| 1 | /* unzip.h -- IO for uncompress .zip files using zlib |
| 2 | Version 1.01e, February 12th, 2005 |
| 3 | |
| 4 | Copyright (C) 1998-2005 Gilles Vollant |
| 5 | |
| 6 | This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g |
| 7 | WinZip, InfoZip tools and compatible. |
| 8 | |
| 9 | Multi volume ZipFile (span) are not supported. |
| 10 | Encryption compatible with pkzip 2.04g only supported |
| 11 | Old compressions used by old PKZip 1.x are not supported |
| 12 | |
| 13 | |
| 14 | I WAIT FEEDBACK at mail info@winimage.com |
| 15 | Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution |
| 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 | |
| 38 | /* for more info about .ZIP format, see |
| 39 | http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip |
| 40 | http://www.info-zip.org/pub/infozip/doc/ |
| 41 | PkWare has also a specification at : |
| 42 | ftp://ftp.pkware.com/probdesc.zip |
| 43 | */ |
| 44 | |
| 45 | #ifndef _unz_H |
| 46 | #define _unz_H |
| 47 | |
| 48 | // This needs to be outside of the extern "C" when using Qt's zlib |
| 49 | #ifndef _ZLIB_H |
| 50 | #include "zlib.h" |
| 51 | #endif |
| 52 | |
| 53 | #ifdef __cplusplus |
| 54 | extern "C" { |
| 55 | #endif |
| 56 | |
| 57 | #ifndef _ZLIBIOAPI_H |
| 58 | #include <contrib/unzip/ioapi.h> |
| 59 | #endif |
| 60 | |
| 61 | #if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP) |
| 62 | /* like the STRICT of WIN32, we define a pointer that cannot be converted |
| 63 | from (void*) without cast */ |
| 64 | typedef struct TagunzFile__ { int unused; } unzFile__; |
| 65 | typedef unzFile__ *unzFile; |
| 66 | #else |
| 67 | typedef voidp unzFile; |
| 68 | #endif |
| 69 | |
| 70 | |
| 71 | #define UNZ_OK (0) |
| 72 | #define UNZ_END_OF_LIST_OF_FILE (-100) |
| 73 | #define UNZ_ERRNO (Z_ERRNO) |
| 74 | #define UNZ_EOF (0) |
| 75 | #define UNZ_PARAMERROR (-102) |
| 76 | #define UNZ_BADZIPFILE (-103) |
| 77 | #define UNZ_INTERNALERROR (-104) |
| 78 | #define UNZ_CRCERROR (-105) |
| 79 | |
| 80 | /* tm_unz contain date/time info */ |
| 81 | typedef struct tm_unz_s |
| 82 | { |
| 83 | uInt tm_sec; /* seconds after the minute - [0,59] */ |
| 84 | uInt tm_min; /* minutes after the hour - [0,59] */ |
| 85 | uInt tm_hour; /* hours since midnight - [0,23] */ |
| 86 | uInt tm_mday; /* day of the month - [1,31] */ |
| 87 | uInt tm_mon; /* months since January - [0,11] */ |
| 88 | uInt tm_year; /* years - [1980..2044] */ |
| 89 | } tm_unz; |
| 90 | |
| 91 | /* unz_global_info structure contain global data about the ZIPfile |
| 92 | These data comes from the end of central dir */ |
| 93 | typedef struct unz_global_info_s |
| 94 | { |
| 95 | uLong number_entry; /* total number of entries in |
| 96 | the central dir on this disk */ |
| 97 | uLong ; /* size of the global comment of the zipfile */ |
| 98 | } unz_global_info; |
| 99 | |
| 100 | |
| 101 | /* unz_file_info contain information about a file in the zipfile */ |
| 102 | typedef struct unz_file_info_s |
| 103 | { |
| 104 | uLong version; /* version made by 2 bytes */ |
| 105 | uLong version_needed; /* version needed to extract 2 bytes */ |
| 106 | uLong flag; /* general purpose bit flag 2 bytes */ |
| 107 | uLong compression_method; /* compression method 2 bytes */ |
| 108 | uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ |
| 109 | uLong crc; /* crc-32 4 bytes */ |
| 110 | uLong compressed_size; /* compressed size 4 bytes */ |
| 111 | uLong uncompressed_size; /* uncompressed size 4 bytes */ |
| 112 | uLong size_filename; /* filename length 2 bytes */ |
| 113 | uLong ; /* extra field length 2 bytes */ |
| 114 | uLong ; /* file comment length 2 bytes */ |
| 115 | |
| 116 | uLong disk_num_start; /* disk number start 2 bytes */ |
| 117 | uLong internal_fa; /* internal file attributes 2 bytes */ |
| 118 | uLong external_fa; /* external file attributes 4 bytes */ |
| 119 | |
| 120 | tm_unz tmu_date; |
| 121 | } unz_file_info; |
| 122 | |
| 123 | extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1, |
| 124 | const char* fileName2, |
| 125 | int iCaseSensitivity)); |
| 126 | /* |
| 127 | Compare two filename (fileName1,fileName2). |
| 128 | If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) |
| 129 | If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi |
| 130 | or strcasecmp) |
| 131 | If iCaseSenisivity = 0, case sensitivity is defaut of your operating system |
| 132 | (like 1 on Unix, 2 on Windows) |
| 133 | */ |
| 134 | |
| 135 | |
| 136 | extern unzFile ZEXPORT unzOpen OF((const char *path)); |
| 137 | /* |
| 138 | Open a Zip file. path contain the full pathname (by example, |
| 139 | on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer |
| 140 | "zlib/zlib113.zip". |
| 141 | If the zipfile cannot be opened (file don't exist or in not valid), the |
| 142 | return value is NULL. |
| 143 | Else, the return value is a unzFile Handle, usable with other function |
| 144 | of this unzip package. |
| 145 | */ |
| 146 | |
| 147 | extern unzFile ZEXPORT unzOpen2 OF((const char *path, |
| 148 | zlib_filefunc_def* pzlib_filefunc_def)); |
| 149 | /* |
| 150 | Open a Zip file, like unzOpen, but provide a set of file low level API |
| 151 | for read/write the zip file (see ioapi.h) |
| 152 | */ |
| 153 | |
| 154 | extern int ZEXPORT unzClose OF((unzFile file)); |
| 155 | /* |
| 156 | Close a ZipFile opened with unzipOpen. |
| 157 | If there is files inside the .Zip opened with unzOpenCurrentFile (see later), |
| 158 | these files MUST be closed with unzipCloseCurrentFile before call unzipClose. |
| 159 | return UNZ_OK if there is no problem. */ |
| 160 | |
| 161 | extern int ZEXPORT unzGetGlobalInfo OF((unzFile file, |
| 162 | unz_global_info *pglobal_info)); |
| 163 | /* |
| 164 | Write info about the ZipFile in the *pglobal_info structure. |
| 165 | No preparation of the structure is needed |
| 166 | return UNZ_OK if there is no problem. */ |
| 167 | |
| 168 | |
| 169 | extern int ZEXPORT OF((unzFile file, |
| 170 | char *, |
| 171 | uLong uSizeBuf)); |
| 172 | /* |
| 173 | Get the global comment string of the ZipFile, in the szComment buffer. |
| 174 | uSizeBuf is the size of the szComment buffer. |
| 175 | return the number of byte copied or an error code <0 |
| 176 | */ |
| 177 | |
| 178 | |
| 179 | /***************************************************************************/ |
| 180 | /* Unzip package allow you browse the directory of the zipfile */ |
| 181 | |
| 182 | extern int ZEXPORT unzGoToFirstFile OF((unzFile file)); |
| 183 | /* |
| 184 | Set the current file of the zipfile to the first file. |
| 185 | return UNZ_OK if there is no problem |
| 186 | */ |
| 187 | |
| 188 | extern int ZEXPORT unzGoToNextFile OF((unzFile file)); |
| 189 | /* |
| 190 | Set the current file of the zipfile to the next file. |
| 191 | return UNZ_OK if there is no problem |
| 192 | return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. |
| 193 | */ |
| 194 | |
| 195 | extern int ZEXPORT unzLocateFile OF((unzFile file, |
| 196 | const char *szFileName, |
| 197 | int iCaseSensitivity)); |
| 198 | /* |
| 199 | Try locate the file szFileName in the zipfile. |
| 200 | For the iCaseSensitivity signification, see unzStringFileNameCompare |
| 201 | |
| 202 | return value : |
| 203 | UNZ_OK if the file is found. It becomes the current file. |
| 204 | UNZ_END_OF_LIST_OF_FILE if the file is not found |
| 205 | */ |
| 206 | |
| 207 | |
| 208 | /* ****************************************** */ |
| 209 | /* Ryan supplied functions */ |
| 210 | /* unz_file_info contain information about a file in the zipfile */ |
| 211 | typedef struct unz_file_pos_s |
| 212 | { |
| 213 | uLong pos_in_zip_directory; /* offset in zip file directory */ |
| 214 | uLong num_of_file; /* # of file */ |
| 215 | } unz_file_pos; |
| 216 | |
| 217 | extern int ZEXPORT unzGetFilePos( |
| 218 | unzFile file, |
| 219 | unz_file_pos* file_pos); |
| 220 | |
| 221 | extern int ZEXPORT unzGoToFilePos( |
| 222 | unzFile file, |
| 223 | unz_file_pos* file_pos); |
| 224 | |
| 225 | /* ****************************************** */ |
| 226 | |
| 227 | extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file, |
| 228 | unz_file_info *pfile_info, |
| 229 | char *szFileName, |
| 230 | uLong fileNameBufferSize, |
| 231 | void *, |
| 232 | uLong , |
| 233 | char *, |
| 234 | uLong )); |
| 235 | /* |
| 236 | Get Info about the current file |
| 237 | if pfile_info!=NULL, the *pfile_info structure will contain somes info about |
| 238 | the current file |
| 239 | if szFileName!=NULL, the filemane string will be copied in szFileName |
| 240 | (fileNameBufferSize is the size of the buffer) |
| 241 | if extraField!=NULL, the extra field information will be copied in extraField |
| 242 | (extraFieldBufferSize is the size of the buffer). |
| 243 | This is the Central-header version of the extra field |
| 244 | if szComment!=NULL, the comment string of the file will be copied in szComment |
| 245 | (commentBufferSize is the size of the buffer) |
| 246 | */ |
| 247 | |
| 248 | /***************************************************************************/ |
| 249 | /* for reading the content of the current zipfile, you can open it, read data |
| 250 | from it, and close it (you can close it before reading all the file) |
| 251 | */ |
| 252 | |
| 253 | extern int ZEXPORT unzOpenCurrentFile OF((unzFile file)); |
| 254 | /* |
| 255 | Open for reading data the current file in the zipfile. |
| 256 | If there is no error, the return value is UNZ_OK. |
| 257 | */ |
| 258 | |
| 259 | extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file, |
| 260 | const char* password)); |
| 261 | /* |
| 262 | Open for reading data the current file in the zipfile. |
| 263 | password is a crypting password |
| 264 | If there is no error, the return value is UNZ_OK. |
| 265 | */ |
| 266 | |
| 267 | extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file, |
| 268 | int* method, |
| 269 | int* level, |
| 270 | int raw)); |
| 271 | /* |
| 272 | Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) |
| 273 | if raw==1 |
| 274 | *method will receive method of compression, *level will receive level of |
| 275 | compression |
| 276 | note : you can set level parameter as NULL (if you did not want known level, |
| 277 | but you CANNOT set method parameter as NULL |
| 278 | */ |
| 279 | |
| 280 | extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file, |
| 281 | int* method, |
| 282 | int* level, |
| 283 | int raw, |
| 284 | const char* password)); |
| 285 | /* |
| 286 | Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) |
| 287 | if raw==1 |
| 288 | *method will receive method of compression, *level will receive level of |
| 289 | compression |
| 290 | note : you can set level parameter as NULL (if you did not want known level, |
| 291 | but you CANNOT set method parameter as NULL |
| 292 | */ |
| 293 | |
| 294 | |
| 295 | extern int ZEXPORT unzCloseCurrentFile OF((unzFile file)); |
| 296 | /* |
| 297 | Close the file in zip opened with unzOpenCurrentFile |
| 298 | Return UNZ_CRCERROR if all the file was read but the CRC is not good |
| 299 | */ |
| 300 | |
| 301 | extern int ZEXPORT unzReadCurrentFile OF((unzFile file, |
| 302 | voidp buf, |
| 303 | unsigned len)); |
| 304 | /* |
| 305 | Read bytes from the current file (opened by unzOpenCurrentFile) |
| 306 | buf contain buffer where data must be copied |
| 307 | len the size of buf. |
| 308 | |
| 309 | return the number of byte copied if somes bytes are copied |
| 310 | return 0 if the end of file was reached |
| 311 | return <0 with error code if there is an error |
| 312 | (UNZ_ERRNO for IO error, or zLib error for uncompress error) |
| 313 | */ |
| 314 | |
| 315 | extern z_off_t ZEXPORT unztell OF((unzFile file)); |
| 316 | /* |
| 317 | Give the current position in uncompressed data |
| 318 | */ |
| 319 | |
| 320 | extern int ZEXPORT unzeof OF((unzFile file)); |
| 321 | /* |
| 322 | return 1 if the end of file was reached, 0 elsewhere |
| 323 | */ |
| 324 | |
| 325 | extern int ZEXPORT OF((unzFile file, |
| 326 | voidp buf, |
| 327 | unsigned len)); |
| 328 | /* |
| 329 | Read extra field from the current file (opened by unzOpenCurrentFile) |
| 330 | This is the local-header version of the extra field (sometimes, there is |
| 331 | more info in the local-header version than in the central-header) |
| 332 | |
| 333 | if buf==NULL, it return the size of the local extra field |
| 334 | |
| 335 | if buf!=NULL, len is the size of the buffer, the extra header is copied in |
| 336 | buf. |
| 337 | the return value is the number of bytes copied in buf, or (if <0) |
| 338 | the error code |
| 339 | */ |
| 340 | |
| 341 | /***************************************************************************/ |
| 342 | |
| 343 | /* Get the current file offset */ |
| 344 | extern uLong ZEXPORT unzGetOffset (unzFile file); |
| 345 | |
| 346 | /* Set the current file offset */ |
| 347 | extern int ZEXPORT unzSetOffset (unzFile file, uLong pos); |
| 348 | |
| 349 | |
| 350 | |
| 351 | #ifdef __cplusplus |
| 352 | } |
| 353 | #endif |
| 354 | |
| 355 | #endif /* _unz_H */ |
| 356 | |