From: Michihiro NAKAJIMA Date: Mon, 28 Nov 2011 07:47:23 +0000 (-0500) Subject: Add support for PPMd. X-Git-Tag: v3.0.2~92 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e0a119a420ae8ced373bda7b8a38eb730b062e1;p=thirdparty%2Flibarchive.git Add support for PPMd. SVN-Revision: 3880 --- diff --git a/Makefile.am b/Makefile.am index c75f19397..e45103fed 100644 --- a/Makefile.am +++ b/Makefile.am @@ -467,6 +467,7 @@ libarchive_test_EXTRA_DIST=\ libarchive/test/test_read_format_7zip_lzma1_2.7z.uu \ libarchive/test/test_read_format_7zip_lzma1_lzma2.7z.uu \ libarchive/test/test_read_format_7zip_lzma2.7z.uu \ + libarchive/test/test_read_format_7zip_ppmd.7z.uu \ libarchive/test/test_read_format_ar.ar.uu \ libarchive/test/test_read_format_cab_1.cab.uu \ libarchive/test/test_read_format_cab_2.cab.uu \ diff --git a/libarchive/archive_read_support_format_7zip.c b/libarchive/archive_read_support_format_7zip.c index 760985da8..a7d79c7d1 100644 --- a/libarchive/archive_read_support_format_7zip.c +++ b/libarchive/archive_read_support_format_7zip.c @@ -47,6 +47,7 @@ __FBSDID("$FreeBSD$"); #include "archive.h" #include "archive_entry.h" #include "archive_entry_locale.h" +#include "archive_ppmd7_private.h" #include "archive_private.h" #include "archive_read_private.h" #include "archive_endian.h" @@ -245,6 +246,20 @@ struct _7zip { z_stream stream; int stream_valid; #endif + int ppmd7_stat; + CPpmd7 ppmd7_context; + CPpmd7z_RangeDec range_dec; + IByteIn bytein; + struct { + const unsigned char *next_in; + int64_t avail_in; + int64_t total_in; + unsigned char *next_out; + int64_t avail_out; + int64_t total_out; + int overconsumed; + } ppstream; + int ppmd7_valid; struct archive_string_conv *sconv; char format_name[64]; @@ -718,6 +733,39 @@ decode_codec_id(const unsigned char *codecId, size_t id_size) return (id); } +static void * +ppmd_alloc(void *p, size_t size) +{ + (void)p; + return malloc(size); +} +static void +ppmd_free(void *p, void *address) +{ + (void)p; + free(address); +} +static Byte +ppmd_read(void *p) +{ + struct archive_read *a = ((IByteIn*)p)->a; + struct _7zip *zip = (struct _7zip *)(a->format->data); + Byte b; + + if (zip->ppstream.avail_in == 0) { + archive_set_error(&a->archive, ARCHIVE_ERRNO_FILE_FORMAT, + "Truncated RAR file data"); + zip->ppstream.overconsumed = 1; + return (0); + } + b = *zip->ppstream.next_in++; + zip->ppstream.avail_in--; + zip->ppstream.total_in++; + return (b); +} + +static ISzAlloc g_szalloc = { ppmd_alloc, ppmd_free }; + static int init_decompression(struct archive_read *a, struct _7zip *zip, struct _7z_folder *folder) @@ -920,10 +968,48 @@ init_decompression(struct archive_read *a, struct _7zip *zip, return (ARCHIVE_FAILED); #endif case _7Z_PPMD: - /* TODO: Can we use archive_ppmd7.c ? */ - archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, - "PPMD codec is unsupported"); - return (ARCHIVE_FAILED); + { + unsigned order; + uint32_t msize; + + if (zip->ppmd7_valid) { + __archive_ppmd7_functions.Ppmd7_Free( + &zip->ppmd7_context, &g_szalloc); + zip->ppmd7_valid = 0; + } + + if (folder->coders[0].propertiesSize < 5) { + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "Malformed PPMd parameter"); + return (ARCHIVE_FAILED); + } + order = folder->coders[0].properties[0]; + msize = archive_le32dec(&(folder->coders[0].properties[1])); + if (order < PPMD7_MIN_ORDER || order > PPMD7_MAX_ORDER || + msize < PPMD7_MIN_MEM_SIZE || msize > PPMD7_MAX_MEM_SIZE) { + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "Malformed PPMd parameter"); + return (ARCHIVE_FAILED); + } + __archive_ppmd7_functions.Ppmd7_Construct(&zip->ppmd7_context); + r = __archive_ppmd7_functions.Ppmd7_Alloc( + &zip->ppmd7_context, msize, &g_szalloc); + if (r == 0) { + archive_set_error(&a->archive, ENOMEM, + "Coludn't allocate memory for PPMd"); + return (ARCHIVE_FATAL); + } + __archive_ppmd7_functions.Ppmd7_Init( + &zip->ppmd7_context, order); + __archive_ppmd7_functions.Ppmd7z_RangeDec_CreateVTable( + &zip->range_dec); + zip->ppmd7_valid = 1; + zip->ppmd7_stat = 0; + zip->ppstream.overconsumed = 0; + zip->ppstream.total_in = 0; + zip->ppstream.total_out = 0; + break; + } case _7Z_X86: case _7Z_POWERPC: case _7Z_IA64: @@ -1035,9 +1121,77 @@ decompress(struct archive_read *a, struct _7zip *zip, *outbytes = avail_out - zip->stream.avail_out; break; #endif + case _7Z_PPMD: + { + uint64_t flush_bytes; + + if (!zip->ppmd7_valid || zip->ppmd7_stat < 0 || + avail_in < 0 || avail_out <= 0) { + archive_set_error(&(a->archive), + ARCHIVE_ERRNO_MISC, + "Decompression internal error"); + return (ARCHIVE_FAILED); + } + zip->ppstream.next_in = b; + zip->ppstream.avail_in = avail_in; + zip->ppstream.next_out = buff; + zip->ppstream.avail_out = avail_out; + if (zip->ppmd7_stat == 0) { + zip->bytein.a = a; + zip->bytein.Read = &ppmd_read; + zip->range_dec.Stream = &zip->bytein; + r = __archive_ppmd7_functions.Ppmd7z_RangeDec_Init( + &(zip->range_dec)); + if (r == 0) { + zip->ppmd7_stat = -1; + archive_set_error(&a->archive, + ARCHIVE_ERRNO_MISC, + "Failed to initialize PPMd range decorder"); + return (ARCHIVE_FAILED); + } + if (zip->ppstream.overconsumed) { + zip->ppmd7_stat = -1; + return (ARCHIVE_FAILED); + } + zip->ppmd7_stat = 1; + } + + if (avail_in == 0) + /* XXX Flush out remaining decoded data XXX */ + flush_bytes = zip->unpack_stream_bytes_remaining; + else + flush_bytes = 0; + + do { + int sym; + + sym = __archive_ppmd7_functions.Ppmd7_DecodeSymbol( + &(zip->ppmd7_context), &(zip->range_dec.p)); + if (sym < 0) { + zip->ppmd7_stat = -1; + archive_set_error(&a->archive, + ARCHIVE_ERRNO_FILE_FORMAT, + "Failed to decode PPMd"); + return (ARCHIVE_FAILED); + } + if (zip->ppstream.overconsumed) { + zip->ppmd7_stat = -1; + return (ARCHIVE_FAILED); + } + *zip->ppstream.next_out++ = (unsigned char)sym; + zip->ppstream.avail_out--; + zip->ppstream.total_out++; + if (flush_bytes) + flush_bytes--; + } while (zip->ppstream.avail_out && + (zip->ppstream.avail_in || flush_bytes)); + + *used = avail_in - zip->ppstream.avail_in; + *outbytes = avail_out - zip->ppstream.avail_out; + break; + } default: - archive_set_error(&(a->archive), - ARCHIVE_ERRNO_MISC, + archive_set_error(&(a->archive), ARCHIVE_ERRNO_MISC, "Decompression internal error"); return (ARCHIVE_FAILED); } @@ -1061,6 +1215,7 @@ free_decompression(struct archive_read *a, struct _7zip *zip) "Failed to clean up bzip2 decompressor"); r = ARCHIVE_FATAL; } + zip->bzstream_valid = 0; } #endif #ifdef HAVE_ZLIB_H @@ -1071,8 +1226,14 @@ free_decompression(struct archive_read *a, struct _7zip *zip) "Failed to clean up zlib decompressor"); r = ARCHIVE_FATAL; } + zip->stream_valid = 0; } #endif + if (zip->ppmd7_valid) { + __archive_ppmd7_functions.Ppmd7_Free( + &zip->ppmd7_context, &g_szalloc); + zip->ppmd7_valid = 0; + } return (r); } diff --git a/libarchive/test/test_read_format_7zip.c b/libarchive/test/test_read_format_7zip.c index 64cc6c442..ef4496390 100644 --- a/libarchive/test/test_read_format_7zip.c +++ b/libarchive/test/test_read_format_7zip.c @@ -445,7 +445,7 @@ test_delta_lzma(const char *refname) struct archive *a; size_t remaining; ssize_t bytes; - char buff[128]; + char buff[1024]; extract_reference_file(refname); assert((a = archive_read_new()) != NULL); @@ -499,7 +499,7 @@ test_bcj_lzma(const char *refname) struct archive *a; size_t remaining; ssize_t bytes; - char buff[128]; + char buff[1024]; extract_reference_file(refname); assert((a = archive_read_new()) != NULL); @@ -543,6 +543,61 @@ test_bcj_lzma(const char *refname) assertEqualInt(ARCHIVE_OK, archive_read_free(a)); } +/* + * Extract a file compressed with PPMd. + */ +static void +test_ppmd() +{ + const char *refname = "test_read_format_7zip_ppmd.7z"; + struct archive_entry *ae; + struct archive *a; + size_t remaining; + ssize_t bytes; + char buff[1024]; + + extract_reference_file(refname); + assert((a = archive_read_new()) != NULL); + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a)); + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a)); + assertEqualIntA(a, ARCHIVE_OK, + archive_read_open_filename(a, refname, 10240)); + + /* Verify regular file1. */ + assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae)); + assertEqualInt((AE_IFREG | 0777), archive_entry_mode(ae)); + assertEqualString("ppmd_test.txt", archive_entry_pathname(ae)); + assertEqualInt(1322464589, archive_entry_mtime(ae)); + assertEqualInt(102400, archive_entry_size(ae)); + remaining = (size_t)archive_entry_size(ae); + while (remaining) { + if (remaining < sizeof(buff)) + assertEqualInt(remaining, + bytes = archive_read_data(a, buff, sizeof(buff))); + else + assertEqualInt(sizeof(buff), + bytes = archive_read_data(a, buff, sizeof(buff))); + if (bytes > 0) + remaining -= bytes; + else + break; + } + assertEqualInt(0, remaining); + + assertEqualInt(1, archive_file_count(a)); + + /* End of archive. */ + assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae)); + + /* Verify archive format. */ + assertEqualIntA(a, ARCHIVE_COMPRESSION_NONE, archive_compression(a)); + assertEqualIntA(a, ARCHIVE_FORMAT_7ZIP, archive_format(a)); + + /* Close the archive. */ + assertEqualInt(ARCHIVE_OK, archive_read_close(a)); + assertEqualInt(ARCHIVE_OK, archive_read_free(a)); +} + DEFINE_TEST(test_read_format_7zip) { struct archive *a; @@ -550,6 +605,7 @@ DEFINE_TEST(test_read_format_7zip) test_copy(); test_empty_archive(); test_empty_file(); + test_ppmd(); assert((a = archive_read_new()) != NULL); diff --git a/libarchive/test/test_read_format_7zip_ppmd.7z.uu b/libarchive/test/test_read_format_7zip_ppmd.7z.uu new file mode 100644 index 000000000..8934e1a33 --- /dev/null +++ b/libarchive/test/test_read_format_7zip_ppmd.7z.uu @@ -0,0 +1,235 @@ +begin 644 test_read_format_7zip_ppmd.7z +M-WJ\KR<<``-Q+\5:*"@```````!=`````````!T)14P`.^3!O)7W=A;\1%9, +MO)/T"`%@Y;.;TZK)6]C+S(8'$-004/1D!/,C,%97V6&S@CZ,U[8T^ZPP$X\Q +MT1B[6!FA$C^9_%61;]CN(!CS4<[,#:#/4(8Z([W5#NS&Y@2N'3]CZD@:G/-6 +M*SLN!2\GRD22_U\ZO4Y%11"-W:M.\$P=WU^PR[GKMA[65#8+LN[,GZU-.O;E +MT!R#!.<#S9==5#H;3N`@+X7ZI7Y%&2NU]#ACBW?#O?,F:0#Q9-3ZZL%V%&9)")/O0#;Y`ERR*'#+W +M']$)-E\['NQ`D+7V<4:'4&A)RGS'C>O$2723_A19>9;,$\2C0JSF4UU1"T(U_'3]MZO4WCT/KJ!WNF7\9M> 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