erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1 | /* unzip.c -- IO for uncompress .zip files using zlib |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2 | Version 1.1, February 14h, 2010 |
| 3 | part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 4 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 5 | Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 6 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 7 | Modifications of Unzip for Zip64 |
| 8 | Copyright (C) 2007-2008 Even Rouault |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 9 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 10 | Modifications for Zip64 support on both zip and unzip |
| 11 | Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) |
| 12 | |
| 13 | For more info read MiniZip_info.txt |
| 14 | |
| 15 | |
| 16 | ------------------------------------------------------------------------------------ |
| 17 | Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of |
| 18 | compatibility with older software. The following is from the original crypt.c. |
| 19 | Code woven in by Terry Thorsen 1/2003. |
| 20 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 21 | Copyright (c) 1990-2000 Info-ZIP. All rights reserved. |
| 22 | |
| 23 | See the accompanying file LICENSE, version 2000-Apr-09 or later |
| 24 | (the contents of which are also included in zip.h) for terms of use. |
| 25 | If, for some reason, all these files are missing, the Info-ZIP license |
| 26 | also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 27 | |
| 28 | crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h] |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 29 | |
| 30 | The encryption/decryption parts of this source code (as opposed to the |
| 31 | non-echoing password parts) were originally written in Europe. The |
| 32 | whole source package can be freely distributed, including from the USA. |
| 33 | (Prior to January 2000, re-export from the US was a violation of US law.) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 34 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 35 | This encryption code is a direct transcription of the algorithm from |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 36 | Roger Schlafly, described by Phil Katz in the file appnote.txt. This |
| 37 | file (appnote.txt) is distributed with the PKZIP program (even in the |
| 38 | version without encryption capabilities). |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 39 | |
| 40 | ------------------------------------------------------------------------------------ |
| 41 | |
| 42 | Changes in unzip.c |
| 43 | |
| 44 | 2007-2008 - Even Rouault - Addition of cpl_unzGetCurrentFileZStreamPos |
| 45 | 2007-2008 - Even Rouault - Decoration of symbol names unz* -> cpl_unz* |
| 46 | 2007-2008 - Even Rouault - Remove old C style function prototypes |
| 47 | 2007-2008 - Even Rouault - Add unzip support for ZIP64 |
| 48 | |
| 49 | Copyright (C) 2007-2008 Even Rouault |
| 50 | |
| 51 | |
| 52 | 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). |
| 53 | Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G |
| 54 | should only read the compressed/uncompressed size from the Zip64 format if |
| 55 | the size from normal header was 0xFFFFFFFF |
| 56 | Oct-2009 - Mathias Svensson - Applied some bug fixes from paches recived from Gilles Vollant |
| 57 | Oct-2009 - Mathias Svensson - Applied support to unzip files with compression mathod BZIP2 (bzip2 lib is required) |
| 58 | Patch created by Daniel Borca |
| 59 | |
| 60 | Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer |
| 61 | |
| 62 | Copyright (C) 1998 - 2010 Gilles Vollant, Even Rouault, Mathias Svensson |
| 63 | |
| 64 | */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 65 | |
| 66 | |
| 67 | #include <stdio.h> |
| 68 | #include <stdlib.h> |
| 69 | #include <string.h> |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 70 | |
erikkay@google.com | 8c6279b | 2009-01-29 00:06:47 +0000 | [diff] [blame] | 71 | #include "third_party/zlib/zlib.h" |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 72 | #include "unzip.h" |
| 73 | |
| 74 | #ifdef STDC |
| 75 | # include <stddef.h> |
| 76 | # include <string.h> |
| 77 | # include <stdlib.h> |
| 78 | #endif |
| 79 | #ifdef NO_ERRNO_H |
| 80 | extern int errno; |
| 81 | #else |
| 82 | # include <errno.h> |
| 83 | #endif |
| 84 | |
| 85 | |
| 86 | #ifndef local |
| 87 | # define local static |
| 88 | #endif |
| 89 | /* compile with -Dlocal if your debugger can't find static symbols */ |
| 90 | |
| 91 | |
| 92 | #ifndef CASESENSITIVITYDEFAULT_NO |
| 93 | # if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) |
| 94 | # define CASESENSITIVITYDEFAULT_NO |
| 95 | # endif |
| 96 | #endif |
| 97 | |
| 98 | |
| 99 | #ifndef UNZ_BUFSIZE |
| 100 | #define UNZ_BUFSIZE (16384) |
| 101 | #endif |
| 102 | |
| 103 | #ifndef UNZ_MAXFILENAMEINZIP |
| 104 | #define UNZ_MAXFILENAMEINZIP (256) |
| 105 | #endif |
| 106 | |
| 107 | #ifndef ALLOC |
| 108 | # define ALLOC(size) (malloc(size)) |
| 109 | #endif |
| 110 | #ifndef TRYFREE |
| 111 | # define TRYFREE(p) {if (p) free(p);} |
| 112 | #endif |
| 113 | |
| 114 | #define SIZECENTRALDIRITEM (0x2e) |
| 115 | #define SIZEZIPLOCALHEADER (0x1e) |
| 116 | |
| 117 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 118 | const char unz_copyright[] = |
| 119 | " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; |
| 120 | |
| 121 | /* unz_file_info_interntal contain internal info about a file in zipfile*/ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 122 | typedef struct unz_file_info64_internal_s |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 123 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 124 | ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */ |
| 125 | } unz_file_info64_internal; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 126 | |
| 127 | |
| 128 | /* file_in_zip_read_info_s contain internal information about a file in zipfile, |
| 129 | when reading and decompress it */ |
| 130 | typedef struct |
| 131 | { |
| 132 | char *read_buffer; /* internal buffer for compressed data */ |
| 133 | z_stream stream; /* zLib stream structure for inflate */ |
| 134 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 135 | #ifdef HAVE_BZIP2 |
| 136 | bz_stream bstream; /* bzLib stream structure for bziped */ |
| 137 | #endif |
| 138 | |
| 139 | ZPOS64_T pos_in_zipfile; /* position in byte on the zipfile, for fseek*/ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 140 | uLong stream_initialised; /* flag set if stream structure is initialised*/ |
| 141 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 142 | ZPOS64_T offset_local_extrafield;/* offset of the local extra field */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 143 | uInt size_local_extrafield;/* size of the local extra field */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 144 | ZPOS64_T pos_local_extrafield; /* position in the local extra field in read*/ |
| 145 | ZPOS64_T total_out_64; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 146 | |
| 147 | uLong crc32; /* crc32 of all data uncompressed */ |
| 148 | uLong crc32_wait; /* crc32 we must obtain after decompress all */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 149 | ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */ |
| 150 | ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/ |
| 151 | zlib_filefunc64_32_def z_filefunc; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 152 | voidpf filestream; /* io structore of the zipfile */ |
| 153 | uLong compression_method; /* compression method (0==store) */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 154 | ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 155 | int raw; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 156 | } file_in_zip64_read_info_s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 157 | |
| 158 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 159 | /* unz64_s contain internal information about the zipfile |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 160 | */ |
| 161 | typedef struct |
| 162 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 163 | zlib_filefunc64_32_def z_filefunc; |
| 164 | int is64bitOpenFunction; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 165 | voidpf filestream; /* io structore of the zipfile */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 166 | unz_global_info64 gi; /* public global information */ |
| 167 | ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ |
| 168 | ZPOS64_T num_file; /* number of the current file in the zipfile*/ |
| 169 | ZPOS64_T pos_in_central_dir; /* pos of the current file in the central dir*/ |
| 170 | ZPOS64_T current_file_ok; /* flag about the usability of the current file*/ |
| 171 | ZPOS64_T central_pos; /* position of the beginning of the central dir*/ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 172 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 173 | ZPOS64_T size_central_dir; /* size of the central directory */ |
| 174 | ZPOS64_T offset_central_dir; /* offset of start of central directory with |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 175 | respect to the starting disk number */ |
| 176 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 177 | unz_file_info64 cur_file_info; /* public info about the current file in zip*/ |
| 178 | unz_file_info64_internal cur_file_info_internal; /* private info about it*/ |
| 179 | file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 180 | file if we are decompressing it */ |
| 181 | int encrypted; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 182 | |
| 183 | int isZip64; |
| 184 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 185 | # ifndef NOUNCRYPT |
| 186 | unsigned long keys[3]; /* keys defining the pseudo-random sequence */ |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 187 | const z_crc_t* pcrc_32_tab; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 188 | # endif |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 189 | } unz64_s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 190 | |
| 191 | |
| 192 | #ifndef NOUNCRYPT |
| 193 | #include "crypt.h" |
| 194 | #endif |
| 195 | |
| 196 | /* =========================================================================== |
| 197 | Read a byte from a gz_stream; update next_in and avail_in. Return EOF |
| 198 | for end of file. |
mark | 13dc246 | 2017-02-14 22:15:29 -0800 | [diff] [blame] | 199 | IN assertion: the stream s has been successfully opened for reading. |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 200 | */ |
| 201 | |
| 202 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 203 | local int unz64local_getByte OF(( |
| 204 | const zlib_filefunc64_32_def* pzlib_filefunc_def, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 205 | voidpf filestream, |
| 206 | int *pi)); |
| 207 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 208 | local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 209 | { |
| 210 | unsigned char c; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 211 | int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 212 | if (err==1) |
| 213 | { |
| 214 | *pi = (int)c; |
| 215 | return UNZ_OK; |
| 216 | } |
| 217 | else |
| 218 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 219 | if (ZERROR64(*pzlib_filefunc_def,filestream)) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 220 | return UNZ_ERRNO; |
| 221 | else |
| 222 | return UNZ_EOF; |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | |
| 227 | /* =========================================================================== |
| 228 | Reads a long in LSB order from the given gz_stream. Sets |
| 229 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 230 | local int unz64local_getShort OF(( |
| 231 | const zlib_filefunc64_32_def* pzlib_filefunc_def, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 232 | voidpf filestream, |
| 233 | uLong *pX)); |
| 234 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 235 | local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, |
| 236 | voidpf filestream, |
| 237 | uLong *pX) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 238 | { |
| 239 | uLong x ; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 240 | int i = 0; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 241 | int err; |
| 242 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 243 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 244 | x = (uLong)i; |
| 245 | |
| 246 | if (err==UNZ_OK) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 247 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 248 | x |= ((uLong)i)<<8; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 249 | |
| 250 | if (err==UNZ_OK) |
| 251 | *pX = x; |
| 252 | else |
| 253 | *pX = 0; |
| 254 | return err; |
| 255 | } |
| 256 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 257 | local int unz64local_getLong OF(( |
| 258 | const zlib_filefunc64_32_def* pzlib_filefunc_def, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 259 | voidpf filestream, |
| 260 | uLong *pX)); |
| 261 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 262 | local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, |
| 263 | voidpf filestream, |
| 264 | uLong *pX) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 265 | { |
| 266 | uLong x ; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 267 | int i = 0; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 268 | int err; |
| 269 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 270 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 271 | x = (uLong)i; |
| 272 | |
| 273 | if (err==UNZ_OK) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 274 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 275 | x |= ((uLong)i)<<8; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 276 | |
| 277 | if (err==UNZ_OK) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 278 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 279 | x |= ((uLong)i)<<16; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 280 | |
| 281 | if (err==UNZ_OK) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 282 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 283 | x += ((uLong)i)<<24; |
| 284 | |
| 285 | if (err==UNZ_OK) |
| 286 | *pX = x; |
| 287 | else |
| 288 | *pX = 0; |
| 289 | return err; |
| 290 | } |
| 291 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 292 | local int unz64local_getLong64 OF(( |
| 293 | const zlib_filefunc64_32_def* pzlib_filefunc_def, |
| 294 | voidpf filestream, |
| 295 | ZPOS64_T *pX)); |
| 296 | |
| 297 | |
| 298 | local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, |
| 299 | voidpf filestream, |
| 300 | ZPOS64_T *pX) |
| 301 | { |
| 302 | ZPOS64_T x ; |
| 303 | int i = 0; |
| 304 | int err; |
| 305 | |
| 306 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 307 | x = (ZPOS64_T)i; |
| 308 | |
| 309 | if (err==UNZ_OK) |
| 310 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 311 | x |= ((ZPOS64_T)i)<<8; |
| 312 | |
| 313 | if (err==UNZ_OK) |
| 314 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 315 | x |= ((ZPOS64_T)i)<<16; |
| 316 | |
| 317 | if (err==UNZ_OK) |
| 318 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 319 | x |= ((ZPOS64_T)i)<<24; |
| 320 | |
| 321 | if (err==UNZ_OK) |
| 322 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 323 | x |= ((ZPOS64_T)i)<<32; |
| 324 | |
| 325 | if (err==UNZ_OK) |
| 326 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 327 | x |= ((ZPOS64_T)i)<<40; |
| 328 | |
| 329 | if (err==UNZ_OK) |
| 330 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 331 | x |= ((ZPOS64_T)i)<<48; |
| 332 | |
| 333 | if (err==UNZ_OK) |
| 334 | err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 335 | x |= ((ZPOS64_T)i)<<56; |
| 336 | |
| 337 | if (err==UNZ_OK) |
| 338 | *pX = x; |
| 339 | else |
| 340 | *pX = 0; |
| 341 | return err; |
| 342 | } |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 343 | |
| 344 | /* My own strcmpi / strcasecmp */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 345 | local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 346 | { |
| 347 | for (;;) |
| 348 | { |
| 349 | char c1=*(fileName1++); |
| 350 | char c2=*(fileName2++); |
| 351 | if ((c1>='a') && (c1<='z')) |
| 352 | c1 -= 0x20; |
| 353 | if ((c2>='a') && (c2<='z')) |
| 354 | c2 -= 0x20; |
| 355 | if (c1=='\0') |
| 356 | return ((c2=='\0') ? 0 : -1); |
| 357 | if (c2=='\0') |
| 358 | return 1; |
| 359 | if (c1<c2) |
| 360 | return -1; |
| 361 | if (c1>c2) |
| 362 | return 1; |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | |
| 367 | #ifdef CASESENSITIVITYDEFAULT_NO |
| 368 | #define CASESENSITIVITYDEFAULTVALUE 2 |
| 369 | #else |
| 370 | #define CASESENSITIVITYDEFAULTVALUE 1 |
| 371 | #endif |
| 372 | |
| 373 | #ifndef STRCMPCASENOSENTIVEFUNCTION |
| 374 | #define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal |
| 375 | #endif |
| 376 | |
| 377 | /* |
| 378 | Compare two filename (fileName1,fileName2). |
| 379 | If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) |
| 380 | If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi |
| 381 | or strcasecmp) |
| 382 | If iCaseSenisivity = 0, case sensitivity is defaut of your operating system |
| 383 | (like 1 on Unix, 2 on Windows) |
| 384 | |
| 385 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 386 | extern int ZEXPORT unzStringFileNameCompare (const char* fileName1, |
| 387 | const char* fileName2, |
| 388 | int iCaseSensitivity) |
| 389 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 390 | { |
| 391 | if (iCaseSensitivity==0) |
| 392 | iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE; |
| 393 | |
| 394 | if (iCaseSensitivity==1) |
| 395 | return strcmp(fileName1,fileName2); |
| 396 | |
| 397 | return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2); |
| 398 | } |
| 399 | |
| 400 | #ifndef BUFREADCOMMENT |
| 401 | #define BUFREADCOMMENT (0x400) |
| 402 | #endif |
| 403 | |
| 404 | /* |
| 405 | Locate the Central directory of a zipfile (at the end, just before |
| 406 | the global comment) |
| 407 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 408 | local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); |
| 409 | local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 410 | { |
| 411 | unsigned char* buf; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 412 | ZPOS64_T uSizeFile; |
| 413 | ZPOS64_T uBackRead; |
| 414 | ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ |
| 415 | ZPOS64_T uPosFound=0; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 416 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 417 | if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 418 | return 0; |
| 419 | |
| 420 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 421 | uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 422 | |
| 423 | if (uMaxBack>uSizeFile) |
| 424 | uMaxBack = uSizeFile; |
| 425 | |
| 426 | buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); |
| 427 | if (buf==NULL) |
| 428 | return 0; |
| 429 | |
| 430 | uBackRead = 4; |
| 431 | while (uBackRead<uMaxBack) |
| 432 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 433 | uLong uReadSize; |
| 434 | ZPOS64_T uReadPos ; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 435 | int i; |
| 436 | if (uBackRead+BUFREADCOMMENT>uMaxBack) |
| 437 | uBackRead = uMaxBack; |
| 438 | else |
| 439 | uBackRead+=BUFREADCOMMENT; |
| 440 | uReadPos = uSizeFile-uBackRead ; |
| 441 | |
| 442 | uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 443 | (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); |
| 444 | if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 445 | break; |
| 446 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 447 | if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 448 | break; |
| 449 | |
| 450 | for (i=(int)uReadSize-3; (i--)>0;) |
| 451 | if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && |
| 452 | ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) |
| 453 | { |
| 454 | uPosFound = uReadPos+i; |
| 455 | break; |
| 456 | } |
| 457 | |
| 458 | if (uPosFound!=0) |
| 459 | break; |
| 460 | } |
| 461 | TRYFREE(buf); |
| 462 | return uPosFound; |
| 463 | } |
| 464 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 465 | |
| 466 | /* |
| 467 | Locate the Central directory 64 of a zipfile (at the end, just before |
| 468 | the global comment) |
| 469 | */ |
| 470 | local ZPOS64_T unz64local_SearchCentralDir64 OF(( |
| 471 | const zlib_filefunc64_32_def* pzlib_filefunc_def, |
| 472 | voidpf filestream)); |
| 473 | |
| 474 | local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, |
| 475 | voidpf filestream) |
| 476 | { |
| 477 | unsigned char* buf; |
| 478 | ZPOS64_T uSizeFile; |
| 479 | ZPOS64_T uBackRead; |
| 480 | ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ |
| 481 | ZPOS64_T uPosFound=0; |
| 482 | uLong uL; |
| 483 | ZPOS64_T relativeOffset; |
| 484 | |
| 485 | if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) |
| 486 | return 0; |
| 487 | |
| 488 | |
| 489 | uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); |
| 490 | |
| 491 | if (uMaxBack>uSizeFile) |
| 492 | uMaxBack = uSizeFile; |
| 493 | |
| 494 | buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); |
| 495 | if (buf==NULL) |
| 496 | return 0; |
| 497 | |
| 498 | uBackRead = 4; |
| 499 | while (uBackRead<uMaxBack) |
| 500 | { |
| 501 | uLong uReadSize; |
| 502 | ZPOS64_T uReadPos; |
| 503 | int i; |
| 504 | if (uBackRead+BUFREADCOMMENT>uMaxBack) |
| 505 | uBackRead = uMaxBack; |
| 506 | else |
| 507 | uBackRead+=BUFREADCOMMENT; |
| 508 | uReadPos = uSizeFile-uBackRead ; |
| 509 | |
| 510 | uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? |
| 511 | (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); |
| 512 | if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 513 | break; |
| 514 | |
| 515 | if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) |
| 516 | break; |
| 517 | |
| 518 | for (i=(int)uReadSize-3; (i--)>0;) |
| 519 | if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && |
| 520 | ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07)) |
| 521 | { |
| 522 | uPosFound = uReadPos+i; |
| 523 | break; |
| 524 | } |
| 525 | |
| 526 | if (uPosFound!=0) |
| 527 | break; |
| 528 | } |
| 529 | TRYFREE(buf); |
| 530 | if (uPosFound == 0) |
| 531 | return 0; |
| 532 | |
| 533 | /* Zip64 end of central directory locator */ |
| 534 | if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 535 | return 0; |
| 536 | |
| 537 | /* the signature, already checked */ |
| 538 | if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) |
| 539 | return 0; |
| 540 | |
| 541 | /* number of the disk with the start of the zip64 end of central directory */ |
| 542 | if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) |
| 543 | return 0; |
| 544 | if (uL != 0) |
| 545 | return 0; |
| 546 | |
| 547 | /* relative offset of the zip64 end of central directory record */ |
| 548 | if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK) |
| 549 | return 0; |
| 550 | |
| 551 | /* total number of disks */ |
| 552 | if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) |
| 553 | return 0; |
| 554 | if (uL != 1) |
| 555 | return 0; |
| 556 | |
| 557 | /* Goto end of central directory record */ |
| 558 | if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 559 | return 0; |
| 560 | |
| 561 | /* the signature */ |
| 562 | if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) |
| 563 | return 0; |
| 564 | |
| 565 | if (uL != 0x06064b50) |
| 566 | return 0; |
| 567 | |
| 568 | return relativeOffset; |
| 569 | } |
| 570 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 571 | /* |
| 572 | Open a Zip file. path contain the full pathname (by example, |
| 573 | on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer |
| 574 | "zlib/zlib114.zip". |
| 575 | If the zipfile cannot be opened (file doesn't exist or in not valid), the |
| 576 | return value is NULL. |
| 577 | Else, the return value is a unzFile Handle, usable with other function |
| 578 | of this unzip package. |
| 579 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 580 | local unzFile unzOpenInternal (const void *path, |
| 581 | zlib_filefunc64_32_def* pzlib_filefunc64_32_def, |
| 582 | int is64bitOpenFunction) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 583 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 584 | unz64_s us; |
| 585 | unz64_s *s; |
| 586 | ZPOS64_T central_pos; |
| 587 | uLong uL; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 588 | |
| 589 | uLong number_disk; /* number of the current dist, used for |
| 590 | spaning ZIP, unsupported, always 0*/ |
| 591 | uLong number_disk_with_CD; /* number the the disk with central dir, used |
| 592 | for spaning ZIP, unsupported, always 0*/ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 593 | ZPOS64_T number_entry_CD; /* total number of entries in |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 594 | the central dir |
| 595 | (same than number_entry on nospan) */ |
| 596 | |
| 597 | int err=UNZ_OK; |
| 598 | |
| 599 | if (unz_copyright[0]!=' ') |
| 600 | return NULL; |
| 601 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 602 | us.z_filefunc.zseek32_file = NULL; |
| 603 | us.z_filefunc.ztell32_file = NULL; |
| 604 | if (pzlib_filefunc64_32_def==NULL) |
| 605 | fill_fopen64_filefunc(&us.z_filefunc.zfile_func64); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 606 | else |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 607 | us.z_filefunc = *pzlib_filefunc64_32_def; |
| 608 | us.is64bitOpenFunction = is64bitOpenFunction; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 609 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 610 | |
| 611 | |
| 612 | us.filestream = ZOPEN64(us.z_filefunc, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 613 | path, |
| 614 | ZLIB_FILEFUNC_MODE_READ | |
| 615 | ZLIB_FILEFUNC_MODE_EXISTING); |
| 616 | if (us.filestream==NULL) |
| 617 | return NULL; |
| 618 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 619 | central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream); |
| 620 | if (central_pos) |
| 621 | { |
| 622 | uLong uS; |
| 623 | ZPOS64_T uL64; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 624 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 625 | us.isZip64 = 1; |
| 626 | |
| 627 | if (ZSEEK64(us.z_filefunc, us.filestream, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 628 | central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 629 | err=UNZ_ERRNO; |
| 630 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 631 | /* the signature, already checked */ |
| 632 | if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) |
| 633 | err=UNZ_ERRNO; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 634 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 635 | /* size of zip64 end of central directory record */ |
| 636 | if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK) |
| 637 | err=UNZ_ERRNO; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 638 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 639 | /* version made by */ |
| 640 | if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK) |
| 641 | err=UNZ_ERRNO; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 642 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 643 | /* version needed to extract */ |
| 644 | if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK) |
| 645 | err=UNZ_ERRNO; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 646 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 647 | /* number of this disk */ |
| 648 | if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) |
| 649 | err=UNZ_ERRNO; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 650 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 651 | /* number of the disk with the start of the central directory */ |
| 652 | if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) |
| 653 | err=UNZ_ERRNO; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 654 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 655 | /* total number of entries in the central directory on this disk */ |
| 656 | if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK) |
| 657 | err=UNZ_ERRNO; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 658 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 659 | /* total number of entries in the central directory */ |
| 660 | if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK) |
| 661 | err=UNZ_ERRNO; |
| 662 | |
| 663 | if ((number_entry_CD!=us.gi.number_entry) || |
| 664 | (number_disk_with_CD!=0) || |
| 665 | (number_disk!=0)) |
| 666 | err=UNZ_BADZIPFILE; |
| 667 | |
| 668 | /* size of the central directory */ |
| 669 | if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK) |
| 670 | err=UNZ_ERRNO; |
| 671 | |
| 672 | /* offset of start of central directory with respect to the |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 673 | starting disk number */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 674 | if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK) |
| 675 | err=UNZ_ERRNO; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 676 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 677 | us.gi.size_comment = 0; |
| 678 | } |
| 679 | else |
| 680 | { |
| 681 | central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream); |
| 682 | if (central_pos==0) |
| 683 | err=UNZ_ERRNO; |
| 684 | |
| 685 | us.isZip64 = 0; |
| 686 | |
| 687 | if (ZSEEK64(us.z_filefunc, us.filestream, |
| 688 | central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 689 | err=UNZ_ERRNO; |
| 690 | |
| 691 | /* the signature, already checked */ |
| 692 | if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) |
| 693 | err=UNZ_ERRNO; |
| 694 | |
| 695 | /* number of this disk */ |
| 696 | if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) |
| 697 | err=UNZ_ERRNO; |
| 698 | |
| 699 | /* number of the disk with the start of the central directory */ |
| 700 | if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) |
| 701 | err=UNZ_ERRNO; |
| 702 | |
| 703 | /* total number of entries in the central dir on this disk */ |
| 704 | if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) |
| 705 | err=UNZ_ERRNO; |
| 706 | us.gi.number_entry = uL; |
| 707 | |
| 708 | /* total number of entries in the central dir */ |
| 709 | if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) |
| 710 | err=UNZ_ERRNO; |
| 711 | number_entry_CD = uL; |
| 712 | |
| 713 | if ((number_entry_CD!=us.gi.number_entry) || |
| 714 | (number_disk_with_CD!=0) || |
| 715 | (number_disk!=0)) |
| 716 | err=UNZ_BADZIPFILE; |
| 717 | |
| 718 | /* size of the central directory */ |
| 719 | if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) |
| 720 | err=UNZ_ERRNO; |
| 721 | us.size_central_dir = uL; |
| 722 | |
| 723 | /* offset of start of central directory with respect to the |
| 724 | starting disk number */ |
| 725 | if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) |
| 726 | err=UNZ_ERRNO; |
| 727 | us.offset_central_dir = uL; |
| 728 | |
| 729 | /* zipfile comment length */ |
| 730 | if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK) |
| 731 | err=UNZ_ERRNO; |
| 732 | } |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 733 | |
| 734 | if ((central_pos<us.offset_central_dir+us.size_central_dir) && |
| 735 | (err==UNZ_OK)) |
| 736 | err=UNZ_BADZIPFILE; |
| 737 | |
| 738 | if (err!=UNZ_OK) |
| 739 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 740 | ZCLOSE64(us.z_filefunc, us.filestream); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 741 | return NULL; |
| 742 | } |
| 743 | |
| 744 | us.byte_before_the_zipfile = central_pos - |
| 745 | (us.offset_central_dir+us.size_central_dir); |
| 746 | us.central_pos = central_pos; |
| 747 | us.pfile_in_zip_read = NULL; |
| 748 | us.encrypted = 0; |
| 749 | |
| 750 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 751 | s=(unz64_s*)ALLOC(sizeof(unz64_s)); |
| 752 | if( s != NULL) |
| 753 | { |
| 754 | *s=us; |
| 755 | unzGoToFirstFile((unzFile)s); |
| 756 | } |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 757 | return (unzFile)s; |
| 758 | } |
| 759 | |
| 760 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 761 | extern unzFile ZEXPORT unzOpen2 (const char *path, |
| 762 | zlib_filefunc_def* pzlib_filefunc32_def) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 763 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 764 | if (pzlib_filefunc32_def != NULL) |
| 765 | { |
| 766 | zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; |
| 767 | fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def); |
| 768 | return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0); |
| 769 | } |
| 770 | else |
| 771 | return unzOpenInternal(path, NULL, 0); |
| 772 | } |
| 773 | |
| 774 | extern unzFile ZEXPORT unzOpen2_64 (const void *path, |
| 775 | zlib_filefunc64_def* pzlib_filefunc_def) |
| 776 | { |
| 777 | if (pzlib_filefunc_def != NULL) |
| 778 | { |
| 779 | zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; |
| 780 | zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def; |
| 781 | zlib_filefunc64_32_def_fill.ztell32_file = NULL; |
| 782 | zlib_filefunc64_32_def_fill.zseek32_file = NULL; |
| 783 | return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1); |
| 784 | } |
| 785 | else |
| 786 | return unzOpenInternal(path, NULL, 1); |
| 787 | } |
| 788 | |
| 789 | extern unzFile ZEXPORT unzOpen (const char *path) |
| 790 | { |
| 791 | return unzOpenInternal(path, NULL, 0); |
| 792 | } |
| 793 | |
| 794 | extern unzFile ZEXPORT unzOpen64 (const void *path) |
| 795 | { |
| 796 | return unzOpenInternal(path, NULL, 1); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 797 | } |
| 798 | |
| 799 | /* |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 800 | Close a ZipFile opened with unzOpen. |
| 801 | If there is files inside the .Zip opened with unzOpenCurrentFile (see later), |
| 802 | these files MUST be closed with unzCloseCurrentFile before call unzClose. |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 803 | return UNZ_OK if there is no problem. */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 804 | extern int ZEXPORT unzClose (unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 805 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 806 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 807 | if (file==NULL) |
| 808 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 809 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 810 | |
| 811 | if (s->pfile_in_zip_read!=NULL) |
| 812 | unzCloseCurrentFile(file); |
| 813 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 814 | ZCLOSE64(s->z_filefunc, s->filestream); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 815 | TRYFREE(s); |
| 816 | return UNZ_OK; |
| 817 | } |
| 818 | |
| 819 | |
| 820 | /* |
| 821 | Write info about the ZipFile in the *pglobal_info structure. |
| 822 | No preparation of the structure is needed |
| 823 | return UNZ_OK if there is no problem. */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 824 | extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 825 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 826 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 827 | if (file==NULL) |
| 828 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 829 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 830 | *pglobal_info=s->gi; |
| 831 | return UNZ_OK; |
| 832 | } |
| 833 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 834 | extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32) |
| 835 | { |
| 836 | unz64_s* s; |
| 837 | if (file==NULL) |
| 838 | return UNZ_PARAMERROR; |
| 839 | s=(unz64_s*)file; |
| 840 | /* to do : check if number_entry is not truncated */ |
| 841 | pglobal_info32->number_entry = (uLong)s->gi.number_entry; |
| 842 | pglobal_info32->size_comment = s->gi.size_comment; |
| 843 | return UNZ_OK; |
| 844 | } |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 845 | /* |
| 846 | Translate date/time from Dos format to tm_unz (readable more easilty) |
| 847 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 848 | local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 849 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 850 | ZPOS64_T uDate; |
| 851 | uDate = (ZPOS64_T)(ulDosDate>>16); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 852 | ptm->tm_mday = (uInt)(uDate&0x1f) ; |
| 853 | ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ; |
| 854 | ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ; |
| 855 | |
| 856 | ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800); |
| 857 | ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ; |
| 858 | ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ; |
| 859 | } |
| 860 | |
| 861 | /* |
| 862 | Get Info about the current file in the zipfile, with internal only info |
| 863 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 864 | local int unz64local_GetCurrentFileInfoInternal OF((unzFile file, |
| 865 | unz_file_info64 *pfile_info, |
| 866 | unz_file_info64_internal |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 867 | *pfile_info_internal, |
| 868 | char *szFileName, |
| 869 | uLong fileNameBufferSize, |
| 870 | void *extraField, |
| 871 | uLong extraFieldBufferSize, |
| 872 | char *szComment, |
| 873 | uLong commentBufferSize)); |
| 874 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 875 | local int unz64local_GetCurrentFileInfoInternal (unzFile file, |
| 876 | unz_file_info64 *pfile_info, |
| 877 | unz_file_info64_internal |
| 878 | *pfile_info_internal, |
| 879 | char *szFileName, |
| 880 | uLong fileNameBufferSize, |
| 881 | void *extraField, |
| 882 | uLong extraFieldBufferSize, |
| 883 | char *szComment, |
| 884 | uLong commentBufferSize) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 885 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 886 | unz64_s* s; |
| 887 | unz_file_info64 file_info; |
| 888 | unz_file_info64_internal file_info_internal; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 889 | int err=UNZ_OK; |
| 890 | uLong uMagic; |
| 891 | long lSeek=0; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 892 | uLong uL; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 893 | |
| 894 | if (file==NULL) |
| 895 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 896 | s=(unz64_s*)file; |
| 897 | if (ZSEEK64(s->z_filefunc, s->filestream, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 898 | s->pos_in_central_dir+s->byte_before_the_zipfile, |
| 899 | ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 900 | err=UNZ_ERRNO; |
| 901 | |
| 902 | |
| 903 | /* we check the magic */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 904 | if (err==UNZ_OK) |
| 905 | { |
| 906 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 907 | err=UNZ_ERRNO; |
| 908 | else if (uMagic!=0x02014b50) |
| 909 | err=UNZ_BADZIPFILE; |
erikkay@google.com | 8c6279b | 2009-01-29 00:06:47 +0000 | [diff] [blame] | 910 | } |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 911 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 912 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 913 | err=UNZ_ERRNO; |
| 914 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 915 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 916 | err=UNZ_ERRNO; |
| 917 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 918 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 919 | err=UNZ_ERRNO; |
| 920 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 921 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 922 | err=UNZ_ERRNO; |
| 923 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 924 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 925 | err=UNZ_ERRNO; |
| 926 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 927 | unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 928 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 929 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 930 | err=UNZ_ERRNO; |
| 931 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 932 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) |
| 933 | err=UNZ_ERRNO; |
| 934 | file_info.compressed_size = uL; |
| 935 | |
| 936 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) |
| 937 | err=UNZ_ERRNO; |
| 938 | file_info.uncompressed_size = uL; |
| 939 | |
| 940 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 941 | err=UNZ_ERRNO; |
| 942 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 943 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 944 | err=UNZ_ERRNO; |
| 945 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 946 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 947 | err=UNZ_ERRNO; |
| 948 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 949 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 950 | err=UNZ_ERRNO; |
| 951 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 952 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 953 | err=UNZ_ERRNO; |
| 954 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 955 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 956 | err=UNZ_ERRNO; |
| 957 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 958 | // relative offset of local header |
| 959 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 960 | err=UNZ_ERRNO; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 961 | file_info_internal.offset_curfile = uL; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 962 | |
| 963 | lSeek+=file_info.size_filename; |
| 964 | if ((err==UNZ_OK) && (szFileName!=NULL)) |
| 965 | { |
| 966 | uLong uSizeRead ; |
| 967 | if (file_info.size_filename<fileNameBufferSize) |
| 968 | { |
| 969 | *(szFileName+file_info.size_filename)='\0'; |
| 970 | uSizeRead = file_info.size_filename; |
| 971 | } |
| 972 | else |
| 973 | uSizeRead = fileNameBufferSize; |
| 974 | |
| 975 | if ((file_info.size_filename>0) && (fileNameBufferSize>0)) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 976 | if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 977 | err=UNZ_ERRNO; |
| 978 | lSeek -= uSizeRead; |
| 979 | } |
| 980 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 981 | // Read extrafield |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 982 | if ((err==UNZ_OK) && (extraField!=NULL)) |
| 983 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 984 | ZPOS64_T uSizeRead ; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 985 | if (file_info.size_file_extra<extraFieldBufferSize) |
| 986 | uSizeRead = file_info.size_file_extra; |
| 987 | else |
| 988 | uSizeRead = extraFieldBufferSize; |
| 989 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 990 | if (lSeek!=0) |
| 991 | { |
| 992 | if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 993 | lSeek=0; |
| 994 | else |
| 995 | err=UNZ_ERRNO; |
erikkay@google.com | 8c6279b | 2009-01-29 00:06:47 +0000 | [diff] [blame] | 996 | } |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 997 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 998 | if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0)) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 999 | if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1000 | err=UNZ_ERRNO; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1001 | |
| 1002 | lSeek += file_info.size_file_extra - (uLong)uSizeRead; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1003 | } |
| 1004 | else |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1005 | lSeek += file_info.size_file_extra; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1006 | |
| 1007 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1008 | if ((err==UNZ_OK) && (file_info.size_file_extra != 0)) |
| 1009 | { |
| 1010 | uLong acc = 0; |
| 1011 | |
| 1012 | // since lSeek now points to after the extra field we need to move back |
| 1013 | lSeek -= file_info.size_file_extra; |
| 1014 | |
| 1015 | if (lSeek!=0) |
| 1016 | { |
| 1017 | if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) |
| 1018 | lSeek=0; |
| 1019 | else |
| 1020 | err=UNZ_ERRNO; |
| 1021 | } |
| 1022 | |
| 1023 | while(acc < file_info.size_file_extra) |
| 1024 | { |
| 1025 | uLong headerId; |
| 1026 | uLong dataSize; |
| 1027 | |
| 1028 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK) |
| 1029 | err=UNZ_ERRNO; |
| 1030 | |
| 1031 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK) |
| 1032 | err=UNZ_ERRNO; |
| 1033 | |
| 1034 | /* ZIP64 extra fields */ |
| 1035 | if (headerId == 0x0001) |
| 1036 | { |
| 1037 | uLong uL; |
| 1038 | |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 1039 | if(file_info.uncompressed_size == MAXU32) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1040 | { |
| 1041 | if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK) |
| 1042 | err=UNZ_ERRNO; |
| 1043 | } |
| 1044 | |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 1045 | if(file_info.compressed_size == MAXU32) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1046 | { |
| 1047 | if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK) |
| 1048 | err=UNZ_ERRNO; |
| 1049 | } |
| 1050 | |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 1051 | if(file_info_internal.offset_curfile == MAXU32) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1052 | { |
| 1053 | /* Relative Header offset */ |
| 1054 | if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK) |
| 1055 | err=UNZ_ERRNO; |
| 1056 | } |
| 1057 | |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 1058 | if(file_info.disk_num_start == MAXU32) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1059 | { |
| 1060 | /* Disk Start Number */ |
| 1061 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) |
| 1062 | err=UNZ_ERRNO; |
| 1063 | } |
| 1064 | |
| 1065 | } |
| 1066 | else |
| 1067 | { |
| 1068 | if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0) |
| 1069 | err=UNZ_ERRNO; |
| 1070 | } |
| 1071 | |
| 1072 | acc += 2 + 2 + dataSize; |
| 1073 | } |
| 1074 | } |
| 1075 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1076 | if ((err==UNZ_OK) && (szComment!=NULL)) |
| 1077 | { |
| 1078 | uLong uSizeRead ; |
| 1079 | if (file_info.size_file_comment<commentBufferSize) |
| 1080 | { |
| 1081 | *(szComment+file_info.size_file_comment)='\0'; |
| 1082 | uSizeRead = file_info.size_file_comment; |
| 1083 | } |
| 1084 | else |
| 1085 | uSizeRead = commentBufferSize; |
| 1086 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1087 | if (lSeek!=0) |
| 1088 | { |
| 1089 | if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1090 | lSeek=0; |
| 1091 | else |
| 1092 | err=UNZ_ERRNO; |
erikkay@google.com | 8c6279b | 2009-01-29 00:06:47 +0000 | [diff] [blame] | 1093 | } |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1094 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1095 | if ((file_info.size_file_comment>0) && (commentBufferSize>0)) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1096 | if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1097 | err=UNZ_ERRNO; |
| 1098 | lSeek+=file_info.size_file_comment - uSizeRead; |
| 1099 | } |
| 1100 | else |
| 1101 | lSeek+=file_info.size_file_comment; |
| 1102 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1103 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1104 | if ((err==UNZ_OK) && (pfile_info!=NULL)) |
| 1105 | *pfile_info=file_info; |
| 1106 | |
| 1107 | if ((err==UNZ_OK) && (pfile_info_internal!=NULL)) |
| 1108 | *pfile_info_internal=file_info_internal; |
| 1109 | |
| 1110 | return err; |
| 1111 | } |
| 1112 | |
| 1113 | |
| 1114 | |
| 1115 | /* |
| 1116 | Write info about the ZipFile in the *pglobal_info structure. |
| 1117 | No preparation of the structure is needed |
| 1118 | return UNZ_OK if there is no problem. |
| 1119 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1120 | extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file, |
| 1121 | unz_file_info64 * pfile_info, |
| 1122 | char * szFileName, uLong fileNameBufferSize, |
| 1123 | void *extraField, uLong extraFieldBufferSize, |
| 1124 | char* szComment, uLong commentBufferSize) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1125 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1126 | return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1127 | szFileName,fileNameBufferSize, |
| 1128 | extraField,extraFieldBufferSize, |
| 1129 | szComment,commentBufferSize); |
| 1130 | } |
| 1131 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1132 | extern int ZEXPORT unzGetCurrentFileInfo (unzFile file, |
| 1133 | unz_file_info * pfile_info, |
| 1134 | char * szFileName, uLong fileNameBufferSize, |
| 1135 | void *extraField, uLong extraFieldBufferSize, |
| 1136 | char* szComment, uLong commentBufferSize) |
| 1137 | { |
| 1138 | int err; |
| 1139 | unz_file_info64 file_info64; |
| 1140 | err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL, |
| 1141 | szFileName,fileNameBufferSize, |
| 1142 | extraField,extraFieldBufferSize, |
| 1143 | szComment,commentBufferSize); |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 1144 | if ((err==UNZ_OK) && (pfile_info != NULL)) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1145 | { |
| 1146 | pfile_info->version = file_info64.version; |
| 1147 | pfile_info->version_needed = file_info64.version_needed; |
| 1148 | pfile_info->flag = file_info64.flag; |
| 1149 | pfile_info->compression_method = file_info64.compression_method; |
| 1150 | pfile_info->dosDate = file_info64.dosDate; |
| 1151 | pfile_info->crc = file_info64.crc; |
| 1152 | |
| 1153 | pfile_info->size_filename = file_info64.size_filename; |
| 1154 | pfile_info->size_file_extra = file_info64.size_file_extra; |
| 1155 | pfile_info->size_file_comment = file_info64.size_file_comment; |
| 1156 | |
| 1157 | pfile_info->disk_num_start = file_info64.disk_num_start; |
| 1158 | pfile_info->internal_fa = file_info64.internal_fa; |
| 1159 | pfile_info->external_fa = file_info64.external_fa; |
| 1160 | |
| 1161 | pfile_info->tmu_date = file_info64.tmu_date, |
| 1162 | |
| 1163 | |
| 1164 | pfile_info->compressed_size = (uLong)file_info64.compressed_size; |
| 1165 | pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size; |
| 1166 | |
| 1167 | } |
| 1168 | return err; |
| 1169 | } |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1170 | /* |
| 1171 | Set the current file of the zipfile to the first file. |
| 1172 | return UNZ_OK if there is no problem |
| 1173 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1174 | extern int ZEXPORT unzGoToFirstFile (unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1175 | { |
| 1176 | int err=UNZ_OK; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1177 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1178 | if (file==NULL) |
| 1179 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1180 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1181 | s->pos_in_central_dir=s->offset_central_dir; |
| 1182 | s->num_file=0; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1183 | err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1184 | &s->cur_file_info_internal, |
| 1185 | NULL,0,NULL,0,NULL,0); |
| 1186 | s->current_file_ok = (err == UNZ_OK); |
| 1187 | return err; |
| 1188 | } |
| 1189 | |
| 1190 | /* |
| 1191 | Set the current file of the zipfile to the next file. |
| 1192 | return UNZ_OK if there is no problem |
| 1193 | return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. |
| 1194 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1195 | extern int ZEXPORT unzGoToNextFile (unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1196 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1197 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1198 | int err; |
| 1199 | |
| 1200 | if (file==NULL) |
| 1201 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1202 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1203 | if (!s->current_file_ok) |
| 1204 | return UNZ_END_OF_LIST_OF_FILE; |
| 1205 | if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */ |
| 1206 | if (s->num_file+1==s->gi.number_entry) |
| 1207 | return UNZ_END_OF_LIST_OF_FILE; |
| 1208 | |
| 1209 | s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename + |
| 1210 | s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ; |
| 1211 | s->num_file++; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1212 | err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1213 | &s->cur_file_info_internal, |
| 1214 | NULL,0,NULL,0,NULL,0); |
| 1215 | s->current_file_ok = (err == UNZ_OK); |
| 1216 | return err; |
| 1217 | } |
| 1218 | |
| 1219 | |
| 1220 | /* |
| 1221 | Try locate the file szFileName in the zipfile. |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 1222 | For the iCaseSensitivity signification, see unzStringFileNameCompare |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1223 | |
| 1224 | return value : |
| 1225 | UNZ_OK if the file is found. It becomes the current file. |
| 1226 | UNZ_END_OF_LIST_OF_FILE if the file is not found |
| 1227 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1228 | extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1229 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1230 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1231 | int err; |
| 1232 | |
| 1233 | /* We remember the 'current' position in the file so that we can jump |
| 1234 | * back there if we fail. |
| 1235 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1236 | unz_file_info64 cur_file_infoSaved; |
| 1237 | unz_file_info64_internal cur_file_info_internalSaved; |
| 1238 | ZPOS64_T num_fileSaved; |
| 1239 | ZPOS64_T pos_in_central_dirSaved; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1240 | |
| 1241 | |
| 1242 | if (file==NULL) |
| 1243 | return UNZ_PARAMERROR; |
| 1244 | |
| 1245 | if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP) |
| 1246 | return UNZ_PARAMERROR; |
| 1247 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1248 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1249 | if (!s->current_file_ok) |
| 1250 | return UNZ_END_OF_LIST_OF_FILE; |
| 1251 | |
| 1252 | /* Save the current state */ |
| 1253 | num_fileSaved = s->num_file; |
| 1254 | pos_in_central_dirSaved = s->pos_in_central_dir; |
| 1255 | cur_file_infoSaved = s->cur_file_info; |
| 1256 | cur_file_info_internalSaved = s->cur_file_info_internal; |
| 1257 | |
| 1258 | err = unzGoToFirstFile(file); |
| 1259 | |
| 1260 | while (err == UNZ_OK) |
| 1261 | { |
| 1262 | char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1]; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1263 | err = unzGetCurrentFileInfo64(file,NULL, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1264 | szCurrentFileName,sizeof(szCurrentFileName)-1, |
| 1265 | NULL,0,NULL,0); |
| 1266 | if (err == UNZ_OK) |
| 1267 | { |
| 1268 | if (unzStringFileNameCompare(szCurrentFileName, |
| 1269 | szFileName,iCaseSensitivity)==0) |
| 1270 | return UNZ_OK; |
| 1271 | err = unzGoToNextFile(file); |
| 1272 | } |
| 1273 | } |
| 1274 | |
| 1275 | /* We failed, so restore the state of the 'current file' to where we |
| 1276 | * were. |
| 1277 | */ |
| 1278 | s->num_file = num_fileSaved ; |
| 1279 | s->pos_in_central_dir = pos_in_central_dirSaved ; |
| 1280 | s->cur_file_info = cur_file_infoSaved; |
| 1281 | s->cur_file_info_internal = cur_file_info_internalSaved; |
| 1282 | return err; |
| 1283 | } |
| 1284 | |
| 1285 | |
| 1286 | /* |
| 1287 | /////////////////////////////////////////// |
| 1288 | // Contributed by Ryan Haksi (mailto://cryogen@infoserve.net) |
| 1289 | // I need random access |
| 1290 | // |
| 1291 | // Further optimization could be realized by adding an ability |
| 1292 | // to cache the directory in memory. The goal being a single |
| 1293 | // comprehensive file read to put the file I need in a memory. |
| 1294 | */ |
| 1295 | |
| 1296 | /* |
| 1297 | typedef struct unz_file_pos_s |
| 1298 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1299 | ZPOS64_T pos_in_zip_directory; // offset in file |
| 1300 | ZPOS64_T num_of_file; // # of file |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1301 | } unz_file_pos; |
| 1302 | */ |
| 1303 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1304 | extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1305 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1306 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1307 | |
| 1308 | if (file==NULL || file_pos==NULL) |
| 1309 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1310 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1311 | if (!s->current_file_ok) |
| 1312 | return UNZ_END_OF_LIST_OF_FILE; |
| 1313 | |
| 1314 | file_pos->pos_in_zip_directory = s->pos_in_central_dir; |
| 1315 | file_pos->num_of_file = s->num_file; |
| 1316 | |
| 1317 | return UNZ_OK; |
| 1318 | } |
| 1319 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1320 | extern int ZEXPORT unzGetFilePos( |
| 1321 | unzFile file, |
| 1322 | unz_file_pos* file_pos) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1323 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1324 | unz64_file_pos file_pos64; |
| 1325 | int err = unzGetFilePos64(file,&file_pos64); |
| 1326 | if (err==UNZ_OK) |
| 1327 | { |
| 1328 | file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory; |
| 1329 | file_pos->num_of_file = (uLong)file_pos64.num_of_file; |
| 1330 | } |
| 1331 | return err; |
| 1332 | } |
| 1333 | |
| 1334 | extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos) |
| 1335 | { |
| 1336 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1337 | int err; |
| 1338 | |
| 1339 | if (file==NULL || file_pos==NULL) |
| 1340 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1341 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1342 | |
| 1343 | /* jump to the right spot */ |
| 1344 | s->pos_in_central_dir = file_pos->pos_in_zip_directory; |
| 1345 | s->num_file = file_pos->num_of_file; |
| 1346 | |
| 1347 | /* set the current file */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1348 | err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1349 | &s->cur_file_info_internal, |
| 1350 | NULL,0,NULL,0,NULL,0); |
| 1351 | /* return results */ |
| 1352 | s->current_file_ok = (err == UNZ_OK); |
| 1353 | return err; |
| 1354 | } |
| 1355 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1356 | extern int ZEXPORT unzGoToFilePos( |
| 1357 | unzFile file, |
| 1358 | unz_file_pos* file_pos) |
| 1359 | { |
| 1360 | unz64_file_pos file_pos64; |
| 1361 | if (file_pos == NULL) |
| 1362 | return UNZ_PARAMERROR; |
| 1363 | |
| 1364 | file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory; |
| 1365 | file_pos64.num_of_file = file_pos->num_of_file; |
| 1366 | return unzGoToFilePos64(file,&file_pos64); |
| 1367 | } |
| 1368 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1369 | /* |
| 1370 | // Unzip Helper Functions - should be here? |
| 1371 | /////////////////////////////////////////// |
| 1372 | */ |
| 1373 | |
| 1374 | /* |
| 1375 | Read the local header of the current zipfile |
| 1376 | Check the coherency of the local header and info in the end of central |
| 1377 | directory about this file |
| 1378 | store in *piSizeVar the size of extra info in local header |
| 1379 | (filename and size of extra field data) |
| 1380 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1381 | local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar, |
| 1382 | ZPOS64_T * poffset_local_extrafield, |
| 1383 | uInt * psize_local_extrafield) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1384 | { |
| 1385 | uLong uMagic,uData,uFlags; |
| 1386 | uLong size_filename; |
| 1387 | uLong size_extra_field; |
| 1388 | int err=UNZ_OK; |
| 1389 | |
| 1390 | *piSizeVar = 0; |
| 1391 | *poffset_local_extrafield = 0; |
| 1392 | *psize_local_extrafield = 0; |
| 1393 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1394 | if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile + |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1395 | s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 1396 | return UNZ_ERRNO; |
| 1397 | |
| 1398 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1399 | if (err==UNZ_OK) |
| 1400 | { |
| 1401 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1402 | err=UNZ_ERRNO; |
| 1403 | else if (uMagic!=0x04034b50) |
| 1404 | err=UNZ_BADZIPFILE; |
erikkay@google.com | 8c6279b | 2009-01-29 00:06:47 +0000 | [diff] [blame] | 1405 | } |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1406 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1407 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1408 | err=UNZ_ERRNO; |
| 1409 | /* |
| 1410 | else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion)) |
| 1411 | err=UNZ_BADZIPFILE; |
| 1412 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1413 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1414 | err=UNZ_ERRNO; |
| 1415 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1416 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1417 | err=UNZ_ERRNO; |
| 1418 | else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method)) |
| 1419 | err=UNZ_BADZIPFILE; |
| 1420 | |
| 1421 | if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) && |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1422 | /* #ifdef HAVE_BZIP2 */ |
| 1423 | (s->cur_file_info.compression_method!=Z_BZIP2ED) && |
| 1424 | /* #endif */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1425 | (s->cur_file_info.compression_method!=Z_DEFLATED)) |
| 1426 | err=UNZ_BADZIPFILE; |
| 1427 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1428 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1429 | err=UNZ_ERRNO; |
| 1430 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1431 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1432 | err=UNZ_ERRNO; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1433 | else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0)) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1434 | err=UNZ_BADZIPFILE; |
| 1435 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1436 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1437 | err=UNZ_ERRNO; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1438 | else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0)) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1439 | err=UNZ_BADZIPFILE; |
| 1440 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1441 | if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1442 | err=UNZ_ERRNO; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1443 | else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0)) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1444 | err=UNZ_BADZIPFILE; |
| 1445 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1446 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1447 | err=UNZ_ERRNO; |
| 1448 | else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename)) |
| 1449 | err=UNZ_BADZIPFILE; |
| 1450 | |
| 1451 | *piSizeVar += (uInt)size_filename; |
| 1452 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1453 | if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1454 | err=UNZ_ERRNO; |
| 1455 | *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile + |
| 1456 | SIZEZIPLOCALHEADER + size_filename; |
| 1457 | *psize_local_extrafield = (uInt)size_extra_field; |
| 1458 | |
| 1459 | *piSizeVar += (uInt)size_extra_field; |
| 1460 | |
| 1461 | return err; |
| 1462 | } |
| 1463 | |
| 1464 | /* |
| 1465 | Open for reading data the current file in the zipfile. |
| 1466 | If there is no error and the file is opened, the return value is UNZ_OK. |
| 1467 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1468 | extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, |
| 1469 | int* level, int raw, const char* password) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1470 | { |
| 1471 | int err=UNZ_OK; |
| 1472 | uInt iSizeVar; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1473 | unz64_s* s; |
| 1474 | file_in_zip64_read_info_s* pfile_in_zip_read_info; |
| 1475 | ZPOS64_T offset_local_extrafield; /* offset of the local extra field */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1476 | uInt size_local_extrafield; /* size of the local extra field */ |
| 1477 | # ifndef NOUNCRYPT |
| 1478 | char source[12]; |
| 1479 | # else |
| 1480 | if (password != NULL) |
| 1481 | return UNZ_PARAMERROR; |
| 1482 | # endif |
| 1483 | |
| 1484 | if (file==NULL) |
| 1485 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1486 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1487 | if (!s->current_file_ok) |
| 1488 | return UNZ_PARAMERROR; |
| 1489 | |
| 1490 | if (s->pfile_in_zip_read != NULL) |
| 1491 | unzCloseCurrentFile(file); |
| 1492 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1493 | if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1494 | return UNZ_BADZIPFILE; |
| 1495 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1496 | pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s)); |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1497 | if (pfile_in_zip_read_info==NULL) |
| 1498 | return UNZ_INTERNALERROR; |
| 1499 | |
| 1500 | pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE); |
| 1501 | pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield; |
| 1502 | pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield; |
| 1503 | pfile_in_zip_read_info->pos_local_extrafield=0; |
| 1504 | pfile_in_zip_read_info->raw=raw; |
| 1505 | |
| 1506 | if (pfile_in_zip_read_info->read_buffer==NULL) |
| 1507 | { |
| 1508 | TRYFREE(pfile_in_zip_read_info); |
| 1509 | return UNZ_INTERNALERROR; |
| 1510 | } |
| 1511 | |
| 1512 | pfile_in_zip_read_info->stream_initialised=0; |
| 1513 | |
| 1514 | if (method!=NULL) |
| 1515 | *method = (int)s->cur_file_info.compression_method; |
| 1516 | |
| 1517 | if (level!=NULL) |
| 1518 | { |
| 1519 | *level = 6; |
| 1520 | switch (s->cur_file_info.flag & 0x06) |
| 1521 | { |
| 1522 | case 6 : *level = 1; break; |
| 1523 | case 4 : *level = 2; break; |
| 1524 | case 2 : *level = 9; break; |
| 1525 | } |
| 1526 | } |
| 1527 | |
| 1528 | if ((s->cur_file_info.compression_method!=0) && |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1529 | /* #ifdef HAVE_BZIP2 */ |
| 1530 | (s->cur_file_info.compression_method!=Z_BZIP2ED) && |
| 1531 | /* #endif */ |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1532 | (s->cur_file_info.compression_method!=Z_DEFLATED)) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1533 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1534 | err=UNZ_BADZIPFILE; |
| 1535 | |
| 1536 | pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc; |
| 1537 | pfile_in_zip_read_info->crc32=0; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1538 | pfile_in_zip_read_info->total_out_64=0; |
| 1539 | pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1540 | pfile_in_zip_read_info->filestream=s->filestream; |
| 1541 | pfile_in_zip_read_info->z_filefunc=s->z_filefunc; |
| 1542 | pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile; |
| 1543 | |
| 1544 | pfile_in_zip_read_info->stream.total_out = 0; |
| 1545 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1546 | if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw)) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1547 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1548 | #ifdef HAVE_BZIP2 |
| 1549 | pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0; |
| 1550 | pfile_in_zip_read_info->bstream.bzfree = (free_func)0; |
| 1551 | pfile_in_zip_read_info->bstream.opaque = (voidpf)0; |
| 1552 | pfile_in_zip_read_info->bstream.state = (voidpf)0; |
| 1553 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1554 | pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; |
| 1555 | pfile_in_zip_read_info->stream.zfree = (free_func)0; |
| 1556 | pfile_in_zip_read_info->stream.opaque = (voidpf)0; |
| 1557 | pfile_in_zip_read_info->stream.next_in = (voidpf)0; |
| 1558 | pfile_in_zip_read_info->stream.avail_in = 0; |
| 1559 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1560 | err=BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0); |
| 1561 | if (err == Z_OK) |
| 1562 | pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED; |
| 1563 | else |
| 1564 | { |
| 1565 | TRYFREE(pfile_in_zip_read_info); |
| 1566 | return err; |
| 1567 | } |
| 1568 | #else |
| 1569 | pfile_in_zip_read_info->raw=1; |
| 1570 | #endif |
| 1571 | } |
| 1572 | else if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw)) |
| 1573 | { |
| 1574 | pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; |
| 1575 | pfile_in_zip_read_info->stream.zfree = (free_func)0; |
| 1576 | pfile_in_zip_read_info->stream.opaque = (voidpf)0; |
| 1577 | pfile_in_zip_read_info->stream.next_in = 0; |
| 1578 | pfile_in_zip_read_info->stream.avail_in = 0; |
| 1579 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1580 | err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS); |
| 1581 | if (err == Z_OK) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1582 | pfile_in_zip_read_info->stream_initialised=Z_DEFLATED; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1583 | else |
| 1584 | { |
| 1585 | TRYFREE(pfile_in_zip_read_info); |
| 1586 | return err; |
| 1587 | } |
| 1588 | /* windowBits is passed < 0 to tell that there is no zlib header. |
| 1589 | * Note that in this case inflate *requires* an extra "dummy" byte |
| 1590 | * after the compressed stream in order to complete decompression and |
| 1591 | * return Z_STREAM_END. |
| 1592 | * In unzip, i don't wait absolutely Z_STREAM_END because I known the |
| 1593 | * size of both compressed and uncompressed data |
| 1594 | */ |
| 1595 | } |
| 1596 | pfile_in_zip_read_info->rest_read_compressed = |
| 1597 | s->cur_file_info.compressed_size ; |
| 1598 | pfile_in_zip_read_info->rest_read_uncompressed = |
| 1599 | s->cur_file_info.uncompressed_size ; |
| 1600 | |
| 1601 | |
| 1602 | pfile_in_zip_read_info->pos_in_zipfile = |
| 1603 | s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + |
| 1604 | iSizeVar; |
| 1605 | |
| 1606 | pfile_in_zip_read_info->stream.avail_in = (uInt)0; |
| 1607 | |
| 1608 | s->pfile_in_zip_read = pfile_in_zip_read_info; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1609 | s->encrypted = 0; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1610 | |
| 1611 | # ifndef NOUNCRYPT |
| 1612 | if (password != NULL) |
| 1613 | { |
| 1614 | int i; |
| 1615 | s->pcrc_32_tab = get_crc_table(); |
| 1616 | init_keys(password,s->keys,s->pcrc_32_tab); |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1617 | if (ZSEEK64(s->z_filefunc, s->filestream, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1618 | s->pfile_in_zip_read->pos_in_zipfile + |
| 1619 | s->pfile_in_zip_read->byte_before_the_zipfile, |
| 1620 | SEEK_SET)!=0) |
| 1621 | return UNZ_INTERNALERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1622 | if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1623 | return UNZ_INTERNALERROR; |
| 1624 | |
| 1625 | for (i = 0; i<12; i++) |
| 1626 | zdecode(s->keys,s->pcrc_32_tab,source[i]); |
| 1627 | |
| 1628 | s->pfile_in_zip_read->pos_in_zipfile+=12; |
Che-yu Wu | f072111 | 2018-08-06 14:09:22 +0000 | [diff] [blame] | 1629 | s->pfile_in_zip_read->rest_read_compressed-=12; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1630 | s->encrypted=1; |
| 1631 | } |
| 1632 | # endif |
| 1633 | |
| 1634 | |
| 1635 | return UNZ_OK; |
| 1636 | } |
| 1637 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1638 | extern int ZEXPORT unzOpenCurrentFile (unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1639 | { |
| 1640 | return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL); |
| 1641 | } |
| 1642 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1643 | extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1644 | { |
| 1645 | return unzOpenCurrentFile3(file, NULL, NULL, 0, password); |
| 1646 | } |
| 1647 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1648 | extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1649 | { |
| 1650 | return unzOpenCurrentFile3(file, method, level, raw, NULL); |
| 1651 | } |
| 1652 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1653 | /** Addition for GDAL : START */ |
| 1654 | |
| 1655 | extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file) |
| 1656 | { |
| 1657 | unz64_s* s; |
| 1658 | file_in_zip64_read_info_s* pfile_in_zip_read_info; |
| 1659 | s=(unz64_s*)file; |
| 1660 | if (file==NULL) |
| 1661 | return 0; //UNZ_PARAMERROR; |
| 1662 | pfile_in_zip_read_info=s->pfile_in_zip_read; |
| 1663 | if (pfile_in_zip_read_info==NULL) |
| 1664 | return 0; //UNZ_PARAMERROR; |
| 1665 | return pfile_in_zip_read_info->pos_in_zipfile + |
| 1666 | pfile_in_zip_read_info->byte_before_the_zipfile; |
| 1667 | } |
| 1668 | |
| 1669 | /** Addition for GDAL : END */ |
| 1670 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1671 | /* |
| 1672 | Read bytes from the current file. |
| 1673 | buf contain buffer where data must be copied |
| 1674 | len the size of buf. |
| 1675 | |
| 1676 | return the number of byte copied if somes bytes are copied |
| 1677 | return 0 if the end of file was reached |
| 1678 | return <0 with error code if there is an error |
| 1679 | (UNZ_ERRNO for IO error, or zLib error for uncompress error) |
| 1680 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1681 | extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1682 | { |
| 1683 | int err=UNZ_OK; |
| 1684 | uInt iRead = 0; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1685 | unz64_s* s; |
| 1686 | file_in_zip64_read_info_s* pfile_in_zip_read_info; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1687 | if (file==NULL) |
| 1688 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1689 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1690 | pfile_in_zip_read_info=s->pfile_in_zip_read; |
| 1691 | |
| 1692 | if (pfile_in_zip_read_info==NULL) |
| 1693 | return UNZ_PARAMERROR; |
| 1694 | |
| 1695 | |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 1696 | if (pfile_in_zip_read_info->read_buffer == NULL) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1697 | return UNZ_END_OF_LIST_OF_FILE; |
| 1698 | if (len==0) |
| 1699 | return 0; |
| 1700 | |
| 1701 | pfile_in_zip_read_info->stream.next_out = (Bytef*)buf; |
| 1702 | |
| 1703 | pfile_in_zip_read_info->stream.avail_out = (uInt)len; |
| 1704 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1705 | if ((len>pfile_in_zip_read_info->rest_read_compressed+ |
| 1706 | pfile_in_zip_read_info->stream.avail_in) && |
| 1707 | (pfile_in_zip_read_info->raw)) |
| 1708 | pfile_in_zip_read_info->stream.avail_out = |
| 1709 | (uInt)pfile_in_zip_read_info->rest_read_compressed+ |
| 1710 | pfile_in_zip_read_info->stream.avail_in; |
| 1711 | |
| 1712 | while (pfile_in_zip_read_info->stream.avail_out>0) |
| 1713 | { |
| 1714 | if ((pfile_in_zip_read_info->stream.avail_in==0) && |
| 1715 | (pfile_in_zip_read_info->rest_read_compressed>0)) |
| 1716 | { |
| 1717 | uInt uReadThis = UNZ_BUFSIZE; |
| 1718 | if (pfile_in_zip_read_info->rest_read_compressed<uReadThis) |
| 1719 | uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed; |
| 1720 | if (uReadThis == 0) |
| 1721 | return UNZ_EOF; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1722 | if (ZSEEK64(pfile_in_zip_read_info->z_filefunc, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1723 | pfile_in_zip_read_info->filestream, |
| 1724 | pfile_in_zip_read_info->pos_in_zipfile + |
| 1725 | pfile_in_zip_read_info->byte_before_the_zipfile, |
| 1726 | ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 1727 | return UNZ_ERRNO; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1728 | if (ZREAD64(pfile_in_zip_read_info->z_filefunc, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1729 | pfile_in_zip_read_info->filestream, |
| 1730 | pfile_in_zip_read_info->read_buffer, |
| 1731 | uReadThis)!=uReadThis) |
| 1732 | return UNZ_ERRNO; |
| 1733 | |
| 1734 | |
| 1735 | # ifndef NOUNCRYPT |
| 1736 | if(s->encrypted) |
| 1737 | { |
| 1738 | uInt i; |
| 1739 | for(i=0;i<uReadThis;i++) |
| 1740 | pfile_in_zip_read_info->read_buffer[i] = |
| 1741 | zdecode(s->keys,s->pcrc_32_tab, |
| 1742 | pfile_in_zip_read_info->read_buffer[i]); |
| 1743 | } |
| 1744 | # endif |
| 1745 | |
| 1746 | |
| 1747 | pfile_in_zip_read_info->pos_in_zipfile += uReadThis; |
| 1748 | |
| 1749 | pfile_in_zip_read_info->rest_read_compressed-=uReadThis; |
| 1750 | |
| 1751 | pfile_in_zip_read_info->stream.next_in = |
| 1752 | (Bytef*)pfile_in_zip_read_info->read_buffer; |
| 1753 | pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis; |
| 1754 | } |
| 1755 | |
| 1756 | if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw)) |
| 1757 | { |
| 1758 | uInt uDoCopy,i ; |
| 1759 | |
| 1760 | if ((pfile_in_zip_read_info->stream.avail_in == 0) && |
| 1761 | (pfile_in_zip_read_info->rest_read_compressed == 0)) |
| 1762 | return (iRead==0) ? UNZ_EOF : iRead; |
| 1763 | |
| 1764 | if (pfile_in_zip_read_info->stream.avail_out < |
| 1765 | pfile_in_zip_read_info->stream.avail_in) |
| 1766 | uDoCopy = pfile_in_zip_read_info->stream.avail_out ; |
| 1767 | else |
| 1768 | uDoCopy = pfile_in_zip_read_info->stream.avail_in ; |
| 1769 | |
| 1770 | for (i=0;i<uDoCopy;i++) |
| 1771 | *(pfile_in_zip_read_info->stream.next_out+i) = |
| 1772 | *(pfile_in_zip_read_info->stream.next_in+i); |
| 1773 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1774 | pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy; |
| 1775 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1776 | pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32, |
| 1777 | pfile_in_zip_read_info->stream.next_out, |
| 1778 | uDoCopy); |
| 1779 | pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy; |
| 1780 | pfile_in_zip_read_info->stream.avail_in -= uDoCopy; |
| 1781 | pfile_in_zip_read_info->stream.avail_out -= uDoCopy; |
| 1782 | pfile_in_zip_read_info->stream.next_out += uDoCopy; |
| 1783 | pfile_in_zip_read_info->stream.next_in += uDoCopy; |
| 1784 | pfile_in_zip_read_info->stream.total_out += uDoCopy; |
| 1785 | iRead += uDoCopy; |
| 1786 | } |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1787 | else if (pfile_in_zip_read_info->compression_method==Z_BZIP2ED) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1788 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1789 | #ifdef HAVE_BZIP2 |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1790 | uLong uTotalOutBefore,uTotalOutAfter; |
| 1791 | const Bytef *bufBefore; |
| 1792 | uLong uOutThis; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1793 | |
| 1794 | pfile_in_zip_read_info->bstream.next_in = (char*)pfile_in_zip_read_info->stream.next_in; |
| 1795 | pfile_in_zip_read_info->bstream.avail_in = pfile_in_zip_read_info->stream.avail_in; |
| 1796 | pfile_in_zip_read_info->bstream.total_in_lo32 = pfile_in_zip_read_info->stream.total_in; |
| 1797 | pfile_in_zip_read_info->bstream.total_in_hi32 = 0; |
| 1798 | pfile_in_zip_read_info->bstream.next_out = (char*)pfile_in_zip_read_info->stream.next_out; |
| 1799 | pfile_in_zip_read_info->bstream.avail_out = pfile_in_zip_read_info->stream.avail_out; |
| 1800 | pfile_in_zip_read_info->bstream.total_out_lo32 = pfile_in_zip_read_info->stream.total_out; |
| 1801 | pfile_in_zip_read_info->bstream.total_out_hi32 = 0; |
| 1802 | |
| 1803 | uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32; |
| 1804 | bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out; |
| 1805 | |
| 1806 | err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream); |
| 1807 | |
| 1808 | uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32; |
| 1809 | uOutThis = uTotalOutAfter-uTotalOutBefore; |
| 1810 | |
| 1811 | pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis; |
| 1812 | |
| 1813 | pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,bufBefore, (uInt)(uOutThis)); |
| 1814 | pfile_in_zip_read_info->rest_read_uncompressed -= uOutThis; |
| 1815 | iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); |
| 1816 | |
| 1817 | pfile_in_zip_read_info->stream.next_in = (Bytef*)pfile_in_zip_read_info->bstream.next_in; |
| 1818 | pfile_in_zip_read_info->stream.avail_in = pfile_in_zip_read_info->bstream.avail_in; |
| 1819 | pfile_in_zip_read_info->stream.total_in = pfile_in_zip_read_info->bstream.total_in_lo32; |
| 1820 | pfile_in_zip_read_info->stream.next_out = (Bytef*)pfile_in_zip_read_info->bstream.next_out; |
| 1821 | pfile_in_zip_read_info->stream.avail_out = pfile_in_zip_read_info->bstream.avail_out; |
| 1822 | pfile_in_zip_read_info->stream.total_out = pfile_in_zip_read_info->bstream.total_out_lo32; |
| 1823 | |
| 1824 | if (err==BZ_STREAM_END) |
| 1825 | return (iRead==0) ? UNZ_EOF : iRead; |
| 1826 | if (err!=BZ_OK) |
| 1827 | break; |
| 1828 | #endif |
| 1829 | } // end Z_BZIP2ED |
| 1830 | else |
| 1831 | { |
| 1832 | ZPOS64_T uTotalOutBefore,uTotalOutAfter; |
| 1833 | const Bytef *bufBefore; |
| 1834 | ZPOS64_T uOutThis; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1835 | int flush=Z_SYNC_FLUSH; |
| 1836 | |
| 1837 | uTotalOutBefore = pfile_in_zip_read_info->stream.total_out; |
| 1838 | bufBefore = pfile_in_zip_read_info->stream.next_out; |
| 1839 | |
| 1840 | /* |
| 1841 | if ((pfile_in_zip_read_info->rest_read_uncompressed == |
| 1842 | pfile_in_zip_read_info->stream.avail_out) && |
| 1843 | (pfile_in_zip_read_info->rest_read_compressed == 0)) |
| 1844 | flush = Z_FINISH; |
| 1845 | */ |
| 1846 | err=inflate(&pfile_in_zip_read_info->stream,flush); |
| 1847 | |
| 1848 | if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL)) |
| 1849 | err = Z_DATA_ERROR; |
| 1850 | |
| 1851 | uTotalOutAfter = pfile_in_zip_read_info->stream.total_out; |
| 1852 | uOutThis = uTotalOutAfter-uTotalOutBefore; |
| 1853 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1854 | pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis; |
| 1855 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1856 | pfile_in_zip_read_info->crc32 = |
| 1857 | crc32(pfile_in_zip_read_info->crc32,bufBefore, |
| 1858 | (uInt)(uOutThis)); |
| 1859 | |
| 1860 | pfile_in_zip_read_info->rest_read_uncompressed -= |
| 1861 | uOutThis; |
| 1862 | |
| 1863 | iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); |
| 1864 | |
| 1865 | if (err==Z_STREAM_END) |
| 1866 | return (iRead==0) ? UNZ_EOF : iRead; |
| 1867 | if (err!=Z_OK) |
| 1868 | break; |
| 1869 | } |
| 1870 | } |
| 1871 | |
| 1872 | if (err==Z_OK) |
| 1873 | return iRead; |
| 1874 | return err; |
| 1875 | } |
| 1876 | |
| 1877 | |
| 1878 | /* |
| 1879 | Give the current position in uncompressed data |
| 1880 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1881 | extern z_off_t ZEXPORT unztell (unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1882 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1883 | unz64_s* s; |
| 1884 | file_in_zip64_read_info_s* pfile_in_zip_read_info; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1885 | if (file==NULL) |
| 1886 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1887 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1888 | pfile_in_zip_read_info=s->pfile_in_zip_read; |
| 1889 | |
| 1890 | if (pfile_in_zip_read_info==NULL) |
| 1891 | return UNZ_PARAMERROR; |
| 1892 | |
| 1893 | return (z_off_t)pfile_in_zip_read_info->stream.total_out; |
| 1894 | } |
| 1895 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1896 | extern ZPOS64_T ZEXPORT unztell64 (unzFile file) |
| 1897 | { |
| 1898 | |
| 1899 | unz64_s* s; |
| 1900 | file_in_zip64_read_info_s* pfile_in_zip_read_info; |
| 1901 | if (file==NULL) |
| 1902 | return (ZPOS64_T)-1; |
| 1903 | s=(unz64_s*)file; |
| 1904 | pfile_in_zip_read_info=s->pfile_in_zip_read; |
| 1905 | |
| 1906 | if (pfile_in_zip_read_info==NULL) |
| 1907 | return (ZPOS64_T)-1; |
| 1908 | |
| 1909 | return pfile_in_zip_read_info->total_out_64; |
| 1910 | } |
| 1911 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1912 | |
| 1913 | /* |
| 1914 | return 1 if the end of file was reached, 0 elsewhere |
| 1915 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1916 | extern int ZEXPORT unzeof (unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1917 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1918 | unz64_s* s; |
| 1919 | file_in_zip64_read_info_s* pfile_in_zip_read_info; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1920 | if (file==NULL) |
| 1921 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1922 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1923 | pfile_in_zip_read_info=s->pfile_in_zip_read; |
| 1924 | |
| 1925 | if (pfile_in_zip_read_info==NULL) |
| 1926 | return UNZ_PARAMERROR; |
| 1927 | |
| 1928 | if (pfile_in_zip_read_info->rest_read_uncompressed == 0) |
| 1929 | return 1; |
| 1930 | else |
| 1931 | return 0; |
| 1932 | } |
| 1933 | |
| 1934 | |
| 1935 | |
| 1936 | /* |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1937 | Read extra field from the current file (opened by unzOpenCurrentFile) |
| 1938 | This is the local-header version of the extra field (sometimes, there is |
| 1939 | more info in the local-header version than in the central-header) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1940 | |
| 1941 | if buf==NULL, it return the size of the local extra field that can be read |
| 1942 | |
| 1943 | if buf!=NULL, len is the size of the buffer, the extra header is copied in |
| 1944 | buf. |
| 1945 | the return value is the number of bytes copied in buf, or (if <0) |
| 1946 | the error code |
| 1947 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1948 | extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1949 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1950 | unz64_s* s; |
| 1951 | file_in_zip64_read_info_s* pfile_in_zip_read_info; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1952 | uInt read_now; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1953 | ZPOS64_T size_to_read; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1954 | |
| 1955 | if (file==NULL) |
| 1956 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1957 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1958 | pfile_in_zip_read_info=s->pfile_in_zip_read; |
| 1959 | |
| 1960 | if (pfile_in_zip_read_info==NULL) |
| 1961 | return UNZ_PARAMERROR; |
| 1962 | |
| 1963 | size_to_read = (pfile_in_zip_read_info->size_local_extrafield - |
| 1964 | pfile_in_zip_read_info->pos_local_extrafield); |
| 1965 | |
| 1966 | if (buf==NULL) |
| 1967 | return (int)size_to_read; |
| 1968 | |
| 1969 | if (len>size_to_read) |
| 1970 | read_now = (uInt)size_to_read; |
| 1971 | else |
| 1972 | read_now = (uInt)len ; |
| 1973 | |
| 1974 | if (read_now==0) |
| 1975 | return 0; |
| 1976 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1977 | if (ZSEEK64(pfile_in_zip_read_info->z_filefunc, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1978 | pfile_in_zip_read_info->filestream, |
| 1979 | pfile_in_zip_read_info->offset_local_extrafield + |
| 1980 | pfile_in_zip_read_info->pos_local_extrafield, |
| 1981 | ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 1982 | return UNZ_ERRNO; |
| 1983 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1984 | if (ZREAD64(pfile_in_zip_read_info->z_filefunc, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1985 | pfile_in_zip_read_info->filestream, |
| 1986 | buf,read_now)!=read_now) |
| 1987 | return UNZ_ERRNO; |
| 1988 | |
| 1989 | return (int)read_now; |
| 1990 | } |
| 1991 | |
| 1992 | /* |
jiadong.zhu | 6c14216 | 2016-06-22 21:22:18 -0700 | [diff] [blame] | 1993 | Close the file in zip opened with unzOpenCurrentFile |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1994 | Return UNZ_CRCERROR if all the file was read but the CRC is not good |
| 1995 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 1996 | extern int ZEXPORT unzCloseCurrentFile (unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 1997 | { |
| 1998 | int err=UNZ_OK; |
| 1999 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2000 | unz64_s* s; |
| 2001 | file_in_zip64_read_info_s* pfile_in_zip_read_info; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2002 | if (file==NULL) |
| 2003 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2004 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2005 | pfile_in_zip_read_info=s->pfile_in_zip_read; |
| 2006 | |
| 2007 | if (pfile_in_zip_read_info==NULL) |
| 2008 | return UNZ_PARAMERROR; |
| 2009 | |
| 2010 | |
| 2011 | if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) && |
| 2012 | (!pfile_in_zip_read_info->raw)) |
| 2013 | { |
| 2014 | if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait) |
| 2015 | err=UNZ_CRCERROR; |
| 2016 | } |
| 2017 | |
| 2018 | |
| 2019 | TRYFREE(pfile_in_zip_read_info->read_buffer); |
| 2020 | pfile_in_zip_read_info->read_buffer = NULL; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2021 | if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2022 | inflateEnd(&pfile_in_zip_read_info->stream); |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2023 | #ifdef HAVE_BZIP2 |
| 2024 | else if (pfile_in_zip_read_info->stream_initialised == Z_BZIP2ED) |
| 2025 | BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream); |
| 2026 | #endif |
| 2027 | |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2028 | |
| 2029 | pfile_in_zip_read_info->stream_initialised = 0; |
| 2030 | TRYFREE(pfile_in_zip_read_info); |
| 2031 | |
| 2032 | s->pfile_in_zip_read=NULL; |
| 2033 | |
| 2034 | return err; |
| 2035 | } |
| 2036 | |
| 2037 | |
| 2038 | /* |
| 2039 | Get the global comment string of the ZipFile, in the szComment buffer. |
| 2040 | uSizeBuf is the size of the szComment buffer. |
| 2041 | return the number of byte copied or an error code <0 |
| 2042 | */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2043 | extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2044 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2045 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2046 | uLong uReadThis ; |
| 2047 | if (file==NULL) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2048 | return (int)UNZ_PARAMERROR; |
| 2049 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2050 | |
| 2051 | uReadThis = uSizeBuf; |
| 2052 | if (uReadThis>s->gi.size_comment) |
| 2053 | uReadThis = s->gi.size_comment; |
| 2054 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2055 | if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2056 | return UNZ_ERRNO; |
| 2057 | |
| 2058 | if (uReadThis>0) |
| 2059 | { |
| 2060 | *szComment='\0'; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2061 | if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2062 | return UNZ_ERRNO; |
| 2063 | } |
| 2064 | |
| 2065 | if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment)) |
| 2066 | *(szComment+s->gi.size_comment)='\0'; |
| 2067 | return (int)uReadThis; |
| 2068 | } |
| 2069 | |
| 2070 | /* Additions by RX '2004 */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2071 | extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2072 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2073 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2074 | |
| 2075 | if (file==NULL) |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2076 | return 0; //UNZ_PARAMERROR; |
| 2077 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2078 | if (!s->current_file_ok) |
| 2079 | return 0; |
| 2080 | if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff) |
| 2081 | if (s->num_file==s->gi.number_entry) |
| 2082 | return 0; |
| 2083 | return s->pos_in_central_dir; |
| 2084 | } |
| 2085 | |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2086 | extern uLong ZEXPORT unzGetOffset (unzFile file) |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2087 | { |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2088 | ZPOS64_T offset64; |
| 2089 | |
| 2090 | if (file==NULL) |
| 2091 | return 0; //UNZ_PARAMERROR; |
| 2092 | offset64 = unzGetOffset64(file); |
| 2093 | return (uLong)offset64; |
| 2094 | } |
| 2095 | |
| 2096 | extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos) |
| 2097 | { |
| 2098 | unz64_s* s; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2099 | int err; |
| 2100 | |
| 2101 | if (file==NULL) |
| 2102 | return UNZ_PARAMERROR; |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2103 | s=(unz64_s*)file; |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2104 | |
| 2105 | s->pos_in_central_dir = pos; |
| 2106 | s->num_file = s->gi.number_entry; /* hack */ |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2107 | err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, |
erikkay@google.com | 19ba4a5 | 2008-12-30 00:40:04 +0000 | [diff] [blame] | 2108 | &s->cur_file_info_internal, |
| 2109 | NULL,0,NULL,0,NULL,0); |
| 2110 | s->current_file_ok = (err == UNZ_OK); |
| 2111 | return err; |
| 2112 | } |
hbono@chromium.org | d2dc209 | 2011-12-12 08:48:38 +0000 | [diff] [blame] | 2113 | |
| 2114 | extern int ZEXPORT unzSetOffset (unzFile file, uLong pos) |
| 2115 | { |
| 2116 | return unzSetOffset64(file,pos); |
| 2117 | } |