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c45f211e | 1 | /* zutil.h -- internal interface and configuration of the compression library |
43743d63 | 2 | * Copyright (C) 1995-2010 Jean-loup Gailly. |
c45f211e TT |
3 | * For conditions of distribution and use, see copyright notice in zlib.h |
4 | */ | |
5 | ||
6 | /* WARNING: this file should *not* be used by applications. It is | |
7 | part of the implementation of the compression library and is | |
8 | subject to change. Applications should only use zlib.h. | |
9 | */ | |
10 | ||
e1b56469 | 11 | /* @(#) $Id: zutil.h,v 1.1.1.2 2002/03/11 21:53:28 tromey Exp $ */ |
c45f211e | 12 | |
17210dff TT |
13 | #ifndef ZUTIL_H |
14 | #define ZUTIL_H | |
c45f211e | 15 | |
43743d63 MK |
16 | #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) |
17 | # define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) | |
18 | #else | |
19 | # define ZLIB_INTERNAL | |
20 | #endif | |
21 | ||
c45f211e TT |
22 | #include "zlib.h" |
23 | ||
24 | #ifdef STDC | |
43743d63 | 25 | # if !(defined(_WIN32_WCE) && defined(_MSC_VER)) |
ef338166 TT |
26 | # include <stddef.h> |
27 | # endif | |
c45f211e TT |
28 | # include <string.h> |
29 | # include <stdlib.h> | |
30 | #endif | |
c45f211e TT |
31 | |
32 | #ifndef local | |
33 | # define local static | |
34 | #endif | |
35 | /* compile with -Dlocal if your debugger can't find static symbols */ | |
36 | ||
37 | typedef unsigned char uch; | |
38 | typedef uch FAR uchf; | |
39 | typedef unsigned short ush; | |
40 | typedef ush FAR ushf; | |
41 | typedef unsigned long ulg; | |
42 | ||
17210dff | 43 | extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ |
c45f211e TT |
44 | /* (size given to avoid silly warnings with Visual C++) */ |
45 | ||
46 | #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] | |
47 | ||
48 | #define ERR_RETURN(strm,err) \ | |
49 | return (strm->msg = (char*)ERR_MSG(err), (err)) | |
50 | /* To be used only when the state is known to be valid */ | |
51 | ||
52 | /* common constants */ | |
53 | ||
54 | #ifndef DEF_WBITS | |
55 | # define DEF_WBITS MAX_WBITS | |
56 | #endif | |
57 | /* default windowBits for decompression. MAX_WBITS is for compression only */ | |
58 | ||
59 | #if MAX_MEM_LEVEL >= 8 | |
60 | # define DEF_MEM_LEVEL 8 | |
61 | #else | |
62 | # define DEF_MEM_LEVEL MAX_MEM_LEVEL | |
63 | #endif | |
64 | /* default memLevel */ | |
65 | ||
66 | #define STORED_BLOCK 0 | |
67 | #define STATIC_TREES 1 | |
68 | #define DYN_TREES 2 | |
69 | /* The three kinds of block type */ | |
70 | ||
71 | #define MIN_MATCH 3 | |
72 | #define MAX_MATCH 258 | |
73 | /* The minimum and maximum match lengths */ | |
74 | ||
75 | #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ | |
76 | ||
77 | /* target dependencies */ | |
78 | ||
17210dff | 79 | #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) |
c45f211e TT |
80 | # define OS_CODE 0x00 |
81 | # if defined(__TURBOC__) || defined(__BORLANDC__) | |
43743d63 | 82 | # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) |
c45f211e TT |
83 | /* Allow compilation with ANSI keywords only enabled */ |
84 | void _Cdecl farfree( void *block ); | |
85 | void *_Cdecl farmalloc( unsigned long nbytes ); | |
86 | # else | |
17210dff | 87 | # include <alloc.h> |
c45f211e TT |
88 | # endif |
89 | # else /* MSC or DJGPP */ | |
90 | # include <malloc.h> | |
91 | # endif | |
92 | #endif | |
93 | ||
17210dff TT |
94 | #ifdef AMIGA |
95 | # define OS_CODE 0x01 | |
c45f211e TT |
96 | #endif |
97 | ||
98 | #if defined(VAXC) || defined(VMS) | |
99 | # define OS_CODE 0x02 | |
100 | # define F_OPEN(name, mode) \ | |
101 | fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") | |
102 | #endif | |
103 | ||
c45f211e TT |
104 | #if defined(ATARI) || defined(atarist) |
105 | # define OS_CODE 0x05 | |
106 | #endif | |
107 | ||
17210dff TT |
108 | #ifdef OS2 |
109 | # define OS_CODE 0x06 | |
ef338166 | 110 | # ifdef M_I86 |
43743d63 | 111 | # include <malloc.h> |
ef338166 | 112 | # endif |
17210dff TT |
113 | #endif |
114 | ||
c45f211e TT |
115 | #if defined(MACOS) || defined(TARGET_OS_MAC) |
116 | # define OS_CODE 0x07 | |
117 | # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os | |
118 | # include <unix.h> /* for fdopen */ | |
119 | # else | |
120 | # ifndef fdopen | |
121 | # define fdopen(fd,mode) NULL /* No fdopen() */ | |
122 | # endif | |
123 | # endif | |
124 | #endif | |
125 | ||
c45f211e TT |
126 | #ifdef TOPS20 |
127 | # define OS_CODE 0x0a | |
128 | #endif | |
129 | ||
17210dff TT |
130 | #ifdef WIN32 |
131 | # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ | |
132 | # define OS_CODE 0x0b | |
133 | # endif | |
134 | #endif | |
135 | ||
136 | #ifdef __50SERIES /* Prime/PRIMOS */ | |
137 | # define OS_CODE 0x0f | |
138 | #endif | |
139 | ||
c45f211e TT |
140 | #if defined(_BEOS_) || defined(RISCOS) |
141 | # define fdopen(fd,mode) NULL /* No fdopen() */ | |
142 | #endif | |
143 | ||
43743d63 | 144 | #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX |
17210dff TT |
145 | # if defined(_WIN32_WCE) |
146 | # define fdopen(fd,mode) NULL /* No fdopen() */ | |
147 | # ifndef _PTRDIFF_T_DEFINED | |
148 | typedef int ptrdiff_t; | |
149 | # define _PTRDIFF_T_DEFINED | |
150 | # endif | |
151 | # else | |
152 | # define fdopen(fd,type) _fdopen(fd,type) | |
153 | # endif | |
c45f211e TT |
154 | #endif |
155 | ||
43743d63 MK |
156 | #if defined(__BORLANDC__) |
157 | #pragma warn -8004 | |
158 | #pragma warn -8008 | |
159 | #pragma warn -8066 | |
160 | #endif | |
161 | ||
162 | /* provide prototypes for these when building zlib without LFS */ | |
163 | #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 | |
164 | ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); | |
165 | ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); | |
166 | #endif | |
167 | ||
17210dff | 168 | /* common defaults */ |
c45f211e TT |
169 | |
170 | #ifndef OS_CODE | |
171 | # define OS_CODE 0x03 /* assume Unix */ | |
172 | #endif | |
173 | ||
174 | #ifndef F_OPEN | |
175 | # define F_OPEN(name, mode) fopen((name), (mode)) | |
176 | #endif | |
177 | ||
178 | /* functions */ | |
179 | ||
17210dff TT |
180 | #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) |
181 | # ifndef HAVE_VSNPRINTF | |
182 | # define HAVE_VSNPRINTF | |
183 | # endif | |
184 | #endif | |
185 | #if defined(__CYGWIN__) | |
186 | # ifndef HAVE_VSNPRINTF | |
187 | # define HAVE_VSNPRINTF | |
188 | # endif | |
189 | #endif | |
190 | #ifndef HAVE_VSNPRINTF | |
191 | # ifdef MSDOS | |
192 | /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), | |
193 | but for now we just assume it doesn't. */ | |
194 | # define NO_vsnprintf | |
195 | # endif | |
196 | # ifdef __TURBOC__ | |
197 | # define NO_vsnprintf | |
198 | # endif | |
199 | # ifdef WIN32 | |
200 | /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ | |
201 | # if !defined(vsnprintf) && !defined(NO_vsnprintf) | |
43743d63 MK |
202 | # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 ) |
203 | # define vsnprintf _vsnprintf | |
204 | # endif | |
17210dff TT |
205 | # endif |
206 | # endif | |
207 | # ifdef __SASC | |
208 | # define NO_vsnprintf | |
209 | # endif | |
210 | #endif | |
ef338166 TT |
211 | #ifdef VMS |
212 | # define NO_vsnprintf | |
c45f211e TT |
213 | #endif |
214 | ||
215 | #if defined(pyr) | |
216 | # define NO_MEMCPY | |
217 | #endif | |
218 | #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) | |
219 | /* Use our own functions for small and medium model with MSC <= 5.0. | |
220 | * You may have to use the same strategy for Borland C (untested). | |
221 | * The __SC__ check is for Symantec. | |
222 | */ | |
223 | # define NO_MEMCPY | |
224 | #endif | |
225 | #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) | |
226 | # define HAVE_MEMCPY | |
227 | #endif | |
228 | #ifdef HAVE_MEMCPY | |
229 | # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ | |
230 | # define zmemcpy _fmemcpy | |
231 | # define zmemcmp _fmemcmp | |
232 | # define zmemzero(dest, len) _fmemset(dest, 0, len) | |
233 | # else | |
234 | # define zmemcpy memcpy | |
235 | # define zmemcmp memcmp | |
236 | # define zmemzero(dest, len) memset(dest, 0, len) | |
237 | # endif | |
238 | #else | |
43743d63 MK |
239 | void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); |
240 | int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); | |
241 | void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); | |
c45f211e TT |
242 | #endif |
243 | ||
244 | /* Diagnostic functions */ | |
245 | #ifdef DEBUG | |
246 | # include <stdio.h> | |
43743d63 MK |
247 | extern int ZLIB_INTERNAL z_verbose; |
248 | extern void ZLIB_INTERNAL z_error OF((char *m)); | |
c45f211e TT |
249 | # define Assert(cond,msg) {if(!(cond)) z_error(msg);} |
250 | # define Trace(x) {if (z_verbose>=0) fprintf x ;} | |
251 | # define Tracev(x) {if (z_verbose>0) fprintf x ;} | |
252 | # define Tracevv(x) {if (z_verbose>1) fprintf x ;} | |
253 | # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} | |
254 | # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} | |
255 | #else | |
256 | # define Assert(cond,msg) | |
257 | # define Trace(x) | |
258 | # define Tracev(x) | |
259 | # define Tracevv(x) | |
260 | # define Tracec(c,x) | |
261 | # define Tracecv(c,x) | |
262 | #endif | |
263 | ||
264 | ||
43743d63 MK |
265 | voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, |
266 | unsigned size)); | |
267 | void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); | |
c45f211e TT |
268 | |
269 | #define ZALLOC(strm, items, size) \ | |
270 | (*((strm)->zalloc))((strm)->opaque, (items), (size)) | |
271 | #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) | |
272 | #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} | |
273 | ||
17210dff | 274 | #endif /* ZUTIL_H */ |