workbench/libs/z/contrib/minizip/unzip.h

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