| 1 | /* zip.c -- IO on .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 for Zip64 support |
| 8 | Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) |
| 9 | |
| 10 | For more info read MiniZip_info.txt |
| 11 | |
| 12 | Changes |
| 13 | Oct-2009 - Mathias Svensson - Remove old C style function prototypes |
| 14 | Oct-2009 - Mathias Svensson - Added Zip64 Support when creating new file archives |
| 15 | Oct-2009 - Mathias Svensson - Did some code cleanup and refactoring to get better overview of some functions. |
| 16 | Oct-2009 - Mathias Svensson - Added zipRemoveExtraInfoBlock to strip extra field data from its ZIP64 data |
| 17 | It is used when recreating zip archive with RAW when deleting items from a zip. |
| 18 | ZIP64 data is automatically added to items that needs it, and existing ZIP64 data need to be removed. |
| 19 | Oct-2009 - Mathias Svensson - Added support for BZIP2 as compression mode (bzip2 lib is required) |
| 20 | Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer |
| 21 | |
| 22 | */ |
| 23 | |
| 24 | |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <string.h> |
| 28 | #include <stdint.h> |
| 29 | #include <time.h> |
| 30 | #include "zlib.h" |
| 31 | #include "zip.h" |
| 32 | |
| 33 | #ifdef STDC |
| 34 | # include <stddef.h> |
| 35 | #endif |
| 36 | #ifdef NO_ERRNO_H |
| 37 | extern int errno; |
| 38 | #else |
| 39 | # include <errno.h> |
| 40 | #endif |
| 41 | |
| 42 | |
| 43 | #ifndef local |
| 44 | # define local static |
| 45 | #endif |
| 46 | /* compile with -Dlocal if your debugger can't find static symbols */ |
| 47 | |
| 48 | #ifndef VERSIONMADEBY |
| 49 | # define VERSIONMADEBY (0x0) /* platform dependent */ |
| 50 | #endif |
| 51 | |
| 52 | #ifndef Z_BUFSIZE |
| 53 | #define Z_BUFSIZE (64*1024) //(16384) |
| 54 | #endif |
| 55 | |
| 56 | #ifndef Z_MAXFILENAMEINZIP |
| 57 | #define Z_MAXFILENAMEINZIP (256) |
| 58 | #endif |
| 59 | |
| 60 | #ifndef ALLOC |
| 61 | # define ALLOC(size) (malloc(size)) |
| 62 | #endif |
| 63 | |
| 64 | /* |
| 65 | #define SIZECENTRALDIRITEM (0x2e) |
| 66 | #define SIZEZIPLOCALHEADER (0x1e) |
| 67 | */ |
| 68 | |
| 69 | /* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ |
| 70 | |
| 71 | |
| 72 | // NOT sure that this work on ALL platform |
| 73 | #define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32)) |
| 74 | |
| 75 | #ifndef SEEK_CUR |
| 76 | #define SEEK_CUR 1 |
| 77 | #endif |
| 78 | |
| 79 | #ifndef SEEK_END |
| 80 | #define SEEK_END 2 |
| 81 | #endif |
| 82 | |
| 83 | #ifndef SEEK_SET |
| 84 | #define SEEK_SET 0 |
| 85 | #endif |
| 86 | |
| 87 | #ifndef DEF_MEM_LEVEL |
| 88 | #if MAX_MEM_LEVEL >= 8 |
| 89 | # define DEF_MEM_LEVEL 8 |
| 90 | #else |
| 91 | # define DEF_MEM_LEVEL MAX_MEM_LEVEL |
| 92 | #endif |
| 93 | #endif |
| 94 | const char zip_copyright[] =" zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; |
| 95 | |
| 96 | |
| 97 | #define SIZEDATA_INDATABLOCK (4096-(4*4)) |
| 98 | |
| 99 | #define LOCALHEADERMAGIC (0x04034b50) |
| 100 | #define CENTRALHEADERMAGIC (0x02014b50) |
| 101 | #define ENDHEADERMAGIC (0x06054b50) |
| 102 | #define ZIP64ENDHEADERMAGIC (0x6064b50) |
| 103 | #define ZIP64ENDLOCHEADERMAGIC (0x7064b50) |
| 104 | |
| 105 | #define FLAG_LOCALHEADER_OFFSET (0x06) |
| 106 | #define CRC_LOCALHEADER_OFFSET (0x0e) |
| 107 | |
| 108 | #define SIZECENTRALHEADER (0x2e) /* 46 */ |
| 109 | |
| 110 | typedef struct linkedlist_datablock_internal_s |
| 111 | { |
| 112 | struct linkedlist_datablock_internal_s* next_datablock; |
| 113 | uLong avail_in_this_block; |
| 114 | uLong filled_in_this_block; |
| 115 | uLong unused; /* for future use and alignment */ |
| 116 | unsigned char data[SIZEDATA_INDATABLOCK]; |
| 117 | } linkedlist_datablock_internal; |
| 118 | |
| 119 | typedef struct linkedlist_data_s |
| 120 | { |
| 121 | linkedlist_datablock_internal* first_block; |
| 122 | linkedlist_datablock_internal* last_block; |
| 123 | } linkedlist_data; |
| 124 | |
| 125 | |
| 126 | typedef struct |
| 127 | { |
| 128 | z_stream stream; /* zLib stream structure for inflate */ |
| 129 | #ifdef HAVE_BZIP2 |
| 130 | bz_stream bstream; /* bzLib stream structure for bziped */ |
| 131 | #endif |
| 132 | |
| 133 | int stream_initialised; /* 1 is stream is initialised */ |
| 134 | uInt pos_in_buffered_data; /* last written byte in buffered_data */ |
| 135 | |
| 136 | ZPOS64_T pos_local_header; /* offset of the local header of the file |
| 137 | currently writing */ |
| 138 | char* central_header; /* central header data for the current file */ |
| 139 | uLong size_centralExtra; |
| 140 | uLong size_centralheader; /* size of the central header for cur file */ |
| 141 | uLong size_centralExtraFree; /* Extra bytes allocated to the centralheader but that are not used */ |
| 142 | uLong flag; /* flag of the file currently writing */ |
| 143 | |
| 144 | int method; /* compression method of file currently wr.*/ |
| 145 | int raw; /* 1 for directly writing raw data */ |
| 146 | Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/ |
| 147 | uLong dosDate; |
| 148 | uLong crc32; |
| 149 | int encrypt; |
| 150 | int zip64; /* Add ZIP64 extended information in the extra field */ |
| 151 | ZPOS64_T pos_zip64extrainfo; |
| 152 | ZPOS64_T totalCompressedData; |
| 153 | ZPOS64_T totalUncompressedData; |
| 154 | #ifndef NOCRYPT |
| 155 | unsigned long keys[3]; /* keys defining the pseudo-random sequence */ |
| 156 | const z_crc_t* pcrc_32_tab; |
| 157 | unsigned crypt_header_size; |
| 158 | #endif |
| 159 | } curfile64_info; |
| 160 | |
| 161 | typedef struct |
| 162 | { |
| 163 | zlib_filefunc64_32_def z_filefunc; |
| 164 | voidpf filestream; /* io structure of the zipfile */ |
| 165 | linkedlist_data central_dir;/* datablock with central dir in construction*/ |
| 166 | int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/ |
| 167 | curfile64_info ci; /* info on the file currently writing */ |
| 168 | |
| 169 | ZPOS64_T begin_pos; /* position of the beginning of the zipfile */ |
| 170 | ZPOS64_T add_position_when_writing_offset; |
| 171 | ZPOS64_T number_entry; |
| 172 | |
| 173 | #ifndef NO_ADDFILEINEXISTINGZIP |
| 174 | char *globalcomment; |
| 175 | #endif |
| 176 | |
| 177 | } zip64_internal; |
| 178 | |
| 179 | |
| 180 | #ifndef NOCRYPT |
| 181 | #define INCLUDECRYPTINGCODE_IFCRYPTALLOWED |
| 182 | #include "crypt.h" |
| 183 | #endif |
| 184 | |
| 185 | local linkedlist_datablock_internal* allocate_new_datablock(void) { |
| 186 | linkedlist_datablock_internal* ldi; |
| 187 | ldi = (linkedlist_datablock_internal*) |
| 188 | ALLOC(sizeof(linkedlist_datablock_internal)); |
| 189 | if (ldi!=NULL) |
| 190 | { |
| 191 | ldi->next_datablock = NULL ; |
| 192 | ldi->filled_in_this_block = 0 ; |
| 193 | ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ; |
| 194 | } |
| 195 | return ldi; |
| 196 | } |
| 197 | |
| 198 | local void free_datablock(linkedlist_datablock_internal* ldi) { |
| 199 | while (ldi!=NULL) |
| 200 | { |
| 201 | linkedlist_datablock_internal* ldinext = ldi->next_datablock; |
| 202 | free(ldi); |
| 203 | ldi = ldinext; |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | local void init_linkedlist(linkedlist_data* ll) { |
| 208 | ll->first_block = ll->last_block = NULL; |
| 209 | } |
| 210 | |
| 211 | local void free_linkedlist(linkedlist_data* ll) { |
| 212 | free_datablock(ll->first_block); |
| 213 | ll->first_block = ll->last_block = NULL; |
| 214 | } |
| 215 | |
| 216 | |
| 217 | local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len) { |
| 218 | linkedlist_datablock_internal* ldi; |
| 219 | const unsigned char* from_copy; |
| 220 | |
| 221 | if (ll==NULL) |
| 222 | return ZIP_INTERNALERROR; |
| 223 | |
| 224 | if (ll->last_block == NULL) |
| 225 | { |
| 226 | ll->first_block = ll->last_block = allocate_new_datablock(); |
| 227 | if (ll->first_block == NULL) |
| 228 | return ZIP_INTERNALERROR; |
| 229 | } |
| 230 | |
| 231 | ldi = ll->last_block; |
| 232 | from_copy = (const unsigned char*)buf; |
| 233 | |
| 234 | while (len>0) |
| 235 | { |
| 236 | uInt copy_this; |
| 237 | uInt i; |
| 238 | unsigned char* to_copy; |
| 239 | |
| 240 | if (ldi->avail_in_this_block==0) |
| 241 | { |
| 242 | ldi->next_datablock = allocate_new_datablock(); |
| 243 | if (ldi->next_datablock == NULL) |
| 244 | return ZIP_INTERNALERROR; |
| 245 | ldi = ldi->next_datablock ; |
| 246 | ll->last_block = ldi; |
| 247 | } |
| 248 | |
| 249 | if (ldi->avail_in_this_block < len) |
| 250 | copy_this = (uInt)ldi->avail_in_this_block; |
| 251 | else |
| 252 | copy_this = (uInt)len; |
| 253 | |
| 254 | to_copy = &(ldi->data[ldi->filled_in_this_block]); |
| 255 | |
| 256 | for (i=0;i<copy_this;i++) |
| 257 | *(to_copy+i)=*(from_copy+i); |
| 258 | |
| 259 | ldi->filled_in_this_block += copy_this; |
| 260 | ldi->avail_in_this_block -= copy_this; |
| 261 | from_copy += copy_this ; |
| 262 | len -= copy_this; |
| 263 | } |
| 264 | return ZIP_OK; |
| 265 | } |
| 266 | |
| 267 | |
| 268 | |
| 269 | /****************************************************************************/ |
| 270 | |
| 271 | #ifndef NO_ADDFILEINEXISTINGZIP |
| 272 | /* =========================================================================== |
| 273 | Inputs a long in LSB order to the given file |
| 274 | nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T) |
| 275 | */ |
| 276 | |
| 277 | local int zip64local_putValue(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte) { |
| 278 | unsigned char buf[8]; |
| 279 | int n; |
| 280 | for (n = 0; n < nbByte; n++) |
| 281 | { |
| 282 | buf[n] = (unsigned char)(x & 0xff); |
| 283 | x >>= 8; |
| 284 | } |
| 285 | if (x != 0) |
| 286 | { /* data overflow - hack for ZIP64 (X Roche) */ |
| 287 | for (n = 0; n < nbByte; n++) |
| 288 | { |
| 289 | buf[n] = 0xff; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,(uLong)nbByte)!=(uLong)nbByte) |
| 294 | return ZIP_ERRNO; |
| 295 | else |
| 296 | return ZIP_OK; |
| 297 | } |
| 298 | |
| 299 | local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte) { |
| 300 | unsigned char* buf=(unsigned char*)dest; |
| 301 | int n; |
| 302 | for (n = 0; n < nbByte; n++) { |
| 303 | buf[n] = (unsigned char)(x & 0xff); |
| 304 | x >>= 8; |
| 305 | } |
| 306 | |
| 307 | if (x != 0) |
| 308 | { /* data overflow - hack for ZIP64 */ |
| 309 | for (n = 0; n < nbByte; n++) |
| 310 | { |
| 311 | buf[n] = 0xff; |
| 312 | } |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | /****************************************************************************/ |
| 317 | |
| 318 | |
| 319 | local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm) { |
| 320 | uLong year = (uLong)ptm->tm_year; |
| 321 | if (year>=1980) |
| 322 | year-=1980; |
| 323 | else if (year>=80) |
| 324 | year-=80; |
| 325 | return |
| 326 | (uLong) (((uLong)(ptm->tm_mday) + (32 * (uLong)(ptm->tm_mon+1)) + (512 * year)) << 16) | |
| 327 | (((uLong)ptm->tm_sec/2) + (32 * (uLong)ptm->tm_min) + (2048 * (uLong)ptm->tm_hour)); |
| 328 | } |
| 329 | |
| 330 | |
| 331 | /****************************************************************************/ |
| 332 | |
| 333 | local int zip64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int* pi) { |
| 334 | unsigned char c; |
| 335 | int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1); |
| 336 | if (err==1) |
| 337 | { |
| 338 | *pi = (int)c; |
| 339 | return ZIP_OK; |
| 340 | } |
| 341 | else |
| 342 | { |
| 343 | if (ZERROR64(*pzlib_filefunc_def,filestream)) |
| 344 | return ZIP_ERRNO; |
| 345 | else |
| 346 | return ZIP_EOF; |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | |
| 351 | /* =========================================================================== |
| 352 | Reads a long in LSB order from the given gz_stream. Sets |
| 353 | */ |
| 354 | local int zip64local_getShort(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) { |
| 355 | uLong x ; |
| 356 | int i = 0; |
| 357 | int err; |
| 358 | |
| 359 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 360 | x = (uLong)i; |
| 361 | |
| 362 | if (err==ZIP_OK) |
| 363 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 364 | x += ((uLong)i)<<8; |
| 365 | |
| 366 | if (err==ZIP_OK) |
| 367 | *pX = x; |
| 368 | else |
| 369 | *pX = 0; |
| 370 | return err; |
| 371 | } |
| 372 | |
| 373 | local int zip64local_getLong(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) { |
| 374 | uLong x ; |
| 375 | int i = 0; |
| 376 | int err; |
| 377 | |
| 378 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 379 | x = (uLong)i; |
| 380 | |
| 381 | if (err==ZIP_OK) |
| 382 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 383 | x += ((uLong)i)<<8; |
| 384 | |
| 385 | if (err==ZIP_OK) |
| 386 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 387 | x += ((uLong)i)<<16; |
| 388 | |
| 389 | if (err==ZIP_OK) |
| 390 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 391 | x += ((uLong)i)<<24; |
| 392 | |
| 393 | if (err==ZIP_OK) |
| 394 | *pX = x; |
| 395 | else |
| 396 | *pX = 0; |
| 397 | return err; |
| 398 | } |
| 399 | |
| 400 | |
| 401 | local int zip64local_getLong64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX) { |
| 402 | ZPOS64_T x; |
| 403 | int i = 0; |
| 404 | int err; |
| 405 | |
| 406 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 407 | x = (ZPOS64_T)i; |
| 408 | |
| 409 | if (err==ZIP_OK) |
| 410 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 411 | x += ((ZPOS64_T)i)<<8; |
| 412 | |
| 413 | if (err==ZIP_OK) |
| 414 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 415 | x += ((ZPOS64_T)i)<<16; |
| 416 | |
| 417 | if (err==ZIP_OK) |
| 418 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 419 | x += ((ZPOS64_T)i)<<24; |
| 420 | |
| 421 | if (err==ZIP_OK) |
| 422 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 423 | x += ((ZPOS64_T)i)<<32; |
| 424 | |
| 425 | if (err==ZIP_OK) |
| 426 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 427 | x += ((ZPOS64_T)i)<<40; |
| 428 | |
| 429 | if (err==ZIP_OK) |
| 430 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 431 | x += ((ZPOS64_T)i)<<48; |
| 432 | |
| 433 | if (err==ZIP_OK) |
| 434 | err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| 435 | x += ((ZPOS64_T)i)<<56; |
| 436 | |
| 437 | if (err==ZIP_OK) |
| 438 | *pX = x; |
| 439 | else |
| 440 | *pX = 0; |
| 441 | |
| 442 | return err; |
| 443 | } |
| 444 | |
| 445 | #ifndef BUFREADCOMMENT |
| 446 | #define BUFREADCOMMENT (0x400) |
| 447 | #endif |
| 448 | /* |
| 449 | Locate the Central directory of a zipfile (at the end, just before |
| 450 | the global comment) |
| 451 | */ |
| 452 | local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) { |
| 453 | unsigned char* buf; |
| 454 | ZPOS64_T uSizeFile; |
| 455 | ZPOS64_T uBackRead; |
| 456 | ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ |
| 457 | ZPOS64_T uPosFound=0; |
| 458 | |
| 459 | if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) |
| 460 | return 0; |
| 461 | |
| 462 | |
| 463 | uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); |
| 464 | |
| 465 | if (uMaxBack>uSizeFile) |
| 466 | uMaxBack = uSizeFile; |
| 467 | |
| 468 | buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); |
| 469 | if (buf==NULL) |
| 470 | return 0; |
| 471 | |
| 472 | uBackRead = 4; |
| 473 | while (uBackRead<uMaxBack) |
| 474 | { |
| 475 | uLong uReadSize; |
| 476 | ZPOS64_T uReadPos ; |
| 477 | int i; |
| 478 | if (uBackRead+BUFREADCOMMENT>uMaxBack) |
| 479 | uBackRead = uMaxBack; |
| 480 | else |
| 481 | uBackRead+=BUFREADCOMMENT; |
| 482 | uReadPos = uSizeFile-uBackRead ; |
| 483 | |
| 484 | uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? |
| 485 | (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); |
| 486 | if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 487 | break; |
| 488 | |
| 489 | if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) |
| 490 | break; |
| 491 | |
| 492 | for (i=(int)uReadSize-3; (i--)>0;) |
| 493 | if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && |
| 494 | ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) |
| 495 | { |
| 496 | uPosFound = uReadPos+(unsigned)i; |
| 497 | break; |
| 498 | } |
| 499 | |
| 500 | if (uPosFound!=0) |
| 501 | break; |
| 502 | } |
| 503 | free(buf); |
| 504 | return uPosFound; |
| 505 | } |
| 506 | |
| 507 | /* |
| 508 | Locate the End of Zip64 Central directory locator and from there find the CD of a zipfile (at the end, just before |
| 509 | the global comment) |
| 510 | */ |
| 511 | local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) { |
| 512 | unsigned char* buf; |
| 513 | ZPOS64_T uSizeFile; |
| 514 | ZPOS64_T uBackRead; |
| 515 | ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ |
| 516 | ZPOS64_T uPosFound=0; |
| 517 | uLong uL; |
| 518 | ZPOS64_T relativeOffset; |
| 519 | |
| 520 | if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) |
| 521 | return 0; |
| 522 | |
| 523 | uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); |
| 524 | |
| 525 | if (uMaxBack>uSizeFile) |
| 526 | uMaxBack = uSizeFile; |
| 527 | |
| 528 | buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); |
| 529 | if (buf==NULL) |
| 530 | return 0; |
| 531 | |
| 532 | uBackRead = 4; |
| 533 | while (uBackRead<uMaxBack) |
| 534 | { |
| 535 | uLong uReadSize; |
| 536 | ZPOS64_T uReadPos; |
| 537 | int i; |
| 538 | if (uBackRead+BUFREADCOMMENT>uMaxBack) |
| 539 | uBackRead = uMaxBack; |
| 540 | else |
| 541 | uBackRead+=BUFREADCOMMENT; |
| 542 | uReadPos = uSizeFile-uBackRead ; |
| 543 | |
| 544 | uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? |
| 545 | (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); |
| 546 | if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 547 | break; |
| 548 | |
| 549 | if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) |
| 550 | break; |
| 551 | |
| 552 | for (i=(int)uReadSize-3; (i--)>0;) |
| 553 | { |
| 554 | // Signature "0x07064b50" Zip64 end of central directory locater |
| 555 | if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07)) |
| 556 | { |
| 557 | uPosFound = uReadPos+(unsigned)i; |
| 558 | break; |
| 559 | } |
| 560 | } |
| 561 | |
| 562 | if (uPosFound!=0) |
| 563 | break; |
| 564 | } |
| 565 | |
| 566 | free(buf); |
| 567 | if (uPosFound == 0) |
| 568 | return 0; |
| 569 | |
| 570 | /* Zip64 end of central directory locator */ |
| 571 | if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 572 | return 0; |
| 573 | |
| 574 | /* the signature, already checked */ |
| 575 | if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) |
| 576 | return 0; |
| 577 | |
| 578 | /* number of the disk with the start of the zip64 end of central directory */ |
| 579 | if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) |
| 580 | return 0; |
| 581 | if (uL != 0) |
| 582 | return 0; |
| 583 | |
| 584 | /* relative offset of the zip64 end of central directory record */ |
| 585 | if (zip64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=ZIP_OK) |
| 586 | return 0; |
| 587 | |
| 588 | /* total number of disks */ |
| 589 | if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) |
| 590 | return 0; |
| 591 | if (uL != 1) |
| 592 | return 0; |
| 593 | |
| 594 | /* Goto Zip64 end of central directory record */ |
| 595 | if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 596 | return 0; |
| 597 | |
| 598 | /* the signature */ |
| 599 | if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) |
| 600 | return 0; |
| 601 | |
| 602 | if (uL != 0x06064b50) // signature of 'Zip64 end of central directory' |
| 603 | return 0; |
| 604 | |
| 605 | return relativeOffset; |
| 606 | } |
| 607 | |
| 608 | local int LoadCentralDirectoryRecord(zip64_internal* pziinit) { |
| 609 | int err=ZIP_OK; |
| 610 | ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ |
| 611 | |
| 612 | ZPOS64_T size_central_dir; /* size of the central directory */ |
| 613 | ZPOS64_T offset_central_dir; /* offset of start of central directory */ |
| 614 | ZPOS64_T central_pos; |
| 615 | uLong uL; |
| 616 | |
| 617 | uLong number_disk; /* number of the current disk, used for |
| 618 | spanning ZIP, unsupported, always 0*/ |
| 619 | uLong number_disk_with_CD; /* number of the disk with central dir, used |
| 620 | for spanning ZIP, unsupported, always 0*/ |
| 621 | ZPOS64_T number_entry; |
| 622 | ZPOS64_T number_entry_CD; /* total number of entries in |
| 623 | the central dir |
| 624 | (same than number_entry on nospan) */ |
| 625 | uLong VersionMadeBy; |
| 626 | uLong VersionNeeded; |
| 627 | uLong size_comment; |
| 628 | |
| 629 | int hasZIP64Record = 0; |
| 630 | |
| 631 | // check first if we find a ZIP64 record |
| 632 | central_pos = zip64local_SearchCentralDir64(&pziinit->z_filefunc,pziinit->filestream); |
| 633 | if(central_pos > 0) |
| 634 | { |
| 635 | hasZIP64Record = 1; |
| 636 | } |
| 637 | else if(central_pos == 0) |
| 638 | { |
| 639 | central_pos = zip64local_SearchCentralDir(&pziinit->z_filefunc,pziinit->filestream); |
| 640 | } |
| 641 | |
| 642 | /* disable to allow appending to empty ZIP archive |
| 643 | if (central_pos==0) |
| 644 | err=ZIP_ERRNO; |
| 645 | */ |
| 646 | |
| 647 | if(hasZIP64Record) |
| 648 | { |
| 649 | ZPOS64_T sizeEndOfCentralDirectory; |
| 650 | if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) |
| 651 | err=ZIP_ERRNO; |
| 652 | |
| 653 | /* the signature, already checked */ |
| 654 | if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK) |
| 655 | err=ZIP_ERRNO; |
| 656 | |
| 657 | /* size of zip64 end of central directory record */ |
| 658 | if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &sizeEndOfCentralDirectory)!=ZIP_OK) |
| 659 | err=ZIP_ERRNO; |
| 660 | |
| 661 | /* version made by */ |
| 662 | if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionMadeBy)!=ZIP_OK) |
| 663 | err=ZIP_ERRNO; |
| 664 | |
| 665 | /* version needed to extract */ |
| 666 | if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionNeeded)!=ZIP_OK) |
| 667 | err=ZIP_ERRNO; |
| 668 | |
| 669 | /* number of this disk */ |
| 670 | if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK) |
| 671 | err=ZIP_ERRNO; |
| 672 | |
| 673 | /* number of the disk with the start of the central directory */ |
| 674 | if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK) |
| 675 | err=ZIP_ERRNO; |
| 676 | |
| 677 | /* total number of entries in the central directory on this disk */ |
| 678 | if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &number_entry)!=ZIP_OK) |
| 679 | err=ZIP_ERRNO; |
| 680 | |
| 681 | /* total number of entries in the central directory */ |
| 682 | if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&number_entry_CD)!=ZIP_OK) |
| 683 | err=ZIP_ERRNO; |
| 684 | |
| 685 | if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0)) |
| 686 | err=ZIP_BADZIPFILE; |
| 687 | |
| 688 | /* size of the central directory */ |
| 689 | if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&size_central_dir)!=ZIP_OK) |
| 690 | err=ZIP_ERRNO; |
| 691 | |
| 692 | /* offset of start of central directory with respect to the |
| 693 | starting disk number */ |
| 694 | if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&offset_central_dir)!=ZIP_OK) |
| 695 | err=ZIP_ERRNO; |
| 696 | |
| 697 | // TODO.. |
| 698 | // read the comment from the standard central header. |
| 699 | size_comment = 0; |
| 700 | } |
| 701 | else |
| 702 | { |
| 703 | // Read End of central Directory info |
| 704 | if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 705 | err=ZIP_ERRNO; |
| 706 | |
| 707 | /* the signature, already checked */ |
| 708 | if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK) |
| 709 | err=ZIP_ERRNO; |
| 710 | |
| 711 | /* number of this disk */ |
| 712 | if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK) |
| 713 | err=ZIP_ERRNO; |
| 714 | |
| 715 | /* number of the disk with the start of the central directory */ |
| 716 | if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK) |
| 717 | err=ZIP_ERRNO; |
| 718 | |
| 719 | /* total number of entries in the central dir on this disk */ |
| 720 | number_entry = 0; |
| 721 | if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) |
| 722 | err=ZIP_ERRNO; |
| 723 | else |
| 724 | number_entry = uL; |
| 725 | |
| 726 | /* total number of entries in the central dir */ |
| 727 | number_entry_CD = 0; |
| 728 | if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) |
| 729 | err=ZIP_ERRNO; |
| 730 | else |
| 731 | number_entry_CD = uL; |
| 732 | |
| 733 | if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0)) |
| 734 | err=ZIP_BADZIPFILE; |
| 735 | |
| 736 | /* size of the central directory */ |
| 737 | size_central_dir = 0; |
| 738 | if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) |
| 739 | err=ZIP_ERRNO; |
| 740 | else |
| 741 | size_central_dir = uL; |
| 742 | |
| 743 | /* offset of start of central directory with respect to the starting disk number */ |
| 744 | offset_central_dir = 0; |
| 745 | if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) |
| 746 | err=ZIP_ERRNO; |
| 747 | else |
| 748 | offset_central_dir = uL; |
| 749 | |
| 750 | |
| 751 | /* zipfile global comment length */ |
| 752 | if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &size_comment)!=ZIP_OK) |
| 753 | err=ZIP_ERRNO; |
| 754 | } |
| 755 | |
| 756 | if ((central_pos<offset_central_dir+size_central_dir) && |
| 757 | (err==ZIP_OK)) |
| 758 | err=ZIP_BADZIPFILE; |
| 759 | |
| 760 | if (err!=ZIP_OK) |
| 761 | { |
| 762 | ZCLOSE64(pziinit->z_filefunc, pziinit->filestream); |
| 763 | return ZIP_ERRNO; |
| 764 | } |
| 765 | |
| 766 | if (size_comment>0) |
| 767 | { |
| 768 | pziinit->globalcomment = (char*)ALLOC(size_comment+1); |
| 769 | if (pziinit->globalcomment) |
| 770 | { |
| 771 | size_comment = ZREAD64(pziinit->z_filefunc, pziinit->filestream, pziinit->globalcomment,size_comment); |
| 772 | pziinit->globalcomment[size_comment]=0; |
| 773 | } |
| 774 | } |
| 775 | |
| 776 | byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir); |
| 777 | pziinit->add_position_when_writing_offset = byte_before_the_zipfile; |
| 778 | |
| 779 | { |
| 780 | ZPOS64_T size_central_dir_to_read = size_central_dir; |
| 781 | size_t buf_size = SIZEDATA_INDATABLOCK; |
| 782 | void* buf_read = (void*)ALLOC(buf_size); |
| 783 | if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0) |
| 784 | err=ZIP_ERRNO; |
| 785 | |
| 786 | while ((size_central_dir_to_read>0) && (err==ZIP_OK)) |
| 787 | { |
| 788 | ZPOS64_T read_this = SIZEDATA_INDATABLOCK; |
| 789 | if (read_this > size_central_dir_to_read) |
| 790 | read_this = size_central_dir_to_read; |
| 791 | |
| 792 | if (ZREAD64(pziinit->z_filefunc, pziinit->filestream,buf_read,(uLong)read_this) != read_this) |
| 793 | err=ZIP_ERRNO; |
| 794 | |
| 795 | if (err==ZIP_OK) |
| 796 | err = add_data_in_datablock(&pziinit->central_dir,buf_read, (uLong)read_this); |
| 797 | |
| 798 | size_central_dir_to_read-=read_this; |
| 799 | } |
| 800 | free(buf_read); |
| 801 | } |
| 802 | pziinit->begin_pos = byte_before_the_zipfile; |
| 803 | pziinit->number_entry = number_entry_CD; |
| 804 | |
| 805 | if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET) != 0) |
| 806 | err=ZIP_ERRNO; |
| 807 | |
| 808 | return err; |
| 809 | } |
| 810 | |
| 811 | |
| 812 | #endif /* !NO_ADDFILEINEXISTINGZIP*/ |
| 813 | |
| 814 | |
| 815 | /************************************************************/ |
| 816 | extern zipFile ZEXPORT zipOpen3(const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def) { |
| 817 | zip64_internal ziinit; |
| 818 | zip64_internal* zi; |
| 819 | int err=ZIP_OK; |
| 820 | |
| 821 | ziinit.z_filefunc.zseek32_file = NULL; |
| 822 | ziinit.z_filefunc.ztell32_file = NULL; |
| 823 | if (pzlib_filefunc64_32_def==NULL) |
| 824 | fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64); |
| 825 | else |
| 826 | ziinit.z_filefunc = *pzlib_filefunc64_32_def; |
| 827 | |
| 828 | ziinit.filestream = ZOPEN64(ziinit.z_filefunc, |
| 829 | pathname, |
| 830 | (append == APPEND_STATUS_CREATE) ? |
| 831 | (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) : |
| 832 | (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING)); |
| 833 | |
| 834 | if (ziinit.filestream == NULL) |
| 835 | return NULL; |
| 836 | |
| 837 | if (append == APPEND_STATUS_CREATEAFTER) |
| 838 | ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END); |
| 839 | |
| 840 | ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream); |
| 841 | ziinit.in_opened_file_inzip = 0; |
| 842 | ziinit.ci.stream_initialised = 0; |
| 843 | ziinit.number_entry = 0; |
| 844 | ziinit.add_position_when_writing_offset = 0; |
| 845 | init_linkedlist(&(ziinit.central_dir)); |
| 846 | |
| 847 | |
| 848 | |
| 849 | zi = (zip64_internal*)ALLOC(sizeof(zip64_internal)); |
| 850 | if (zi==NULL) |
| 851 | { |
| 852 | ZCLOSE64(ziinit.z_filefunc,ziinit.filestream); |
| 853 | return NULL; |
| 854 | } |
| 855 | |
| 856 | /* now we add file in a zipfile */ |
| 857 | # ifndef NO_ADDFILEINEXISTINGZIP |
| 858 | ziinit.globalcomment = NULL; |
| 859 | if (append == APPEND_STATUS_ADDINZIP) |
| 860 | { |
| 861 | // Read and Cache Central Directory Records |
| 862 | err = LoadCentralDirectoryRecord(&ziinit); |
| 863 | } |
| 864 | |
| 865 | if (globalcomment) |
| 866 | { |
| 867 | *globalcomment = ziinit.globalcomment; |
| 868 | } |
| 869 | # endif /* !NO_ADDFILEINEXISTINGZIP*/ |
| 870 | |
| 871 | if (err != ZIP_OK) |
| 872 | { |
| 873 | # ifndef NO_ADDFILEINEXISTINGZIP |
| 874 | free(ziinit.globalcomment); |
| 875 | # endif /* !NO_ADDFILEINEXISTINGZIP*/ |
| 876 | free(zi); |
| 877 | return NULL; |
| 878 | } |
| 879 | else |
| 880 | { |
| 881 | *zi = ziinit; |
| 882 | return (zipFile)zi; |
| 883 | } |
| 884 | } |
| 885 | |
| 886 | extern zipFile ZEXPORT zipOpen2(const char *pathname, int append, zipcharpc* globalcomment, zlib_filefunc_def* pzlib_filefunc32_def) { |
| 887 | if (pzlib_filefunc32_def != NULL) |
| 888 | { |
| 889 | zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; |
| 890 | fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def); |
| 891 | return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill); |
| 892 | } |
| 893 | else |
| 894 | return zipOpen3(pathname, append, globalcomment, NULL); |
| 895 | } |
| 896 | |
| 897 | extern zipFile ZEXPORT zipOpen2_64(const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_def* pzlib_filefunc_def) { |
| 898 | if (pzlib_filefunc_def != NULL) |
| 899 | { |
| 900 | zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; |
| 901 | zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def; |
| 902 | zlib_filefunc64_32_def_fill.ztell32_file = NULL; |
| 903 | zlib_filefunc64_32_def_fill.zseek32_file = NULL; |
| 904 | return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill); |
| 905 | } |
| 906 | else |
| 907 | return zipOpen3(pathname, append, globalcomment, NULL); |
| 908 | } |
| 909 | |
| 910 | |
| 911 | |
| 912 | extern zipFile ZEXPORT zipOpen(const char* pathname, int append) { |
| 913 | return zipOpen3((const void*)pathname,append,NULL,NULL); |
| 914 | } |
| 915 | |
| 916 | extern zipFile ZEXPORT zipOpen64(const void* pathname, int append) { |
| 917 | return zipOpen3(pathname,append,NULL,NULL); |
| 918 | } |
| 919 | |
| 920 | local int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local) { |
| 921 | /* write the local header */ |
| 922 | int err; |
| 923 | uInt size_filename = (uInt)strlen(filename); |
| 924 | uInt size_extrafield = size_extrafield_local; |
| 925 | |
| 926 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4); |
| 927 | |
| 928 | if (err==ZIP_OK) |
| 929 | { |
| 930 | if(zi->ci.zip64) |
| 931 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */ |
| 932 | else |
| 933 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */ |
| 934 | } |
| 935 | |
| 936 | if (err==ZIP_OK) |
| 937 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2); |
| 938 | |
| 939 | if (err==ZIP_OK) |
| 940 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2); |
| 941 | |
| 942 | if (err==ZIP_OK) |
| 943 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4); |
| 944 | |
| 945 | // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later |
| 946 | if (err==ZIP_OK) |
| 947 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */ |
| 948 | if (err==ZIP_OK) |
| 949 | { |
| 950 | if(zi->ci.zip64) |
| 951 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */ |
| 952 | else |
| 953 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */ |
| 954 | } |
| 955 | if (err==ZIP_OK) |
| 956 | { |
| 957 | if(zi->ci.zip64) |
| 958 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */ |
| 959 | else |
| 960 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */ |
| 961 | } |
| 962 | |
| 963 | if (err==ZIP_OK) |
| 964 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2); |
| 965 | |
| 966 | if(zi->ci.zip64) |
| 967 | { |
| 968 | size_extrafield += 20; |
| 969 | } |
| 970 | |
| 971 | if (err==ZIP_OK) |
| 972 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2); |
| 973 | |
| 974 | if ((err==ZIP_OK) && (size_filename > 0)) |
| 975 | { |
| 976 | if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename) |
| 977 | err = ZIP_ERRNO; |
| 978 | } |
| 979 | |
| 980 | if ((err==ZIP_OK) && (size_extrafield_local > 0)) |
| 981 | { |
| 982 | if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local) |
| 983 | err = ZIP_ERRNO; |
| 984 | } |
| 985 | |
| 986 | |
| 987 | if ((err==ZIP_OK) && (zi->ci.zip64)) |
| 988 | { |
| 989 | // write the Zip64 extended info |
| 990 | short HeaderID = 1; |
| 991 | short DataSize = 16; |
| 992 | ZPOS64_T CompressedSize = 0; |
| 993 | ZPOS64_T UncompressedSize = 0; |
| 994 | |
| 995 | // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file) |
| 996 | zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream); |
| 997 | |
| 998 | err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)HeaderID,2); |
| 999 | err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)DataSize,2); |
| 1000 | |
| 1001 | err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8); |
| 1002 | err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8); |
| 1003 | } |
| 1004 | |
| 1005 | return err; |
| 1006 | } |
| 1007 | |
| 1008 | /* |
| 1009 | NOTE. |
| 1010 | When writing RAW the ZIP64 extended information in extrafield_local and extrafield_global needs to be stripped |
| 1011 | before calling this function it can be done with zipRemoveExtraInfoBlock |
| 1012 | |
| 1013 | It is not done here because then we need to realloc a new buffer since parameters are 'const' and I want to minimize |
| 1014 | unnecessary allocations. |
| 1015 | */ |
| 1016 | extern int ZEXPORT zipOpenNewFileInZip4_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| 1017 | const void* extrafield_local, uInt size_extrafield_local, |
| 1018 | const void* extrafield_global, uInt size_extrafield_global, |
| 1019 | const char* comment, int method, int level, int raw, |
| 1020 | int windowBits,int memLevel, int strategy, |
| 1021 | const char* password, uLong crcForCrypting, |
| 1022 | uLong versionMadeBy, uLong flagBase, int zip64) { |
| 1023 | zip64_internal* zi; |
| 1024 | uInt size_filename; |
| 1025 | uInt size_comment; |
| 1026 | uInt i; |
| 1027 | int err = ZIP_OK; |
| 1028 | |
| 1029 | # ifdef NOCRYPT |
| 1030 | (crcForCrypting); |
| 1031 | if (password != NULL) |
| 1032 | return ZIP_PARAMERROR; |
| 1033 | # endif |
| 1034 | |
| 1035 | if (file == NULL) |
| 1036 | return ZIP_PARAMERROR; |
| 1037 | |
| 1038 | #ifdef HAVE_BZIP2 |
| 1039 | if ((method!=0) && (method!=Z_DEFLATED) && (method!=Z_BZIP2ED)) |
| 1040 | return ZIP_PARAMERROR; |
| 1041 | #else |
| 1042 | if ((method!=0) && (method!=Z_DEFLATED)) |
| 1043 | return ZIP_PARAMERROR; |
| 1044 | #endif |
| 1045 | |
| 1046 | // The filename and comment length must fit in 16 bits. |
| 1047 | if ((filename!=NULL) && (strlen(filename)>0xffff)) |
| 1048 | return ZIP_PARAMERROR; |
| 1049 | if ((comment!=NULL) && (strlen(comment)>0xffff)) |
| 1050 | return ZIP_PARAMERROR; |
| 1051 | // The extra field length must fit in 16 bits. If the member also requires |
| 1052 | // a Zip64 extra block, that will also need to fit within that 16-bit |
| 1053 | // length, but that will be checked for later. |
| 1054 | if ((size_extrafield_local>0xffff) || (size_extrafield_global>0xffff)) |
| 1055 | return ZIP_PARAMERROR; |
| 1056 | |
| 1057 | zi = (zip64_internal*)file; |
| 1058 | |
| 1059 | if (zi->in_opened_file_inzip == 1) |
| 1060 | { |
| 1061 | err = zipCloseFileInZip (file); |
| 1062 | if (err != ZIP_OK) |
| 1063 | return err; |
| 1064 | } |
| 1065 | |
| 1066 | if (filename==NULL) |
| 1067 | filename="-"; |
| 1068 | |
| 1069 | if (comment==NULL) |
| 1070 | size_comment = 0; |
| 1071 | else |
| 1072 | size_comment = (uInt)strlen(comment); |
| 1073 | |
| 1074 | size_filename = (uInt)strlen(filename); |
| 1075 | |
| 1076 | if (zipfi == NULL) |
| 1077 | zi->ci.dosDate = 0; |
| 1078 | else |
| 1079 | { |
| 1080 | if (zipfi->dosDate != 0) |
| 1081 | zi->ci.dosDate = zipfi->dosDate; |
| 1082 | else |
| 1083 | zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date); |
| 1084 | } |
| 1085 | |
| 1086 | zi->ci.flag = flagBase; |
| 1087 | if ((level==8) || (level==9)) |
| 1088 | zi->ci.flag |= 2; |
| 1089 | if (level==2) |
| 1090 | zi->ci.flag |= 4; |
| 1091 | if (level==1) |
| 1092 | zi->ci.flag |= 6; |
| 1093 | if (password != NULL) |
| 1094 | zi->ci.flag |= 1; |
| 1095 | |
| 1096 | zi->ci.crc32 = 0; |
| 1097 | zi->ci.method = method; |
| 1098 | zi->ci.encrypt = 0; |
| 1099 | zi->ci.stream_initialised = 0; |
| 1100 | zi->ci.pos_in_buffered_data = 0; |
| 1101 | zi->ci.raw = raw; |
| 1102 | zi->ci.pos_local_header = ZTELL64(zi->z_filefunc,zi->filestream); |
| 1103 | |
| 1104 | zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global + size_comment; |
| 1105 | zi->ci.size_centralExtraFree = 32; // Extra space we have reserved in case we need to add ZIP64 extra info data |
| 1106 | |
| 1107 | zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree); |
| 1108 | |
| 1109 | zi->ci.size_centralExtra = size_extrafield_global; |
| 1110 | zip64local_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4); |
| 1111 | /* version info */ |
| 1112 | zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)versionMadeBy,2); |
| 1113 | zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2); |
| 1114 | zip64local_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2); |
| 1115 | zip64local_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2); |
| 1116 | zip64local_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4); |
| 1117 | zip64local_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/ |
| 1118 | zip64local_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/ |
| 1119 | zip64local_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/ |
| 1120 | zip64local_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2); |
| 1121 | zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2); |
| 1122 | zip64local_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2); |
| 1123 | zip64local_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/ |
| 1124 | |
| 1125 | if (zipfi==NULL) |
| 1126 | zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2); |
| 1127 | else |
| 1128 | zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2); |
| 1129 | |
| 1130 | if (zipfi==NULL) |
| 1131 | zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4); |
| 1132 | else |
| 1133 | zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4); |
| 1134 | |
| 1135 | if(zi->ci.pos_local_header >= 0xffffffff) |
| 1136 | zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)0xffffffff,4); |
| 1137 | else |
| 1138 | zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header - zi->add_position_when_writing_offset,4); |
| 1139 | |
| 1140 | for (i=0;i<size_filename;i++) |
| 1141 | *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i); |
| 1142 | |
| 1143 | for (i=0;i<size_extrafield_global;i++) |
| 1144 | *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) = |
| 1145 | *(((const char*)extrafield_global)+i); |
| 1146 | |
| 1147 | for (i=0;i<size_comment;i++) |
| 1148 | *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+ |
| 1149 | size_extrafield_global+i) = *(comment+i); |
| 1150 | if (zi->ci.central_header == NULL) |
| 1151 | return ZIP_INTERNALERROR; |
| 1152 | |
| 1153 | zi->ci.zip64 = zip64; |
| 1154 | zi->ci.totalCompressedData = 0; |
| 1155 | zi->ci.totalUncompressedData = 0; |
| 1156 | zi->ci.pos_zip64extrainfo = 0; |
| 1157 | |
| 1158 | err = Write_LocalFileHeader(zi, filename, size_extrafield_local, extrafield_local); |
| 1159 | |
| 1160 | #ifdef HAVE_BZIP2 |
| 1161 | zi->ci.bstream.avail_in = (uInt)0; |
| 1162 | zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; |
| 1163 | zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; |
| 1164 | zi->ci.bstream.total_in_hi32 = 0; |
| 1165 | zi->ci.bstream.total_in_lo32 = 0; |
| 1166 | zi->ci.bstream.total_out_hi32 = 0; |
| 1167 | zi->ci.bstream.total_out_lo32 = 0; |
| 1168 | #endif |
| 1169 | |
| 1170 | zi->ci.stream.avail_in = (uInt)0; |
| 1171 | zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; |
| 1172 | zi->ci.stream.next_out = zi->ci.buffered_data; |
| 1173 | zi->ci.stream.total_in = 0; |
| 1174 | zi->ci.stream.total_out = 0; |
| 1175 | zi->ci.stream.data_type = Z_BINARY; |
| 1176 | |
| 1177 | #ifdef HAVE_BZIP2 |
| 1178 | if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED || zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) |
| 1179 | #else |
| 1180 | if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
| 1181 | #endif |
| 1182 | { |
| 1183 | if(zi->ci.method == Z_DEFLATED) |
| 1184 | { |
| 1185 | zi->ci.stream.zalloc = (alloc_func)0; |
| 1186 | zi->ci.stream.zfree = (free_func)0; |
| 1187 | zi->ci.stream.opaque = (voidpf)0; |
| 1188 | |
| 1189 | if (windowBits>0) |
| 1190 | windowBits = -windowBits; |
| 1191 | |
| 1192 | err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy); |
| 1193 | |
| 1194 | if (err==Z_OK) |
| 1195 | zi->ci.stream_initialised = Z_DEFLATED; |
| 1196 | } |
| 1197 | else if(zi->ci.method == Z_BZIP2ED) |
| 1198 | { |
| 1199 | #ifdef HAVE_BZIP2 |
| 1200 | // Init BZip stuff here |
| 1201 | zi->ci.bstream.bzalloc = 0; |
| 1202 | zi->ci.bstream.bzfree = 0; |
| 1203 | zi->ci.bstream.opaque = (voidpf)0; |
| 1204 | |
| 1205 | err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0,35); |
| 1206 | if(err == BZ_OK) |
| 1207 | zi->ci.stream_initialised = Z_BZIP2ED; |
| 1208 | #endif |
| 1209 | } |
| 1210 | |
| 1211 | } |
| 1212 | |
| 1213 | # ifndef NOCRYPT |
| 1214 | zi->ci.crypt_header_size = 0; |
| 1215 | if ((err==Z_OK) && (password != NULL)) |
| 1216 | { |
| 1217 | unsigned char bufHead[RAND_HEAD_LEN]; |
| 1218 | unsigned int sizeHead; |
| 1219 | zi->ci.encrypt = 1; |
| 1220 | zi->ci.pcrc_32_tab = get_crc_table(); |
| 1221 | /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/ |
| 1222 | |
| 1223 | sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting); |
| 1224 | zi->ci.crypt_header_size = sizeHead; |
| 1225 | |
| 1226 | if (ZWRITE64(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead) |
| 1227 | err = ZIP_ERRNO; |
| 1228 | } |
| 1229 | # endif |
| 1230 | |
| 1231 | if (err==Z_OK) |
| 1232 | zi->in_opened_file_inzip = 1; |
| 1233 | return err; |
| 1234 | } |
| 1235 | |
| 1236 | extern int ZEXPORT zipOpenNewFileInZip4(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| 1237 | const void* extrafield_local, uInt size_extrafield_local, |
| 1238 | const void* extrafield_global, uInt size_extrafield_global, |
| 1239 | const char* comment, int method, int level, int raw, |
| 1240 | int windowBits,int memLevel, int strategy, |
| 1241 | const char* password, uLong crcForCrypting, |
| 1242 | uLong versionMadeBy, uLong flagBase) { |
| 1243 | return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| 1244 | extrafield_local, size_extrafield_local, |
| 1245 | extrafield_global, size_extrafield_global, |
| 1246 | comment, method, level, raw, |
| 1247 | windowBits, memLevel, strategy, |
| 1248 | password, crcForCrypting, versionMadeBy, flagBase, 0); |
| 1249 | } |
| 1250 | |
| 1251 | extern int ZEXPORT zipOpenNewFileInZip3(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| 1252 | const void* extrafield_local, uInt size_extrafield_local, |
| 1253 | const void* extrafield_global, uInt size_extrafield_global, |
| 1254 | const char* comment, int method, int level, int raw, |
| 1255 | int windowBits,int memLevel, int strategy, |
| 1256 | const char* password, uLong crcForCrypting) { |
| 1257 | return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| 1258 | extrafield_local, size_extrafield_local, |
| 1259 | extrafield_global, size_extrafield_global, |
| 1260 | comment, method, level, raw, |
| 1261 | windowBits, memLevel, strategy, |
| 1262 | password, crcForCrypting, VERSIONMADEBY, 0, 0); |
| 1263 | } |
| 1264 | |
| 1265 | extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| 1266 | const void* extrafield_local, uInt size_extrafield_local, |
| 1267 | const void* extrafield_global, uInt size_extrafield_global, |
| 1268 | const char* comment, int method, int level, int raw, |
| 1269 | int windowBits,int memLevel, int strategy, |
| 1270 | const char* password, uLong crcForCrypting, int zip64) { |
| 1271 | return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| 1272 | extrafield_local, size_extrafield_local, |
| 1273 | extrafield_global, size_extrafield_global, |
| 1274 | comment, method, level, raw, |
| 1275 | windowBits, memLevel, strategy, |
| 1276 | password, crcForCrypting, VERSIONMADEBY, 0, zip64); |
| 1277 | } |
| 1278 | |
| 1279 | extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| 1280 | const void* extrafield_local, uInt size_extrafield_local, |
| 1281 | const void* extrafield_global, uInt size_extrafield_global, |
| 1282 | const char* comment, int method, int level, int raw) { |
| 1283 | return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| 1284 | extrafield_local, size_extrafield_local, |
| 1285 | extrafield_global, size_extrafield_global, |
| 1286 | comment, method, level, raw, |
| 1287 | -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| 1288 | NULL, 0, VERSIONMADEBY, 0, 0); |
| 1289 | } |
| 1290 | |
| 1291 | extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| 1292 | const void* extrafield_local, uInt size_extrafield_local, |
| 1293 | const void* extrafield_global, uInt size_extrafield_global, |
| 1294 | const char* comment, int method, int level, int raw, int zip64) { |
| 1295 | return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| 1296 | extrafield_local, size_extrafield_local, |
| 1297 | extrafield_global, size_extrafield_global, |
| 1298 | comment, method, level, raw, |
| 1299 | -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| 1300 | NULL, 0, VERSIONMADEBY, 0, zip64); |
| 1301 | } |
| 1302 | |
| 1303 | extern int ZEXPORT zipOpenNewFileInZip64(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| 1304 | const void* extrafield_local, uInt size_extrafield_local, |
| 1305 | const void*extrafield_global, uInt size_extrafield_global, |
| 1306 | const char* comment, int method, int level, int zip64) { |
| 1307 | return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| 1308 | extrafield_local, size_extrafield_local, |
| 1309 | extrafield_global, size_extrafield_global, |
| 1310 | comment, method, level, 0, |
| 1311 | -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| 1312 | NULL, 0, VERSIONMADEBY, 0, zip64); |
| 1313 | } |
| 1314 | |
| 1315 | extern int ZEXPORT zipOpenNewFileInZip(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| 1316 | const void* extrafield_local, uInt size_extrafield_local, |
| 1317 | const void*extrafield_global, uInt size_extrafield_global, |
| 1318 | const char* comment, int method, int level) { |
| 1319 | return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| 1320 | extrafield_local, size_extrafield_local, |
| 1321 | extrafield_global, size_extrafield_global, |
| 1322 | comment, method, level, 0, |
| 1323 | -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| 1324 | NULL, 0, VERSIONMADEBY, 0, 0); |
| 1325 | } |
| 1326 | |
| 1327 | local int zip64FlushWriteBuffer(zip64_internal* zi) { |
| 1328 | int err=ZIP_OK; |
| 1329 | |
| 1330 | if (zi->ci.encrypt != 0) |
| 1331 | { |
| 1332 | #ifndef NOCRYPT |
| 1333 | uInt i; |
| 1334 | int t; |
| 1335 | for (i=0;i<zi->ci.pos_in_buffered_data;i++) |
| 1336 | zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t); |
| 1337 | #endif |
| 1338 | } |
| 1339 | |
| 1340 | if (ZWRITE64(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) != zi->ci.pos_in_buffered_data) |
| 1341 | err = ZIP_ERRNO; |
| 1342 | |
| 1343 | zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data; |
| 1344 | |
| 1345 | #ifdef HAVE_BZIP2 |
| 1346 | if(zi->ci.method == Z_BZIP2ED) |
| 1347 | { |
| 1348 | zi->ci.totalUncompressedData += zi->ci.bstream.total_in_lo32; |
| 1349 | zi->ci.bstream.total_in_lo32 = 0; |
| 1350 | zi->ci.bstream.total_in_hi32 = 0; |
| 1351 | } |
| 1352 | else |
| 1353 | #endif |
| 1354 | { |
| 1355 | zi->ci.totalUncompressedData += zi->ci.stream.total_in; |
| 1356 | zi->ci.stream.total_in = 0; |
| 1357 | } |
| 1358 | |
| 1359 | |
| 1360 | zi->ci.pos_in_buffered_data = 0; |
| 1361 | |
| 1362 | return err; |
| 1363 | } |
| 1364 | |
| 1365 | extern int ZEXPORT zipWriteInFileInZip(zipFile file, const void* buf, unsigned int len) { |
| 1366 | zip64_internal* zi; |
| 1367 | int err=ZIP_OK; |
| 1368 | |
| 1369 | if (file == NULL) |
| 1370 | return ZIP_PARAMERROR; |
| 1371 | zi = (zip64_internal*)file; |
| 1372 | |
| 1373 | if (zi->in_opened_file_inzip == 0) |
| 1374 | return ZIP_PARAMERROR; |
| 1375 | |
| 1376 | zi->ci.crc32 = crc32(zi->ci.crc32,buf,(uInt)len); |
| 1377 | |
| 1378 | #ifdef HAVE_BZIP2 |
| 1379 | if(zi->ci.method == Z_BZIP2ED && (!zi->ci.raw)) |
| 1380 | { |
| 1381 | zi->ci.bstream.next_in = (void*)buf; |
| 1382 | zi->ci.bstream.avail_in = len; |
| 1383 | err = BZ_RUN_OK; |
| 1384 | |
| 1385 | while ((err==BZ_RUN_OK) && (zi->ci.bstream.avail_in>0)) |
| 1386 | { |
| 1387 | if (zi->ci.bstream.avail_out == 0) |
| 1388 | { |
| 1389 | if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) |
| 1390 | err = ZIP_ERRNO; |
| 1391 | zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; |
| 1392 | zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; |
| 1393 | } |
| 1394 | |
| 1395 | |
| 1396 | if(err != BZ_RUN_OK) |
| 1397 | break; |
| 1398 | |
| 1399 | if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) |
| 1400 | { |
| 1401 | uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32; |
| 1402 | // uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32; |
| 1403 | err=BZ2_bzCompress(&zi->ci.bstream, BZ_RUN); |
| 1404 | |
| 1405 | zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo) ; |
| 1406 | } |
| 1407 | } |
| 1408 | |
| 1409 | if(err == BZ_RUN_OK) |
| 1410 | err = ZIP_OK; |
| 1411 | } |
| 1412 | else |
| 1413 | #endif |
| 1414 | { |
| 1415 | zi->ci.stream.next_in = (Bytef*)(uintptr_t)buf; |
| 1416 | zi->ci.stream.avail_in = len; |
| 1417 | |
| 1418 | while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0)) |
| 1419 | { |
| 1420 | if (zi->ci.stream.avail_out == 0) |
| 1421 | { |
| 1422 | if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) |
| 1423 | err = ZIP_ERRNO; |
| 1424 | zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; |
| 1425 | zi->ci.stream.next_out = zi->ci.buffered_data; |
| 1426 | } |
| 1427 | |
| 1428 | |
| 1429 | if(err != ZIP_OK) |
| 1430 | break; |
| 1431 | |
| 1432 | if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
| 1433 | { |
| 1434 | uLong uTotalOutBefore = zi->ci.stream.total_out; |
| 1435 | err=deflate(&zi->ci.stream, Z_NO_FLUSH); |
| 1436 | |
| 1437 | zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; |
| 1438 | } |
| 1439 | else |
| 1440 | { |
| 1441 | uInt copy_this,i; |
| 1442 | if (zi->ci.stream.avail_in < zi->ci.stream.avail_out) |
| 1443 | copy_this = zi->ci.stream.avail_in; |
| 1444 | else |
| 1445 | copy_this = zi->ci.stream.avail_out; |
| 1446 | |
| 1447 | for (i = 0; i < copy_this; i++) |
| 1448 | *(((char*)zi->ci.stream.next_out)+i) = |
| 1449 | *(((const char*)zi->ci.stream.next_in)+i); |
| 1450 | { |
| 1451 | zi->ci.stream.avail_in -= copy_this; |
| 1452 | zi->ci.stream.avail_out-= copy_this; |
| 1453 | zi->ci.stream.next_in+= copy_this; |
| 1454 | zi->ci.stream.next_out+= copy_this; |
| 1455 | zi->ci.stream.total_in+= copy_this; |
| 1456 | zi->ci.stream.total_out+= copy_this; |
| 1457 | zi->ci.pos_in_buffered_data += copy_this; |
| 1458 | } |
| 1459 | } |
| 1460 | }// while(...) |
| 1461 | } |
| 1462 | |
| 1463 | return err; |
| 1464 | } |
| 1465 | |
| 1466 | extern int ZEXPORT zipCloseFileInZipRaw(zipFile file, uLong uncompressed_size, uLong crc32) { |
| 1467 | return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32); |
| 1468 | } |
| 1469 | |
| 1470 | extern int ZEXPORT zipCloseFileInZipRaw64(zipFile file, ZPOS64_T uncompressed_size, uLong crc32) { |
| 1471 | zip64_internal* zi; |
| 1472 | ZPOS64_T compressed_size; |
| 1473 | uLong invalidValue = 0xffffffff; |
| 1474 | unsigned datasize = 0; |
| 1475 | int err=ZIP_OK; |
| 1476 | |
| 1477 | if (file == NULL) |
| 1478 | return ZIP_PARAMERROR; |
| 1479 | zi = (zip64_internal*)file; |
| 1480 | |
| 1481 | if (zi->in_opened_file_inzip == 0) |
| 1482 | return ZIP_PARAMERROR; |
| 1483 | zi->ci.stream.avail_in = 0; |
| 1484 | |
| 1485 | if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
| 1486 | { |
| 1487 | while (err==ZIP_OK) |
| 1488 | { |
| 1489 | uLong uTotalOutBefore; |
| 1490 | if (zi->ci.stream.avail_out == 0) |
| 1491 | { |
| 1492 | if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) |
| 1493 | err = ZIP_ERRNO; |
| 1494 | zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; |
| 1495 | zi->ci.stream.next_out = zi->ci.buffered_data; |
| 1496 | } |
| 1497 | uTotalOutBefore = zi->ci.stream.total_out; |
| 1498 | err=deflate(&zi->ci.stream, Z_FINISH); |
| 1499 | zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; |
| 1500 | } |
| 1501 | } |
| 1502 | else if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) |
| 1503 | { |
| 1504 | #ifdef HAVE_BZIP2 |
| 1505 | err = BZ_FINISH_OK; |
| 1506 | while (err==BZ_FINISH_OK) |
| 1507 | { |
| 1508 | uLong uTotalOutBefore; |
| 1509 | if (zi->ci.bstream.avail_out == 0) |
| 1510 | { |
| 1511 | if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) |
| 1512 | err = ZIP_ERRNO; |
| 1513 | zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; |
| 1514 | zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; |
| 1515 | } |
| 1516 | uTotalOutBefore = zi->ci.bstream.total_out_lo32; |
| 1517 | err=BZ2_bzCompress(&zi->ci.bstream, BZ_FINISH); |
| 1518 | if(err == BZ_STREAM_END) |
| 1519 | err = Z_STREAM_END; |
| 1520 | |
| 1521 | zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore); |
| 1522 | } |
| 1523 | |
| 1524 | if(err == BZ_FINISH_OK) |
| 1525 | err = ZIP_OK; |
| 1526 | #endif |
| 1527 | } |
| 1528 | |
| 1529 | if (err==Z_STREAM_END) |
| 1530 | err=ZIP_OK; /* this is normal */ |
| 1531 | |
| 1532 | if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK)) |
| 1533 | { |
| 1534 | if (zip64FlushWriteBuffer(zi)==ZIP_ERRNO) |
| 1535 | err = ZIP_ERRNO; |
| 1536 | } |
| 1537 | |
| 1538 | if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
| 1539 | { |
| 1540 | int tmp_err = deflateEnd(&zi->ci.stream); |
| 1541 | if (err == ZIP_OK) |
| 1542 | err = tmp_err; |
| 1543 | zi->ci.stream_initialised = 0; |
| 1544 | } |
| 1545 | #ifdef HAVE_BZIP2 |
| 1546 | else if((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) |
| 1547 | { |
| 1548 | int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream); |
| 1549 | if (err==ZIP_OK) |
| 1550 | err = tmperr; |
| 1551 | zi->ci.stream_initialised = 0; |
| 1552 | } |
| 1553 | #endif |
| 1554 | |
| 1555 | if (!zi->ci.raw) |
| 1556 | { |
| 1557 | crc32 = (uLong)zi->ci.crc32; |
| 1558 | uncompressed_size = zi->ci.totalUncompressedData; |
| 1559 | } |
| 1560 | compressed_size = zi->ci.totalCompressedData; |
| 1561 | |
| 1562 | # ifndef NOCRYPT |
| 1563 | compressed_size += zi->ci.crypt_header_size; |
| 1564 | # endif |
| 1565 | |
| 1566 | // update Current Item crc and sizes, |
| 1567 | if(compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff) |
| 1568 | { |
| 1569 | /*version Made by*/ |
| 1570 | zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)45,2); |
| 1571 | /*version needed*/ |
| 1572 | zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)45,2); |
| 1573 | |
| 1574 | } |
| 1575 | |
| 1576 | zip64local_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/ |
| 1577 | |
| 1578 | |
| 1579 | if(compressed_size >= 0xffffffff) |
| 1580 | zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue,4); /*compr size*/ |
| 1581 | else |
| 1582 | zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size,4); /*compr size*/ |
| 1583 | |
| 1584 | /// set internal file attributes field |
| 1585 | if (zi->ci.stream.data_type == Z_ASCII) |
| 1586 | zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2); |
| 1587 | |
| 1588 | if(uncompressed_size >= 0xffffffff) |
| 1589 | zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue,4); /*uncompr size*/ |
| 1590 | else |
| 1591 | zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size,4); /*uncompr size*/ |
| 1592 | |
| 1593 | // Add ZIP64 extra info field for uncompressed size |
| 1594 | if(uncompressed_size >= 0xffffffff) |
| 1595 | datasize += 8; |
| 1596 | |
| 1597 | // Add ZIP64 extra info field for compressed size |
| 1598 | if(compressed_size >= 0xffffffff) |
| 1599 | datasize += 8; |
| 1600 | |
| 1601 | // Add ZIP64 extra info field for relative offset to local file header of current file |
| 1602 | if(zi->ci.pos_local_header >= 0xffffffff) |
| 1603 | datasize += 8; |
| 1604 | |
| 1605 | if(datasize > 0) |
| 1606 | { |
| 1607 | char* p = NULL; |
| 1608 | |
| 1609 | if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree) |
| 1610 | { |
| 1611 | // we cannot write more data to the buffer that we have room for. |
| 1612 | return ZIP_BADZIPFILE; |
| 1613 | } |
| 1614 | |
| 1615 | p = zi->ci.central_header + zi->ci.size_centralheader; |
| 1616 | |
| 1617 | // Add Extra Information Header for 'ZIP64 information' |
| 1618 | zip64local_putValue_inmemory(p, 0x0001, 2); // HeaderID |
| 1619 | p += 2; |
| 1620 | zip64local_putValue_inmemory(p, datasize, 2); // DataSize |
| 1621 | p += 2; |
| 1622 | |
| 1623 | if(uncompressed_size >= 0xffffffff) |
| 1624 | { |
| 1625 | zip64local_putValue_inmemory(p, uncompressed_size, 8); |
| 1626 | p += 8; |
| 1627 | } |
| 1628 | |
| 1629 | if(compressed_size >= 0xffffffff) |
| 1630 | { |
| 1631 | zip64local_putValue_inmemory(p, compressed_size, 8); |
| 1632 | p += 8; |
| 1633 | } |
| 1634 | |
| 1635 | if(zi->ci.pos_local_header >= 0xffffffff) |
| 1636 | { |
| 1637 | zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8); |
| 1638 | p += 8; |
| 1639 | } |
| 1640 | |
| 1641 | // Update how much extra free space we got in the memory buffer |
| 1642 | // and increase the centralheader size so the new ZIP64 fields are included |
| 1643 | // ( 4 below is the size of HeaderID and DataSize field ) |
| 1644 | zi->ci.size_centralExtraFree -= datasize + 4; |
| 1645 | zi->ci.size_centralheader += datasize + 4; |
| 1646 | |
| 1647 | // Update the extra info size field |
| 1648 | zi->ci.size_centralExtra += datasize + 4; |
| 1649 | zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)zi->ci.size_centralExtra,2); |
| 1650 | } |
| 1651 | |
| 1652 | if (err==ZIP_OK) |
| 1653 | err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader); |
| 1654 | |
| 1655 | free(zi->ci.central_header); |
| 1656 | |
| 1657 | if (err==ZIP_OK) |
| 1658 | { |
| 1659 | // Update the LocalFileHeader with the new values. |
| 1660 | |
| 1661 | ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); |
| 1662 | |
| 1663 | if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 1664 | err = ZIP_ERRNO; |
| 1665 | |
| 1666 | if (err==ZIP_OK) |
| 1667 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */ |
| 1668 | |
| 1669 | if(uncompressed_size >= 0xffffffff || compressed_size >= 0xffffffff ) |
| 1670 | { |
| 1671 | if(zi->ci.pos_zip64extrainfo > 0) |
| 1672 | { |
| 1673 | // Update the size in the ZIP64 extended field. |
| 1674 | if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_zip64extrainfo + 4,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 1675 | err = ZIP_ERRNO; |
| 1676 | |
| 1677 | if (err==ZIP_OK) /* compressed size, unknown */ |
| 1678 | err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8); |
| 1679 | |
| 1680 | if (err==ZIP_OK) /* uncompressed size, unknown */ |
| 1681 | err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8); |
| 1682 | } |
| 1683 | else |
| 1684 | err = ZIP_BADZIPFILE; // Caller passed zip64 = 0, so no room for zip64 info -> fatal |
| 1685 | } |
| 1686 | else |
| 1687 | { |
| 1688 | if (err==ZIP_OK) /* compressed size, unknown */ |
| 1689 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4); |
| 1690 | |
| 1691 | if (err==ZIP_OK) /* uncompressed size, unknown */ |
| 1692 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4); |
| 1693 | } |
| 1694 | |
| 1695 | if (ZSEEK64(zi->z_filefunc,zi->filestream, cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| 1696 | err = ZIP_ERRNO; |
| 1697 | } |
| 1698 | |
| 1699 | zi->number_entry ++; |
| 1700 | zi->in_opened_file_inzip = 0; |
| 1701 | |
| 1702 | return err; |
| 1703 | } |
| 1704 | |
| 1705 | extern int ZEXPORT zipCloseFileInZip(zipFile file) { |
| 1706 | return zipCloseFileInZipRaw (file,0,0); |
| 1707 | } |
| 1708 | |
| 1709 | local int Write_Zip64EndOfCentralDirectoryLocator(zip64_internal* zi, ZPOS64_T zip64eocd_pos_inzip) { |
| 1710 | int err = ZIP_OK; |
| 1711 | ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writing_offset; |
| 1712 | |
| 1713 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDLOCHEADERMAGIC,4); |
| 1714 | |
| 1715 | /*num disks*/ |
| 1716 | if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| 1717 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); |
| 1718 | |
| 1719 | /*relative offset*/ |
| 1720 | if (err==ZIP_OK) /* Relative offset to the Zip64EndOfCentralDirectory */ |
| 1721 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream, pos,8); |
| 1722 | |
| 1723 | /*total disks*/ /* Do not support spawning of disk so always say 1 here*/ |
| 1724 | if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| 1725 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)1,4); |
| 1726 | |
| 1727 | return err; |
| 1728 | } |
| 1729 | |
| 1730 | local int Write_Zip64EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) { |
| 1731 | int err = ZIP_OK; |
| 1732 | |
| 1733 | uLong Zip64DataSize = 44; |
| 1734 | |
| 1735 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDHEADERMAGIC,4); |
| 1736 | |
| 1737 | if (err==ZIP_OK) /* size of this 'zip64 end of central directory' */ |
| 1738 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)Zip64DataSize,8); // why ZPOS64_T of this ? |
| 1739 | |
| 1740 | if (err==ZIP_OK) /* version made by */ |
| 1741 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2); |
| 1742 | |
| 1743 | if (err==ZIP_OK) /* version needed */ |
| 1744 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2); |
| 1745 | |
| 1746 | if (err==ZIP_OK) /* number of this disk */ |
| 1747 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); |
| 1748 | |
| 1749 | if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| 1750 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); |
| 1751 | |
| 1752 | if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ |
| 1753 | err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); |
| 1754 | |
| 1755 | if (err==ZIP_OK) /* total number of entries in the central dir */ |
| 1756 | err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); |
| 1757 | |
| 1758 | if (err==ZIP_OK) /* size of the central directory */ |
| 1759 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)size_centraldir,8); |
| 1760 | |
| 1761 | if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */ |
| 1762 | { |
| 1763 | ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writing_offset; |
| 1764 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos,8); |
| 1765 | } |
| 1766 | return err; |
| 1767 | } |
| 1768 | |
| 1769 | local int Write_EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) { |
| 1770 | int err = ZIP_OK; |
| 1771 | |
| 1772 | /*signature*/ |
| 1773 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4); |
| 1774 | |
| 1775 | if (err==ZIP_OK) /* number of this disk */ |
| 1776 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); |
| 1777 | |
| 1778 | if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| 1779 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); |
| 1780 | |
| 1781 | if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ |
| 1782 | { |
| 1783 | { |
| 1784 | if(zi->number_entry >= 0xFFFF) |
| 1785 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record |
| 1786 | else |
| 1787 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); |
| 1788 | } |
| 1789 | } |
| 1790 | |
| 1791 | if (err==ZIP_OK) /* total number of entries in the central dir */ |
| 1792 | { |
| 1793 | if(zi->number_entry >= 0xFFFF) |
| 1794 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record |
| 1795 | else |
| 1796 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); |
| 1797 | } |
| 1798 | |
| 1799 | if (err==ZIP_OK) /* size of the central directory */ |
| 1800 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4); |
| 1801 | |
| 1802 | if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */ |
| 1803 | { |
| 1804 | ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writing_offset; |
| 1805 | if(pos >= 0xffffffff) |
| 1806 | { |
| 1807 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4); |
| 1808 | } |
| 1809 | else |
| 1810 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writing_offset),4); |
| 1811 | } |
| 1812 | |
| 1813 | return err; |
| 1814 | } |
| 1815 | |
| 1816 | local int Write_GlobalComment(zip64_internal* zi, const char* global_comment) { |
| 1817 | int err = ZIP_OK; |
| 1818 | uInt size_global_comment = 0; |
| 1819 | |
| 1820 | if(global_comment != NULL) |
| 1821 | size_global_comment = (uInt)strlen(global_comment); |
| 1822 | |
| 1823 | err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2); |
| 1824 | |
| 1825 | if (err == ZIP_OK && size_global_comment > 0) |
| 1826 | { |
| 1827 | if (ZWRITE64(zi->z_filefunc,zi->filestream, global_comment, size_global_comment) != size_global_comment) |
| 1828 | err = ZIP_ERRNO; |
| 1829 | } |
| 1830 | return err; |
| 1831 | } |
| 1832 | |
| 1833 | extern int ZEXPORT zipClose(zipFile file, const char* global_comment) { |
| 1834 | zip64_internal* zi; |
| 1835 | int err = 0; |
| 1836 | uLong size_centraldir = 0; |
| 1837 | ZPOS64_T centraldir_pos_inzip; |
| 1838 | ZPOS64_T pos; |
| 1839 | |
| 1840 | if (file == NULL) |
| 1841 | return ZIP_PARAMERROR; |
| 1842 | |
| 1843 | zi = (zip64_internal*)file; |
| 1844 | |
| 1845 | if (zi->in_opened_file_inzip == 1) |
| 1846 | { |
| 1847 | err = zipCloseFileInZip (file); |
| 1848 | } |
| 1849 | |
| 1850 | #ifndef NO_ADDFILEINEXISTINGZIP |
| 1851 | if (global_comment==NULL) |
| 1852 | global_comment = zi->globalcomment; |
| 1853 | #endif |
| 1854 | |
| 1855 | centraldir_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); |
| 1856 | |
| 1857 | if (err==ZIP_OK) |
| 1858 | { |
| 1859 | linkedlist_datablock_internal* ldi = zi->central_dir.first_block; |
| 1860 | while (ldi!=NULL) |
| 1861 | { |
| 1862 | if ((err==ZIP_OK) && (ldi->filled_in_this_block>0)) |
| 1863 | { |
| 1864 | if (ZWRITE64(zi->z_filefunc,zi->filestream, ldi->data, ldi->filled_in_this_block) != ldi->filled_in_this_block) |
| 1865 | err = ZIP_ERRNO; |
| 1866 | } |
| 1867 | |
| 1868 | size_centraldir += ldi->filled_in_this_block; |
| 1869 | ldi = ldi->next_datablock; |
| 1870 | } |
| 1871 | } |
| 1872 | free_linkedlist(&(zi->central_dir)); |
| 1873 | |
| 1874 | pos = centraldir_pos_inzip - zi->add_position_when_writing_offset; |
| 1875 | if(pos >= 0xffffffff || zi->number_entry >= 0xFFFF) |
| 1876 | { |
| 1877 | ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream); |
| 1878 | Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip); |
| 1879 | |
| 1880 | Write_Zip64EndOfCentralDirectoryLocator(zi, Zip64EOCDpos); |
| 1881 | } |
| 1882 | |
| 1883 | if (err==ZIP_OK) |
| 1884 | err = Write_EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip); |
| 1885 | |
| 1886 | if(err == ZIP_OK) |
| 1887 | err = Write_GlobalComment(zi, global_comment); |
| 1888 | |
| 1889 | if (ZCLOSE64(zi->z_filefunc,zi->filestream) != 0) |
| 1890 | if (err == ZIP_OK) |
| 1891 | err = ZIP_ERRNO; |
| 1892 | |
| 1893 | #ifndef NO_ADDFILEINEXISTINGZIP |
| 1894 | free(zi->globalcomment); |
| 1895 | #endif |
| 1896 | free(zi); |
| 1897 | |
| 1898 | return err; |
| 1899 | } |
| 1900 | |
| 1901 | extern int ZEXPORT zipRemoveExtraInfoBlock(char* pData, int* dataLen, short sHeader) { |
| 1902 | char* p = pData; |
| 1903 | int size = 0; |
| 1904 | char* pNewHeader; |
| 1905 | char* pTmp; |
| 1906 | short header; |
| 1907 | short dataSize; |
| 1908 | |
| 1909 | int retVal = ZIP_OK; |
| 1910 | |
| 1911 | if(pData == NULL || dataLen == NULL || *dataLen < 4) |
| 1912 | return ZIP_PARAMERROR; |
| 1913 | |
| 1914 | pNewHeader = (char*)ALLOC((unsigned)*dataLen); |
| 1915 | pTmp = pNewHeader; |
| 1916 | |
| 1917 | while(p < (pData + *dataLen)) |
| 1918 | { |
| 1919 | header = *(short*)p; |
| 1920 | dataSize = *(((short*)p)+1); |
| 1921 | |
| 1922 | if( header == sHeader ) // Header found. |
| 1923 | { |
| 1924 | p += dataSize + 4; // skip it. do not copy to temp buffer |
| 1925 | } |
| 1926 | else |
| 1927 | { |
| 1928 | // Extra Info block should not be removed, So copy it to the temp buffer. |
| 1929 | memcpy(pTmp, p, dataSize + 4); |
| 1930 | p += dataSize + 4; |
| 1931 | size += dataSize + 4; |
| 1932 | } |
| 1933 | |
| 1934 | } |
| 1935 | |
| 1936 | if(size < *dataLen) |
| 1937 | { |
| 1938 | // clean old extra info block. |
| 1939 | memset(pData,0, *dataLen); |
| 1940 | |
| 1941 | // copy the new extra info block over the old |
| 1942 | if(size > 0) |
| 1943 | memcpy(pData, pNewHeader, size); |
| 1944 | |
| 1945 | // set the new extra info size |
| 1946 | *dataLen = size; |
| 1947 | |
| 1948 | retVal = ZIP_OK; |
| 1949 | } |
| 1950 | else |
| 1951 | retVal = ZIP_ERRNO; |
| 1952 | |
| 1953 | free(pNewHeader); |
| 1954 | |
| 1955 | return retVal; |
| 1956 | } |