMMENT;
- uReadPos = uSizeFile-uBackRead ;
-
- uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
- (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
- if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- break;
-
- if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
- break;
-
- for (i=(int)uReadSize-3; (i--)>0;)
- if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
- ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
- {
- uPosFound = uReadPos+i;
- break;
- }
-
- if (uPosFound!=0)
- break;
- }
- TRYFREE(buf);
- if (uPosFound == 0)
- return 0;
-
- /* Zip64 end of central directory locator */
- if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return 0;
-
- /* the signature, already checked */
- if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
- return 0;
-
- /* number of the disk with the start of the zip64 end of central directory */
- if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
- return 0;
- if (uL != 0)
- return 0;
-
- /* relative offset of the zip64 end of central directory record */
- if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK)
- return 0;
-
- /* total number of disks */
- if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
- return 0;
- if (uL != 1)
- return 0;
-
- /* Goto end of central directory record */
- if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return 0;
-
- /* the signature */
- if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
- return 0;
-
- if (uL != 0x06064b50)
- return 0;
-
- return relativeOffset;
-}
-
-/*
- Open a Zip file. path contain the full pathname (by example,
- on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer
- "zlib/zlib114.zip".
- If the zipfile cannot be opened (file doesn't exist or in not valid), the
- return value is NULL.
- Else, the return value is a unzFile Handle, usable with other function
- of this unzip package.
-*/
-local unzFile unzOpenInternal (const void *path,
- zlib_filefunc64_32_def* pzlib_filefunc64_32_def,
- int is64bitOpenFunction)
-{
- unz64_s us;
- unz64_s *s;
- ZPOS64_T central_pos;
- uLong uL;
-
- uLong number_disk; /* number of the current dist, used for
- spaning ZIP, unsupported, always 0*/
- uLong number_disk_with_CD; /* number the the disk with central dir, used
- for spaning ZIP, unsupported, always 0*/
- ZPOS64_T number_entry_CD; /* total number of entries in
- the central dir
- (same than number_entry on nospan) */
-
- int err=UNZ_OK;
-
- if (unz_copyright[0]!=' ')
- return NULL;
-
- us.z_filefunc.zseek32_file = NULL;
- us.z_filefunc.ztell32_file = NULL;
- if (pzlib_filefunc64_32_def==NULL)
- fill_fopen64_filefunc(&us.z_filefunc.zfile_func64);
- else
- us.z_filefunc = *pzlib_filefunc64_32_def;
- us.is64bitOpenFunction = is64bitOpenFunction;
-
-
-
- us.filestream = ZOPEN64(us.z_filefunc,
- path,
- ZLIB_FILEFUNC_MODE_READ |
- ZLIB_FILEFUNC_MODE_EXISTING);
- if (us.filestream==NULL)
- return NULL;
-
- central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream);
- if (central_pos)
- {
- uLong uS;
- ZPOS64_T uL64;
-
- us.isZip64 = 1;
-
- if (ZSEEK64(us.z_filefunc, us.filestream,
- central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err=UNZ_ERRNO;
-
- /* the signature, already checked */
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* size of zip64 end of central directory record */
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* version made by */
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* version needed to extract */
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* number of this disk */
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* number of the disk with the start of the central directory */
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* total number of entries in the central directory on this disk */
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* total number of entries in the central directory */
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if ((number_entry_CD!=us.gi.number_entry) ||
- (number_disk_with_CD!=0) ||
- (number_disk!=0))
- err=UNZ_BADZIPFILE;
-
- /* size of the central directory */
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* offset of start of central directory with respect to the
- starting disk number */
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- us.gi.size_comment = 0;
- }
- else
- {
- central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream);
- if (central_pos==0)
- err=UNZ_ERRNO;
-
- us.isZip64 = 0;
-
- if (ZSEEK64(us.z_filefunc, us.filestream,
- central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err=UNZ_ERRNO;
-
- /* the signature, already checked */
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* number of this disk */
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* number of the disk with the start of the central directory */
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* total number of entries in the central dir on this disk */
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
- us.gi.number_entry = uL;
-
- /* total number of entries in the central dir */
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
- number_entry_CD = uL;
-
- if ((number_entry_CD!=us.gi.number_entry) ||
- (number_disk_with_CD!=0) ||
- (number_disk!=0))
- err=UNZ_BADZIPFILE;
-
- /* size of the central directory */
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
- us.size_central_dir = uL;
-
- /* offset of start of central directory with respect to the
- starting disk number */
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
- us.offset_central_dir = uL;
-
- /* zipfile comment length */
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
- err=UNZ_ERRNO;
- }
-
- if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
- (err==UNZ_OK))
- err=UNZ_BADZIPFILE;
-
- if (err!=UNZ_OK)
- {
- ZCLOSE64(us.z_filefunc, us.filestream);
- return NULL;
- }
-
- us.byte_before_the_zipfile = central_pos -
- (us.offset_central_dir+us.size_central_dir);
- us.central_pos = central_pos;
- us.pfile_in_zip_read = NULL;
- us.encrypted = 0;
-
-
- s=(unz64_s*)ALLOC(sizeof(unz64_s));
- if( s != NULL)
- {
- *s=us;
- unzGoToFirstFile((unzFile)s);
- }
- return (unzFile)s;
-}
-
-
-extern unzFile ZEXPORT unzOpen2 (const char *path,
- zlib_filefunc_def* pzlib_filefunc32_def)
-{
- if (pzlib_filefunc32_def != NULL)
- {
- zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
- fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
- return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0);
- }
- else
- return unzOpenInternal(path, NULL, 0);
-}
-
-extern unzFile ZEXPORT unzOpen2_64 (const void *path,
- zlib_filefunc64_def* pzlib_filefunc_def)
-{
- if (pzlib_filefunc_def != NULL)
- {
- zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
- zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
- zlib_filefunc64_32_def_fill.ztell32_file = NULL;
- zlib_filefunc64_32_def_fill.zseek32_file = NULL;
- return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1);
- }
- else
- return unzOpenInternal(path, NULL, 1);
-}
-
-extern unzFile ZEXPORT unzOpen (const char *path)
-{
- return unzOpenInternal(path, NULL, 0);
-}
-
-extern unzFile ZEXPORT unzOpen64 (const void *path)
-{
- return unzOpenInternal(path, NULL, 1);
-}
-
-/*
- Close a ZipFile opened with unzOpen.
- If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
- these files MUST be closed with unzCloseCurrentFile before call unzClose.
- return UNZ_OK if there is no problem. */
-extern int ZEXPORT unzClose (unzFile file)
-{
- unz64_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
-
- if (s->pfile_in_zip_read!=NULL)
- unzCloseCurrentFile(file);
-
- ZCLOSE64(s->z_filefunc, s->filestream);
- TRYFREE(s);
- return UNZ_OK;
-}
-
-
-/*
- Write info about the ZipFile in the *pglobal_info structure.
- No preparation of the structure is needed
- return UNZ_OK if there is no problem. */
-extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info)
-{
- unz64_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- *pglobal_info=s->gi;
- return UNZ_OK;
-}
-
-extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32)
-{
- unz64_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- /* to do : check if number_entry is not truncated */
- pglobal_info32->number_entry = (uLong)s->gi.number_entry;
- pglobal_info32->size_comment = s->gi.size_comment;
- return UNZ_OK;
-}
-/*
- Translate date/time from Dos format to tm_unz (readable more easilty)
-*/
-local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm)
-{
- ZPOS64_T uDate;
- uDate = (ZPOS64_T)(ulDosDate>>16);
- ptm->tm_mday = (uInt)(uDate&0x1f) ;
- ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ;
- ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;
-
- ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800);
- ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ;
- ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ;
-}
-
-/*
- Get Info about the current file in the zipfile, with internal only info
-*/
-local int unz64local_GetCurrentFileInfoInternal OF((unzFile file,
- unz_file_info64 *pfile_info,
- unz_file_info64_internal
- *pfile_info_internal,
- char *szFileName,
- uLong fileNameBufferSize,
- void *extraField,
- uLong extraFieldBufferSize,
- char *szComment,
- uLong commentBufferSize));
-
-local int unz64local_GetCurrentFileInfoInternal (unzFile file,
- unz_file_info64 *pfile_info,
- unz_file_info64_internal
- *pfile_info_internal,
- char *szFileName,
- uLong fileNameBufferSize,
- void *extraField,
- uLong extraFieldBufferSize,
- char *szComment,
- uLong commentBufferSize)
-{
- unz64_s* s;
- unz_file_info64 file_info;
- unz_file_info64_internal file_info_internal;
- int err=UNZ_OK;
- uLong uMagic;
- long lSeek=0;
- uLong uL;
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- if (ZSEEK64(s->z_filefunc, s->filestream,
- s->pos_in_central_dir+s->byte_before_the_zipfile,
- ZLIB_FILEFUNC_SEEK_SET)!=0)
- err=UNZ_ERRNO;
-
-
- /* we check the magic */
- if (err==UNZ_OK)
- {
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
- err=UNZ_ERRNO;
- else if (uMagic!=0x02014b50)
- err=UNZ_BADZIPFILE;
- }
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)
- err=UNZ_ERRNO;
-
- unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
- err=UNZ_ERRNO;
- file_info.compressed_size = uL;
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
- err=UNZ_ERRNO;
- file_info.uncompressed_size = uL;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)
- err=UNZ_ERRNO;
-
- // relative offset of local header
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
- err=UNZ_ERRNO;
- file_info_internal.offset_curfile = uL;
-
- lSeek+=file_info.size_filename;
- if ((err==UNZ_OK) && (szFileName!=NULL))
- {
- uLong uSizeRead ;
- if (file_info.size_filename<fileNameBufferSize)
- {
- *(szFileName+file_info.size_filename)='\0';
- uSizeRead = file_info.size_filename;
- }
- else
- uSizeRead = fileNameBufferSize;
-
- if ((file_info.size_filename>0) && (fileNameBufferSize>0))
- if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)
- err=UNZ_ERRNO;
- lSeek -= uSizeRead;
- }
-
- // Read extrafield
- if ((err==UNZ_OK) && (extraField!=NULL))
- {
- ZPOS64_T uSizeRead ;
- if (file_info.size_file_extra<extraFieldBufferSize)
- uSizeRead = file_info.size_file_extra;
- else
- uSizeRead = extraFieldBufferSize;
-
- if (lSeek!=0)
- {
- if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
- lSeek=0;
- else
- err=UNZ_ERRNO;
- }
-
- if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
- if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead)
- err=UNZ_ERRNO;
-
- lSeek += file_info.size_file_extra - (uLong)uSizeRead;
- }
- else
- lSeek += file_info.size_file_extra;
-
-
- if ((err==UNZ_OK) && (file_info.size_file_extra != 0))
- {
- uLong acc = 0;
-
- // since lSeek now points to after the extra field we need to move back
- lSeek -= file_info.size_file_extra;
-
- if (lSeek!=0)
- {
- if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
- lSeek=0;
- else
- err=UNZ_ERRNO;
- }
-
- while(acc < file_info.size_file_extra)
- {
- uLong headerId;
- uLong dataSize;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK)
- err=UNZ_ERRNO;
-
- /* ZIP64 extra fields */
- if (headerId == 0x0001)
- {
- uLong uL;
-
- if(file_info.uncompressed_size == MAXU32)
- {
- if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
- err=UNZ_ERRNO;
- }
-
- if(file_info.compressed_size == MAXU32)
- {
- if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
- err=UNZ_ERRNO;
- }
-
- if(file_info_internal.offset_curfile == MAXU32)
- {
- /* Relative Header offset */
- if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
- err=UNZ_ERRNO;
- }
-
- if(file_info.disk_num_start == MAXU32)
- {
- /* Disk Start Number */
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
- err=UNZ_ERRNO;
- }
-
- }
- else
- {
- if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0)
- err=UNZ_ERRNO;
- }
-
- acc += 2 + 2 + dataSize;
- }
- }
-
- if ((err==UNZ_OK) && (szComment!=NULL))
- {
- uLong uSizeRead ;
- if (file_info.size_file_comment<commentBufferSize)
- {
- *(szComment+file_info.size_file_comment)='\0';
- uSizeRead = file_info.size_file_comment;
- }
- else
- uSizeRead = commentBufferSize;
-
- if (lSeek!=0)
- {
- if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
- lSeek=0;
- else
- err=UNZ_ERRNO;
- }
-
- if ((file_info.size_file_comment>0) && (commentBufferSize>0))
- if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
- err=UNZ_ERRNO;
- lSeek+=file_info.size_file_comment - uSizeRead;
- }
- else
- lSeek+=file_info.size_file_comment;
-
-
- if ((err==UNZ_OK) && (pfile_info!=NULL))
- *pfile_info=file_info;
-
- if ((err==UNZ_OK) && (pfile_info_internal!=NULL))
- *pfile_info_internal=file_info_internal;
-
- return err;
-}
-
-
-
-/*
- Write info about the ZipFile in the *pglobal_info structure.
- No preparation of the structure is needed
- return UNZ_OK if there is no problem.
-*/
-extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file,
- unz_file_info64 * pfile_info,
- char * szFileName, uLong fileNameBufferSize,
- void *extraField, uLong extraFieldBufferSize,
- char* szComment, uLong commentBufferSize)
-{
- return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL,
- szFileName,fileNameBufferSize,
- extraField,extraFieldBufferSize,
- szComment,commentBufferSize);
-}
-
-extern int ZEXPORT unzGetCurrentFileInfo (unzFile file,
- unz_file_info * pfile_info,
- char * szFileName, uLong fileNameBufferSize,
- void *extraField, uLong extraFieldBufferSize,
- char* szComment, uLong commentBufferSize)
-{
- int err;
- unz_file_info64 file_info64;
- err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL,
- szFileName,fileNameBufferSize,
- extraField,extraFieldBufferSize,
- szComment,commentBufferSize);
- if ((err==UNZ_OK) && (pfile_info != NULL))
- {
- pfile_info->version = file_info64.version;
- pfile_info->version_needed = file_info64.version_needed;
- pfile_info->flag = file_info64.flag;
- pfile_info->compression_method = file_info64.compression_method;
- pfile_info->dosDate = file_info64.dosDate;
- pfile_info->crc = file_info64.crc;
-
- pfile_info->size_filename = file_info64.size_filename;
- pfile_info->size_file_extra = file_info64.size_file_extra;
- pfile_info->size_file_comment = file_info64.size_file_comment;
-
- pfile_info->disk_num_start = file_info64.disk_num_start;
- pfile_info->internal_fa = file_info64.internal_fa;
- pfile_info->external_fa = file_info64.external_fa;
-
- pfile_info->tmu_date = file_info64.tmu_date,
-
-
- pfile_info->compressed_size = (uLong)file_info64.compressed_size;
- pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size;
-
- }
- return err;
-}
-/*
- Set the current file of the zipfile to the first file.
- return UNZ_OK if there is no problem
-*/
-extern int ZEXPORT unzGoToFirstFile (unzFile file)
-{
- int err=UNZ_OK;
- unz64_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- s->pos_in_central_dir=s->offset_central_dir;
- s->num_file=0;
- err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
- &s->cur_file_info_internal,
- NULL,0,NULL,0,NULL,0);
- s->current_file_ok = (err == UNZ_OK);
- return err;
-}
-
-/*
- Set the current file of the zipfile to the next file.
- return UNZ_OK if there is no problem
- return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
-*/
-extern int ZEXPORT unzGoToNextFile (unzFile file)
-{
- unz64_s* s;
- int err;
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- if (!s->current_file_ok)
- return UNZ_END_OF_LIST_OF_FILE;
- if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */
- if (s->num_file+1==s->gi.number_entry)
- return UNZ_END_OF_LIST_OF_FILE;
-
- s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
- s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
- s->num_file++;
- err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
- &s->cur_file_info_internal,
- NULL,0,NULL,0,NULL,0);
- s->current_file_ok = (err == UNZ_OK);
- return err;
-}
-
-
-/*
- Try locate the file szFileName in the zipfile.
- For the iCaseSensitivity signification, see unzStringFileNameCompare
-
- return value :
- UNZ_OK if the file is found. It becomes the current file.
- UNZ_END_OF_LIST_OF_FILE if the file is not found
-*/
-extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity)
-{
- unz64_s* s;
- int err;
-
- /* We remember the 'current' position in the file so that we can jump
- * back there if we fail.
- */
- unz_file_info64 cur_file_infoSaved;
- unz_file_info64_internal cur_file_info_internalSaved;
- ZPOS64_T num_fileSaved;
- ZPOS64_T pos_in_central_dirSaved;
-
-
- if (file==NULL)
- return UNZ_PARAMERROR;
-
- if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)
- return UNZ_PARAMERROR;
-
- s=(unz64_s*)file;
- if (!s->current_file_ok)
- return UNZ_END_OF_LIST_OF_FILE;
-
- /* Save the current state */
- num_fileSaved = s->num_file;
- pos_in_central_dirSaved = s->pos_in_central_dir;
- cur_file_infoSaved = s->cur_file_info;
- cur_file_info_internalSaved = s->cur_file_info_internal;
-
- err = unzGoToFirstFile(file);
-
- while (err == UNZ_OK)
- {
- char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
- err = unzGetCurrentFileInfo64(file,NULL,
- szCurrentFileName,sizeof(szCurrentFileName)-1,
- NULL,0,NULL,0);
- if (err == UNZ_OK)
- {
- if (unzStringFileNameCompare(szCurrentFileName,
- szFileName,iCaseSensitivity)==0)
- return UNZ_OK;
- err = unzGoToNextFile(file);
- }
- }
-
- /* We failed, so restore the state of the 'current file' to where we
- * were.
- */
- s->num_file = num_fileSaved ;
- s->pos_in_central_dir = pos_in_central_dirSaved ;
- s->cur_file_info = cur_file_infoSaved;
- s->cur_file_info_internal = cur_file_info_internalSaved;
- return err;
-}
-
-
-/*
-///////////////////////////////////////////
-// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net)
-// I need random access
-//
-// Further optimization could be realized by adding an ability
-// to cache the directory in memory. The goal being a single
-// comprehensive file read to put the file I need in a memory.
-*/
-
-/*
-typedef struct unz_file_pos_s
-{
- ZPOS64_T pos_in_zip_directory; // offset in file
- ZPOS64_T num_of_file; // # of file
-} unz_file_pos;
-*/
-
-extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos)
-{
- unz64_s* s;
-
- if (file==NULL || file_pos==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- if (!s->current_file_ok)
- return UNZ_END_OF_LIST_OF_FILE;
-
- file_pos->pos_in_zip_directory = s->pos_in_central_dir;
- file_pos->num_of_file = s->num_file;
-
- return UNZ_OK;
-}
-
-extern int ZEXPORT unzGetFilePos(
- unzFile file,
- unz_file_pos* file_pos)
-{
- unz64_file_pos file_pos64;
- int err = unzGetFilePos64(file,&file_pos64);
- if (err==UNZ_OK)
- {
- file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory;
- file_pos->num_of_file = (uLong)file_pos64.num_of_file;
- }
- return err;
-}
-
-extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos)
-{
- unz64_s* s;
- int err;
-
- if (file==NULL || file_pos==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
-
- /* jump to the right spot */
- s->pos_in_central_dir = file_pos->pos_in_zip_directory;
- s->num_file = file_pos->num_of_file;
-
- /* set the current file */
- err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
- &s->cur_file_info_internal,
- NULL,0,NULL,0,NULL,0);
- /* return results */
- s->current_file_ok = (err == UNZ_OK);
- return err;
-}
-
-extern int ZEXPORT unzGoToFilePos(
- unzFile file,
- unz_file_pos* file_pos)
-{
- unz64_file_pos file_pos64;
- if (file_pos == NULL)
- return UNZ_PARAMERROR;
-
- file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory;
- file_pos64.num_of_file = file_pos->num_of_file;
- return unzGoToFilePos64(file,&file_pos64);
-}
-
-/*
-// Unzip Helper Functions - should be here?
-///////////////////////////////////////////
-*/
-
-/*
- Read the local header of the current zipfile
- Check the coherency of the local header and info in the end of central
- directory about this file
- store in *piSizeVar the size of extra info in local header
- (filename and size of extra field data)
-*/
-local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar,
- ZPOS64_T * poffset_local_extrafield,
- uInt * psize_local_extrafield)
-{
- uLong uMagic,uData,uFlags;
- uLong size_filename;
- uLong size_extra_field;
- int err=UNZ_OK;
-
- *piSizeVar = 0;
- *poffset_local_extrafield = 0;
- *psize_local_extrafield = 0;
-
- if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +
- s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return UNZ_ERRNO;
-
-
- if (err==UNZ_OK)
- {
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
- err=UNZ_ERRNO;
- else if (uMagic!=0x04034b50)
- err=UNZ_BADZIPFILE;
- }
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
- err=UNZ_ERRNO;
-/*
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))
- err=UNZ_BADZIPFILE;
-*/
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))
- err=UNZ_BADZIPFILE;
-
- if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&
-/* #ifdef HAVE_BZIP2 */
- (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
-/* #endif */
- (s->cur_file_info.compression_method!=Z_DEFLATED))
- err=UNZ_BADZIPFILE;
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */
- err=UNZ_ERRNO;
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0))
- err=UNZ_BADZIPFILE;
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */
- err=UNZ_ERRNO;
- else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0))
- err=UNZ_BADZIPFILE;
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */
- err=UNZ_ERRNO;
- else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0))
- err=UNZ_BADZIPFILE;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))
- err=UNZ_BADZIPFILE;
-
- *piSizeVar += (uInt)size_filename;
-
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)
- err=UNZ_ERRNO;
- *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +
- SIZEZIPLOCALHEADER + size_filename;
- *psize_local_extrafield = (uInt)size_extra_field;
-
- *piSizeVar += (uInt)size_extra_field;
-
- return err;
-}
-
-/*
- Open for reading data the current file in the zipfile.
- If there is no error and the file is opened, the return value is UNZ_OK.
-*/
-extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,
- int* level, int raw, const char* password)
-{
- int err=UNZ_OK;
- uInt iSizeVar;
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- ZPOS64_T offset_local_extrafield; /* offset of the local extra field */
- uInt size_local_extrafield; /* size of the local extra field */
-# ifndef NOUNCRYPT
- char source[12];
-# else
- if (password != NULL)
- return UNZ_PARAMERROR;
-# endif
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- if (!s->current_file_ok)
- return UNZ_PARAMERROR;
-
- if (s->pfile_in_zip_read != NULL)
- unzCloseCurrentFile(file);
-
- if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
- return UNZ_BADZIPFILE;
-
- pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s));
- if (pfile_in_zip_read_info==NULL)
- return UNZ_INTERNALERROR;
-
- pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE);
- pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield;
- pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield;
- pfile_in_zip_read_info->pos_local_extrafield=0;
- pfile_in_zip_read_info->raw=raw;
-
- if (pfile_in_zip_read_info->read_buffer==NULL)
- {
- TRYFREE(pfile_in_zip_read_info);
- return UNZ_INTERNALERROR;
- }
-
- pfile_in_zip_read_info->stream_initialised=0;
-
- if (method!=NULL)
- *method = (int)s->cur_file_info.compression_method;
-
- if (level!=NULL)
- {
- *level = 6;
- switch (s->cur_file_info.flag & 0x06)
- {
- case 6 : *level = 1; break;
- case 4 : *level = 2; break;
- case 2 : *level = 9; break;
- }
- }
-
- if ((s->cur_file_info.compression_method!=0) &&
-/* #ifdef HAVE_BZIP2 */
- (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
-/* #endif */
- (s->cur_file_info.compression_method!=Z_DEFLATED))
-
- err=UNZ_BADZIPFILE;
-
- pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
- pfile_in_zip_read_info->crc32=0;
- pfile_in_zip_read_info->total_out_64=0;
- pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method;
- pfile_in_zip_read_info->filestream=s->filestream;
- pfile_in_zip_read_info->z_filefunc=s->z_filefunc;
- pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
-
- pfile_in_zip_read_info->stream.total_out = 0;
-
- if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw))
- {
-#ifdef HAVE_BZIP2
- pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0;
- pfile_in_zip_read_info->bstream.bzfree = (free_func)0;
- pfile_in_zip_read_info->bstream.opaque = (voidpf)0;
- pfile_in_zip_read_info->bstream.state = (voidpf)0;
-
- pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
- pfile_in_zip_read_info->stream.zfree = (free_func)0;
- pfile_in_zip_read_info->stream.opaque = (voidpf)0;
- pfile_in_zip_read_info->stream.next_in = (voidpf)0;
- pfile_in_zip_read_info->stream.avail_in = 0;
-
- err=BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0);
- if (err == Z_OK)
- pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED;
- else
- {
- TRYFREE(pfile_in_zip_read_info);
- return err;
- }
-#else
- pfile_in_zip_read_info->raw=1;
-#endif
- }
- else if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw))
- {
- pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
- pfile_in_zip_read_info->stream.zfree = (free_func)0;
- pfile_in_zip_read_info->stream.opaque = (voidpf)0;
- pfile_in_zip_read_info->stream.next_in = 0;
- pfile_in_zip_read_info->stream.avail_in = 0;
-
- err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
- if (err == Z_OK)
- pfile_in_zip_read_info->stream_initialised=Z_DEFLATED;
- else
- {
- TRYFREE(pfile_in_zip_read_info);
- return err;
- }
- /* windowBits is passed < 0 to tell that there is no zlib header.
- * Note that in this case inflate *requires* an extra "dummy" byte
- * after the compressed stream in order to complete decompression and
- * return Z_STREAM_END.
- * In unzip, i don't wait absolutely Z_STREAM_END because I known the
- * size of both compressed and uncompressed data
- */
- }
- pfile_in_zip_read_info->rest_read_compressed =
- s->cur_file_info.compressed_size ;
- pfile_in_zip_read_info->rest_read_uncompressed =
- s->cur_file_info.uncompressed_size ;
-
-
- pfile_in_zip_read_info->pos_in_zipfile =
- s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER +
- iSizeVar;
-
- pfile_in_zip_read_info->stream.avail_in = (uInt)0;
-
- s->pfile_in_zip_read = pfile_in_zip_read_info;
- s->encrypted = 0;
-
-# ifndef NOUNCRYPT
- if (password != NULL)
- {
- int i;
- s->pcrc_32_tab = get_crc_table();
- init_keys(password,s->keys,s->pcrc_32_tab);
- if (ZSEEK64(s->z_filefunc, s->filestream,
- s->pfile_in_zip_read->pos_in_zipfile +
- s->pfile_in_zip_read->byte_before_the_zipfile,
- SEEK_SET)!=0)
- return UNZ_INTERNALERROR;
- if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12)
- return UNZ_INTERNALERROR;
-
- for (i = 0; i<12; i++)
- zdecode(s->keys,s->pcrc_32_tab,source[i]);
-
- s->pfile_in_zip_read->pos_in_zipfile+=12;
- s->encrypted=1;
- }
-# endif
-
-
- return UNZ_OK;
-}
-
-extern int ZEXPORT unzOpenCurrentFile (unzFile file)
-{
- return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
-}
-
-extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password)
-{
- return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
-}
-
-extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw)
-{
- return unzOpenCurrentFile3(file, method, level, raw, NULL);
-}
-
-/** Addition for GDAL : START */
-
-extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file)
-{
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- s=(unz64_s*)file;
- if (file==NULL)
- return 0; //UNZ_PARAMERROR;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
- if (pfile_in_zip_read_info==NULL)
- return 0; //UNZ_PARAMERROR;
- return pfile_in_zip_read_info->pos_in_zipfile +
- pfile_in_zip_read_info->byte_before_the_zipfile;
-}
-
-/** Addition for GDAL : END */
-
-/*
- Read bytes from the current file.
- buf contain buffer where data must be copied
- len the size of buf.
-
- return the number of byte copied if somes bytes are copied
- return 0 if the end of file was reached
- return <0 with error code if there is an error
- (UNZ_ERRNO for IO error, or zLib error for uncompress error)
-*/
-extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len)
-{
- int err=UNZ_OK;
- uInt iRead = 0;
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
-
- if (pfile_in_zip_read_info->read_buffer == NULL)
- return UNZ_END_OF_LIST_OF_FILE;
- if (len==0)
- return 0;
-
- pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
-
- pfile_in_zip_read_info->stream.avail_out = (uInt)len;
-
- if ((len>pfile_in_zip_read_info->rest_read_uncompressed) &&
- (!(pfile_in_zip_read_info->raw)))
- pfile_in_zip_read_info->stream.avail_out =
- (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
-
- if ((len>pfile_in_zip_read_info->rest_read_compressed+
- pfile_in_zip_read_info->stream.avail_in) &&
- (pfile_in_zip_read_info->raw))
- pfile_in_zip_read_info->stream.avail_out =
- (uInt)pfile_in_zip_read_info->rest_read_compressed+
- pfile_in_zip_read_info->stream.avail_in;
-
- while (pfile_in_zip_read_info->stream.avail_out>0)
- {
- if ((pfile_in_zip_read_info->stream.avail_in==0) &&
- (pfile_in_zip_read_info->rest_read_compressed>0))
- {
- uInt uReadThis = UNZ_BUFSIZE;
- if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
- uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
- if (uReadThis == 0)
- return UNZ_EOF;
- if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
- pfile_in_zip_read_info->filestream,
- pfile_in_zip_read_info->pos_in_zipfile +
- pfile_in_zip_read_info->byte_before_the_zipfile,
- ZLIB_FILEFUNC_SEEK_SET)!=0)
- return UNZ_ERRNO;
- if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
- pfile_in_zip_read_info->filestream,
- pfile_in_zip_read_info->read_buffer,
- uReadThis)!=uReadThis)
- return UNZ_ERRNO;
-
-
-# ifndef NOUNCRYPT
- if(s->encrypted)
- {
- uInt i;
- for(i=0;i<uReadThis;i++)
- pfile_in_zip_read_info->read_buffer[i] =
- zdecode(s->keys,s->pcrc_32_tab,
- pfile_in_zip_read_info->read_buffer[i]);
- }
-# endif
-
-
- pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
-
- pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
-
- pfile_in_zip_read_info->stream.next_in =
- (Bytef*)pfile_in_zip_read_info->read_buffer;
- pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
- }
-
- if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
- {
- uInt uDoCopy,i ;
-
- if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
- (pfile_in_zip_read_info->rest_read_compressed == 0))
- return (iRead==0) ? UNZ_EOF : iRead;
-
- if (pfile_in_zip_read_info->stream.avail_out <
- pfile_in_zip_read_info->stream.avail_in)
- uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
- else
- uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
-
- for (i=0;i<uDoCopy;i++)
- *(pfile_in_zip_read_info->stream.next_out+i) =
- *(pfile_in_zip_read_info->stream.next_in+i);
-
- pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy;
-
- pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
- pfile_in_zip_read_info->stream.next_out,
- uDoCopy);
- pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
- pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
- pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
- pfile_in_zip_read_info->stream.next_out += uDoCopy;
- pfile_in_zip_read_info->stream.next_in += uDoCopy;
- pfile_in_zip_read_info->stream.total_out += uDoCopy;
- iRead += uDoCopy;
- }
- else if (pfile_in_zip_read_info->compression_method==Z_BZIP2ED)
- {
-#ifdef HAVE_BZIP2
- uLong uTotalOutBefore,uTotalOutAfter;
- const Bytef *bufBefore;
- uLong uOutThis;
-
- pfile_in_zip_read_info->bstream.next_in = (char*)pfile_in_zip_read_info->stream.next_in;
- pfile_in_zip_read_info->bstream.avail_in = pfile_in_zip_read_info->stream.avail_in;
- pfile_in_zip_read_info->bstream.total_in_lo32 = pfile_in_zip_read_info->stream.total_in;
- pfile_in_zip_read_info->bstream.total_in_hi32 = 0;
- pfile_in_zip_read_info->bstream.next_out = (char*)pfile_in_zip_read_info->stream.next_out;
- pfile_in_zip_read_info->bstream.avail_out = pfile_in_zip_read_info->stream.avail_out;
- pfile_in_zip_read_info->bstream.total_out_lo32 = pfile_in_zip_read_info->stream.total_out;
- pfile_in_zip_read_info->bstream.total_out_hi32 = 0;
-
- uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32;
- bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out;
-
- err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream);
-
- uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32;
- uOutThis = uTotalOutAfter-uTotalOutBefore;
-
- pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
-
- pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,bufBefore, (uInt)(uOutThis));
- pfile_in_zip_read_info->rest_read_uncompressed -= uOutThis;
- iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
-
- pfile_in_zip_read_info->stream.next_in = (Bytef*)pfile_in_zip_read_info->bstream.next_in;
- pfile_in_zip_read_info->stream.avail_in = pfile_in_zip_read_info->bstream.avail_in;
- pfile_in_zip_read_info->stream.total_in = pfile_in_zip_read_info->bstream.total_in_lo32;
- pfile_in_zip_read_info->stream.next_out = (Bytef*)pfile_in_zip_read_info->bstream.next_out;
- pfile_in_zip_read_info->stream.avail_out = pfile_in_zip_read_info->bstream.avail_out;
- pfile_in_zip_read_info->stream.total_out = pfile_in_zip_read_info->bstream.total_out_lo32;
-
- if (err==BZ_STREAM_END)
- return (iRead==0) ? UNZ_EOF : iRead;
- if (err!=BZ_OK)
- break;
-#endif
- } // end Z_BZIP2ED
- else
- {
- ZPOS64_T uTotalOutBefore,uTotalOutAfter;
- const Bytef *bufBefore;
- ZPOS64_T uOutThis;
- int flush=Z_SYNC_FLUSH;
-
- uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
- bufBefore = pfile_in_zip_read_info->stream.next_out;
-
- /*
- if ((pfile_in_zip_read_info->rest_read_uncompressed ==
- pfile_in_zip_read_info->stream.avail_out) &&
- (pfile_in_zip_read_info->rest_read_compressed == 0))
- flush = Z_FINISH;
- */
- err=inflate(&pfile_in_zip_read_info->stream,flush);
-
- if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))
- err = Z_DATA_ERROR;
-
- uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
- uOutThis = uTotalOutAfter-uTotalOutBefore;
-
- pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
-
- pfile_in_zip_read_info->crc32 =
- crc32(pfile_in_zip_read_info->crc32,bufBefore,
- (uInt)(uOutThis));
-
- pfile_in_zip_read_info->rest_read_uncompressed -=
- uOutThis;
-
- iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
-
- if (err==Z_STREAM_END)
- return (iRead==0) ? UNZ_EOF : iRead;
- if (err!=Z_OK)
- break;
- }
- }
-
- if (err==Z_OK)
- return iRead;
- return err;
-}
-
-
-/*
- Give the current position in uncompressed data
-*/
-extern z_off_t ZEXPORT unztell (unzFile file)
-{
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- return (z_off_t)pfile_in_zip_read_info->stream.total_out;
-}
-
-extern ZPOS64_T ZEXPORT unztell64 (unzFile file)
-{
-
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return (ZPOS64_T)-1;
- s=(unz64_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return (ZPOS64_T)-1;
-
- return pfile_in_zip_read_info->total_out_64;
-}
-
-
-/*
- return 1 if the end of file was reached, 0 elsewhere
-*/
-extern int ZEXPORT unzeof (unzFile file)
-{
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
- return 1;
- else
- return 0;
-}
-
-
-
-/*
-Read extra field from the current file (opened by unzOpenCurrentFile)
-This is the local-header version of the extra field (sometimes, there is
-more info in the local-header version than in the central-header)
-
- if buf==NULL, it return the size of the local extra field that can be read
-
- if buf!=NULL, len is the size of the buffer, the extra header is copied in
- buf.
- the return value is the number of bytes copied in buf, or (if <0)
- the error code
-*/
-extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len)
-{
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- uInt read_now;
- ZPOS64_T size_to_read;
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- size_to_read = (pfile_in_zip_read_info->size_local_extrafield -
- pfile_in_zip_read_info->pos_local_extrafield);
-
- if (buf==NULL)
- return (int)size_to_read;
-
- if (len>size_to_read)
- read_now = (uInt)size_to_read;
- else
- read_now = (uInt)len ;
-
- if (read_now==0)
- return 0;
-
- if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
- pfile_in_zip_read_info->filestream,
- pfile_in_zip_read_info->offset_local_extrafield +
- pfile_in_zip_read_info->pos_local_extrafield,
- ZLIB_FILEFUNC_SEEK_SET)!=0)
- return UNZ_ERRNO;
-
- if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
- pfile_in_zip_read_info->filestream,
- buf,read_now)!=read_now)
- return UNZ_ERRNO;
-
- return (int)read_now;
-}
-
-/*
- Close the file in zip opened with unzOpenCurrentFile
- Return UNZ_CRCERROR if all the file was read but the CRC is not good
-*/
-extern int ZEXPORT unzCloseCurrentFile (unzFile file)
-{
- int err=UNZ_OK;
-
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
-
- if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) &&
- (!pfile_in_zip_read_info->raw))
- {
- if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
- err=UNZ_CRCERROR;
- }
-
-
- TRYFREE(pfile_in_zip_read_info->read_buffer);
- pfile_in_zip_read_info->read_buffer = NULL;
- if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED)
- inflateEnd(&pfile_in_zip_read_info->stream);
-#ifdef HAVE_BZIP2
- else if (pfile_in_zip_read_info->stream_initialised == Z_BZIP2ED)
- BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream);
-#endif
-
-
- pfile_in_zip_read_info->stream_initialised = 0;
- TRYFREE(pfile_in_zip_read_info);
-
- s->pfile_in_zip_read=NULL;
-
- return err;
-}
-
-
-/*
- Get the global comment string of the ZipFile, in the szComment buffer.
- uSizeBuf is the size of the szComment buffer.
- return the number of byte copied or an error code <0
-*/
-extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf)
-{
- unz64_s* s;
- uLong uReadThis ;
- if (file==NULL)
- return (int)UNZ_PARAMERROR;
- s=(unz64_s*)file;
-
- uReadThis = uSizeBuf;
- if (uReadThis>s->gi.size_comment)
- uReadThis = s->gi.size_comment;
-
- if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return UNZ_ERRNO;
-
- if (uReadThis>0)
- {
- *szComment='\0';
- if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
- return UNZ_ERRNO;
- }
-
- if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
- *(szComment+s->gi.size_comment)='\0';
- return (int)uReadThis;
-}
-
-/* Additions by RX '2004 */
-extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file)
-{
- unz64_s* s;
-
- if (file==NULL)
- return 0; //UNZ_PARAMERROR;
- s=(unz64_s*)file;
- if (!s->current_file_ok)
- return 0;
- if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff)
- if (s->num_file==s->gi.number_entry)
- return 0;
- return s->pos_in_central_dir;
-}
-
-extern uLong ZEXPORT unzGetOffset (unzFile file)
-{
- ZPOS64_T offset64;
-
- if (file==NULL)
- return 0; //UNZ_PARAMERROR;
- offset64 = unzGetOffset64(file);
- return (uLong)offset64;
-}
-
-extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos)
-{
- unz64_s* s;
- int err;
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
-
- s->pos_in_central_dir = pos;
- s->num_file = s->gi.number_entry; /* hack */
- err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
- &s->cur_file_info_internal,
- NULL,0,NULL,0,NULL,0);
- s->current_file_ok = (err == UNZ_OK);
- return err;
-}
-
-extern int ZEXPORT unzSetOffset (unzFile file, uLong pos)
-{
- return unzSetOffset64(file,pos);
-}
+++ /dev/null
-/* unzip.h -- IO for uncompress .zip files using zlib
- Version 1.1, February 14h, 2010
- part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications of Unzip for Zip64
- Copyright (C) 2007-2008 Even Rouault
-
- Modifications for Zip64 support on both zip and unzip
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-
- For more info read MiniZip_info.txt
-
- ---------------------------------------------------------------------------------
-
- Condition of use and distribution are the same than zlib :
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- ---------------------------------------------------------------------------------
-
- Changes
-
- See header of unzip64.c
-
-*/
-
-#ifndef _unz64_H
-#define _unz64_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef _ZLIB_H
-#include "zlib.h"
-#endif
-
-#ifndef _ZLIBIOAPI_H
-#include "ioapi.h"
-#endif
-
-#ifdef HAVE_BZIP2
-#include "bzlib.h"
-#endif
-
-#define Z_BZIP2ED 12
-
-#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
-/* like the STRICT of WIN32, we define a pointer that cannot be converted
- from (void*) without cast */
-typedef struct TagunzFile__ { int unused; } unzFile__;
-typedef unzFile__ *unzFile;
-#else
-typedef voidp unzFile;
-#endif
-
-
-#define UNZ_OK (0)
-#define UNZ_END_OF_LIST_OF_FILE (-100)
-#define UNZ_ERRNO (Z_ERRNO)
-#define UNZ_EOF (0)
-#define UNZ_PARAMERROR (-102)
-#define UNZ_BADZIPFILE (-103)
-#define UNZ_INTERNALERROR (-104)
-#define UNZ_CRCERROR (-105)
-
-/* tm_unz contain date/time info */
-typedef struct tm_unz_s
-{
- uInt tm_sec; /* seconds after the minute - [0,59] */
- uInt tm_min; /* minutes after the hour - [0,59] */
- uInt tm_hour; /* hours since midnight - [0,23] */
- uInt tm_mday; /* day of the month - [1,31] */
- uInt tm_mon; /* months since January - [0,11] */
- uInt tm_year; /* years - [1980..2044] */
-} tm_unz;
-
-/* unz_global_info structure contain global data about the ZIPfile
- These data comes from the end of central dir */
-typedef struct unz_global_info64_s
-{
- ZPOS64_T number_entry; /* total number of entries in
- the central dir on this disk */
- uLong size_comment; /* size of the global comment of the zipfile */
-} unz_global_info64;
-
-typedef struct unz_global_info_s
-{
- uLong number_entry; /* total number of entries in
- the central dir on this disk */
- uLong size_comment; /* size of the global comment of the zipfile */
-} unz_global_info;
-
-/* unz_file_info contain information about a file in the zipfile */
-typedef struct unz_file_info64_s
-{
- uLong version; /* version made by 2 bytes */
- uLong version_needed; /* version needed to extract 2 bytes */
- uLong flag; /* general purpose bit flag 2 bytes */
- uLong compression_method; /* compression method 2 bytes */
- uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
- uLong crc; /* crc-32 4 bytes */
- ZPOS64_T compressed_size; /* compressed size 8 bytes */
- ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */
- uLong size_filename; /* filename length 2 bytes */
- uLong size_file_extra; /* extra field length 2 bytes */
- uLong size_file_comment; /* file comment length 2 bytes */
-
- uLong disk_num_start; /* disk number start 2 bytes */
- uLong internal_fa; /* internal file attributes 2 bytes */
- uLong external_fa; /* external file attributes 4 bytes */
-
- tm_unz tmu_date;
-} unz_file_info64;
-
-typedef struct unz_file_info_s
-{
- uLong version; /* version made by 2 bytes */
- uLong version_needed; /* version needed to extract 2 bytes */
- uLong flag; /* general purpose bit flag 2 bytes */
- uLong compression_method; /* compression method 2 bytes */
- uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
- uLong crc; /* crc-32 4 bytes */
- uLong compressed_size; /* compressed size 4 bytes */
- uLong uncompressed_size; /* uncompressed size 4 bytes */
- uLong size_filename; /* filename length 2 bytes */
- uLong size_file_extra; /* extra field length 2 bytes */
- uLong size_file_comment; /* file comment length 2 bytes */
-
- uLong disk_num_start; /* disk number start 2 bytes */
- uLong internal_fa; /* internal file attributes 2 bytes */
- uLong external_fa; /* external file attributes 4 bytes */
-
- tm_unz tmu_date;
-} unz_file_info;
-
-extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
- const char* fileName2,
- int iCaseSensitivity));
-/*
- Compare two filename (fileName1,fileName2).
- If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
- If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
- or strcasecmp)
- If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
- (like 1 on Unix, 2 on Windows)
-*/
-
-
-extern unzFile ZEXPORT unzOpen OF((const char *path));
-extern unzFile ZEXPORT unzOpen64 OF((const void *path));
-/*
- Open a Zip file. path contain the full pathname (by example,
- on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
- "zlib/zlib113.zip".
- If the zipfile cannot be opened (file don't exist or in not valid), the
- return value is NULL.
- Else, the return value is a unzFile Handle, usable with other function
- of this unzip package.
- the "64" function take a const void* pointer, because the path is just the
- value passed to the open64_file_func callback.
- Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path
- is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char*
- does not describe the reality
-*/
-
-
-extern unzFile ZEXPORT unzOpen2 OF((const char *path,
- zlib_filefunc_def* pzlib_filefunc_def));
-/*
- Open a Zip file, like unzOpen, but provide a set of file low level API
- for read/write the zip file (see ioapi.h)
-*/
-
-extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
- zlib_filefunc64_def* pzlib_filefunc_def));
-/*
- Open a Zip file, like unz64Open, but provide a set of file low level API
- for read/write the zip file (see ioapi.h)
-*/
-
-extern int ZEXPORT unzClose OF((unzFile file));
-/*
- Close a ZipFile opened with unzOpen.
- If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
- these files MUST be closed with unzCloseCurrentFile before call unzClose.
- return UNZ_OK if there is no problem. */
-
-extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
- unz_global_info *pglobal_info));
-
-extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file,
- unz_global_info64 *pglobal_info));
-/*
- Write info about the ZipFile in the *pglobal_info structure.
- No preparation of the structure is needed
- return UNZ_OK if there is no problem. */
-
-
-extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
- char *szComment,
- uLong uSizeBuf));
-/*
- Get the global comment string of the ZipFile, in the szComment buffer.
- uSizeBuf is the size of the szComment buffer.
- return the number of byte copied or an error code <0
-*/
-
-
-/***************************************************************************/
-/* Unzip package allow you browse the directory of the zipfile */
-
-extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
-/*
- Set the current file of the zipfile to the first file.
- return UNZ_OK if there is no problem
-*/
-
-extern int ZEXPORT unzGoToNextFile OF((unzFile file));
-/*
- Set the current file of the zipfile to the next file.
- return UNZ_OK if there is no problem
- return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
-*/
-
-extern int ZEXPORT unzLocateFile OF((unzFile file,
- const char *szFileName,
- int iCaseSensitivity));
-/*
- Try locate the file szFileName in the zipfile.
- For the iCaseSensitivity signification, see unzStringFileNameCompare
-
- return value :
- UNZ_OK if the file is found. It becomes the current file.
- UNZ_END_OF_LIST_OF_FILE if the file is not found
-*/
-
-
-/* ****************************************** */
-/* Ryan supplied functions */
-/* unz_file_info contain information about a file in the zipfile */
-typedef struct unz_file_pos_s
-{
- uLong pos_in_zip_directory; /* offset in zip file directory */
- uLong num_of_file; /* # of file */
-} unz_file_pos;
-
-extern int ZEXPORT unzGetFilePos(
- unzFile file,
- unz_file_pos* file_pos);
-
-extern int ZEXPORT unzGoToFilePos(
- unzFile file,
- unz_file_pos* file_pos);
-
-typedef struct unz64_file_pos_s
-{
- ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */
- ZPOS64_T num_of_file; /* # of file */
-} unz64_file_pos;
-
-extern int ZEXPORT unzGetFilePos64(
- unzFile file,
- unz64_file_pos* file_pos);
-
-extern int ZEXPORT unzGoToFilePos64(
- unzFile file,
- const unz64_file_pos* file_pos);
-
-/* ****************************************** */
-
-extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file,
- unz_file_info64 *pfile_info,
- char *szFileName,
- uLong fileNameBufferSize,
- void *extraField,
- uLong extraFieldBufferSize,
- char *szComment,
- uLong commentBufferSize));
-
-extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
- unz_file_info *pfile_info,
- char *szFileName,
- uLong fileNameBufferSize,
- void *extraField,
- uLong extraFieldBufferSize,
- char *szComment,
- uLong commentBufferSize));
-/*
- Get Info about the current file
- if pfile_info!=NULL, the *pfile_info structure will contain somes info about
- the current file
- if szFileName!=NULL, the filemane string will be copied in szFileName
- (fileNameBufferSize is the size of the buffer)
- if extraField!=NULL, the extra field information will be copied in extraField
- (extraFieldBufferSize is the size of the buffer).
- This is the Central-header version of the extra field
- if szComment!=NULL, the comment string of the file will be copied in szComment
- (commentBufferSize is the size of the buffer)
-*/
-
-
-/** Addition for GDAL : START */
-
-extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file));
-
-/** Addition for GDAL : END */
-
-
-/***************************************************************************/
-/* for reading the content of the current zipfile, you can open it, read data
- from it, and close it (you can close it before reading all the file)
- */
-
-extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
-/*
- Open for reading data the current file in the zipfile.
- If there is no error, the return value is UNZ_OK.
-*/
-
-extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file,
- const char* password));
-/*
- Open for reading data the current file in the zipfile.
- password is a crypting password
- If there is no error, the return value is UNZ_OK.
-*/
-
-extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file,
- int* method,
- int* level,
- int raw));
-/*
- Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
- if raw==1
- *method will receive method of compression, *level will receive level of
- compression
- note : you can set level parameter as NULL (if you did not want known level,
- but you CANNOT set method parameter as NULL
-*/
-
-extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file,
- int* method,
- int* level,
- int raw,
- const char* password));
-/*
- Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
- if raw==1
- *method will receive method of compression, *level will receive level of
- compression
- note : you can set level parameter as NULL (if you did not want known level,
- but you CANNOT set method parameter as NULL
-*/
-
-
-extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
-/*
- Close the file in zip opened with unzOpenCurrentFile
- Return UNZ_CRCERROR if all the file was read but the CRC is not good
-*/
-
-extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
- voidp buf,
- unsigned len));
-/*
- Read bytes from the current file (opened by unzOpenCurrentFile)
- buf contain buffer where data must be copied
- len the size of buf.
-
- return the number of byte copied if somes bytes are copied
- return 0 if the end of file was reached
- return <0 with error code if there is an error
- (UNZ_ERRNO for IO error, or zLib error for uncompress error)
-*/
-
-extern z_off_t ZEXPORT unztell OF((unzFile file));
-
-extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file));
-/*
- Give the current position in uncompressed data
-*/
-
-extern int ZEXPORT unzeof OF((unzFile file));
-/*
- return 1 if the end of file was reached, 0 elsewhere
-*/
-
-extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
- voidp buf,
- unsigned len));
-/*
- Read extra field from the current file (opened by unzOpenCurrentFile)
- This is the local-header version of the extra field (sometimes, there is
- more info in the local-header version than in the central-header)
-
- if buf==NULL, it return the size of the local extra field
-
- if buf!=NULL, len is the size of the buffer, the extra header is copied in
- buf.
- the return value is the number of bytes copied in buf, or (if <0)
- the error code
-*/
-
-/***************************************************************************/
-
-/* Get the current file offset */
-extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
-extern uLong ZEXPORT unzGetOffset (unzFile file);
-
-/* Set the current file offset */
-extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
-extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
-
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _unz64_H */
+++ /dev/null
-/* zip.c -- IO on .zip files using zlib
- Version 1.1, February 14h, 2010
- part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications for Zip64 support
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-
- For more info read MiniZip_info.txt
-
- Changes
- Oct-2009 - Mathias Svensson - Remove old C style function prototypes
- Oct-2009 - Mathias Svensson - Added Zip64 Support when creating new file archives
- Oct-2009 - Mathias Svensson - Did some code cleanup and refactoring to get better overview of some functions.
- Oct-2009 - Mathias Svensson - Added zipRemoveExtraInfoBlock to strip extra field data from its ZIP64 data
- It is used when recreting zip archive with RAW when deleting items from a zip.
- ZIP64 data is automaticly added to items that needs it, and existing ZIP64 data need to be removed.
- Oct-2009 - Mathias Svensson - Added support for BZIP2 as compression mode (bzip2 lib is required)
- Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
-
-*/
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include "zlib.h"
-#include "zip.h"
-
-#ifdef STDC
-# include <stddef.h>
-# include <string.h>
-# include <stdlib.h>
-#endif
-#ifdef NO_ERRNO_H
- extern int errno;
-#else
-# include <errno.h>
-#endif
-
-
-#ifndef local
-# define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-#ifndef VERSIONMADEBY
-# define VERSIONMADEBY (0x0) /* platform depedent */
-#endif
-
-#ifndef Z_BUFSIZE
-#define Z_BUFSIZE (64*1024) //(16384)
-#endif
-
-#ifndef Z_MAXFILENAMEINZIP
-#define Z_MAXFILENAMEINZIP (256)
-#endif
-
-#ifndef ALLOC
-# define ALLOC(size) (malloc(size))
-#endif
-#ifndef TRYFREE
-# define TRYFREE(p) {if (p) free(p);}
-#endif
-
-/*
-#define SIZECENTRALDIRITEM (0x2e)
-#define SIZEZIPLOCALHEADER (0x1e)
-*/
-
-/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
-
-
-// NOT sure that this work on ALL platform
-#define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32))
-
-#ifndef SEEK_CUR
-#define SEEK_CUR 1
-#endif
-
-#ifndef SEEK_END
-#define SEEK_END 2
-#endif
-
-#ifndef SEEK_SET
-#define SEEK_SET 0
-#endif
-
-#ifndef DEF_MEM_LEVEL
-#if MAX_MEM_LEVEL >= 8
-# define DEF_MEM_LEVEL 8
-#else
-# define DEF_MEM_LEVEL MAX_MEM_LEVEL
-#endif
-#endif
-const char zip_copyright[] =" zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
-
-
-#define SIZEDATA_INDATABLOCK (4096-(4*4))
-
-#define LOCALHEADERMAGIC (0x04034b50)
-#define CENTRALHEADERMAGIC (0x02014b50)
-#define ENDHEADERMAGIC (0x06054b50)
-#define ZIP64ENDHEADERMAGIC (0x6064b50)
-#define ZIP64ENDLOCHEADERMAGIC (0x7064b50)
-
-#define FLAG_LOCALHEADER_OFFSET (0x06)
-#define CRC_LOCALHEADER_OFFSET (0x0e)
-
-#define SIZECENTRALHEADER (0x2e) /* 46 */
-
-typedef struct linkedlist_datablock_internal_s
-{
- struct linkedlist_datablock_internal_s* next_datablock;
- uLong avail_in_this_block;
- uLong filled_in_this_block;
- uLong unused; /* for future use and alignement */
- unsigned char data[SIZEDATA_INDATABLOCK];
-} linkedlist_datablock_internal;
-
-typedef struct linkedlist_data_s
-{
- linkedlist_datablock_internal* first_block;
- linkedlist_datablock_internal* last_block;
-} linkedlist_data;
-
-
-typedef struct
-{
- z_stream stream; /* zLib stream structure for inflate */
-#ifdef HAVE_BZIP2
- bz_stream bstream; /* bzLib stream structure for bziped */
-#endif
-
- int stream_initialised; /* 1 is stream is initialised */
- uInt pos_in_buffered_data; /* last written byte in buffered_data */
-
- ZPOS64_T pos_local_header; /* offset of the local header of the file
- currenty writing */
- char* central_header; /* central header data for the current file */
- uLong size_centralExtra;
- uLong size_centralheader; /* size of the central header for cur file */
- uLong size_centralExtraFree; /* Extra bytes allocated to the centralheader but that are not used */
- uLong flag; /* flag of the file currently writing */
-
- int method; /* compression method of file currenty wr.*/
- int raw; /* 1 for directly writing raw data */
- Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/
- uLong dosDate;
- uLong crc32;
- int encrypt;
- int zip64; /* Add ZIP64 extened information in the extra field */
- ZPOS64_T pos_zip64extrainfo;
- ZPOS64_T totalCompressedData;
- ZPOS64_T totalUncompressedData;
-#ifndef NOCRYPT
- unsigned long keys[3]; /* keys defining the pseudo-random sequence */
- const z_crc_t* pcrc_32_tab;
- int crypt_header_size;
-#endif
-} curfile64_info;
-
-typedef struct
-{
- zlib_filefunc64_32_def z_filefunc;
- voidpf filestream; /* io structore of the zipfile */
- linkedlist_data central_dir;/* datablock with central dir in construction*/
- int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/
- curfile64_info ci; /* info on the file curretly writing */
-
- ZPOS64_T begin_pos; /* position of the beginning of the zipfile */
- ZPOS64_T add_position_when_writting_offset;
- ZPOS64_T number_entry;
-
-#ifndef NO_ADDFILEINEXISTINGZIP
- char *globalcomment;
-#endif
-
-} zip64_internal;
-
-
-#ifndef NOCRYPT
-#define INCLUDECRYPTINGCODE_IFCRYPTALLOWED
-#include "crypt.h"
-#endif
-
-local linkedlist_datablock_internal* allocate_new_datablock()
-{
- linkedlist_datablock_internal* ldi;
- ldi = (linkedlist_datablock_internal*)
- ALLOC(sizeof(linkedlist_datablock_internal));
- if (ldi!=NULL)
- {
- ldi->next_datablock = NULL ;
- ldi->filled_in_this_block = 0 ;
- ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ;
- }
- return ldi;
-}
-
-local void free_datablock(linkedlist_datablock_internal* ldi)
-{
- while (ldi!=NULL)
- {
- linkedlist_datablock_internal* ldinext = ldi->next_datablock;
- TRYFREE(ldi);
- ldi = ldinext;
- }
-}
-
-local void init_linkedlist(linkedlist_data* ll)
-{
- ll->first_block = ll->last_block = NULL;
-}
-
-local void free_linkedlist(linkedlist_data* ll)
-{
- free_datablock(ll->first_block);
- ll->first_block = ll->last_block = NULL;
-}
-
-
-local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len)
-{
- linkedlist_datablock_internal* ldi;
- const unsigned char* from_copy;
-
- if (ll==NULL)
- return ZIP_INTERNALERROR;
-
- if (ll->last_block == NULL)
- {
- ll->first_block = ll->last_block = allocate_new_datablock();
- if (ll->first_block == NULL)
- return ZIP_INTERNALERROR;
- }
-
- ldi = ll->last_block;
- from_copy = (unsigned char*)buf;
-
- while (len>0)
- {
- uInt copy_this;
- uInt i;
- unsigned char* to_copy;
-
- if (ldi->avail_in_this_block==0)
- {
- ldi->next_datablock = allocate_new_datablock();
- if (ldi->next_datablock == NULL)
- return ZIP_INTERNALERROR;
- ldi = ldi->next_datablock ;
- ll->last_block = ldi;
- }
-
- if (ldi->avail_in_this_block < len)
- copy_this = (uInt)ldi->avail_in_this_block;
- else
- copy_this = (uInt)len;
-
- to_copy = &(ldi->data[ldi->filled_in_this_block]);
-
- for (i=0;i<copy_this;i++)
- *(to_copy+i)=*(from_copy+i);
-
- ldi->filled_in_this_block += copy_this;
- ldi->avail_in_this_block -= copy_this;
- from_copy += copy_this ;
- len -= copy_this;
- }
- return ZIP_OK;
-}
-
-
-
-/****************************************************************************/
-
-#ifndef NO_ADDFILEINEXISTINGZIP
-/* ===========================================================================
- Inputs a long in LSB order to the given file
- nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T)
-*/
-
-local int zip64local_putValue OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte));
-local int zip64local_putValue (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte)
-{
- unsigned char buf[8];
- int n;
- for (n = 0; n < nbByte; n++)
- {
- buf[n] = (unsigned char)(x & 0xff);
- x >>= 8;
- }
- if (x != 0)
- { /* data overflow - hack for ZIP64 (X Roche) */
- for (n = 0; n < nbByte; n++)
- {
- buf[n] = 0xff;
- }
- }
-
- if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte)
- return ZIP_ERRNO;
- else
- return ZIP_OK;
-}
-
-local void zip64local_putValue_inmemory OF((void* dest, ZPOS64_T x, int nbByte));
-local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte)
-{
- unsigned char* buf=(unsigned char*)dest;
- int n;
- for (n = 0; n < nbByte; n++) {
- buf[n] = (unsigned char)(x & 0xff);
- x >>= 8;
- }
-
- if (x != 0)
- { /* data overflow - hack for ZIP64 */
- for (n = 0; n < nbByte; n++)
- {
- buf[n] = 0xff;
- }
- }
-}
-
-/****************************************************************************/
-
-
-local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm)
-{
- uLong year = (uLong)ptm->tm_year;
- if (year>=1980)
- year-=1980;
- else if (year>=80)
- year-=80;
- return
- (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) |
- ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour));
-}
-
-
-/****************************************************************************/
-
-local int zip64local_getByte OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi));
-
-local int zip64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def,voidpf filestream,int* pi)
-{
- unsigned char c;
- int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
- if (err==1)
- {
- *pi = (int)c;
- return ZIP_OK;
- }
- else
- {
- if (ZERROR64(*pzlib_filefunc_def,filestream))
- return ZIP_ERRNO;
- else
- return ZIP_EOF;
- }
-}
-
-
-/* ===========================================================================
- Reads a long in LSB order from the given gz_stream. Sets
-*/
-local int zip64local_getShort OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX));
-
-local int zip64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX)
-{
- uLong x ;
- int i = 0;
- int err;
-
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (uLong)i;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((uLong)i)<<8;
-
- if (err==ZIP_OK)
- *pX = x;
- else
- *pX = 0;
- return err;
-}
-
-local int zip64local_getLong OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX));
-
-local int zip64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX)
-{
- uLong x ;
- int i = 0;
- int err;
-
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (uLong)i;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((uLong)i)<<8;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((uLong)i)<<16;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((uLong)i)<<24;
-
- if (err==ZIP_OK)
- *pX = x;
- else
- *pX = 0;
- return err;
-}
-
-local int zip64local_getLong64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX));
-
-
-local int zip64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX)
-{
- ZPOS64_T x;
- int i = 0;
- int err;
-
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (ZPOS64_T)i;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((ZPOS64_T)i)<<8;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((ZPOS64_T)i)<<16;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((ZPOS64_T)i)<<24;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((ZPOS64_T)i)<<32;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((ZPOS64_T)i)<<40;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((ZPOS64_T)i)<<48;
-
- if (err==ZIP_OK)
- err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((ZPOS64_T)i)<<56;
-
- if (err==ZIP_OK)
- *pX = x;
- else
- *pX = 0;
-
- return err;
-}
-
-#ifndef BUFREADCOMMENT
-#define BUFREADCOMMENT (0x400)
-#endif
-/*
- Locate the Central directory of a zipfile (at the end, just before
- the global comment)
-*/
-local ZPOS64_T zip64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
-
-local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
-{
- unsigned char* buf;
- ZPOS64_T uSizeFile;
- ZPOS64_T uBackRead;
- ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
- ZPOS64_T uPosFound=0;
-
- if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
- return 0;
-
-
- uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
-
- if (uMaxBack>uSizeFile)
- uMaxBack = uSizeFile;
-
- buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
- if (buf==NULL)
- return 0;
-
- uBackRead = 4;
- while (uBackRead<uMaxBack)
- {
- uLong uReadSize;
- ZPOS64_T uReadPos ;
- int i;
- if (uBackRead+BUFREADCOMMENT>uMaxBack)
- uBackRead = uMaxBack;
- else
- uBackRead+=BUFREADCOMMENT;
- uReadPos = uSizeFile-uBackRead ;
-
- uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
- (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
- if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- break;
-
- if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
- break;
-
- for (i=(int)uReadSize-3; (i--)>0;)
- if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
- ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
- {
- uPosFound = uReadPos+i;
- break;
- }
-
- if (uPosFound!=0)
- break;
- }
- TRYFREE(buf);
- return uPosFound;
-}
-
-/*
-Locate the End of Zip64 Central directory locator and from there find the CD of a zipfile (at the end, just before
-the global comment)
-*/
-local ZPOS64_T zip64local_SearchCentralDir64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
-
-local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
-{
- unsigned char* buf;
- ZPOS64_T uSizeFile;
- ZPOS64_T uBackRead;
- ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
- ZPOS64_T uPosFound=0;
- uLong uL;
- ZPOS64_T relativeOffset;
-
- if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
- return 0;
-
- uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
-
- if (uMaxBack>uSizeFile)
- uMaxBack = uSizeFile;
-
- buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
- if (buf==NULL)
- return 0;
-
- uBackRead = 4;
- while (uBackRead<uMaxBack)
- {
- uLong uReadSize;
- ZPOS64_T uReadPos;
- int i;
- if (uBackRead+BUFREADCOMMENT>uMaxBack)
- uBackRead = uMaxBack;
- else
- uBackRead+=BUFREADCOMMENT;
- uReadPos = uSizeFile-uBackRead ;
-
- uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
- (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
- if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- break;
-
- if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
- break;
-
- for (i=(int)uReadSize-3; (i--)>0;)
- {
- // Signature "0x07064b50" Zip64 end of central directory locater
- if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
- {
- uPosFound = uReadPos+i;
- break;
- }
- }
-
- if (uPosFound!=0)
- break;
- }
-
- TRYFREE(buf);
- if (uPosFound == 0)
- return 0;
-
- /* Zip64 end of central directory locator */
- if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return 0;
-
- /* the signature, already checked */
- if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
- return 0;
-
- /* number of the disk with the start of the zip64 end of central directory */
- if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
- return 0;
- if (uL != 0)
- return 0;
-
- /* relative offset of the zip64 end of central directory record */
- if (zip64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=ZIP_OK)
- return 0;
-
- /* total number of disks */
- if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
- return 0;
- if (uL != 1)
- return 0;
-
- /* Goto Zip64 end of central directory record */
- if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return 0;
-
- /* the signature */
- if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
- return 0;
-
- if (uL != 0x06064b50) // signature of 'Zip64 end of central directory'
- return 0;
-
- return relativeOffset;
-}
-
-int LoadCentralDirectoryRecord(zip64_internal* pziinit)
-{
- int err=ZIP_OK;
- ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
-
- ZPOS64_T size_central_dir; /* size of the central directory */
- ZPOS64_T offset_central_dir; /* offset of start of central directory */
- ZPOS64_T central_pos;
- uLong uL;
-
- uLong number_disk; /* number of the current dist, used for
- spaning ZIP, unsupported, always 0*/
- uLong number_disk_with_CD; /* number the the disk with central dir, used
- for spaning ZIP, unsupported, always 0*/
- ZPOS64_T number_entry;
- ZPOS64_T number_entry_CD; /* total number of entries in
- the central dir
- (same than number_entry on nospan) */
- uLong VersionMadeBy;
- uLong VersionNeeded;
- uLong size_comment;
-
- int hasZIP64Record = 0;
-
- // check first if we find a ZIP64 record
- central_pos = zip64local_SearchCentralDir64(&pziinit->z_filefunc,pziinit->filestream);
- if(central_pos > 0)
- {
- hasZIP64Record = 1;
- }
- else if(central_pos == 0)
- {
- central_pos = zip64local_SearchCentralDir(&pziinit->z_filefunc,pziinit->filestream);
- }
-
-/* disable to allow appending to empty ZIP archive
- if (central_pos==0)
- err=ZIP_ERRNO;
-*/
-
- if(hasZIP64Record)
- {
- ZPOS64_T sizeEndOfCentralDirectory;
- if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0)
- err=ZIP_ERRNO;
-
- /* the signature, already checked */
- if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* size of zip64 end of central directory record */
- if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &sizeEndOfCentralDirectory)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* version made by */
- if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionMadeBy)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* version needed to extract */
- if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionNeeded)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* number of this disk */
- if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* number of the disk with the start of the central directory */
- if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* total number of entries in the central directory on this disk */
- if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &number_entry)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* total number of entries in the central directory */
- if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&number_entry_CD)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0))
- err=ZIP_BADZIPFILE;
-
- /* size of the central directory */
- if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&size_central_dir)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* offset of start of central directory with respect to the
- starting disk number */
- if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&offset_central_dir)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- // TODO..
- // read the comment from the standard central header.
- size_comment = 0;
- }
- else
- {
- // Read End of central Directory info
- if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err=ZIP_ERRNO;
-
- /* the signature, already checked */
- if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* number of this disk */
- if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* number of the disk with the start of the central directory */
- if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* total number of entries in the central dir on this disk */
- number_entry = 0;
- if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
- err=ZIP_ERRNO;
- else
- number_entry = uL;
-
- /* total number of entries in the central dir */
- number_entry_CD = 0;
- if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
- err=ZIP_ERRNO;
- else
- number_entry_CD = uL;
-
- if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0))
- err=ZIP_BADZIPFILE;
-
- /* size of the central directory */
- size_central_dir = 0;
- if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
- err=ZIP_ERRNO;
- else
- size_central_dir = uL;
-
- /* offset of start of central directory with respect to the starting disk number */
- offset_central_dir = 0;
- if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
- err=ZIP_ERRNO;
- else
- offset_central_dir = uL;
-
-
- /* zipfile global comment length */
- if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &size_comment)!=ZIP_OK)
- err=ZIP_ERRNO;
- }
-
- if ((central_pos<offset_central_dir+size_central_dir) &&
- (err==ZIP_OK))
- err=ZIP_BADZIPFILE;
-
- if (err!=ZIP_OK)
- {
- ZCLOSE64(pziinit->z_filefunc, pziinit->filestream);
- return ZIP_ERRNO;
- }
-
- if (size_comment>0)
- {
- pziinit->globalcomment = (char*)ALLOC(size_comment+1);
- if (pziinit->globalcomment)
- {
- size_comment = ZREAD64(pziinit->z_filefunc, pziinit->filestream, pziinit->globalcomment,size_comment);
- pziinit->globalcomment[size_comment]=0;
- }
- }
-
- byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir);
- pziinit->add_position_when_writting_offset = byte_before_the_zipfile;
-
- {
- ZPOS64_T size_central_dir_to_read = size_central_dir;
- size_t buf_size = SIZEDATA_INDATABLOCK;
- void* buf_read = (void*)ALLOC(buf_size);
- if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0)
- err=ZIP_ERRNO;
-
- while ((size_central_dir_to_read>0) && (err==ZIP_OK))
- {
- ZPOS64_T read_this = SIZEDATA_INDATABLOCK;
- if (read_this > size_central_dir_to_read)
- read_this = size_central_dir_to_read;
-
- if (ZREAD64(pziinit->z_filefunc, pziinit->filestream,buf_read,(uLong)read_this) != read_this)
- err=ZIP_ERRNO;
-
- if (err==ZIP_OK)
- err = add_data_in_datablock(&pziinit->central_dir,buf_read, (uLong)read_this);
-
- size_central_dir_to_read-=read_this;
- }
- TRYFREE(buf_read);
- }
- pziinit->begin_pos = byte_before_the_zipfile;
- pziinit->number_entry = number_entry_CD;
-
- if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET) != 0)
- err=ZIP_ERRNO;
-
- return err;
-}
-
-
-#endif /* !NO_ADDFILEINEXISTINGZIP*/
-
-
-/************************************************************/
-extern zipFile ZEXPORT zipOpen3 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def)
-{
- zip64_internal ziinit;
- zip64_internal* zi;
- int err=ZIP_OK;
-
- ziinit.z_filefunc.zseek32_file = NULL;
- ziinit.z_filefunc.ztell32_file = NULL;
- if (pzlib_filefunc64_32_def==NULL)
- fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64);
- else
- ziinit.z_filefunc = *pzlib_filefunc64_32_def;
-
- ziinit.filestream = ZOPEN64(ziinit.z_filefunc,
- pathname,
- (append == APPEND_STATUS_CREATE) ?
- (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) :
- (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING));
-
- if (ziinit.filestream == NULL)
- return NULL;
-
- if (append == APPEND_STATUS_CREATEAFTER)
- ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END);
-
- ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream);
- ziinit.in_opened_file_inzip = 0;
- ziinit.ci.stream_initialised = 0;
- ziinit.number_entry = 0;
- ziinit.add_position_when_writting_offset = 0;
- init_linkedlist(&(ziinit.central_dir));
-
-
-
- zi = (zip64_internal*)ALLOC(sizeof(zip64_internal));
- if (zi==NULL)
- {
- ZCLOSE64(ziinit.z_filefunc,ziinit.filestream);
- return NULL;
- }
-
- /* now we add file in a zipfile */
-# ifndef NO_ADDFILEINEXISTINGZIP
- ziinit.globalcomment = NULL;
- if (append == APPEND_STATUS_ADDINZIP)
- {
- // Read and Cache Central Directory Records
- err = LoadCentralDirectoryRecord(&ziinit);
- }
-
- if (globalcomment)
- {
- *globalcomment = ziinit.globalcomment;
- }
-# endif /* !NO_ADDFILEINEXISTINGZIP*/
-
- if (err != ZIP_OK)
- {
-# ifndef NO_ADDFILEINEXISTINGZIP
- TRYFREE(ziinit.globalcomment);
-# endif /* !NO_ADDFILEINEXISTINGZIP*/
- TRYFREE(zi);
- return NULL;
- }
- else
- {
- *zi = ziinit;
- return (zipFile)zi;
- }
-}
-
-extern zipFile ZEXPORT zipOpen2 (const char *pathname, int append, zipcharpc* globalcomment, zlib_filefunc_def* pzlib_filefunc32_def)
-{
- if (pzlib_filefunc32_def != NULL)
- {
- zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
- fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
- return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill);
- }
- else
- return zipOpen3(pathname, append, globalcomment, NULL);
-}
-
-extern zipFile ZEXPORT zipOpen2_64 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_def* pzlib_filefunc_def)
-{
- if (pzlib_filefunc_def != NULL)
- {
- zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
- zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
- zlib_filefunc64_32_def_fill.ztell32_file = NULL;
- zlib_filefunc64_32_def_fill.zseek32_file = NULL;
- return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill);
- }
- else
- return zipOpen3(pathname, append, globalcomment, NULL);
-}
-
-
-
-extern zipFile ZEXPORT zipOpen (const char* pathname, int append)
-{
- return zipOpen3((const void*)pathname,append,NULL,NULL);
-}
-
-extern zipFile ZEXPORT zipOpen64 (const void* pathname, int append)
-{
- return zipOpen3(pathname,append,NULL,NULL);
-}
-
-int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local)
-{
- /* write the local header */
- int err;
- uInt size_filename = (uInt)strlen(filename);
- uInt size_extrafield = size_extrafield_local;
-
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4);
-
- if (err==ZIP_OK)
- {
- if(zi->ci.zip64)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */
- else
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */
- }
-
- if (err==ZIP_OK)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2);
-
- if (err==ZIP_OK)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2);
-
- if (err==ZIP_OK)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4);
-
- // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later
- if (err==ZIP_OK)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */
- if (err==ZIP_OK)
- {
- if(zi->ci.zip64)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */
- else
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */
- }
- if (err==ZIP_OK)
- {
- if(zi->ci.zip64)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */
- else
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */
- }
-
- if (err==ZIP_OK)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2);
-
- if(zi->ci.zip64)
- {
- size_extrafield += 20;
- }
-
- if (err==ZIP_OK)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2);
-
- if ((err==ZIP_OK) && (size_filename > 0))
- {
- if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename)
- err = ZIP_ERRNO;
- }
-
- if ((err==ZIP_OK) && (size_extrafield_local > 0))
- {
- if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local)
- err = ZIP_ERRNO;
- }
-
-
- if ((err==ZIP_OK) && (zi->ci.zip64))
- {
- // write the Zip64 extended info
- short HeaderID = 1;
- short DataSize = 16;
- ZPOS64_T CompressedSize = 0;
- ZPOS64_T UncompressedSize = 0;
-
- // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file)
- zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream);
-
- err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)HeaderID,2);
- err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)DataSize,2);
-
- err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8);
- err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8);
- }
-
- return err;
-}
-
-/*
- NOTE.
- When writing RAW the ZIP64 extended information in extrafield_local and extrafield_global needs to be stripped
- before calling this function it can be done with zipRemoveExtraInfoBlock
-
- It is not done here because then we need to realloc a new buffer since parameters are 'const' and I want to minimize
- unnecessary allocations.
- */
-extern int ZEXPORT zipOpenNewFileInZip4_64 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
- const void* extrafield_local, uInt size_extrafield_local,
- const void* extrafield_global, uInt size_extrafield_global,
- const char* comment, int method, int level, int raw,
- int windowBits,int memLevel, int strategy,
- const char* password, uLong crcForCrypting,
- uLong versionMadeBy, uLong flagBase, int zip64)
-{
- zip64_internal* zi;
- uInt size_filename;
- uInt size_comment;
- uInt i;
- int err = ZIP_OK;
-
-# ifdef NOCRYPT
- (crcForCrypting);
- if (password != NULL)
- return ZIP_PARAMERROR;
-# endif
-
- if (file == NULL)
- return ZIP_PARAMERROR;
-
-#ifdef HAVE_BZIP2
- if ((method!=0) && (method!=Z_DEFLATED) && (method!=Z_BZIP2ED))
- return ZIP_PARAMERROR;
-#else
- if ((method!=0) && (method!=Z_DEFLATED))
- return ZIP_PARAMERROR;
-#endif
-
- zi = (zip64_internal*)file;
-
- if (zi->in_opened_file_inzip == 1)
- {
- err = zipCloseFileInZip (file);
- if (err != ZIP_OK)
- return err;
- }
-
- if (filename==NULL)
- filename="-";
-
- if (comment==NULL)
- size_comment = 0;
- else
- size_comment = (uInt)strlen(comment);
-
- size_filename = (uInt)strlen(filename);
-
- if (zipfi == NULL)
- zi->ci.dosDate = 0;
- else
- {
- if (zipfi->dosDate != 0)
- zi->ci.dosDate = zipfi->dosDate;
- else
- zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date);
- }
-
- zi->ci.flag = flagBase;
- if ((level==8) || (level==9))
- zi->ci.flag |= 2;
- if (level==2)
- zi->ci.flag |= 4;
- if (level==1)
- zi->ci.flag |= 6;
- if (password != NULL)
- zi->ci.flag |= 1;
-
- zi->ci.crc32 = 0;
- zi->ci.method = method;
- zi->ci.encrypt = 0;
- zi->ci.stream_initialised = 0;
- zi->ci.pos_in_buffered_data = 0;
- zi->ci.raw = raw;
- zi->ci.pos_local_header = ZTELL64(zi->z_filefunc,zi->filestream);
-
- zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global + size_comment;
- zi->ci.size_centralExtraFree = 32; // Extra space we have reserved in case we need to add ZIP64 extra info data
-
- zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree);
-
- zi->ci.size_centralExtra = size_extrafield_global;
- zip64local_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4);
- /* version info */
- zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)versionMadeBy,2);
- zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2);
- zip64local_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2);
- zip64local_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2);
- zip64local_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4);
- zip64local_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/
- zip64local_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/
- zip64local_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/
- zip64local_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2);
- zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2);
- zip64local_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2);
- zip64local_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
-
- if (zipfi==NULL)
- zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
- else
- zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
-
- if (zipfi==NULL)
- zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
- else
- zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
-
- if(zi->ci.pos_local_header >= 0xffffffff)
- zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)0xffffffff,4);
- else
- zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header - zi->add_position_when_writting_offset,4);
-
- for (i=0;i<size_filename;i++)
- *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i);
-
- for (i=0;i<size_extrafield_global;i++)
- *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) =
- *(((const char*)extrafield_global)+i);
-
- for (i=0;i<size_comment;i++)
- *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+
- size_extrafield_global+i) = *(comment+i);
- if (zi->ci.central_header == NULL)
- return ZIP_INTERNALERROR;
-
- zi->ci.zip64 = zip64;
- zi->ci.totalCompressedData = 0;
- zi->ci.totalUncompressedData = 0;
- zi->ci.pos_zip64extrainfo = 0;
-
- err = Write_LocalFileHeader(zi, filename, size_extrafield_local, extrafield_local);
-
-#ifdef HAVE_BZIP2
- zi->ci.bstream.avail_in = (uInt)0;
- zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
- zi->ci.bstream.total_in_hi32 = 0;
- zi->ci.bstream.total_in_lo32 = 0;
- zi->ci.bstream.total_out_hi32 = 0;
- zi->ci.bstream.total_out_lo32 = 0;
-#endif
-
- zi->ci.stream.avail_in = (uInt)0;
- zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.stream.next_out = zi->ci.buffered_data;
- zi->ci.stream.total_in = 0;
- zi->ci.stream.total_out = 0;
- zi->ci.stream.data_type = Z_BINARY;
-
-#ifdef HAVE_BZIP2
- if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED || zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
-#else
- if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
-#endif
- {
- if(zi->ci.method == Z_DEFLATED)
- {
- zi->ci.stream.zalloc = (alloc_func)0;
- zi->ci.stream.zfree = (free_func)0;
- zi->ci.stream.opaque = (voidpf)0;
-
- if (windowBits>0)
- windowBits = -windowBits;
-
- err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy);
-
- if (err==Z_OK)
- zi->ci.stream_initialised = Z_DEFLATED;
- }
- else if(zi->ci.method == Z_BZIP2ED)
- {
-#ifdef HAVE_BZIP2
- // Init BZip stuff here
- zi->ci.bstream.bzalloc = 0;
- zi->ci.bstream.bzfree = 0;
- zi->ci.bstream.opaque = (voidpf)0;
-
- err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0,35);
- if(err == BZ_OK)
- zi->ci.stream_initialised = Z_BZIP2ED;
-#endif
- }
-
- }
-
-# ifndef NOCRYPT
- zi->ci.crypt_header_size = 0;
- if ((err==Z_OK) && (password != NULL))
- {
- unsigned char bufHead[RAND_HEAD_LEN];
- unsigned int sizeHead;
- zi->ci.encrypt = 1;
- zi->ci.pcrc_32_tab = get_crc_table();
- /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/
-
- sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting);
- zi->ci.crypt_header_size = sizeHead;
-
- if (ZWRITE64(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead)
- err = ZIP_ERRNO;
- }
-# endif
-
- if (err==Z_OK)
- zi->in_opened_file_inzip = 1;
- return err;
-}
-
-extern int ZEXPORT zipOpenNewFileInZip4 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
- const void* extrafield_local, uInt size_extrafield_local,
- const void* extrafield_global, uInt size_extrafield_global,
- const char* comment, int method, int level, int raw,
- int windowBits,int memLevel, int strategy,
- const char* password, uLong crcForCrypting,
- uLong versionMadeBy, uLong flagBase)
-{
- return zipOpenNewFileInZip4_64 (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, raw,
- windowBits, memLevel, strategy,
- password, crcForCrypting, versionMadeBy, flagBase, 0);
-}
-
-extern int ZEXPORT zipOpenNewFileInZip3 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
- const void* extrafield_local, uInt size_extrafield_local,
- const void* extrafield_global, uInt size_extrafield_global,
- const char* comment, int method, int level, int raw,
- int windowBits,int memLevel, int strategy,
- const char* password, uLong crcForCrypting)
-{
- return zipOpenNewFileInZip4_64 (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, raw,
- windowBits, memLevel, strategy,
- password, crcForCrypting, VERSIONMADEBY, 0, 0);
-}
-
-extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
- const void* extrafield_local, uInt size_extrafield_local,
- const void* extrafield_global, uInt size_extrafield_global,
- const char* comment, int method, int level, int raw,
- int windowBits,int memLevel, int strategy,
- const char* password, uLong crcForCrypting, int zip64)
-{
- return zipOpenNewFileInZip4_64 (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, raw,
- windowBits, memLevel, strategy,
- password, crcForCrypting, VERSIONMADEBY, 0, zip64);
-}
-
-extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi,
- const void* extrafield_local, uInt size_extrafield_local,
- const void* extrafield_global, uInt size_extrafield_global,
- const char* comment, int method, int level, int raw)
-{
- return zipOpenNewFileInZip4_64 (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, raw,
- -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
- NULL, 0, VERSIONMADEBY, 0, 0);
-}
-
-extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
- const void* extrafield_local, uInt size_extrafield_local,
- const void* extrafield_global, uInt size_extrafield_global,
- const char* comment, int method, int level, int raw, int zip64)
-{
- return zipOpenNewFileInZip4_64 (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, raw,
- -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
- NULL, 0, VERSIONMADEBY, 0, zip64);
-}
-
-extern int ZEXPORT zipOpenNewFileInZip64 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
- const void* extrafield_local, uInt size_extrafield_local,
- const void*extrafield_global, uInt size_extrafield_global,
- const char* comment, int method, int level, int zip64)
-{
- return zipOpenNewFileInZip4_64 (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, 0,
- -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
- NULL, 0, VERSIONMADEBY, 0, zip64);
-}
-
-extern int ZEXPORT zipOpenNewFileInZip (zipFile file, const char* filename, const zip_fileinfo* zipfi,
- const void* extrafield_local, uInt size_extrafield_local,
- const void*extrafield_global, uInt size_extrafield_global,
- const char* comment, int method, int level)
-{
- return zipOpenNewFileInZip4_64 (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, 0,
- -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
- NULL, 0, VERSIONMADEBY, 0, 0);
-}
-
-local int zip64FlushWriteBuffer(zip64_internal* zi)
-{
- int err=ZIP_OK;
-
- if (zi->ci.encrypt != 0)
- {
-#ifndef NOCRYPT
- uInt i;
- int t;
- for (i=0;i<zi->ci.pos_in_buffered_data;i++)
- zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t);
-#endif
- }
-
- if (ZWRITE64(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) != zi->ci.pos_in_buffered_data)
- err = ZIP_ERRNO;
-
- zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data;
-
-#ifdef HAVE_BZIP2
- if(zi->ci.method == Z_BZIP2ED)
- {
- zi->ci.totalUncompressedData += zi->ci.bstream.total_in_lo32;
- zi->ci.bstream.total_in_lo32 = 0;
- zi->ci.bstream.total_in_hi32 = 0;
- }
- else
-#endif
- {
- zi->ci.totalUncompressedData += zi->ci.stream.total_in;
- zi->ci.stream.total_in = 0;
- }
-
-
- zi->ci.pos_in_buffered_data = 0;
-
- return err;
-}
-
-extern int ZEXPORT zipWriteInFileInZip (zipFile file,const void* buf,unsigned int len)
-{
- zip64_internal* zi;
- int err=ZIP_OK;
-
- if (file == NULL)
- return ZIP_PARAMERROR;
- zi = (zip64_internal*)file;
-
- if (zi->in_opened_file_inzip == 0)
- return ZIP_PARAMERROR;
-
- zi->ci.crc32 = crc32(zi->ci.crc32,buf,(uInt)len);
-
-#ifdef HAVE_BZIP2
- if(zi->ci.method == Z_BZIP2ED && (!zi->ci.raw))
- {
- zi->ci.bstream.next_in = (void*)buf;
- zi->ci.bstream.avail_in = len;
- err = BZ_RUN_OK;
-
- while ((err==BZ_RUN_OK) && (zi->ci.bstream.avail_in>0))
- {
- if (zi->ci.bstream.avail_out == 0)
- {
- if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
- err = ZIP_ERRNO;
- zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
- }
-
-
- if(err != BZ_RUN_OK)
- break;
-
- if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
- {
- uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32;
-// uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32;
- err=BZ2_bzCompress(&zi->ci.bstream, BZ_RUN);
-
- zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo) ;
- }
- }
-
- if(err == BZ_RUN_OK)
- err = ZIP_OK;
- }
- else
-#endif
- {
- zi->ci.stream.next_in = (Bytef*)buf;
- zi->ci.stream.avail_in = len;
-
- while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0))
- {
- if (zi->ci.stream.avail_out == 0)
- {
- if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
- err = ZIP_ERRNO;
- zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.stream.next_out = zi->ci.buffered_data;
- }
-
-
- if(err != ZIP_OK)
- break;
-
- if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
- {
- uLong uTotalOutBefore = zi->ci.stream.total_out;
- err=deflate(&zi->ci.stream, Z_NO_FLUSH);
- if(uTotalOutBefore > zi->ci.stream.total_out)
- {
- int bBreak = 0;
- bBreak++;
- }
-
- zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
- }
- else
- {
- uInt copy_this,i;
- if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
- copy_this = zi->ci.stream.avail_in;
- else
- copy_this = zi->ci.stream.avail_out;
-
- for (i = 0; i < copy_this; i++)
- *(((char*)zi->ci.stream.next_out)+i) =
- *(((const char*)zi->ci.stream.next_in)+i);
- {
- zi->ci.stream.avail_in -= copy_this;
- zi->ci.stream.avail_out-= copy_this;
- zi->ci.stream.next_in+= copy_this;
- zi->ci.stream.next_out+= copy_this;
- zi->ci.stream.total_in+= copy_this;
- zi->ci.stream.total_out+= copy_this;
- zi->ci.pos_in_buffered_data += copy_this;
- }
- }
- }// while(...)
- }
-
- return err;
-}
-
-extern int ZEXPORT zipCloseFileInZipRaw (zipFile file, uLong uncompressed_size, uLong crc32)
-{
- return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32);
-}
-
-extern int ZEXPORT zipCloseFileInZipRaw64 (zipFile file, ZPOS64_T uncompressed_size, uLong crc32)
-{
- zip64_internal* zi;
- ZPOS64_T compressed_size;
- uLong invalidValue = 0xffffffff;
- short datasize = 0;
- int err=ZIP_OK;
-
- if (file == NULL)
- return ZIP_PARAMERROR;
- zi = (zip64_internal*)file;
-
- if (zi->in_opened_file_inzip == 0)
- return ZIP_PARAMERROR;
- zi->ci.stream.avail_in = 0;
-
- if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
- {
- while (err==ZIP_OK)
- {
- uLong uTotalOutBefore;
- if (zi->ci.stream.avail_out == 0)
- {
- if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
- err = ZIP_ERRNO;
- zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.stream.next_out = zi->ci.buffered_data;
- }
- uTotalOutBefore = zi->ci.stream.total_out;
- err=deflate(&zi->ci.stream, Z_FINISH);
- zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
- }
- }
- else if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
- {
-#ifdef HAVE_BZIP2
- err = BZ_FINISH_OK;
- while (err==BZ_FINISH_OK)
- {
- uLong uTotalOutBefore;
- if (zi->ci.bstream.avail_out == 0)
- {
- if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
- err = ZIP_ERRNO;
- zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
- }
- uTotalOutBefore = zi->ci.bstream.total_out_lo32;
- err=BZ2_bzCompress(&zi->ci.bstream, BZ_FINISH);
- if(err == BZ_STREAM_END)
- err = Z_STREAM_END;
-
- zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore);
- }
-
- if(err == BZ_FINISH_OK)
- err = ZIP_OK;
-#endif
- }
-
- if (err==Z_STREAM_END)
- err=ZIP_OK; /* this is normal */
-
- if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK))
- {
- if (zip64FlushWriteBuffer(zi)==ZIP_ERRNO)
- err = ZIP_ERRNO;
- }
-
- if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
- {
- int tmp_err = deflateEnd(&zi->ci.stream);
- if (err == ZIP_OK)
- err = tmp_err;
- zi->ci.stream_initialised = 0;
- }
-#ifdef HAVE_BZIP2
- else if((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
- {
- int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream);
- if (err==ZIP_OK)
- err = tmperr;
- zi->ci.stream_initialised = 0;
- }
-#endif
-
- if (!zi->ci.raw)
- {
- crc32 = (uLong)zi->ci.crc32;
- uncompressed_size = zi->ci.totalUncompressedData;
- }
- compressed_size = zi->ci.totalCompressedData;
-
-# ifndef NOCRYPT
- compressed_size += zi->ci.crypt_header_size;
-# endif
-
- // update Current Item crc and sizes,
- if(compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff)
- {
- /*version Made by*/
- zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)45,2);
- /*version needed*/
- zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)45,2);
-
- }
-
- zip64local_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/
-
-
- if(compressed_size >= 0xffffffff)
- zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue,4); /*compr size*/
- else
- zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size,4); /*compr size*/
-
- /// set internal file attributes field
- if (zi->ci.stream.data_type == Z_ASCII)
- zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2);
-
- if(uncompressed_size >= 0xffffffff)
- zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue,4); /*uncompr size*/
- else
- zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size,4); /*uncompr size*/
-
- // Add ZIP64 extra info field for uncompressed size
- if(uncompressed_size >= 0xffffffff)
- datasize += 8;
-
- // Add ZIP64 extra info field for compressed size
- if(compressed_size >= 0xffffffff)
- datasize += 8;
-
- // Add ZIP64 extra info field for relative offset to local file header of current file
- if(zi->ci.pos_local_header >= 0xffffffff)
- datasize += 8;
-
- if(datasize > 0)
- {
- char* p = NULL;
-
- if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree)
- {
- // we can not write more data to the buffer that we have room for.
- return ZIP_BADZIPFILE;
- }
-
- p = zi->ci.central_header + zi->ci.size_centralheader;
-
- // Add Extra Information Header for 'ZIP64 information'
- zip64local_putValue_inmemory(p, 0x0001, 2); // HeaderID
- p += 2;
- zip64local_putValue_inmemory(p, datasize, 2); // DataSize
- p += 2;
-
- if(uncompressed_size >= 0xffffffff)
- {
- zip64local_putValue_inmemory(p, uncompressed_size, 8);
- p += 8;
- }
-
- if(compressed_size >= 0xffffffff)
- {
- zip64local_putValue_inmemory(p, compressed_size, 8);
- p += 8;
- }
-
- if(zi->ci.pos_local_header >= 0xffffffff)
- {
- zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8);
- p += 8;
- }
-
- // Update how much extra free space we got in the memory buffer
- // and increase the centralheader size so the new ZIP64 fields are included
- // ( 4 below is the size of HeaderID and DataSize field )
- zi->ci.size_centralExtraFree -= datasize + 4;
- zi->ci.size_centralheader += datasize + 4;
-
- // Update the extra info size field
- zi->ci.size_centralExtra += datasize + 4;
- zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)zi->ci.size_centralExtra,2);
- }
-
- if (err==ZIP_OK)
- err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader);
-
- free(zi->ci.central_header);
-
- if (err==ZIP_OK)
- {
- // Update the LocalFileHeader with the new values.
-
- ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream);
-
- if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err = ZIP_ERRNO;
-
- if (err==ZIP_OK)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */
-
- if(uncompressed_size >= 0xffffffff || compressed_size >= 0xffffffff )
- {
- if(zi->ci.pos_zip64extrainfo > 0)
- {
- // Update the size in the ZIP64 extended field.
- if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_zip64extrainfo + 4,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err = ZIP_ERRNO;
-
- if (err==ZIP_OK) /* compressed size, unknown */
- err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8);
-
- if (err==ZIP_OK) /* uncompressed size, unknown */
- err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8);
- }
- else
- err = ZIP_BADZIPFILE; // Caller passed zip64 = 0, so no room for zip64 info -> fatal
- }
- else
- {
- if (err==ZIP_OK) /* compressed size, unknown */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4);
-
- if (err==ZIP_OK) /* uncompressed size, unknown */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4);
- }
-
- if (ZSEEK64(zi->z_filefunc,zi->filestream, cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err = ZIP_ERRNO;
- }
-
- zi->number_entry ++;
- zi->in_opened_file_inzip = 0;
-
- return err;
-}
-
-extern int ZEXPORT zipCloseFileInZip (zipFile file)
-{
- return zipCloseFileInZipRaw (file,0,0);
-}
-
-int Write_Zip64EndOfCentralDirectoryLocator(zip64_internal* zi, ZPOS64_T zip64eocd_pos_inzip)
-{
- int err = ZIP_OK;
- ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writting_offset;
-
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDLOCHEADERMAGIC,4);
-
- /*num disks*/
- if (err==ZIP_OK) /* number of the disk with the start of the central directory */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
-
- /*relative offset*/
- if (err==ZIP_OK) /* Relative offset to the Zip64EndOfCentralDirectory */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream, pos,8);
-
- /*total disks*/ /* Do not support spawning of disk so always say 1 here*/
- if (err==ZIP_OK) /* number of the disk with the start of the central directory */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)1,4);
-
- return err;
-}
-
-int Write_Zip64EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip)
-{
- int err = ZIP_OK;
-
- uLong Zip64DataSize = 44;
-
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDHEADERMAGIC,4);
-
- if (err==ZIP_OK) /* size of this 'zip64 end of central directory' */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)Zip64DataSize,8); // why ZPOS64_T of this ?
-
- if (err==ZIP_OK) /* version made by */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);
-
- if (err==ZIP_OK) /* version needed */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);
-
- if (err==ZIP_OK) /* number of this disk */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
-
- if (err==ZIP_OK) /* number of the disk with the start of the central directory */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
-
- if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
- err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
-
- if (err==ZIP_OK) /* total number of entries in the central dir */
- err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
-
- if (err==ZIP_OK) /* size of the central directory */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)size_centraldir,8);
-
- if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */
- {
- ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos,8);
- }
- return err;
-}
-int Write_EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip)
-{
- int err = ZIP_OK;
-
- /*signature*/
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4);
-
- if (err==ZIP_OK) /* number of this disk */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
-
- if (err==ZIP_OK) /* number of the disk with the start of the central directory */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
-
- if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
- {
- {
- if(zi->number_entry >= 0xFFFF)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record
- else
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
- }
- }
-
- if (err==ZIP_OK) /* total number of entries in the central dir */
- {
- if(zi->number_entry >= 0xFFFF)
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record
- else
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
- }
-
- if (err==ZIP_OK) /* size of the central directory */
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4);
-
- if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */
- {
- ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
- if(pos >= 0xffffffff)
- {
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4);
- }
- else
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4);
- }
-
- return err;
-}
-
-int Write_GlobalComment(zip64_internal* zi, const char* global_comment)
-{
- int err = ZIP_OK;
- uInt size_global_comment = 0;
-
- if(global_comment != NULL)
- size_global_comment = (uInt)strlen(global_comment);
-
- err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2);
-
- if (err == ZIP_OK && size_global_comment > 0)
- {
- if (ZWRITE64(zi->z_filefunc,zi->filestream, global_comment, size_global_comment) != size_global_comment)
- err = ZIP_ERRNO;
- }
- return err;
-}
-
-extern int ZEXPORT zipClose (zipFile file, const char* global_comment)
-{
- zip64_internal* zi;
- int err = 0;
- uLong size_centraldir = 0;
- ZPOS64_T centraldir_pos_inzip;
- ZPOS64_T pos;
-
- if (file == NULL)
- return ZIP_PARAMERROR;
-
- zi = (zip64_internal*)file;
-
- if (zi->in_opened_file_inzip == 1)
- {
- err = zipCloseFileInZip (file);
- }
-
-#ifndef NO_ADDFILEINEXISTINGZIP
- if (global_comment==NULL)
- global_comment = zi->globalcomment;
-#endif
-
- centraldir_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream);
-
- if (err==ZIP_OK)
- {
- linkedlist_datablock_internal* ldi = zi->central_dir.first_block;
- while (ldi!=NULL)
- {
- if ((err==ZIP_OK) && (ldi->filled_in_this_block>0))
- {
- if (ZWRITE64(zi->z_filefunc,zi->filestream, ldi->data, ldi->filled_in_this_block) != ldi->filled_in_this_block)
- err = ZIP_ERRNO;
- }
-
- size_centraldir += ldi->filled_in_this_block;
- ldi = ldi->next_datablock;
- }
- }
- free_linkedlist(&(zi->central_dir));
-
- pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
- if(pos >= 0xffffffff || zi->number_entry > 0xFFFF)
- {
- ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream);
- Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
-
- Write_Zip64EndOfCentralDirectoryLocator(zi, Zip64EOCDpos);
- }
-
- if (err==ZIP_OK)
- err = Write_EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
-
- if(err == ZIP_OK)
- err = Write_GlobalComment(zi, global_comment);
-
- if (ZCLOSE64(zi->z_filefunc,zi->filestream) != 0)
- if (err == ZIP_OK)
- err = ZIP_ERRNO;
-
-#ifndef NO_ADDFILEINEXISTINGZIP
- TRYFREE(zi->globalcomment);
-#endif
- TRYFREE(zi);
-
- return err;
-}
-
-extern int ZEXPORT zipRemoveExtraInfoBlock (char* pData, int* dataLen, short sHeader)
-{
- char* p = pData;
- int size = 0;
- char* pNewHeader;
- char* pTmp;
- short header;
- short dataSize;
-
- int retVal = ZIP_OK;
-
- if(pData == NULL || *dataLen < 4)
- return ZIP_PARAMERROR;
-
- pNewHeader = (char*)ALLOC(*dataLen);
- pTmp = pNewHeader;
-
- while(p < (pData + *dataLen))
- {
- header = *(short*)p;
- dataSize = *(((short*)p)+1);
-
- if( header == sHeader ) // Header found.
- {
- p += dataSize + 4; // skip it. do not copy to temp buffer
- }
- else
- {
- // Extra Info block should not be removed, So copy it to the temp buffer.
- memcpy(pTmp, p, dataSize + 4);
- p += dataSize + 4;
- size += dataSize + 4;
- }
-
- }
-
- if(size < *dataLen)
- {
- // clean old extra info block.
- memset(pData,0, *dataLen);
-
- // copy the new extra info block over the old
- if(size > 0)
- memcpy(pData, pNewHeader, size);
-
- // set the new extra info size
- *dataLen = size;
-
- retVal = ZIP_OK;
- }
- else
- retVal = ZIP_ERRNO;
-
- TRYFREE(pNewHeader);
-
- return retVal;
-}
+++ /dev/null
-/* zip.h -- IO on .zip files using zlib
- Version 1.1, February 14h, 2010
- part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
-
- Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
-
- Modifications for Zip64 support
- Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
-
- For more info read MiniZip_info.txt
-
- ---------------------------------------------------------------------------
-
- Condition of use and distribution are the same than zlib :
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- ---------------------------------------------------------------------------
-
- Changes
-
- See header of zip.h
-
-*/
-
-#ifndef _zip12_H
-#define _zip12_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-//#define HAVE_BZIP2
-
-#ifndef _ZLIB_H
-#include "zlib.h"
-#endif
-
-#ifndef _ZLIBIOAPI_H
-#include "ioapi.h"
-#endif
-
-#ifdef HAVE_BZIP2
-#include "bzlib.h"
-#endif
-
-#define Z_BZIP2ED 12
-
-#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
-/* like the STRICT of WIN32, we define a pointer that cannot be converted
- from (void*) without cast */
-typedef struct TagzipFile__ { int unused; } zipFile__;
-typedef zipFile__ *zipFile;
-#else
-typedef voidp zipFile;
-#endif
-
-#define ZIP_OK (0)
-#define ZIP_EOF (0)
-#define ZIP_ERRNO (Z_ERRNO)
-#define ZIP_PARAMERROR (-102)
-#define ZIP_BADZIPFILE (-103)
-#define ZIP_INTERNALERROR (-104)
-
-#ifndef DEF_MEM_LEVEL
-# if MAX_MEM_LEVEL >= 8
-# define DEF_MEM_LEVEL 8
-# else
-# define DEF_MEM_LEVEL MAX_MEM_LEVEL
-# endif
-#endif
-/* default memLevel */
-
-/* tm_zip contain date/time info */
-typedef struct tm_zip_s
-{
- uInt tm_sec; /* seconds after the minute - [0,59] */
- uInt tm_min; /* minutes after the hour - [0,59] */
- uInt tm_hour; /* hours since midnight - [0,23] */
- uInt tm_mday; /* day of the month - [1,31] */
- uInt tm_mon; /* months since January - [0,11] */
- uInt tm_year; /* years - [1980..2044] */
-} tm_zip;
-
-typedef struct
-{
- tm_zip tmz_date; /* date in understandable format */
- uLong dosDate; /* if dos_date == 0, tmu_date is used */
-/* uLong flag; */ /* general purpose bit flag 2 bytes */
-
- uLong internal_fa; /* internal file attributes 2 bytes */
- uLong external_fa; /* external file attributes 4 bytes */
-} zip_fileinfo;
-
-typedef const char* zipcharpc;
-
-
-#define APPEND_STATUS_CREATE (0)
-#define APPEND_STATUS_CREATEAFTER (1)
-#define APPEND_STATUS_ADDINZIP (2)
-
-extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append));
-extern zipFile ZEXPORT zipOpen64 OF((const void *pathname, int append));
-/*
- Create a zipfile.
- pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on
- an Unix computer "zlib/zlib113.zip".
- if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip
- will be created at the end of the file.
- (useful if the file contain a self extractor code)
- if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will
- add files in existing zip (be sure you don't add file that doesn't exist)
- If the zipfile cannot be opened, the return value is NULL.
- Else, the return value is a zipFile Handle, usable with other function
- of this zip package.
-*/
-
-/* Note : there is no delete function into a zipfile.
- If you want delete file into a zipfile, you must open a zipfile, and create another
- Of couse, you can use RAW reading and writing to copy the file you did not want delte
-*/
-
-extern zipFile ZEXPORT zipOpen2 OF((const char *pathname,
- int append,
- zipcharpc* globalcomment,
- zlib_filefunc_def* pzlib_filefunc_def));
-
-extern zipFile ZEXPORT zipOpen2_64 OF((const void *pathname,
- int append,
- zipcharpc* globalcomment,
- zlib_filefunc64_def* pzlib_filefunc_def));
-
-extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level));
-
-extern int ZEXPORT zipOpenNewFileInZip64 OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level,
- int zip64));
-
-/*
- Open a file in the ZIP for writing.
- filename : the filename in zip (if NULL, '-' without quote will be used
- *zipfi contain supplemental information
- if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local
- contains the extrafield data the the local header
- if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global
- contains the extrafield data the the local header
- if comment != NULL, comment contain the comment string
- method contain the compression method (0 for store, Z_DEFLATED for deflate)
- level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
- zip64 is set to 1 if a zip64 extended information block should be added to the local file header.
- this MUST be '1' if the uncompressed size is >= 0xffffffff.
-
-*/
-
-
-extern int ZEXPORT zipOpenNewFileInZip2 OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level,
- int raw));
-
-
-extern int ZEXPORT zipOpenNewFileInZip2_64 OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level,
- int raw,
- int zip64));
-/*
- Same than zipOpenNewFileInZip, except if raw=1, we write raw file
- */
-
-extern int ZEXPORT zipOpenNewFileInZip3 OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level,
- int raw,
- int windowBits,
- int memLevel,
- int strategy,
- const char* password,
- uLong crcForCrypting));
-
-extern int ZEXPORT zipOpenNewFileInZip3_64 OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level,
- int raw,
- int windowBits,
- int memLevel,
- int strategy,
- const char* password,
- uLong crcForCrypting,
- int zip64
- ));
-
-/*
- Same than zipOpenNewFileInZip2, except
- windowBits,memLevel,,strategy : see parameter strategy in deflateInit2
- password : crypting password (NULL for no crypting)
- crcForCrypting : crc of file to compress (needed for crypting)
- */
-
-extern int ZEXPORT zipOpenNewFileInZip4 OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level,
- int raw,
- int windowBits,
- int memLevel,
- int strategy,
- const char* password,
- uLong crcForCrypting,
- uLong versionMadeBy,
- uLong flagBase
- ));
-
-
-extern int ZEXPORT zipOpenNewFileInZip4_64 OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level,
- int raw,
- int windowBits,
- int memLevel,
- int strategy,
- const char* password,
- uLong crcForCrypting,
- uLong versionMadeBy,
- uLong flagBase,
- int zip64
- ));
-/*
- Same than zipOpenNewFileInZip4, except
- versionMadeBy : value for Version made by field
- flag : value for flag field (compression level info will be added)
- */
-
-
-extern int ZEXPORT zipWriteInFileInZip OF((zipFile file,
- const void* buf,
- unsigned len));
-/*
- Write data in the zipfile
-*/
-
-extern int ZEXPORT zipCloseFileInZip OF((zipFile file));
-/*
- Close the current file in the zipfile
-*/
-
-extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file,
- uLong uncompressed_size,
- uLong crc32));
-
-extern int ZEXPORT zipCloseFileInZipRaw64 OF((zipFile file,
- ZPOS64_T uncompressed_size,
- uLong crc32));
-
-/*
- Close the current file in the zipfile, for file opened with
- parameter raw=1 in zipOpenNewFileInZip2
- uncompressed_size and crc32 are value for the uncompressed size
-*/
-
-extern int ZEXPORT zipClose OF((zipFile file,
- const char* global_comment));
-/*
- Close the zipfile
-*/
-
-
-extern int ZEXPORT zipRemoveExtraInfoBlock OF((char* pData, int* dataLen, short sHeader));
-/*
- zipRemoveExtraInfoBlock - Added by Mathias Svensson
-
- Remove extra information block from a extra information data for the local file header or central directory header
-
- It is needed to remove ZIP64 extra information blocks when before data is written if using RAW mode.
-
- 0x0001 is the signature header for the ZIP64 extra information blocks
-
- usage.
- Remove ZIP64 Extra information from a central director extra field data
- zipRemoveExtraInfoBlock(pCenDirExtraFieldData, &nCenDirExtraFieldDataLen, 0x0001);
-
- Remove ZIP64 Extra information from a Local File Header extra field data
- zipRemoveExtraInfoBlock(pLocalHeaderExtraFieldData, &nLocalHeaderExtraFieldDataLen, 0x0001);
-*/
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _zip64_H */
+++ /dev/null
-(* example.c -- usage example of the zlib compression library
- * Copyright (C) 1995-2003 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Pascal translation
- * Copyright (C) 1998 by Jacques Nomssi Nzali.
- * For conditions of distribution and use, see copyright notice in readme.txt
- *
- * Adaptation to the zlibpas interface
- * Copyright (C) 2003 by Cosmin Truta.
- * For conditions of distribution and use, see copyright notice in readme.txt
- *)
-
-program example;
-
-{$DEFINE TEST_COMPRESS}
-{DO NOT $DEFINE TEST_GZIO}
-{$DEFINE TEST_DEFLATE}
-{$DEFINE TEST_INFLATE}
-{$DEFINE TEST_FLUSH}
-{$DEFINE TEST_SYNC}
-{$DEFINE TEST_DICT}
-
-uses SysUtils, zlibpas;
-
-const TESTFILE = 'foo.gz';
-
-(* "hello world" would be more standard, but the repeated "hello"
- * stresses the compression code better, sorry...
- *)
-const hello: PChar = 'hello, hello!';
-
-const dictionary: PChar = 'hello';
-
-var dictId: LongInt; (* Adler32 value of the dictionary *)
-
-procedure CHECK_ERR(err: Integer; msg: String);
-begin
- if err <> Z_OK then
- begin
- WriteLn(msg, ' error: ', err);
- Halt(1);
- end;
-end;
-
-procedure EXIT_ERR(const msg: String);
-begin
- WriteLn('Error: ', msg);
- Halt(1);
-end;
-
-(* ===========================================================================
- * Test compress and uncompress
- *)
-{$IFDEF TEST_COMPRESS}
-procedure test_compress(compr: Pointer; comprLen: LongInt;
- uncompr: Pointer; uncomprLen: LongInt);
-var err: Integer;
- len: LongInt;
-begin
- len := StrLen(hello)+1;
-
- err := compress(compr, comprLen, hello, len);
- CHECK_ERR(err, 'compress');
-
- StrCopy(PChar(uncompr), 'garbage');
-
- err := uncompress(uncompr, uncomprLen, compr, comprLen);
- CHECK_ERR(err, 'uncompress');
-
- if StrComp(PChar(uncompr), hello) <> 0 then
- EXIT_ERR('bad uncompress')
- else
- WriteLn('uncompress(): ', PChar(uncompr));
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test read/write of .gz files
- *)
-{$IFDEF TEST_GZIO}
-procedure test_gzio(const fname: PChar; (* compressed file name *)
- uncompr: Pointer;
- uncomprLen: LongInt);
-var err: Integer;
- len: Integer;
- zfile: gzFile;
- pos: LongInt;
-begin
- len := StrLen(hello)+1;
-
- zfile := gzopen(fname, 'wb');
- if zfile = NIL then
- begin
- WriteLn('gzopen error');
- Halt(1);
- end;
- gzputc(zfile, 'h');
- if gzputs(zfile, 'ello') <> 4 then
- begin
- WriteLn('gzputs err: ', gzerror(zfile, err));
- Halt(1);
- end;
- {$IFDEF GZ_FORMAT_STRING}
- if gzprintf(zfile, ', %s!', 'hello') <> 8 then
- begin
- WriteLn('gzprintf err: ', gzerror(zfile, err));
- Halt(1);
- end;
- {$ELSE}
- if gzputs(zfile, ', hello!') <> 8 then
- begin
- WriteLn('gzputs err: ', gzerror(zfile, err));
- Halt(1);
- end;
- {$ENDIF}
- gzseek(zfile, 1, SEEK_CUR); (* add one zero byte *)
- gzclose(zfile);
-
- zfile := gzopen(fname, 'rb');
- if zfile = NIL then
- begin
- WriteLn('gzopen error');
- Halt(1);
- end;
-
- StrCopy(PChar(uncompr), 'garbage');
-
- if gzread(zfile, uncompr, uncomprLen) <> len then
- begin
- WriteLn('gzread err: ', gzerror(zfile, err));
- Halt(1);
- end;
- if StrComp(PChar(uncompr), hello) <> 0 then
- begin
- WriteLn('bad gzread: ', PChar(uncompr));
- Halt(1);
- end
- else
- WriteLn('gzread(): ', PChar(uncompr));
-
- pos := gzseek(zfile, -8, SEEK_CUR);
- if (pos <> 6) or (gztell(zfile) <> pos) then
- begin
- WriteLn('gzseek error, pos=', pos, ', gztell=', gztell(zfile));
- Halt(1);
- end;
-
- if gzgetc(zfile) <> ' ' then
- begin
- WriteLn('gzgetc error');
- Halt(1);
- end;
-
- if gzungetc(' ', zfile) <> ' ' then
- begin
- WriteLn('gzungetc error');
- Halt(1);
- end;
-
- gzgets(zfile, PChar(uncompr), uncomprLen);
- uncomprLen := StrLen(PChar(uncompr));
- if uncomprLen <> 7 then (* " hello!" *)
- begin
- WriteLn('gzgets err after gzseek: ', gzerror(zfile, err));
- Halt(1);
- end;
- if StrComp(PChar(uncompr), hello + 6) <> 0 then
- begin
- WriteLn('bad gzgets after gzseek');
- Halt(1);
- end
- else
- WriteLn('gzgets() after gzseek: ', PChar(uncompr));
-
- gzclose(zfile);
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test deflate with small buffers
- *)
-{$IFDEF TEST_DEFLATE}
-procedure test_deflate(compr: Pointer; comprLen: LongInt);
-var c_stream: z_stream; (* compression stream *)
- err: Integer;
- len: LongInt;
-begin
- len := StrLen(hello)+1;
-
- c_stream.zalloc := NIL;
- c_stream.zfree := NIL;
- c_stream.opaque := NIL;
-
- err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION);
- CHECK_ERR(err, 'deflateInit');
-
- c_stream.next_in := hello;
- c_stream.next_out := compr;
-
- while (c_stream.total_in <> len) and
- (c_stream.total_out < comprLen) do
- begin
- c_stream.avail_out := 1; { force small buffers }
- c_stream.avail_in := 1;
- err := deflate(c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, 'deflate');
- end;
-
- (* Finish the stream, still forcing small buffers: *)
- while TRUE do
- begin
- c_stream.avail_out := 1;
- err := deflate(c_stream, Z_FINISH);
- if err = Z_STREAM_END then
- break;
- CHECK_ERR(err, 'deflate');
- end;
-
- err := deflateEnd(c_stream);
- CHECK_ERR(err, 'deflateEnd');
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test inflate with small buffers
- *)
-{$IFDEF TEST_INFLATE}
-procedure test_inflate(compr: Pointer; comprLen : LongInt;
- uncompr: Pointer; uncomprLen : LongInt);
-var err: Integer;
- d_stream: z_stream; (* decompression stream *)
-begin
- StrCopy(PChar(uncompr), 'garbage');
-
- d_stream.zalloc := NIL;
- d_stream.zfree := NIL;
- d_stream.opaque := NIL;
-
- d_stream.next_in := compr;
- d_stream.avail_in := 0;
- d_stream.next_out := uncompr;
-
- err := inflateInit(d_stream);
- CHECK_ERR(err, 'inflateInit');
-
- while (d_stream.total_out < uncomprLen) and
- (d_stream.total_in < comprLen) do
- begin
- d_stream.avail_out := 1; (* force small buffers *)
- d_stream.avail_in := 1;
- err := inflate(d_stream, Z_NO_FLUSH);
- if err = Z_STREAM_END then
- break;
- CHECK_ERR(err, 'inflate');
- end;
-
- err := inflateEnd(d_stream);
- CHECK_ERR(err, 'inflateEnd');
-
- if StrComp(PChar(uncompr), hello) <> 0 then
- EXIT_ERR('bad inflate')
- else
- WriteLn('inflate(): ', PChar(uncompr));
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test deflate with large buffers and dynamic change of compression level
- *)
-{$IFDEF TEST_DEFLATE}
-procedure test_large_deflate(compr: Pointer; comprLen: LongInt;
- uncompr: Pointer; uncomprLen: LongInt);
-var c_stream: z_stream; (* compression stream *)
- err: Integer;
-begin
- c_stream.zalloc := NIL;
- c_stream.zfree := NIL;
- c_stream.opaque := NIL;
-
- err := deflateInit(c_stream, Z_BEST_SPEED);
- CHECK_ERR(err, 'deflateInit');
-
- c_stream.next_out := compr;
- c_stream.avail_out := Integer(comprLen);
-
- (* At this point, uncompr is still mostly zeroes, so it should compress
- * very well:
- *)
- c_stream.next_in := uncompr;
- c_stream.avail_in := Integer(uncomprLen);
- err := deflate(c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, 'deflate');
- if c_stream.avail_in <> 0 then
- EXIT_ERR('deflate not greedy');
-
- (* Feed in already compressed data and switch to no compression: *)
- deflateParams(c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
- c_stream.next_in := compr;
- c_stream.avail_in := Integer(comprLen div 2);
- err := deflate(c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, 'deflate');
-
- (* Switch back to compressing mode: *)
- deflateParams(c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
- c_stream.next_in := uncompr;
- c_stream.avail_in := Integer(uncomprLen);
- err := deflate(c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, 'deflate');
-
- err := deflate(c_stream, Z_FINISH);
- if err <> Z_STREAM_END then
- EXIT_ERR('deflate should report Z_STREAM_END');
-
- err := deflateEnd(c_stream);
- CHECK_ERR(err, 'deflateEnd');
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test inflate with large buffers
- *)
-{$IFDEF TEST_INFLATE}
-procedure test_large_inflate(compr: Pointer; comprLen: LongInt;
- uncompr: Pointer; uncomprLen: LongInt);
-var err: Integer;
- d_stream: z_stream; (* decompression stream *)
-begin
- StrCopy(PChar(uncompr), 'garbage');
-
- d_stream.zalloc := NIL;
- d_stream.zfree := NIL;
- d_stream.opaque := NIL;
-
- d_stream.next_in := compr;
- d_stream.avail_in := Integer(comprLen);
-
- err := inflateInit(d_stream);
- CHECK_ERR(err, 'inflateInit');
-
- while TRUE do
- begin
- d_stream.next_out := uncompr; (* discard the output *)
- d_stream.avail_out := Integer(uncomprLen);
- err := inflate(d_stream, Z_NO_FLUSH);
- if err = Z_STREAM_END then
- break;
- CHECK_ERR(err, 'large inflate');
- end;
-
- err := inflateEnd(d_stream);
- CHECK_ERR(err, 'inflateEnd');
-
- if d_stream.total_out <> 2 * uncomprLen + comprLen div 2 then
- begin
- WriteLn('bad large inflate: ', d_stream.total_out);
- Halt(1);
- end
- else
- WriteLn('large_inflate(): OK');
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test deflate with full flush
- *)
-{$IFDEF TEST_FLUSH}
-procedure test_flush(compr: Pointer; var comprLen : LongInt);
-var c_stream: z_stream; (* compression stream *)
- err: Integer;
- len: Integer;
-begin
- len := StrLen(hello)+1;
-
- c_stream.zalloc := NIL;
- c_stream.zfree := NIL;
- c_stream.opaque := NIL;
-
- err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION);
- CHECK_ERR(err, 'deflateInit');
-
- c_stream.next_in := hello;
- c_stream.next_out := compr;
- c_stream.avail_in := 3;
- c_stream.avail_out := Integer(comprLen);
- err := deflate(c_stream, Z_FULL_FLUSH);
- CHECK_ERR(err, 'deflate');
-
- Inc(PByteArray(compr)^[3]); (* force an error in first compressed block *)
- c_stream.avail_in := len - 3;
-
- err := deflate(c_stream, Z_FINISH);
- if err <> Z_STREAM_END then
- CHECK_ERR(err, 'deflate');
-
- err := deflateEnd(c_stream);
- CHECK_ERR(err, 'deflateEnd');
-
- comprLen := c_stream.total_out;
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test inflateSync()
- *)
-{$IFDEF TEST_SYNC}
-procedure test_sync(compr: Pointer; comprLen: LongInt;
- uncompr: Pointer; uncomprLen : LongInt);
-var err: Integer;
- d_stream: z_stream; (* decompression stream *)
-begin
- StrCopy(PChar(uncompr), 'garbage');
-
- d_stream.zalloc := NIL;
- d_stream.zfree := NIL;
- d_stream.opaque := NIL;
-
- d_stream.next_in := compr;
- d_stream.avail_in := 2; (* just read the zlib header *)
-
- err := inflateInit(d_stream);
- CHECK_ERR(err, 'inflateInit');
-
- d_stream.next_out := uncompr;
- d_stream.avail_out := Integer(uncomprLen);
-
- inflate(d_stream, Z_NO_FLUSH);
- CHECK_ERR(err, 'inflate');
-
- d_stream.avail_in := Integer(comprLen-2); (* read all compressed data *)
- err := inflateSync(d_stream); (* but skip the damaged part *)
- CHECK_ERR(err, 'inflateSync');
-
- err := inflate(d_stream, Z_FINISH);
- if err <> Z_DATA_ERROR then
- EXIT_ERR('inflate should report DATA_ERROR');
- (* Because of incorrect adler32 *)
-
- err := inflateEnd(d_stream);
- CHECK_ERR(err, 'inflateEnd');
-
- WriteLn('after inflateSync(): hel', PChar(uncompr));
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test deflate with preset dictionary
- *)
-{$IFDEF TEST_DICT}
-procedure test_dict_deflate(compr: Pointer; comprLen: LongInt);
-var c_stream: z_stream; (* compression stream *)
- err: Integer;
-begin
- c_stream.zalloc := NIL;
- c_stream.zfree := NIL;
- c_stream.opaque := NIL;
-
- err := deflateInit(c_stream, Z_BEST_COMPRESSION);
- CHECK_ERR(err, 'deflateInit');
-
- err := deflateSetDictionary(c_stream, dictionary, StrLen(dictionary));
- CHECK_ERR(err, 'deflateSetDictionary');
-
- dictId := c_stream.adler;
- c_stream.next_out := compr;
- c_stream.avail_out := Integer(comprLen);
-
- c_stream.next_in := hello;
- c_stream.avail_in := StrLen(hello)+1;
-
- err := deflate(c_stream, Z_FINISH);
- if err <> Z_STREAM_END then
- EXIT_ERR('deflate should report Z_STREAM_END');
-
- err := deflateEnd(c_stream);
- CHECK_ERR(err, 'deflateEnd');
-end;
-{$ENDIF}
-
-(* ===========================================================================
- * Test inflate with a preset dictionary
- *)
-{$IFDEF TEST_DICT}
-procedure test_dict_inflate(compr: Pointer; comprLen: LongInt;
- uncompr: Pointer; uncomprLen: LongInt);
-var err: Integer;
- d_stream: z_stream; (* decompression stream *)
-begin
- StrCopy(PChar(uncompr), 'garbage');
-
- d_stream.zalloc := NIL;
- d_stream.zfree := NIL;
- d_stream.opaque := NIL;
-
- d_stream.next_in := compr;
- d_stream.avail_in := Integer(comprLen);
-
- err := inflateInit(d_stream);
- CHECK_ERR(err, 'inflateInit');
-
- d_stream.next_out := uncompr;
- d_stream.avail_out := Integer(uncomprLen);
-
- while TRUE do
- begin
- err := inflate(d_stream, Z_NO_FLUSH);
- if err = Z_STREAM_END then
- break;
- if err = Z_NEED_DICT then
- begin
- if d_stream.adler <> dictId then
- EXIT_ERR('unexpected dictionary');
- err := inflateSetDictionary(d_stream, dictionary, StrLen(dictionary));
- end;
- CHECK_ERR(err, 'inflate with dict');
- end;
-
- err := inflateEnd(d_stream);
- CHECK_ERR(err, 'inflateEnd');
-
- if StrComp(PChar(uncompr), hello) <> 0 then
- EXIT_ERR('bad inflate with dict')
- else
- WriteLn('inflate with dictionary: ', PChar(uncompr));
-end;
-{$ENDIF}
-
-var compr, uncompr: Pointer;
- comprLen, uncomprLen: LongInt;
-
-begin
- if zlibVersion^ <> ZLIB_VERSION[1] then
- EXIT_ERR('Incompatible zlib version');
-
- WriteLn('zlib version: ', zlibVersion);
- WriteLn('zlib compile flags: ', Format('0x%x', [zlibCompileFlags]));
-
- comprLen := 10000 * SizeOf(Integer); (* don't overflow on MSDOS *)
- uncomprLen := comprLen;
- GetMem(compr, comprLen);
- GetMem(uncompr, uncomprLen);
- if (compr = NIL) or (uncompr = NIL) then
- EXIT_ERR('Out of memory');
- (* compr and uncompr are cleared to avoid reading uninitialized
- * data and to ensure that uncompr compresses well.
- *)
- FillChar(compr^, comprLen, 0);
- FillChar(uncompr^, uncomprLen, 0);
-
- {$IFDEF TEST_COMPRESS}
- WriteLn('** Testing compress');
- test_compress(compr, comprLen, uncompr, uncomprLen);
- {$ENDIF}
-
- {$IFDEF TEST_GZIO}
- WriteLn('** Testing gzio');
- if ParamCount >= 1 then
- test_gzio(ParamStr(1), uncompr, uncomprLen)
- else
- test_gzio(TESTFILE, uncompr, uncomprLen);
- {$ENDIF}
-
- {$IFDEF TEST_DEFLATE}
- WriteLn('** Testing deflate with small buffers');
- test_deflate(compr, comprLen);
- {$ENDIF}
- {$IFDEF TEST_INFLATE}
- WriteLn('** Testing inflate with small buffers');
- test_inflate(compr, comprLen, uncompr, uncomprLen);
- {$ENDIF}
-
- {$IFDEF TEST_DEFLATE}
- WriteLn('** Testing deflate with large buffers');
- test_large_deflate(compr, comprLen, uncompr, uncomprLen);
- {$ENDIF}
- {$IFDEF TEST_INFLATE}
- WriteLn('** Testing inflate with large buffers');
- test_large_inflate(compr, comprLen, uncompr, uncomprLen);
- {$ENDIF}
-
- {$IFDEF TEST_FLUSH}
- WriteLn('** Testing deflate with full flush');
- test_flush(compr, comprLen);
- {$ENDIF}
- {$IFDEF TEST_SYNC}
- WriteLn('** Testing inflateSync');
- test_sync(compr, comprLen, uncompr, uncomprLen);
- {$ENDIF}
- comprLen := uncomprLen;
-
- {$IFDEF TEST_DICT}
- WriteLn('** Testing deflate and inflate with preset dictionary');
- test_dict_deflate(compr, comprLen);
- test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
- {$ENDIF}
-
- FreeMem(compr, comprLen);
- FreeMem(uncompr, uncomprLen);
-end.
+++ /dev/null
-
-This directory contains a Pascal (Delphi, Kylix) interface to the
-zlib data compression library.
-
-
-Directory listing
-=================
-
-zlibd32.mak makefile for Borland C++
-example.pas usage example of zlib
-zlibpas.pas the Pascal interface to zlib
-readme.txt this file
-
-
-Compatibility notes
-===================
-
-- Although the name "zlib" would have been more normal for the
- zlibpas unit, this name is already taken by Borland's ZLib unit.
- This is somehow unfortunate, because that unit is not a genuine
- interface to the full-fledged zlib functionality, but a suite of
- class wrappers around zlib streams. Other essential features,
- such as checksums, are missing.
- It would have been more appropriate for that unit to have a name
- like "ZStreams", or something similar.
-
-- The C and zlib-supplied types int, uInt, long, uLong, etc. are
- translated directly into Pascal types of similar sizes (Integer,
- LongInt, etc.), to avoid namespace pollution. In particular,
- there is no conversion of unsigned int into a Pascal unsigned
- integer. The Word type is non-portable and has the same size
- (16 bits) both in a 16-bit and in a 32-bit environment, unlike
- Integer. Even if there is a 32-bit Cardinal type, there is no
- real need for unsigned int in zlib under a 32-bit environment.
-
-- Except for the callbacks, the zlib function interfaces are
- assuming the calling convention normally used in Pascal
- (__pascal for DOS and Windows16, __fastcall for Windows32).
- Since the cdecl keyword is used, the old Turbo Pascal does
- not work with this interface.
-
-- The gz* function interfaces are not translated, to avoid
- interfacing problems with the C runtime library. Besides,
- gzprintf(gzFile file, const char *format, ...)
- cannot be translated into Pascal.
-
-
-Legal issues
-============
-
-The zlibpas interface is:
- Copyright (C) 1995-2003 Jean-loup Gailly and Mark Adler.
- Copyright (C) 1998 by Bob Dellaca.
- Copyright (C) 2003 by Cosmin Truta.
-
-The example program is:
- Copyright (C) 1995-2003 by Jean-loup Gailly.
- Copyright (C) 1998,1999,2000 by Jacques Nomssi Nzali.
- Copyright (C) 2003 by Cosmin Truta.
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the author be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
+++ /dev/null
-# Makefile for zlib
-# For use with Delphi and C++ Builder under Win32
-# Updated for zlib 1.2.x by Cosmin Truta
-
-# ------------ Borland C++ ------------
-
-# This project uses the Delphi (fastcall/register) calling convention:
-LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl
-
-CC = bcc32
-LD = bcc32
-AR = tlib
-# do not use "-pr" in CFLAGS
-CFLAGS = -a -d -k- -O2 $(LOC)
-LDFLAGS =
-
-
-# variables
-ZLIB_LIB = zlib.lib
-
-OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
-OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
-OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
-OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
-
-
-# targets
-all: $(ZLIB_LIB) example.exe minigzip.exe
-
-.c.obj:
- $(CC) -c $(CFLAGS) $*.c
-
-adler32.obj: adler32.c zlib.h zconf.h
-
-compress.obj: compress.c zlib.h zconf.h
-
-crc32.obj: crc32.c zlib.h zconf.h crc32.h
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
-
-gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
-
-gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
-
-gzread.obj: gzread.c zlib.h zconf.h gzguts.h
-
-gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
-
-infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
- inffast.h inffixed.h
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
- inffast.h
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
- inffast.h inffixed.h
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
-
-trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
-
-uncompr.obj: uncompr.c zlib.h zconf.h
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
-
-example.obj: test/example.c zlib.h zconf.h
-
-minigzip.obj: test/minigzip.c zlib.h zconf.h
-
-
-# For the sake of the old Borland make,
-# the command line is cut to fit in the MS-DOS 128 byte limit:
-$(ZLIB_LIB): $(OBJ1) $(OBJ2)
- -del $(ZLIB_LIB)
- $(AR) $(ZLIB_LIB) $(OBJP1)
- $(AR) $(ZLIB_LIB) $(OBJP2)
-
-
-# testing
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-example.exe: example.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
-
-minigzip.exe: minigzip.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
-
-
-# cleanup
-clean:
- -del *.obj
- -del *.exe
- -del *.lib
- -del *.tds
- -del zlib.bak
- -del foo.gz
-
+++ /dev/null
-(* zlibpas -- Pascal interface to the zlib data compression library
- *
- * Copyright (C) 2003 Cosmin Truta.
- * Derived from original sources by Bob Dellaca.
- * For conditions of distribution and use, see copyright notice in readme.txt
- *)
-
-unit zlibpas;
-
-interface
-
-const
- ZLIB_VERSION = '1.2.8';
- ZLIB_VERNUM = $1280;
-
-type
- alloc_func = function(opaque: Pointer; items, size: Integer): Pointer;
- cdecl;
- free_func = procedure(opaque, address: Pointer);
- cdecl;
-
- in_func = function(opaque: Pointer; var buf: PByte): Integer;
- cdecl;
- out_func = function(opaque: Pointer; buf: PByte; size: Integer): Integer;
- cdecl;
-
- z_streamp = ^z_stream;
- z_stream = packed record
- next_in: PChar; (* next input byte *)
- avail_in: Integer; (* number of bytes available at next_in *)
- total_in: LongInt; (* total nb of input bytes read so far *)
-
- next_out: PChar; (* next output byte should be put there *)
- avail_out: Integer; (* remaining free space at next_out *)
- total_out: LongInt; (* total nb of bytes output so far *)
-
- msg: PChar; (* last error message, NULL if no error *)
- state: Pointer; (* not visible by applications *)
-
- zalloc: alloc_func; (* used to allocate the internal state *)
- zfree: free_func; (* used to free the internal state *)
- opaque: Pointer; (* private data object passed to zalloc and zfree *)
-
- data_type: Integer; (* best guess about the data type: ascii or binary *)
- adler: LongInt; (* adler32 value of the uncompressed data *)
- reserved: LongInt; (* reserved for future use *)
- end;
-
- gz_headerp = ^gz_header;
- gz_header = packed record
- text: Integer; (* true if compressed data believed to be text *)
- time: LongInt; (* modification time *)
- xflags: Integer; (* extra flags (not used when writing a gzip file) *)
- os: Integer; (* operating system *)
- extra: PChar; (* pointer to extra field or Z_NULL if none *)
- extra_len: Integer; (* extra field length (valid if extra != Z_NULL) *)
- extra_max: Integer; (* space at extra (only when reading header) *)
- name: PChar; (* pointer to zero-terminated file name or Z_NULL *)
- name_max: Integer; (* space at name (only when reading header) *)
- comment: PChar; (* pointer to zero-terminated comment or Z_NULL *)
- comm_max: Integer; (* space at comment (only when reading header) *)
- hcrc: Integer; (* true if there was or will be a header crc *)
- done: Integer; (* true when done reading gzip header *)
- end;
-
-(* constants *)
-const
- Z_NO_FLUSH = 0;
- Z_PARTIAL_FLUSH = 1;
- Z_SYNC_FLUSH = 2;
- Z_FULL_FLUSH = 3;
- Z_FINISH = 4;
- Z_BLOCK = 5;
- Z_TREES = 6;
-
- Z_OK = 0;
- Z_STREAM_END = 1;
- Z_NEED_DICT = 2;
- Z_ERRNO = -1;
- Z_STREAM_ERROR = -2;
- Z_DATA_ERROR = -3;
- Z_MEM_ERROR = -4;
- Z_BUF_ERROR = -5;
- Z_VERSION_ERROR = -6;
-
- Z_NO_COMPRESSION = 0;
- Z_BEST_SPEED = 1;
- Z_BEST_COMPRESSION = 9;
- Z_DEFAULT_COMPRESSION = -1;
-
- Z_FILTERED = 1;
- Z_HUFFMAN_ONLY = 2;
- Z_RLE = 3;
- Z_FIXED = 4;
- Z_DEFAULT_STRATEGY = 0;
-
- Z_BINARY = 0;
- Z_TEXT = 1;
- Z_ASCII = 1;
- Z_UNKNOWN = 2;
-
- Z_DEFLATED = 8;
-
-(* basic functions *)
-function zlibVersion: PChar;
-function deflateInit(var strm: z_stream; level: Integer): Integer;
-function deflate(var strm: z_stream; flush: Integer): Integer;
-function deflateEnd(var strm: z_stream): Integer;
-function inflateInit(var strm: z_stream): Integer;
-function inflate(var strm: z_stream; flush: Integer): Integer;
-function inflateEnd(var strm: z_stream): Integer;
-
-(* advanced functions *)
-function deflateInit2(var strm: z_stream; level, method, windowBits,
- memLevel, strategy: Integer): Integer;
-function deflateSetDictionary(var strm: z_stream; const dictionary: PChar;
- dictLength: Integer): Integer;
-function deflateCopy(var dest, source: z_stream): Integer;
-function deflateReset(var strm: z_stream): Integer;
-function deflateParams(var strm: z_stream; level, strategy: Integer): Integer;
-function deflateTune(var strm: z_stream; good_length, max_lazy, nice_length, max_chain: Integer): Integer;
-function deflateBound(var strm: z_stream; sourceLen: LongInt): LongInt;
-function deflatePending(var strm: z_stream; var pending: Integer; var bits: Integer): Integer;
-function deflatePrime(var strm: z_stream; bits, value: Integer): Integer;
-function deflateSetHeader(var strm: z_stream; head: gz_header): Integer;
-function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
-function inflateSetDictionary(var strm: z_stream; const dictionary: PChar;
- dictLength: Integer): Integer;
-function inflateSync(var strm: z_stream): Integer;
-function inflateCopy(var dest, source: z_stream): Integer;
-function inflateReset(var strm: z_stream): Integer;
-function inflateReset2(var strm: z_stream; windowBits: Integer): Integer;
-function inflatePrime(var strm: z_stream; bits, value: Integer): Integer;
-function inflateMark(var strm: z_stream): LongInt;
-function inflateGetHeader(var strm: z_stream; var head: gz_header): Integer;
-function inflateBackInit(var strm: z_stream;
- windowBits: Integer; window: PChar): Integer;
-function inflateBack(var strm: z_stream; in_fn: in_func; in_desc: Pointer;
- out_fn: out_func; out_desc: Pointer): Integer;
-function inflateBackEnd(var strm: z_stream): Integer;
-function zlibCompileFlags: LongInt;
-
-(* utility functions *)
-function compress(dest: PChar; var destLen: LongInt;
- const source: PChar; sourceLen: LongInt): Integer;
-function compress2(dest: PChar; var destLen: LongInt;
- const source: PChar; sourceLen: LongInt;
- level: Integer): Integer;
-function compressBound(sourceLen: LongInt): LongInt;
-function uncompress(dest: PChar; var destLen: LongInt;
- const source: PChar; sourceLen: LongInt): Integer;
-
-(* checksum functions *)
-function adler32(adler: LongInt; const buf: PChar; len: Integer): LongInt;
-function adler32_combine(adler1, adler2, len2: LongInt): LongInt;
-function crc32(crc: LongInt; const buf: PChar; len: Integer): LongInt;
-function crc32_combine(crc1, crc2, len2: LongInt): LongInt;
-
-(* various hacks, don't look :) *)
-function deflateInit_(var strm: z_stream; level: Integer;
- const version: PChar; stream_size: Integer): Integer;
-function inflateInit_(var strm: z_stream; const version: PChar;
- stream_size: Integer): Integer;
-function deflateInit2_(var strm: z_stream;
- level, method, windowBits, memLevel, strategy: Integer;
- const version: PChar; stream_size: Integer): Integer;
-function inflateInit2_(var strm: z_stream; windowBits: Integer;
- const version: PChar; stream_size: Integer): Integer;
-function inflateBackInit_(var strm: z_stream;
- windowBits: Integer; window: PChar;
- const version: PChar; stream_size: Integer): Integer;
-
-
-implementation
-
-{$L adler32.obj}
-{$L compress.obj}
-{$L crc32.obj}
-{$L deflate.obj}
-{$L infback.obj}
-{$L inffast.obj}
-{$L inflate.obj}
-{$L inftrees.obj}
-{$L trees.obj}
-{$L uncompr.obj}
-{$L zutil.obj}
-
-function adler32; external;
-function adler32_combine; external;
-function compress; external;
-function compress2; external;
-function compressBound; external;
-function crc32; external;
-function crc32_combine; external;
-function deflate; external;
-function deflateBound; external;
-function deflateCopy; external;
-function deflateEnd; external;
-function deflateInit_; external;
-function deflateInit2_; external;
-function deflateParams; external;
-function deflatePending; external;
-function deflatePrime; external;
-function deflateReset; external;
-function deflateSetDictionary; external;
-function deflateSetHeader; external;
-function deflateTune; external;
-function inflate; external;
-function inflateBack; external;
-function inflateBackEnd; external;
-function inflateBackInit_; external;
-function inflateCopy; external;
-function inflateEnd; external;
-function inflateGetHeader; external;
-function inflateInit_; external;
-function inflateInit2_; external;
-function inflateMark; external;
-function inflatePrime; external;
-function inflateReset; external;
-function inflateReset2; external;
-function inflateSetDictionary; external;
-function inflateSync; external;
-function uncompress; external;
-function zlibCompileFlags; external;
-function zlibVersion; external;
-
-function deflateInit(var strm: z_stream; level: Integer): Integer;
-begin
- Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function deflateInit2(var strm: z_stream; level, method, windowBits, memLevel,
- strategy: Integer): Integer;
-begin
- Result := deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
- ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateInit(var strm: z_stream): Integer;
-begin
- Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
-begin
- Result := inflateInit2_(strm, windowBits, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateBackInit(var strm: z_stream;
- windowBits: Integer; window: PChar): Integer;
-begin
- Result := inflateBackInit_(strm, windowBits, window,
- ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function _malloc(Size: Integer): Pointer; cdecl;
-begin
- GetMem(Result, Size);
-end;
-
-procedure _free(Block: Pointer); cdecl;
-begin
- FreeMem(Block);
-end;
-
-procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
-begin
- FillChar(P^, count, B);
-end;
-
-procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
-begin
- Move(source^, dest^, count);
-end;
-
-end.
+++ /dev/null
-CFLAGS=-O
-
-puff: puff.o pufftest.o
-
-puff.o: puff.h
-
-pufftest.o: puff.h
-
-test: puff
- puff zeros.raw
-
-puft: puff.c puff.h pufftest.o
- cc -fprofile-arcs -ftest-coverage -o puft puff.c pufftest.o
-
-# puff full coverage test (should say 100%)
-cov: puft
- @rm -f *.gcov *.gcda
- @puft -w zeros.raw 2>&1 | cat > /dev/null
- @echo '04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
- @echo '00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
- @echo '00 00 00 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 254
- @echo '00 01 00 fe ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
- @echo '01 01 00 fe ff 0a' | xxd -r -p | puft -f 2>&1 | cat > /dev/null
- @echo '02 7e ff ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
- @echo '02' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
- @echo '04 80 49 92 24 49 92 24 0f b4 ff ff c3 04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
- @echo '04 80 49 92 24 49 92 24 71 ff ff 93 11 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 249
- @echo '04 c0 81 08 00 00 00 00 20 7f eb 0b 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
- @echo '0b 00 00' | xxd -r -p | puft -f 2>&1 | cat > /dev/null
- @echo '1a 07' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
- @echo '0c c0 81 00 00 00 00 00 90 ff 6b 04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 245
- @puft -f zeros.raw 2>&1 | cat > /dev/null
- @echo 'fc 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 253
- @echo '04 00 fe ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 252
- @echo '04 00 24 49' | xxd -r -p | puft 2> /dev/null || test $$? -eq 251
- @echo '04 80 49 92 24 49 92 24 0f b4 ff ff c3 84' | xxd -r -p | puft 2> /dev/null || test $$? -eq 248
- @echo '04 00 24 e9 ff ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 250
- @echo '04 00 24 e9 ff 6d' | xxd -r -p | puft 2> /dev/null || test $$? -eq 247
- @gcov -n puff.c
-
-clean:
- rm -f puff puft *.o *.gc*
+++ /dev/null
-Puff -- A Simple Inflate
-3 Mar 2003
-Mark Adler
-madler@alumni.caltech.edu
-
-What this is --
-
-puff.c provides the routine puff() to decompress the deflate data format. It
-does so more slowly than zlib, but the code is about one-fifth the size of the
-inflate code in zlib, and written to be very easy to read.
-
-Why I wrote this --
-
-puff.c was written to document the deflate format unambiguously, by virtue of
-being working C code. It is meant to supplement RFC 1951, which formally
-describes the deflate format. I have received many questions on details of the
-deflate format, and I hope that reading this code will answer those questions.
-puff.c is heavily commented with details of the deflate format, especially
-those little nooks and cranies of the format that might not be obvious from a
-specification.
-
-puff.c may also be useful in applications where code size or memory usage is a
-very limited resource, and speed is not as important.
-
-How to use it --
-
-Well, most likely you should just be reading puff.c and using zlib for actual
-applications, but if you must ...
-
-Include puff.h in your code, which provides this prototype:
-
-int puff(unsigned char *dest, /* pointer to destination pointer */
- unsigned long *destlen, /* amount of output space */
- unsigned char *source, /* pointer to source data pointer */
- unsigned long *sourcelen); /* amount of input available */
-
-Then you can call puff() to decompress a deflate stream that is in memory in
-its entirety at source, to a sufficiently sized block of memory for the
-decompressed data at dest. puff() is the only external symbol in puff.c The
-only C library functions that puff.c needs are setjmp() and longjmp(), which
-are used to simplify error checking in the code to improve readabilty. puff.c
-does no memory allocation, and uses less than 2K bytes off of the stack.
-
-If destlen is not enough space for the uncompressed data, then inflate will
-return an error without writing more than destlen bytes. Note that this means
-that in order to decompress the deflate data successfully, you need to know
-the size of the uncompressed data ahead of time.
-
-If needed, puff() can determine the size of the uncompressed data with no
-output space. This is done by passing dest equal to (unsigned char *)0. Then
-the initial value of *destlen is ignored and *destlen is set to the length of
-the uncompressed data. So if the size of the uncompressed data is not known,
-then two passes of puff() can be used--first to determine the size, and second
-to do the actual inflation after allocating the appropriate memory. Not
-pretty, but it works. (This is one of the reasons you should be using zlib.)
-
-The deflate format is self-terminating. If the deflate stream does not end
-in *sourcelen bytes, puff() will return an error without reading at or past
-endsource.
-
-On return, *sourcelen is updated to the amount of input data consumed, and
-*destlen is updated to the size of the uncompressed data. See the comments
-in puff.c for the possible return codes for puff().
+++ /dev/null
-/*
- * puff.c
- * Copyright (C) 2002-2013 Mark Adler
- * For conditions of distribution and use, see copyright notice in puff.h
- * version 2.3, 21 Jan 2013
- *
- * puff.c is a simple inflate written to be an unambiguous way to specify the
- * deflate format. It is not written for speed but rather simplicity. As a
- * side benefit, this code might actually be useful when small code is more
- * important than speed, such as bootstrap applications. For typical deflate
- * data, zlib's inflate() is about four times as fast as puff(). zlib's
- * inflate compiles to around 20K on my machine, whereas puff.c compiles to
- * around 4K on my machine (a PowerPC using GNU cc). If the faster decode()
- * function here is used, then puff() is only twice as slow as zlib's
- * inflate().
- *
- * All dynamically allocated memory comes from the stack. The stack required
- * is less than 2K bytes. This code is compatible with 16-bit int's and
- * assumes that long's are at least 32 bits. puff.c uses the short data type,
- * assumed to be 16 bits, for arrays in order to to conserve memory. The code
- * works whether integers are stored big endian or little endian.
- *
- * In the comments below are "Format notes" that describe the inflate process
- * and document some of the less obvious aspects of the format. This source
- * code is meant to supplement RFC 1951, which formally describes the deflate
- * format:
- *
- * http://www.zlib.org/rfc-deflate.html
- */
-
-/*
- * Change history:
- *
- * 1.0 10 Feb 2002 - First version
- * 1.1 17 Feb 2002 - Clarifications of some comments and notes
- * - Update puff() dest and source pointers on negative
- * errors to facilitate debugging deflators
- * - Remove longest from struct huffman -- not needed
- * - Simplify offs[] index in construct()
- * - Add input size and checking, using longjmp() to
- * maintain easy readability
- * - Use short data type for large arrays
- * - Use pointers instead of long to specify source and
- * destination sizes to avoid arbitrary 4 GB limits
- * 1.2 17 Mar 2002 - Add faster version of decode(), doubles speed (!),
- * but leave simple version for readabilty
- * - Make sure invalid distances detected if pointers
- * are 16 bits
- * - Fix fixed codes table error
- * - Provide a scanning mode for determining size of
- * uncompressed data
- * 1.3 20 Mar 2002 - Go back to lengths for puff() parameters [Gailly]
- * - Add a puff.h file for the interface
- * - Add braces in puff() for else do [Gailly]
- * - Use indexes instead of pointers for readability
- * 1.4 31 Mar 2002 - Simplify construct() code set check
- * - Fix some comments
- * - Add FIXLCODES #define
- * 1.5 6 Apr 2002 - Minor comment fixes
- * 1.6 7 Aug 2002 - Minor format changes
- * 1.7 3 Mar 2003 - Added test code for distribution
- * - Added zlib-like license
- * 1.8 9 Jan 2004 - Added some comments on no distance codes case
- * 1.9 21 Feb 2008 - Fix bug on 16-bit integer architectures [Pohland]
- * - Catch missing end-of-block symbol error
- * 2.0 25 Jul 2008 - Add #define to permit distance too far back
- * - Add option in TEST code for puff to write the data
- * - Add option in TEST code to skip input bytes
- * - Allow TEST code to read from piped stdin
- * 2.1 4 Apr 2010 - Avoid variable initialization for happier compilers
- * - Avoid unsigned comparisons for even happier compilers
- * 2.2 25 Apr 2010 - Fix bug in variable initializations [Oberhumer]
- * - Add const where appropriate [Oberhumer]
- * - Split if's and ?'s for coverage testing
- * - Break out test code to separate file
- * - Move NIL to puff.h
- * - Allow incomplete code only if single code length is 1
- * - Add full code coverage test to Makefile
- * 2.3 21 Jan 2013 - Check for invalid code length codes in dynamic blocks
- */
-
-#include <setjmp.h> /* for setjmp(), longjmp(), and jmp_buf */
-#include "puff.h" /* prototype for puff() */
-
-#define local static /* for local function definitions */
-
-/*
- * Maximums for allocations and loops. It is not useful to change these --
- * they are fixed by the deflate format.
- */
-#define MAXBITS 15 /* maximum bits in a code */
-#define MAXLCODES 286 /* maximum number of literal/length codes */
-#define MAXDCODES 30 /* maximum number of distance codes */
-#define MAXCODES (MAXLCODES+MAXDCODES) /* maximum codes lengths to read */
-#define FIXLCODES 288 /* number of fixed literal/length codes */
-
-/* input and output state */
-struct state {
- /* output state */
- unsigned char *out; /* output buffer */
- unsigned long outlen; /* available space at out */
- unsigned long outcnt; /* bytes written to out so far */
-
- /* input state */
- const unsigned char *in; /* input buffer */
- unsigned long inlen; /* available input at in */
- unsigned long incnt; /* bytes read so far */
- int bitbuf; /* bit buffer */
- int bitcnt; /* number of bits in bit buffer */
-
- /* input limit error return state for bits() and decode() */
- jmp_buf env;
-};
-
-/*
- * Return need bits from the input stream. This always leaves less than
- * eight bits in the buffer. bits() works properly for need == 0.
- *
- * Format notes:
- *
- * - Bits are stored in bytes from the least significant bit to the most
- * significant bit. Therefore bits are dropped from the bottom of the bit
- * buffer, using shift right, and new bytes are appended to the top of the
- * bit buffer, using shift left.
- */
-local int bits(struct state *s, int need)
-{
- long val; /* bit accumulator (can use up to 20 bits) */
-
- /* load at least need bits into val */
- val = s->bitbuf;
- while (s->bitcnt < need) {
- if (s->incnt == s->inlen)
- longjmp(s->env, 1); /* out of input */
- val |= (long)(s->in[s->incnt++]) << s->bitcnt; /* load eight bits */
- s->bitcnt += 8;
- }
-
- /* drop need bits and update buffer, always zero to seven bits left */
- s->bitbuf = (int)(val >> need);
- s->bitcnt -= need;
-
- /* return need bits, zeroing the bits above that */
- return (int)(val & ((1L << need) - 1));
-}
-
-/*
- * Process a stored block.
- *
- * Format notes:
- *
- * - After the two-bit stored block type (00), the stored block length and
- * stored bytes are byte-aligned for fast copying. Therefore any leftover
- * bits in the byte that has the last bit of the type, as many as seven, are
- * discarded. The value of the discarded bits are not defined and should not
- * be checked against any expectation.
- *
- * - The second inverted copy of the stored block length does not have to be
- * checked, but it's probably a good idea to do so anyway.
- *
- * - A stored block can have zero length. This is sometimes used to byte-align
- * subsets of the compressed data for random access or partial recovery.
- */
-local int stored(struct state *s)
-{
- unsigned len; /* length of stored block */
-
- /* discard leftover bits from current byte (assumes s->bitcnt < 8) */
- s->bitbuf = 0;
- s->bitcnt = 0;
-
- /* get length and check against its one's complement */
- if (s->incnt + 4 > s->inlen)
- return 2; /* not enough input */
- len = s->in[s->incnt++];
- len |= s->in[s->incnt++] << 8;
- if (s->in[s->incnt++] != (~len & 0xff) ||
- s->in[s->incnt++] != ((~len >> 8) & 0xff))
- return -2; /* didn't match complement! */
-
- /* copy len bytes from in to out */
- if (s->incnt + len > s->inlen)
- return 2; /* not enough input */
- if (s->out != NIL) {
- if (s->outcnt + len > s->outlen)
- return 1; /* not enough output space */
- while (len--)
- s->out[s->outcnt++] = s->in[s->incnt++];
- }
- else { /* just scanning */
- s->outcnt += len;
- s->incnt += len;
- }
-
- /* done with a valid stored block */
- return 0;
-}
-
-/*
- * Huffman code decoding tables. count[1..MAXBITS] is the number of symbols of
- * each length, which for a canonical code are stepped through in order.
- * symbol[] are the symbol values in canonical order, where the number of
- * entries is the sum of the counts in count[]. The decoding process can be
- * seen in the function decode() below.
- */
-struct huffman {
- short *count; /* number of symbols of each length */
- short *symbol; /* canonically ordered symbols */
-};
-
-/*
- * Decode a code from the stream s using huffman table h. Return the symbol or
- * a negative value if there is an error. If all of the lengths are zero, i.e.
- * an empty code, or if the code is incomplete and an invalid code is received,
- * then -10 is returned after reading MAXBITS bits.
- *
- * Format notes:
- *
- * - The codes as stored in the compressed data are bit-reversed relative to
- * a simple integer ordering of codes of the same lengths. Hence below the
- * bits are pulled from the compressed data one at a time and used to
- * build the code value reversed from what is in the stream in order to
- * permit simple integer comparisons for decoding. A table-based decoding
- * scheme (as used in zlib) does not need to do this reversal.
- *
- * - The first code for the shortest length is all zeros. Subsequent codes of
- * the same length are simply integer increments of the previous code. When
- * moving up a length, a zero bit is appended to the code. For a complete
- * code, the last code of the longest length will be all ones.
- *
- * - Incomplete codes are handled by this decoder, since they are permitted
- * in the deflate format. See the format notes for fixed() and dynamic().
- */
-#ifdef SLOW
-local int decode(struct state *s, const struct huffman *h)
-{
- int len; /* current number of bits in code */
- int code; /* len bits being decoded */
- int first; /* first code of length len */
- int count; /* number of codes of length len */
- int index; /* index of first code of length len in symbol table */
-
- code = first = index = 0;
- for (len = 1; len <= MAXBITS; len++) {
- code |= bits(s, 1); /* get next bit */
- count = h->count[len];
- if (code - count < first) /* if length len, return symbol */
- return h->symbol[index + (code - first)];
- index += count; /* else update for next length */
- first += count;
- first <<= 1;
- code <<= 1;
- }
- return -10; /* ran out of codes */
-}
-
-/*
- * A faster version of decode() for real applications of this code. It's not
- * as readable, but it makes puff() twice as fast. And it only makes the code
- * a few percent larger.
- */
-#else /* !SLOW */
-local int decode(struct state *s, const struct huffman *h)
-{
- int len; /* current number of bits in code */
- int code; /* len bits being decoded */
- int first; /* first code of length len */
- int count; /* number of codes of length len */
- int index; /* index of first code of length len in symbol table */
- int bitbuf; /* bits from stream */
- int left; /* bits left in next or left to process */
- short *next; /* next number of codes */
-
- bitbuf = s->bitbuf;
- left = s->bitcnt;
- code = first = index = 0;
- len = 1;
- next = h->count + 1;
- while (1) {
- while (left--) {
- code |= bitbuf & 1;
- bitbuf >>= 1;
- count = *next++;
- if (code - count < first) { /* if length len, return symbol */
- s->bitbuf = bitbuf;
- s->bitcnt = (s->bitcnt - len) & 7;
- return h->symbol[index + (code - first)];
- }
- index += count; /* else update for next length */
- first += count;
- first <<= 1;
- code <<= 1;
- len++;
- }
- left = (MAXBITS+1) - len;
- if (left == 0)
- break;
- if (s->incnt == s->inlen)
- longjmp(s->env, 1); /* out of input */
- bitbuf = s->in[s->incnt++];
- if (left > 8)
- left = 8;
- }
- return -10; /* ran out of codes */
-}
-#endif /* SLOW */
-
-/*
- * Given the list of code lengths length[0..n-1] representing a canonical
- * Huffman code for n symbols, construct the tables required to decode those
- * codes. Those tables are the number of codes of each length, and the symbols
- * sorted by length, retaining their original order within each length. The
- * return value is zero for a complete code set, negative for an over-
- * subscribed code set, and positive for an incomplete code set. The tables
- * can be used if the return value is zero or positive, but they cannot be used
- * if the return value is negative. If the return value is zero, it is not
- * possible for decode() using that table to return an error--any stream of
- * enough bits will resolve to a symbol. If the return value is positive, then
- * it is possible for decode() using that table to return an error for received
- * codes past the end of the incomplete lengths.
- *
- * Not used by decode(), but used for error checking, h->count[0] is the number
- * of the n symbols not in the code. So n - h->count[0] is the number of
- * codes. This is useful for checking for incomplete codes that have more than
- * one symbol, which is an error in a dynamic block.
- *
- * Assumption: for all i in 0..n-1, 0 <= length[i] <= MAXBITS
- * This is assured by the construction of the length arrays in dynamic() and
- * fixed() and is not verified by construct().
- *
- * Format notes:
- *
- * - Permitted and expected examples of incomplete codes are one of the fixed
- * codes and any code with a single symbol which in deflate is coded as one
- * bit instead of zero bits. See the format notes for fixed() and dynamic().
- *
- * - Within a given code length, the symbols are kept in ascending order for
- * the code bits definition.
- */
-local int construct(struct huffman *h, const short *length, int n)
-{
- int symbol; /* current symbol when stepping through length[] */
- int len; /* current length when stepping through h->count[] */
- int left; /* number of possible codes left of current length */
- short offs[MAXBITS+1]; /* offsets in symbol table for each length */
-
- /* count number of codes of each length */
- for (len = 0; len <= MAXBITS; len++)
- h->count[len] = 0;
- for (symbol = 0; symbol < n; symbol++)
- (h->count[length[symbol]])++; /* assumes lengths are within bounds */
- if (h->count[0] == n) /* no codes! */
- return 0; /* complete, but decode() will fail */
-
- /* check for an over-subscribed or incomplete set of lengths */
- left = 1; /* one possible code of zero length */
- for (len = 1; len <= MAXBITS; len++) {
- left <<= 1; /* one more bit, double codes left */
- left -= h->count[len]; /* deduct count from possible codes */
- if (left < 0)
- return left; /* over-subscribed--return negative */
- } /* left > 0 means incomplete */
-
- /* generate offsets into symbol table for each length for sorting */
- offs[1] = 0;
- for (len = 1; len < MAXBITS; len++)
- offs[len + 1] = offs[len] + h->count[len];
-
- /*
- * put symbols in table sorted by length, by symbol order within each
- * length
- */
- for (symbol = 0; symbol < n; symbol++)
- if (length[symbol] != 0)
- h->symbol[offs[length[symbol]]++] = symbol;
-
- /* return zero for complete set, positive for incomplete set */
- return left;
-}
-
-/*
- * Decode literal/length and distance codes until an end-of-block code.
- *
- * Format notes:
- *
- * - Compressed data that is after the block type if fixed or after the code
- * description if dynamic is a combination of literals and length/distance
- * pairs terminated by and end-of-block code. Literals are simply Huffman
- * coded bytes. A length/distance pair is a coded length followed by a
- * coded distance to represent a string that occurs earlier in the
- * uncompressed data that occurs again at the current location.
- *
- * - Literals, lengths, and the end-of-block code are combined into a single
- * code of up to 286 symbols. They are 256 literals (0..255), 29 length
- * symbols (257..285), and the end-of-block symbol (256).
- *
- * - There are 256 possible lengths (3..258), and so 29 symbols are not enough
- * to represent all of those. Lengths 3..10 and 258 are in fact represented
- * by just a length symbol. Lengths 11..257 are represented as a symbol and
- * some number of extra bits that are added as an integer to the base length
- * of the length symbol. The number of extra bits is determined by the base
- * length symbol. These are in the static arrays below, lens[] for the base
- * lengths and lext[] for the corresponding number of extra bits.
- *
- * - The reason that 258 gets its own symbol is that the longest length is used
- * often in highly redundant files. Note that 258 can also be coded as the
- * base value 227 plus the maximum extra value of 31. While a good deflate
- * should never do this, it is not an error, and should be decoded properly.
- *
- * - If a length is decoded, including its extra bits if any, then it is
- * followed a distance code. There are up to 30 distance symbols. Again
- * there are many more possible distances (1..32768), so extra bits are added
- * to a base value represented by the symbol. The distances 1..4 get their
- * own symbol, but the rest require extra bits. The base distances and
- * corresponding number of extra bits are below in the static arrays dist[]
- * and dext[].
- *
- * - Literal bytes are simply written to the output. A length/distance pair is
- * an instruction to copy previously uncompressed bytes to the output. The
- * copy is from distance bytes back in the output stream, copying for length
- * bytes.
- *
- * - Distances pointing before the beginning of the output data are not
- * permitted.
- *
- * - Overlapped copies, where the length is greater than the distance, are
- * allowed and common. For example, a distance of one and a length of 258
- * simply copies the last byte 258 times. A distance of four and a length of
- * twelve copies the last four bytes three times. A simple forward copy
- * ignoring whether the length is greater than the distance or not implements
- * this correctly. You should not use memcpy() since its behavior is not
- * defined for overlapped arrays. You should not use memmove() or bcopy()
- * since though their behavior -is- defined for overlapping arrays, it is
- * defined to do the wrong thing in this case.
- */
-local int codes(struct state *s,
- const struct huffman *lencode,
- const struct huffman *distcode)
-{
- int symbol; /* decoded symbol */
- int len; /* length for copy */
- unsigned dist; /* distance for copy */
- static const short lens[29] = { /* Size base for length codes 257..285 */
- 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
- 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258};
- static const short lext[29] = { /* Extra bits for length codes 257..285 */
- 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
- 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
- static const short dists[30] = { /* Offset base for distance codes 0..29 */
- 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
- 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
- 8193, 12289, 16385, 24577};
- static const short dext[30] = { /* Extra bits for distance codes 0..29 */
- 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
- 7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
- 12, 12, 13, 13};
-
- /* decode literals and length/distance pairs */
- do {
- symbol = decode(s, lencode);
- if (symbol < 0)
- return symbol; /* invalid symbol */
- if (symbol < 256) { /* literal: symbol is the byte */
- /* write out the literal */
- if (s->out != NIL) {
- if (s->outcnt == s->outlen)
- return 1;
- s->out[s->outcnt] = symbol;
- }
- s->outcnt++;
- }
- else if (symbol > 256) { /* length */
- /* get and compute length */
- symbol -= 257;
- if (symbol >= 29)
- return -10; /* invalid fixed code */
- len = lens[symbol] + bits(s, lext[symbol]);
-
- /* get and check distance */
- symbol = decode(s, distcode);
- if (symbol < 0)
- return symbol; /* invalid symbol */
- dist = dists[symbol] + bits(s, dext[symbol]);
-#ifndef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
- if (dist > s->outcnt)
- return -11; /* distance too far back */
-#endif
-
- /* copy length bytes from distance bytes back */
- if (s->out != NIL) {
- if (s->outcnt + len > s->outlen)
- return 1;
- while (len--) {
- s->out[s->outcnt] =
-#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
- dist > s->outcnt ?
- 0 :
-#endif
- s->out[s->outcnt - dist];
- s->outcnt++;
- }
- }
- else
- s->outcnt += len;
- }
- } while (symbol != 256); /* end of block symbol */
-
- /* done with a valid fixed or dynamic block */
- return 0;
-}
-
-/*
- * Process a fixed codes block.
- *
- * Format notes:
- *
- * - This block type can be useful for compressing small amounts of data for
- * which the size of the code descriptions in a dynamic block exceeds the
- * benefit of custom codes for that block. For fixed codes, no bits are
- * spent on code descriptions. Instead the code lengths for literal/length
- * codes and distance codes are fixed. The specific lengths for each symbol
- * can be seen in the "for" loops below.
- *
- * - The literal/length code is complete, but has two symbols that are invalid
- * and should result in an error if received. This cannot be implemented
- * simply as an incomplete code since those two symbols are in the "middle"
- * of the code. They are eight bits long and the longest literal/length\
- * code is nine bits. Therefore the code must be constructed with those
- * symbols, and the invalid symbols must be detected after decoding.
- *
- * - The fixed distance codes also have two invalid symbols that should result
- * in an error if received. Since all of the distance codes are the same
- * length, this can be implemented as an incomplete code. Then the invalid
- * codes are detected while decoding.
- */
-local int fixed(struct state *s)
-{
- static int virgin = 1;
- static short lencnt[MAXBITS+1], lensym[FIXLCODES];
- static short distcnt[MAXBITS+1], distsym[MAXDCODES];
- static struct huffman lencode, distcode;
-
- /* build fixed huffman tables if first call (may not be thread safe) */
- if (virgin) {
- int symbol;
- short lengths[FIXLCODES];
-
- /* construct lencode and distcode */
- lencode.count = lencnt;
- lencode.symbol = lensym;
- distcode.count = distcnt;
- distcode.symbol = distsym;
-
- /* literal/length table */
- for (symbol = 0; symbol < 144; symbol++)
- lengths[symbol] = 8;
- for (; symbol < 256; symbol++)
- lengths[symbol] = 9;
- for (; symbol < 280; symbol++)
- lengths[symbol] = 7;
- for (; symbol < FIXLCODES; symbol++)
- lengths[symbol] = 8;
- construct(&lencode, lengths, FIXLCODES);
-
- /* distance table */
- for (symbol = 0; symbol < MAXDCODES; symbol++)
- lengths[symbol] = 5;
- construct(&distcode, lengths, MAXDCODES);
-
- /* do this just once */
- virgin = 0;
- }
-
- /* decode data until end-of-block code */
- return codes(s, &lencode, &distcode);
-}
-
-/*
- * Process a dynamic codes block.
- *
- * Format notes:
- *
- * - A dynamic block starts with a description of the literal/length and
- * distance codes for that block. New dynamic blocks allow the compressor to
- * rapidly adapt to changing data with new codes optimized for that data.
- *
- * - The codes used by the deflate format are "canonical", which means that
- * the actual bits of the codes are generated in an unambiguous way simply
- * from the number of bits in each code. Therefore the code descriptions
- * are simply a list of code lengths for each symbol.
- *
- * - The code lengths are stored in order for the symbols, so lengths are
- * provided for each of the literal/length symbols, and for each of the
- * distance symbols.
- *
- * - If a symbol is not used in the block, this is represented by a zero as
- * as the code length. This does not mean a zero-length code, but rather
- * that no code should be created for this symbol. There is no way in the
- * deflate format to represent a zero-length code.
- *
- * - The maximum number of bits in a code is 15, so the possible lengths for
- * any code are 1..15.
- *
- * - The fact that a length of zero is not permitted for a code has an
- * interesting consequence. Normally if only one symbol is used for a given
- * code, then in fact that code could be represented with zero bits. However
- * in deflate, that code has to be at least one bit. So for example, if
- * only a single distance base symbol appears in a block, then it will be
- * represented by a single code of length one, in particular one 0 bit. This
- * is an incomplete code, since if a 1 bit is received, it has no meaning,
- * and should result in an error. So incomplete distance codes of one symbol
- * should be permitted, and the receipt of invalid codes should be handled.
- *
- * - It is also possible to have a single literal/length code, but that code
- * must be the end-of-block code, since every dynamic block has one. This
- * is not the most efficient way to create an empty block (an empty fixed
- * block is fewer bits), but it is allowed by the format. So incomplete
- * literal/length codes of one symbol should also be permitted.
- *
- * - If there are only literal codes and no lengths, then there are no distance
- * codes. This is represented by one distance code with zero bits.
- *
- * - The list of up to 286 length/literal lengths and up to 30 distance lengths
- * are themselves compressed using Huffman codes and run-length encoding. In
- * the list of code lengths, a 0 symbol means no code, a 1..15 symbol means
- * that length, and the symbols 16, 17, and 18 are run-length instructions.
- * Each of 16, 17, and 18 are follwed by extra bits to define the length of
- * the run. 16 copies the last length 3 to 6 times. 17 represents 3 to 10
- * zero lengths, and 18 represents 11 to 138 zero lengths. Unused symbols
- * are common, hence the special coding for zero lengths.
- *
- * - The symbols for 0..18 are Huffman coded, and so that code must be
- * described first. This is simply a sequence of up to 19 three-bit values
- * representing no code (0) or the code length for that symbol (1..7).
- *
- * - A dynamic block starts with three fixed-size counts from which is computed
- * the number of literal/length code lengths, the number of distance code
- * lengths, and the number of code length code lengths (ok, you come up with
- * a better name!) in the code descriptions. For the literal/length and
- * distance codes, lengths after those provided are considered zero, i.e. no
- * code. The code length code lengths are received in a permuted order (see
- * the order[] array below) to make a short code length code length list more
- * likely. As it turns out, very short and very long codes are less likely
- * to be seen in a dynamic code description, hence what may appear initially
- * to be a peculiar ordering.
- *
- * - Given the number of literal/length code lengths (nlen) and distance code
- * lengths (ndist), then they are treated as one long list of nlen + ndist
- * code lengths. Therefore run-length coding can and often does cross the
- * boundary between the two sets of lengths.
- *
- * - So to summarize, the code description at the start of a dynamic block is
- * three counts for the number of code lengths for the literal/length codes,
- * the distance codes, and the code length codes. This is followed by the
- * code length code lengths, three bits each. This is used to construct the
- * code length code which is used to read the remainder of the lengths. Then
- * the literal/length code lengths and distance lengths are read as a single
- * set of lengths using the code length codes. Codes are constructed from
- * the resulting two sets of lengths, and then finally you can start
- * decoding actual compressed data in the block.
- *
- * - For reference, a "typical" size for the code description in a dynamic
- * block is around 80 bytes.
- */
-local int dynamic(struct state *s)
-{
- int nlen, ndist, ncode; /* number of lengths in descriptor */
- int index; /* index of lengths[] */
- int err; /* construct() return value */
- short lengths[MAXCODES]; /* descriptor code lengths */
- short lencnt[MAXBITS+1], lensym[MAXLCODES]; /* lencode memory */
- short distcnt[MAXBITS+1], distsym[MAXDCODES]; /* distcode memory */
- struct huffman lencode, distcode; /* length and distance codes */
- static const short order[19] = /* permutation of code length codes */
- {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-
- /* construct lencode and distcode */
- lencode.count = lencnt;
- lencode.symbol = lensym;
- distcode.count = distcnt;
- distcode.symbol = distsym;
-
- /* get number of lengths in each table, check lengths */
- nlen = bits(s, 5) + 257;
- ndist = bits(s, 5) + 1;
- ncode = bits(s, 4) + 4;
- if (nlen > MAXLCODES || ndist > MAXDCODES)
- return -3; /* bad counts */
-
- /* read code length code lengths (really), missing lengths are zero */
- for (index = 0; index < ncode; index++)
- lengths[order[index]] = bits(s, 3);
- for (; index < 19; index++)
- lengths[order[index]] = 0;
-
- /* build huffman table for code lengths codes (use lencode temporarily) */
- err = construct(&lencode, lengths, 19);
- if (err != 0) /* require complete code set here */
- return -4;
-
- /* read length/literal and distance code length tables */
- index = 0;
- while (index < nlen + ndist) {
- int symbol; /* decoded value */
- int len; /* last length to repeat */
-
- symbol = decode(s, &lencode);
- if (symbol < 0)
- return symbol; /* invalid symbol */
- if (symbol < 16) /* length in 0..15 */
- lengths[index++] = symbol;
- else { /* repeat instruction */
- len = 0; /* assume repeating zeros */
- if (symbol == 16) { /* repeat last length 3..6 times */
- if (index == 0)
- return -5; /* no last length! */
- len = lengths[index - 1]; /* last length */
- symbol = 3 + bits(s, 2);
- }
- else if (symbol == 17) /* repeat zero 3..10 times */
- symbol = 3 + bits(s, 3);
- else /* == 18, repeat zero 11..138 times */
- symbol = 11 + bits(s, 7);
- if (index + symbol > nlen + ndist)
- return -6; /* too many lengths! */
- while (symbol--) /* repeat last or zero symbol times */
- lengths[index++] = len;
- }
- }
-
- /* check for end-of-block code -- there better be one! */
- if (lengths[256] == 0)
- return -9;
-
- /* build huffman table for literal/length codes */
- err = construct(&lencode, lengths, nlen);
- if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
- return -7; /* incomplete code ok only for single length 1 code */
-
- /* build huffman table for distance codes */
- err = construct(&distcode, lengths + nlen, ndist);
- if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
- return -8; /* incomplete code ok only for single length 1 code */
-
- /* decode data until end-of-block code */
- return codes(s, &lencode, &distcode);
-}
-
-/*
- * Inflate source to dest. On return, destlen and sourcelen are updated to the
- * size of the uncompressed data and the size of the deflate data respectively.
- * On success, the return value of puff() is zero. If there is an error in the
- * source data, i.e. it is not in the deflate format, then a negative value is
- * returned. If there is not enough input available or there is not enough
- * output space, then a positive error is returned. In that case, destlen and
- * sourcelen are not updated to facilitate retrying from the beginning with the
- * provision of more input data or more output space. In the case of invalid
- * inflate data (a negative error), the dest and source pointers are updated to
- * facilitate the debugging of deflators.
- *
- * puff() also has a mode to determine the size of the uncompressed output with
- * no output written. For this dest must be (unsigned char *)0. In this case,
- * the input value of *destlen is ignored, and on return *destlen is set to the
- * size of the uncompressed output.
- *
- * The return codes are:
- *
- * 2: available inflate data did not terminate
- * 1: output space exhausted before completing inflate
- * 0: successful inflate
- * -1: invalid block type (type == 3)
- * -2: stored block length did not match one's complement
- * -3: dynamic block code description: too many length or distance codes
- * -4: dynamic block code description: code lengths codes incomplete
- * -5: dynamic block code description: repeat lengths with no first length
- * -6: dynamic block code description: repeat more than specified lengths
- * -7: dynamic block code description: invalid literal/length code lengths
- * -8: dynamic block code description: invalid distance code lengths
- * -9: dynamic block code description: missing end-of-block code
- * -10: invalid literal/length or distance code in fixed or dynamic block
- * -11: distance is too far back in fixed or dynamic block
- *
- * Format notes:
- *
- * - Three bits are read for each block to determine the kind of block and
- * whether or not it is the last block. Then the block is decoded and the
- * process repeated if it was not the last block.
- *
- * - The leftover bits in the last byte of the deflate data after the last
- * block (if it was a fixed or dynamic block) are undefined and have no
- * expected values to check.
- */
-int puff(unsigned char *dest, /* pointer to destination pointer */
- unsigned long *destlen, /* amount of output space */
- const unsigned char *source, /* pointer to source data pointer */
- unsigned long *sourcelen) /* amount of input available */
-{
- struct state s; /* input/output state */
- int last, type; /* block information */
- int err; /* return value */
-
- /* initialize output state */
- s.out = dest;
- s.outlen = *destlen; /* ignored if dest is NIL */
- s.outcnt = 0;
-
- /* initialize input state */
- s.in = source;
- s.inlen = *sourcelen;
- s.incnt = 0;
- s.bitbuf = 0;
- s.bitcnt = 0;
-
- /* return if bits() or decode() tries to read past available input */
- if (setjmp(s.env) != 0) /* if came back here via longjmp() */
- err = 2; /* then skip do-loop, return error */
- else {
- /* process blocks until last block or error */
- do {
- last = bits(&s, 1); /* one if last block */
- type = bits(&s, 2); /* block type 0..3 */
- err = type == 0 ?
- stored(&s) :
- (type == 1 ?
- fixed(&s) :
- (type == 2 ?
- dynamic(&s) :
- -1)); /* type == 3, invalid */
- if (err != 0)
- break; /* return with error */
- } while (!last);
- }
-
- /* update the lengths and return */
- if (err <= 0) {
- *destlen = s.outcnt;
- *sourcelen = s.incnt;
- }
- return err;
-}
+++ /dev/null
-/* puff.h
- Copyright (C) 2002-2013 Mark Adler, all rights reserved
- version 2.3, 21 Jan 2013
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the author be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- Mark Adler madler@alumni.caltech.edu
- */
-
-
-/*
- * See puff.c for purpose and usage.
- */
-#ifndef NIL
-# define NIL ((unsigned char *)0) /* for no output option */
-#endif
-
-int puff(unsigned char *dest, /* pointer to destination pointer */
- unsigned long *destlen, /* amount of output space */
- const unsigned char *source, /* pointer to source data pointer */
- unsigned long *sourcelen); /* amount of input available */
+++ /dev/null
-/*
- * pufftest.c
- * Copyright (C) 2002-2013 Mark Adler
- * For conditions of distribution and use, see copyright notice in puff.h
- * version 2.3, 21 Jan 2013
- */
-
-/* Example of how to use puff().
-
- Usage: puff [-w] [-f] [-nnn] file
- ... | puff [-w] [-f] [-nnn]
-
- where file is the input file with deflate data, nnn is the number of bytes
- of input to skip before inflating (e.g. to skip a zlib or gzip header), and
- -w is used to write the decompressed data to stdout. -f is for coverage
- testing, and causes pufftest to fail with not enough output space (-f does
- a write like -w, so -w is not required). */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include "puff.h"
-
-#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
-# include <fcntl.h>
-# include <io.h>
-# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-
-#define local static
-
-/* Return size times approximately the cube root of 2, keeping the result as 1,
- 3, or 5 times a power of 2 -- the result is always > size, until the result
- is the maximum value of an unsigned long, where it remains. This is useful
- to keep reallocations less than ~33% over the actual data. */
-local size_t bythirds(size_t size)
-{
- int n;
- size_t m;
-
- m = size;
- for (n = 0; m; n++)
- m >>= 1;
- if (n < 3)
- return size + 1;
- n -= 3;
- m = size >> n;
- m += m == 6 ? 2 : 1;
- m <<= n;
- return m > size ? m : (size_t)(-1);
-}
-
-/* Read the input file *name, or stdin if name is NULL, into allocated memory.
- Reallocate to larger buffers until the entire file is read in. Return a
- pointer to the allocated data, or NULL if there was a memory allocation
- failure. *len is the number of bytes of data read from the input file (even
- if load() returns NULL). If the input file was empty or could not be opened
- or read, *len is zero. */
-local void *load(const char *name, size_t *len)
-{
- size_t size;
- void *buf, *swap;
- FILE *in;
-
- *len = 0;
- buf = malloc(size = 4096);
- if (buf == NULL)
- return NULL;
- in = name == NULL ? stdin : fopen(name, "rb");
- if (in != NULL) {
- for (;;) {
- *len += fread((char *)buf + *len, 1, size - *len, in);
- if (*len < size) break;
- size = bythirds(size);
- if (size == *len || (swap = realloc(buf, size)) == NULL) {
- free(buf);
- buf = NULL;
- break;
- }
- buf = swap;
- }
- fclose(in);
- }
- return buf;
-}
-
-int main(int argc, char **argv)
-{
- int ret, put = 0, fail = 0;
- unsigned skip = 0;
- char *arg, *name = NULL;
- unsigned char *source = NULL, *dest;
- size_t len = 0;
- unsigned long sourcelen, destlen;
-
- /* process arguments */
- while (arg = *++argv, --argc)
- if (arg[0] == '-') {
- if (arg[1] == 'w' && arg[2] == 0)
- put = 1;
- else if (arg[1] == 'f' && arg[2] == 0)
- fail = 1, put = 1;
- else if (arg[1] >= '0' && arg[1] <= '9')
- skip = (unsigned)atoi(arg + 1);
- else {
- fprintf(stderr, "invalid option %s\n", arg);
- return 3;
- }
- }
- else if (name != NULL) {
- fprintf(stderr, "only one file name allowed\n");
- return 3;
- }
- else
- name = arg;
- source = load(name, &len);
- if (source == NULL) {
- fprintf(stderr, "memory allocation failure\n");
- return 4;
- }
- if (len == 0) {
- fprintf(stderr, "could not read %s, or it was empty\n",
- name == NULL ? "<stdin>" : name);
- free(source);
- return 3;
- }
- if (skip >= len) {
- fprintf(stderr, "skip request of %d leaves no input\n", skip);
- free(source);
- return 3;
- }
-
- /* test inflate data with offset skip */
- len -= skip;
- sourcelen = (unsigned long)len;
- ret = puff(NIL, &destlen, source + skip, &sourcelen);
- if (ret)
- fprintf(stderr, "puff() failed with return code %d\n", ret);
- else {
- fprintf(stderr, "puff() succeeded uncompressing %lu bytes\n", destlen);
- if (sourcelen < len) fprintf(stderr, "%lu compressed bytes unused\n",
- len - sourcelen);
- }
-
- /* if requested, inflate again and write decompressd data to stdout */
- if (put && ret == 0) {
- if (fail)
- destlen >>= 1;
- dest = malloc(destlen);
- if (dest == NULL) {
- fprintf(stderr, "memory allocation failure\n");
- free(source);
- return 4;
- }
- puff(dest, &destlen, source + skip, &sourcelen);
- SET_BINARY_MODE(stdout);
- fwrite(dest, 1, destlen, stdout);
- free(dest);
- }
-
- /* clean up */
- free(source);
- return ret;
-}
+++ /dev/null
-#include <stdio.h>\r
-#include <stdlib.h>\r
-#include <windows.h>\r
-\r
-#include "zlib.h"\r
-\r
-\r
-void MyDoMinus64(LARGE_INTEGER *R,LARGE_INTEGER A,LARGE_INTEGER B)\r
-{\r
- R->HighPart = A.HighPart - B.HighPart;\r
- if (A.LowPart >= B.LowPart)\r
- R->LowPart = A.LowPart - B.LowPart;\r
- else\r
- {\r
- R->LowPart = A.LowPart - B.LowPart;\r
- R->HighPart --;\r
- }\r
-}\r
-\r
-#ifdef _M_X64\r
-// see http://msdn2.microsoft.com/library/twchhe95(en-us,vs.80).aspx for __rdtsc\r
-unsigned __int64 __rdtsc(void);\r
-void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)\r
-{\r
- // printf("rdtsc = %I64x\n",__rdtsc());\r
- pbeginTime64->QuadPart=__rdtsc();\r
-}\r
-\r
-LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)\r
-{\r
- LARGE_INTEGER LIres;\r
- unsigned _int64 res=__rdtsc()-((unsigned _int64)(beginTime64.QuadPart));\r
- LIres.QuadPart=res;\r
- // printf("rdtsc = %I64x\n",__rdtsc());\r
- return LIres;\r
-}\r
-#else\r
-#ifdef _M_IX86\r
-void myGetRDTSC32(LARGE_INTEGER * pbeginTime64)\r
-{\r
- DWORD dwEdx,dwEax;\r
- _asm\r
- {\r
- rdtsc\r
- mov dwEax,eax\r
- mov dwEdx,edx\r
- }\r
- pbeginTime64->LowPart=dwEax;\r
- pbeginTime64->HighPart=dwEdx;\r
-}\r
-\r
-void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)\r
-{\r
- myGetRDTSC32(pbeginTime64);\r
-}\r
-\r
-LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)\r
-{\r
- LARGE_INTEGER LIres,endTime64;\r
- myGetRDTSC32(&endTime64);\r
-\r
- LIres.LowPart=LIres.HighPart=0;\r
- MyDoMinus64(&LIres,endTime64,beginTime64);\r
- return LIres;\r
-}\r
-#else\r
-void myGetRDTSC32(LARGE_INTEGER * pbeginTime64)\r
-{\r
-}\r
-\r
-void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)\r
-{\r
-}\r
-\r
-LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)\r
-{\r
- LARGE_INTEGER lr;\r
- lr.QuadPart=0;\r
- return lr;\r
-}\r
-#endif\r
-#endif\r
-\r
-void BeginCountPerfCounter(LARGE_INTEGER * pbeginTime64,BOOL fComputeTimeQueryPerf)\r
-{\r
- if ((!fComputeTimeQueryPerf) || (!QueryPerformanceCounter(pbeginTime64)))\r
- {\r
- pbeginTime64->LowPart = GetTickCount();\r
- pbeginTime64->HighPart = 0;\r
- }\r
-}\r
-\r
-DWORD GetMsecSincePerfCounter(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)\r
-{\r
- LARGE_INTEGER endTime64,ticksPerSecond,ticks;\r
- DWORDLONG ticksShifted,tickSecShifted;\r
- DWORD dwLog=16+0;\r
- DWORD dwRet;\r
- if ((!fComputeTimeQueryPerf) || (!QueryPerformanceCounter(&endTime64)))\r
- dwRet = (GetTickCount() - beginTime64.LowPart)*1;\r
- else\r
- {\r
- MyDoMinus64(&ticks,endTime64,beginTime64);\r
- QueryPerformanceFrequency(&ticksPerSecond);\r
-\r
-\r
- {\r
- ticksShifted = Int64ShrlMod32(*(DWORDLONG*)&ticks,dwLog);\r
- tickSecShifted = Int64ShrlMod32(*(DWORDLONG*)&ticksPerSecond,dwLog);\r
-\r
- }\r
-\r
- dwRet = (DWORD)((((DWORD)ticksShifted)*1000)/(DWORD)(tickSecShifted));\r
- dwRet *=1;\r
- }\r
- return dwRet;\r
-}\r
-\r
-int ReadFileMemory(const char* filename,long* plFileSize,unsigned char** pFilePtr)\r
-{\r
- FILE* stream;\r
- unsigned char* ptr;\r
- int retVal=1;\r
- stream=fopen(filename, "rb");\r
- if (stream==NULL)\r
- return 0;\r
-\r
- fseek(stream,0,SEEK_END);\r
-\r
- *plFileSize=ftell(stream);\r
- fseek(stream,0,SEEK_SET);\r
- ptr=malloc((*plFileSize)+1);\r
- if (ptr==NULL)\r
- retVal=0;\r
- else\r
- {\r
- if (fread(ptr, 1, *plFileSize,stream) != (*plFileSize))\r
- retVal=0;\r
- }\r
- fclose(stream);\r
- *pFilePtr=ptr;\r
- return retVal;\r
-}\r
-\r
-int main(int argc, char *argv[])\r
-{\r
- int BlockSizeCompress=0x8000;\r
- int BlockSizeUncompress=0x8000;\r
- int cprLevel=Z_DEFAULT_COMPRESSION ;\r
- long lFileSize;\r
- unsigned char* FilePtr;\r
- long lBufferSizeCpr;\r
- long lBufferSizeUncpr;\r
- long lCompressedSize=0;\r
- unsigned char* CprPtr;\r
- unsigned char* UncprPtr;\r
- long lSizeCpr,lSizeUncpr;\r
- DWORD dwGetTick,dwMsecQP;\r
- LARGE_INTEGER li_qp,li_rdtsc,dwResRdtsc;\r
-\r
- if (argc<=1)\r
- {\r
- printf("run TestZlib <File> [BlockSizeCompress] [BlockSizeUncompress] [compres. level]\n");\r
- return 0;\r
- }\r
-\r
- if (ReadFileMemory(argv[1],&lFileSize,&FilePtr)==0)\r
- {\r
- printf("error reading %s\n",argv[1]);\r
- return 1;\r
- }\r
- else printf("file %s read, %u bytes\n",argv[1],lFileSize);\r
-\r
- if (argc>=3)\r
- BlockSizeCompress=atol(argv[2]);\r
-\r
- if (argc>=4)\r
- BlockSizeUncompress=atol(argv[3]);\r
-\r
- if (argc>=5)\r
- cprLevel=(int)atol(argv[4]);\r
-\r
- lBufferSizeCpr = lFileSize + (lFileSize/0x10) + 0x200;\r
- lBufferSizeUncpr = lBufferSizeCpr;\r
-\r
- CprPtr=(unsigned char*)malloc(lBufferSizeCpr + BlockSizeCompress);\r
-\r
- BeginCountPerfCounter(&li_qp,TRUE);\r
- dwGetTick=GetTickCount();\r
- BeginCountRdtsc(&li_rdtsc);\r
- {\r
- z_stream zcpr;\r
- int ret=Z_OK;\r
- long lOrigToDo = lFileSize;\r
- long lOrigDone = 0;\r
- int step=0;\r
- memset(&zcpr,0,sizeof(z_stream));\r
- deflateInit(&zcpr,cprLevel);\r
-\r
- zcpr.next_in = FilePtr;\r
- zcpr.next_out = CprPtr;\r
-\r
-\r
- do\r
- {\r
- long all_read_before = zcpr.total_in;\r
- zcpr.avail_in = min(lOrigToDo,BlockSizeCompress);\r
- zcpr.avail_out = BlockSizeCompress;\r
- ret=deflate(&zcpr,(zcpr.avail_in==lOrigToDo) ? Z_FINISH : Z_SYNC_FLUSH);\r
- lOrigDone += (zcpr.total_in-all_read_before);\r
- lOrigToDo -= (zcpr.total_in-all_read_before);\r
- step++;\r
- } while (ret==Z_OK);\r
-\r
- lSizeCpr=zcpr.total_out;\r
- deflateEnd(&zcpr);\r
- dwGetTick=GetTickCount()-dwGetTick;\r
- dwMsecQP=GetMsecSincePerfCounter(li_qp,TRUE);\r
- dwResRdtsc=GetResRdtsc(li_rdtsc,TRUE);\r
- printf("total compress size = %u, in %u step\n",lSizeCpr,step);\r
- printf("time = %u msec = %f sec\n",dwGetTick,dwGetTick/(double)1000.);\r
- printf("defcpr time QP = %u msec = %f sec\n",dwMsecQP,dwMsecQP/(double)1000.);\r
- printf("defcpr result rdtsc = %I64x\n\n",dwResRdtsc.QuadPart);\r
- }\r
-\r
- CprPtr=(unsigned char*)realloc(CprPtr,lSizeCpr);\r
- UncprPtr=(unsigned char*)malloc(lBufferSizeUncpr + BlockSizeUncompress);\r
-\r
- BeginCountPerfCounter(&li_qp,TRUE);\r
- dwGetTick=GetTickCount();\r
- BeginCountRdtsc(&li_rdtsc);\r
- {\r
- z_stream zcpr;\r
- int ret=Z_OK;\r
- long lOrigToDo = lSizeCpr;\r
- long lOrigDone = 0;\r
- int step=0;\r
- memset(&zcpr,0,sizeof(z_stream));\r
- inflateInit(&zcpr);\r
-\r
- zcpr.next_in = CprPtr;\r
- zcpr.next_out = UncprPtr;\r
-\r
-\r
- do\r
- {\r
- long all_read_before = zcpr.total_in;\r
- zcpr.avail_in = min(lOrigToDo,BlockSizeUncompress);\r
- zcpr.avail_out = BlockSizeUncompress;\r
- ret=inflate(&zcpr,Z_SYNC_FLUSH);\r
- lOrigDone += (zcpr.total_in-all_read_before);\r
- lOrigToDo -= (zcpr.total_in-all_read_before);\r
- step++;\r
- } while (ret==Z_OK);\r
-\r
- lSizeUncpr=zcpr.total_out;\r
- inflateEnd(&zcpr);\r
- dwGetTick=GetTickCount()-dwGetTick;\r
- dwMsecQP=GetMsecSincePerfCounter(li_qp,TRUE);\r
- dwResRdtsc=GetResRdtsc(li_rdtsc,TRUE);\r
- printf("total uncompress size = %u, in %u step\n",lSizeUncpr,step);\r
- printf("time = %u msec = %f sec\n",dwGetTick,dwGetTick/(double)1000.);\r
- printf("uncpr time QP = %u msec = %f sec\n",dwMsecQP,dwMsecQP/(double)1000.);\r
- printf("uncpr result rdtsc = %I64x\n\n",dwResRdtsc.QuadPart);\r
- }\r
-\r
- if (lSizeUncpr==lFileSize)\r
- {\r
- if (memcmp(FilePtr,UncprPtr,lFileSize)==0)\r
- printf("compare ok\n");\r
-\r
- }\r
-\r
- return 0;\r
-}\r
+++ /dev/null
-To build testzLib with Visual Studio 2005:\r
-\r
-copy to a directory file from :\r
-- root of zLib tree\r
-- contrib/testzlib\r
-- contrib/masmx86\r
-- contrib/masmx64\r
-- contrib/vstudio/vc7\r
-\r
-and open testzlib8.sln
\ No newline at end of file
+++ /dev/null
-CC=cc
-CFLAGS=-g
-
-untgz: untgz.o ../../libz.a
- $(CC) $(CFLAGS) -o untgz untgz.o -L../.. -lz
-
-untgz.o: untgz.c ../../zlib.h
- $(CC) $(CFLAGS) -c -I../.. untgz.c
-
-../../libz.a:
- cd ../..; ./configure; make
-
-clean:
- rm -f untgz untgz.o *~
+++ /dev/null
-CC=cl
-CFLAGS=-MD
-
-untgz.exe: untgz.obj ..\..\zlib.lib
- $(CC) $(CFLAGS) untgz.obj ..\..\zlib.lib
-
-untgz.obj: untgz.c ..\..\zlib.h
- $(CC) $(CFLAGS) -c -I..\.. untgz.c
-
-..\..\zlib.lib:
- cd ..\..
- $(MAKE) -f win32\makefile.msc
- cd contrib\untgz
-
-clean:
- -del untgz.obj
- -del untgz.exe
+++ /dev/null
-/*
- * untgz.c -- Display contents and extract files from a gzip'd TAR file
- *
- * written by Pedro A. Aranda Gutierrez <paag@tid.es>
- * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org>
- * various fixes by Cosmin Truta <cosmint@cs.ubbcluj.ro>
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <errno.h>
-
-#include "zlib.h"
-
-#ifdef unix
-# include <unistd.h>
-#else
-# include <direct.h>
-# include <io.h>
-#endif
-
-#ifdef WIN32
-#include <windows.h>
-# ifndef F_OK
-# define F_OK 0
-# endif
-# define mkdir(dirname,mode) _mkdir(dirname)
-# ifdef _MSC_VER
-# define access(path,mode) _access(path,mode)
-# define chmod(path,mode) _chmod(path,mode)
-# define strdup(str) _strdup(str)
-# endif
-#else
-# include <utime.h>
-#endif
-
-
-/* values used in typeflag field */
-
-#define REGTYPE '0' /* regular file */
-#define AREGTYPE '\0' /* regular file */
-#define LNKTYPE '1' /* link */
-#define SYMTYPE '2' /* reserved */
-#define CHRTYPE '3' /* character special */
-#define BLKTYPE '4' /* block special */
-#define DIRTYPE '5' /* directory */
-#define FIFOTYPE '6' /* FIFO special */
-#define CONTTYPE '7' /* reserved */
-
-/* GNU tar extensions */
-
-#define GNUTYPE_DUMPDIR 'D' /* file names from dumped directory */
-#define GNUTYPE_LONGLINK 'K' /* long link name */
-#define GNUTYPE_LONGNAME 'L' /* long file name */
-#define GNUTYPE_MULTIVOL 'M' /* continuation of file from another volume */
-#define GNUTYPE_NAMES 'N' /* file name that does not fit into main hdr */
-#define GNUTYPE_SPARSE 'S' /* sparse file */
-#define GNUTYPE_VOLHDR 'V' /* tape/volume header */
-
-
-/* tar header */
-
-#define BLOCKSIZE 512
-#define SHORTNAMESIZE 100
-
-struct tar_header
-{ /* byte offset */
- char name[100]; /* 0 */
- char mode[8]; /* 100 */
- char uid[8]; /* 108 */
- char gid[8]; /* 116 */
- char size[12]; /* 124 */
- char mtime[12]; /* 136 */
- char chksum[8]; /* 148 */
- char typeflag; /* 156 */
- char linkname[100]; /* 157 */
- char magic[6]; /* 257 */
- char version[2]; /* 263 */
- char uname[32]; /* 265 */
- char gname[32]; /* 297 */
- char devmajor[8]; /* 329 */
- char devminor[8]; /* 337 */
- char prefix[155]; /* 345 */
- /* 500 */
-};
-
-union tar_buffer
-{
- char buffer[BLOCKSIZE];
- struct tar_header header;
-};
-
-struct attr_item
-{
- struct attr_item *next;
- char *fname;
- int mode;
- time_t time;
-};
-
-enum { TGZ_EXTRACT, TGZ_LIST, TGZ_INVALID };
-
-char *TGZfname OF((const char *));
-void TGZnotfound OF((const char *));
-
-int getoct OF((char *, int));
-char *strtime OF((time_t *));
-int setfiletime OF((char *, time_t));
-void push_attr OF((struct attr_item **, char *, int, time_t));
-void restore_attr OF((struct attr_item **));
-
-int ExprMatch OF((char *, char *));
-
-int makedir OF((char *));
-int matchname OF((int, int, char **, char *));
-
-void error OF((const char *));
-int tar OF((gzFile, int, int, int, char **));
-
-void help OF((int));
-int main OF((int, char **));
-
-char *prog;
-
-const char *TGZsuffix[] = { "\0", ".tar", ".tar.gz", ".taz", ".tgz", NULL };
-
-/* return the file name of the TGZ archive */
-/* or NULL if it does not exist */
-
-char *TGZfname (const char *arcname)
-{
- static char buffer[1024];
- int origlen,i;
-
- strcpy(buffer,arcname);
- origlen = strlen(buffer);
-
- for (i=0; TGZsuffix[i]; i++)
- {
- strcpy(buffer+origlen,TGZsuffix[i]);
- if (access(buffer,F_OK) == 0)
- return buffer;
- }
- return NULL;
-}
-
-
-/* error message for the filename */
-
-void TGZnotfound (const char *arcname)
-{
- int i;
-
- fprintf(stderr,"%s: Couldn't find ",prog);
- for (i=0;TGZsuffix[i];i++)
- fprintf(stderr,(TGZsuffix[i+1]) ? "%s%s, " : "or %s%s\n",
- arcname,
- TGZsuffix[i]);
- exit(1);
-}
-
-
-/* convert octal digits to int */
-/* on error return -1 */
-
-int getoct (char *p,int width)
-{
- int result = 0;
- char c;
-
- while (width--)
- {
- c = *p++;
- if (c == 0)
- break;
- if (c == ' ')
- continue;
- if (c < '0' || c > '7')
- return -1;
- result = result * 8 + (c - '0');
- }
- return result;
-}
-
-
-/* convert time_t to string */
-/* use the "YYYY/MM/DD hh:mm:ss" format */
-
-char *strtime (time_t *t)
-{
- struct tm *local;
- static char result[32];
-
- local = localtime(t);
- sprintf(result,"%4d/%02d/%02d %02d:%02d:%02d",
- local->tm_year+1900, local->tm_mon+1, local->tm_mday,
- local->tm_hour, local->tm_min, local->tm_sec);
- return result;
-}
-
-
-/* set file time */
-
-int setfiletime (char *fname,time_t ftime)
-{
-#ifdef WIN32
- static int isWinNT = -1;
- SYSTEMTIME st;
- FILETIME locft, modft;
- struct tm *loctm;
- HANDLE hFile;
- int result;
-
- loctm = localtime(&ftime);
- if (loctm == NULL)
- return -1;
-
- st.wYear = (WORD)loctm->tm_year + 1900;
- st.wMonth = (WORD)loctm->tm_mon + 1;
- st.wDayOfWeek = (WORD)loctm->tm_wday;
- st.wDay = (WORD)loctm->tm_mday;
- st.wHour = (WORD)loctm->tm_hour;
- st.wMinute = (WORD)loctm->tm_min;
- st.wSecond = (WORD)loctm->tm_sec;
- st.wMilliseconds = 0;
- if (!SystemTimeToFileTime(&st, &locft) ||
- !LocalFileTimeToFileTime(&locft, &modft))
- return -1;
-
- if (isWinNT < 0)
- isWinNT = (GetVersion() < 0x80000000) ? 1 : 0;
- hFile = CreateFile(fname, GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
- (isWinNT ? FILE_FLAG_BACKUP_SEMANTICS : 0),
- NULL);
- if (hFile == INVALID_HANDLE_VALUE)
- return -1;
- result = SetFileTime(hFile, NULL, NULL, &modft) ? 0 : -1;
- CloseHandle(hFile);
- return result;
-#else
- struct utimbuf settime;
-
- settime.actime = settime.modtime = ftime;
- return utime(fname,&settime);
-#endif
-}
-
-
-/* push file attributes */
-
-void push_attr(struct attr_item **list,char *fname,int mode,time_t time)
-{
- struct attr_item *item;
-
- item = (struct attr_item *)malloc(sizeof(struct attr_item));
- if (item == NULL)
- error("Out of memory");
- item->fname = strdup(fname);
- item->mode = mode;
- item->time = time;
- item->next = *list;
- *list = item;
-}
-
-
-/* restore file attributes */
-
-void restore_attr(struct attr_item **list)
-{
- struct attr_item *item, *prev;
-
- for (item = *list; item != NULL; )
- {
- setfiletime(item->fname,item->time);
- chmod(item->fname,item->mode);
- prev = item;
- item = item->next;
- free(prev);
- }
- *list = NULL;
-}
-
-
-/* match regular expression */
-
-#define ISSPECIAL(c) (((c) == '*') || ((c) == '/'))
-
-int ExprMatch (char *string,char *expr)
-{
- while (1)
- {
- if (ISSPECIAL(*expr))
- {
- if (*expr == '/')
- {
- if (*string != '\\' && *string != '/')
- return 0;
- string ++; expr++;
- }
- else if (*expr == '*')
- {
- if (*expr ++ == 0)
- return 1;
- while (*++string != *expr)
- if (*string == 0)
- return 0;
- }
- }
- else
- {
- if (*string != *expr)
- return 0;
- if (*expr++ == 0)
- return 1;
- string++;
- }
- }
-}
-
-
-/* recursive mkdir */
-/* abort on ENOENT; ignore other errors like "directory already exists" */
-/* return 1 if OK */
-/* 0 on error */
-
-int makedir (char *newdir)
-{
- char *buffer = strdup(newdir);
- char *p;
- int len = strlen(buffer);
-
- if (len <= 0) {
- free(buffer);
- return 0;
- }
- if (buffer[len-1] == '/') {
- buffer[len-1] = '\0';
- }
- if (mkdir(buffer, 0755) == 0)
- {
- free(buffer);
- return 1;
- }
-
- p = buffer+1;
- while (1)
- {
- char hold;
-
- while(*p && *p != '\\' && *p != '/')
- p++;
- hold = *p;
- *p = 0;
- if ((mkdir(buffer, 0755) == -1) && (errno == ENOENT))
- {
- fprintf(stderr,"%s: Couldn't create directory %s\n",prog,buffer);
- free(buffer);
- return 0;
- }
- if (hold == 0)
- break;
- *p++ = hold;
- }
- free(buffer);
- return 1;
-}
-
-
-int matchname (int arg,int argc,char **argv,char *fname)
-{
- if (arg == argc) /* no arguments given (untgz tgzarchive) */
- return 1;
-
- while (arg < argc)
- if (ExprMatch(fname,argv[arg++]))
- return 1;
-
- return 0; /* ignore this for the moment being */
-}
-
-
-/* tar file list or extract */
-
-int tar (gzFile in,int action,int arg,int argc,char **argv)
-{
- union tar_buffer buffer;
- int len;
- int err;
- int getheader = 1;
- int remaining = 0;
- FILE *outfile = NULL;
- char fname[BLOCKSIZE];
- int tarmode;
- time_t tartime;
- struct attr_item *attributes = NULL;
-
- if (action == TGZ_LIST)
- printf(" date time size file\n"
- " ---------- -------- --------- -------------------------------------\n");
- while (1)
- {
- len = gzread(in, &buffer, BLOCKSIZE);
- if (len < 0)
- error(gzerror(in, &err));
- /*
- * Always expect complete blocks to process
- * the tar information.
- */
- if (len != BLOCKSIZE)
- {
- action = TGZ_INVALID; /* force error exit */
- remaining = 0; /* force I/O cleanup */
- }
-
- /*
- * If we have to get a tar header
- */
- if (getheader >= 1)
- {
- /*
- * if we met the end of the tar
- * or the end-of-tar block,
- * we are done
- */
- if (len == 0 || buffer.header.name[0] == 0)
- break;
-
- tarmode = getoct(buffer.header.mode,8);
- tartime = (time_t)getoct(buffer.header.mtime,12);
- if (tarmode == -1 || tartime == (time_t)-1)
- {
- buffer.header.name[0] = 0;
- action = TGZ_INVALID;
- }
-
- if (getheader == 1)
- {
- strncpy(fname,buffer.header.name,SHORTNAMESIZE);
- if (fname[SHORTNAMESIZE-1] != 0)
- fname[SHORTNAMESIZE] = 0;
- }
- else
- {
- /*
- * The file name is longer than SHORTNAMESIZE
- */
- if (strncmp(fname,buffer.header.name,SHORTNAMESIZE-1) != 0)
- error("bad long name");
- getheader = 1;
- }
-
- /*
- * Act according to the type flag
- */
- switch (buffer.header.typeflag)
- {
- case DIRTYPE:
- if (action == TGZ_LIST)
- printf(" %s <dir> %s\n",strtime(&tartime),fname);
- if (action == TGZ_EXTRACT)
- {
- makedir(fname);
- push_attr(&attributes,fname,tarmode,tartime);
- }
- break;
- case REGTYPE:
- case AREGTYPE:
- remaining = getoct(buffer.header.size,12);
- if (remaining == -1)
- {
- action = TGZ_INVALID;
- break;
- }
- if (action == TGZ_LIST)
- printf(" %s %9d %s\n",strtime(&tartime),remaining,fname);
- else if (action == TGZ_EXTRACT)
- {
- if (matchname(arg,argc,argv,fname))
- {
- outfile = fopen(fname,"wb");
- if (outfile == NULL) {
- /* try creating directory */
- char *p = strrchr(fname, '/');
- if (p != NULL) {
- *p = '\0';
- makedir(fname);
- *p = '/';
- outfile = fopen(fname,"wb");
- }
- }
- if (outfile != NULL)
- printf("Extracting %s\n",fname);
- else
- fprintf(stderr, "%s: Couldn't create %s",prog,fname);
- }
- else
- outfile = NULL;
- }
- getheader = 0;
- break;
- case GNUTYPE_LONGLINK:
- case GNUTYPE_LONGNAME:
- remaining = getoct(buffer.header.size,12);
- if (remaining < 0 || remaining >= BLOCKSIZE)
- {
- action = TGZ_INVALID;
- break;
- }
- len = gzread(in, fname, BLOCKSIZE);
- if (len < 0)
- error(gzerror(in, &err));
- if (fname[BLOCKSIZE-1] != 0 || (int)strlen(fname) > remaining)
- {
- action = TGZ_INVALID;
- break;
- }
- getheader = 2;
- break;
- default:
- if (action == TGZ_LIST)
- printf(" %s <---> %s\n",strtime(&tartime),fname);
- break;
- }
- }
- else
- {
- unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining;
-
- if (outfile != NULL)
- {
- if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes)
- {
- fprintf(stderr,
- "%s: Error writing %s -- skipping\n",prog,fname);
- fclose(outfile);
- outfile = NULL;
- remove(fname);
- }
- }
- remaining -= bytes;
- }
-
- if (remaining == 0)
- {
- getheader = 1;
- if (outfile != NULL)
- {
- fclose(outfile);
- outfile = NULL;
- if (action != TGZ_INVALID)
- push_attr(&attributes,fname,tarmode,tartime);
- }
- }
-
- /*
- * Abandon if errors are found
- */
- if (action == TGZ_INVALID)
- {
- error("broken archive");
- break;
- }
- }
-
- /*
- * Restore file modes and time stamps
- */
- restore_attr(&attributes);
-
- if (gzclose(in) != Z_OK)
- error("failed gzclose");
-
- return 0;
-}
-
-
-/* ============================================================ */
-
-void help(int exitval)
-{
- printf("untgz version 0.2.1\n"
- " using zlib version %s\n\n",
- zlibVersion());
- printf("Usage: untgz file.tgz extract all files\n"
- " untgz file.tgz fname ... extract selected files\n"
- " untgz -l file.tgz list archive contents\n"
- " untgz -h display this help\n");
- exit(exitval);
-}
-
-void error(const char *msg)
-{
- fprintf(stderr, "%s: %s\n", prog, msg);
- exit(1);
-}
-
-
-/* ============================================================ */
-
-#if defined(WIN32) && defined(__GNUC__)
-int _CRT_glob = 0; /* disable argument globbing in MinGW */
-#endif
-
-int main(int argc,char **argv)
-{
- int action = TGZ_EXTRACT;
- int arg = 1;
- char *TGZfile;
- gzFile *f;
-
- prog = strrchr(argv[0],'\\');
- if (prog == NULL)
- {
- prog = strrchr(argv[0],'/');
- if (prog == NULL)
- {
- prog = strrchr(argv[0],':');
- if (prog == NULL)
- prog = argv[0];
- else
- prog++;
- }
- else
- prog++;
- }
- else
- prog++;
-
- if (argc == 1)
- help(0);
-
- if (strcmp(argv[arg],"-l") == 0)
- {
- action = TGZ_LIST;
- if (argc == ++arg)
- help(0);
- }
- else if (strcmp(argv[arg],"-h") == 0)
- {
- help(0);
- }
-
- if ((TGZfile = TGZfname(argv[arg])) == NULL)
- TGZnotfound(argv[arg]);
-
- ++arg;
- if ((action == TGZ_LIST) && (arg != argc))
- help(1);
-
-/*
- * Process the TGZ file
- */
- switch(action)
- {
- case TGZ_LIST:
- case TGZ_EXTRACT:
- f = gzopen(TGZfile,"rb");
- if (f == NULL)
- {
- fprintf(stderr,"%s: Couldn't gzopen %s\n",prog,TGZfile);
- return 1;
- }
- exit(tar(f, action, arg, argc, argv));
- break;
-
- default:
- error("Unknown option");
- exit(1);
- }
-
- return 0;
-}
+++ /dev/null
-Building instructions for the DLL versions of Zlib 1.2.8\r
-========================================================\r
-\r
-This directory contains projects that build zlib and minizip using\r
-Microsoft Visual C++ 9.0/10.0.\r
-\r
-You don't need to build these projects yourself. You can download the\r
-binaries from:\r
- http://www.winimage.com/zLibDll\r
-\r
-More information can be found at this site.\r
-\r
-\r
-\r
-\r
-\r
-Build instructions for Visual Studio 2008 (32 bits or 64 bits)\r
---------------------------------------------------------------\r
-- Uncompress current zlib, including all contrib/* files\r
-- Compile assembly code (with Visual Studio Command Prompt) by running:\r
- bld_ml64.bat (in contrib\masmx64)\r
- bld_ml32.bat (in contrib\masmx86)\r
-- Open contrib\vstudio\vc9\zlibvc.sln with Microsoft Visual C++ 2008\r
-- Or run: vcbuild /rebuild contrib\vstudio\vc9\zlibvc.sln "Release|Win32"\r
-\r
-Build instructions for Visual Studio 2010 (32 bits or 64 bits)\r
---------------------------------------------------------------\r
-- Uncompress current zlib, including all contrib/* files\r
-- Open contrib\vstudio\vc10\zlibvc.sln with Microsoft Visual C++ 2010\r
-\r
-Build instructions for Visual Studio 2012 (32 bits or 64 bits)\r
---------------------------------------------------------------\r
-- Uncompress current zlib, including all contrib/* files\r
-- Open contrib\vstudio\vc11\zlibvc.sln with Microsoft Visual C++ 2012\r
-\r
-\r
-Important\r
----------\r
-- To use zlibwapi.dll in your application, you must define the\r
- macro ZLIB_WINAPI when compiling your application's source files.\r
-\r
-\r
-Additional notes\r
-----------------\r
-- This DLL, named zlibwapi.dll, is compatible to the old zlib.dll built\r
- by Gilles Vollant from the zlib 1.1.x sources, and distributed at\r
- http://www.winimage.com/zLibDll\r
- It uses the WINAPI calling convention for the exported functions, and\r
- includes the minizip functionality. If your application needs that\r
- particular build of zlib.dll, you can rename zlibwapi.dll to zlib.dll.\r
-\r
-- The new DLL was renamed because there exist several incompatible\r
- versions of zlib.dll on the Internet.\r
-\r
-- There is also an official DLL build of zlib, named zlib1.dll. This one\r
- is exporting the functions using the CDECL convention. See the file\r
- win32\DLL_FAQ.txt found in this zlib distribution.\r
-\r
-- There used to be a ZLIB_DLL macro in zlib 1.1.x, but now this symbol\r
- has a slightly different effect. To avoid compatibility problems, do\r
- not define it here.\r
-\r
-\r
-Gilles Vollant\r
-info@winimage.com\r
+++ /dev/null
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|Itanium">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Itanium</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|x64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Itanium">\r
- <Configuration>Release</Configuration>\r
- <Platform>Itanium</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Win32">\r
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+++ /dev/null
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-EXPORTS\r
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-; zlibwapi v1.2.4 added:\r
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-; zlib1 v1.2.4 added:\r
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-; zlib1 v1.2.6 added:\r
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-\r
-; zlib1 v1.2.7 added:\r
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+++ /dev/null
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\ No newline at end of file
+++ /dev/null
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-\r
-VERSION 1.2.8\r
-\r
-EXPORTS\r
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-\r
- unzOpen @61\r
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- unzGoToFirstFile @65\r
- unzGoToNextFile @66\r
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- unzOpenCurrentFile3 @69\r
- unztell @70\r
- unzeof @71\r
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- unzOpen2 @77\r
- unzOpenCurrentFile2 @78\r
- unzOpenCurrentFilePassword @79\r
-\r
- zipOpen @80\r
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- zipCloseFileInZip @83\r
- zipClose @84\r
- zipOpenNewFileInZip2 @86\r
- zipCloseFileInZipRaw @87\r
- zipOpen2 @88\r
- zipOpenNewFileInZip3 @89\r
-\r
- unzGetFilePos @100\r
- unzGoToFilePos @101\r
-\r
- fill_win32_filefunc @110\r
-\r
-; zlibwapi v1.2.4 added:\r
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- fill_win32_filefunc64A @112\r
- fill_win32_filefunc64W @113\r
-\r
- unzOpen64 @120\r
- unzOpen2_64 @121\r
- unzGetGlobalInfo64 @122\r
- unzGetCurrentFileInfo64 @124\r
- unzGetCurrentFileZStreamPos64 @125\r
- unztell64 @126\r
- unzGetFilePos64 @127\r
- unzGoToFilePos64 @128\r
-\r
- zipOpen64 @130\r
- zipOpen2_64 @131\r
- zipOpenNewFileInZip64 @132\r
- zipOpenNewFileInZip2_64 @133\r
- zipOpenNewFileInZip3_64 @134\r
- zipOpenNewFileInZip4_64 @135\r
- zipCloseFileInZipRaw64 @136\r
-\r
-; zlib1 v1.2.4 added:\r
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- crc32_combine @142\r
- deflateSetHeader @144\r
- deflateTune @145\r
- gzbuffer @146\r
- gzclose_r @147\r
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- gzoffset @150\r
- inflateGetHeader @156\r
- inflateMark @157\r
- inflatePrime @158\r
- inflateReset2 @159\r
- inflateUndermine @160\r
-\r
-; zlib1 v1.2.6 added:\r
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- inflateResetKeep @163\r
- deflateResetKeep @164\r
-\r
-; zlib1 v1.2.7 added:\r
- gzopen_w @165\r
-\r
-; zlib1 v1.2.8 added:\r
- inflateGetDictionary @166\r
- gzvprintf @167\r
+++ /dev/null
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- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="ia64\ZlibDllRelease\zlibwapi.lib"\r
- OutputFile="$(OutDir)/minizip.exe"\r
- LinkIncremental="1"\r
- GenerateDebugInformation="true"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- OptimizeForWindows98="1"\r
- TargetMachine="5"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
- Name="Source Files"\r
- Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"\r
- >\r
- <File\r
- RelativePath="..\..\minizip\minizip.c"\r
- >\r
- </File>\r
- </Filter>\r
- <Filter\r
- Name="Header Files"\r
- Filter="h;hpp;hxx;hm;inl;inc"\r
- >\r
- </Filter>\r
- <Filter\r
- Name="Resource Files"\r
- Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"\r
- >\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="9,00"\r
- Name="testzlib"\r
- ProjectGUID="{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"\r
- RootNamespace="testzlib"\r
- Keyword="Win32Proj"\r
- TargetFrameworkVersion="131072"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- <Platform\r
- Name="x64"\r
- />\r
- <Platform\r
- Name="Itanium"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="x86\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- CharacterSet="2"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="1"\r
- BufferSecurityCheck="false"\r
- UsePrecompiledHeader="0"\r
- AssemblerOutput="4"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="2"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(OutDir)/testzlib.pdb"\r
- SubSystem="1"\r
- RandomizedBaseAddress="1"\r
- DataExecutionPrevention="0"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Debug|x64"\r
- OutputDirectory="x64\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="3"\r
- BufferSecurityCheck="false"\r
- AssemblerListingLocation="$(IntDir)\"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj"\r
- GenerateManifest="false"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Debug|Itanium"\r
- OutputDirectory="ia64\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- CharacterSet="2"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- TargetEnvironment="2"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="3"\r
- BufferSecurityCheck="false"\r
- UsePrecompiledHeader="0"\r
- AssemblerOutput="4"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="2"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(OutDir)/testzlib.pdb"\r
- SubSystem="1"\r
- TargetMachine="5"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="ReleaseWithoutAsm|Win32"\r
- OutputDirectory="x86\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- CharacterSet="2"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="2"\r
- InlineFunctionExpansion="1"\r
- OmitFramePointers="true"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"\r
- StringPooling="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="0"\r
- BufferSecurityCheck="false"\r
- EnableFunctionLevelLinking="true"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="1"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- OptimizeForWindows98="1"\r
- RandomizedBaseAddress="1"\r
- DataExecutionPrevention="0"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="ReleaseWithoutAsm|x64"\r
- OutputDirectory="x64\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="2"\r
- BufferSecurityCheck="false"\r
- AssemblerListingLocation="$(IntDir)\"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies=""\r
- GenerateManifest="false"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="ReleaseWithoutAsm|Itanium"\r
- OutputDirectory="ia64\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- CharacterSet="2"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- TargetEnvironment="2"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="2"\r
- InlineFunctionExpansion="1"\r
- OmitFramePointers="true"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"\r
- StringPooling="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="2"\r
- BufferSecurityCheck="false"\r
- EnableFunctionLevelLinking="true"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="1"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- OptimizeForWindows98="1"\r
- TargetMachine="5"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="x86\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- CharacterSet="2"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="2"\r
- InlineFunctionExpansion="1"\r
- OmitFramePointers="true"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"\r
- StringPooling="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="0"\r
- BufferSecurityCheck="false"\r
- EnableFunctionLevelLinking="true"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="1"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- OptimizeForWindows98="1"\r
- RandomizedBaseAddress="1"\r
- DataExecutionPrevention="0"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|x64"\r
- OutputDirectory="x64\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="0"\r
- BufferSecurityCheck="false"\r
- AssemblerListingLocation="$(IntDir)\"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj"\r
- GenerateManifest="false"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Itanium"\r
- OutputDirectory="ia64\TestZlib$(ConfigurationName)"\r
- IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- CharacterSet="2"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- TargetEnvironment="2"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="2"\r
- InlineFunctionExpansion="1"\r
- OmitFramePointers="true"\r
- AdditionalIncludeDirectories="..\..\.."\r
- PreprocessorDefinitions="ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"\r
- StringPooling="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="2"\r
- BufferSecurityCheck="false"\r
- EnableFunctionLevelLinking="true"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="1"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- OptimizeForWindows98="1"\r
- TargetMachine="5"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
- Name="Source Files"\r
- Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"\r
- >\r
- <File\r
- RelativePath="..\..\..\adler32.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\compress.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\crc32.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\deflate.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\infback.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\masmx64\inffas8664.c"\r
- >\r
- <FileConfiguration\r
- Name="Debug|Win32"\r
- ExcludedFromBuild="true"\r
- >\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- />\r
- </FileConfiguration>\r
- <FileConfiguration\r
- Name="Debug|Itanium"\r
- ExcludedFromBuild="true"\r
- >\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- />\r
- </FileConfiguration>\r
- <FileConfiguration\r
- Name="ReleaseWithoutAsm|Win32"\r
- ExcludedFromBuild="true"\r
- >\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- />\r
- </FileConfiguration>\r
- <FileConfiguration\r
- Name="ReleaseWithoutAsm|Itanium"\r
- ExcludedFromBuild="true"\r
- >\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- />\r
- </FileConfiguration>\r
- <FileConfiguration\r
- Name="Release|Win32"\r
- ExcludedFromBuild="true"\r
- >\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- />\r
- </FileConfiguration>\r
- <FileConfiguration\r
- Name="Release|Itanium"\r
- ExcludedFromBuild="true"\r
- >\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- />\r
- </FileConfiguration>\r
- </File>\r
- <File\r
- RelativePath="..\..\..\inffast.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\inflate.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\inftrees.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\testzlib\testzlib.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\trees.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\uncompr.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\zutil.c"\r
- >\r
- </File>\r
- </Filter>\r
- <Filter\r
- Name="Header Files"\r
- Filter="h;hpp;hxx;hm;inl;inc"\r
- >\r
- </Filter>\r
- <Filter\r
- Name="Resource Files"\r
- Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"\r
- >\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="9.00"\r
- Name="TestZlibDll"\r
- ProjectGUID="{C52F9E7B-498A-42BE-8DB4-85A15694366A}"\r
- Keyword="Win32Proj"\r
- TargetFrameworkVersion="131072"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- <Platform\r
- Name="x64"\r
- />\r
- <Platform\r
- Name="Itanium"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="x86\TestZlibDll$(ConfigurationName)"\r
- IntermediateDirectory="x86\TestZlibDll$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- CharacterSet="2"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="..\..\..;..\..\minizip"\r
- PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="1"\r
- BufferSecurityCheck="false"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="x86\ZlibDllDebug\zlibwapi.lib"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="2"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(OutDir)/testzlib.pdb"\r
- SubSystem="1"\r
- RandomizedBaseAddress="1"\r
- DataExecutionPrevention="0"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="x86\TestZlibDll$(ConfigurationName)"\r
- IntermediateDirectory="x86\TestZlibDll$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- CharacterSet="2"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="2"\r
- InlineFunctionExpansion="1"\r
- OmitFramePointers="true"\r
- AdditionalIncludeDirectories="..\..\..;..\..\minizip"\r
- PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"\r
- StringPooling="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="0"\r
- BufferSecurityCheck="false"\r
- EnableFunctionLevelLinking="true"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="x86\ZlibDllRelease\zlibwapi.lib"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="1"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- OptimizeForWindows98="1"\r
- RandomizedBaseAddress="1"\r
- DataExecutionPrevention="0"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Debug|x64"\r
- OutputDirectory="x64\TestZlibDll$(ConfigurationName)"\r
- IntermediateDirectory="x64\TestZlibDll$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- CharacterSet="2"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- TargetEnvironment="3"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="..\..\..;..\..\minizip"\r
- PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="3"\r
- BufferSecurityCheck="false"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="x64\ZlibDllDebug\zlibwapi.lib"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="2"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(OutDir)/testzlib.pdb"\r
- SubSystem="1"\r
- TargetMachine="17"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Debug|Itanium"\r
- OutputDirectory="ia64\TestZlibDll$(ConfigurationName)"\r
- IntermediateDirectory="ia64\TestZlibDll$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- CharacterSet="2"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- TargetEnvironment="2"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="..\..\..;..\..\minizip"\r
- PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="3"\r
- BufferSecurityCheck="false"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="ia64\ZlibDllDebug\zlibwapi.lib"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="2"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(OutDir)/testzlib.pdb"\r
- SubSystem="1"\r
- TargetMachine="5"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|x64"\r
- OutputDirectory="x64\TestZlibDll$(ConfigurationName)"\r
- IntermediateDirectory="x64\TestZlibDll$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- CharacterSet="2"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- TargetEnvironment="3"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="2"\r
- InlineFunctionExpansion="1"\r
- OmitFramePointers="true"\r
- AdditionalIncludeDirectories="..\..\..;..\..\minizip"\r
- PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"\r
- StringPooling="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="2"\r
- BufferSecurityCheck="false"\r
- EnableFunctionLevelLinking="true"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="x64\ZlibDllRelease\zlibwapi.lib"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="1"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- OptimizeForWindows98="1"\r
- TargetMachine="17"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Itanium"\r
- OutputDirectory="ia64\TestZlibDll$(ConfigurationName)"\r
- IntermediateDirectory="ia64\TestZlibDll$(ConfigurationName)\Tmp"\r
- ConfigurationType="1"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- CharacterSet="2"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- TargetEnvironment="2"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="2"\r
- InlineFunctionExpansion="1"\r
- OmitFramePointers="true"\r
- AdditionalIncludeDirectories="..\..\..;..\..\minizip"\r
- PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"\r
- StringPooling="true"\r
- BasicRuntimeChecks="0"\r
- RuntimeLibrary="2"\r
- BufferSecurityCheck="false"\r
- EnableFunctionLevelLinking="true"\r
- UsePrecompiledHeader="0"\r
- AssemblerListingLocation="$(IntDir)\"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalDependencies="ia64\ZlibDllRelease\zlibwapi.lib"\r
- OutputFile="$(OutDir)/testzlib.exe"\r
- LinkIncremental="1"\r
- GenerateManifest="false"\r
- GenerateDebugInformation="true"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- OptimizeForWindows98="1"\r
- TargetMachine="5"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
- Name="Source Files"\r
- Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"\r
- >\r
- <File\r
- RelativePath="..\..\testzlib\testzlib.c"\r
- >\r
- </File>\r
- </Filter>\r
- <Filter\r
- Name="Header Files"\r
- Filter="h;hpp;hxx;hm;inl;inc"\r
- >\r
- </Filter>\r
- <Filter\r
- Name="Resource Files"\r
- Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"\r
- >\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-#include <windows.h>\r
-\r
-#define IDR_VERSION1 1\r
-IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE\r
- FILEVERSION 1,2,8,0\r
- PRODUCTVERSION 1,2,8,0\r
- FILEFLAGSMASK VS_FFI_FILEFLAGSMASK\r
- FILEFLAGS 0\r
- FILEOS VOS_DOS_WINDOWS32\r
- FILETYPE VFT_DLL\r
- FILESUBTYPE 0 // not used\r
-BEGIN\r
- BLOCK "StringFileInfo"\r
- BEGIN\r
- BLOCK "040904E4"\r
- //language ID = U.S. English, char set = Windows, Multilingual\r
-\r
- BEGIN\r
- VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"\r
- VALUE "FileVersion", "1.2.8\0"\r
- VALUE "InternalName", "zlib\0"\r
- VALUE "OriginalFilename", "zlibwapi.dll\0"\r
- VALUE "ProductName", "ZLib.DLL\0"\r
- VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"\r
- VALUE "LegalCopyright", "(C) 1995-2013 Jean-loup Gailly & Mark Adler\0"\r
- END\r
- END\r
- BLOCK "VarFileInfo"\r
- BEGIN\r
- VALUE "Translation", 0x0409, 1252\r
- END\r
-END\r
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="9,00"\r
- Name="zlibstat"\r
- ProjectGUID="{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"\r
- TargetFrameworkVersion="131072"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- <Platform\r
- Name="x64"\r
- />\r
- <Platform\r
- Name="Itanium"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="x86\ZlibStat$(ConfigurationName)"\r
- IntermediateDirectory="x86\ZlibStat$(ConfigurationName)\Tmp"\r
- ConfigurationType="4"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- UseOfMFC="0"\r
- ATLMinimizesCRunTimeLibraryUsage="false"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="..\..\..;..\..\masmx86"\r
- PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"\r
- ExceptionHandling="0"\r
- RuntimeLibrary="1"\r
- BufferSecurityCheck="false"\r
- PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"\r
- AssemblerListingLocation="$(IntDir)\"\r
- ObjectFile="$(IntDir)\"\r
- ProgramDataBaseFileName="$(OutDir)\"\r
- WarningLevel="3"\r
- SuppressStartupBanner="true"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="1"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- Culture="1036"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
- AdditionalOptions="/MACHINE:X86 /NODEFAULTLIB"\r
- OutputFile="$(OutDir)\zlibstat.lib"\r
- SuppressStartupBanner="true"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
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+++ /dev/null
-LIBRARY\r
-; zlib data compression and ZIP file I/O library\r
-\r
-VERSION 1.2.8\r
-\r
-EXPORTS\r
- adler32 @1\r
- compress @2\r
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- deflateSetDictionary @11\r
- gzclose @12\r
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- inflateEnd @20\r
- inflateInit2_ @21\r
- inflateInit_ @22\r
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- inflateSetDictionary @24\r
- inflateSync @25\r
- uncompress @26\r
- zlibVersion @27\r
- gzprintf @28\r
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- gzgetc @30\r
- gzseek @31\r
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- zError @36\r
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- gzgets @41\r
- inflateCopy @42\r
- inflateBackInit_ @43\r
- inflateBack @44\r
- inflateBackEnd @45\r
- compressBound @46\r
- deflateBound @47\r
- gzclearerr @48\r
- gzungetc @49\r
- zlibCompileFlags @50\r
- deflatePrime @51\r
- deflatePending @52\r
-\r
- unzOpen @61\r
- unzClose @62\r
- unzGetGlobalInfo @63\r
- unzGetCurrentFileInfo @64\r
- unzGoToFirstFile @65\r
- unzGoToNextFile @66\r
- unzOpenCurrentFile @67\r
- unzReadCurrentFile @68\r
- unzOpenCurrentFile3 @69\r
- unztell @70\r
- unzeof @71\r
- unzCloseCurrentFile @72\r
- unzGetGlobalComment @73\r
- unzStringFileNameCompare @74\r
- unzLocateFile @75\r
- unzGetLocalExtrafield @76\r
- unzOpen2 @77\r
- unzOpenCurrentFile2 @78\r
- unzOpenCurrentFilePassword @79\r
-\r
- zipOpen @80\r
- zipOpenNewFileInZip @81\r
- zipWriteInFileInZip @82\r
- zipCloseFileInZip @83\r
- zipClose @84\r
- zipOpenNewFileInZip2 @86\r
- zipCloseFileInZipRaw @87\r
- zipOpen2 @88\r
- zipOpenNewFileInZip3 @89\r
-\r
- unzGetFilePos @100\r
- unzGoToFilePos @101\r
-\r
- fill_win32_filefunc @110\r
-\r
-; zlibwapi v1.2.4 added:\r
- fill_win32_filefunc64 @111\r
- fill_win32_filefunc64A @112\r
- fill_win32_filefunc64W @113\r
-\r
- unzOpen64 @120\r
- unzOpen2_64 @121\r
- unzGetGlobalInfo64 @122\r
- unzGetCurrentFileInfo64 @124\r
- unzGetCurrentFileZStreamPos64 @125\r
- unztell64 @126\r
- unzGetFilePos64 @127\r
- unzGoToFilePos64 @128\r
-\r
- zipOpen64 @130\r
- zipOpen2_64 @131\r
- zipOpenNewFileInZip64 @132\r
- zipOpenNewFileInZip2_64 @133\r
- zipOpenNewFileInZip3_64 @134\r
- zipOpenNewFileInZip4_64 @135\r
- zipCloseFileInZipRaw64 @136\r
-\r
-; zlib1 v1.2.4 added:\r
- adler32_combine @140\r
- crc32_combine @142\r
- deflateSetHeader @144\r
- deflateTune @145\r
- gzbuffer @146\r
- gzclose_r @147\r
- gzclose_w @148\r
- gzdirect @149\r
- gzoffset @150\r
- inflateGetHeader @156\r
- inflateMark @157\r
- inflatePrime @158\r
- inflateReset2 @159\r
- inflateUndermine @160\r
-\r
-; zlib1 v1.2.6 added:\r
- gzgetc_ @161\r
- inflateResetKeep @163\r
- deflateResetKeep @164\r
-\r
-; zlib1 v1.2.7 added:\r
- gzopen_w @165\r
-\r
-; zlib1 v1.2.8 added:\r
- inflateGetDictionary @166\r
- gzvprintf @167\r
+++ /dev/null
-\r
-Microsoft Visual Studio Solution File, Format Version 10.00\r
-# Visual Studio 2008\r
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-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "TestZlibDll", "testzlibdll.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- {8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}\r
- EndProjectSection\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"\r
- ProjectSection(ProjectDependencies) = postProject\r
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- EndProjectSection\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- {8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}\r
- EndProjectSection\r
-EndProject\r
-Global\r
- GlobalSection(SolutionConfigurationPlatforms) = preSolution\r
- Debug|Itanium = Debug|Itanium\r
- Debug|Win32 = Debug|Win32\r
- Debug|x64 = Debug|x64\r
- Release|Itanium = Release|Itanium\r
- Release|Win32 = Release|Win32\r
- Release|x64 = Release|x64\r
- ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium\r
- ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32\r
- ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64\r
- EndGlobalSection\r
- GlobalSection(ProjectConfigurationPlatforms) = postSolution\r
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- {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.Build.0 = Debug|Itanium\r
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- {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32\r
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- {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Itanium\r
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- {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32\r
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- {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64\r
- {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64\r
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- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32\r
- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64\r
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- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64\r
- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64\r
- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium\r
- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium\r
- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32\r
- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32\r
- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64\r
- {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Itanium\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.Build.0 = Debug|Itanium\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Itanium\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.Build.0 = Release|Itanium\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64\r
- {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.Build.0 = Debug|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.Build.0 = Release|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Itanium\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.Build.0 = Debug|Itanium\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Itanium\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.Build.0 = Release|Itanium\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32\r
- {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.ActiveCfg = Debug|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.Build.0 = Debug|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.Build.0 = Debug|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.ActiveCfg = Debug|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.Build.0 = Debug|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Itanium.ActiveCfg = Release|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Itanium.Build.0 = Release|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.ActiveCfg = Release|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.Build.0 = Release|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.ActiveCfg = Release|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.Build.0 = Release|x64\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32\r
- {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64\r
- EndGlobalSection\r
- GlobalSection(SolutionProperties) = preSolution\r
- HideSolutionNode = FALSE\r
- EndGlobalSection\r
-EndGlobal\r
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="9,00"\r
- Name="zlibvc"\r
- ProjectGUID="{8FD826F8-3739-44E6-8CC8-997122E53B8D}"\r
- RootNamespace="zlibvc"\r
- TargetFrameworkVersion="131072"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- <Platform\r
- Name="x64"\r
- />\r
- <Platform\r
- Name="Itanium"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="x86\ZlibDll$(ConfigurationName)"\r
- IntermediateDirectory="x86\ZlibDll$(ConfigurationName)\Tmp"\r
- ConfigurationType="2"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- UseOfMFC="0"\r
- ATLMinimizesCRunTimeLibraryUsage="false"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- PreprocessorDefinitions="_DEBUG"\r
- MkTypLibCompatible="true"\r
- SuppressStartupBanner="true"\r
- TargetEnvironment="1"\r
- TypeLibraryName="$(OutDir)/zlibvc.tlb"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="..\..\..;..\..\masmx86"\r
- PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF"\r
- ExceptionHandling="0"\r
- RuntimeLibrary="1"\r
- BufferSecurityCheck="false"\r
- PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"\r
- AssemblerListingLocation="$(IntDir)\"\r
- ObjectFile="$(IntDir)\"\r
- ProgramDataBaseFileName="$(OutDir)\"\r
- BrowseInformation="0"\r
- WarningLevel="3"\r
- SuppressStartupBanner="true"\r
- DebugInformationFormat="4"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- PreprocessorDefinitions="_DEBUG"\r
- Culture="1036"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalOptions="/MACHINE:I386"\r
- AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"\r
- OutputFile="$(OutDir)\zlibwapi.dll"\r
- LinkIncremental="2"\r
- SuppressStartupBanner="true"\r
- GenerateManifest="false"\r
- ModuleDefinitionFile=".\zlibvc.def"\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"\r
- GenerateMapFile="true"\r
- MapFileName="$(OutDir)/zlibwapi.map"\r
- SubSystem="2"\r
- RandomizedBaseAddress="1"\r
- DataExecutionPrevention="0"\r
- ImportLibrary="$(OutDir)/zlibwapi.lib"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Debug|x64"\r
- OutputDirectory="x64\ZlibDll$(ConfigurationName)"\r
- IntermediateDirectory="x64\ZlibDll$(ConfigurationName)\Tmp"\r
- ConfigurationType="2"\r
- InheritedPropertySheets="UpgradeFromVC70.vsprops"\r
- UseOfMFC="0"\r
- ATLMinimizesCRunTimeLibraryUsage="false"\r
- >\r
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- MapFileName="$(OutDir)/zlibwapi.map"\r
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- ImportLibrary="$(OutDir)/zlibwapi.lib"\r
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- <Tool\r
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- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
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- <File\r
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- </File>\r
- <File\r
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- </File>\r
- <File\r
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- RelativePath="..\..\..\inffast.c"\r
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- RelativePath="..\..\..\inflate.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\inftrees.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\minizip\ioapi.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\minizip\iowin32.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\trees.c"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\..\..\uncompr.c"\r
- >\r
- </File>\r
- <File\r
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- >\r
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- >\r
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- />\r
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- />\r
- </FileConfiguration>\r
- </File>\r
- <File\r
- RelativePath=".\zlib.rc"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\zlibvc.def"\r
- >\r
- </File>\r
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- RelativePath="..\..\..\zutil.c"\r
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- RelativePath="..\..\..\infblock.h"\r
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- </File>\r
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- RelativePath="..\..\..\zutil.h"\r
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- Name="Resource Files"\r
- Filter="ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe"\r
- >\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-This directory contains examples of the use of zlib and other relevant
-programs and documentation.
-
-enough.c
- calculation and justification of ENOUGH parameter in inftrees.h
- - calculates the maximum table space used in inflate tree
- construction over all possible Huffman codes
-
-fitblk.c
- compress just enough input to nearly fill a requested output size
- - zlib isn't designed to do this, but fitblk does it anyway
-
-gun.c
- uncompress a gzip file
- - illustrates the use of inflateBack() for high speed file-to-file
- decompression using call-back functions
- - is approximately twice as fast as gzip -d
- - also provides Unix uncompress functionality, again twice as fast
-
-gzappend.c
- append to a gzip file
- - illustrates the use of the Z_BLOCK flush parameter for inflate()
- - illustrates the use of deflatePrime() to start at any bit
-
-gzjoin.c
- join gzip files without recalculating the crc or recompressing
- - illustrates the use of the Z_BLOCK flush parameter for inflate()
- - illustrates the use of crc32_combine()
-
-gzlog.c
-gzlog.h
- efficiently and robustly maintain a message log file in gzip format
- - illustrates use of raw deflate, Z_PARTIAL_FLUSH, deflatePrime(),
- and deflateSetDictionary()
- - illustrates use of a gzip header extra field
-
-zlib_how.html
- painfully comprehensive description of zpipe.c (see below)
- - describes in excruciating detail the use of deflate() and inflate()
-
-zpipe.c
- reads and writes zlib streams from stdin to stdout
- - illustrates the proper use of deflate() and inflate()
- - deeply commented in zlib_how.html (see above)
-
-zran.c
- index a zlib or gzip stream and randomly access it
- - illustrates the use of Z_BLOCK, inflatePrime(), and
- inflateSetDictionary() to provide random access
+++ /dev/null
-/* enough.c -- determine the maximum size of inflate's Huffman code tables over
- * all possible valid and complete Huffman codes, subject to a length limit.
- * Copyright (C) 2007, 2008, 2012 Mark Adler
- * Version 1.4 18 August 2012 Mark Adler
- */
-
-/* Version history:
- 1.0 3 Jan 2007 First version (derived from codecount.c version 1.4)
- 1.1 4 Jan 2007 Use faster incremental table usage computation
- Prune examine() search on previously visited states
- 1.2 5 Jan 2007 Comments clean up
- As inflate does, decrease root for short codes
- Refuse cases where inflate would increase root
- 1.3 17 Feb 2008 Add argument for initial root table size
- Fix bug for initial root table size == max - 1
- Use a macro to compute the history index
- 1.4 18 Aug 2012 Avoid shifts more than bits in type (caused endless loop!)
- Clean up comparisons of different types
- Clean up code indentation
- */
-
-/*
- Examine all possible Huffman codes for a given number of symbols and a
- maximum code length in bits to determine the maximum table size for zilb's
- inflate. Only complete Huffman codes are counted.
-
- Two codes are considered distinct if the vectors of the number of codes per
- length are not identical. So permutations of the symbol assignments result
- in the same code for the counting, as do permutations of the assignments of
- the bit values to the codes (i.e. only canonical codes are counted).
-
- We build a code from shorter to longer lengths, determining how many symbols
- are coded at each length. At each step, we have how many symbols remain to
- be coded, what the last code length used was, and how many bit patterns of
- that length remain unused. Then we add one to the code length and double the
- number of unused patterns to graduate to the next code length. We then
- assign all portions of the remaining symbols to that code length that
- preserve the properties of a correct and eventually complete code. Those
- properties are: we cannot use more bit patterns than are available; and when
- all the symbols are used, there are exactly zero possible bit patterns
- remaining.
-
- The inflate Huffman decoding algorithm uses two-level lookup tables for
- speed. There is a single first-level table to decode codes up to root bits
- in length (root == 9 in the current inflate implementation). The table
- has 1 << root entries and is indexed by the next root bits of input. Codes
- shorter than root bits have replicated table entries, so that the correct
- entry is pointed to regardless of the bits that follow the short code. If
- the code is longer than root bits, then the table entry points to a second-
- level table. The size of that table is determined by the longest code with
- that root-bit prefix. If that longest code has length len, then the table
- has size 1 << (len - root), to index the remaining bits in that set of
- codes. Each subsequent root-bit prefix then has its own sub-table. The
- total number of table entries required by the code is calculated
- incrementally as the number of codes at each bit length is populated. When
- all of the codes are shorter than root bits, then root is reduced to the
- longest code length, resulting in a single, smaller, one-level table.
-
- The inflate algorithm also provides for small values of root (relative to
- the log2 of the number of symbols), where the shortest code has more bits
- than root. In that case, root is increased to the length of the shortest
- code. This program, by design, does not handle that case, so it is verified
- that the number of symbols is less than 2^(root + 1).
-
- In order to speed up the examination (by about ten orders of magnitude for
- the default arguments), the intermediate states in the build-up of a code
- are remembered and previously visited branches are pruned. The memory
- required for this will increase rapidly with the total number of symbols and
- the maximum code length in bits. However this is a very small price to pay
- for the vast speedup.
-
- First, all of the possible Huffman codes are counted, and reachable
- intermediate states are noted by a non-zero count in a saved-results array.
- Second, the intermediate states that lead to (root + 1) bit or longer codes
- are used to look at all sub-codes from those junctures for their inflate
- memory usage. (The amount of memory used is not affected by the number of
- codes of root bits or less in length.) Third, the visited states in the
- construction of those sub-codes and the associated calculation of the table
- size is recalled in order to avoid recalculating from the same juncture.
- Beginning the code examination at (root + 1) bit codes, which is enabled by
- identifying the reachable nodes, accounts for about six of the orders of
- magnitude of improvement for the default arguments. About another four
- orders of magnitude come from not revisiting previous states. Out of
- approximately 2x10^16 possible Huffman codes, only about 2x10^6 sub-codes
- need to be examined to cover all of the possible table memory usage cases
- for the default arguments of 286 symbols limited to 15-bit codes.
-
- Note that an unsigned long long type is used for counting. It is quite easy
- to exceed the capacity of an eight-byte integer with a large number of
- symbols and a large maximum code length, so multiple-precision arithmetic
- would need to replace the unsigned long long arithmetic in that case. This
- program will abort if an overflow occurs. The big_t type identifies where
- the counting takes place.
-
- An unsigned long long type is also used for calculating the number of
- possible codes remaining at the maximum length. This limits the maximum
- code length to the number of bits in a long long minus the number of bits
- needed to represent the symbols in a flat code. The code_t type identifies
- where the bit pattern counting takes place.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#define local static
-
-/* special data types */
-typedef unsigned long long big_t; /* type for code counting */
-typedef unsigned long long code_t; /* type for bit pattern counting */
-struct tab { /* type for been here check */
- size_t len; /* length of bit vector in char's */
- char *vec; /* allocated bit vector */
-};
-
-/* The array for saving results, num[], is indexed with this triplet:
-
- syms: number of symbols remaining to code
- left: number of available bit patterns at length len
- len: number of bits in the codes currently being assigned
-
- Those indices are constrained thusly when saving results:
-
- syms: 3..totsym (totsym == total symbols to code)
- left: 2..syms - 1, but only the evens (so syms == 8 -> 2, 4, 6)
- len: 1..max - 1 (max == maximum code length in bits)
-
- syms == 2 is not saved since that immediately leads to a single code. left
- must be even, since it represents the number of available bit patterns at
- the current length, which is double the number at the previous length.
- left ends at syms-1 since left == syms immediately results in a single code.
- (left > sym is not allowed since that would result in an incomplete code.)
- len is less than max, since the code completes immediately when len == max.
-
- The offset into the array is calculated for the three indices with the
- first one (syms) being outermost, and the last one (len) being innermost.
- We build the array with length max-1 lists for the len index, with syms-3
- of those for each symbol. There are totsym-2 of those, with each one
- varying in length as a function of sym. See the calculation of index in
- count() for the index, and the calculation of size in main() for the size
- of the array.
-
- For the deflate example of 286 symbols limited to 15-bit codes, the array
- has 284,284 entries, taking up 2.17 MB for an 8-byte big_t. More than
- half of the space allocated for saved results is actually used -- not all
- possible triplets are reached in the generation of valid Huffman codes.
- */
-
-/* The array for tracking visited states, done[], is itself indexed identically
- to the num[] array as described above for the (syms, left, len) triplet.
- Each element in the array is further indexed by the (mem, rem) doublet,
- where mem is the amount of inflate table space used so far, and rem is the
- remaining unused entries in the current inflate sub-table. Each indexed
- element is simply one bit indicating whether the state has been visited or
- not. Since the ranges for mem and rem are not known a priori, each bit
- vector is of a variable size, and grows as needed to accommodate the visited
- states. mem and rem are used to calculate a single index in a triangular
- array. Since the range of mem is expected in the default case to be about
- ten times larger than the range of rem, the array is skewed to reduce the
- memory usage, with eight times the range for mem than for rem. See the
- calculations for offset and bit in beenhere() for the details.
-
- For the deflate example of 286 symbols limited to 15-bit codes, the bit
- vectors grow to total approximately 21 MB, in addition to the 4.3 MB done[]
- array itself.
- */
-
-/* Globals to avoid propagating constants or constant pointers recursively */
-local int max; /* maximum allowed bit length for the codes */
-local int root; /* size of base code table in bits */
-local int large; /* largest code table so far */
-local size_t size; /* number of elements in num and done */
-local int *code; /* number of symbols assigned to each bit length */
-local big_t *num; /* saved results array for code counting */
-local struct tab *done; /* states already evaluated array */
-
-/* Index function for num[] and done[] */
-#define INDEX(i,j,k) (((size_t)((i-1)>>1)*((i-2)>>1)+(j>>1)-1)*(max-1)+k-1)
-
-/* Free allocated space. Uses globals code, num, and done. */
-local void cleanup(void)
-{
- size_t n;
-
- if (done != NULL) {
- for (n = 0; n < size; n++)
- if (done[n].len)
- free(done[n].vec);
- free(done);
- }
- if (num != NULL)
- free(num);
- if (code != NULL)
- free(code);
-}
-
-/* Return the number of possible Huffman codes using bit patterns of lengths
- len through max inclusive, coding syms symbols, with left bit patterns of
- length len unused -- return -1 if there is an overflow in the counting.
- Keep a record of previous results in num to prevent repeating the same
- calculation. Uses the globals max and num. */
-local big_t count(int syms, int len, int left)
-{
- big_t sum; /* number of possible codes from this juncture */
- big_t got; /* value returned from count() */
- int least; /* least number of syms to use at this juncture */
- int most; /* most number of syms to use at this juncture */
- int use; /* number of bit patterns to use in next call */
- size_t index; /* index of this case in *num */
-
- /* see if only one possible code */
- if (syms == left)
- return 1;
-
- /* note and verify the expected state */
- assert(syms > left && left > 0 && len < max);
-
- /* see if we've done this one already */
- index = INDEX(syms, left, len);
- got = num[index];
- if (got)
- return got; /* we have -- return the saved result */
-
- /* we need to use at least this many bit patterns so that the code won't be
- incomplete at the next length (more bit patterns than symbols) */
- least = (left << 1) - syms;
- if (least < 0)
- least = 0;
-
- /* we can use at most this many bit patterns, lest there not be enough
- available for the remaining symbols at the maximum length (if there were
- no limit to the code length, this would become: most = left - 1) */
- most = (((code_t)left << (max - len)) - syms) /
- (((code_t)1 << (max - len)) - 1);
-
- /* count all possible codes from this juncture and add them up */
- sum = 0;
- for (use = least; use <= most; use++) {
- got = count(syms - use, len + 1, (left - use) << 1);
- sum += got;
- if (got == (big_t)0 - 1 || sum < got) /* overflow */
- return (big_t)0 - 1;
- }
-
- /* verify that all recursive calls are productive */
- assert(sum != 0);
-
- /* save the result and return it */
- num[index] = sum;
- return sum;
-}
-
-/* Return true if we've been here before, set to true if not. Set a bit in a
- bit vector to indicate visiting this state. Each (syms,len,left) state
- has a variable size bit vector indexed by (mem,rem). The bit vector is
- lengthened if needed to allow setting the (mem,rem) bit. */
-local int beenhere(int syms, int len, int left, int mem, int rem)
-{
- size_t index; /* index for this state's bit vector */
- size_t offset; /* offset in this state's bit vector */
- int bit; /* mask for this state's bit */
- size_t length; /* length of the bit vector in bytes */
- char *vector; /* new or enlarged bit vector */
-
- /* point to vector for (syms,left,len), bit in vector for (mem,rem) */
- index = INDEX(syms, left, len);
- mem -= 1 << root;
- offset = (mem >> 3) + rem;
- offset = ((offset * (offset + 1)) >> 1) + rem;
- bit = 1 << (mem & 7);
-
- /* see if we've been here */
- length = done[index].len;
- if (offset < length && (done[index].vec[offset] & bit) != 0)
- return 1; /* done this! */
-
- /* we haven't been here before -- set the bit to show we have now */
-
- /* see if we need to lengthen the vector in order to set the bit */
- if (length <= offset) {
- /* if we have one already, enlarge it, zero out the appended space */
- if (length) {
- do {
- length <<= 1;
- } while (length <= offset);
- vector = realloc(done[index].vec, length);
- if (vector != NULL)
- memset(vector + done[index].len, 0, length - done[index].len);
- }
-
- /* otherwise we need to make a new vector and zero it out */
- else {
- length = 1 << (len - root);
- while (length <= offset)
- length <<= 1;
- vector = calloc(length, sizeof(char));
- }
-
- /* in either case, bail if we can't get the memory */
- if (vector == NULL) {
- fputs("abort: unable to allocate enough memory\n", stderr);
- cleanup();
- exit(1);
- }
-
- /* install the new vector */
- done[index].len = length;
- done[index].vec = vector;
- }
-
- /* set the bit */
- done[index].vec[offset] |= bit;
- return 0;
-}
-
-/* Examine all possible codes from the given node (syms, len, left). Compute
- the amount of memory required to build inflate's decoding tables, where the
- number of code structures used so far is mem, and the number remaining in
- the current sub-table is rem. Uses the globals max, code, root, large, and
- done. */
-local void examine(int syms, int len, int left, int mem, int rem)
-{
- int least; /* least number of syms to use at this juncture */
- int most; /* most number of syms to use at this juncture */
- int use; /* number of bit patterns to use in next call */
-
- /* see if we have a complete code */
- if (syms == left) {
- /* set the last code entry */
- code[len] = left;
-
- /* complete computation of memory used by this code */
- while (rem < left) {
- left -= rem;
- rem = 1 << (len - root);
- mem += rem;
- }
- assert(rem == left);
-
- /* if this is a new maximum, show the entries used and the sub-code */
- if (mem > large) {
- large = mem;
- printf("max %d: ", mem);
- for (use = root + 1; use <= max; use++)
- if (code[use])
- printf("%d[%d] ", code[use], use);
- putchar('\n');
- fflush(stdout);
- }
-
- /* remove entries as we drop back down in the recursion */
- code[len] = 0;
- return;
- }
-
- /* prune the tree if we can */
- if (beenhere(syms, len, left, mem, rem))
- return;
-
- /* we need to use at least this many bit patterns so that the code won't be
- incomplete at the next length (more bit patterns than symbols) */
- least = (left << 1) - syms;
- if (least < 0)
- least = 0;
-
- /* we can use at most this many bit patterns, lest there not be enough
- available for the remaining symbols at the maximum length (if there were
- no limit to the code length, this would become: most = left - 1) */
- most = (((code_t)left << (max - len)) - syms) /
- (((code_t)1 << (max - len)) - 1);
-
- /* occupy least table spaces, creating new sub-tables as needed */
- use = least;
- while (rem < use) {
- use -= rem;
- rem = 1 << (len - root);
- mem += rem;
- }
- rem -= use;
-
- /* examine codes from here, updating table space as we go */
- for (use = least; use <= most; use++) {
- code[len] = use;
- examine(syms - use, len + 1, (left - use) << 1,
- mem + (rem ? 1 << (len - root) : 0), rem << 1);
- if (rem == 0) {
- rem = 1 << (len - root);
- mem += rem;
- }
- rem--;
- }
-
- /* remove entries as we drop back down in the recursion */
- code[len] = 0;
-}
-
-/* Look at all sub-codes starting with root + 1 bits. Look at only the valid
- intermediate code states (syms, left, len). For each completed code,
- calculate the amount of memory required by inflate to build the decoding
- tables. Find the maximum amount of memory required and show the code that
- requires that maximum. Uses the globals max, root, and num. */
-local void enough(int syms)
-{
- int n; /* number of remaing symbols for this node */
- int left; /* number of unused bit patterns at this length */
- size_t index; /* index of this case in *num */
-
- /* clear code */
- for (n = 0; n <= max; n++)
- code[n] = 0;
-
- /* look at all (root + 1) bit and longer codes */
- large = 1 << root; /* base table */
- if (root < max) /* otherwise, there's only a base table */
- for (n = 3; n <= syms; n++)
- for (left = 2; left < n; left += 2)
- {
- /* look at all reachable (root + 1) bit nodes, and the
- resulting codes (complete at root + 2 or more) */
- index = INDEX(n, left, root + 1);
- if (root + 1 < max && num[index]) /* reachable node */
- examine(n, root + 1, left, 1 << root, 0);
-
- /* also look at root bit codes with completions at root + 1
- bits (not saved in num, since complete), just in case */
- if (num[index - 1] && n <= left << 1)
- examine((n - left) << 1, root + 1, (n - left) << 1,
- 1 << root, 0);
- }
-
- /* done */
- printf("done: maximum of %d table entries\n", large);
-}
-
-/*
- Examine and show the total number of possible Huffman codes for a given
- maximum number of symbols, initial root table size, and maximum code length
- in bits -- those are the command arguments in that order. The default
- values are 286, 9, and 15 respectively, for the deflate literal/length code.
- The possible codes are counted for each number of coded symbols from two to
- the maximum. The counts for each of those and the total number of codes are
- shown. The maximum number of inflate table entires is then calculated
- across all possible codes. Each new maximum number of table entries and the
- associated sub-code (starting at root + 1 == 10 bits) is shown.
-
- To count and examine Huffman codes that are not length-limited, provide a
- maximum length equal to the number of symbols minus one.
-
- For the deflate literal/length code, use "enough". For the deflate distance
- code, use "enough 30 6".
-
- This uses the %llu printf format to print big_t numbers, which assumes that
- big_t is an unsigned long long. If the big_t type is changed (for example
- to a multiple precision type), the method of printing will also need to be
- updated.
- */
-int main(int argc, char **argv)
-{
- int syms; /* total number of symbols to code */
- int n; /* number of symbols to code for this run */
- big_t got; /* return value of count() */
- big_t sum; /* accumulated number of codes over n */
- code_t word; /* for counting bits in code_t */
-
- /* set up globals for cleanup() */
- code = NULL;
- num = NULL;
- done = NULL;
-
- /* get arguments -- default to the deflate literal/length code */
- syms = 286;
- root = 9;
- max = 15;
- if (argc > 1) {
- syms = atoi(argv[1]);
- if (argc > 2) {
- root = atoi(argv[2]);
- if (argc > 3)
- max = atoi(argv[3]);
- }
- }
- if (argc > 4 || syms < 2 || root < 1 || max < 1) {
- fputs("invalid arguments, need: [sym >= 2 [root >= 1 [max >= 1]]]\n",
- stderr);
- return 1;
- }
-
- /* if not restricting the code length, the longest is syms - 1 */
- if (max > syms - 1)
- max = syms - 1;
-
- /* determine the number of bits in a code_t */
- for (n = 0, word = 1; word; n++, word <<= 1)
- ;
-
- /* make sure that the calculation of most will not overflow */
- if (max > n || (code_t)(syms - 2) >= (((code_t)0 - 1) >> (max - 1))) {
- fputs("abort: code length too long for internal types\n", stderr);
- return 1;
- }
-
- /* reject impossible code requests */
- if ((code_t)(syms - 1) > ((code_t)1 << max) - 1) {
- fprintf(stderr, "%d symbols cannot be coded in %d bits\n",
- syms, max);
- return 1;
- }
-
- /* allocate code vector */
- code = calloc(max + 1, sizeof(int));
- if (code == NULL) {
- fputs("abort: unable to allocate enough memory\n", stderr);
- return 1;
- }
-
- /* determine size of saved results array, checking for overflows,
- allocate and clear the array (set all to zero with calloc()) */
- if (syms == 2) /* iff max == 1 */
- num = NULL; /* won't be saving any results */
- else {
- size = syms >> 1;
- if (size > ((size_t)0 - 1) / (n = (syms - 1) >> 1) ||
- (size *= n, size > ((size_t)0 - 1) / (n = max - 1)) ||
- (size *= n, size > ((size_t)0 - 1) / sizeof(big_t)) ||
- (num = calloc(size, sizeof(big_t))) == NULL) {
- fputs("abort: unable to allocate enough memory\n", stderr);
- cleanup();
- return 1;
- }
- }
-
- /* count possible codes for all numbers of symbols, add up counts */
- sum = 0;
- for (n = 2; n <= syms; n++) {
- got = count(n, 1, 2);
- sum += got;
- if (got == (big_t)0 - 1 || sum < got) { /* overflow */
- fputs("abort: can't count that high!\n", stderr);
- cleanup();
- return 1;
- }
- printf("%llu %d-codes\n", got, n);
- }
- printf("%llu total codes for 2 to %d symbols", sum, syms);
- if (max < syms - 1)
- printf(" (%d-bit length limit)\n", max);
- else
- puts(" (no length limit)");
-
- /* allocate and clear done array for beenhere() */
- if (syms == 2)
- done = NULL;
- else if (size > ((size_t)0 - 1) / sizeof(struct tab) ||
- (done = calloc(size, sizeof(struct tab))) == NULL) {
- fputs("abort: unable to allocate enough memory\n", stderr);
- cleanup();
- return 1;
- }
-
- /* find and show maximum inflate table usage */
- if (root > max) /* reduce root to max length */
- root = max;
- if ((code_t)syms < ((code_t)1 << (root + 1)))
- enough(syms);
- else
- puts("cannot handle minimum code lengths > root");
-
- /* done */
- cleanup();
- return 0;
-}
+++ /dev/null
-/* fitblk.c: example of fitting compressed output to a specified size
- Not copyrighted -- provided to the public domain
- Version 1.1 25 November 2004 Mark Adler */
-
-/* Version history:
- 1.0 24 Nov 2004 First version
- 1.1 25 Nov 2004 Change deflateInit2() to deflateInit()
- Use fixed-size, stack-allocated raw buffers
- Simplify code moving compression to subroutines
- Use assert() for internal errors
- Add detailed description of approach
- */
-
-/* Approach to just fitting a requested compressed size:
-
- fitblk performs three compression passes on a portion of the input
- data in order to determine how much of that input will compress to
- nearly the requested output block size. The first pass generates
- enough deflate blocks to produce output to fill the requested
- output size plus a specfied excess amount (see the EXCESS define
- below). The last deflate block may go quite a bit past that, but
- is discarded. The second pass decompresses and recompresses just
- the compressed data that fit in the requested plus excess sized
- buffer. The deflate process is terminated after that amount of
- input, which is less than the amount consumed on the first pass.
- The last deflate block of the result will be of a comparable size
- to the final product, so that the header for that deflate block and
- the compression ratio for that block will be about the same as in
- the final product. The third compression pass decompresses the
- result of the second step, but only the compressed data up to the
- requested size minus an amount to allow the compressed stream to
- complete (see the MARGIN define below). That will result in a
- final compressed stream whose length is less than or equal to the
- requested size. Assuming sufficient input and a requested size
- greater than a few hundred bytes, the shortfall will typically be
- less than ten bytes.
-
- If the input is short enough that the first compression completes
- before filling the requested output size, then that compressed
- stream is return with no recompression.
-
- EXCESS is chosen to be just greater than the shortfall seen in a
- two pass approach similar to the above. That shortfall is due to
- the last deflate block compressing more efficiently with a smaller
- header on the second pass. EXCESS is set to be large enough so
- that there is enough uncompressed data for the second pass to fill
- out the requested size, and small enough so that the final deflate
- block of the second pass will be close in size to the final deflate
- block of the third and final pass. MARGIN is chosen to be just
- large enough to assure that the final compression has enough room
- to complete in all cases.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-#include "zlib.h"
-
-#define local static
-
-/* print nastygram and leave */
-local void quit(char *why)
-{
- fprintf(stderr, "fitblk abort: %s\n", why);
- exit(1);
-}
-
-#define RAWLEN 4096 /* intermediate uncompressed buffer size */
-
-/* compress from file to def until provided buffer is full or end of
- input reached; return last deflate() return value, or Z_ERRNO if
- there was read error on the file */
-local int partcompress(FILE *in, z_streamp def)
-{
- int ret, flush;
- unsigned char raw[RAWLEN];
-
- flush = Z_NO_FLUSH;
- do {
- def->avail_in = fread(raw, 1, RAWLEN, in);
- if (ferror(in))
- return Z_ERRNO;
- def->next_in = raw;
- if (feof(in))
- flush = Z_FINISH;
- ret = deflate(def, flush);
- assert(ret != Z_STREAM_ERROR);
- } while (def->avail_out != 0 && flush == Z_NO_FLUSH);
- return ret;
-}
-
-/* recompress from inf's input to def's output; the input for inf and
- the output for def are set in those structures before calling;
- return last deflate() return value, or Z_MEM_ERROR if inflate()
- was not able to allocate enough memory when it needed to */
-local int recompress(z_streamp inf, z_streamp def)
-{
- int ret, flush;
- unsigned char raw[RAWLEN];
-
- flush = Z_NO_FLUSH;
- do {
- /* decompress */
- inf->avail_out = RAWLEN;
- inf->next_out = raw;
- ret = inflate(inf, Z_NO_FLUSH);
- assert(ret != Z_STREAM_ERROR && ret != Z_DATA_ERROR &&
- ret != Z_NEED_DICT);
- if (ret == Z_MEM_ERROR)
- return ret;
-
- /* compress what was decompresed until done or no room */
- def->avail_in = RAWLEN - inf->avail_out;
- def->next_in = raw;
- if (inf->avail_out != 0)
- flush = Z_FINISH;
- ret = deflate(def, flush);
- assert(ret != Z_STREAM_ERROR);
- } while (ret != Z_STREAM_END && def->avail_out != 0);
- return ret;
-}
-
-#define EXCESS 256 /* empirically determined stream overage */
-#define MARGIN 8 /* amount to back off for completion */
-
-/* compress from stdin to fixed-size block on stdout */
-int main(int argc, char **argv)
-{
- int ret; /* return code */
- unsigned size; /* requested fixed output block size */
- unsigned have; /* bytes written by deflate() call */
- unsigned char *blk; /* intermediate and final stream */
- unsigned char *tmp; /* close to desired size stream */
- z_stream def, inf; /* zlib deflate and inflate states */
-
- /* get requested output size */
- if (argc != 2)
- quit("need one argument: size of output block");
- ret = strtol(argv[1], argv + 1, 10);
- if (argv[1][0] != 0)
- quit("argument must be a number");
- if (ret < 8) /* 8 is minimum zlib stream size */
- quit("need positive size of 8 or greater");
- size = (unsigned)ret;
-
- /* allocate memory for buffers and compression engine */
- blk = malloc(size + EXCESS);
- def.zalloc = Z_NULL;
- def.zfree = Z_NULL;
- def.opaque = Z_NULL;
- ret = deflateInit(&def, Z_DEFAULT_COMPRESSION);
- if (ret != Z_OK || blk == NULL)
- quit("out of memory");
-
- /* compress from stdin until output full, or no more input */
- def.avail_out = size + EXCESS;
- def.next_out = blk;
- ret = partcompress(stdin, &def);
- if (ret == Z_ERRNO)
- quit("error reading input");
-
- /* if it all fit, then size was undersubscribed -- done! */
- if (ret == Z_STREAM_END && def.avail_out >= EXCESS) {
- /* write block to stdout */
- have = size + EXCESS - def.avail_out;
- if (fwrite(blk, 1, have, stdout) != have || ferror(stdout))
- quit("error writing output");
-
- /* clean up and print results to stderr */
- ret = deflateEnd(&def);
- assert(ret != Z_STREAM_ERROR);
- free(blk);
- fprintf(stderr,
- "%u bytes unused out of %u requested (all input)\n",
- size - have, size);
- return 0;
- }
-
- /* it didn't all fit -- set up for recompression */
- inf.zalloc = Z_NULL;
- inf.zfree = Z_NULL;
- inf.opaque = Z_NULL;
- inf.avail_in = 0;
- inf.next_in = Z_NULL;
- ret = inflateInit(&inf);
- tmp = malloc(size + EXCESS);
- if (ret != Z_OK || tmp == NULL)
- quit("out of memory");
- ret = deflateReset(&def);
- assert(ret != Z_STREAM_ERROR);
-
- /* do first recompression close to the right amount */
- inf.avail_in = size + EXCESS;
- inf.next_in = blk;
- def.avail_out = size + EXCESS;
- def.next_out = tmp;
- ret = recompress(&inf, &def);
- if (ret == Z_MEM_ERROR)
- quit("out of memory");
-
- /* set up for next reocmpression */
- ret = inflateReset(&inf);
- assert(ret != Z_STREAM_ERROR);
- ret = deflateReset(&def);
- assert(ret != Z_STREAM_ERROR);
-
- /* do second and final recompression (third compression) */
- inf.avail_in = size - MARGIN; /* assure stream will complete */
- inf.next_in = tmp;
- def.avail_out = size;
- def.next_out = blk;
- ret = recompress(&inf, &def);
- if (ret == Z_MEM_ERROR)
- quit("out of memory");
- assert(ret == Z_STREAM_END); /* otherwise MARGIN too small */
-
- /* done -- write block to stdout */
- have = size - def.avail_out;
- if (fwrite(blk, 1, have, stdout) != have || ferror(stdout))
- quit("error writing output");
-
- /* clean up and print results to stderr */
- free(tmp);
- ret = inflateEnd(&inf);
- assert(ret != Z_STREAM_ERROR);
- ret = deflateEnd(&def);
- assert(ret != Z_STREAM_ERROR);
- free(blk);
- fprintf(stderr,
- "%u bytes unused out of %u requested (%lu input)\n",
- size - have, size, def.total_in);
- return 0;
-}
+++ /dev/null
-/* gun.c -- simple gunzip to give an example of the use of inflateBack()
- * Copyright (C) 2003, 2005, 2008, 2010, 2012 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- Version 1.7 12 August 2012 Mark Adler */
-
-/* Version history:
- 1.0 16 Feb 2003 First version for testing of inflateBack()
- 1.1 21 Feb 2005 Decompress concatenated gzip streams
- Remove use of "this" variable (C++ keyword)
- Fix return value for in()
- Improve allocation failure checking
- Add typecasting for void * structures
- Add -h option for command version and usage
- Add a bunch of comments
- 1.2 20 Mar 2005 Add Unix compress (LZW) decompression
- Copy file attributes from input file to output file
- 1.3 12 Jun 2005 Add casts for error messages [Oberhumer]
- 1.4 8 Dec 2006 LZW decompression speed improvements
- 1.5 9 Feb 2008 Avoid warning in latest version of gcc
- 1.6 17 Jan 2010 Avoid signed/unsigned comparison warnings
- 1.7 12 Aug 2012 Update for z_const usage in zlib 1.2.8
- */
-
-/*
- gun [ -t ] [ name ... ]
-
- decompresses the data in the named gzip files. If no arguments are given,
- gun will decompress from stdin to stdout. The names must end in .gz, -gz,
- .z, -z, _z, or .Z. The uncompressed data will be written to a file name
- with the suffix stripped. On success, the original file is deleted. On
- failure, the output file is deleted. For most failures, the command will
- continue to process the remaining names on the command line. A memory
- allocation failure will abort the command. If -t is specified, then the
- listed files or stdin will be tested as gzip files for integrity (without
- checking for a proper suffix), no output will be written, and no files
- will be deleted.
-
- Like gzip, gun allows concatenated gzip streams and will decompress them,
- writing all of the uncompressed data to the output. Unlike gzip, gun allows
- an empty file on input, and will produce no error writing an empty output
- file.
-
- gun will also decompress files made by Unix compress, which uses LZW
- compression. These files are automatically detected by virtue of their
- magic header bytes. Since the end of Unix compress stream is marked by the
- end-of-file, they cannot be concantenated. If a Unix compress stream is
- encountered in an input file, it is the last stream in that file.
-
- Like gunzip and uncompress, the file attributes of the orignal compressed
- file are maintained in the final uncompressed file, to the extent that the
- user permissions allow it.
-
- On my Mac OS X PowerPC G4, gun is almost twice as fast as gunzip (version
- 1.2.4) is on the same file, when gun is linked with zlib 1.2.2. Also the
- LZW decompression provided by gun is about twice as fast as the standard
- Unix uncompress command.
- */
-
-/* external functions and related types and constants */
-#include <stdio.h> /* fprintf() */
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h> /* strerror(), strcmp(), strlen(), memcpy() */
-#include <errno.h> /* errno */
-#include <fcntl.h> /* open() */
-#include <unistd.h> /* read(), write(), close(), chown(), unlink() */
-#include <sys/types.h>
-#include <sys/stat.h> /* stat(), chmod() */
-#include <utime.h> /* utime() */
-#include "zlib.h" /* inflateBackInit(), inflateBack(), */
- /* inflateBackEnd(), crc32() */
-
-/* function declaration */
-#define local static
-
-/* buffer constants */
-#define SIZE 32768U /* input and output buffer sizes */
-#define PIECE 16384 /* limits i/o chunks for 16-bit int case */
-
-/* structure for infback() to pass to input function in() -- it maintains the
- input file and a buffer of size SIZE */
-struct ind {
- int infile;
- unsigned char *inbuf;
-};
-
-/* Load input buffer, assumed to be empty, and return bytes loaded and a
- pointer to them. read() is called until the buffer is full, or until it
- returns end-of-file or error. Return 0 on error. */
-local unsigned in(void *in_desc, z_const unsigned char **buf)
-{
- int ret;
- unsigned len;
- unsigned char *next;
- struct ind *me = (struct ind *)in_desc;
-
- next = me->inbuf;
- *buf = next;
- len = 0;
- do {
- ret = PIECE;
- if ((unsigned)ret > SIZE - len)
- ret = (int)(SIZE - len);
- ret = (int)read(me->infile, next, ret);
- if (ret == -1) {
- len = 0;
- break;
- }
- next += ret;
- len += ret;
- } while (ret != 0 && len < SIZE);
- return len;
-}
-
-/* structure for infback() to pass to output function out() -- it maintains the
- output file, a running CRC-32 check on the output and the total number of
- bytes output, both for checking against the gzip trailer. (The length in
- the gzip trailer is stored modulo 2^32, so it's ok if a long is 32 bits and
- the output is greater than 4 GB.) */
-struct outd {
- int outfile;
- int check; /* true if checking crc and total */
- unsigned long crc;
- unsigned long total;
-};
-
-/* Write output buffer and update the CRC-32 and total bytes written. write()
- is called until all of the output is written or an error is encountered.
- On success out() returns 0. For a write failure, out() returns 1. If the
- output file descriptor is -1, then nothing is written.
- */
-local int out(void *out_desc, unsigned char *buf, unsigned len)
-{
- int ret;
- struct outd *me = (struct outd *)out_desc;
-
- if (me->check) {
- me->crc = crc32(me->crc, buf, len);
- me->total += len;
- }
- if (me->outfile != -1)
- do {
- ret = PIECE;
- if ((unsigned)ret > len)
- ret = (int)len;
- ret = (int)write(me->outfile, buf, ret);
- if (ret == -1)
- return 1;
- buf += ret;
- len -= ret;
- } while (len != 0);
- return 0;
-}
-
-/* next input byte macro for use inside lunpipe() and gunpipe() */
-#define NEXT() (have ? 0 : (have = in(indp, &next)), \
- last = have ? (have--, (int)(*next++)) : -1)
-
-/* memory for gunpipe() and lunpipe() --
- the first 256 entries of prefix[] and suffix[] are never used, could
- have offset the index, but it's faster to waste the memory */
-unsigned char inbuf[SIZE]; /* input buffer */
-unsigned char outbuf[SIZE]; /* output buffer */
-unsigned short prefix[65536]; /* index to LZW prefix string */
-unsigned char suffix[65536]; /* one-character LZW suffix */
-unsigned char match[65280 + 2]; /* buffer for reversed match or gzip
- 32K sliding window */
-
-/* throw out what's left in the current bits byte buffer (this is a vestigial
- aspect of the compressed data format derived from an implementation that
- made use of a special VAX machine instruction!) */
-#define FLUSHCODE() \
- do { \
- left = 0; \
- rem = 0; \
- if (chunk > have) { \
- chunk -= have; \
- have = 0; \
- if (NEXT() == -1) \
- break; \
- chunk--; \
- if (chunk > have) { \
- chunk = have = 0; \
- break; \
- } \
- } \
- have -= chunk; \
- next += chunk; \
- chunk = 0; \
- } while (0)
-
-/* Decompress a compress (LZW) file from indp to outfile. The compress magic
- header (two bytes) has already been read and verified. There are have bytes
- of buffered input at next. strm is used for passing error information back
- to gunpipe().
-
- lunpipe() will return Z_OK on success, Z_BUF_ERROR for an unexpected end of
- file, read error, or write error (a write error indicated by strm->next_in
- not equal to Z_NULL), or Z_DATA_ERROR for invalid input.
- */
-local int lunpipe(unsigned have, z_const unsigned char *next, struct ind *indp,
- int outfile, z_stream *strm)
-{
- int last; /* last byte read by NEXT(), or -1 if EOF */
- unsigned chunk; /* bytes left in current chunk */
- int left; /* bits left in rem */
- unsigned rem; /* unused bits from input */
- int bits; /* current bits per code */
- unsigned code; /* code, table traversal index */
- unsigned mask; /* mask for current bits codes */
- int max; /* maximum bits per code for this stream */
- unsigned flags; /* compress flags, then block compress flag */
- unsigned end; /* last valid entry in prefix/suffix tables */
- unsigned temp; /* current code */
- unsigned prev; /* previous code */
- unsigned final; /* last character written for previous code */
- unsigned stack; /* next position for reversed string */
- unsigned outcnt; /* bytes in output buffer */
- struct outd outd; /* output structure */
- unsigned char *p;
-
- /* set up output */
- outd.outfile = outfile;
- outd.check = 0;
-
- /* process remainder of compress header -- a flags byte */
- flags = NEXT();
- if (last == -1)
- return Z_BUF_ERROR;
- if (flags & 0x60) {
- strm->msg = (char *)"unknown lzw flags set";
- return Z_DATA_ERROR;
- }
- max = flags & 0x1f;
- if (max < 9 || max > 16) {
- strm->msg = (char *)"lzw bits out of range";
- return Z_DATA_ERROR;
- }
- if (max == 9) /* 9 doesn't really mean 9 */
- max = 10;
- flags &= 0x80; /* true if block compress */
-
- /* clear table */
- bits = 9;
- mask = 0x1ff;
- end = flags ? 256 : 255;
-
- /* set up: get first 9-bit code, which is the first decompressed byte, but
- don't create a table entry until the next code */
- if (NEXT() == -1) /* no compressed data is ok */
- return Z_OK;
- final = prev = (unsigned)last; /* low 8 bits of code */
- if (NEXT() == -1) /* missing a bit */
- return Z_BUF_ERROR;
- if (last & 1) { /* code must be < 256 */
- strm->msg = (char *)"invalid lzw code";
- return Z_DATA_ERROR;
- }
- rem = (unsigned)last >> 1; /* remaining 7 bits */
- left = 7;
- chunk = bits - 2; /* 7 bytes left in this chunk */
- outbuf[0] = (unsigned char)final; /* write first decompressed byte */
- outcnt = 1;
-
- /* decode codes */
- stack = 0;
- for (;;) {
- /* if the table will be full after this, increment the code size */
- if (end >= mask && bits < max) {
- FLUSHCODE();
- bits++;
- mask <<= 1;
- mask++;
- }
-
- /* get a code of length bits */
- if (chunk == 0) /* decrement chunk modulo bits */
- chunk = bits;
- code = rem; /* low bits of code */
- if (NEXT() == -1) { /* EOF is end of compressed data */
- /* write remaining buffered output */
- if (outcnt && out(&outd, outbuf, outcnt)) {
- strm->next_in = outbuf; /* signal write error */
- return Z_BUF_ERROR;
- }
- return Z_OK;
- }
- code += (unsigned)last << left; /* middle (or high) bits of code */
- left += 8;
- chunk--;
- if (bits > left) { /* need more bits */
- if (NEXT() == -1) /* can't end in middle of code */
- return Z_BUF_ERROR;
- code += (unsigned)last << left; /* high bits of code */
- left += 8;
- chunk--;
- }
- code &= mask; /* mask to current code length */
- left -= bits; /* number of unused bits */
- rem = (unsigned)last >> (8 - left); /* unused bits from last byte */
-
- /* process clear code (256) */
- if (code == 256 && flags) {
- FLUSHCODE();
- bits = 9; /* initialize bits and mask */
- mask = 0x1ff;
- end = 255; /* empty table */
- continue; /* get next code */
- }
-
- /* special code to reuse last match */
- temp = code; /* save the current code */
- if (code > end) {
- /* Be picky on the allowed code here, and make sure that the code
- we drop through (prev) will be a valid index so that random
- input does not cause an exception. The code != end + 1 check is
- empirically derived, and not checked in the original uncompress
- code. If this ever causes a problem, that check could be safely
- removed. Leaving this check in greatly improves gun's ability
- to detect random or corrupted input after a compress header.
- In any case, the prev > end check must be retained. */
- if (code != end + 1 || prev > end) {
- strm->msg = (char *)"invalid lzw code";
- return Z_DATA_ERROR;
- }
- match[stack++] = (unsigned char)final;
- code = prev;
- }
-
- /* walk through linked list to generate output in reverse order */
- p = match + stack;
- while (code >= 256) {
- *p++ = suffix[code];
- code = prefix[code];
- }
- stack = p - match;
- match[stack++] = (unsigned char)code;
- final = code;
-
- /* link new table entry */
- if (end < mask) {
- end++;
- prefix[end] = (unsigned short)prev;
- suffix[end] = (unsigned char)final;
- }
-
- /* set previous code for next iteration */
- prev = temp;
-
- /* write output in forward order */
- while (stack > SIZE - outcnt) {
- while (outcnt < SIZE)
- outbuf[outcnt++] = match[--stack];
- if (out(&outd, outbuf, outcnt)) {
- strm->next_in = outbuf; /* signal write error */
- return Z_BUF_ERROR;
- }
- outcnt = 0;
- }
- p = match + stack;
- do {
- outbuf[outcnt++] = *--p;
- } while (p > match);
- stack = 0;
-
- /* loop for next code with final and prev as the last match, rem and
- left provide the first 0..7 bits of the next code, end is the last
- valid table entry */
- }
-}
-
-/* Decompress a gzip file from infile to outfile. strm is assumed to have been
- successfully initialized with inflateBackInit(). The input file may consist
- of a series of gzip streams, in which case all of them will be decompressed
- to the output file. If outfile is -1, then the gzip stream(s) integrity is
- checked and nothing is written.
-
- The return value is a zlib error code: Z_MEM_ERROR if out of memory,
- Z_DATA_ERROR if the header or the compressed data is invalid, or if the
- trailer CRC-32 check or length doesn't match, Z_BUF_ERROR if the input ends
- prematurely or a write error occurs, or Z_ERRNO if junk (not a another gzip
- stream) follows a valid gzip stream.
- */
-local int gunpipe(z_stream *strm, int infile, int outfile)
-{
- int ret, first, last;
- unsigned have, flags, len;
- z_const unsigned char *next = NULL;
- struct ind ind, *indp;
- struct outd outd;
-
- /* setup input buffer */
- ind.infile = infile;
- ind.inbuf = inbuf;
- indp = &ind;
-
- /* decompress concatenated gzip streams */
- have = 0; /* no input data read in yet */
- first = 1; /* looking for first gzip header */
- strm->next_in = Z_NULL; /* so Z_BUF_ERROR means EOF */
- for (;;) {
- /* look for the two magic header bytes for a gzip stream */
- if (NEXT() == -1) {
- ret = Z_OK;
- break; /* empty gzip stream is ok */
- }
- if (last != 31 || (NEXT() != 139 && last != 157)) {
- strm->msg = (char *)"incorrect header check";
- ret = first ? Z_DATA_ERROR : Z_ERRNO;
- break; /* not a gzip or compress header */
- }
- first = 0; /* next non-header is junk */
-
- /* process a compress (LZW) file -- can't be concatenated after this */
- if (last == 157) {
- ret = lunpipe(have, next, indp, outfile, strm);
- break;
- }
-
- /* process remainder of gzip header */
- ret = Z_BUF_ERROR;
- if (NEXT() != 8) { /* only deflate method allowed */
- if (last == -1) break;
- strm->msg = (char *)"unknown compression method";
- ret = Z_DATA_ERROR;
- break;
- }
- flags = NEXT(); /* header flags */
- NEXT(); /* discard mod time, xflgs, os */
- NEXT();
- NEXT();
- NEXT();
- NEXT();
- NEXT();
- if (last == -1) break;
- if (flags & 0xe0) {
- strm->msg = (char *)"unknown header flags set";
- ret = Z_DATA_ERROR;
- break;
- }
- if (flags & 4) { /* extra field */
- len = NEXT();
- len += (unsigned)(NEXT()) << 8;
- if (last == -1) break;
- while (len > have) {
- len -= have;
- have = 0;
- if (NEXT() == -1) break;
- len--;
- }
- if (last == -1) break;
- have -= len;
- next += len;
- }
- if (flags & 8) /* file name */
- while (NEXT() != 0 && last != -1)
- ;
- if (flags & 16) /* comment */
- while (NEXT() != 0 && last != -1)
- ;
- if (flags & 2) { /* header crc */
- NEXT();
- NEXT();
- }
- if (last == -1) break;
-
- /* set up output */
- outd.outfile = outfile;
- outd.check = 1;
- outd.crc = crc32(0L, Z_NULL, 0);
- outd.total = 0;
-
- /* decompress data to output */
- strm->next_in = next;
- strm->avail_in = have;
- ret = inflateBack(strm, in, indp, out, &outd);
- if (ret != Z_STREAM_END) break;
- next = strm->next_in;
- have = strm->avail_in;
- strm->next_in = Z_NULL; /* so Z_BUF_ERROR means EOF */
-
- /* check trailer */
- ret = Z_BUF_ERROR;
- if (NEXT() != (int)(outd.crc & 0xff) ||
- NEXT() != (int)((outd.crc >> 8) & 0xff) ||
- NEXT() != (int)((outd.crc >> 16) & 0xff) ||
- NEXT() != (int)((outd.crc >> 24) & 0xff)) {
- /* crc error */
- if (last != -1) {
- strm->msg = (char *)"incorrect data check";
- ret = Z_DATA_ERROR;
- }
- break;
- }
- if (NEXT() != (int)(outd.total & 0xff) ||
- NEXT() != (int)((outd.total >> 8) & 0xff) ||
- NEXT() != (int)((outd.total >> 16) & 0xff) ||
- NEXT() != (int)((outd.total >> 24) & 0xff)) {
- /* length error */
- if (last != -1) {
- strm->msg = (char *)"incorrect length check";
- ret = Z_DATA_ERROR;
- }
- break;
- }
-
- /* go back and look for another gzip stream */
- }
-
- /* clean up and return */
- return ret;
-}
-
-/* Copy file attributes, from -> to, as best we can. This is best effort, so
- no errors are reported. The mode bits, including suid, sgid, and the sticky
- bit are copied (if allowed), the owner's user id and group id are copied
- (again if allowed), and the access and modify times are copied. */
-local void copymeta(char *from, char *to)
-{
- struct stat was;
- struct utimbuf when;
-
- /* get all of from's Unix meta data, return if not a regular file */
- if (stat(from, &was) != 0 || (was.st_mode & S_IFMT) != S_IFREG)
- return;
-
- /* set to's mode bits, ignore errors */
- (void)chmod(to, was.st_mode & 07777);
-
- /* copy owner's user and group, ignore errors */
- (void)chown(to, was.st_uid, was.st_gid);
-
- /* copy access and modify times, ignore errors */
- when.actime = was.st_atime;
- when.modtime = was.st_mtime;
- (void)utime(to, &when);
-}
-
-/* Decompress the file inname to the file outnname, of if test is true, just
- decompress without writing and check the gzip trailer for integrity. If
- inname is NULL or an empty string, read from stdin. If outname is NULL or
- an empty string, write to stdout. strm is a pre-initialized inflateBack
- structure. When appropriate, copy the file attributes from inname to
- outname.
-
- gunzip() returns 1 if there is an out-of-memory error or an unexpected
- return code from gunpipe(). Otherwise it returns 0.
- */
-local int gunzip(z_stream *strm, char *inname, char *outname, int test)
-{
- int ret;
- int infile, outfile;
-
- /* open files */
- if (inname == NULL || *inname == 0) {
- inname = "-";
- infile = 0; /* stdin */
- }
- else {
- infile = open(inname, O_RDONLY, 0);
- if (infile == -1) {
- fprintf(stderr, "gun cannot open %s\n", inname);
- return 0;
- }
- }
- if (test)
- outfile = -1;
- else if (outname == NULL || *outname == 0) {
- outname = "-";
- outfile = 1; /* stdout */
- }
- else {
- outfile = open(outname, O_CREAT | O_TRUNC | O_WRONLY, 0666);
- if (outfile == -1) {
- close(infile);
- fprintf(stderr, "gun cannot create %s\n", outname);
- return 0;
- }
- }
- errno = 0;
-
- /* decompress */
- ret = gunpipe(strm, infile, outfile);
- if (outfile > 2) close(outfile);
- if (infile > 2) close(infile);
-
- /* interpret result */
- switch (ret) {
- case Z_OK:
- case Z_ERRNO:
- if (infile > 2 && outfile > 2) {
- copymeta(inname, outname); /* copy attributes */
- unlink(inname);
- }
- if (ret == Z_ERRNO)
- fprintf(stderr, "gun warning: trailing garbage ignored in %s\n",
- inname);
- break;
- case Z_DATA_ERROR:
- if (outfile > 2) unlink(outname);
- fprintf(stderr, "gun data error on %s: %s\n", inname, strm->msg);
- break;
- case Z_MEM_ERROR:
- if (outfile > 2) unlink(outname);
- fprintf(stderr, "gun out of memory error--aborting\n");
- return 1;
- case Z_BUF_ERROR:
- if (outfile > 2) unlink(outname);
- if (strm->next_in != Z_NULL) {
- fprintf(stderr, "gun write error on %s: %s\n",
- outname, strerror(errno));
- }
- else if (errno) {
- fprintf(stderr, "gun read error on %s: %s\n",
- inname, strerror(errno));
- }
- else {
- fprintf(stderr, "gun unexpected end of file on %s\n",
- inname);
- }
- break;
- default:
- if (outfile > 2) unlink(outname);
- fprintf(stderr, "gun internal error--aborting\n");
- return 1;
- }
- return 0;
-}
-
-/* Process the gun command line arguments. See the command syntax near the
- beginning of this source file. */
-int main(int argc, char **argv)
-{
- int ret, len, test;
- char *outname;
- unsigned char *window;
- z_stream strm;
-
- /* initialize inflateBack state for repeated use */
- window = match; /* reuse LZW match buffer */
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- ret = inflateBackInit(&strm, 15, window);
- if (ret != Z_OK) {
- fprintf(stderr, "gun out of memory error--aborting\n");
- return 1;
- }
-
- /* decompress each file to the same name with the suffix removed */
- argc--;
- argv++;
- test = 0;
- if (argc && strcmp(*argv, "-h") == 0) {
- fprintf(stderr, "gun 1.6 (17 Jan 2010)\n");
- fprintf(stderr, "Copyright (C) 2003-2010 Mark Adler\n");
- fprintf(stderr, "usage: gun [-t] [file1.gz [file2.Z ...]]\n");
- return 0;
- }
- if (argc && strcmp(*argv, "-t") == 0) {
- test = 1;
- argc--;
- argv++;
- }
- if (argc)
- do {
- if (test)
- outname = NULL;
- else {
- len = (int)strlen(*argv);
- if (strcmp(*argv + len - 3, ".gz") == 0 ||
- strcmp(*argv + len - 3, "-gz") == 0)
- len -= 3;
- else if (strcmp(*argv + len - 2, ".z") == 0 ||
- strcmp(*argv + len - 2, "-z") == 0 ||
- strcmp(*argv + len - 2, "_z") == 0 ||
- strcmp(*argv + len - 2, ".Z") == 0)
- len -= 2;
- else {
- fprintf(stderr, "gun error: no gz type on %s--skipping\n",
- *argv);
- continue;
- }
- outname = malloc(len + 1);
- if (outname == NULL) {
- fprintf(stderr, "gun out of memory error--aborting\n");
- ret = 1;
- break;
- }
- memcpy(outname, *argv, len);
- outname[len] = 0;
- }
- ret = gunzip(&strm, *argv, outname, test);
- if (outname != NULL) free(outname);
- if (ret) break;
- } while (argv++, --argc);
- else
- ret = gunzip(&strm, NULL, NULL, test);
-
- /* clean up */
- inflateBackEnd(&strm);
- return ret;
-}
+++ /dev/null
-/* gzappend -- command to append to a gzip file
-
- Copyright (C) 2003, 2012 Mark Adler, all rights reserved
- version 1.2, 11 Oct 2012
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the author be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- Mark Adler madler@alumni.caltech.edu
- */
-
-/*
- * Change history:
- *
- * 1.0 19 Oct 2003 - First version
- * 1.1 4 Nov 2003 - Expand and clarify some comments and notes
- * - Add version and copyright to help
- * - Send help to stdout instead of stderr
- * - Add some preemptive typecasts
- * - Add L to constants in lseek() calls
- * - Remove some debugging information in error messages
- * - Use new data_type definition for zlib 1.2.1
- * - Simplfy and unify file operations
- * - Finish off gzip file in gztack()
- * - Use deflatePrime() instead of adding empty blocks
- * - Keep gzip file clean on appended file read errors
- * - Use in-place rotate instead of auxiliary buffer
- * (Why you ask? Because it was fun to write!)
- * 1.2 11 Oct 2012 - Fix for proper z_const usage
- * - Check for input buffer malloc failure
- */
-
-/*
- gzappend takes a gzip file and appends to it, compressing files from the
- command line or data from stdin. The gzip file is written to directly, to
- avoid copying that file, in case it's large. Note that this results in the
- unfriendly behavior that if gzappend fails, the gzip file is corrupted.
-
- This program was written to illustrate the use of the new Z_BLOCK option of
- zlib 1.2.x's inflate() function. This option returns from inflate() at each
- block boundary to facilitate locating and modifying the last block bit at
- the start of the final deflate block. Also whether using Z_BLOCK or not,
- another required feature of zlib 1.2.x is that inflate() now provides the
- number of unusued bits in the last input byte used. gzappend will not work
- with versions of zlib earlier than 1.2.1.
-
- gzappend first decompresses the gzip file internally, discarding all but
- the last 32K of uncompressed data, and noting the location of the last block
- bit and the number of unused bits in the last byte of the compressed data.
- The gzip trailer containing the CRC-32 and length of the uncompressed data
- is verified. This trailer will be later overwritten.
-
- Then the last block bit is cleared by seeking back in the file and rewriting
- the byte that contains it. Seeking forward, the last byte of the compressed
- data is saved along with the number of unused bits to initialize deflate.
-
- A deflate process is initialized, using the last 32K of the uncompressed
- data from the gzip file to initialize the dictionary. If the total
- uncompressed data was less than 32K, then all of it is used to initialize
- the dictionary. The deflate output bit buffer is also initialized with the
- last bits from the original deflate stream. From here on, the data to
- append is simply compressed using deflate, and written to the gzip file.
- When that is complete, the new CRC-32 and uncompressed length are written
- as the trailer of the gzip file.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include "zlib.h"
-
-#define local static
-#define LGCHUNK 14
-#define CHUNK (1U << LGCHUNK)
-#define DSIZE 32768U
-
-/* print an error message and terminate with extreme prejudice */
-local void bye(char *msg1, char *msg2)
-{
- fprintf(stderr, "gzappend error: %s%s\n", msg1, msg2);
- exit(1);
-}
-
-/* return the greatest common divisor of a and b using Euclid's algorithm,
- modified to be fast when one argument much greater than the other, and
- coded to avoid unnecessary swapping */
-local unsigned gcd(unsigned a, unsigned b)
-{
- unsigned c;
-
- while (a && b)
- if (a > b) {
- c = b;
- while (a - c >= c)
- c <<= 1;
- a -= c;
- }
- else {
- c = a;
- while (b - c >= c)
- c <<= 1;
- b -= c;
- }
- return a + b;
-}
-
-/* rotate list[0..len-1] left by rot positions, in place */
-local void rotate(unsigned char *list, unsigned len, unsigned rot)
-{
- unsigned char tmp;
- unsigned cycles;
- unsigned char *start, *last, *to, *from;
-
- /* normalize rot and handle degenerate cases */
- if (len < 2) return;
- if (rot >= len) rot %= len;
- if (rot == 0) return;
-
- /* pointer to last entry in list */
- last = list + (len - 1);
-
- /* do simple left shift by one */
- if (rot == 1) {
- tmp = *list;
- memcpy(list, list + 1, len - 1);
- *last = tmp;
- return;
- }
-
- /* do simple right shift by one */
- if (rot == len - 1) {
- tmp = *last;
- memmove(list + 1, list, len - 1);
- *list = tmp;
- return;
- }
-
- /* otherwise do rotate as a set of cycles in place */
- cycles = gcd(len, rot); /* number of cycles */
- do {
- start = from = list + cycles; /* start index is arbitrary */
- tmp = *from; /* save entry to be overwritten */
- for (;;) {
- to = from; /* next step in cycle */
- from += rot; /* go right rot positions */
- if (from > last) from -= len; /* (pointer better not wrap) */
- if (from == start) break; /* all but one shifted */
- *to = *from; /* shift left */
- }
- *to = tmp; /* complete the circle */
- } while (--cycles);
-}
-
-/* structure for gzip file read operations */
-typedef struct {
- int fd; /* file descriptor */
- int size; /* 1 << size is bytes in buf */
- unsigned left; /* bytes available at next */
- unsigned char *buf; /* buffer */
- z_const unsigned char *next; /* next byte in buffer */
- char *name; /* file name for error messages */
-} file;
-
-/* reload buffer */
-local int readin(file *in)
-{
- int len;
-
- len = read(in->fd, in->buf, 1 << in->size);
- if (len == -1) bye("error reading ", in->name);
- in->left = (unsigned)len;
- in->next = in->buf;
- return len;
-}
-
-/* read from file in, exit if end-of-file */
-local int readmore(file *in)
-{
- if (readin(in) == 0) bye("unexpected end of ", in->name);
- return 0;
-}
-
-#define read1(in) (in->left == 0 ? readmore(in) : 0, \
- in->left--, *(in->next)++)
-
-/* skip over n bytes of in */
-local void skip(file *in, unsigned n)
-{
- unsigned bypass;
-
- if (n > in->left) {
- n -= in->left;
- bypass = n & ~((1U << in->size) - 1);
- if (bypass) {
- if (lseek(in->fd, (off_t)bypass, SEEK_CUR) == -1)
- bye("seeking ", in->name);
- n -= bypass;
- }
- readmore(in);
- if (n > in->left)
- bye("unexpected end of ", in->name);
- }
- in->left -= n;
- in->next += n;
-}
-
-/* read a four-byte unsigned integer, little-endian, from in */
-unsigned long read4(file *in)
-{
- unsigned long val;
-
- val = read1(in);
- val += (unsigned)read1(in) << 8;
- val += (unsigned long)read1(in) << 16;
- val += (unsigned long)read1(in) << 24;
- return val;
-}
-
-/* skip over gzip header */
-local void gzheader(file *in)
-{
- int flags;
- unsigned n;
-
- if (read1(in) != 31 || read1(in) != 139) bye(in->name, " not a gzip file");
- if (read1(in) != 8) bye("unknown compression method in", in->name);
- flags = read1(in);
- if (flags & 0xe0) bye("unknown header flags set in", in->name);
- skip(in, 6);
- if (flags & 4) {
- n = read1(in);
- n += (unsigned)(read1(in)) << 8;
- skip(in, n);
- }
- if (flags & 8) while (read1(in) != 0) ;
- if (flags & 16) while (read1(in) != 0) ;
- if (flags & 2) skip(in, 2);
-}
-
-/* decompress gzip file "name", return strm with a deflate stream ready to
- continue compression of the data in the gzip file, and return a file
- descriptor pointing to where to write the compressed data -- the deflate
- stream is initialized to compress using level "level" */
-local int gzscan(char *name, z_stream *strm, int level)
-{
- int ret, lastbit, left, full;
- unsigned have;
- unsigned long crc, tot;
- unsigned char *window;
- off_t lastoff, end;
- file gz;
-
- /* open gzip file */
- gz.name = name;
- gz.fd = open(name, O_RDWR, 0);
- if (gz.fd == -1) bye("cannot open ", name);
- gz.buf = malloc(CHUNK);
- if (gz.buf == NULL) bye("out of memory", "");
- gz.size = LGCHUNK;
- gz.left = 0;
-
- /* skip gzip header */
- gzheader(&gz);
-
- /* prepare to decompress */
- window = malloc(DSIZE);
- if (window == NULL) bye("out of memory", "");
- strm->zalloc = Z_NULL;
- strm->zfree = Z_NULL;
- strm->opaque = Z_NULL;
- ret = inflateInit2(strm, -15);
- if (ret != Z_OK) bye("out of memory", " or library mismatch");
-
- /* decompress the deflate stream, saving append information */
- lastbit = 0;
- lastoff = lseek(gz.fd, 0L, SEEK_CUR) - gz.left;
- left = 0;
- strm->avail_in = gz.left;
- strm->next_in = gz.next;
- crc = crc32(0L, Z_NULL, 0);
- have = full = 0;
- do {
- /* if needed, get more input */
- if (strm->avail_in == 0) {
- readmore(&gz);
- strm->avail_in = gz.left;
- strm->next_in = gz.next;
- }
-
- /* set up output to next available section of sliding window */
- strm->avail_out = DSIZE - have;
- strm->next_out = window + have;
-
- /* inflate and check for errors */
- ret = inflate(strm, Z_BLOCK);
- if (ret == Z_STREAM_ERROR) bye("internal stream error!", "");
- if (ret == Z_MEM_ERROR) bye("out of memory", "");
- if (ret == Z_DATA_ERROR)
- bye("invalid compressed data--format violated in", name);
-
- /* update crc and sliding window pointer */
- crc = crc32(crc, window + have, DSIZE - have - strm->avail_out);
- if (strm->avail_out)
- have = DSIZE - strm->avail_out;
- else {
- have = 0;
- full = 1;
- }
-
- /* process end of block */
- if (strm->data_type & 128) {
- if (strm->data_type & 64)
- left = strm->data_type & 0x1f;
- else {
- lastbit = strm->data_type & 0x1f;
- lastoff = lseek(gz.fd, 0L, SEEK_CUR) - strm->avail_in;
- }
- }
- } while (ret != Z_STREAM_END);
- inflateEnd(strm);
- gz.left = strm->avail_in;
- gz.next = strm->next_in;
-
- /* save the location of the end of the compressed data */
- end = lseek(gz.fd, 0L, SEEK_CUR) - gz.left;
-
- /* check gzip trailer and save total for deflate */
- if (crc != read4(&gz))
- bye("invalid compressed data--crc mismatch in ", name);
- tot = strm->total_out;
- if ((tot & 0xffffffffUL) != read4(&gz))
- bye("invalid compressed data--length mismatch in", name);
-
- /* if not at end of file, warn */
- if (gz.left || readin(&gz))
- fprintf(stderr,
- "gzappend warning: junk at end of gzip file overwritten\n");
-
- /* clear last block bit */
- lseek(gz.fd, lastoff - (lastbit != 0), SEEK_SET);
- if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name);
- *gz.buf = (unsigned char)(*gz.buf ^ (1 << ((8 - lastbit) & 7)));
- lseek(gz.fd, -1L, SEEK_CUR);
- if (write(gz.fd, gz.buf, 1) != 1) bye("writing after seek to ", name);
-
- /* if window wrapped, build dictionary from window by rotating */
- if (full) {
- rotate(window, DSIZE, have);
- have = DSIZE;
- }
-
- /* set up deflate stream with window, crc, total_in, and leftover bits */
- ret = deflateInit2(strm, level, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
- if (ret != Z_OK) bye("out of memory", "");
- deflateSetDictionary(strm, window, have);
- strm->adler = crc;
- strm->total_in = tot;
- if (left) {
- lseek(gz.fd, --end, SEEK_SET);
- if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name);
- deflatePrime(strm, 8 - left, *gz.buf);
- }
- lseek(gz.fd, end, SEEK_SET);
-
- /* clean up and return */
- free(window);
- free(gz.buf);
- return gz.fd;
-}
-
-/* append file "name" to gzip file gd using deflate stream strm -- if last
- is true, then finish off the deflate stream at the end */
-local void gztack(char *name, int gd, z_stream *strm, int last)
-{
- int fd, len, ret;
- unsigned left;
- unsigned char *in, *out;
-
- /* open file to compress and append */
- fd = 0;
- if (name != NULL) {
- fd = open(name, O_RDONLY, 0);
- if (fd == -1)
- fprintf(stderr, "gzappend warning: %s not found, skipping ...\n",
- name);
- }
-
- /* allocate buffers */
- in = malloc(CHUNK);
- out = malloc(CHUNK);
- if (in == NULL || out == NULL) bye("out of memory", "");
-
- /* compress input file and append to gzip file */
- do {
- /* get more input */
- len = read(fd, in, CHUNK);
- if (len == -1) {
- fprintf(stderr,
- "gzappend warning: error reading %s, skipping rest ...\n",
- name);
- len = 0;
- }
- strm->avail_in = (unsigned)len;
- strm->next_in = in;
- if (len) strm->adler = crc32(strm->adler, in, (unsigned)len);
-
- /* compress and write all available output */
- do {
- strm->avail_out = CHUNK;
- strm->next_out = out;
- ret = deflate(strm, last && len == 0 ? Z_FINISH : Z_NO_FLUSH);
- left = CHUNK - strm->avail_out;
- while (left) {
- len = write(gd, out + CHUNK - strm->avail_out - left, left);
- if (len == -1) bye("writing gzip file", "");
- left -= (unsigned)len;
- }
- } while (strm->avail_out == 0 && ret != Z_STREAM_END);
- } while (len != 0);
-
- /* write trailer after last entry */
- if (last) {
- deflateEnd(strm);
- out[0] = (unsigned char)(strm->adler);
- out[1] = (unsigned char)(strm->adler >> 8);
- out[2] = (unsigned char)(strm->adler >> 16);
- out[3] = (unsigned char)(strm->adler >> 24);
- out[4] = (unsigned char)(strm->total_in);
- out[5] = (unsigned char)(strm->total_in >> 8);
- out[6] = (unsigned char)(strm->total_in >> 16);
- out[7] = (unsigned char)(strm->total_in >> 24);
- len = 8;
- do {
- ret = write(gd, out + 8 - len, len);
- if (ret == -1) bye("writing gzip file", "");
- len -= ret;
- } while (len);
- close(gd);
- }
-
- /* clean up and return */
- free(out);
- free(in);
- if (fd > 0) close(fd);
-}
-
-/* process the compression level option if present, scan the gzip file, and
- append the specified files, or append the data from stdin if no other file
- names are provided on the command line -- the gzip file must be writable
- and seekable */
-int main(int argc, char **argv)
-{
- int gd, level;
- z_stream strm;
-
- /* ignore command name */
- argc--; argv++;
-
- /* provide usage if no arguments */
- if (*argv == NULL) {
- printf(
- "gzappend 1.2 (11 Oct 2012) Copyright (C) 2003, 2012 Mark Adler\n"
- );
- printf(
- "usage: gzappend [-level] file.gz [ addthis [ andthis ... ]]\n");
- return 0;
- }
-
- /* set compression level */
- level = Z_DEFAULT_COMPRESSION;
- if (argv[0][0] == '-') {
- if (argv[0][1] < '0' || argv[0][1] > '9' || argv[0][2] != 0)
- bye("invalid compression level", "");
- level = argv[0][1] - '0';
- if (*++argv == NULL) bye("no gzip file name after options", "");
- }
-
- /* prepare to append to gzip file */
- gd = gzscan(*argv++, &strm, level);
-
- /* append files on command line, or from stdin if none */
- if (*argv == NULL)
- gztack(NULL, gd, &strm, 1);
- else
- do {
- gztack(*argv, gd, &strm, argv[1] == NULL);
- } while (*++argv != NULL);
- return 0;
-}
+++ /dev/null
-/* gzjoin -- command to join gzip files into one gzip file
-
- Copyright (C) 2004, 2005, 2012 Mark Adler, all rights reserved
- version 1.2, 14 Aug 2012
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the author be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- Mark Adler madler@alumni.caltech.edu
- */
-
-/*
- * Change history:
- *
- * 1.0 11 Dec 2004 - First version
- * 1.1 12 Jun 2005 - Changed ssize_t to long for portability
- * 1.2 14 Aug 2012 - Clean up for z_const usage
- */
-
-/*
- gzjoin takes one or more gzip files on the command line and writes out a
- single gzip file that will uncompress to the concatenation of the
- uncompressed data from the individual gzip files. gzjoin does this without
- having to recompress any of the data and without having to calculate a new
- crc32 for the concatenated uncompressed data. gzjoin does however have to
- decompress all of the input data in order to find the bits in the compressed
- data that need to be modified to concatenate the streams.
-
- gzjoin does not do an integrity check on the input gzip files other than
- checking the gzip header and decompressing the compressed data. They are
- otherwise assumed to be complete and correct.
-
- Each joint between gzip files removes at least 18 bytes of previous trailer
- and subsequent header, and inserts an average of about three bytes to the
- compressed data in order to connect the streams. The output gzip file
- has a minimal ten-byte gzip header with no file name or modification time.
-
- This program was written to illustrate the use of the Z_BLOCK option of
- inflate() and the crc32_combine() function. gzjoin will not compile with
- versions of zlib earlier than 1.2.3.
- */
-
-#include <stdio.h> /* fputs(), fprintf(), fwrite(), putc() */
-#include <stdlib.h> /* exit(), malloc(), free() */
-#include <fcntl.h> /* open() */
-#include <unistd.h> /* close(), read(), lseek() */
-#include "zlib.h"
- /* crc32(), crc32_combine(), inflateInit2(), inflate(), inflateEnd() */
-
-#define local static
-
-/* exit with an error (return a value to allow use in an expression) */
-local int bail(char *why1, char *why2)
-{
- fprintf(stderr, "gzjoin error: %s%s, output incomplete\n", why1, why2);
- exit(1);
- return 0;
-}
-
-/* -- simple buffered file input with access to the buffer -- */
-
-#define CHUNK 32768 /* must be a power of two and fit in unsigned */
-
-/* bin buffered input file type */
-typedef struct {
- char *name; /* name of file for error messages */
- int fd; /* file descriptor */
- unsigned left; /* bytes remaining at next */
- unsigned char *next; /* next byte to read */
- unsigned char *buf; /* allocated buffer of length CHUNK */
-} bin;
-
-/* close a buffered file and free allocated memory */
-local void bclose(bin *in)
-{
- if (in != NULL) {
- if (in->fd != -1)
- close(in->fd);
- if (in->buf != NULL)
- free(in->buf);
- free(in);
- }
-}
-
-/* open a buffered file for input, return a pointer to type bin, or NULL on
- failure */
-local bin *bopen(char *name)
-{
- bin *in;
-
- in = malloc(sizeof(bin));
- if (in == NULL)
- return NULL;
- in->buf = malloc(CHUNK);
- in->fd = open(name, O_RDONLY, 0);
- if (in->buf == NULL || in->fd == -1) {
- bclose(in);
- return NULL;
- }
- in->left = 0;
- in->next = in->buf;
- in->name = name;
- return in;
-}
-
-/* load buffer from file, return -1 on read error, 0 or 1 on success, with
- 1 indicating that end-of-file was reached */
-local int bload(bin *in)
-{
- long len;
-
- if (in == NULL)
- return -1;
- if (in->left != 0)
- return 0;
- in->next = in->buf;
- do {
- len = (long)read(in->fd, in->buf + in->left, CHUNK - in->left);
- if (len < 0)
- return -1;
- in->left += (unsigned)len;
- } while (len != 0 && in->left < CHUNK);
- return len == 0 ? 1 : 0;
-}
-
-/* get a byte from the file, bail if end of file */
-#define bget(in) (in->left ? 0 : bload(in), \
- in->left ? (in->left--, *(in->next)++) : \
- bail("unexpected end of file on ", in->name))
-
-/* get a four-byte little-endian unsigned integer from file */
-local unsigned long bget4(bin *in)
-{
- unsigned long val;
-
- val = bget(in);
- val += (unsigned long)(bget(in)) << 8;
- val += (unsigned long)(bget(in)) << 16;
- val += (unsigned long)(bget(in)) << 24;
- return val;
-}
-
-/* skip bytes in file */
-local void bskip(bin *in, unsigned skip)
-{
- /* check pointer */
- if (in == NULL)
- return;
-
- /* easy case -- skip bytes in buffer */
- if (skip <= in->left) {
- in->left -= skip;
- in->next += skip;
- return;
- }
-
- /* skip what's in buffer, discard buffer contents */
- skip -= in->left;
- in->left = 0;
-
- /* seek past multiples of CHUNK bytes */
- if (skip > CHUNK) {
- unsigned left;
-
- left = skip & (CHUNK - 1);
- if (left == 0) {
- /* exact number of chunks: seek all the way minus one byte to check
- for end-of-file with a read */
- lseek(in->fd, skip - 1, SEEK_CUR);
- if (read(in->fd, in->buf, 1) != 1)
- bail("unexpected end of file on ", in->name);
- return;
- }
-
- /* skip the integral chunks, update skip with remainder */
- lseek(in->fd, skip - left, SEEK_CUR);
- skip = left;
- }
-
- /* read more input and skip remainder */
- bload(in);
- if (skip > in->left)
- bail("unexpected end of file on ", in->name);
- in->left -= skip;
- in->next += skip;
-}
-
-/* -- end of buffered input functions -- */
-
-/* skip the gzip header from file in */
-local void gzhead(bin *in)
-{
- int flags;
-
- /* verify gzip magic header and compression method */
- if (bget(in) != 0x1f || bget(in) != 0x8b || bget(in) != 8)
- bail(in->name, " is not a valid gzip file");
-
- /* get and verify flags */
- flags = bget(in);
- if ((flags & 0xe0) != 0)
- bail("unknown reserved bits set in ", in->name);
-
- /* skip modification time, extra flags, and os */
- bskip(in, 6);
-
- /* skip extra field if present */
- if (flags & 4) {
- unsigned len;
-
- len = bget(in);
- len += (unsigned)(bget(in)) << 8;
- bskip(in, len);
- }
-
- /* skip file name if present */
- if (flags & 8)
- while (bget(in) != 0)
- ;
-
- /* skip comment if present */
- if (flags & 16)
- while (bget(in) != 0)
- ;
-
- /* skip header crc if present */
- if (flags & 2)
- bskip(in, 2);
-}
-
-/* write a four-byte little-endian unsigned integer to out */
-local void put4(unsigned long val, FILE *out)
-{
- putc(val & 0xff, out);
- putc((val >> 8) & 0xff, out);
- putc((val >> 16) & 0xff, out);
- putc((val >> 24) & 0xff, out);
-}
-
-/* Load up zlib stream from buffered input, bail if end of file */
-local void zpull(z_streamp strm, bin *in)
-{
- if (in->left == 0)
- bload(in);
- if (in->left == 0)
- bail("unexpected end of file on ", in->name);
- strm->avail_in = in->left;
- strm->next_in = in->next;
-}
-
-/* Write header for gzip file to out and initialize trailer. */
-local void gzinit(unsigned long *crc, unsigned long *tot, FILE *out)
-{
- fwrite("\x1f\x8b\x08\0\0\0\0\0\0\xff", 1, 10, out);
- *crc = crc32(0L, Z_NULL, 0);
- *tot = 0;
-}
-
-/* Copy the compressed data from name, zeroing the last block bit of the last
- block if clr is true, and adding empty blocks as needed to get to a byte
- boundary. If clr is false, then the last block becomes the last block of
- the output, and the gzip trailer is written. crc and tot maintains the
- crc and length (modulo 2^32) of the output for the trailer. The resulting
- gzip file is written to out. gzinit() must be called before the first call
- of gzcopy() to write the gzip header and to initialize crc and tot. */
-local void gzcopy(char *name, int clr, unsigned long *crc, unsigned long *tot,
- FILE *out)
-{
- int ret; /* return value from zlib functions */
- int pos; /* where the "last block" bit is in byte */
- int last; /* true if processing the last block */
- bin *in; /* buffered input file */
- unsigned char *start; /* start of compressed data in buffer */
- unsigned char *junk; /* buffer for uncompressed data -- discarded */
- z_off_t len; /* length of uncompressed data (support > 4 GB) */
- z_stream strm; /* zlib inflate stream */
-
- /* open gzip file and skip header */
- in = bopen(name);
- if (in == NULL)
- bail("could not open ", name);
- gzhead(in);
-
- /* allocate buffer for uncompressed data and initialize raw inflate
- stream */
- junk = malloc(CHUNK);
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- strm.avail_in = 0;
- strm.next_in = Z_NULL;
- ret = inflateInit2(&strm, -15);
- if (junk == NULL || ret != Z_OK)
- bail("out of memory", "");
-
- /* inflate and copy compressed data, clear last-block bit if requested */
- len = 0;
- zpull(&strm, in);
- start = in->next;
- last = start[0] & 1;
- if (last && clr)
- start[0] &= ~1;
- strm.avail_out = 0;
- for (;;) {
- /* if input used and output done, write used input and get more */
- if (strm.avail_in == 0 && strm.avail_out != 0) {
- fwrite(start, 1, strm.next_in - start, out);
- start = in->buf;
- in->left = 0;
- zpull(&strm, in);
- }
-
- /* decompress -- return early when end-of-block reached */
- strm.avail_out = CHUNK;
- strm.next_out = junk;
- ret = inflate(&strm, Z_BLOCK);
- switch (ret) {
- case Z_MEM_ERROR:
- bail("out of memory", "");
- case Z_DATA_ERROR:
- bail("invalid compressed data in ", in->name);
- }
-
- /* update length of uncompressed data */
- len += CHUNK - strm.avail_out;
-
- /* check for block boundary (only get this when block copied out) */
- if (strm.data_type & 128) {
- /* if that was the last block, then done */
- if (last)
- break;
-
- /* number of unused bits in last byte */
- pos = strm.data_type & 7;
-
- /* find the next last-block bit */
- if (pos != 0) {
- /* next last-block bit is in last used byte */
- pos = 0x100 >> pos;
- last = strm.next_in[-1] & pos;
- if (last && clr)
- in->buf[strm.next_in - in->buf - 1] &= ~pos;
- }
- else {
- /* next last-block bit is in next unused byte */
- if (strm.avail_in == 0) {
- /* don't have that byte yet -- get it */
- fwrite(start, 1, strm.next_in - start, out);
- start = in->buf;
- in->left = 0;
- zpull(&strm, in);
- }
- last = strm.next_in[0] & 1;
- if (last && clr)
- in->buf[strm.next_in - in->buf] &= ~1;
- }
- }
- }
-
- /* update buffer with unused input */
- in->left = strm.avail_in;
- in->next = in->buf + (strm.next_in - in->buf);
-
- /* copy used input, write empty blocks to get to byte boundary */
- pos = strm.data_type & 7;
- fwrite(start, 1, in->next - start - 1, out);
- last = in->next[-1];
- if (pos == 0 || !clr)
- /* already at byte boundary, or last file: write last byte */
- putc(last, out);
- else {
- /* append empty blocks to last byte */
- last &= ((0x100 >> pos) - 1); /* assure unused bits are zero */
- if (pos & 1) {
- /* odd -- append an empty stored block */
- putc(last, out);
- if (pos == 1)
- putc(0, out); /* two more bits in block header */
- fwrite("\0\0\xff\xff", 1, 4, out);
- }
- else {
- /* even -- append 1, 2, or 3 empty fixed blocks */
- switch (pos) {
- case 6:
- putc(last | 8, out);
- last = 0;
- case 4:
- putc(last | 0x20, out);
- last = 0;
- case 2:
- putc(last | 0x80, out);
- putc(0, out);
- }
- }
- }
-
- /* update crc and tot */
- *crc = crc32_combine(*crc, bget4(in), len);
- *tot += (unsigned long)len;
-
- /* clean up */
- inflateEnd(&strm);
- free(junk);
- bclose(in);
-
- /* write trailer if this is the last gzip file */
- if (!clr) {
- put4(*crc, out);
- put4(*tot, out);
- }
-}
-
-/* join the gzip files on the command line, write result to stdout */
-int main(int argc, char **argv)
-{
- unsigned long crc, tot; /* running crc and total uncompressed length */
-
- /* skip command name */
- argc--;
- argv++;
-
- /* show usage if no arguments */
- if (argc == 0) {
- fputs("gzjoin usage: gzjoin f1.gz [f2.gz [f3.gz ...]] > fjoin.gz\n",
- stderr);
- return 0;
- }
-
- /* join gzip files on command line and write to stdout */
- gzinit(&crc, &tot, stdout);
- while (argc--)
- gzcopy(*argv++, argc, &crc, &tot, stdout);
-
- /* done */
- return 0;
-}
+++ /dev/null
-/*
- * gzlog.c
- * Copyright (C) 2004, 2008, 2012 Mark Adler, all rights reserved
- * For conditions of distribution and use, see copyright notice in gzlog.h
- * version 2.2, 14 Aug 2012
- */
-
-/*
- gzlog provides a mechanism for frequently appending short strings to a gzip
- file that is efficient both in execution time and compression ratio. The
- strategy is to write the short strings in an uncompressed form to the end of
- the gzip file, only compressing when the amount of uncompressed data has
- reached a given threshold.
-
- gzlog also provides protection against interruptions in the process due to
- system crashes. The status of the operation is recorded in an extra field
- in the gzip file, and is only updated once the gzip file is brought to a
- valid state. The last data to be appended or compressed is saved in an
- auxiliary file, so that if the operation is interrupted, it can be completed
- the next time an append operation is attempted.
-
- gzlog maintains another auxiliary file with the last 32K of data from the
- compressed portion, which is preloaded for the compression of the subsequent
- data. This minimizes the impact to the compression ratio of appending.
- */
-
-/*
- Operations Concept:
-
- Files (log name "foo"):
- foo.gz -- gzip file with the complete log
- foo.add -- last message to append or last data to compress
- foo.dict -- dictionary of the last 32K of data for next compression
- foo.temp -- temporary dictionary file for compression after this one
- foo.lock -- lock file for reading and writing the other files
- foo.repairs -- log file for log file recovery operations (not compressed)
-
- gzip file structure:
- - fixed-length (no file name) header with extra field (see below)
- - compressed data ending initially with empty stored block
- - uncompressed data filling out originally empty stored block and
- subsequent stored blocks as needed (16K max each)
- - gzip trailer
- - no junk at end (no other gzip streams)
-
- When appending data, the information in the first three items above plus the
- foo.add file are sufficient to recover an interrupted append operation. The
- extra field has the necessary information to restore the start of the last
- stored block and determine where to append the data in the foo.add file, as
- well as the crc and length of the gzip data before the append operation.
-
- The foo.add file is created before the gzip file is marked for append, and
- deleted after the gzip file is marked as complete. So if the append
- operation is interrupted, the data to add will still be there. If due to
- some external force, the foo.add file gets deleted between when the append
- operation was interrupted and when recovery is attempted, the gzip file will
- still be restored, but without the appended data.
-
- When compressing data, the information in the first two items above plus the
- foo.add file are sufficient to recover an interrupted compress operation.
- The extra field has the necessary information to find the end of the
- compressed data, and contains both the crc and length of just the compressed
- data and of the complete set of data including the contents of the foo.add
- file.
-
- Again, the foo.add file is maintained during the compress operation in case
- of an interruption. If in the unlikely event the foo.add file with the data
- to be compressed is missing due to some external force, a gzip file with
- just the previous compressed data will be reconstructed. In this case, all
- of the data that was to be compressed is lost (approximately one megabyte).
- This will not occur if all that happened was an interruption of the compress
- operation.
-
- The third state that is marked is the replacement of the old dictionary with
- the new dictionary after a compress operation. Once compression is
- complete, the gzip file is marked as being in the replace state. This
- completes the gzip file, so an interrupt after being so marked does not
- result in recompression. Then the dictionary file is replaced, and the gzip
- file is marked as completed. This state prevents the possibility of
- restarting compression with the wrong dictionary file.
-
- All three operations are wrapped by a lock/unlock procedure. In order to
- gain exclusive access to the log files, first a foo.lock file must be
- exclusively created. When all operations are complete, the lock is
- released by deleting the foo.lock file. If when attempting to create the
- lock file, it already exists and the modify time of the lock file is more
- than five minutes old (set by the PATIENCE define below), then the old
- lock file is considered stale and deleted, and the exclusive creation of
- the lock file is retried. To assure that there are no false assessments
- of the staleness of the lock file, the operations periodically touch the
- lock file to update the modified date.
-
- Following is the definition of the extra field with all of the information
- required to enable the above append and compress operations and their
- recovery if interrupted. Multi-byte values are stored little endian
- (consistent with the gzip format). File pointers are eight bytes long.
- The crc's and lengths for the gzip trailer are four bytes long. (Note that
- the length at the end of a gzip file is used for error checking only, and
- for large files is actually the length modulo 2^32.) The stored block
- length is two bytes long. The gzip extra field two-byte identification is
- "ap" for append. It is assumed that writing the extra field to the file is
- an "atomic" operation. That is, either all of the extra field is written
- to the file, or none of it is, if the operation is interrupted right at the
- point of updating the extra field. This is a reasonable assumption, since
- the extra field is within the first 52 bytes of the file, which is smaller
- than any expected block size for a mass storage device (usually 512 bytes or
- larger).
-
- Extra field (35 bytes):
- - Pointer to first stored block length -- this points to the two-byte length
- of the first stored block, which is followed by the two-byte, one's
- complement of that length. The stored block length is preceded by the
- three-bit header of the stored block, which is the actual start of the
- stored block in the deflate format. See the bit offset field below.
- - Pointer to the last stored block length. This is the same as above, but
- for the last stored block of the uncompressed data in the gzip file.
- Initially this is the same as the first stored block length pointer.
- When the stored block gets to 16K (see the MAX_STORE define), then a new
- stored block as added, at which point the last stored block length pointer
- is different from the first stored block length pointer. When they are
- different, the first bit of the last stored block header is eight bits, or
- one byte back from the block length.
- - Compressed data crc and length. This is the crc and length of the data
- that is in the compressed portion of the deflate stream. These are used
- only in the event that the foo.add file containing the data to compress is
- lost after a compress operation is interrupted.
- - Total data crc and length. This is the crc and length of all of the data
- stored in the gzip file, compressed and uncompressed. It is used to
- reconstruct the gzip trailer when compressing, as well as when recovering
- interrupted operations.
- - Final stored block length. This is used to quickly find where to append,
- and allows the restoration of the original final stored block state when
- an append operation is interrupted.
- - First stored block start as the number of bits back from the final stored
- block first length byte. This value is in the range of 3..10, and is
- stored as the low three bits of the final byte of the extra field after
- subtracting three (0..7). This allows the last-block bit of the stored
- block header to be updated when a new stored block is added, for the case
- when the first stored block and the last stored block are the same. (When
- they are different, the numbers of bits back is known to be eight.) This
- also allows for new compressed data to be appended to the old compressed
- data in the compress operation, overwriting the previous first stored
- block, or for the compressed data to be terminated and a valid gzip file
- reconstructed on the off chance that a compression operation was
- interrupted and the data to compress in the foo.add file was deleted.
- - The operation in process. This is the next two bits in the last byte (the
- bits under the mask 0x18). The are interpreted as 0: nothing in process,
- 1: append in process, 2: compress in process, 3: replace in process.
- - The top three bits of the last byte in the extra field are reserved and
- are currently set to zero.
-
- Main procedure:
- - Exclusively create the foo.lock file using the O_CREAT and O_EXCL modes of
- the system open() call. If the modify time of an existing lock file is
- more than PATIENCE seconds old, then the lock file is deleted and the
- exclusive create is retried.
- - Load the extra field from the foo.gz file, and see if an operation was in
- progress but not completed. If so, apply the recovery procedure below.
- - Perform the append procedure with the provided data.
- - If the uncompressed data in the foo.gz file is 1MB or more, apply the
- compress procedure.
- - Delete the foo.lock file.
-
- Append procedure:
- - Put what to append in the foo.add file so that the operation can be
- restarted if this procedure is interrupted.
- - Mark the foo.gz extra field with the append operation in progress.
- + Restore the original last-block bit and stored block length of the last
- stored block from the information in the extra field, in case a previous
- append operation was interrupted.
- - Append the provided data to the last stored block, creating new stored
- blocks as needed and updating the stored blocks last-block bits and
- lengths.
- - Update the crc and length with the new data, and write the gzip trailer.
- - Write over the extra field (with a single write operation) with the new
- pointers, lengths, and crc's, and mark the gzip file as not in process.
- Though there is still a foo.add file, it will be ignored since nothing
- is in process. If a foo.add file is leftover from a previously
- completed operation, it is truncated when writing new data to it.
- - Delete the foo.add file.
-
- Compress and replace procedures:
- - Read all of the uncompressed data in the stored blocks in foo.gz and write
- it to foo.add. Also write foo.temp with the last 32K of that data to
- provide a dictionary for the next invocation of this procedure.
- - Rewrite the extra field marking foo.gz with a compression in process.
- * If there is no data provided to compress (due to a missing foo.add file
- when recovering), reconstruct and truncate the foo.gz file to contain
- only the previous compressed data and proceed to the step after the next
- one. Otherwise ...
- - Compress the data with the dictionary in foo.dict, and write to the
- foo.gz file starting at the bit immediately following the last previously
- compressed block. If there is no foo.dict, proceed anyway with the
- compression at slightly reduced efficiency. (For the foo.dict file to be
- missing requires some external failure beyond simply the interruption of
- a compress operation.) During this process, the foo.lock file is
- periodically touched to assure that that file is not considered stale by
- another process before we're done. The deflation is terminated with a
- non-last empty static block (10 bits long), that is then located and
- written over by a last-bit-set empty stored block.
- - Append the crc and length of the data in the gzip file (previously
- calculated during the append operations).
- - Write over the extra field with the updated stored block offsets, bits
- back, crc's, and lengths, and mark foo.gz as in process for a replacement
- of the dictionary.
- @ Delete the foo.add file.
- - Replace foo.dict with foo.temp.
- - Write over the extra field, marking foo.gz as complete.
-
- Recovery procedure:
- - If not a replace recovery, read in the foo.add file, and provide that data
- to the appropriate recovery below. If there is no foo.add file, provide
- a zero data length to the recovery. In that case, the append recovery
- restores the foo.gz to the previous compressed + uncompressed data state.
- For the the compress recovery, a missing foo.add file results in foo.gz
- being restored to the previous compressed-only data state.
- - Append recovery:
- - Pick up append at + step above
- - Compress recovery:
- - Pick up compress at * step above
- - Replace recovery:
- - Pick up compress at @ step above
- - Log the repair with a date stamp in foo.repairs
- */
-
-#include <sys/types.h>
-#include <stdio.h> /* rename, fopen, fprintf, fclose */
-#include <stdlib.h> /* malloc, free */
-#include <string.h> /* strlen, strrchr, strcpy, strncpy, strcmp */
-#include <fcntl.h> /* open */
-#include <unistd.h> /* lseek, read, write, close, unlink, sleep, */
- /* ftruncate, fsync */
-#include <errno.h> /* errno */
-#include <time.h> /* time, ctime */
-#include <sys/stat.h> /* stat */
-#include <sys/time.h> /* utimes */
-#include "zlib.h" /* crc32 */
-
-#include "gzlog.h" /* header for external access */
-
-#define local static
-typedef unsigned int uint;
-typedef unsigned long ulong;
-
-/* Macro for debugging to deterministically force recovery operations */
-#ifdef DEBUG
- #include <setjmp.h> /* longjmp */
- jmp_buf gzlog_jump; /* where to go back to */
- int gzlog_bail = 0; /* which point to bail at (1..8) */
- int gzlog_count = -1; /* number of times through to wait */
-# define BAIL(n) do { if (n == gzlog_bail && gzlog_count-- == 0) \
- longjmp(gzlog_jump, gzlog_bail); } while (0)
-#else
-# define BAIL(n)
-#endif
-
-/* how old the lock file can be in seconds before considering it stale */
-#define PATIENCE 300
-
-/* maximum stored block size in Kbytes -- must be in 1..63 */
-#define MAX_STORE 16
-
-/* number of stored Kbytes to trigger compression (must be >= 32 to allow
- dictionary construction, and <= 204 * MAX_STORE, in order for >> 10 to
- discard the stored block headers contribution of five bytes each) */
-#define TRIGGER 1024
-
-/* size of a deflate dictionary (this cannot be changed) */
-#define DICT 32768U
-
-/* values for the operation (2 bits) */
-#define NO_OP 0
-#define APPEND_OP 1
-#define COMPRESS_OP 2
-#define REPLACE_OP 3
-
-/* macros to extract little-endian integers from an unsigned byte buffer */
-#define PULL2(p) ((p)[0]+((uint)((p)[1])<<8))
-#define PULL4(p) (PULL2(p)+((ulong)PULL2(p+2)<<16))
-#define PULL8(p) (PULL4(p)+((off_t)PULL4(p+4)<<32))
-
-/* macros to store integers into a byte buffer in little-endian order */
-#define PUT2(p,a) do {(p)[0]=a;(p)[1]=(a)>>8;} while(0)
-#define PUT4(p,a) do {PUT2(p,a);PUT2(p+2,a>>16);} while(0)
-#define PUT8(p,a) do {PUT4(p,a);PUT4(p+4,a>>32);} while(0)
-
-/* internal structure for log information */
-#define LOGID "\106\035\172" /* should be three non-zero characters */
-struct log {
- char id[4]; /* contains LOGID to detect inadvertent overwrites */
- int fd; /* file descriptor for .gz file, opened read/write */
- char *path; /* allocated path, e.g. "/var/log/foo" or "foo" */
- char *end; /* end of path, for appending suffices such as ".gz" */
- off_t first; /* offset of first stored block first length byte */
- int back; /* location of first block id in bits back from first */
- uint stored; /* bytes currently in last stored block */
- off_t last; /* offset of last stored block first length byte */
- ulong ccrc; /* crc of compressed data */
- ulong clen; /* length (modulo 2^32) of compressed data */
- ulong tcrc; /* crc of total data */
- ulong tlen; /* length (modulo 2^32) of total data */
- time_t lock; /* last modify time of our lock file */
-};
-
-/* gzip header for gzlog */
-local unsigned char log_gzhead[] = {
- 0x1f, 0x8b, /* magic gzip id */
- 8, /* compression method is deflate */
- 4, /* there is an extra field (no file name) */
- 0, 0, 0, 0, /* no modification time provided */
- 0, 0xff, /* no extra flags, no OS specified */
- 39, 0, 'a', 'p', 35, 0 /* extra field with "ap" subfield */
- /* 35 is EXTRA, 39 is EXTRA + 4 */
-};
-
-#define HEAD sizeof(log_gzhead) /* should be 16 */
-
-/* initial gzip extra field content (52 == HEAD + EXTRA + 1) */
-local unsigned char log_gzext[] = {
- 52, 0, 0, 0, 0, 0, 0, 0, /* offset of first stored block length */
- 52, 0, 0, 0, 0, 0, 0, 0, /* offset of last stored block length */
- 0, 0, 0, 0, 0, 0, 0, 0, /* compressed data crc and length */
- 0, 0, 0, 0, 0, 0, 0, 0, /* total data crc and length */
- 0, 0, /* final stored block data length */
- 5 /* op is NO_OP, last bit 8 bits back */
-};
-
-#define EXTRA sizeof(log_gzext) /* should be 35 */
-
-/* initial gzip data and trailer */
-local unsigned char log_gzbody[] = {
- 1, 0, 0, 0xff, 0xff, /* empty stored block (last) */
- 0, 0, 0, 0, /* crc */
- 0, 0, 0, 0 /* uncompressed length */
-};
-
-#define BODY sizeof(log_gzbody)
-
-/* Exclusively create foo.lock in order to negotiate exclusive access to the
- foo.* files. If the modify time of an existing lock file is greater than
- PATIENCE seconds in the past, then consider the lock file to have been
- abandoned, delete it, and try the exclusive create again. Save the lock
- file modify time for verification of ownership. Return 0 on success, or -1
- on failure, usually due to an access restriction or invalid path. Note that
- if stat() or unlink() fails, it may be due to another process noticing the
- abandoned lock file a smidge sooner and deleting it, so those are not
- flagged as an error. */
-local int log_lock(struct log *log)
-{
- int fd;
- struct stat st;
-
- strcpy(log->end, ".lock");
- while ((fd = open(log->path, O_CREAT | O_EXCL, 0644)) < 0) {
- if (errno != EEXIST)
- return -1;
- if (stat(log->path, &st) == 0 && time(NULL) - st.st_mtime > PATIENCE) {
- unlink(log->path);
- continue;
- }
- sleep(2); /* relinquish the CPU for two seconds while waiting */
- }
- close(fd);
- if (stat(log->path, &st) == 0)
- log->lock = st.st_mtime;
- return 0;
-}
-
-/* Update the modify time of the lock file to now, in order to prevent another
- task from thinking that the lock is stale. Save the lock file modify time
- for verification of ownership. */
-local void log_touch(struct log *log)
-{
- struct stat st;
-
- strcpy(log->end, ".lock");
- utimes(log->path, NULL);
- if (stat(log->path, &st) == 0)
- log->lock = st.st_mtime;
-}
-
-/* Check the log file modify time against what is expected. Return true if
- this is not our lock. If it is our lock, touch it to keep it. */
-local int log_check(struct log *log)
-{
- struct stat st;
-
- strcpy(log->end, ".lock");
- if (stat(log->path, &st) || st.st_mtime != log->lock)
- return 1;
- log_touch(log);
- return 0;
-}
-
-/* Unlock a previously acquired lock, but only if it's ours. */
-local void log_unlock(struct log *log)
-{
- if (log_check(log))
- return;
- strcpy(log->end, ".lock");
- unlink(log->path);
- log->lock = 0;
-}
-
-/* Check the gzip header and read in the extra field, filling in the values in
- the log structure. Return op on success or -1 if the gzip header was not as
- expected. op is the current operation in progress last written to the extra
- field. This assumes that the gzip file has already been opened, with the
- file descriptor log->fd. */
-local int log_head(struct log *log)
-{
- int op;
- unsigned char buf[HEAD + EXTRA];
-
- if (lseek(log->fd, 0, SEEK_SET) < 0 ||
- read(log->fd, buf, HEAD + EXTRA) != HEAD + EXTRA ||
- memcmp(buf, log_gzhead, HEAD)) {
- return -1;
- }
- log->first = PULL8(buf + HEAD);
- log->last = PULL8(buf + HEAD + 8);
- log->ccrc = PULL4(buf + HEAD + 16);
- log->clen = PULL4(buf + HEAD + 20);
- log->tcrc = PULL4(buf + HEAD + 24);
- log->tlen = PULL4(buf + HEAD + 28);
- log->stored = PULL2(buf + HEAD + 32);
- log->back = 3 + (buf[HEAD + 34] & 7);
- op = (buf[HEAD + 34] >> 3) & 3;
- return op;
-}
-
-/* Write over the extra field contents, marking the operation as op. Use fsync
- to assure that the device is written to, and in the requested order. This
- operation, and only this operation, is assumed to be atomic in order to
- assure that the log is recoverable in the event of an interruption at any
- point in the process. Return -1 if the write to foo.gz failed. */
-local int log_mark(struct log *log, int op)
-{
- int ret;
- unsigned char ext[EXTRA];
-
- PUT8(ext, log->first);
- PUT8(ext + 8, log->last);
- PUT4(ext + 16, log->ccrc);
- PUT4(ext + 20, log->clen);
- PUT4(ext + 24, log->tcrc);
- PUT4(ext + 28, log->tlen);
- PUT2(ext + 32, log->stored);
- ext[34] = log->back - 3 + (op << 3);
- fsync(log->fd);
- ret = lseek(log->fd, HEAD, SEEK_SET) < 0 ||
- write(log->fd, ext, EXTRA) != EXTRA ? -1 : 0;
- fsync(log->fd);
- return ret;
-}
-
-/* Rewrite the last block header bits and subsequent zero bits to get to a byte
- boundary, setting the last block bit if last is true, and then write the
- remainder of the stored block header (length and one's complement). Leave
- the file pointer after the end of the last stored block data. Return -1 if
- there is a read or write failure on the foo.gz file */
-local int log_last(struct log *log, int last)
-{
- int back, len, mask;
- unsigned char buf[6];
-
- /* determine the locations of the bytes and bits to modify */
- back = log->last == log->first ? log->back : 8;
- len = back > 8 ? 2 : 1; /* bytes back from log->last */
- mask = 0x80 >> ((back - 1) & 7); /* mask for block last-bit */
-
- /* get the byte to modify (one or two back) into buf[0] -- don't need to
- read the byte if the last-bit is eight bits back, since in that case
- the entire byte will be modified */
- buf[0] = 0;
- if (back != 8 && (lseek(log->fd, log->last - len, SEEK_SET) < 0 ||
- read(log->fd, buf, 1) != 1))
- return -1;
-
- /* change the last-bit of the last stored block as requested -- note
- that all bits above the last-bit are set to zero, per the type bits
- of a stored block being 00 and per the convention that the bits to
- bring the stream to a byte boundary are also zeros */
- buf[1] = 0;
- buf[2 - len] = (*buf & (mask - 1)) + (last ? mask : 0);
-
- /* write the modified stored block header and lengths, move the file
- pointer to after the last stored block data */
- PUT2(buf + 2, log->stored);
- PUT2(buf + 4, log->stored ^ 0xffff);
- return lseek(log->fd, log->last - len, SEEK_SET) < 0 ||
- write(log->fd, buf + 2 - len, len + 4) != len + 4 ||
- lseek(log->fd, log->stored, SEEK_CUR) < 0 ? -1 : 0;
-}
-
-/* Append len bytes from data to the locked and open log file. len may be zero
- if recovering and no .add file was found. In that case, the previous state
- of the foo.gz file is restored. The data is appended uncompressed in
- deflate stored blocks. Return -1 if there was an error reading or writing
- the foo.gz file. */
-local int log_append(struct log *log, unsigned char *data, size_t len)
-{
- uint put;
- off_t end;
- unsigned char buf[8];
-
- /* set the last block last-bit and length, in case recovering an
- interrupted append, then position the file pointer to append to the
- block */
- if (log_last(log, 1))
- return -1;
-
- /* append, adding stored blocks and updating the offset of the last stored
- block as needed, and update the total crc and length */
- while (len) {
- /* append as much as we can to the last block */
- put = (MAX_STORE << 10) - log->stored;
- if (put > len)
- put = (uint)len;
- if (put) {
- if (write(log->fd, data, put) != put)
- return -1;
- BAIL(1);
- log->tcrc = crc32(log->tcrc, data, put);
- log->tlen += put;
- log->stored += put;
- data += put;
- len -= put;
- }
-
- /* if we need to, add a new empty stored block */
- if (len) {
- /* mark current block as not last */
- if (log_last(log, 0))
- return -1;
-
- /* point to new, empty stored block */
- log->last += 4 + log->stored + 1;
- log->stored = 0;
- }
-
- /* mark last block as last, update its length */
- if (log_last(log, 1))
- return -1;
- BAIL(2);
- }
-
- /* write the new crc and length trailer, and truncate just in case (could
- be recovering from partial append with a missing foo.add file) */
- PUT4(buf, log->tcrc);
- PUT4(buf + 4, log->tlen);
- if (write(log->fd, buf, 8) != 8 ||
- (end = lseek(log->fd, 0, SEEK_CUR)) < 0 || ftruncate(log->fd, end))
- return -1;
-
- /* write the extra field, marking the log file as done, delete .add file */
- if (log_mark(log, NO_OP))
- return -1;
- strcpy(log->end, ".add");
- unlink(log->path); /* ignore error, since may not exist */
- return 0;
-}
-
-/* Replace the foo.dict file with the foo.temp file. Also delete the foo.add
- file, since the compress operation may have been interrupted before that was
- done. Returns 1 if memory could not be allocated, or -1 if reading or
- writing foo.gz fails, or if the rename fails for some reason other than
- foo.temp not existing. foo.temp not existing is a permitted error, since
- the replace operation may have been interrupted after the rename is done,
- but before foo.gz is marked as complete. */
-local int log_replace(struct log *log)
-{
- int ret;
- char *dest;
-
- /* delete foo.add file */
- strcpy(log->end, ".add");
- unlink(log->path); /* ignore error, since may not exist */
- BAIL(3);
-
- /* rename foo.name to foo.dict, replacing foo.dict if it exists */
- strcpy(log->end, ".dict");
- dest = malloc(strlen(log->path) + 1);
- if (dest == NULL)
- return -2;
- strcpy(dest, log->path);
- strcpy(log->end, ".temp");
- ret = rename(log->path, dest);
- free(dest);
- if (ret && errno != ENOENT)
- return -1;
- BAIL(4);
-
- /* mark the foo.gz file as done */
- return log_mark(log, NO_OP);
-}
-
-/* Compress the len bytes at data and append the compressed data to the
- foo.gz deflate data immediately after the previous compressed data. This
- overwrites the previous uncompressed data, which was stored in foo.add
- and is the data provided in data[0..len-1]. If this operation is
- interrupted, it picks up at the start of this routine, with the foo.add
- file read in again. If there is no data to compress (len == 0), then we
- simply terminate the foo.gz file after the previously compressed data,
- appending a final empty stored block and the gzip trailer. Return -1 if
- reading or writing the log.gz file failed, or -2 if there was a memory
- allocation failure. */
-local int log_compress(struct log *log, unsigned char *data, size_t len)
-{
- int fd;
- uint got, max;
- ssize_t dict;
- off_t end;
- z_stream strm;
- unsigned char buf[DICT];
-
- /* compress and append compressed data */
- if (len) {
- /* set up for deflate, allocating memory */
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- if (deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -15, 8,
- Z_DEFAULT_STRATEGY) != Z_OK)
- return -2;
-
- /* read in dictionary (last 32K of data that was compressed) */
- strcpy(log->end, ".dict");
- fd = open(log->path, O_RDONLY, 0);
- if (fd >= 0) {
- dict = read(fd, buf, DICT);
- close(fd);
- if (dict < 0) {
- deflateEnd(&strm);
- return -1;
- }
- if (dict)
- deflateSetDictionary(&strm, buf, (uint)dict);
- }
- log_touch(log);
-
- /* prime deflate with last bits of previous block, position write
- pointer to write those bits and overwrite what follows */
- if (lseek(log->fd, log->first - (log->back > 8 ? 2 : 1),
- SEEK_SET) < 0 ||
- read(log->fd, buf, 1) != 1 || lseek(log->fd, -1, SEEK_CUR) < 0) {
- deflateEnd(&strm);
- return -1;
- }
- deflatePrime(&strm, (8 - log->back) & 7, *buf);
-
- /* compress, finishing with a partial non-last empty static block */
- strm.next_in = data;
- max = (((uint)0 - 1) >> 1) + 1; /* in case int smaller than size_t */
- do {
- strm.avail_in = len > max ? max : (uint)len;
- len -= strm.avail_in;
- do {
- strm.avail_out = DICT;
- strm.next_out = buf;
- deflate(&strm, len ? Z_NO_FLUSH : Z_PARTIAL_FLUSH);
- got = DICT - strm.avail_out;
- if (got && write(log->fd, buf, got) != got) {
- deflateEnd(&strm);
- return -1;
- }
- log_touch(log);
- } while (strm.avail_out == 0);
- } while (len);
- deflateEnd(&strm);
- BAIL(5);
-
- /* find start of empty static block -- scanning backwards the first one
- bit is the second bit of the block, if the last byte is zero, then
- we know the byte before that has a one in the top bit, since an
- empty static block is ten bits long */
- if ((log->first = lseek(log->fd, -1, SEEK_CUR)) < 0 ||
- read(log->fd, buf, 1) != 1)
- return -1;
- log->first++;
- if (*buf) {
- log->back = 1;
- while ((*buf & ((uint)1 << (8 - log->back++))) == 0)
- ; /* guaranteed to terminate, since *buf != 0 */
- }
- else
- log->back = 10;
-
- /* update compressed crc and length */
- log->ccrc = log->tcrc;
- log->clen = log->tlen;
- }
- else {
- /* no data to compress -- fix up existing gzip stream */
- log->tcrc = log->ccrc;
- log->tlen = log->clen;
- }
-
- /* complete and truncate gzip stream */
- log->last = log->first;
- log->stored = 0;
- PUT4(buf, log->tcrc);
- PUT4(buf + 4, log->tlen);
- if (log_last(log, 1) || write(log->fd, buf, 8) != 8 ||
- (end = lseek(log->fd, 0, SEEK_CUR)) < 0 || ftruncate(log->fd, end))
- return -1;
- BAIL(6);
-
- /* mark as being in the replace operation */
- if (log_mark(log, REPLACE_OP))
- return -1;
-
- /* execute the replace operation and mark the file as done */
- return log_replace(log);
-}
-
-/* log a repair record to the .repairs file */
-local void log_log(struct log *log, int op, char *record)
-{
- time_t now;
- FILE *rec;
-
- now = time(NULL);
- strcpy(log->end, ".repairs");
- rec = fopen(log->path, "a");
- if (rec == NULL)
- return;
- fprintf(rec, "%.24s %s recovery: %s\n", ctime(&now), op == APPEND_OP ?
- "append" : (op == COMPRESS_OP ? "compress" : "replace"), record);
- fclose(rec);
- return;
-}
-
-/* Recover the interrupted operation op. First read foo.add for recovering an
- append or compress operation. Return -1 if there was an error reading or
- writing foo.gz or reading an existing foo.add, or -2 if there was a memory
- allocation failure. */
-local int log_recover(struct log *log, int op)
-{
- int fd, ret = 0;
- unsigned char *data = NULL;
- size_t len = 0;
- struct stat st;
-
- /* log recovery */
- log_log(log, op, "start");
-
- /* load foo.add file if expected and present */
- if (op == APPEND_OP || op == COMPRESS_OP) {
- strcpy(log->end, ".add");
- if (stat(log->path, &st) == 0 && st.st_size) {
- len = (size_t)(st.st_size);
- if ((off_t)len != st.st_size ||
- (data = malloc(st.st_size)) == NULL) {
- log_log(log, op, "allocation failure");
- return -2;
- }
- if ((fd = open(log->path, O_RDONLY, 0)) < 0) {
- log_log(log, op, ".add file read failure");
- return -1;
- }
- ret = (size_t)read(fd, data, len) != len;
- close(fd);
- if (ret) {
- log_log(log, op, ".add file read failure");
- return -1;
- }
- log_log(log, op, "loaded .add file");
- }
- else
- log_log(log, op, "missing .add file!");
- }
-
- /* recover the interrupted operation */
- switch (op) {
- case APPEND_OP:
- ret = log_append(log, data, len);
- break;
- case COMPRESS_OP:
- ret = log_compress(log, data, len);
- break;
- case REPLACE_OP:
- ret = log_replace(log);
- }
-
- /* log status */
- log_log(log, op, ret ? "failure" : "complete");
-
- /* clean up */
- if (data != NULL)
- free(data);
- return ret;
-}
-
-/* Close the foo.gz file (if open) and release the lock. */
-local void log_close(struct log *log)
-{
- if (log->fd >= 0)
- close(log->fd);
- log->fd = -1;
- log_unlock(log);
-}
-
-/* Open foo.gz, verify the header, and load the extra field contents, after
- first creating the foo.lock file to gain exclusive access to the foo.*
- files. If foo.gz does not exist or is empty, then write the initial header,
- extra, and body content of an empty foo.gz log file. If there is an error
- creating the lock file due to access restrictions, or an error reading or
- writing the foo.gz file, or if the foo.gz file is not a proper log file for
- this object (e.g. not a gzip file or does not contain the expected extra
- field), then return true. If there is an error, the lock is released.
- Otherwise, the lock is left in place. */
-local int log_open(struct log *log)
-{
- int op;
-
- /* release open file resource if left over -- can occur if lock lost
- between gzlog_open() and gzlog_write() */
- if (log->fd >= 0)
- close(log->fd);
- log->fd = -1;
-
- /* negotiate exclusive access */
- if (log_lock(log) < 0)
- return -1;
-
- /* open the log file, foo.gz */
- strcpy(log->end, ".gz");
- log->fd = open(log->path, O_RDWR | O_CREAT, 0644);
- if (log->fd < 0) {
- log_close(log);
- return -1;
- }
-
- /* if new, initialize foo.gz with an empty log, delete old dictionary */
- if (lseek(log->fd, 0, SEEK_END) == 0) {
- if (write(log->fd, log_gzhead, HEAD) != HEAD ||
- write(log->fd, log_gzext, EXTRA) != EXTRA ||
- write(log->fd, log_gzbody, BODY) != BODY) {
- log_close(log);
- return -1;
- }
- strcpy(log->end, ".dict");
- unlink(log->path);
- }
-
- /* verify log file and load extra field information */
- if ((op = log_head(log)) < 0) {
- log_close(log);
- return -1;
- }
-
- /* check for interrupted process and if so, recover */
- if (op != NO_OP && log_recover(log, op)) {
- log_close(log);
- return -1;
- }
-
- /* touch the lock file to prevent another process from grabbing it */
- log_touch(log);
- return 0;
-}
-
-/* See gzlog.h for the description of the external methods below */
-gzlog *gzlog_open(char *path)
-{
- size_t n;
- struct log *log;
-
- /* check arguments */
- if (path == NULL || *path == 0)
- return NULL;
-
- /* allocate and initialize log structure */
- log = malloc(sizeof(struct log));
- if (log == NULL)
- return NULL;
- strcpy(log->id, LOGID);
- log->fd = -1;
-
- /* save path and end of path for name construction */
- n = strlen(path);
- log->path = malloc(n + 9); /* allow for ".repairs" */
- if (log->path == NULL) {
- free(log);
- return NULL;
- }
- strcpy(log->path, path);
- log->end = log->path + n;
-
- /* gain exclusive access and verify log file -- may perform a
- recovery operation if needed */
- if (log_open(log)) {
- free(log->path);
- free(log);
- return NULL;
- }
-
- /* return pointer to log structure */
- return log;
-}
-
-/* gzlog_compress() return values:
- 0: all good
- -1: file i/o error (usually access issue)
- -2: memory allocation failure
- -3: invalid log pointer argument */
-int gzlog_compress(gzlog *logd)
-{
- int fd, ret;
- uint block;
- size_t len, next;
- unsigned char *data, buf[5];
- struct log *log = logd;
-
- /* check arguments */
- if (log == NULL || strcmp(log->id, LOGID))
- return -3;
-
- /* see if we lost the lock -- if so get it again and reload the extra
- field information (it probably changed), recover last operation if
- necessary */
- if (log_check(log) && log_open(log))
- return -1;
-
- /* create space for uncompressed data */
- len = ((size_t)(log->last - log->first) & ~(((size_t)1 << 10) - 1)) +
- log->stored;
- if ((data = malloc(len)) == NULL)
- return -2;
-
- /* do statement here is just a cheap trick for error handling */
- do {
- /* read in the uncompressed data */
- if (lseek(log->fd, log->first - 1, SEEK_SET) < 0)
- break;
- next = 0;
- while (next < len) {
- if (read(log->fd, buf, 5) != 5)
- break;
- block = PULL2(buf + 1);
- if (next + block > len ||
- read(log->fd, (char *)data + next, block) != block)
- break;
- next += block;
- }
- if (lseek(log->fd, 0, SEEK_CUR) != log->last + 4 + log->stored)
- break;
- log_touch(log);
-
- /* write the uncompressed data to the .add file */
- strcpy(log->end, ".add");
- fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
- if (fd < 0)
- break;
- ret = (size_t)write(fd, data, len) != len;
- if (ret | close(fd))
- break;
- log_touch(log);
-
- /* write the dictionary for the next compress to the .temp file */
- strcpy(log->end, ".temp");
- fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
- if (fd < 0)
- break;
- next = DICT > len ? len : DICT;
- ret = (size_t)write(fd, (char *)data + len - next, next) != next;
- if (ret | close(fd))
- break;
- log_touch(log);
-
- /* roll back to compressed data, mark the compress in progress */
- log->last = log->first;
- log->stored = 0;
- if (log_mark(log, COMPRESS_OP))
- break;
- BAIL(7);
-
- /* compress and append the data (clears mark) */
- ret = log_compress(log, data, len);
- free(data);
- return ret;
- } while (0);
-
- /* broke out of do above on i/o error */
- free(data);
- return -1;
-}
-
-/* gzlog_write() return values:
- 0: all good
- -1: file i/o error (usually access issue)
- -2: memory allocation failure
- -3: invalid log pointer argument */
-int gzlog_write(gzlog *logd, void *data, size_t len)
-{
- int fd, ret;
- struct log *log = logd;
-
- /* check arguments */
- if (log == NULL || strcmp(log->id, LOGID))
- return -3;
- if (data == NULL || len <= 0)
- return 0;
-
- /* see if we lost the lock -- if so get it again and reload the extra
- field information (it probably changed), recover last operation if
- necessary */
- if (log_check(log) && log_open(log))
- return -1;
-
- /* create and write .add file */
- strcpy(log->end, ".add");
- fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
- if (fd < 0)
- return -1;
- ret = (size_t)write(fd, data, len) != len;
- if (ret | close(fd))
- return -1;
- log_touch(log);
-
- /* mark log file with append in progress */
- if (log_mark(log, APPEND_OP))
- return -1;
- BAIL(8);
-
- /* append data (clears mark) */
- if (log_append(log, data, len))
- return -1;
-
- /* check to see if it's time to compress -- if not, then done */
- if (((log->last - log->first) >> 10) + (log->stored >> 10) < TRIGGER)
- return 0;
-
- /* time to compress */
- return gzlog_compress(log);
-}
-
-/* gzlog_close() return values:
- 0: ok
- -3: invalid log pointer argument */
-int gzlog_close(gzlog *logd)
-{
- struct log *log = logd;
-
- /* check arguments */
- if (log == NULL || strcmp(log->id, LOGID))
- return -3;
-
- /* close the log file and release the lock */
- log_close(log);
-
- /* free structure and return */
- if (log->path != NULL)
- free(log->path);
- strcpy(log->id, "bad");
- free(log);
- return 0;
-}
+++ /dev/null
-/* gzlog.h
- Copyright (C) 2004, 2008, 2012 Mark Adler, all rights reserved
- version 2.2, 14 Aug 2012
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the author be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- Mark Adler madler@alumni.caltech.edu
- */
-
-/* Version History:
- 1.0 26 Nov 2004 First version
- 2.0 25 Apr 2008 Complete redesign for recovery of interrupted operations
- Interface changed slightly in that now path is a prefix
- Compression now occurs as needed during gzlog_write()
- gzlog_write() now always leaves the log file as valid gzip
- 2.1 8 Jul 2012 Fix argument checks in gzlog_compress() and gzlog_write()
- 2.2 14 Aug 2012 Clean up signed comparisons
- */
-
-/*
- The gzlog object allows writing short messages to a gzipped log file,
- opening the log file locked for small bursts, and then closing it. The log
- object works by appending stored (uncompressed) data to the gzip file until
- 1 MB has been accumulated. At that time, the stored data is compressed, and
- replaces the uncompressed data in the file. The log file is truncated to
- its new size at that time. After each write operation, the log file is a
- valid gzip file that can decompressed to recover what was written.
-
- The gzlog operations can be interupted at any point due to an application or
- system crash, and the log file will be recovered the next time the log is
- opened with gzlog_open().
- */
-
-#ifndef GZLOG_H
-#define GZLOG_H
-
-/* gzlog object type */
-typedef void gzlog;
-
-/* Open a gzlog object, creating the log file if it does not exist. Return
- NULL on error. Note that gzlog_open() could take a while to complete if it
- has to wait to verify that a lock is stale (possibly for five minutes), or
- if there is significant contention with other instantiations of this object
- when locking the resource. path is the prefix of the file names created by
- this object. If path is "foo", then the log file will be "foo.gz", and
- other auxiliary files will be created and destroyed during the process:
- "foo.dict" for a compression dictionary, "foo.temp" for a temporary (next)
- dictionary, "foo.add" for data being added or compressed, "foo.lock" for the
- lock file, and "foo.repairs" to log recovery operations performed due to
- interrupted gzlog operations. A gzlog_open() followed by a gzlog_close()
- will recover a previously interrupted operation, if any. */
-gzlog *gzlog_open(char *path);
-
-/* Write to a gzlog object. Return zero on success, -1 if there is a file i/o
- error on any of the gzlog files (this should not happen if gzlog_open()
- succeeded, unless the device has run out of space or leftover auxiliary
- files have permissions or ownership that prevent their use), -2 if there is
- a memory allocation failure, or -3 if the log argument is invalid (e.g. if
- it was not created by gzlog_open()). This function will write data to the
- file uncompressed, until 1 MB has been accumulated, at which time that data
- will be compressed. The log file will be a valid gzip file upon successful
- return. */
-int gzlog_write(gzlog *log, void *data, size_t len);
-
-/* Force compression of any uncompressed data in the log. This should be used
- sparingly, if at all. The main application would be when a log file will
- not be appended to again. If this is used to compress frequently while
- appending, it will both significantly increase the execution time and
- reduce the compression ratio. The return codes are the same as for
- gzlog_write(). */
-int gzlog_compress(gzlog *log);
-
-/* Close a gzlog object. Return zero on success, -3 if the log argument is
- invalid. The log object is freed, and so cannot be referenced again. */
-int gzlog_close(gzlog *log);
-
-#endif
+++ /dev/null
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
- "http://www.w3.org/TR/REC-html40/loose.dtd">
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-<title>zlib Usage Example</title>
-<!-- Copyright (c) 2004, 2005 Mark Adler. -->
-</head>
-<body bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#00A000">
-<h2 align="center"> zlib Usage Example </h2>
-We often get questions about how the <tt>deflate()</tt> and <tt>inflate()</tt> functions should be used.
-Users wonder when they should provide more input, when they should use more output,
-what to do with a <tt>Z_BUF_ERROR</tt>, how to make sure the process terminates properly, and
-so on. So for those who have read <tt>zlib.h</tt> (a few times), and
-would like further edification, below is an annotated example in C of simple routines to compress and decompress
-from an input file to an output file using <tt>deflate()</tt> and <tt>inflate()</tt> respectively. The
-annotations are interspersed between lines of the code. So please read between the lines.
-We hope this helps explain some of the intricacies of <em>zlib</em>.
-<p>
-Without further adieu, here is the program <a href="zpipe.c"><tt>zpipe.c</tt></a>:
-<pre><b>
-/* zpipe.c: example of proper use of zlib's inflate() and deflate()
- Not copyrighted -- provided to the public domain
- Version 1.4 11 December 2005 Mark Adler */
-
-/* Version history:
- 1.0 30 Oct 2004 First version
- 1.1 8 Nov 2004 Add void casting for unused return values
- Use switch statement for inflate() return values
- 1.2 9 Nov 2004 Add assertions to document zlib guarantees
- 1.3 6 Apr 2005 Remove incorrect assertion in inf()
- 1.4 11 Dec 2005 Add hack to avoid MSDOS end-of-line conversions
- Avoid some compiler warnings for input and output buffers
- */
-</b></pre><!-- -->
-We now include the header files for the required definitions. From
-<tt>stdio.h</tt> we use <tt>fopen()</tt>, <tt>fread()</tt>, <tt>fwrite()</tt>,
-<tt>feof()</tt>, <tt>ferror()</tt>, and <tt>fclose()</tt> for file i/o, and
-<tt>fputs()</tt> for error messages. From <tt>string.h</tt> we use
-<tt>strcmp()</tt> for command line argument processing.
-From <tt>assert.h</tt> we use the <tt>assert()</tt> macro.
-From <tt>zlib.h</tt>
-we use the basic compression functions <tt>deflateInit()</tt>,
-<tt>deflate()</tt>, and <tt>deflateEnd()</tt>, and the basic decompression
-functions <tt>inflateInit()</tt>, <tt>inflate()</tt>, and
-<tt>inflateEnd()</tt>.
-<pre><b>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "zlib.h"
-</b></pre><!-- -->
-This is an ugly hack required to avoid corruption of the input and output data on
-Windows/MS-DOS systems. Without this, those systems would assume that the input and output
-files are text, and try to convert the end-of-line characters from one standard to
-another. That would corrupt binary data, and in particular would render the compressed data unusable.
-This sets the input and output to binary which suppresses the end-of-line conversions.
-<tt>SET_BINARY_MODE()</tt> will be used later on <tt>stdin</tt> and <tt>stdout</tt>, at the beginning of <tt>main()</tt>.
-<pre><b>
-#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
-# include <fcntl.h>
-# include <io.h>
-# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-</b></pre><!-- -->
-<tt>CHUNK</tt> is simply the buffer size for feeding data to and pulling data
-from the <em>zlib</em> routines. Larger buffer sizes would be more efficient,
-especially for <tt>inflate()</tt>. If the memory is available, buffers sizes
-on the order of 128K or 256K bytes should be used.
-<pre><b>
-#define CHUNK 16384
-</b></pre><!-- -->
-The <tt>def()</tt> routine compresses data from an input file to an output file. The output data
-will be in the <em>zlib</em> format, which is different from the <em>gzip</em> or <em>zip</em>
-formats. The <em>zlib</em> format has a very small header of only two bytes to identify it as
-a <em>zlib</em> stream and to provide decoding information, and a four-byte trailer with a fast
-check value to verify the integrity of the uncompressed data after decoding.
-<pre><b>
-/* Compress from file source to file dest until EOF on source.
- def() returns Z_OK on success, Z_MEM_ERROR if memory could not be
- allocated for processing, Z_STREAM_ERROR if an invalid compression
- level is supplied, Z_VERSION_ERROR if the version of zlib.h and the
- version of the library linked do not match, or Z_ERRNO if there is
- an error reading or writing the files. */
-int def(FILE *source, FILE *dest, int level)
-{
-</b></pre>
-Here are the local variables for <tt>def()</tt>. <tt>ret</tt> will be used for <em>zlib</em>
-return codes. <tt>flush</tt> will keep track of the current flushing state for <tt>deflate()</tt>,
-which is either no flushing, or flush to completion after the end of the input file is reached.
-<tt>have</tt> is the amount of data returned from <tt>deflate()</tt>. The <tt>strm</tt> structure
-is used to pass information to and from the <em>zlib</em> routines, and to maintain the
-<tt>deflate()</tt> state. <tt>in</tt> and <tt>out</tt> are the input and output buffers for
-<tt>deflate()</tt>.
-<pre><b>
- int ret, flush;
- unsigned have;
- z_stream strm;
- unsigned char in[CHUNK];
- unsigned char out[CHUNK];
-</b></pre><!-- -->
-The first thing we do is to initialize the <em>zlib</em> state for compression using
-<tt>deflateInit()</tt>. This must be done before the first use of <tt>deflate()</tt>.
-The <tt>zalloc</tt>, <tt>zfree</tt>, and <tt>opaque</tt> fields in the <tt>strm</tt>
-structure must be initialized before calling <tt>deflateInit()</tt>. Here they are
-set to the <em>zlib</em> constant <tt>Z_NULL</tt> to request that <em>zlib</em> use
-the default memory allocation routines. An application may also choose to provide
-custom memory allocation routines here. <tt>deflateInit()</tt> will allocate on the
-order of 256K bytes for the internal state.
-(See <a href="zlib_tech.html"><em>zlib Technical Details</em></a>.)
-<p>
-<tt>deflateInit()</tt> is called with a pointer to the structure to be initialized and
-the compression level, which is an integer in the range of -1 to 9. Lower compression
-levels result in faster execution, but less compression. Higher levels result in
-greater compression, but slower execution. The <em>zlib</em> constant Z_DEFAULT_COMPRESSION,
-equal to -1,
-provides a good compromise between compression and speed and is equivalent to level 6.
-Level 0 actually does no compression at all, and in fact expands the data slightly to produce
-the <em>zlib</em> format (it is not a byte-for-byte copy of the input).
-More advanced applications of <em>zlib</em>
-may use <tt>deflateInit2()</tt> here instead. Such an application may want to reduce how
-much memory will be used, at some price in compression. Or it may need to request a
-<em>gzip</em> header and trailer instead of a <em>zlib</em> header and trailer, or raw
-encoding with no header or trailer at all.
-<p>
-We must check the return value of <tt>deflateInit()</tt> against the <em>zlib</em> constant
-<tt>Z_OK</tt> to make sure that it was able to
-allocate memory for the internal state, and that the provided arguments were valid.
-<tt>deflateInit()</tt> will also check that the version of <em>zlib</em> that the <tt>zlib.h</tt>
-file came from matches the version of <em>zlib</em> actually linked with the program. This
-is especially important for environments in which <em>zlib</em> is a shared library.
-<p>
-Note that an application can initialize multiple, independent <em>zlib</em> streams, which can
-operate in parallel. The state information maintained in the structure allows the <em>zlib</em>
-routines to be reentrant.
-<pre><b>
- /* allocate deflate state */
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- ret = deflateInit(&strm, level);
- if (ret != Z_OK)
- return ret;
-</b></pre><!-- -->
-With the pleasantries out of the way, now we can get down to business. The outer <tt>do</tt>-loop
-reads all of the input file and exits at the bottom of the loop once end-of-file is reached.
-This loop contains the only call of <tt>deflate()</tt>. So we must make sure that all of the
-input data has been processed and that all of the output data has been generated and consumed
-before we fall out of the loop at the bottom.
-<pre><b>
- /* compress until end of file */
- do {
-</b></pre>
-We start off by reading data from the input file. The number of bytes read is put directly
-into <tt>avail_in</tt>, and a pointer to those bytes is put into <tt>next_in</tt>. We also
-check to see if end-of-file on the input has been reached. If we are at the end of file, then <tt>flush</tt> is set to the
-<em>zlib</em> constant <tt>Z_FINISH</tt>, which is later passed to <tt>deflate()</tt> to
-indicate that this is the last chunk of input data to compress. We need to use <tt>feof()</tt>
-to check for end-of-file as opposed to seeing if fewer than <tt>CHUNK</tt> bytes have been read. The
-reason is that if the input file length is an exact multiple of <tt>CHUNK</tt>, we will miss
-the fact that we got to the end-of-file, and not know to tell <tt>deflate()</tt> to finish
-up the compressed stream. If we are not yet at the end of the input, then the <em>zlib</em>
-constant <tt>Z_NO_FLUSH</tt> will be passed to <tt>deflate</tt> to indicate that we are still
-in the middle of the uncompressed data.
-<p>
-If there is an error in reading from the input file, the process is aborted with
-<tt>deflateEnd()</tt> being called to free the allocated <em>zlib</em> state before returning
-the error. We wouldn't want a memory leak, now would we? <tt>deflateEnd()</tt> can be called
-at any time after the state has been initialized. Once that's done, <tt>deflateInit()</tt> (or
-<tt>deflateInit2()</tt>) would have to be called to start a new compression process. There is
-no point here in checking the <tt>deflateEnd()</tt> return code. The deallocation can't fail.
-<pre><b>
- strm.avail_in = fread(in, 1, CHUNK, source);
- if (ferror(source)) {
- (void)deflateEnd(&strm);
- return Z_ERRNO;
- }
- flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
- strm.next_in = in;
-</b></pre><!-- -->
-The inner <tt>do</tt>-loop passes our chunk of input data to <tt>deflate()</tt>, and then
-keeps calling <tt>deflate()</tt> until it is done producing output. Once there is no more
-new output, <tt>deflate()</tt> is guaranteed to have consumed all of the input, i.e.,
-<tt>avail_in</tt> will be zero.
-<pre><b>
- /* run deflate() on input until output buffer not full, finish
- compression if all of source has been read in */
- do {
-</b></pre>
-Output space is provided to <tt>deflate()</tt> by setting <tt>avail_out</tt> to the number
-of available output bytes and <tt>next_out</tt> to a pointer to that space.
-<pre><b>
- strm.avail_out = CHUNK;
- strm.next_out = out;
-</b></pre>
-Now we call the compression engine itself, <tt>deflate()</tt>. It takes as many of the
-<tt>avail_in</tt> bytes at <tt>next_in</tt> as it can process, and writes as many as
-<tt>avail_out</tt> bytes to <tt>next_out</tt>. Those counters and pointers are then
-updated past the input data consumed and the output data written. It is the amount of
-output space available that may limit how much input is consumed.
-Hence the inner loop to make sure that
-all of the input is consumed by providing more output space each time. Since <tt>avail_in</tt>
-and <tt>next_in</tt> are updated by <tt>deflate()</tt>, we don't have to mess with those
-between <tt>deflate()</tt> calls until it's all used up.
-<p>
-The parameters to <tt>deflate()</tt> are a pointer to the <tt>strm</tt> structure containing
-the input and output information and the internal compression engine state, and a parameter
-indicating whether and how to flush data to the output. Normally <tt>deflate</tt> will consume
-several K bytes of input data before producing any output (except for the header), in order
-to accumulate statistics on the data for optimum compression. It will then put out a burst of
-compressed data, and proceed to consume more input before the next burst. Eventually,
-<tt>deflate()</tt>
-must be told to terminate the stream, complete the compression with provided input data, and
-write out the trailer check value. <tt>deflate()</tt> will continue to compress normally as long
-as the flush parameter is <tt>Z_NO_FLUSH</tt>. Once the <tt>Z_FINISH</tt> parameter is provided,
-<tt>deflate()</tt> will begin to complete the compressed output stream. However depending on how
-much output space is provided, <tt>deflate()</tt> may have to be called several times until it
-has provided the complete compressed stream, even after it has consumed all of the input. The flush
-parameter must continue to be <tt>Z_FINISH</tt> for those subsequent calls.
-<p>
-There are other values of the flush parameter that are used in more advanced applications. You can
-force <tt>deflate()</tt> to produce a burst of output that encodes all of the input data provided
-so far, even if it wouldn't have otherwise, for example to control data latency on a link with
-compressed data. You can also ask that <tt>deflate()</tt> do that as well as erase any history up to
-that point so that what follows can be decompressed independently, for example for random access
-applications. Both requests will degrade compression by an amount depending on how often such
-requests are made.
-<p>
-<tt>deflate()</tt> has a return value that can indicate errors, yet we do not check it here. Why
-not? Well, it turns out that <tt>deflate()</tt> can do no wrong here. Let's go through
-<tt>deflate()</tt>'s return values and dispense with them one by one. The possible values are
-<tt>Z_OK</tt>, <tt>Z_STREAM_END</tt>, <tt>Z_STREAM_ERROR</tt>, or <tt>Z_BUF_ERROR</tt>. <tt>Z_OK</tt>
-is, well, ok. <tt>Z_STREAM_END</tt> is also ok and will be returned for the last call of
-<tt>deflate()</tt>. This is already guaranteed by calling <tt>deflate()</tt> with <tt>Z_FINISH</tt>
-until it has no more output. <tt>Z_STREAM_ERROR</tt> is only possible if the stream is not
-initialized properly, but we did initialize it properly. There is no harm in checking for
-<tt>Z_STREAM_ERROR</tt> here, for example to check for the possibility that some
-other part of the application inadvertently clobbered the memory containing the <em>zlib</em> state.
-<tt>Z_BUF_ERROR</tt> will be explained further below, but
-suffice it to say that this is simply an indication that <tt>deflate()</tt> could not consume
-more input or produce more output. <tt>deflate()</tt> can be called again with more output space
-or more available input, which it will be in this code.
-<pre><b>
- ret = deflate(&strm, flush); /* no bad return value */
- assert(ret != Z_STREAM_ERROR); /* state not clobbered */
-</b></pre>
-Now we compute how much output <tt>deflate()</tt> provided on the last call, which is the
-difference between how much space was provided before the call, and how much output space
-is still available after the call. Then that data, if any, is written to the output file.
-We can then reuse the output buffer for the next call of <tt>deflate()</tt>. Again if there
-is a file i/o error, we call <tt>deflateEnd()</tt> before returning to avoid a memory leak.
-<pre><b>
- have = CHUNK - strm.avail_out;
- if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
- (void)deflateEnd(&strm);
- return Z_ERRNO;
- }
-</b></pre>
-The inner <tt>do</tt>-loop is repeated until the last <tt>deflate()</tt> call fails to fill the
-provided output buffer. Then we know that <tt>deflate()</tt> has done as much as it can with
-the provided input, and that all of that input has been consumed. We can then fall out of this
-loop and reuse the input buffer.
-<p>
-The way we tell that <tt>deflate()</tt> has no more output is by seeing that it did not fill
-the output buffer, leaving <tt>avail_out</tt> greater than zero. However suppose that
-<tt>deflate()</tt> has no more output, but just so happened to exactly fill the output buffer!
-<tt>avail_out</tt> is zero, and we can't tell that <tt>deflate()</tt> has done all it can.
-As far as we know, <tt>deflate()</tt>
-has more output for us. So we call it again. But now <tt>deflate()</tt> produces no output
-at all, and <tt>avail_out</tt> remains unchanged as <tt>CHUNK</tt>. That <tt>deflate()</tt> call
-wasn't able to do anything, either consume input or produce output, and so it returns
-<tt>Z_BUF_ERROR</tt>. (See, I told you I'd cover this later.) However this is not a problem at
-all. Now we finally have the desired indication that <tt>deflate()</tt> is really done,
-and so we drop out of the inner loop to provide more input to <tt>deflate()</tt>.
-<p>
-With <tt>flush</tt> set to <tt>Z_FINISH</tt>, this final set of <tt>deflate()</tt> calls will
-complete the output stream. Once that is done, subsequent calls of <tt>deflate()</tt> would return
-<tt>Z_STREAM_ERROR</tt> if the flush parameter is not <tt>Z_FINISH</tt>, and do no more processing
-until the state is reinitialized.
-<p>
-Some applications of <em>zlib</em> have two loops that call <tt>deflate()</tt>
-instead of the single inner loop we have here. The first loop would call
-without flushing and feed all of the data to <tt>deflate()</tt>. The second loop would call
-<tt>deflate()</tt> with no more
-data and the <tt>Z_FINISH</tt> parameter to complete the process. As you can see from this
-example, that can be avoided by simply keeping track of the current flush state.
-<pre><b>
- } while (strm.avail_out == 0);
- assert(strm.avail_in == 0); /* all input will be used */
-</b></pre><!-- -->
-Now we check to see if we have already processed all of the input file. That information was
-saved in the <tt>flush</tt> variable, so we see if that was set to <tt>Z_FINISH</tt>. If so,
-then we're done and we fall out of the outer loop. We're guaranteed to get <tt>Z_STREAM_END</tt>
-from the last <tt>deflate()</tt> call, since we ran it until the last chunk of input was
-consumed and all of the output was generated.
-<pre><b>
- /* done when last data in file processed */
- } while (flush != Z_FINISH);
- assert(ret == Z_STREAM_END); /* stream will be complete */
-</b></pre><!-- -->
-The process is complete, but we still need to deallocate the state to avoid a memory leak
-(or rather more like a memory hemorrhage if you didn't do this). Then
-finally we can return with a happy return value.
-<pre><b>
- /* clean up and return */
- (void)deflateEnd(&strm);
- return Z_OK;
-}
-</b></pre><!-- -->
-Now we do the same thing for decompression in the <tt>inf()</tt> routine. <tt>inf()</tt>
-decompresses what is hopefully a valid <em>zlib</em> stream from the input file and writes the
-uncompressed data to the output file. Much of the discussion above for <tt>def()</tt>
-applies to <tt>inf()</tt> as well, so the discussion here will focus on the differences between
-the two.
-<pre><b>
-/* Decompress from file source to file dest until stream ends or EOF.
- inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
- allocated for processing, Z_DATA_ERROR if the deflate data is
- invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
- the version of the library linked do not match, or Z_ERRNO if there
- is an error reading or writing the files. */
-int inf(FILE *source, FILE *dest)
-{
-</b></pre>
-The local variables have the same functionality as they do for <tt>def()</tt>. The
-only difference is that there is no <tt>flush</tt> variable, since <tt>inflate()</tt>
-can tell from the <em>zlib</em> stream itself when the stream is complete.
-<pre><b>
- int ret;
- unsigned have;
- z_stream strm;
- unsigned char in[CHUNK];
- unsigned char out[CHUNK];
-</b></pre><!-- -->
-The initialization of the state is the same, except that there is no compression level,
-of course, and two more elements of the structure are initialized. <tt>avail_in</tt>
-and <tt>next_in</tt> must be initialized before calling <tt>inflateInit()</tt>. This
-is because the application has the option to provide the start of the zlib stream in
-order for <tt>inflateInit()</tt> to have access to information about the compression
-method to aid in memory allocation. In the current implementation of <em>zlib</em>
-(up through versions 1.2.x), the method-dependent memory allocations are deferred to the first call of
-<tt>inflate()</tt> anyway. However those fields must be initialized since later versions
-of <em>zlib</em> that provide more compression methods may take advantage of this interface.
-In any case, no decompression is performed by <tt>inflateInit()</tt>, so the
-<tt>avail_out</tt> and <tt>next_out</tt> fields do not need to be initialized before calling.
-<p>
-Here <tt>avail_in</tt> is set to zero and <tt>next_in</tt> is set to <tt>Z_NULL</tt> to
-indicate that no input data is being provided.
-<pre><b>
- /* allocate inflate state */
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- strm.avail_in = 0;
- strm.next_in = Z_NULL;
- ret = inflateInit(&strm);
- if (ret != Z_OK)
- return ret;
-</b></pre><!-- -->
-The outer <tt>do</tt>-loop decompresses input until <tt>inflate()</tt> indicates
-that it has reached the end of the compressed data and has produced all of the uncompressed
-output. This is in contrast to <tt>def()</tt> which processes all of the input file.
-If end-of-file is reached before the compressed data self-terminates, then the compressed
-data is incomplete and an error is returned.
-<pre><b>
- /* decompress until deflate stream ends or end of file */
- do {
-</b></pre>
-We read input data and set the <tt>strm</tt> structure accordingly. If we've reached the
-end of the input file, then we leave the outer loop and report an error, since the
-compressed data is incomplete. Note that we may read more data than is eventually consumed
-by <tt>inflate()</tt>, if the input file continues past the <em>zlib</em> stream.
-For applications where <em>zlib</em> streams are embedded in other data, this routine would
-need to be modified to return the unused data, or at least indicate how much of the input
-data was not used, so the application would know where to pick up after the <em>zlib</em> stream.
-<pre><b>
- strm.avail_in = fread(in, 1, CHUNK, source);
- if (ferror(source)) {
- (void)inflateEnd(&strm);
- return Z_ERRNO;
- }
- if (strm.avail_in == 0)
- break;
- strm.next_in = in;
-</b></pre><!-- -->
-The inner <tt>do</tt>-loop has the same function it did in <tt>def()</tt>, which is to
-keep calling <tt>inflate()</tt> until has generated all of the output it can with the
-provided input.
-<pre><b>
- /* run inflate() on input until output buffer not full */
- do {
-</b></pre>
-Just like in <tt>def()</tt>, the same output space is provided for each call of <tt>inflate()</tt>.
-<pre><b>
- strm.avail_out = CHUNK;
- strm.next_out = out;
-</b></pre>
-Now we run the decompression engine itself. There is no need to adjust the flush parameter, since
-the <em>zlib</em> format is self-terminating. The main difference here is that there are
-return values that we need to pay attention to. <tt>Z_DATA_ERROR</tt>
-indicates that <tt>inflate()</tt> detected an error in the <em>zlib</em> compressed data format,
-which means that either the data is not a <em>zlib</em> stream to begin with, or that the data was
-corrupted somewhere along the way since it was compressed. The other error to be processed is
-<tt>Z_MEM_ERROR</tt>, which can occur since memory allocation is deferred until <tt>inflate()</tt>
-needs it, unlike <tt>deflate()</tt>, whose memory is allocated at the start by <tt>deflateInit()</tt>.
-<p>
-Advanced applications may use
-<tt>deflateSetDictionary()</tt> to prime <tt>deflate()</tt> with a set of likely data to improve the
-first 32K or so of compression. This is noted in the <em>zlib</em> header, so <tt>inflate()</tt>
-requests that that dictionary be provided before it can start to decompress. Without the dictionary,
-correct decompression is not possible. For this routine, we have no idea what the dictionary is,
-so the <tt>Z_NEED_DICT</tt> indication is converted to a <tt>Z_DATA_ERROR</tt>.
-<p>
-<tt>inflate()</tt> can also return <tt>Z_STREAM_ERROR</tt>, which should not be possible here,
-but could be checked for as noted above for <tt>def()</tt>. <tt>Z_BUF_ERROR</tt> does not need to be
-checked for here, for the same reasons noted for <tt>def()</tt>. <tt>Z_STREAM_END</tt> will be
-checked for later.
-<pre><b>
- ret = inflate(&strm, Z_NO_FLUSH);
- assert(ret != Z_STREAM_ERROR); /* state not clobbered */
- switch (ret) {
- case Z_NEED_DICT:
- ret = Z_DATA_ERROR; /* and fall through */
- case Z_DATA_ERROR:
- case Z_MEM_ERROR:
- (void)inflateEnd(&strm);
- return ret;
- }
-</b></pre>
-The output of <tt>inflate()</tt> is handled identically to that of <tt>deflate()</tt>.
-<pre><b>
- have = CHUNK - strm.avail_out;
- if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
- (void)inflateEnd(&strm);
- return Z_ERRNO;
- }
-</b></pre>
-The inner <tt>do</tt>-loop ends when <tt>inflate()</tt> has no more output as indicated
-by not filling the output buffer, just as for <tt>deflate()</tt>. In this case, we cannot
-assert that <tt>strm.avail_in</tt> will be zero, since the deflate stream may end before the file
-does.
-<pre><b>
- } while (strm.avail_out == 0);
-</b></pre><!-- -->
-The outer <tt>do</tt>-loop ends when <tt>inflate()</tt> reports that it has reached the
-end of the input <em>zlib</em> stream, has completed the decompression and integrity
-check, and has provided all of the output. This is indicated by the <tt>inflate()</tt>
-return value <tt>Z_STREAM_END</tt>. The inner loop is guaranteed to leave <tt>ret</tt>
-equal to <tt>Z_STREAM_END</tt> if the last chunk of the input file read contained the end
-of the <em>zlib</em> stream. So if the return value is not <tt>Z_STREAM_END</tt>, the
-loop continues to read more input.
-<pre><b>
- /* done when inflate() says it's done */
- } while (ret != Z_STREAM_END);
-</b></pre><!-- -->
-At this point, decompression successfully completed, or we broke out of the loop due to no
-more data being available from the input file. If the last <tt>inflate()</tt> return value
-is not <tt>Z_STREAM_END</tt>, then the <em>zlib</em> stream was incomplete and a data error
-is returned. Otherwise, we return with a happy return value. Of course, <tt>inflateEnd()</tt>
-is called first to avoid a memory leak.
-<pre><b>
- /* clean up and return */
- (void)inflateEnd(&strm);
- return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
-}
-</b></pre><!-- -->
-That ends the routines that directly use <em>zlib</em>. The following routines make this
-a command-line program by running data through the above routines from <tt>stdin</tt> to
-<tt>stdout</tt>, and handling any errors reported by <tt>def()</tt> or <tt>inf()</tt>.
-<p>
-<tt>zerr()</tt> is used to interpret the possible error codes from <tt>def()</tt>
-and <tt>inf()</tt>, as detailed in their comments above, and print out an error message.
-Note that these are only a subset of the possible return values from <tt>deflate()</tt>
-and <tt>inflate()</tt>.
-<pre><b>
-/* report a zlib or i/o error */
-void zerr(int ret)
-{
- fputs("zpipe: ", stderr);
- switch (ret) {
- case Z_ERRNO:
- if (ferror(stdin))
- fputs("error reading stdin\n", stderr);
- if (ferror(stdout))
- fputs("error writing stdout\n", stderr);
- break;
- case Z_STREAM_ERROR:
- fputs("invalid compression level\n", stderr);
- break;
- case Z_DATA_ERROR:
- fputs("invalid or incomplete deflate data\n", stderr);
- break;
- case Z_MEM_ERROR:
- fputs("out of memory\n", stderr);
- break;
- case Z_VERSION_ERROR:
- fputs("zlib version mismatch!\n", stderr);
- }
-}
-</b></pre><!-- -->
-Here is the <tt>main()</tt> routine used to test <tt>def()</tt> and <tt>inf()</tt>. The
-<tt>zpipe</tt> command is simply a compression pipe from <tt>stdin</tt> to <tt>stdout</tt>, if
-no arguments are given, or it is a decompression pipe if <tt>zpipe -d</tt> is used. If any other
-arguments are provided, no compression or decompression is performed. Instead a usage
-message is displayed. Examples are <tt>zpipe < foo.txt > foo.txt.z</tt> to compress, and
-<tt>zpipe -d < foo.txt.z > foo.txt</tt> to decompress.
-<pre><b>
-/* compress or decompress from stdin to stdout */
-int main(int argc, char **argv)
-{
- int ret;
-
- /* avoid end-of-line conversions */
- SET_BINARY_MODE(stdin);
- SET_BINARY_MODE(stdout);
-
- /* do compression if no arguments */
- if (argc == 1) {
- ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION);
- if (ret != Z_OK)
- zerr(ret);
- return ret;
- }
-
- /* do decompression if -d specified */
- else if (argc == 2 && strcmp(argv[1], "-d") == 0) {
- ret = inf(stdin, stdout);
- if (ret != Z_OK)
- zerr(ret);
- return ret;
- }
-
- /* otherwise, report usage */
- else {
- fputs("zpipe usage: zpipe [-d] < source > dest\n", stderr);
- return 1;
- }
-}
-</b></pre>
-<hr>
-<i>Copyright (c) 2004, 2005 by Mark Adler<br>Last modified 11 December 2005</i>
-</body>
-</html>
+++ /dev/null
-/* zpipe.c: example of proper use of zlib's inflate() and deflate()
- Not copyrighted -- provided to the public domain
- Version 1.4 11 December 2005 Mark Adler */
-
-/* Version history:
- 1.0 30 Oct 2004 First version
- 1.1 8 Nov 2004 Add void casting for unused return values
- Use switch statement for inflate() return values
- 1.2 9 Nov 2004 Add assertions to document zlib guarantees
- 1.3 6 Apr 2005 Remove incorrect assertion in inf()
- 1.4 11 Dec 2005 Add hack to avoid MSDOS end-of-line conversions
- Avoid some compiler warnings for input and output buffers
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "zlib.h"
-
-#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
-# include <fcntl.h>
-# include <io.h>
-# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-
-#define CHUNK 16384
-
-/* Compress from file source to file dest until EOF on source.
- def() returns Z_OK on success, Z_MEM_ERROR if memory could not be
- allocated for processing, Z_STREAM_ERROR if an invalid compression
- level is supplied, Z_VERSION_ERROR if the version of zlib.h and the
- version of the library linked do not match, or Z_ERRNO if there is
- an error reading or writing the files. */
-int def(FILE *source, FILE *dest, int level)
-{
- int ret, flush;
- unsigned have;
- z_stream strm;
- unsigned char in[CHUNK];
- unsigned char out[CHUNK];
-
- /* allocate deflate state */
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- ret = deflateInit(&strm, level);
- if (ret != Z_OK)
- return ret;
-
- /* compress until end of file */
- do {
- strm.avail_in = fread(in, 1, CHUNK, source);
- if (ferror(source)) {
- (void)deflateEnd(&strm);
- return Z_ERRNO;
- }
- flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
- strm.next_in = in;
-
- /* run deflate() on input until output buffer not full, finish
- compression if all of source has been read in */
- do {
- strm.avail_out = CHUNK;
- strm.next_out = out;
- ret = deflate(&strm, flush); /* no bad return value */
- assert(ret != Z_STREAM_ERROR); /* state not clobbered */
- have = CHUNK - strm.avail_out;
- if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
- (void)deflateEnd(&strm);
- return Z_ERRNO;
- }
- } while (strm.avail_out == 0);
- assert(strm.avail_in == 0); /* all input will be used */
-
- /* done when last data in file processed */
- } while (flush != Z_FINISH);
- assert(ret == Z_STREAM_END); /* stream will be complete */
-
- /* clean up and return */
- (void)deflateEnd(&strm);
- return Z_OK;
-}
-
-/* Decompress from file source to file dest until stream ends or EOF.
- inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
- allocated for processing, Z_DATA_ERROR if the deflate data is
- invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
- the version of the library linked do not match, or Z_ERRNO if there
- is an error reading or writing the files. */
-int inf(FILE *source, FILE *dest)
-{
- int ret;
- unsigned have;
- z_stream strm;
- unsigned char in[CHUNK];
- unsigned char out[CHUNK];
-
- /* allocate inflate state */
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- strm.avail_in = 0;
- strm.next_in = Z_NULL;
- ret = inflateInit(&strm);
- if (ret != Z_OK)
- return ret;
-
- /* decompress until deflate stream ends or end of file */
- do {
- strm.avail_in = fread(in, 1, CHUNK, source);
- if (ferror(source)) {
- (void)inflateEnd(&strm);
- return Z_ERRNO;
- }
- if (strm.avail_in == 0)
- break;
- strm.next_in = in;
-
- /* run inflate() on input until output buffer not full */
- do {
- strm.avail_out = CHUNK;
- strm.next_out = out;
- ret = inflate(&strm, Z_NO_FLUSH);
- assert(ret != Z_STREAM_ERROR); /* state not clobbered */
- switch (ret) {
- case Z_NEED_DICT:
- ret = Z_DATA_ERROR; /* and fall through */
- case Z_DATA_ERROR:
- case Z_MEM_ERROR:
- (void)inflateEnd(&strm);
- return ret;
- }
- have = CHUNK - strm.avail_out;
- if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
- (void)inflateEnd(&strm);
- return Z_ERRNO;
- }
- } while (strm.avail_out == 0);
-
- /* done when inflate() says it's done */
- } while (ret != Z_STREAM_END);
-
- /* clean up and return */
- (void)inflateEnd(&strm);
- return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
-}
-
-/* report a zlib or i/o error */
-void zerr(int ret)
-{
- fputs("zpipe: ", stderr);
- switch (ret) {
- case Z_ERRNO:
- if (ferror(stdin))
- fputs("error reading stdin\n", stderr);
- if (ferror(stdout))
- fputs("error writing stdout\n", stderr);
- break;
- case Z_STREAM_ERROR:
- fputs("invalid compression level\n", stderr);
- break;
- case Z_DATA_ERROR:
- fputs("invalid or incomplete deflate data\n", stderr);
- break;
- case Z_MEM_ERROR:
- fputs("out of memory\n", stderr);
- break;
- case Z_VERSION_ERROR:
- fputs("zlib version mismatch!\n", stderr);
- }
-}
-
-/* compress or decompress from stdin to stdout */
-int main(int argc, char **argv)
-{
- int ret;
-
- /* avoid end-of-line conversions */
- SET_BINARY_MODE(stdin);
- SET_BINARY_MODE(stdout);
-
- /* do compression if no arguments */
- if (argc == 1) {
- ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION);
- if (ret != Z_OK)
- zerr(ret);
- return ret;
- }
-
- /* do decompression if -d specified */
- else if (argc == 2 && strcmp(argv[1], "-d") == 0) {
- ret = inf(stdin, stdout);
- if (ret != Z_OK)
- zerr(ret);
- return ret;
- }
-
- /* otherwise, report usage */
- else {
- fputs("zpipe usage: zpipe [-d] < source > dest\n", stderr);
- return 1;
- }
-}
+++ /dev/null
-/* zran.c -- example of zlib/gzip stream indexing and random access
- * Copyright (C) 2005, 2012 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- Version 1.1 29 Sep 2012 Mark Adler */
-
-/* Version History:
- 1.0 29 May 2005 First version
- 1.1 29 Sep 2012 Fix memory reallocation error
- */
-
-/* Illustrate the use of Z_BLOCK, inflatePrime(), and inflateSetDictionary()
- for random access of a compressed file. A file containing a zlib or gzip
- stream is provided on the command line. The compressed stream is decoded in
- its entirety, and an index built with access points about every SPAN bytes
- in the uncompressed output. The compressed file is left open, and can then
- be read randomly, having to decompress on the average SPAN/2 uncompressed
- bytes before getting to the desired block of data.
-
- An access point can be created at the start of any deflate block, by saving
- the starting file offset and bit of that block, and the 32K bytes of
- uncompressed data that precede that block. Also the uncompressed offset of
- that block is saved to provide a referece for locating a desired starting
- point in the uncompressed stream. build_index() works by decompressing the
- input zlib or gzip stream a block at a time, and at the end of each block
- deciding if enough uncompressed data has gone by to justify the creation of
- a new access point. If so, that point is saved in a data structure that
- grows as needed to accommodate the points.
-
- To use the index, an offset in the uncompressed data is provided, for which
- the latest accees point at or preceding that offset is located in the index.
- The input file is positioned to the specified location in the index, and if
- necessary the first few bits of the compressed data is read from the file.
- inflate is initialized with those bits and the 32K of uncompressed data, and
- the decompression then proceeds until the desired offset in the file is
- reached. Then the decompression continues to read the desired uncompressed
- data from the file.
-
- Another approach would be to generate the index on demand. In that case,
- requests for random access reads from the compressed data would try to use
- the index, but if a read far enough past the end of the index is required,
- then further index entries would be generated and added.
-
- There is some fair bit of overhead to starting inflation for the random
- access, mainly copying the 32K byte dictionary. So if small pieces of the
- file are being accessed, it would make sense to implement a cache to hold
- some lookahead and avoid many calls to extract() for small lengths.
-
- Another way to build an index would be to use inflateCopy(). That would
- not be constrained to have access points at block boundaries, but requires
- more memory per access point, and also cannot be saved to file due to the
- use of pointers in the state. The approach here allows for storage of the
- index in a file.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "zlib.h"
-
-#define local static
-
-#define SPAN 1048576L /* desired distance between access points */
-#define WINSIZE 32768U /* sliding window size */
-#define CHUNK 16384 /* file input buffer size */
-
-/* access point entry */
-struct point {
- off_t out; /* corresponding offset in uncompressed data */
- off_t in; /* offset in input file of first full byte */
- int bits; /* number of bits (1-7) from byte at in - 1, or 0 */
- unsigned char window[WINSIZE]; /* preceding 32K of uncompressed data */
-};
-
-/* access point list */
-struct access {
- int have; /* number of list entries filled in */
- int size; /* number of list entries allocated */
- struct point *list; /* allocated list */
-};
-
-/* Deallocate an index built by build_index() */
-local void free_index(struct access *index)
-{
- if (index != NULL) {
- free(index->list);
- free(index);
- }
-}
-
-/* Add an entry to the access point list. If out of memory, deallocate the
- existing list and return NULL. */
-local struct access *addpoint(struct access *index, int bits,
- off_t in, off_t out, unsigned left, unsigned char *window)
-{
- struct point *next;
-
- /* if list is empty, create it (start with eight points) */
- if (index == NULL) {
- index = malloc(sizeof(struct access));
- if (index == NULL) return NULL;
- index->list = malloc(sizeof(struct point) << 3);
- if (index->list == NULL) {
- free(index);
- return NULL;
- }
- index->size = 8;
- index->have = 0;
- }
-
- /* if list is full, make it bigger */
- else if (index->have == index->size) {
- index->size <<= 1;
- next = realloc(index->list, sizeof(struct point) * index->size);
- if (next == NULL) {
- free_index(index);
- return NULL;
- }
- index->list = next;
- }
-
- /* fill in entry and increment how many we have */
- next = index->list + index->have;
- next->bits = bits;
- next->in = in;
- next->out = out;
- if (left)
- memcpy(next->window, window + WINSIZE - left, left);
- if (left < WINSIZE)
- memcpy(next->window + left, window, WINSIZE - left);
- index->have++;
-
- /* return list, possibly reallocated */
- return index;
-}
-
-/* Make one entire pass through the compressed stream and build an index, with
- access points about every span bytes of uncompressed output -- span is
- chosen to balance the speed of random access against the memory requirements
- of the list, about 32K bytes per access point. Note that data after the end
- of the first zlib or gzip stream in the file is ignored. build_index()
- returns the number of access points on success (>= 1), Z_MEM_ERROR for out
- of memory, Z_DATA_ERROR for an error in the input file, or Z_ERRNO for a
- file read error. On success, *built points to the resulting index. */
-local int build_index(FILE *in, off_t span, struct access **built)
-{
- int ret;
- off_t totin, totout; /* our own total counters to avoid 4GB limit */
- off_t last; /* totout value of last access point */
- struct access *index; /* access points being generated */
- z_stream strm;
- unsigned char input[CHUNK];
- unsigned char window[WINSIZE];
-
- /* initialize inflate */
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- strm.avail_in = 0;
- strm.next_in = Z_NULL;
- ret = inflateInit2(&strm, 47); /* automatic zlib or gzip decoding */
- if (ret != Z_OK)
- return ret;
-
- /* inflate the input, maintain a sliding window, and build an index -- this
- also validates the integrity of the compressed data using the check
- information at the end of the gzip or zlib stream */
- totin = totout = last = 0;
- index = NULL; /* will be allocated by first addpoint() */
- strm.avail_out = 0;
- do {
- /* get some compressed data from input file */
- strm.avail_in = fread(input, 1, CHUNK, in);
- if (ferror(in)) {
- ret = Z_ERRNO;
- goto build_index_error;
- }
- if (strm.avail_in == 0) {
- ret = Z_DATA_ERROR;
- goto build_index_error;
- }
- strm.next_in = input;
-
- /* process all of that, or until end of stream */
- do {
- /* reset sliding window if necessary */
- if (strm.avail_out == 0) {
- strm.avail_out = WINSIZE;
- strm.next_out = window;
- }
-
- /* inflate until out of input, output, or at end of block --
- update the total input and output counters */
- totin += strm.avail_in;
- totout += strm.avail_out;
- ret = inflate(&strm, Z_BLOCK); /* return at end of block */
- totin -= strm.avail_in;
- totout -= strm.avail_out;
- if (ret == Z_NEED_DICT)
- ret = Z_DATA_ERROR;
- if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR)
- goto build_index_error;
- if (ret == Z_STREAM_END)
- break;
-
- /* if at end of block, consider adding an index entry (note that if
- data_type indicates an end-of-block, then all of the
- uncompressed data from that block has been delivered, and none
- of the compressed data after that block has been consumed,
- except for up to seven bits) -- the totout == 0 provides an
- entry point after the zlib or gzip header, and assures that the
- index always has at least one access point; we avoid creating an
- access point after the last block by checking bit 6 of data_type
- */
- if ((strm.data_type & 128) && !(strm.data_type & 64) &&
- (totout == 0 || totout - last > span)) {
- index = addpoint(index, strm.data_type & 7, totin,
- totout, strm.avail_out, window);
- if (index == NULL) {
- ret = Z_MEM_ERROR;
- goto build_index_error;
- }
- last = totout;
- }
- } while (strm.avail_in != 0);
- } while (ret != Z_STREAM_END);
-
- /* clean up and return index (release unused entries in list) */
- (void)inflateEnd(&strm);
- index->list = realloc(index->list, sizeof(struct point) * index->have);
- index->size = index->have;
- *built = index;
- return index->size;
-
- /* return error */
- build_index_error:
- (void)inflateEnd(&strm);
- if (index != NULL)
- free_index(index);
- return ret;
-}
-
-/* Use the index to read len bytes from offset into buf, return bytes read or
- negative for error (Z_DATA_ERROR or Z_MEM_ERROR). If data is requested past
- the end of the uncompressed data, then extract() will return a value less
- than len, indicating how much as actually read into buf. This function
- should not return a data error unless the file was modified since the index
- was generated. extract() may also return Z_ERRNO if there is an error on
- reading or seeking the input file. */
-local int extract(FILE *in, struct access *index, off_t offset,
- unsigned char *buf, int len)
-{
- int ret, skip;
- z_stream strm;
- struct point *here;
- unsigned char input[CHUNK];
- unsigned char discard[WINSIZE];
-
- /* proceed only if something reasonable to do */
- if (len < 0)
- return 0;
-
- /* find where in stream to start */
- here = index->list;
- ret = index->have;
- while (--ret && here[1].out <= offset)
- here++;
-
- /* initialize file and inflate state to start there */
- strm.zalloc = Z_NULL;
- strm.zfree = Z_NULL;
- strm.opaque = Z_NULL;
- strm.avail_in = 0;
- strm.next_in = Z_NULL;
- ret = inflateInit2(&strm, -15); /* raw inflate */
- if (ret != Z_OK)
- return ret;
- ret = fseeko(in, here->in - (here->bits ? 1 : 0), SEEK_SET);
- if (ret == -1)
- goto extract_ret;
- if (here->bits) {
- ret = getc(in);
- if (ret == -1) {
- ret = ferror(in) ? Z_ERRNO : Z_DATA_ERROR;
- goto extract_ret;
- }
- (void)inflatePrime(&strm, here->bits, ret >> (8 - here->bits));
- }
- (void)inflateSetDictionary(&strm, here->window, WINSIZE);
-
- /* skip uncompressed bytes until offset reached, then satisfy request */
- offset -= here->out;
- strm.avail_in = 0;
- skip = 1; /* while skipping to offset */
- do {
- /* define where to put uncompressed data, and how much */
- if (offset == 0 && skip) { /* at offset now */
- strm.avail_out = len;
- strm.next_out = buf;
- skip = 0; /* only do this once */
- }
- if (offset > WINSIZE) { /* skip WINSIZE bytes */
- strm.avail_out = WINSIZE;
- strm.next_out = discard;
- offset -= WINSIZE;
- }
- else if (offset != 0) { /* last skip */
- strm.avail_out = (unsigned)offset;
- strm.next_out = discard;
- offset = 0;
- }
-
- /* uncompress until avail_out filled, or end of stream */
- do {
- if (strm.avail_in == 0) {
- strm.avail_in = fread(input, 1, CHUNK, in);
- if (ferror(in)) {
- ret = Z_ERRNO;
- goto extract_ret;
- }
- if (strm.avail_in == 0) {
- ret = Z_DATA_ERROR;
- goto extract_ret;
- }
- strm.next_in = input;
- }
- ret = inflate(&strm, Z_NO_FLUSH); /* normal inflate */
- if (ret == Z_NEED_DICT)
- ret = Z_DATA_ERROR;
- if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR)
- goto extract_ret;
- if (ret == Z_STREAM_END)
- break;
- } while (strm.avail_out != 0);
-
- /* if reach end of stream, then don't keep trying to get more */
- if (ret == Z_STREAM_END)
- break;
-
- /* do until offset reached and requested data read, or stream ends */
- } while (skip);
-
- /* compute number of uncompressed bytes read after offset */
- ret = skip ? 0 : len - strm.avail_out;
-
- /* clean up and return bytes read or error */
- extract_ret:
- (void)inflateEnd(&strm);
- return ret;
-}
-
-/* Demonstrate the use of build_index() and extract() by processing the file
- provided on the command line, and the extracting 16K from about 2/3rds of
- the way through the uncompressed output, and writing that to stdout. */
-int main(int argc, char **argv)
-{
- int len;
- off_t offset;
- FILE *in;
- struct access *index = NULL;
- unsigned char buf[CHUNK];
-
- /* open input file */
- if (argc != 2) {
- fprintf(stderr, "usage: zran file.gz\n");
- return 1;
- }
- in = fopen(argv[1], "rb");
- if (in == NULL) {
- fprintf(stderr, "zran: could not open %s for reading\n", argv[1]);
- return 1;
- }
-
- /* build index */
- len = build_index(in, SPAN, &index);
- if (len < 0) {
- fclose(in);
- switch (len) {
- case Z_MEM_ERROR:
- fprintf(stderr, "zran: out of memory\n");
- break;
- case Z_DATA_ERROR:
- fprintf(stderr, "zran: compressed data error in %s\n", argv[1]);
- break;
- case Z_ERRNO:
- fprintf(stderr, "zran: read error on %s\n", argv[1]);
- break;
- default:
- fprintf(stderr, "zran: error %d while building index\n", len);
- }
- return 1;
- }
- fprintf(stderr, "zran: built index with %d access points\n", len);
-
- /* use index by reading some bytes from an arbitrary offset */
- offset = (index->list[index->have - 1].out << 1) / 3;
- len = extract(in, index, offset, buf, CHUNK);
- if (len < 0)
- fprintf(stderr, "zran: extraction failed: %s error\n",
- len == Z_MEM_ERROR ? "out of memory" : "input corrupted");
- else {
- fwrite(buf, 1, len, stdout);
- fprintf(stderr, "zran: extracted %d bytes at %llu\n", len, offset);
- }
-
- /* clean up and exit */
- free_index(index);
- fclose(in);
- return 0;
-}
+++ /dev/null
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- </QPM:OrderDependency>
- </QPM:ProductInstallationProcedure>
- </QPM:PackageManifest>
-
- <QPM:Launch>
- </QPM:Launch>
- </QPG:PackageFilter>
- </QPG:Values>
-</QPG:Generation>
projects / thirdparty / zlib-ng.git / commitdiff
