common/dist/zlib/contrib/minizip/zip.c

   1 /*      $NetBSD: zip.c,v 1.1.1.1 2006/01/14 20:11:00 christos Exp $     */
   2
   3 /* zip.c -- IO on .zip files using zlib
   4    Version 1.01e, February 12th, 2005
   5
   6    27 Dec 2004 Rolf Kalbermatter
   7    Modification to zipOpen2 to support globalComment retrieval.
   8
   9    Copyright (C) 1998-2005 Gilles Vollant
  10
  11    Read zip.h for more info
  12 */
  13
  14
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <string.h>
  18 #include <time.h>
  19 #include "zlib.h"
  20 #include "zip.h"
  21
  22 #ifdef STDC
  23 #  include <stddef.h>
  24 #  include <string.h>
  25 #  include <stdlib.h>
  26 #endif
  27 #ifdef NO_ERRNO_H
  28     extern int errno;
  29 #else
  30 #   include <errno.h>
  31 #endif
  32
  33
  34 #ifndef local
  35 #  define local static
  36 #endif
  37 /* compile with -Dlocal if your debugger can't find static symbols */
  38
  39 #ifndef VERSIONMADEBY
  40 # define VERSIONMADEBY   (0x0) /* platform depedent */
  41 #endif
  42
  43 #ifndef Z_BUFSIZE
  44 #define Z_BUFSIZE (16384)
  45 #endif
  46
  47 #ifndef Z_MAXFILENAMEINZIP
  48 #define Z_MAXFILENAMEINZIP (256)
  49 #endif
  50
  51 #ifndef ALLOC
  52 # define ALLOC(size) (malloc(size))
  53 #endif
  54 #ifndef TRYFREE
  55 # define TRYFREE(p) {if (p) free(p);}
  56 #endif
  57
  58 /*
  59 #define SIZECENTRALDIRITEM (0x2e)
  60 #define SIZEZIPLOCALHEADER (0x1e)
  61 */
  62
  63 /* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
  64
  65 #ifndef SEEK_CUR
  66 #define SEEK_CUR    1
  67 #endif
  68
  69 #ifndef SEEK_END
  70 #define SEEK_END    2
  71 #endif
  72
  73 #ifndef SEEK_SET
  74 #define SEEK_SET    0
  75 #endif
  76
  77 #ifndef DEF_MEM_LEVEL
  78 #if MAX_MEM_LEVEL >= 8
  79 #  define DEF_MEM_LEVEL 8
  80 #else
  81 #  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
  82 #endif
  83 #endif
  84 const char zip_copyright[] =
  85    " zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
  86
  87
  88 #define SIZEDATA_INDATABLOCK (4096-(4*4))
  89
  90 #define LOCALHEADERMAGIC    (0x04034b50)
  91 #define CENTRALHEADERMAGIC  (0x02014b50)
  92 #define ENDHEADERMAGIC      (0x06054b50)
  93
  94 #define FLAG_LOCALHEADER_OFFSET (0x06)
  95 #define CRC_LOCALHEADER_OFFSET  (0x0e)
  96
  97 #define SIZECENTRALHEADER (0x2e) /* 46 */
  98
  99 typedef struct linkedlist_datablock_internal_s
 100 {
 101   struct linkedlist_datablock_internal_s* next_datablock;
 102   uLong  avail_in_this_block;
 103   uLong  filled_in_this_block;
 104   uLong  unused; /* for future use and alignement */
 105   unsigned char data[SIZEDATA_INDATABLOCK];
 106 } linkedlist_datablock_internal;
 107
 108 typedef struct linkedlist_data_s
 109 {
 110     linkedlist_datablock_internal* first_block;
 111     linkedlist_datablock_internal* last_block;
 112 } linkedlist_data;
 113
 114
 115 typedef struct
 116 {
 117     z_stream stream;            /* zLib stream structure for inflate */
 118     int  stream_initialised;    /* 1 is stream is initialised */
 119     uInt pos_in_buffered_data;  /* last written byte in buffered_data */
 120
 121     uLong pos_local_header;     /* offset of the local header of the file
 122                                      currenty writing */
 123     char* central_header;       /* central header data for the current file */
 124     uLong size_centralheader;   /* size of the central header for cur file */
 125     uLong flag;                 /* flag of the file currently writing */
 126
 127     int  method;                /* compression method of file currenty wr.*/
 128     int  raw;                   /* 1 for directly writing raw data */
 129     Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/
 130     uLong dosDate;
 131     uLong crc32;
 132     int  encrypt;
 133 #ifndef NOCRYPT
 134     unsigned long keys[3];     /* keys defining the pseudo-random sequence */
 135     const unsigned long* pcrc_32_tab;
 136     int crypt_header_size;
 137 #endif
 138 } curfile_info;
 139
 140 typedef struct
 141 {
 142     zlib_filefunc_def z_filefunc;
 143     voidpf filestream;        /* io structore of the zipfile */
 144     linkedlist_data central_dir;/* datablock with central dir in construction*/
 145     int  in_opened_file_inzip;  /* 1 if a file in the zip is currently writ.*/
 146     curfile_info ci;            /* info on the file curretly writing */
 147
 148     uLong begin_pos;            /* position of the beginning of the zipfile */
 149     uLong add_position_when_writting_offset;
 150     uLong number_entry;
 151 #ifndef NO_ADDFILEINEXISTINGZIP
 152     char *globalcomment;
 153 #endif
 154 } zip_internal;
 155
 156
 157
 158 #ifndef NOCRYPT
 159 #define INCLUDECRYPTINGCODE_IFCRYPTALLOWED
 160 #include "crypt.h"
 161 #endif
 162
 163 local linkedlist_datablock_internal* allocate_new_datablock()
 164 {
 165     linkedlist_datablock_internal* ldi;
 166     ldi = (linkedlist_datablock_internal*)
 167                  ALLOC(sizeof(linkedlist_datablock_internal));
 168     if (ldi!=NULL)
 169     {
 170         ldi->next_datablock = NULL ;
 171         ldi->filled_in_this_block = 0 ;
 172         ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ;
 173     }
 174     return ldi;
 175 }
 176
 177 local void free_datablock(ldi)
 178     linkedlist_datablock_internal* ldi;
 179 {
 180     while (ldi!=NULL)
 181     {
 182         linkedlist_datablock_internal* ldinext = ldi->next_datablock;
 183         TRYFREE(ldi);
 184         ldi = ldinext;
 185     }
 186 }
 187
 188 local void init_linkedlist(ll)
 189     linkedlist_data* ll;
 190 {
 191     ll->first_block = ll->last_block = NULL;
 192 }
 193
 194 local void free_linkedlist(ll)
 195     linkedlist_data* ll;
 196 {
 197     free_datablock(ll->first_block);
 198     ll->first_block = ll->last_block = NULL;
 199 }
 200
 201
 202 local int add_data_in_datablock(ll,buf,len)
 203     linkedlist_data* ll;
 204     const void* buf;
 205     uLong len;
 206 {
 207     linkedlist_datablock_internal* ldi;
 208     const unsigned char* from_copy;
 209
 210     if (ll==NULL)
 211         return ZIP_INTERNALERROR;
 212
 213     if (ll->last_block == NULL)
 214     {
 215         ll->first_block = ll->last_block = allocate_new_datablock();
 216         if (ll->first_block == NULL)
 217             return ZIP_INTERNALERROR;
 218     }
 219
 220     ldi = ll->last_block;
 221     from_copy = (unsigned char*)buf;
 222
 223     while (len>0)
 224     {
 225         uInt copy_this;
 226         uInt i;
 227         unsigned char* to_copy;
 228
 229         if (ldi->avail_in_this_block==0)
 230         {
 231             ldi->next_datablock = allocate_new_datablock();
 232             if (ldi->next_datablock == NULL)
 233                 return ZIP_INTERNALERROR;
 234             ldi = ldi->next_datablock ;
 235             ll->last_block = ldi;
 236         }
 237
 238         if (ldi->avail_in_this_block < len)
 239             copy_this = (uInt)ldi->avail_in_this_block;
 240         else
 241             copy_this = (uInt)len;
 242
 243         to_copy = &(ldi->data[ldi->filled_in_this_block]);
 244
 245         for (i=0;i<copy_this;i++)
 246             *(to_copy+i)=*(from_copy+i);
 247
 248         ldi->filled_in_this_block += copy_this;
 249         ldi->avail_in_this_block -= copy_this;
 250         from_copy += copy_this ;
 251         len -= copy_this;
 252     }
 253     return ZIP_OK;
 254 }
 255
 256
 257
 258 /****************************************************************************/
 259
 260 #ifndef NO_ADDFILEINEXISTINGZIP
 261 /* ===========================================================================
 262    Inputs a long in LSB order to the given file
 263    nbByte == 1, 2 or 4 (byte, short or long)
 264 */
 265
 266 local int ziplocal_putValue OF((const zlib_filefunc_def* pzlib_filefunc_def,
 267                                 voidpf filestream, uLong x, int nbByte));
 268 local int ziplocal_putValue (pzlib_filefunc_def, filestream, x, nbByte)
 269     const zlib_filefunc_def* pzlib_filefunc_def;
 270     voidpf filestream;
 271     uLong x;
 272     int nbByte;
 273 {
 274     unsigned char buf[4];
 275     int n;
 276     for (n = 0; n < nbByte; n++)
 277     {
 278         buf[n] = (unsigned char)(x & 0xff);
 279         x >>= 8;
 280     }
 281     if (x != 0)
 282       {     /* data overflow - hack for ZIP64 (X Roche) */
 283       for (n = 0; n < nbByte; n++)
 284         {
 285           buf[n] = 0xff;
 286         }
 287       }
 288
 289     if (ZWRITE(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte)
 290         return ZIP_ERRNO;
 291     else
 292         return ZIP_OK;
 293 }
 294
 295 local void ziplocal_putValue_inmemory OF((void* dest, uLong x, int nbByte));
 296 local void ziplocal_putValue_inmemory (dest, x, nbByte)
 297     void* dest;
 298     uLong x;
 299     int nbByte;
 300 {
 301     unsigned char* buf=(unsigned char*)dest;
 302     int n;
 303     for (n = 0; n < nbByte; n++) {
 304         buf[n] = (unsigned char)(x & 0xff);
 305         x >>= 8;
 306     }
 307
 308     if (x != 0)
 309     {     /* data overflow - hack for ZIP64 */
 310        for (n = 0; n < nbByte; n++)
 311        {
 312           buf[n] = 0xff;
 313        }
 314     }
 315 }
 316
 317 /****************************************************************************/
 318
 319
 320 local uLong ziplocal_TmzDateToDosDate(ptm,dosDate)
 321     const tm_zip* ptm;
 322     uLong dosDate;
 323 {
 324     uLong year = (uLong)ptm->tm_year;
 325     if (year>1980)
 326         year-=1980;
 327     else if (year>80)
 328         year-=80;
 329     return
 330       (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) |
 331         ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour));
 332 }
 333
 334
 335 /****************************************************************************/
 336
 337 local int ziplocal_getByte OF((
 338     const zlib_filefunc_def* pzlib_filefunc_def,
 339     voidpf filestream,
 340     int *pi));
 341
 342 local int ziplocal_getByte(pzlib_filefunc_def,filestream,pi)
 343     const zlib_filefunc_def* pzlib_filefunc_def;
 344     voidpf filestream;
 345     int *pi;
 346 {
 347     unsigned char c;
 348     int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&c,1);
 349     if (err==1)
 350     {
 351         *pi = (int)c;
 352         return ZIP_OK;
 353     }
 354     else
 355     {
 356         if (ZERROR(*pzlib_filefunc_def,filestream))
 357             return ZIP_ERRNO;
 358         else
 359             return ZIP_EOF;
 360     }
 361 }
 362
 363
 364 /* ===========================================================================
 365    Reads a long in LSB order from the given gz_stream. Sets
 366 */
 367 local int ziplocal_getShort OF((
 368     const zlib_filefunc_def* pzlib_filefunc_def,
 369     voidpf filestream,
 370     uLong *pX));
 371
 372 local int ziplocal_getShort (pzlib_filefunc_def,filestream,pX)
 373     const zlib_filefunc_def* pzlib_filefunc_def;
 374     voidpf filestream;
 375     uLong *pX;
 376 {
 377     uLong x ;
 378     int i;
 379     int err;
 380
 381     err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
 382     x = (uLong)i;
 383
 384     if (err==ZIP_OK)
 385         err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
 386     x += ((uLong)i)<<8;
 387
 388     if (err==ZIP_OK)
 389         *pX = x;
 390     else
 391         *pX = 0;
 392     return err;
 393 }
 394
 395 local int ziplocal_getLong OF((
 396     const zlib_filefunc_def* pzlib_filefunc_def,
 397     voidpf filestream,
 398     uLong *pX));
 399
 400 local int ziplocal_getLong (pzlib_filefunc_def,filestream,pX)
 401     const zlib_filefunc_def* pzlib_filefunc_def;
 402     voidpf filestream;
 403     uLong *pX;
 404 {
 405     uLong x ;
 406     int i;
 407     int err;
 408
 409     err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
 410     x = (uLong)i;
 411
 412     if (err==ZIP_OK)
 413         err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
 414     x += ((uLong)i)<<8;
 415
 416     if (err==ZIP_OK)
 417         err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
 418     x += ((uLong)i)<<16;
 419
 420     if (err==ZIP_OK)
 421         err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
 422     x += ((uLong)i)<<24;
 423
 424     if (err==ZIP_OK)
 425         *pX = x;
 426     else
 427         *pX = 0;
 428     return err;
 429 }
 430
 431 #ifndef BUFREADCOMMENT
 432 #define BUFREADCOMMENT (0x400)
 433 #endif
 434 /*
 435   Locate the Central directory of a zipfile (at the end, just before
 436     the global comment)
 437 */
 438 local uLong ziplocal_SearchCentralDir OF((
 439     const zlib_filefunc_def* pzlib_filefunc_def,
 440     voidpf filestream));
 441
 442 local uLong ziplocal_SearchCentralDir(pzlib_filefunc_def,filestream)
 443     const zlib_filefunc_def* pzlib_filefunc_def;
 444     voidpf filestream;
 445 {
 446     unsigned char* buf;
 447     uLong uSizeFile;
 448     uLong uBackRead;
 449     uLong uMaxBack=0xffff; /* maximum size of global comment */
 450     uLong uPosFound=0;
 451
 452     if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
 453         return 0;
 454
 455
 456     uSizeFile = ZTELL(*pzlib_filefunc_def,filestream);
 457
 458     if (uMaxBack>uSizeFile)
 459         uMaxBack = uSizeFile;
 460
 461     buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
 462     if (buf==NULL)
 463         return 0;
 464
 465     uBackRead = 4;
 466     while (uBackRead<uMaxBack)
 467     {
 468         uLong uReadSize,uReadPos ;
 469         int i;
 470         if (uBackRead+BUFREADCOMMENT>uMaxBack)
 471             uBackRead = uMaxBack;
 472         else
 473             uBackRead+=BUFREADCOMMENT;
 474         uReadPos = uSizeFile-uBackRead ;
 475
 476         uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
 477                      (BUFREADCOMMENT+4) : (uSizeFile-uReadPos);
 478         if (ZSEEK(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
 479             break;
 480
 481         if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
 482             break;
 483
 484         for (i=(int)uReadSize-3; (i--)>0;)
 485             if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
 486                 ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
 487             {
 488                 uPosFound = uReadPos+i;
 489                 break;
 490             }
 491
 492         if (uPosFound!=0)
 493             break;
 494     }
 495     TRYFREE(buf);
 496     return uPosFound;
 497 }
 498 #endif /* !NO_ADDFILEINEXISTINGZIP*/
 499
 500 /************************************************************/
 501 extern zipFile ZEXPORT zipOpen2 (pathname, append, globalcomment, pzlib_filefunc_def)
 502     const char *pathname;
 503     int append;
 504     zipcharpc* globalcomment;
 505     zlib_filefunc_def* pzlib_filefunc_def;
 506 {
 507     zip_internal ziinit;
 508     zip_internal* zi;
 509     int err=ZIP_OK;
 510
 511
 512     if (pzlib_filefunc_def==NULL)
 513         fill_fopen_filefunc(&ziinit.z_filefunc);
 514     else
 515         ziinit.z_filefunc = *pzlib_filefunc_def;
 516
 517     ziinit.filestream = (*(ziinit.z_filefunc.zopen_file))
 518                  (ziinit.z_filefunc.opaque,
 519                   pathname,
 520                   (append == APPEND_STATUS_CREATE) ?
 521                   (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) :
 522                     (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING));
 523
 524     if (ziinit.filestream == NULL)
 525         return NULL;
 526     ziinit.begin_pos = ZTELL(ziinit.z_filefunc,ziinit.filestream);
 527     ziinit.in_opened_file_inzip = 0;
 528     ziinit.ci.stream_initialised = 0;
 529     ziinit.number_entry = 0;
 530     ziinit.add_position_when_writting_offset = 0;
 531     init_linkedlist(&(ziinit.central_dir));
 532
 533
 534     zi = (zip_internal*)ALLOC(sizeof(zip_internal));
 535     if (zi==NULL)
 536     {
 537         ZCLOSE(ziinit.z_filefunc,ziinit.filestream);
 538         return NULL;
 539     }
 540
 541     /* now we add file in a zipfile */
 542 #    ifndef NO_ADDFILEINEXISTINGZIP
 543     ziinit.globalcomment = NULL;
 544     if (append == APPEND_STATUS_ADDINZIP)
 545     {
 546         uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
 547
 548         uLong size_central_dir;     /* size of the central directory  */
 549         uLong offset_central_dir;   /* offset of start of central directory */
 550         uLong central_pos,uL;
 551
 552         uLong number_disk;          /* number of the current dist, used for
 553                                     spaning ZIP, unsupported, always 0*/
 554         uLong number_disk_with_CD;  /* number the the disk with central dir, used
 555                                     for spaning ZIP, unsupported, always 0*/
 556         uLong number_entry;
 557         uLong number_entry_CD;      /* total number of entries in
 558                                     the central dir
 559                                     (same than number_entry on nospan) */
 560         uLong size_comment;
 561
 562         central_pos = ziplocal_SearchCentralDir(&ziinit.z_filefunc,ziinit.filestream);
 563         if (central_pos==0)
 564             err=ZIP_ERRNO;
 565
 566         if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
 567                                         central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
 568             err=ZIP_ERRNO;
 569
 570         /* the signature, already checked */
 571         if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&uL)!=ZIP_OK)
 572             err=ZIP_ERRNO;
 573
 574         /* number of this disk */
 575         if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk)!=ZIP_OK)
 576             err=ZIP_ERRNO;
 577
 578         /* number of the disk with the start of the central directory */
 579         if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk_with_CD)!=ZIP_OK)
 580             err=ZIP_ERRNO;
 581
 582         /* total number of entries in the central dir on this disk */
 583         if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry)!=ZIP_OK)
 584             err=ZIP_ERRNO;
 585
 586         /* total number of entries in the central dir */
 587         if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry_CD)!=ZIP_OK)
 588             err=ZIP_ERRNO;
 589
 590         if ((number_entry_CD!=number_entry) ||
 591             (number_disk_with_CD!=0) ||
 592             (number_disk!=0))
 593             err=ZIP_BADZIPFILE;
 594
 595         /* size of the central directory */
 596         if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&size_central_dir)!=ZIP_OK)
 597             err=ZIP_ERRNO;
 598
 599         /* offset of start of central directory with respect to the
 600             starting disk number */
 601         if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&offset_central_dir)!=ZIP_OK)
 602             err=ZIP_ERRNO;
 603
 604         /* zipfile global comment length */
 605         if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&size_comment)!=ZIP_OK)
 606             err=ZIP_ERRNO;
 607
 608         if ((central_pos<offset_central_dir+size_central_dir) &&
 609             (err==ZIP_OK))
 610             err=ZIP_BADZIPFILE;
 611
 612         if (err!=ZIP_OK)
 613         {
 614             ZCLOSE(ziinit.z_filefunc, ziinit.filestream);
 615             return NULL;
 616         }
 617
 618         if (size_comment>0)
 619         {
 620             ziinit.globalcomment = ALLOC(size_comment+1);
 621             if (ziinit.globalcomment)
 622             {
 623                size_comment = ZREAD(ziinit.z_filefunc, ziinit.filestream,ziinit.globalcomment,size_comment);
 624                ziinit.globalcomment[size_comment]=0;
 625             }
 626         }
 627
 628         byte_before_the_zipfile = central_pos -
 629                                 (offset_central_dir+size_central_dir);
 630         ziinit.add_position_when_writting_offset = byte_before_the_zipfile;
 631
 632         {
 633             uLong size_central_dir_to_read = size_central_dir;
 634             size_t buf_size = SIZEDATA_INDATABLOCK;
 635             void* buf_read = (void*)ALLOC(buf_size);
 636             if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
 637                   offset_central_dir + byte_before_the_zipfile,
 638                   ZLIB_FILEFUNC_SEEK_SET) != 0)
 639                   err=ZIP_ERRNO;
 640
 641             while ((size_central_dir_to_read>0) && (err==ZIP_OK))
 642             {
 643                 uLong read_this = SIZEDATA_INDATABLOCK;
 644                 if (read_this > size_central_dir_to_read)
 645                     read_this = size_central_dir_to_read;
 646                 if (ZREAD(ziinit.z_filefunc, ziinit.filestream,buf_read,read_this) != read_this)
 647                     err=ZIP_ERRNO;
 648
 649                 if (err==ZIP_OK)
 650                     err = add_data_in_datablock(&ziinit.central_dir,buf_read,
 651                                                 (uLong)read_this);
 652                 size_central_dir_to_read-=read_this;
 653             }
 654             TRYFREE(buf_read);
 655         }
 656         ziinit.begin_pos = byte_before_the_zipfile;
 657         ziinit.number_entry = number_entry_CD;
 658
 659         if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
 660                   offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
 661             err=ZIP_ERRNO;
 662     }
 663
 664     if (globalcomment)
 665     {
 666       *globalcomment = ziinit.globalcomment;
 667     }
 668 #    endif /* !NO_ADDFILEINEXISTINGZIP*/
 669
 670     if (err != ZIP_OK)
 671     {
 672 #    ifndef NO_ADDFILEINEXISTINGZIP
 673         TRYFREE(ziinit.globalcomment);
 674 #    endif /* !NO_ADDFILEINEXISTINGZIP*/
 675         TRYFREE(zi);
 676         return NULL;
 677     }
 678     else
 679     {
 680         *zi = ziinit;
 681         return (zipFile)zi;
 682     }
 683 }
 684
 685 extern zipFile ZEXPORT zipOpen (pathname, append)
 686     const char *pathname;
 687     int append;
 688 {
 689     return zipOpen2(pathname,append,NULL,NULL);
 690 }
 691
 692 extern int ZEXPORT zipOpenNewFileInZip3 (file, filename, zipfi,
 693                                          extrafield_local, size_extrafield_local,
 694                                          extrafield_global, size_extrafield_global,
 695                                          comment, method, level, raw,
 696                                          windowBits, memLevel, strategy,
 697                                          password, crcForCrypting)
 698     zipFile file;
 699     const char* filename;
 700     const zip_fileinfo* zipfi;
 701     const void* extrafield_local;
 702     uInt size_extrafield_local;
 703     const void* extrafield_global;
 704     uInt size_extrafield_global;
 705     const char* comment;
 706     int method;
 707     int level;
 708     int raw;
 709     int windowBits;
 710     int memLevel;
 711     int strategy;
 712     const char* password;
 713     uLong crcForCrypting;
 714 {
 715     zip_internal* zi;
 716     uInt size_filename;
 717     uInt size_comment;
 718     uInt i;
 719     int err = ZIP_OK;
 720
 721 #    ifdef NOCRYPT
 722     if (password != NULL)
 723         return ZIP_PARAMERROR;
 724 #    endif
 725
 726     if (file == NULL)
 727         return ZIP_PARAMERROR;
 728     if ((method!=0) && (method!=Z_DEFLATED))
 729         return ZIP_PARAMERROR;
 730
 731     zi = (zip_internal*)file;
 732
 733     if (zi->in_opened_file_inzip == 1)
 734     {
 735         err = zipCloseFileInZip (file);
 736         if (err != ZIP_OK)
 737             return err;
 738     }
 739
 740
 741     if (filename==NULL)
 742         filename="-";
 743
 744     if (comment==NULL)
 745         size_comment = 0;
 746     else
 747         size_comment = (uInt)strlen(comment);
 748
 749     size_filename = (uInt)strlen(filename);
 750
 751     if (zipfi == NULL)
 752         zi->ci.dosDate = 0;
 753     else
 754     {
 755         if (zipfi->dosDate != 0)
 756             zi->ci.dosDate = zipfi->dosDate;
 757         else zi->ci.dosDate = ziplocal_TmzDateToDosDate(&zipfi->tmz_date,zipfi->dosDate);
 758     }
 759
 760     zi->ci.flag = 0;
 761     if ((level==8) || (level==9))
 762       zi->ci.flag |= 2;
 763     if ((level==2))
 764       zi->ci.flag |= 4;
 765     if ((level==1))
 766       zi->ci.flag |= 6;
 767     if (password != NULL)
 768       zi->ci.flag |= 1;
 769
 770     zi->ci.crc32 = 0;
 771     zi->ci.method = method;
 772     zi->ci.encrypt = 0;
 773     zi->ci.stream_initialised = 0;
 774     zi->ci.pos_in_buffered_data = 0;
 775     zi->ci.raw = raw;
 776     zi->ci.pos_local_header = ZTELL(zi->z_filefunc,zi->filestream) ;
 777     zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename +
 778                                       size_extrafield_global + size_comment;
 779     zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader);
 780
 781     ziplocal_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4);
 782     /* version info */
 783     ziplocal_putValue_inmemory(zi->ci.central_header+4,(uLong)VERSIONMADEBY,2);
 784     ziplocal_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2);
 785     ziplocal_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2);
 786     ziplocal_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2);
 787     ziplocal_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4);
 788     ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/
 789     ziplocal_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/
 790     ziplocal_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/
 791     ziplocal_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2);
 792     ziplocal_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2);
 793     ziplocal_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2);
 794     ziplocal_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
 795
 796     if (zipfi==NULL)
 797         ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
 798     else
 799         ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
 800
 801     if (zipfi==NULL)
 802         ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
 803     else
 804         ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
 805
 806     ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header- zi->add_position_when_writting_offset,4);
 807
 808     for (i=0;i<size_filename;i++)
 809         *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i);
 810
 811     for (i=0;i<size_extrafield_global;i++)
 812         *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) =
 813               *(((const char*)extrafield_global)+i);
 814
 815     for (i=0;i<size_comment;i++)
 816         *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+
 817               size_extrafield_global+i) = *(comment+i);
 818     if (zi->ci.central_header == NULL)
 819         return ZIP_INTERNALERROR;
 820
 821     /* write the local header */
 822     err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC,4);
 823
 824     if (err==ZIP_OK)
 825         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */
 826     if (err==ZIP_OK)
 827         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2);
 828
 829     if (err==ZIP_OK)
 830         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2);
 831
 832     if (err==ZIP_OK)
 833         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4);
 834
 835     if (err==ZIP_OK)
 836         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */
 837     if (err==ZIP_OK)
 838         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */
 839     if (err==ZIP_OK)
 840         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */
 841
 842     if (err==ZIP_OK)
 843         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2);
 844
 845     if (err==ZIP_OK)
 846         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield_local,2);
 847
 848     if ((err==ZIP_OK) && (size_filename>0))
 849         if (ZWRITE(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename)
 850                 err = ZIP_ERRNO;
 851
 852     if ((err==ZIP_OK) && (size_extrafield_local>0))
 853         if (ZWRITE(zi->z_filefunc,zi->filestream,extrafield_local,size_extrafield_local)
 854                                                                            !=size_extrafield_local)
 855                 err = ZIP_ERRNO;
 856
 857     zi->ci.stream.avail_in = (uInt)0;
 858     zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
 859     zi->ci.stream.next_out = zi->ci.buffered_data;
 860     zi->ci.stream.total_in = 0;
 861     zi->ci.stream.total_out = 0;
 862
 863     if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
 864     {
 865         zi->ci.stream.zalloc = (alloc_func)0;
 866         zi->ci.stream.zfree = (free_func)0;
 867         zi->ci.stream.opaque = (voidpf)0;
 868
 869         if (windowBits>0)
 870             windowBits = -windowBits;
 871
 872         err = deflateInit2(&zi->ci.stream, level,
 873                Z_DEFLATED, windowBits, memLevel, strategy);
 874
 875         if (err==Z_OK)
 876             zi->ci.stream_initialised = 1;
 877     }
 878 #    ifndef NOCRYPT
 879     zi->ci.crypt_header_size = 0;
 880     if ((err==Z_OK) && (password != NULL))
 881     {
 882         unsigned char bufHead[RAND_HEAD_LEN];
 883         unsigned int sizeHead;
 884         zi->ci.encrypt = 1;
 885         zi->ci.pcrc_32_tab = get_crc_table();
 886         /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/
 887
 888         sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting);
 889         zi->ci.crypt_header_size = sizeHead;
 890
 891         if (ZWRITE(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead)
 892                 err = ZIP_ERRNO;
 893     }
 894 #    endif
 895
 896     if (err==Z_OK)
 897         zi->in_opened_file_inzip = 1;
 898     return err;
 899 }
 900
 901 extern int ZEXPORT zipOpenNewFileInZip2(file, filename, zipfi,
 902                                         extrafield_local, size_extrafield_local,
 903                                         extrafield_global, size_extrafield_global,
 904                                         comment, method, level, raw)
 905     zipFile file;
 906     const char* filename;
 907     const zip_fileinfo* zipfi;
 908     const void* extrafield_local;
 909     uInt size_extrafield_local;
 910     const void* extrafield_global;
 911     uInt size_extrafield_global;
 912     const char* comment;
 913     int method;
 914     int level;
 915     int raw;
 916 {
 917     return zipOpenNewFileInZip3 (file, filename, zipfi,
 918                                  extrafield_local, size_extrafield_local,
 919                                  extrafield_global, size_extrafield_global,
 920                                  comment, method, level, raw,
 921                                  -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
 922                                  NULL, 0);
 923 }
 924
 925 extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
 926                                         extrafield_local, size_extrafield_local,
 927                                         extrafield_global, size_extrafield_global,
 928                                         comment, method, level)
 929     zipFile file;
 930     const char* filename;
 931     const zip_fileinfo* zipfi;
 932     const void* extrafield_local;
 933     uInt size_extrafield_local;
 934     const void* extrafield_global;
 935     uInt size_extrafield_global;
 936     const char* comment;
 937     int method;
 938     int level;
 939 {
 940     return zipOpenNewFileInZip2 (file, filename, zipfi,
 941                                  extrafield_local, size_extrafield_local,
 942                                  extrafield_global, size_extrafield_global,
 943                                  comment, method, level, 0);
 944 }
 945
 946 local int zipFlushWriteBuffer(zi)
 947   zip_internal* zi;
 948 {
 949     int err=ZIP_OK;
 950
 951     if (zi->ci.encrypt != 0)
 952     {
 953 #ifndef NOCRYPT
 954         uInt i;
 955         int t;
 956         for (i=0;i<zi->ci.pos_in_buffered_data;i++)
 957             zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab,
 958                                        zi->ci.buffered_data[i],t);
 959 #endif
 960     }
 961     if (ZWRITE(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data)
 962                                                                     !=zi->ci.pos_in_buffered_data)
 963       err = ZIP_ERRNO;
 964     zi->ci.pos_in_buffered_data = 0;
 965     return err;
 966 }
 967
 968 extern int ZEXPORT zipWriteInFileInZip (file, buf, len)
 969     zipFile file;
 970     const void* buf;
 971     unsigned len;
 972 {
 973     zip_internal* zi;
 974     int err=ZIP_OK;
 975
 976     if (file == NULL)
 977         return ZIP_PARAMERROR;
 978     zi = (zip_internal*)file;
 979
 980     if (zi->in_opened_file_inzip == 0)
 981         return ZIP_PARAMERROR;
 982
 983     zi->ci.stream.next_in = (void*)buf;
 984     zi->ci.stream.avail_in = len;
 985     zi->ci.crc32 = crc32(zi->ci.crc32,buf,len);
 986
 987     while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0))
 988     {
 989         if (zi->ci.stream.avail_out == 0)
 990         {
 991             if (zipFlushWriteBuffer(zi) == ZIP_ERRNO)
 992                 err = ZIP_ERRNO;
 993             zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
 994             zi->ci.stream.next_out = zi->ci.buffered_data;
 995         }
 996
 997
 998         if(err != ZIP_OK)
 999             break;
1000
1001         if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
1002         {
1003             uLong uTotalOutBefore = zi->ci.stream.total_out;
1004             err=deflate(&zi->ci.stream,  Z_NO_FLUSH);
1005             zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
1006
1007         }
1008         else
1009         {
1010             uInt copy_this,i;
1011             if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
1012                 copy_this = zi->ci.stream.avail_in;
1013             else
1014                 copy_this = zi->ci.stream.avail_out;
1015             for (i=0;i<copy_this;i++)
1016                 *(((char*)zi->ci.stream.next_out)+i) =
1017                     *(((const char*)zi->ci.stream.next_in)+i);
1018             {
1019                 zi->ci.stream.avail_in -= copy_this;
1020                 zi->ci.stream.avail_out-= copy_this;
1021                 zi->ci.stream.next_in+= copy_this;
1022                 zi->ci.stream.next_out+= copy_this;
1023                 zi->ci.stream.total_in+= copy_this;
1024                 zi->ci.stream.total_out+= copy_this;
1025                 zi->ci.pos_in_buffered_data += copy_this;
1026             }
1027         }
1028     }
1029
1030     return err;
1031 }
1032
1033 extern int ZEXPORT zipCloseFileInZipRaw (file, uncompressed_size, crc32)
1034     zipFile file;
1035     uLong uncompressed_size;
1036     uLong crc32;
1037 {
1038     zip_internal* zi;
1039     uLong compressed_size;
1040     int err=ZIP_OK;
1041
1042     if (file == NULL)
1043         return ZIP_PARAMERROR;
1044     zi = (zip_internal*)file;
1045
1046     if (zi->in_opened_file_inzip == 0)
1047         return ZIP_PARAMERROR;
1048     zi->ci.stream.avail_in = 0;
1049
1050     if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
1051         while (err==ZIP_OK)
1052     {
1053         uLong uTotalOutBefore;
1054         if (zi->ci.stream.avail_out == 0)
1055         {
1056             if (zipFlushWriteBuffer(zi) == ZIP_ERRNO)
1057                 err = ZIP_ERRNO;
1058             zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
1059             zi->ci.stream.next_out = zi->ci.buffered_data;
1060         }
1061         uTotalOutBefore = zi->ci.stream.total_out;
1062         err=deflate(&zi->ci.stream,  Z_FINISH);
1063         zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
1064     }
1065
1066     if (err==Z_STREAM_END)
1067         err=ZIP_OK; /* this is normal */
1068
1069     if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK))
1070         if (zipFlushWriteBuffer(zi)==ZIP_ERRNO)
1071             err = ZIP_ERRNO;
1072
1073     if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
1074     {
1075         err=deflateEnd(&zi->ci.stream);
1076         zi->ci.stream_initialised = 0;
1077     }
1078
1079     if (!zi->ci.raw)
1080     {
1081         crc32 = (uLong)zi->ci.crc32;
1082         uncompressed_size = (uLong)zi->ci.stream.total_in;
1083     }
1084     compressed_size = (uLong)zi->ci.stream.total_out;
1085 #    ifndef NOCRYPT
1086     compressed_size += zi->ci.crypt_header_size;
1087 #    endif
1088
1089     ziplocal_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/
1090     ziplocal_putValue_inmemory(zi->ci.central_header+20,
1091                                 compressed_size,4); /*compr size*/
1092     if (zi->ci.stream.data_type == Z_ASCII)
1093         ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2);
1094     ziplocal_putValue_inmemory(zi->ci.central_header+24,
1095                                 uncompressed_size,4); /*uncompr size*/
1096
1097     if (err==ZIP_OK)
1098         err = add_data_in_datablock(&zi->central_dir,zi->ci.central_header,
1099                                        (uLong)zi->ci.size_centralheader);
1100     free(zi->ci.central_header);
1101
1102     if (err==ZIP_OK)
1103     {
1104         long cur_pos_inzip = ZTELL(zi->z_filefunc,zi->filestream);
1105         if (ZSEEK(zi->z_filefunc,zi->filestream,
1106                   zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0)
1107             err = ZIP_ERRNO;
1108
1109         if (err==ZIP_OK)
1110             err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */
1111
1112         if (err==ZIP_OK) /* compressed size, unknown */
1113             err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4);
1114
1115         if (err==ZIP_OK) /* uncompressed size, unknown */
1116             err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4);
1117
1118         if (ZSEEK(zi->z_filefunc,zi->filestream,
1119                   cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0)
1120             err = ZIP_ERRNO;
1121     }
1122
1123     zi->number_entry ++;
1124     zi->in_opened_file_inzip = 0;
1125
1126     return err;
1127 }
1128
1129 extern int ZEXPORT zipCloseFileInZip (file)
1130     zipFile file;
1131 {
1132     return zipCloseFileInZipRaw (file,0,0);
1133 }
1134
1135 extern int ZEXPORT zipClose (file, global_comment)
1136     zipFile file;
1137     const char* global_comment;
1138 {
1139     zip_internal* zi;
1140     int err = 0;
1141     uLong size_centraldir = 0;
1142     uLong centraldir_pos_inzip;
1143     uInt size_global_comment;
1144     if (file == NULL)
1145         return ZIP_PARAMERROR;
1146     zi = (zip_internal*)file;
1147
1148     if (zi->in_opened_file_inzip == 1)
1149     {
1150         err = zipCloseFileInZip (file);
1151     }
1152
1153 #ifndef NO_ADDFILEINEXISTINGZIP
1154     if (global_comment==NULL)
1155         global_comment = zi->globalcomment;
1156 #endif
1157     if (global_comment==NULL)
1158         size_global_comment = 0;
1159     else
1160         size_global_comment = (uInt)strlen(global_comment);
1161
1162     centraldir_pos_inzip = ZTELL(zi->z_filefunc,zi->filestream);
1163     if (err==ZIP_OK)
1164     {
1165         linkedlist_datablock_internal* ldi = zi->central_dir.first_block ;
1166         while (ldi!=NULL)
1167         {
1168             if ((err==ZIP_OK) && (ldi->filled_in_this_block>0))
1169                 if (ZWRITE(zi->z_filefunc,zi->filestream,
1170                            ldi->data,ldi->filled_in_this_block)
1171                               !=ldi->filled_in_this_block )
1172                     err = ZIP_ERRNO;
1173
1174             size_centraldir += ldi->filled_in_this_block;
1175             ldi = ldi->next_datablock;
1176         }
1177     }
1178     free_datablock(zi->central_dir.first_block);
1179
1180     if (err==ZIP_OK) /* Magic End */
1181         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4);
1182
1183     if (err==ZIP_OK) /* number of this disk */
1184         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
1185
1186     if (err==ZIP_OK) /* number of the disk with the start of the central directory */
1187         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
1188
1189     if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
1190         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
1191
1192     if (err==ZIP_OK) /* total number of entries in the central dir */
1193         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
1194
1195     if (err==ZIP_OK) /* size of the central directory */
1196         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4);
1197
1198     if (err==ZIP_OK) /* offset of start of central directory with respect to the
1199                             starting disk number */
1200         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,
1201                                 (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4);
1202
1203     if (err==ZIP_OK) /* zipfile comment length */
1204         err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2);
1205
1206     if ((err==ZIP_OK) && (size_global_comment>0))
1207         if (ZWRITE(zi->z_filefunc,zi->filestream,
1208                    global_comment,size_global_comment) != size_global_comment)
1209                 err = ZIP_ERRNO;
1210
1211     if (ZCLOSE(zi->z_filefunc,zi->filestream) != 0)
1212         if (err == ZIP_OK)
1213             err = ZIP_ERRNO;
1214
1215 #ifndef NO_ADDFILEINEXISTINGZIP
1216     TRYFREE(zi->globalcomment);
1217 #endif
1218     TRYFREE(zi);
1219
1220     return err;
1221 }