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 recreting zip archive with RAW when deleting items from a zip. 18 ZIP64 data is automaticly 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 <time.h> 29 #include "zlib.h" 30 #include "zip.h" 31 32 #ifdef STDC 33 # include <stddef.h> 34 # include <string.h> 35 # include <stdlib.h> 36 #endif 37 #ifdef NO_ERRNO_H 38 extern int errno; 39 #else 40 # include <errno.h> 41 #endif 42 43 44 #ifndef local 45 # define local static 46 #endif 47 /* compile with -Dlocal if your debugger can't find static symbols */ 48 49 #ifndef VERSIONMADEBY 50 # define VERSIONMADEBY (0x0) /* platform depedent */ 51 #endif 52 53 #ifndef Z_BUFSIZE 54 #define Z_BUFSIZE (64*1024) //(16384) 55 #endif 56 57 #ifndef Z_MAXFILENAMEINZIP 58 #define Z_MAXFILENAMEINZIP (256) 59 #endif 60 61 #ifndef ALLOC 62 # define ALLOC(size) (malloc(size)) 63 #endif 64 #ifndef TRYFREE 65 # define TRYFREE(p) {if (p) free(p);} 66 #endif 67 68 /* 69 #define SIZECENTRALDIRITEM (0x2e) 70 #define SIZEZIPLOCALHEADER (0x1e) 71 */ 72 73 /* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ 74 75 76 // NOT sure that this work on ALL platform 77 #define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32)) 78 79 #ifndef SEEK_CUR 80 #define SEEK_CUR 1 81 #endif 82 83 #ifndef SEEK_END 84 #define SEEK_END 2 85 #endif 86 87 #ifndef SEEK_SET 88 #define SEEK_SET 0 89 #endif 90 91 #ifndef DEF_MEM_LEVEL 92 #if MAX_MEM_LEVEL >= 8 93 # define DEF_MEM_LEVEL 8 94 #else 95 # define DEF_MEM_LEVEL MAX_MEM_LEVEL 96 #endif 97 #endif 98 const char zip_copyright[] =" zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; 99 100 101 #define SIZEDATA_INDATABLOCK (4096-(4*4)) 102 103 #define LOCALHEADERMAGIC (0x04034b50) 104 #define CENTRALHEADERMAGIC (0x02014b50) 105 #define ENDHEADERMAGIC (0x06054b50) 106 #define ZIP64ENDHEADERMAGIC (0x6064b50) 107 #define ZIP64ENDLOCHEADERMAGIC (0x7064b50) 108 109 #define FLAG_LOCALHEADER_OFFSET (0x06) 110 #define CRC_LOCALHEADER_OFFSET (0x0e) 111 112 #define SIZECENTRALHEADER (0x2e) /* 46 */ 113 114 typedef struct linkedlist_datablock_internal_s 115 { 116 struct linkedlist_datablock_internal_s* next_datablock; 117 uLong avail_in_this_block; 118 uLong filled_in_this_block; 119 uLong unused; /* for future use and alignement */ 120 unsigned char data[SIZEDATA_INDATABLOCK]; 121 } linkedlist_datablock_internal; 122 123 typedef struct linkedlist_data_s 124 { 125 linkedlist_datablock_internal* first_block; 126 linkedlist_datablock_internal* last_block; 127 } linkedlist_data; 128 129 130 typedef struct 131 { 132 z_stream stream; /* zLib stream structure for inflate */ 133 #ifdef HAVE_BZIP2 134 bz_stream bstream; /* bzLib stream structure for bziped */ 135 #endif 136 137 int stream_initialised; /* 1 is stream is initialised */ 138 uInt pos_in_buffered_data; /* last written byte in buffered_data */ 139 140 ZPOS64_T pos_local_header; /* offset of the local header of the file 141 currenty writing */ 142 char* central_header; /* central header data for the current file */ 143 uLong size_centralExtra; 144 uLong size_centralheader; /* size of the central header for cur file */ 145 uLong size_centralExtraFree; /* Extra bytes allocated to the centralheader but that are not used */ 146 uLong flag; /* flag of the file currently writing */ 147 148 int method; /* compression method of file currenty wr.*/ 149 int raw; /* 1 for directly writing raw data */ 150 Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/ 151 uLong dosDate; 152 uLong crc32; 153 int encrypt; 154 int zip64; /* Add ZIP64 extened information in the extra field */ 155 ZPOS64_T pos_zip64extrainfo; 156 ZPOS64_T totalCompressedData; 157 ZPOS64_T totalUncompressedData; 158 #ifndef NOCRYPT 159 unsigned long keys[3]; /* keys defining the pseudo-random sequence */ 160 const unsigned long* pcrc_32_tab; 161 int crypt_header_size; 162 #endif 163 } curfile64_info; 164 165 typedef struct 166 { 167 zlib_filefunc64_32_def z_filefunc; 168 voidpf filestream; /* io structore of the zipfile */ 169 linkedlist_data central_dir;/* datablock with central dir in construction*/ 170 int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/ 171 curfile64_info ci; /* info on the file curretly writing */ 172 173 ZPOS64_T begin_pos; /* position of the beginning of the zipfile */ 174 ZPOS64_T add_position_when_writting_offset; 175 ZPOS64_T number_entry; 176 177 #ifndef NO_ADDFILEINEXISTINGZIP 178 char *globalcomment; 179 #endif 180 181 } zip64_internal; 182 183 184 #ifndef NOCRYPT 185 #define INCLUDECRYPTINGCODE_IFCRYPTALLOWED 186 #include "crypt.h" 187 #endif 188 189 local linkedlist_datablock_internal* allocate_new_datablock() 190 { 191 linkedlist_datablock_internal* ldi; 192 ldi = (linkedlist_datablock_internal*) 193 ALLOC(sizeof(linkedlist_datablock_internal)); 194 if (ldi!=NULL) 195 { 196 ldi->next_datablock = NULL ; 197 ldi->filled_in_this_block = 0 ; 198 ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ; 199 } 200 return ldi; 201 } 202 203 local void free_datablock(linkedlist_datablock_internal* ldi) 204 { 205 while (ldi!=NULL) 206 { 207 linkedlist_datablock_internal* ldinext = ldi->next_datablock; 208 TRYFREE(ldi); 209 ldi = ldinext; 210 } 211 } 212 213 local void init_linkedlist(linkedlist_data* ll) 214 { 215 ll->first_block = ll->last_block = NULL; 216 } 217 218 local void free_linkedlist(linkedlist_data* ll) 219 { 220 free_datablock(ll->first_block); 221 ll->first_block = ll->last_block = NULL; 222 } 223 224 225 local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len) 226 { 227 linkedlist_datablock_internal* ldi; 228 const unsigned char* from_copy; 229 230 if (ll==NULL) 231 return ZIP_INTERNALERROR; 232 233 if (ll->last_block == NULL) 234 { 235 ll->first_block = ll->last_block = allocate_new_datablock(); 236 if (ll->first_block == NULL) 237 return ZIP_INTERNALERROR; 238 } 239 240 ldi = ll->last_block; 241 from_copy = (unsigned char*)buf; 242 243 while (len>0) 244 { 245 uInt copy_this; 246 uInt i; 247 unsigned char* to_copy; 248 249 if (ldi->avail_in_this_block==0) 250 { 251 ldi->next_datablock = allocate_new_datablock(); 252 if (ldi->next_datablock == NULL) 253 return ZIP_INTERNALERROR; 254 ldi = ldi->next_datablock ; 255 ll->last_block = ldi; 256 } 257 258 if (ldi->avail_in_this_block < len) 259 copy_this = (uInt)ldi->avail_in_this_block; 260 else 261 copy_this = (uInt)len; 262 263 to_copy = &(ldi->data[ldi->filled_in_this_block]); 264 265 for (i=0;i<copy_this;i++) 266 *(to_copy+i)=*(from_copy+i); 267 268 ldi->filled_in_this_block += copy_this; 269 ldi->avail_in_this_block -= copy_this; 270 from_copy += copy_this ; 271 len -= copy_this; 272 } 273 return ZIP_OK; 274 } 275 276 277 278 /****************************************************************************/ 279 280 #ifndef NO_ADDFILEINEXISTINGZIP 281 /* =========================================================================== 282 Inputs a long in LSB order to the given file 283 nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T) 284 */ 285 286 local int zip64local_putValue OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte)); 287 local int zip64local_putValue (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte) 288 { 289 unsigned char buf[8]; 290 int n; 291 for (n = 0; n < nbByte; n++) 292 { 293 buf[n] = (unsigned char)(x & 0xff); 294 x >>= 8; 295 } 296 if (x != 0) 297 { /* data overflow - hack for ZIP64 (X Roche) */ 298 for (n = 0; n < nbByte; n++) 299 { 300 buf[n] = 0xff; 301 } 302 } 303 304 if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte) 305 return ZIP_ERRNO; 306 else 307 return ZIP_OK; 308 } 309 310 local void zip64local_putValue_inmemory OF((void* dest, ZPOS64_T x, int nbByte)); 311 local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte) 312 { 313 unsigned char* buf=(unsigned char*)dest; 314 int n; 315 for (n = 0; n < nbByte; n++) { 316 buf[n] = (unsigned char)(x & 0xff); 317 x >>= 8; 318 } 319 320 if (x != 0) 321 { /* data overflow - hack for ZIP64 */ 322 for (n = 0; n < nbByte; n++) 323 { 324 buf[n] = 0xff; 325 } 326 } 327 } 328 329 /****************************************************************************/ 330 331 332 local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm) 333 { 334 uLong year = (uLong)ptm->tm_year; 335 if (year>=1980) 336 year-=1980; 337 else if (year>=80) 338 year-=80; 339 return 340 (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) | 341 ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour)); 342 } 343 344 345 /****************************************************************************/ 346 347 local int zip64local_getByte OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi)); 348 349 local int zip64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def,voidpf filestream,int* pi) 350 { 351 unsigned char c; 352 int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1); 353 if (err==1) 354 { 355 *pi = (int)c; 356 return ZIP_OK; 357 } 358 else 359 { 360 if (ZERROR64(*pzlib_filefunc_def,filestream)) 361 return ZIP_ERRNO; 362 else 363 return ZIP_EOF; 364 } 365 } 366 367 368 /* =========================================================================== 369 Reads a long in LSB order from the given gz_stream. Sets 370 */ 371 local int zip64local_getShort OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX)); 372 373 local int zip64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) 374 { 375 uLong x ; 376 int i = 0; 377 int err; 378 379 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 380 x = (uLong)i; 381 382 if (err==ZIP_OK) 383 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 384 x += ((uLong)i)<<8; 385 386 if (err==ZIP_OK) 387 *pX = x; 388 else 389 *pX = 0; 390 return err; 391 } 392 393 local int zip64local_getLong OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX)); 394 395 local int zip64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) 396 { 397 uLong x ; 398 int i = 0; 399 int err; 400 401 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 402 x = (uLong)i; 403 404 if (err==ZIP_OK) 405 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 406 x += ((uLong)i)<<8; 407 408 if (err==ZIP_OK) 409 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 410 x += ((uLong)i)<<16; 411 412 if (err==ZIP_OK) 413 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 414 x += ((uLong)i)<<24; 415 416 if (err==ZIP_OK) 417 *pX = x; 418 else 419 *pX = 0; 420 return err; 421 } 422 423 local int zip64local_getLong64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX)); 424 425 426 local int zip64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX) 427 { 428 ZPOS64_T x; 429 int i = 0; 430 int err; 431 432 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 433 x = (ZPOS64_T)i; 434 435 if (err==ZIP_OK) 436 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 437 x += ((ZPOS64_T)i)<<8; 438 439 if (err==ZIP_OK) 440 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 441 x += ((ZPOS64_T)i)<<16; 442 443 if (err==ZIP_OK) 444 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 445 x += ((ZPOS64_T)i)<<24; 446 447 if (err==ZIP_OK) 448 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 449 x += ((ZPOS64_T)i)<<32; 450 451 if (err==ZIP_OK) 452 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 453 x += ((ZPOS64_T)i)<<40; 454 455 if (err==ZIP_OK) 456 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 457 x += ((ZPOS64_T)i)<<48; 458 459 if (err==ZIP_OK) 460 err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); 461 x += ((ZPOS64_T)i)<<56; 462 463 if (err==ZIP_OK) 464 *pX = x; 465 else 466 *pX = 0; 467 468 return err; 469 } 470 471 #ifndef BUFREADCOMMENT 472 #define BUFREADCOMMENT (0x400) 473 #endif 474 /* 475 Locate the Central directory of a zipfile (at the end, just before 476 the global comment) 477 */ 478 local ZPOS64_T zip64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); 479 480 local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) 481 { 482 unsigned char* buf; 483 ZPOS64_T uSizeFile; 484 ZPOS64_T uBackRead; 485 ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ 486 ZPOS64_T uPosFound=0; 487 488 if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) 489 return 0; 490 491 492 uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); 493 494 if (uMaxBack>uSizeFile) 495 uMaxBack = uSizeFile; 496 497 buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); 498 if (buf==NULL) 499 return 0; 500 501 uBackRead = 4; 502 while (uBackRead<uMaxBack) 503 { 504 uLong uReadSize; 505 ZPOS64_T uReadPos ; 506 int i; 507 if (uBackRead+BUFREADCOMMENT>uMaxBack) 508 uBackRead = uMaxBack; 509 else 510 uBackRead+=BUFREADCOMMENT; 511 uReadPos = uSizeFile-uBackRead ; 512 513 uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? 514 (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); 515 if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) 516 break; 517 518 if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) 519 break; 520 521 for (i=(int)uReadSize-3; (i--)>0;) 522 if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && 523 ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) 524 { 525 uPosFound = uReadPos+i; 526 break; 527 } 528 529 if (uPosFound!=0) 530 break; 531 } 532 TRYFREE(buf); 533 return uPosFound; 534 } 535 536 /* 537 Locate the End of Zip64 Central directory locator and from there find the CD of a zipfile (at the end, just before 538 the global comment) 539 */ 540 local ZPOS64_T zip64local_SearchCentralDir64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); 541 542 local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) 543 { 544 unsigned char* buf; 545 ZPOS64_T uSizeFile; 546 ZPOS64_T uBackRead; 547 ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ 548 ZPOS64_T uPosFound=0; 549 uLong uL; 550 ZPOS64_T relativeOffset; 551 552 if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) 553 return 0; 554 555 uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); 556 557 if (uMaxBack>uSizeFile) 558 uMaxBack = uSizeFile; 559 560 buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); 561 if (buf==NULL) 562 return 0; 563 564 uBackRead = 4; 565 while (uBackRead<uMaxBack) 566 { 567 uLong uReadSize; 568 ZPOS64_T uReadPos; 569 int i; 570 if (uBackRead+BUFREADCOMMENT>uMaxBack) 571 uBackRead = uMaxBack; 572 else 573 uBackRead+=BUFREADCOMMENT; 574 uReadPos = uSizeFile-uBackRead ; 575 576 uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? 577 (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); 578 if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) 579 break; 580 581 if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) 582 break; 583 584 for (i=(int)uReadSize-3; (i--)>0;) 585 { 586 // Signature "0x07064b50" Zip64 end of central directory locater 587 if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07)) 588 { 589 uPosFound = uReadPos+i; 590 break; 591 } 592 } 593 594 if (uPosFound!=0) 595 break; 596 } 597 598 TRYFREE(buf); 599 if (uPosFound == 0) 600 return 0; 601 602 /* Zip64 end of central directory locator */ 603 if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0) 604 return 0; 605 606 /* the signature, already checked */ 607 if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) 608 return 0; 609 610 /* number of the disk with the start of the zip64 end of central directory */ 611 if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) 612 return 0; 613 if (uL != 0) 614 return 0; 615 616 /* relative offset of the zip64 end of central directory record */ 617 if (zip64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=ZIP_OK) 618 return 0; 619 620 /* total number of disks */ 621 if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) 622 return 0; 623 if (uL != 1) 624 return 0; 625 626 /* Goto Zip64 end of central directory record */ 627 if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0) 628 return 0; 629 630 /* the signature */ 631 if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) 632 return 0; 633 634 if (uL != 0x06064b50) // signature of 'Zip64 end of central directory' 635 return 0; 636 637 return relativeOffset; 638 } 639 640 int LoadCentralDirectoryRecord(zip64_internal* pziinit) 641 { 642 int err=ZIP_OK; 643 ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ 644 645 ZPOS64_T size_central_dir; /* size of the central directory */ 646 ZPOS64_T offset_central_dir; /* offset of start of central directory */ 647 ZPOS64_T central_pos; 648 uLong uL; 649 650 uLong number_disk; /* number of the current dist, used for 651 spaning ZIP, unsupported, always 0*/ 652 uLong number_disk_with_CD; /* number the the disk with central dir, used 653 for spaning ZIP, unsupported, always 0*/ 654 ZPOS64_T number_entry; 655 ZPOS64_T number_entry_CD; /* total number of entries in 656 the central dir 657 (same than number_entry on nospan) */ 658 uLong VersionMadeBy; 659 uLong VersionNeeded; 660 uLong size_comment; 661 662 int hasZIP64Record = 0; 663 664 // check first if we find a ZIP64 record 665 central_pos = zip64local_SearchCentralDir64(&pziinit->z_filefunc,pziinit->filestream); 666 if(central_pos > 0) 667 { 668 hasZIP64Record = 1; 669 } 670 else if(central_pos == 0) 671 { 672 central_pos = zip64local_SearchCentralDir(&pziinit->z_filefunc,pziinit->filestream); 673 } 674 675 /* disable to allow appending to empty ZIP archive 676 if (central_pos==0) 677 err=ZIP_ERRNO; 678 */ 679 680 if(hasZIP64Record) 681 { 682 ZPOS64_T sizeEndOfCentralDirectory; 683 if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) 684 err=ZIP_ERRNO; 685 686 /* the signature, already checked */ 687 if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK) 688 err=ZIP_ERRNO; 689 690 /* size of zip64 end of central directory record */ 691 if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &sizeEndOfCentralDirectory)!=ZIP_OK) 692 err=ZIP_ERRNO; 693 694 /* version made by */ 695 if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionMadeBy)!=ZIP_OK) 696 err=ZIP_ERRNO; 697 698 /* version needed to extract */ 699 if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionNeeded)!=ZIP_OK) 700 err=ZIP_ERRNO; 701 702 /* number of this disk */ 703 if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK) 704 err=ZIP_ERRNO; 705 706 /* number of the disk with the start of the central directory */ 707 if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK) 708 err=ZIP_ERRNO; 709 710 /* total number of entries in the central directory on this disk */ 711 if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &number_entry)!=ZIP_OK) 712 err=ZIP_ERRNO; 713 714 /* total number of entries in the central directory */ 715 if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&number_entry_CD)!=ZIP_OK) 716 err=ZIP_ERRNO; 717 718 if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0)) 719 err=ZIP_BADZIPFILE; 720 721 /* size of the central directory */ 722 if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&size_central_dir)!=ZIP_OK) 723 err=ZIP_ERRNO; 724 725 /* offset of start of central directory with respect to the 726 starting disk number */ 727 if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&offset_central_dir)!=ZIP_OK) 728 err=ZIP_ERRNO; 729 730 // TODO.. 731 // read the comment from the standard central header. 732 size_comment = 0; 733 } 734 else 735 { 736 // Read End of central Directory info 737 if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) 738 err=ZIP_ERRNO; 739 740 /* the signature, already checked */ 741 if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK) 742 err=ZIP_ERRNO; 743 744 /* number of this disk */ 745 if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK) 746 err=ZIP_ERRNO; 747 748 /* number of the disk with the start of the central directory */ 749 if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK) 750 err=ZIP_ERRNO; 751 752 /* total number of entries in the central dir on this disk */ 753 number_entry = 0; 754 if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) 755 err=ZIP_ERRNO; 756 else 757 number_entry = uL; 758 759 /* total number of entries in the central dir */ 760 number_entry_CD = 0; 761 if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) 762 err=ZIP_ERRNO; 763 else 764 number_entry_CD = uL; 765 766 if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0)) 767 err=ZIP_BADZIPFILE; 768 769 /* size of the central directory */ 770 size_central_dir = 0; 771 if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) 772 err=ZIP_ERRNO; 773 else 774 size_central_dir = uL; 775 776 /* offset of start of central directory with respect to the starting disk number */ 777 offset_central_dir = 0; 778 if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) 779 err=ZIP_ERRNO; 780 else 781 offset_central_dir = uL; 782 783 784 /* zipfile global comment length */ 785 if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &size_comment)!=ZIP_OK) 786 err=ZIP_ERRNO; 787 } 788 789 if ((central_pos<offset_central_dir+size_central_dir) && 790 (err==ZIP_OK)) 791 err=ZIP_BADZIPFILE; 792 793 if (err!=ZIP_OK) 794 { 795 ZCLOSE64(pziinit->z_filefunc, pziinit->filestream); 796 return ZIP_ERRNO; 797 } 798 799 if (size_comment>0) 800 { 801 pziinit->globalcomment = (char*)ALLOC(size_comment+1); 802 if (pziinit->globalcomment) 803 { 804 size_comment = ZREAD64(pziinit->z_filefunc, pziinit->filestream, pziinit->globalcomment,size_comment); 805 pziinit->globalcomment[size_comment]=0; 806 } 807 } 808 809 byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir); 810 pziinit->add_position_when_writting_offset = byte_before_the_zipfile; 811 812 { 813 ZPOS64_T size_central_dir_to_read = size_central_dir; 814 size_t buf_size = SIZEDATA_INDATABLOCK; 815 void* buf_read = (void*)ALLOC(buf_size); 816 if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0) 817 err=ZIP_ERRNO; 818 819 while ((size_central_dir_to_read>0) && (err==ZIP_OK)) 820 { 821 ZPOS64_T read_this = SIZEDATA_INDATABLOCK; 822 if (read_this > size_central_dir_to_read) 823 read_this = size_central_dir_to_read; 824 825 if (ZREAD64(pziinit->z_filefunc, pziinit->filestream,buf_read,(uLong)read_this) != read_this) 826 err=ZIP_ERRNO; 827 828 if (err==ZIP_OK) 829 err = add_data_in_datablock(&pziinit->central_dir,buf_read, (uLong)read_this); 830 831 size_central_dir_to_read-=read_this; 832 } 833 TRYFREE(buf_read); 834 } 835 pziinit->begin_pos = byte_before_the_zipfile; 836 pziinit->number_entry = number_entry_CD; 837 838 if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET) != 0) 839 err=ZIP_ERRNO; 840 841 return err; 842 } 843 844 845 #endif /* !NO_ADDFILEINEXISTINGZIP*/ 846 847 848 /************************************************************/ 849 extern zipFile ZEXPORT zipOpen3 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def) 850 { 851 zip64_internal ziinit; 852 zip64_internal* zi; 853 int err=ZIP_OK; 854 855 ziinit.z_filefunc.zseek32_file = NULL; 856 ziinit.z_filefunc.ztell32_file = NULL; 857 if (pzlib_filefunc64_32_def==NULL) 858 fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64); 859 else 860 ziinit.z_filefunc = *pzlib_filefunc64_32_def; 861 862 ziinit.filestream = ZOPEN64(ziinit.z_filefunc, 863 pathname, 864 (append == APPEND_STATUS_CREATE) ? 865 (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) : 866 (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING)); 867 868 if (ziinit.filestream == NULL) 869 return NULL; 870 871 if (append == APPEND_STATUS_CREATEAFTER) 872 ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END); 873 874 ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream); 875 ziinit.in_opened_file_inzip = 0; 876 ziinit.ci.stream_initialised = 0; 877 ziinit.number_entry = 0; 878 ziinit.add_position_when_writting_offset = 0; 879 init_linkedlist(&(ziinit.central_dir)); 880 881 882 883 zi = (zip64_internal*)ALLOC(sizeof(zip64_internal)); 884 if (zi==NULL) 885 { 886 ZCLOSE64(ziinit.z_filefunc,ziinit.filestream); 887 return NULL; 888 } 889 890 /* now we add file in a zipfile */ 891 # ifndef NO_ADDFILEINEXISTINGZIP 892 ziinit.globalcomment = NULL; 893 if (append == APPEND_STATUS_ADDINZIP) 894 { 895 // Read and Cache Central Directory Records 896 err = LoadCentralDirectoryRecord(&ziinit); 897 } 898 899 if (globalcomment) 900 { 901 *globalcomment = ziinit.globalcomment; 902 } 903 # endif /* !NO_ADDFILEINEXISTINGZIP*/ 904 905 if (err != ZIP_OK) 906 { 907 # ifndef NO_ADDFILEINEXISTINGZIP 908 TRYFREE(ziinit.globalcomment); 909 # endif /* !NO_ADDFILEINEXISTINGZIP*/ 910 TRYFREE(zi); 911 return NULL; 912 } 913 else 914 { 915 *zi = ziinit; 916 return (zipFile)zi; 917 } 918 } 919 920 extern zipFile ZEXPORT zipOpen2 (const char *pathname, int append, zipcharpc* globalcomment, zlib_filefunc_def* pzlib_filefunc32_def) 921 { 922 if (pzlib_filefunc32_def != NULL) 923 { 924 zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; 925 fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def); 926 return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill); 927 } 928 else 929 return zipOpen3(pathname, append, globalcomment, NULL); 930 } 931 932 extern zipFile ZEXPORT zipOpen2_64 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_def* pzlib_filefunc_def) 933 { 934 if (pzlib_filefunc_def != NULL) 935 { 936 zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; 937 zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def; 938 zlib_filefunc64_32_def_fill.ztell32_file = NULL; 939 zlib_filefunc64_32_def_fill.zseek32_file = NULL; 940 return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill); 941 } 942 else 943 return zipOpen3(pathname, append, globalcomment, NULL); 944 } 945 946 947 948 extern zipFile ZEXPORT zipOpen (const char* pathname, int append) 949 { 950 return zipOpen3((const void*)pathname,append,NULL,NULL); 951 } 952 953 extern zipFile ZEXPORT zipOpen64 (const void* pathname, int append) 954 { 955 return zipOpen3(pathname,append,NULL,NULL); 956 } 957 958 int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local) 959 { 960 /* write the local header */ 961 int err; 962 uInt size_filename = (uInt)strlen(filename); 963 uInt size_extrafield = size_extrafield_local; 964 965 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4); 966 967 if (err==ZIP_OK) 968 { 969 if(zi->ci.zip64) 970 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */ 971 else 972 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */ 973 } 974 975 if (err==ZIP_OK) 976 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2); 977 978 if (err==ZIP_OK) 979 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2); 980 981 if (err==ZIP_OK) 982 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4); 983 984 // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later 985 if (err==ZIP_OK) 986 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */ 987 if (err==ZIP_OK) 988 { 989 if(zi->ci.zip64) 990 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */ 991 else 992 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */ 993 } 994 if (err==ZIP_OK) 995 { 996 if(zi->ci.zip64) 997 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */ 998 else 999 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */ 1000 } 1001 1002 if (err==ZIP_OK) 1003 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2); 1004 1005 if(zi->ci.zip64) 1006 { 1007 size_extrafield += 20; 1008 } 1009 1010 if (err==ZIP_OK) 1011 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2); 1012 1013 if ((err==ZIP_OK) && (size_filename > 0)) 1014 { 1015 if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename) 1016 err = ZIP_ERRNO; 1017 } 1018 1019 if ((err==ZIP_OK) && (size_extrafield_local > 0)) 1020 { 1021 if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local) 1022 err = ZIP_ERRNO; 1023 } 1024 1025 1026 if ((err==ZIP_OK) && (zi->ci.zip64)) 1027 { 1028 // write the Zip64 extended info 1029 short HeaderID = 1; 1030 short DataSize = 16; 1031 ZPOS64_T CompressedSize = 0; 1032 ZPOS64_T UncompressedSize = 0; 1033 1034 // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file) 1035 zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream); 1036 1037 err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)HeaderID,2); 1038 err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)DataSize,2); 1039 1040 err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8); 1041 err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8); 1042 } 1043 1044 return err; 1045 } 1046 1047 /* 1048 NOTE. 1049 When writing RAW the ZIP64 extended information in extrafield_local and extrafield_global needs to be stripped 1050 before calling this function it can be done with zipRemoveExtraInfoBlock 1051 1052 It is not done here because then we need to realloc a new buffer since parameters are 'const' and I want to minimize 1053 unnecessary allocations. 1054 */ 1055 extern int ZEXPORT zipOpenNewFileInZip4_64 (zipFile file, const char* filename, const zip_fileinfo* zipfi, 1056 const void* extrafield_local, uInt size_extrafield_local, 1057 const void* extrafield_global, uInt size_extrafield_global, 1058 const char* comment, int method, int level, int raw, 1059 int windowBits,int memLevel, int strategy, 1060 const char* password, uLong crcForCrypting, 1061 uLong versionMadeBy, uLong flagBase, int zip64) 1062 { 1063 zip64_internal* zi; 1064 uInt size_filename; 1065 uInt size_comment; 1066 uInt i; 1067 int err = ZIP_OK; 1068 1069 # ifdef NOCRYPT 1070 (crcForCrypting); 1071 if (password != NULL) 1072 return ZIP_PARAMERROR; 1073 # endif 1074 1075 if (file == NULL) 1076 return ZIP_PARAMERROR; 1077 1078 #ifdef HAVE_BZIP2 1079 if ((method!=0) && (method!=Z_DEFLATED) && (method!=Z_BZIP2ED)) 1080 return ZIP_PARAMERROR; 1081 #else 1082 if ((method!=0) && (method!=Z_DEFLATED)) 1083 return ZIP_PARAMERROR; 1084 #endif 1085 1086 zi = (zip64_internal*)file; 1087 1088 if (zi->in_opened_file_inzip == 1) 1089 { 1090 err = zipCloseFileInZip (file); 1091 if (err != ZIP_OK) 1092 return err; 1093 } 1094 1095 if (filename==NULL) 1096 filename="-"; 1097 1098 if (comment==NULL) 1099 size_comment = 0; 1100 else 1101 size_comment = (uInt)strlen(comment); 1102 1103 size_filename = (uInt)strlen(filename); 1104 1105 if (zipfi == NULL) 1106 zi->ci.dosDate = 0; 1107 else 1108 { 1109 if (zipfi->dosDate != 0) 1110 zi->ci.dosDate = zipfi->dosDate; 1111 else 1112 zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date); 1113 } 1114 1115 zi->ci.flag = flagBase; 1116 if ((level==8) || (level==9)) 1117 zi->ci.flag |= 2; 1118 if (level==2) 1119 zi->ci.flag |= 4; 1120 if (level==1) 1121 zi->ci.flag |= 6; 1122 if (password != NULL) 1123 zi->ci.flag |= 1; 1124 1125 zi->ci.crc32 = 0; 1126 zi->ci.method = method; 1127 zi->ci.encrypt = 0; 1128 zi->ci.stream_initialised = 0; 1129 zi->ci.pos_in_buffered_data = 0; 1130 zi->ci.raw = raw; 1131 zi->ci.pos_local_header = ZTELL64(zi->z_filefunc,zi->filestream); 1132 1133 zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global + size_comment; 1134 zi->ci.size_centralExtraFree = 32; // Extra space we have reserved in case we need to add ZIP64 extra info data 1135 1136 zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree); 1137 1138 zi->ci.size_centralExtra = size_extrafield_global; 1139 zip64local_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4); 1140 /* version info */ 1141 zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)versionMadeBy,2); 1142 zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2); 1143 zip64local_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2); 1144 zip64local_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2); 1145 zip64local_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4); 1146 zip64local_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/ 1147 zip64local_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/ 1148 zip64local_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/ 1149 zip64local_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2); 1150 zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2); 1151 zip64local_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2); 1152 zip64local_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/ 1153 1154 if (zipfi==NULL) 1155 zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2); 1156 else 1157 zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2); 1158 1159 if (zipfi==NULL) 1160 zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4); 1161 else 1162 zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4); 1163 1164 if(zi->ci.pos_local_header >= 0xffffffff) 1165 zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)0xffffffff,4); 1166 else 1167 zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header - zi->add_position_when_writting_offset,4); 1168 1169 for (i=0;i<size_filename;i++) 1170 *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i); 1171 1172 for (i=0;i<size_extrafield_global;i++) 1173 *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) = 1174 *(((const char*)extrafield_global)+i); 1175 1176 for (i=0;i<size_comment;i++) 1177 *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+ 1178 size_extrafield_global+i) = *(comment+i); 1179 if (zi->ci.central_header == NULL) 1180 return ZIP_INTERNALERROR; 1181 1182 zi->ci.zip64 = zip64; 1183 zi->ci.totalCompressedData = 0; 1184 zi->ci.totalUncompressedData = 0; 1185 zi->ci.pos_zip64extrainfo = 0; 1186 1187 err = Write_LocalFileHeader(zi, filename, size_extrafield_local, extrafield_local); 1188 1189 #ifdef HAVE_BZIP2 1190 zi->ci.bstream.avail_in = (uInt)0; 1191 zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; 1192 zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; 1193 zi->ci.bstream.total_in_hi32 = 0; 1194 zi->ci.bstream.total_in_lo32 = 0; 1195 zi->ci.bstream.total_out_hi32 = 0; 1196 zi->ci.bstream.total_out_lo32 = 0; 1197 #endif 1198 1199 zi->ci.stream.avail_in = (uInt)0; 1200 zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; 1201 zi->ci.stream.next_out = zi->ci.buffered_data; 1202 zi->ci.stream.total_in = 0; 1203 zi->ci.stream.total_out = 0; 1204 zi->ci.stream.data_type = Z_BINARY; 1205 1206 #ifdef HAVE_BZIP2 1207 if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED || zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) 1208 #else 1209 if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) 1210 #endif 1211 { 1212 if(zi->ci.method == Z_DEFLATED) 1213 { 1214 zi->ci.stream.zalloc = (alloc_func)0; 1215 zi->ci.stream.zfree = (free_func)0; 1216 zi->ci.stream.opaque = (voidpf)0; 1217 1218 if (windowBits>0) 1219 windowBits = -windowBits; 1220 1221 err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy); 1222 1223 if (err==Z_OK) 1224 zi->ci.stream_initialised = Z_DEFLATED; 1225 } 1226 else if(zi->ci.method == Z_BZIP2ED) 1227 { 1228 #ifdef HAVE_BZIP2 1229 // Init BZip stuff here 1230 zi->ci.bstream.bzalloc = 0; 1231 zi->ci.bstream.bzfree = 0; 1232 zi->ci.bstream.opaque = (voidpf)0; 1233 1234 err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0,35); 1235 if(err == BZ_OK) 1236 zi->ci.stream_initialised = Z_BZIP2ED; 1237 #endif 1238 } 1239 1240 } 1241 1242 # ifndef NOCRYPT 1243 zi->ci.crypt_header_size = 0; 1244 if ((err==Z_OK) && (password != NULL)) 1245 { 1246 unsigned char bufHead[RAND_HEAD_LEN]; 1247 unsigned int sizeHead; 1248 zi->ci.encrypt = 1; 1249 zi->ci.pcrc_32_tab = get_crc_table(); 1250 /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/ 1251 1252 sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting); 1253 zi->ci.crypt_header_size = sizeHead; 1254 1255 if (ZWRITE64(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead) 1256 err = ZIP_ERRNO; 1257 } 1258 # endif 1259 1260 if (err==Z_OK) 1261 zi->in_opened_file_inzip = 1; 1262 return err; 1263 } 1264 1265 extern int ZEXPORT zipOpenNewFileInZip4 (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, 1271 uLong versionMadeBy, uLong flagBase) 1272 { 1273 return zipOpenNewFileInZip4_64 (file, filename, zipfi, 1274 extrafield_local, size_extrafield_local, 1275 extrafield_global, size_extrafield_global, 1276 comment, method, level, raw, 1277 windowBits, memLevel, strategy, 1278 password, crcForCrypting, versionMadeBy, flagBase, 0); 1279 } 1280 1281 extern int ZEXPORT zipOpenNewFileInZip3 (zipFile file, const char* filename, const zip_fileinfo* zipfi, 1282 const void* extrafield_local, uInt size_extrafield_local, 1283 const void* extrafield_global, uInt size_extrafield_global, 1284 const char* comment, int method, int level, int raw, 1285 int windowBits,int memLevel, int strategy, 1286 const char* password, uLong crcForCrypting) 1287 { 1288 return zipOpenNewFileInZip4_64 (file, filename, zipfi, 1289 extrafield_local, size_extrafield_local, 1290 extrafield_global, size_extrafield_global, 1291 comment, method, level, raw, 1292 windowBits, memLevel, strategy, 1293 password, crcForCrypting, VERSIONMADEBY, 0, 0); 1294 } 1295 1296 extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, 1297 const void* extrafield_local, uInt size_extrafield_local, 1298 const void* extrafield_global, uInt size_extrafield_global, 1299 const char* comment, int method, int level, int raw, 1300 int windowBits,int memLevel, int strategy, 1301 const char* password, uLong crcForCrypting, int zip64) 1302 { 1303 return zipOpenNewFileInZip4_64 (file, filename, zipfi, 1304 extrafield_local, size_extrafield_local, 1305 extrafield_global, size_extrafield_global, 1306 comment, method, level, raw, 1307 windowBits, memLevel, strategy, 1308 password, crcForCrypting, VERSIONMADEBY, 0, zip64); 1309 } 1310 1311 extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi, 1312 const void* extrafield_local, uInt size_extrafield_local, 1313 const void* extrafield_global, uInt size_extrafield_global, 1314 const char* comment, int method, int level, int raw) 1315 { 1316 return zipOpenNewFileInZip4_64 (file, filename, zipfi, 1317 extrafield_local, size_extrafield_local, 1318 extrafield_global, size_extrafield_global, 1319 comment, method, level, raw, 1320 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, 1321 NULL, 0, VERSIONMADEBY, 0, 0); 1322 } 1323 1324 extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, 1325 const void* extrafield_local, uInt size_extrafield_local, 1326 const void* extrafield_global, uInt size_extrafield_global, 1327 const char* comment, int method, int level, int raw, int zip64) 1328 { 1329 return zipOpenNewFileInZip4_64 (file, filename, zipfi, 1330 extrafield_local, size_extrafield_local, 1331 extrafield_global, size_extrafield_global, 1332 comment, method, level, raw, 1333 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, 1334 NULL, 0, VERSIONMADEBY, 0, zip64); 1335 } 1336 1337 extern int ZEXPORT zipOpenNewFileInZip64 (zipFile file, const char* filename, const zip_fileinfo* zipfi, 1338 const void* extrafield_local, uInt size_extrafield_local, 1339 const void*extrafield_global, uInt size_extrafield_global, 1340 const char* comment, int method, int level, int zip64) 1341 { 1342 return zipOpenNewFileInZip4_64 (file, filename, zipfi, 1343 extrafield_local, size_extrafield_local, 1344 extrafield_global, size_extrafield_global, 1345 comment, method, level, 0, 1346 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, 1347 NULL, 0, VERSIONMADEBY, 0, zip64); 1348 } 1349 1350 extern int ZEXPORT zipOpenNewFileInZip (zipFile file, const char* filename, const zip_fileinfo* zipfi, 1351 const void* extrafield_local, uInt size_extrafield_local, 1352 const void*extrafield_global, uInt size_extrafield_global, 1353 const char* comment, int method, int level) 1354 { 1355 return zipOpenNewFileInZip4_64 (file, filename, zipfi, 1356 extrafield_local, size_extrafield_local, 1357 extrafield_global, size_extrafield_global, 1358 comment, method, level, 0, 1359 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, 1360 NULL, 0, VERSIONMADEBY, 0, 0); 1361 } 1362 1363 local int zip64FlushWriteBuffer(zip64_internal* zi) 1364 { 1365 int err=ZIP_OK; 1366 1367 if (zi->ci.encrypt != 0) 1368 { 1369 #ifndef NOCRYPT 1370 uInt i; 1371 int t; 1372 for (i=0;i<zi->ci.pos_in_buffered_data;i++) 1373 zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t); 1374 #endif 1375 } 1376 1377 if (ZWRITE64(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) != zi->ci.pos_in_buffered_data) 1378 err = ZIP_ERRNO; 1379 1380 zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data; 1381 1382 #ifdef HAVE_BZIP2 1383 if(zi->ci.method == Z_BZIP2ED) 1384 { 1385 zi->ci.totalUncompressedData += zi->ci.bstream.total_in_lo32; 1386 zi->ci.bstream.total_in_lo32 = 0; 1387 zi->ci.bstream.total_in_hi32 = 0; 1388 } 1389 else 1390 #endif 1391 { 1392 zi->ci.totalUncompressedData += zi->ci.stream.total_in; 1393 zi->ci.stream.total_in = 0; 1394 } 1395 1396 1397 zi->ci.pos_in_buffered_data = 0; 1398 1399 return err; 1400 } 1401 1402 extern int ZEXPORT zipWriteInFileInZip (zipFile file,const void* buf,unsigned int len) 1403 { 1404 zip64_internal* zi; 1405 int err=ZIP_OK; 1406 1407 if (file == NULL) 1408 return ZIP_PARAMERROR; 1409 zi = (zip64_internal*)file; 1410 1411 if (zi->in_opened_file_inzip == 0) 1412 return ZIP_PARAMERROR; 1413 1414 zi->ci.crc32 = crc32(zi->ci.crc32,buf,(uInt)len); 1415 1416 #ifdef HAVE_BZIP2 1417 if(zi->ci.method == Z_BZIP2ED && (!zi->ci.raw)) 1418 { 1419 zi->ci.bstream.next_in = (void*)buf; 1420 zi->ci.bstream.avail_in = len; 1421 err = BZ_RUN_OK; 1422 1423 while ((err==BZ_RUN_OK) && (zi->ci.bstream.avail_in>0)) 1424 { 1425 if (zi->ci.bstream.avail_out == 0) 1426 { 1427 if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) 1428 err = ZIP_ERRNO; 1429 zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; 1430 zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; 1431 } 1432 1433 1434 if(err != BZ_RUN_OK) 1435 break; 1436 1437 if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) 1438 { 1439 uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32; 1440 // uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32; 1441 err=BZ2_bzCompress(&zi->ci.bstream, BZ_RUN); 1442 1443 zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo) ; 1444 } 1445 } 1446 1447 if(err == BZ_RUN_OK) 1448 err = ZIP_OK; 1449 } 1450 else 1451 #endif 1452 { 1453 zi->ci.stream.next_in = (Bytef*)buf; 1454 zi->ci.stream.avail_in = len; 1455 1456 while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0)) 1457 { 1458 if (zi->ci.stream.avail_out == 0) 1459 { 1460 if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) 1461 err = ZIP_ERRNO; 1462 zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; 1463 zi->ci.stream.next_out = zi->ci.buffered_data; 1464 } 1465 1466 1467 if(err != ZIP_OK) 1468 break; 1469 1470 if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) 1471 { 1472 uLong uTotalOutBefore = zi->ci.stream.total_out; 1473 err=deflate(&zi->ci.stream, Z_NO_FLUSH); 1474 if(uTotalOutBefore > zi->ci.stream.total_out) 1475 { 1476 int bBreak = 0; 1477 bBreak++; 1478 } 1479 1480 zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; 1481 } 1482 else 1483 { 1484 uInt copy_this,i; 1485 if (zi->ci.stream.avail_in < zi->ci.stream.avail_out) 1486 copy_this = zi->ci.stream.avail_in; 1487 else 1488 copy_this = zi->ci.stream.avail_out; 1489 1490 for (i = 0; i < copy_this; i++) 1491 *(((char*)zi->ci.stream.next_out)+i) = 1492 *(((const char*)zi->ci.stream.next_in)+i); 1493 { 1494 zi->ci.stream.avail_in -= copy_this; 1495 zi->ci.stream.avail_out-= copy_this; 1496 zi->ci.stream.next_in+= copy_this; 1497 zi->ci.stream.next_out+= copy_this; 1498 zi->ci.stream.total_in+= copy_this; 1499 zi->ci.stream.total_out+= copy_this; 1500 zi->ci.pos_in_buffered_data += copy_this; 1501 } 1502 } 1503 }// while(...) 1504 } 1505 1506 return err; 1507 } 1508 1509 extern int ZEXPORT zipCloseFileInZipRaw (zipFile file, uLong uncompressed_size, uLong crc32) 1510 { 1511 return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32); 1512 } 1513 1514 extern int ZEXPORT zipCloseFileInZipRaw64 (zipFile file, ZPOS64_T uncompressed_size, uLong crc32) 1515 { 1516 zip64_internal* zi; 1517 ZPOS64_T compressed_size; 1518 uLong invalidValue = 0xffffffff; 1519 short datasize = 0; 1520 int err=ZIP_OK; 1521 1522 if (file == NULL) 1523 return ZIP_PARAMERROR; 1524 zi = (zip64_internal*)file; 1525 1526 if (zi->in_opened_file_inzip == 0) 1527 return ZIP_PARAMERROR; 1528 zi->ci.stream.avail_in = 0; 1529 1530 if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) 1531 { 1532 while (err==ZIP_OK) 1533 { 1534 uLong uTotalOutBefore; 1535 if (zi->ci.stream.avail_out == 0) 1536 { 1537 if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) 1538 err = ZIP_ERRNO; 1539 zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; 1540 zi->ci.stream.next_out = zi->ci.buffered_data; 1541 } 1542 uTotalOutBefore = zi->ci.stream.total_out; 1543 err=deflate(&zi->ci.stream, Z_FINISH); 1544 zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; 1545 } 1546 } 1547 else if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) 1548 { 1549 #ifdef HAVE_BZIP2 1550 err = BZ_FINISH_OK; 1551 while (err==BZ_FINISH_OK) 1552 { 1553 uLong uTotalOutBefore; 1554 if (zi->ci.bstream.avail_out == 0) 1555 { 1556 if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) 1557 err = ZIP_ERRNO; 1558 zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; 1559 zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; 1560 } 1561 uTotalOutBefore = zi->ci.bstream.total_out_lo32; 1562 err=BZ2_bzCompress(&zi->ci.bstream, BZ_FINISH); 1563 if(err == BZ_STREAM_END) 1564 err = Z_STREAM_END; 1565 1566 zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore); 1567 } 1568 1569 if(err == BZ_FINISH_OK) 1570 err = ZIP_OK; 1571 #endif 1572 } 1573 1574 if (err==Z_STREAM_END) 1575 err=ZIP_OK; /* this is normal */ 1576 1577 if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK)) 1578 { 1579 if (zip64FlushWriteBuffer(zi)==ZIP_ERRNO) 1580 err = ZIP_ERRNO; 1581 } 1582 1583 if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) 1584 { 1585 int tmp_err = deflateEnd(&zi->ci.stream); 1586 if (err == ZIP_OK) 1587 err = tmp_err; 1588 zi->ci.stream_initialised = 0; 1589 } 1590 #ifdef HAVE_BZIP2 1591 else if((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) 1592 { 1593 int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream); 1594 if (err==ZIP_OK) 1595 err = tmperr; 1596 zi->ci.stream_initialised = 0; 1597 } 1598 #endif 1599 1600 if (!zi->ci.raw) 1601 { 1602 crc32 = (uLong)zi->ci.crc32; 1603 uncompressed_size = zi->ci.totalUncompressedData; 1604 } 1605 compressed_size = zi->ci.totalCompressedData; 1606 1607 # ifndef NOCRYPT 1608 compressed_size += zi->ci.crypt_header_size; 1609 # endif 1610 1611 // update Current Item crc and sizes, 1612 if(compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff) 1613 { 1614 /*version Made by*/ 1615 zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)45,2); 1616 /*version needed*/ 1617 zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)45,2); 1618 1619 } 1620 1621 zip64local_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/ 1622 1623 1624 if(compressed_size >= 0xffffffff) 1625 zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue,4); /*compr size*/ 1626 else 1627 zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size,4); /*compr size*/ 1628 1629 /// set internal file attributes field 1630 if (zi->ci.stream.data_type == Z_ASCII) 1631 zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2); 1632 1633 if(uncompressed_size >= 0xffffffff) 1634 zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue,4); /*uncompr size*/ 1635 else 1636 zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size,4); /*uncompr size*/ 1637 1638 // Add ZIP64 extra info field for uncompressed size 1639 if(uncompressed_size >= 0xffffffff) 1640 datasize += 8; 1641 1642 // Add ZIP64 extra info field for compressed size 1643 if(compressed_size >= 0xffffffff) 1644 datasize += 8; 1645 1646 // Add ZIP64 extra info field for relative offset to local file header of current file 1647 if(zi->ci.pos_local_header >= 0xffffffff) 1648 datasize += 8; 1649 1650 if(datasize > 0) 1651 { 1652 char* p = NULL; 1653 1654 if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree) 1655 { 1656 // we can not write more data to the buffer that we have room for. 1657 return ZIP_BADZIPFILE; 1658 } 1659 1660 p = zi->ci.central_header + zi->ci.size_centralheader; 1661 1662 // Add Extra Information Header for 'ZIP64 information' 1663 zip64local_putValue_inmemory(p, 0x0001, 2); // HeaderID 1664 p += 2; 1665 zip64local_putValue_inmemory(p, datasize, 2); // DataSize 1666 p += 2; 1667 1668 if(uncompressed_size >= 0xffffffff) 1669 { 1670 zip64local_putValue_inmemory(p, uncompressed_size, 8); 1671 p += 8; 1672 } 1673 1674 if(compressed_size >= 0xffffffff) 1675 { 1676 zip64local_putValue_inmemory(p, compressed_size, 8); 1677 p += 8; 1678 } 1679 1680 if(zi->ci.pos_local_header >= 0xffffffff) 1681 { 1682 zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8); 1683 p += 8; 1684 } 1685 1686 // Update how much extra free space we got in the memory buffer 1687 // and increase the centralheader size so the new ZIP64 fields are included 1688 // ( 4 below is the size of HeaderID and DataSize field ) 1689 zi->ci.size_centralExtraFree -= datasize + 4; 1690 zi->ci.size_centralheader += datasize + 4; 1691 1692 // Update the extra info size field 1693 zi->ci.size_centralExtra += datasize + 4; 1694 zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)zi->ci.size_centralExtra,2); 1695 } 1696 1697 if (err==ZIP_OK) 1698 err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader); 1699 1700 free(zi->ci.central_header); 1701 1702 if (err==ZIP_OK) 1703 { 1704 // Update the LocalFileHeader with the new values. 1705 1706 ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); 1707 1708 if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0) 1709 err = ZIP_ERRNO; 1710 1711 if (err==ZIP_OK) 1712 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */ 1713 1714 if(uncompressed_size >= 0xffffffff || compressed_size >= 0xffffffff ) 1715 { 1716 if(zi->ci.pos_zip64extrainfo > 0) 1717 { 1718 // Update the size in the ZIP64 extended field. 1719 if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_zip64extrainfo + 4,ZLIB_FILEFUNC_SEEK_SET)!=0) 1720 err = ZIP_ERRNO; 1721 1722 if (err==ZIP_OK) /* compressed size, unknown */ 1723 err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8); 1724 1725 if (err==ZIP_OK) /* uncompressed size, unknown */ 1726 err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8); 1727 } 1728 else 1729 err = ZIP_BADZIPFILE; // Caller passed zip64 = 0, so no room for zip64 info -> fatal 1730 } 1731 else 1732 { 1733 if (err==ZIP_OK) /* compressed size, unknown */ 1734 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4); 1735 1736 if (err==ZIP_OK) /* uncompressed size, unknown */ 1737 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4); 1738 } 1739 1740 if (ZSEEK64(zi->z_filefunc,zi->filestream, cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0) 1741 err = ZIP_ERRNO; 1742 } 1743 1744 zi->number_entry ++; 1745 zi->in_opened_file_inzip = 0; 1746 1747 return err; 1748 } 1749 1750 extern int ZEXPORT zipCloseFileInZip (zipFile file) 1751 { 1752 return zipCloseFileInZipRaw (file,0,0); 1753 } 1754 1755 int Write_Zip64EndOfCentralDirectoryLocator(zip64_internal* zi, ZPOS64_T zip64eocd_pos_inzip) 1756 { 1757 int err = ZIP_OK; 1758 ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writting_offset; 1759 1760 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDLOCHEADERMAGIC,4); 1761 1762 /*num disks*/ 1763 if (err==ZIP_OK) /* number of the disk with the start of the central directory */ 1764 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); 1765 1766 /*relative offset*/ 1767 if (err==ZIP_OK) /* Relative offset to the Zip64EndOfCentralDirectory */ 1768 err = zip64local_putValue(&zi->z_filefunc,zi->filestream, pos,8); 1769 1770 /*total disks*/ /* Do not support spawning of disk so always say 1 here*/ 1771 if (err==ZIP_OK) /* number of the disk with the start of the central directory */ 1772 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)1,4); 1773 1774 return err; 1775 } 1776 1777 int Write_Zip64EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) 1778 { 1779 int err = ZIP_OK; 1780 1781 uLong Zip64DataSize = 44; 1782 1783 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDHEADERMAGIC,4); 1784 1785 if (err==ZIP_OK) /* size of this 'zip64 end of central directory' */ 1786 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)Zip64DataSize,8); // why ZPOS64_T of this ? 1787 1788 if (err==ZIP_OK) /* version made by */ 1789 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2); 1790 1791 if (err==ZIP_OK) /* version needed */ 1792 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2); 1793 1794 if (err==ZIP_OK) /* number of this disk */ 1795 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); 1796 1797 if (err==ZIP_OK) /* number of the disk with the start of the central directory */ 1798 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); 1799 1800 if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ 1801 err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); 1802 1803 if (err==ZIP_OK) /* total number of entries in the central dir */ 1804 err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); 1805 1806 if (err==ZIP_OK) /* size of the central directory */ 1807 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)size_centraldir,8); 1808 1809 if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */ 1810 { 1811 ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset; 1812 err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos,8); 1813 } 1814 return err; 1815 } 1816 int Write_EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) 1817 { 1818 int err = ZIP_OK; 1819 1820 /*signature*/ 1821 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4); 1822 1823 if (err==ZIP_OK) /* number of this disk */ 1824 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); 1825 1826 if (err==ZIP_OK) /* number of the disk with the start of the central directory */ 1827 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); 1828 1829 if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ 1830 { 1831 { 1832 if(zi->number_entry >= 0xFFFF) 1833 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record 1834 else 1835 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); 1836 } 1837 } 1838 1839 if (err==ZIP_OK) /* total number of entries in the central dir */ 1840 { 1841 if(zi->number_entry >= 0xFFFF) 1842 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record 1843 else 1844 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); 1845 } 1846 1847 if (err==ZIP_OK) /* size of the central directory */ 1848 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4); 1849 1850 if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */ 1851 { 1852 ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset; 1853 if(pos >= 0xffffffff) 1854 { 1855 err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4); 1856 } 1857 else 1858 err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4); 1859 } 1860 1861 return err; 1862 } 1863 1864 int Write_GlobalComment(zip64_internal* zi, const char* global_comment) 1865 { 1866 int err = ZIP_OK; 1867 uInt size_global_comment = 0; 1868 1869 if(global_comment != NULL) 1870 size_global_comment = (uInt)strlen(global_comment); 1871 1872 err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2); 1873 1874 if (err == ZIP_OK && size_global_comment > 0) 1875 { 1876 if (ZWRITE64(zi->z_filefunc,zi->filestream, global_comment, size_global_comment) != size_global_comment) 1877 err = ZIP_ERRNO; 1878 } 1879 return err; 1880 } 1881 1882 extern int ZEXPORT zipClose (zipFile file, const char* global_comment) 1883 { 1884 zip64_internal* zi; 1885 int err = 0; 1886 uLong size_centraldir = 0; 1887 ZPOS64_T centraldir_pos_inzip; 1888 ZPOS64_T pos; 1889 1890 if (file == NULL) 1891 return ZIP_PARAMERROR; 1892 1893 zi = (zip64_internal*)file; 1894 1895 if (zi->in_opened_file_inzip == 1) 1896 { 1897 err = zipCloseFileInZip (file); 1898 } 1899 1900 #ifndef NO_ADDFILEINEXISTINGZIP 1901 if (global_comment==NULL) 1902 global_comment = zi->globalcomment; 1903 #endif 1904 1905 centraldir_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); 1906 1907 if (err==ZIP_OK) 1908 { 1909 linkedlist_datablock_internal* ldi = zi->central_dir.first_block; 1910 while (ldi!=NULL) 1911 { 1912 if ((err==ZIP_OK) && (ldi->filled_in_this_block>0)) 1913 { 1914 if (ZWRITE64(zi->z_filefunc,zi->filestream, ldi->data, ldi->filled_in_this_block) != ldi->filled_in_this_block) 1915 err = ZIP_ERRNO; 1916 } 1917 1918 size_centraldir += ldi->filled_in_this_block; 1919 ldi = ldi->next_datablock; 1920 } 1921 } 1922 free_linkedlist(&(zi->central_dir)); 1923 1924 pos = centraldir_pos_inzip - zi->add_position_when_writting_offset; 1925 if(pos >= 0xffffffff || zi->number_entry > 0xFFFF) 1926 { 1927 ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream); 1928 Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip); 1929 1930 Write_Zip64EndOfCentralDirectoryLocator(zi, Zip64EOCDpos); 1931 } 1932 1933 if (err==ZIP_OK) 1934 err = Write_EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip); 1935 1936 if(err == ZIP_OK) 1937 err = Write_GlobalComment(zi, global_comment); 1938 1939 if (ZCLOSE64(zi->z_filefunc,zi->filestream) != 0) 1940 if (err == ZIP_OK) 1941 err = ZIP_ERRNO; 1942 1943 #ifndef NO_ADDFILEINEXISTINGZIP 1944 TRYFREE(zi->globalcomment); 1945 #endif 1946 TRYFREE(zi); 1947 1948 return err; 1949 } 1950 1951 extern int ZEXPORT zipRemoveExtraInfoBlock (char* pData, int* dataLen, short sHeader) 1952 { 1953 char* p = pData; 1954 int size = 0; 1955 char* pNewHeader; 1956 char* pTmp; 1957 short header; 1958 short dataSize; 1959 1960 int retVal = ZIP_OK; 1961 1962 if(pData == NULL || *dataLen < 4) 1963 return ZIP_PARAMERROR; 1964 1965 pNewHeader = (char*)ALLOC(*dataLen); 1966 pTmp = pNewHeader; 1967 1968 while(p < (pData + *dataLen)) 1969 { 1970 header = *(short*)p; 1971 dataSize = *(((short*)p)+1); 1972 1973 if( header == sHeader ) // Header found. 1974 { 1975 p += dataSize + 4; // skip it. do not copy to temp buffer 1976 } 1977 else 1978 { 1979 // Extra Info block should not be removed, So copy it to the temp buffer. 1980 memcpy(pTmp, p, dataSize + 4); 1981 p += dataSize + 4; 1982 size += dataSize + 4; 1983 } 1984 1985 } 1986 1987 if(size < *dataLen) 1988 { 1989 // clean old extra info block. 1990 memset(pData,0, *dataLen); 1991 1992 // copy the new extra info block over the old 1993 if(size > 0) 1994 memcpy(pData, pNewHeader, size); 1995 1996 // set the new extra info size 1997 *dataLen = size; 1998 1999 retVal = ZIP_OK; 2000 } 2001 else 2002 retVal = ZIP_ERRNO; 2003 2004 TRYFREE(pNewHeader); 2005 2006 return retVal; 2007 } 2008
