1 /* unzip.h -- IO for uncompress .zip files using zlib 2 Version 1.1, February 14h, 2010 3 part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) 4 5 Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) 6 7 Modifications of Unzip for Zip64 8 Copyright (C) 2007-2008 Even Rouault 9 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 Condition of use and distribution are the same than zlib : 18 19 This software is provided 'as-is', without any express or implied 20 warranty. In no event will the authors be held liable for any damages 21 arising from the use of this software. 22 23 Permission is granted to anyone to use this software for any purpose, 24 including commercial applications, and to alter it and redistribute it 25 freely, subject to the following restrictions: 26 27 1. The origin of this software must not be misrepresented; you must not 28 claim that you wrote the original software. If you use this software 29 in a product, an acknowledgment in the product documentation would be 30 appreciated but is not required. 31 2. Altered source versions must be plainly marked as such, and must not be 32 misrepresented as being the original software. 33 3. This notice may not be removed or altered from any source distribution. 34 35 --------------------------------------------------------------------------------- 36 37 Changes 38 39 See header of unzip64.c 40 41 --------------------------------------------------------------------------- 42 43 As per the requirement above, this file is plainly marked as modified 44 by Sergey A. Tachenov. Most modifications include the I/O API redesign 45 to support QIODevice interface. Some improvements and small fixes were also made. 46 */ 47 48 #ifndef _unz64_H 49 #define _unz64_H 50 51 #ifdef __cplusplus 52 extern "C" { 53 #endif 54 55 #ifndef _ZLIB_H 56 #include <zlib.h> 57 #endif 58 59 #ifndef _ZLIBIOAPI_H 60 #include "ioapi.h" 61 #endif 62 63 #ifdef HAVE_BZIP2 64 #include "bzlib.h" 65 #endif 66 67 #define Z_BZIP2ED 12 68 69 #if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP) 70 /* like the STRICT of WIN32, we define a pointer that cannot be converted 71 from (void*) without cast */ 72 typedef struct TagunzFile__ { int unused; } unzFile__; 73 typedef unzFile__ *unzFile; 74 #else 75 typedef voidp unzFile; 76 #endif 77 78 79 #define UNZ_OK (0) 80 #define UNZ_END_OF_LIST_OF_FILE (-100) 81 #define UNZ_ERRNO (Z_ERRNO) 82 #define UNZ_EOF (0) 83 #define UNZ_PARAMERROR (-102) 84 #define UNZ_BADZIPFILE (-103) 85 #define UNZ_INTERNALERROR (-104) 86 #define UNZ_CRCERROR (-105) 87 88 #define UNZ_AUTO_CLOSE 0x01u 89 #define UNZ_DEFAULT_FLAGS UNZ_AUTO_CLOSE 90 #define UNZ_ENCODING_UTF8 0x0800u 91 92 /* tm_unz contain date/time info */ 93 typedef struct tm_unz_s 94 { 95 uInt tm_sec; /* seconds after the minute - [0,59] */ 96 uInt tm_min; /* minutes after the hour - [0,59] */ 97 uInt tm_hour; /* hours since midnight - [0,23] */ 98 uInt tm_mday; /* day of the month - [1,31] */ 99 uInt tm_mon; /* months since January - [0,11] */ 100 uInt tm_year; /* years - [1980..2044] */ 101 } tm_unz; 102 103 /* unz_global_info structure contain global data about the ZIPfile 104 These data comes from the end of central dir */ 105 typedef struct unz_global_info64_s 106 { 107 ZPOS64_T number_entry; /* total number of entries in 108 the central dir on this disk */ 109 uLong size_comment; /* size of the global comment of the zipfile */ 110 } unz_global_info64; 111 112 typedef struct unz_global_info_s 113 { 114 uLong number_entry; /* total number of entries in 115 the central dir on this disk */ 116 uLong size_comment; /* size of the global comment of the zipfile */ 117 } unz_global_info; 118 119 /* unz_file_info contain information about a file in the zipfile */ 120 typedef struct unz_file_info64_s 121 { 122 uLong version; /* version made by 2 bytes */ 123 uLong version_needed; /* version needed to extract 2 bytes */ 124 uLong flag; /* general purpose bit flag 2 bytes */ 125 uLong compression_method; /* compression method 2 bytes */ 126 uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ 127 uLong crc; /* crc-32 4 bytes */ 128 ZPOS64_T compressed_size; /* compressed size 8 bytes */ 129 ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */ 130 uLong size_filename; /* filename length 2 bytes */ 131 uLong size_file_extra; /* extra field length 2 bytes */ 132 uLong size_file_comment; /* file comment length 2 bytes */ 133 134 uLong disk_num_start; /* disk number start 2 bytes */ 135 uLong internal_fa; /* internal file attributes 2 bytes */ 136 uLong external_fa; /* external file attributes 4 bytes */ 137 138 tm_unz tmu_date; 139 } unz_file_info64; 140 141 typedef struct unz_file_info_s 142 { 143 uLong version; /* version made by 2 bytes */ 144 uLong version_needed; /* version needed to extract 2 bytes */ 145 uLong flag; /* general purpose bit flag 2 bytes */ 146 uLong compression_method; /* compression method 2 bytes */ 147 uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ 148 uLong crc; /* crc-32 4 bytes */ 149 uLong compressed_size; /* compressed size 4 bytes */ 150 uLong uncompressed_size; /* uncompressed size 4 bytes */ 151 uLong size_filename; /* filename length 2 bytes */ 152 uLong size_file_extra; /* extra field length 2 bytes */ 153 uLong size_file_comment; /* file comment length 2 bytes */ 154 155 uLong disk_num_start; /* disk number start 2 bytes */ 156 uLong internal_fa; /* internal file attributes 2 bytes */ 157 uLong external_fa; /* external file attributes 4 bytes */ 158 159 tm_unz tmu_date; 160 } unz_file_info; 161 162 extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1, 163 const char* fileName2, 164 int iCaseSensitivity)); 165 /* 166 Compare two filename (fileName1,fileName2). 167 If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) 168 If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi 169 or strcasecmp) 170 If iCaseSenisivity = 0, case sensitivity is defaut of your operating system 171 (like 1 on Unix, 2 on Windows) 172 */ 173 174 175 extern unzFile ZEXPORT unzOpen OF((voidpf file)); 176 extern unzFile ZEXPORT unzOpen64 OF((voidpf file)); 177 /* 178 Open a Zip file. path contain the full pathname (by example, 179 on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer 180 "zlib/zlib113.zip". 181 If the zipfile cannot be opened (file don't exist or in not valid), the 182 return value is NULL. 183 Else, the return value is a unzFile Handle, usable with other function 184 of this unzip package. 185 the "64" function take a const void* pointer, because the path is just the 186 value passed to the open64_file_func callback. 187 Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path 188 is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char* 189 does not describe the reality 190 */ 191 192 193 extern unzFile ZEXPORT unzOpen2 OF((voidpf file, 194 zlib_filefunc_def* pzlib_filefunc_def)); 195 /* 196 Open a Zip file, like unzOpen, but provide a set of file low level API 197 for read/write the zip file (see ioapi.h) 198 */ 199 200 extern unzFile ZEXPORT unzOpen2_64 OF((voidpf file, 201 zlib_filefunc64_def* pzlib_filefunc_def)); 202 /* 203 Open a Zip file, like unz64Open, but provide a set of file low level API 204 for read/write the zip file (see ioapi.h) 205 */ 206 207 208 /* 209 * Exported by Sergey A. Tachenov to implement some QuaZip features. This 210 * function MAY change signature in order to implement even more features. 211 * You have been warned! 212 * */ 213 extern unzFile unzOpenInternal (voidpf file, 214 zlib_filefunc64_32_def* pzlib_filefunc64_32_def, 215 int is64bitOpenFunction, unsigned flags); 216 217 218 219 extern int ZEXPORT unzClose OF((unzFile file)); 220 /* 221 Close a ZipFile opened with unzipOpen. 222 If there is files inside the .Zip opened with unzOpenCurrentFile (see later), 223 these files MUST be closed with unzipCloseCurrentFile before call unzipClose. 224 return UNZ_OK if there is no problem. */ 225 226 extern int ZEXPORT unzGetGlobalInfo OF((unzFile file, 227 unz_global_info *pglobal_info)); 228 229 extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file, 230 unz_global_info64 *pglobal_info)); 231 232 extern int ZEXPORT unzGetFileFlags OF((unzFile file, unsigned* pflags)); 233 /* 234 Write info about the ZipFile in the *pglobal_info structure. 235 No preparation of the structure is needed 236 return UNZ_OK if there is no problem. */ 237 238 239 extern int ZEXPORT unzGetGlobalComment OF((unzFile file, 240 char *szComment, 241 uLong uSizeBuf)); 242 /* 243 Get the global comment string of the ZipFile, in the szComment buffer. 244 uSizeBuf is the size of the szComment buffer. 245 return the number of byte copied or an error code <0 246 */ 247 248 249 /***************************************************************************/ 250 /* Unzip package allow you browse the directory of the zipfile */ 251 252 extern int ZEXPORT unzGoToFirstFile OF((unzFile file)); 253 /* 254 Set the current file of the zipfile to the first file. 255 return UNZ_OK if there is no problem 256 */ 257 258 extern int ZEXPORT unzGoToNextFile OF((unzFile file)); 259 /* 260 Set the current file of the zipfile to the next file. 261 return UNZ_OK if there is no problem 262 return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. 263 */ 264 265 extern int ZEXPORT unzLocateFile OF((unzFile file, 266 const char *szFileName, 267 int iCaseSensitivity)); 268 /* 269 Try locate the file szFileName in the zipfile. 270 For the iCaseSensitivity signification, see unzStringFileNameCompare 271 272 return value : 273 UNZ_OK if the file is found. It becomes the current file. 274 UNZ_END_OF_LIST_OF_FILE if the file is not found 275 */ 276 277 278 /* ****************************************** */ 279 /* Ryan supplied functions */ 280 /* unz_file_info contain information about a file in the zipfile */ 281 typedef struct unz_file_pos_s 282 { 283 uLong pos_in_zip_directory; /* offset in zip file directory */ 284 uLong num_of_file; /* # of file */ 285 } unz_file_pos; 286 287 extern int ZEXPORT unzGetFilePos( 288 unzFile file, 289 unz_file_pos* file_pos); 290 291 extern int ZEXPORT unzGoToFilePos( 292 unzFile file, 293 unz_file_pos* file_pos); 294 295 typedef struct unz64_file_pos_s 296 { 297 ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */ 298 ZPOS64_T num_of_file; /* # of file */ 299 } unz64_file_pos; 300 301 extern int ZEXPORT unzGetFilePos64( 302 unzFile file, 303 unz64_file_pos* file_pos); 304 305 extern int ZEXPORT unzGoToFilePos64( 306 unzFile file, 307 const unz64_file_pos* file_pos); 308 309 /* ****************************************** */ 310 311 extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file, 312 unz_file_info64 *pfile_info, 313 char *szFileName, 314 uLong fileNameBufferSize, 315 void *extraField, 316 uLong extraFieldBufferSize, 317 char *szComment, 318 uLong commentBufferSize)); 319 320 extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file, 321 unz_file_info *pfile_info, 322 char *szFileName, 323 uLong fileNameBufferSize, 324 void *extraField, 325 uLong extraFieldBufferSize, 326 char *szComment, 327 uLong commentBufferSize)); 328 /* 329 Get Info about the current file 330 if pfile_info!=NULL, the *pfile_info structure will contain somes info about 331 the current file 332 if szFileName!=NULL, the filemane string will be copied in szFileName 333 (fileNameBufferSize is the size of the buffer) 334 if extraField!=NULL, the extra field information will be copied in extraField 335 (extraFieldBufferSize is the size of the buffer). 336 This is the Central-header version of the extra field 337 if szComment!=NULL, the comment string of the file will be copied in szComment 338 (commentBufferSize is the size of the buffer) 339 */ 340 341 342 /** Addition for GDAL : START */ 343 344 extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file)); 345 346 /** Addition for GDAL : END */ 347 348 349 /***************************************************************************/ 350 /* for reading the content of the current zipfile, you can open it, read data 351 from it, and close it (you can close it before reading all the file) 352 */ 353 354 extern int ZEXPORT unzOpenCurrentFile OF((unzFile file)); 355 /* 356 Open for reading data the current file in the zipfile. 357 If there is no error, the return value is UNZ_OK. 358 */ 359 360 extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file, 361 const char* password)); 362 /* 363 Open for reading data the current file in the zipfile. 364 password is a crypting password 365 If there is no error, the return value is UNZ_OK. 366 */ 367 368 extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file, 369 int* method, 370 int* level, 371 int raw)); 372 /* 373 Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) 374 if raw==1 375 *method will receive method of compression, *level will receive level of 376 compression 377 note : you can set level parameter as NULL (if you did not want known level, 378 but you CANNOT set method parameter as NULL 379 */ 380 381 extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file, 382 int* method, 383 int* level, 384 int raw, 385 const char* password)); 386 /* 387 Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) 388 if raw==1 389 *method will receive method of compression, *level will receive level of 390 compression 391 note : you can set level parameter as NULL (if you did not want known level, 392 but you CANNOT set method parameter as NULL 393 */ 394 395 396 extern int ZEXPORT unzCloseCurrentFile OF((unzFile file)); 397 /* 398 Close the file in zip opened with unzOpenCurrentFile 399 Return UNZ_CRCERROR if all the file was read but the CRC is not good 400 */ 401 402 extern int ZEXPORT unzReadCurrentFile OF((unzFile file, 403 voidp buf, 404 unsigned len)); 405 /* 406 Read bytes from the current file (opened by unzOpenCurrentFile) 407 buf contain buffer where data must be copied 408 len the size of buf. 409 410 return the number of byte copied if somes bytes are copied 411 return 0 if the end of file was reached 412 return <0 with error code if there is an error 413 (UNZ_ERRNO for IO error, or zLib error for uncompress error) 414 */ 415 416 extern z_off_t ZEXPORT unztell OF((unzFile file)); 417 418 extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file)); 419 /* 420 Give the current position in uncompressed data 421 */ 422 423 extern int ZEXPORT unzeof OF((unzFile file)); 424 /* 425 return 1 if the end of file was reached, 0 elsewhere 426 */ 427 428 extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file, 429 voidp buf, 430 unsigned len)); 431 /* 432 Read extra field from the current file (opened by unzOpenCurrentFile) 433 This is the local-header version of the extra field (sometimes, there is 434 more info in the local-header version than in the central-header) 435 436 if buf==NULL, it return the size of the local extra field 437 438 if buf!=NULL, len is the size of the buffer, the extra header is copied in 439 buf. 440 the return value is the number of bytes copied in buf, or (if <0) 441 the error code 442 */ 443 444 /***************************************************************************/ 445 446 /* Get the current file offset */ 447 extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file); 448 extern uLong ZEXPORT unzGetOffset (unzFile file); 449 450 /* Set the current file offset */ 451 extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos); 452 extern int ZEXPORT unzSetOffset (unzFile file, uLong pos); 453 454 extern int ZEXPORT unzSetFlags(unzFile file, unsigned flags); 455 extern int ZEXPORT unzClearFlags(unzFile file, unsigned flags); 456 457 #ifdef __cplusplus 458 } 459 #endif 460 461 #endif /* _unz64_H */ 462