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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [zlib/] [contrib/] [minizip/] [zip.c] - Blame information for rev 745

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

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