source: trunk/gcc/zlib/contrib/minizip/zip.c

Last change on this file was 2, checked in by bird, 22 years ago

Initial revision

  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 20.8 KB
Line 
1/* zip.c -- IO on .zip files using zlib
2 Version 0.15 beta, Mar 19th, 1998,
3
4 Read zip.h for more info
5*/
6
7
8#include <stdio.h>
9#include <stdlib.h>
10#include <string.h>
11#include "zlib.h"
12#include "zip.h"
13
14#ifdef STDC
15# include <stddef.h>
16# include <string.h>
17# include <stdlib.h>
18#endif
19#ifdef NO_ERRNO_H
20 extern int errno;
21#else
22# include <errno.h>
23#endif
24
25
26#ifndef local
27# define local static
28#endif
29/* compile with -Dlocal if your debugger can't find static symbols */
30
31#ifndef VERSIONMADEBY
32# define VERSIONMADEBY (0x0) /* platform depedent */
33#endif
34
35#ifndef Z_BUFSIZE
36#define Z_BUFSIZE (16384)
37#endif
38
39#ifndef Z_MAXFILENAMEINZIP
40#define Z_MAXFILENAMEINZIP (256)
41#endif
42
43#ifndef ALLOC
44# define ALLOC(size) (malloc(size))
45#endif
46#ifndef TRYFREE
47# define TRYFREE(p) {if (p) free(p);}
48#endif
49
50/*
51#define SIZECENTRALDIRITEM (0x2e)
52#define SIZEZIPLOCALHEADER (0x1e)
53*/
54
55/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
56
57#ifndef SEEK_CUR
58#define SEEK_CUR 1
59#endif
60
61#ifndef SEEK_END
62#define SEEK_END 2
63#endif
64
65#ifndef SEEK_SET
66#define SEEK_SET 0
67#endif
68
69const char zip_copyright[] =
70 " zip 0.15 Copyright 1998 Gilles Vollant ";
71
72
73#define SIZEDATA_INDATABLOCK (4096-(4*4))
74
75#define LOCALHEADERMAGIC (0x04034b50)
76#define CENTRALHEADERMAGIC (0x02014b50)
77#define ENDHEADERMAGIC (0x06054b50)
78
79#define FLAG_LOCALHEADER_OFFSET (0x06)
80#define CRC_LOCALHEADER_OFFSET (0x0e)
81
82#define SIZECENTRALHEADER (0x2e) /* 46 */
83
84typedef struct linkedlist_datablock_internal_s
85{
86 struct linkedlist_datablock_internal_s* next_datablock;
87 uLong avail_in_this_block;
88 uLong filled_in_this_block;
89 uLong unused; /* for future use and alignement */
90 unsigned char data[SIZEDATA_INDATABLOCK];
91} linkedlist_datablock_internal;
92
93typedef struct linkedlist_data_s
94{
95 linkedlist_datablock_internal* first_block;
96 linkedlist_datablock_internal* last_block;
97} linkedlist_data;
98
99
100typedef struct
101{
102 z_stream stream; /* zLib stream structure for inflate */
103 int stream_initialised; /* 1 is stream is initialised */
104 uInt pos_in_buffered_data; /* last written byte in buffered_data */
105
106 uLong pos_local_header; /* offset of the local header of the file
107 currenty writing */
108 char* central_header; /* central header data for the current file */
109 uLong size_centralheader; /* size of the central header for cur file */
110 uLong flag; /* flag of the file currently writing */
111
112 int method; /* compression method of file currenty wr.*/
113 Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/
114 uLong dosDate;
115 uLong crc32;
116} curfile_info;
117
118typedef struct
119{
120 FILE * filezip;
121 linkedlist_data central_dir;/* datablock with central dir in construction*/
122 int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/
123 curfile_info ci; /* info on the file curretly writing */
124
125 uLong begin_pos; /* position of the beginning of the zipfile */
126 uLong number_entry;
127} zip_internal;
128
129local linkedlist_datablock_internal* allocate_new_datablock()
130{
131 linkedlist_datablock_internal* ldi;
132 ldi = (linkedlist_datablock_internal*)
133 ALLOC(sizeof(linkedlist_datablock_internal));
134 if (ldi!=NULL)
135 {
136 ldi->next_datablock = NULL ;
137 ldi->filled_in_this_block = 0 ;
138 ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ;
139 }
140 return ldi;
141}
142
143local void free_datablock(ldi)
144 linkedlist_datablock_internal* ldi;
145{
146 while (ldi!=NULL)
147 {
148 linkedlist_datablock_internal* ldinext = ldi->next_datablock;
149 TRYFREE(ldi);
150 ldi = ldinext;
151 }
152}
153
154local void init_linkedlist(ll)
155 linkedlist_data* ll;
156{
157 ll->first_block = ll->last_block = NULL;
158}
159
160local void free_linkedlist(ll)
161 linkedlist_data* ll;
162{
163 free_datablock(ll->first_block);
164 ll->first_block = ll->last_block = NULL;
165}
166
167
168local int add_data_in_datablock(ll,buf,len)
169 linkedlist_data* ll;
170 const void* buf;
171 uLong len;
172{
173 linkedlist_datablock_internal* ldi;
174 const unsigned char* from_copy;
175
176 if (ll==NULL)
177 return ZIP_INTERNALERROR;
178
179 if (ll->last_block == NULL)
180 {
181 ll->first_block = ll->last_block = allocate_new_datablock();
182 if (ll->first_block == NULL)
183 return ZIP_INTERNALERROR;
184 }
185
186 ldi = ll->last_block;
187 from_copy = (unsigned char*)buf;
188
189 while (len>0)
190 {
191 uInt copy_this;
192 uInt i;
193 unsigned char* to_copy;
194
195 if (ldi->avail_in_this_block==0)
196 {
197 ldi->next_datablock = allocate_new_datablock();
198 if (ldi->next_datablock == NULL)
199 return ZIP_INTERNALERROR;
200 ldi = ldi->next_datablock ;
201 ll->last_block = ldi;
202 }
203
204 if (ldi->avail_in_this_block < len)
205 copy_this = (uInt)ldi->avail_in_this_block;
206 else
207 copy_this = (uInt)len;
208
209 to_copy = &(ldi->data[ldi->filled_in_this_block]);
210
211 for (i=0;i<copy_this;i++)
212 *(to_copy+i)=*(from_copy+i);
213
214 ldi->filled_in_this_block += copy_this;
215 ldi->avail_in_this_block -= copy_this;
216 from_copy += copy_this ;
217 len -= copy_this;
218 }
219 return ZIP_OK;
220}
221
222
223local int write_datablock(fout,ll)
224 FILE * fout;
225 linkedlist_data* ll;
226{
227 linkedlist_datablock_internal* ldi;
228 ldi = ll->first_block;
229 while (ldi!=NULL)
230 {
231 if (ldi->filled_in_this_block > 0)
232 if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block,1,fout)!=1)
233 return ZIP_ERRNO;
234 ldi = ldi->next_datablock;
235 }
236 return ZIP_OK;
237}
238
239/****************************************************************************/
240
241/* ===========================================================================
242 Outputs a long in LSB order to the given file
243 nbByte == 1, 2 or 4 (byte, short or long)
244*/
245
246local int ziplocal_putValue OF((FILE *file, uLong x, int nbByte));
247local int ziplocal_putValue (file, x, nbByte)
248 FILE *file;
249 uLong x;
250 int nbByte;
251{
252 unsigned char buf[4];
253 int n;
254 for (n = 0; n < nbByte; n++) {
255 buf[n] = (unsigned char)(x & 0xff);
256 x >>= 8;
257 }
258 if (fwrite(buf,nbByte,1,file)!=1)
259 return ZIP_ERRNO;
260 else
261 return ZIP_OK;
262}
263
264local void ziplocal_putValue_inmemory OF((void* dest, uLong x, int nbByte));
265local void ziplocal_putValue_inmemory (dest, x, nbByte)
266 void* dest;
267 uLong x;
268 int nbByte;
269{
270 unsigned char* buf=(unsigned char*)dest;
271 int n;
272 for (n = 0; n < nbByte; n++) {
273 buf[n] = (unsigned char)(x & 0xff);
274 x >>= 8;
275 }
276}
277/****************************************************************************/
278
279
280local uLong ziplocal_TmzDateToDosDate(ptm,dosDate)
281 tm_zip* ptm;
282 uLong dosDate;
283{
284 uLong year = (uLong)ptm->tm_year;
285 if (year>1980)
286 year-=1980;
287 else if (year>80)
288 year-=80;
289 return
290 (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) |
291 ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour));
292}
293
294
295/****************************************************************************/
296
297extern zipFile ZEXPORT zipOpen (pathname, append)
298 const char *pathname;
299 int append;
300{
301 zip_internal ziinit;
302 zip_internal* zi;
303
304 ziinit.filezip = fopen(pathname,(append == 0) ? "wb" : "ab");
305 if (ziinit.filezip == NULL)
306 return NULL;
307 ziinit.begin_pos = ftell(ziinit.filezip);
308 ziinit.in_opened_file_inzip = 0;
309 ziinit.ci.stream_initialised = 0;
310 ziinit.number_entry = 0;
311 init_linkedlist(&(ziinit.central_dir));
312
313
314 zi = (zip_internal*)ALLOC(sizeof(zip_internal));
315 if (zi==NULL)
316 {
317 fclose(ziinit.filezip);
318 return NULL;
319 }
320
321 *zi = ziinit;
322 return (zipFile)zi;
323}
324
325extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
326 extrafield_local, size_extrafield_local,
327 extrafield_global, size_extrafield_global,
328 comment, method, level)
329 zipFile file;
330 const char* filename;
331 const zip_fileinfo* zipfi;
332 const void* extrafield_local;
333 uInt size_extrafield_local;
334 const void* extrafield_global;
335 uInt size_extrafield_global;
336 const char* comment;
337 int method;
338 int level;
339{
340 zip_internal* zi;
341 uInt size_filename;
342 uInt size_comment;
343 uInt i;
344 int err = ZIP_OK;
345
346 if (file == NULL)
347 return ZIP_PARAMERROR;
348 if ((method!=0) && (method!=Z_DEFLATED))
349 return ZIP_PARAMERROR;
350
351 zi = (zip_internal*)file;
352
353 if (zi->in_opened_file_inzip == 1)
354 {
355 err = zipCloseFileInZip (file);
356 if (err != ZIP_OK)
357 return err;
358 }
359
360
361 if (filename==NULL)
362 filename="-";
363
364 if (comment==NULL)
365 size_comment = 0;
366 else
367 size_comment = strlen(comment);
368
369 size_filename = strlen(filename);
370
371 if (zipfi == NULL)
372 zi->ci.dosDate = 0;
373 else
374 {
375 if (zipfi->dosDate != 0)
376 zi->ci.dosDate = zipfi->dosDate;
377 else zi->ci.dosDate = ziplocal_TmzDateToDosDate(&zipfi->tmz_date,zipfi->dosDate);
378 }
379
380 zi->ci.flag = 0;
381 if ((level==8) || (level==9))
382 zi->ci.flag |= 2;
383 if ((level==2))
384 zi->ci.flag |= 4;
385 if ((level==1))
386 zi->ci.flag |= 6;
387
388 zi->ci.crc32 = 0;
389 zi->ci.method = method;
390 zi->ci.stream_initialised = 0;
391 zi->ci.pos_in_buffered_data = 0;
392 zi->ci.pos_local_header = ftell(zi->filezip);
393 zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename +
394 size_extrafield_global + size_comment;
395 zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader);
396
397 ziplocal_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4);
398 /* version info */
399 ziplocal_putValue_inmemory(zi->ci.central_header+4,(uLong)VERSIONMADEBY,2);
400 ziplocal_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2);
401 ziplocal_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2);
402 ziplocal_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2);
403 ziplocal_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4);
404 ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/
405 ziplocal_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/
406 ziplocal_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/
407 ziplocal_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2);
408 ziplocal_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2);
409 ziplocal_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2);
410 ziplocal_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
411
412 if (zipfi==NULL)
413 ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
414 else
415 ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
416
417 if (zipfi==NULL)
418 ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
419 else
420 ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
421
422 ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header,4);
423
424 for (i=0;i<size_filename;i++)
425 *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i);
426
427 for (i=0;i<size_extrafield_global;i++)
428 *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) =
429 *(((const char*)extrafield_global)+i);
430
431 for (i=0;i<size_comment;i++)
432 *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+
433 size_extrafield_global+i) = *(filename+i);
434 if (zi->ci.central_header == NULL)
435 return ZIP_INTERNALERROR;
436
437 /* write the local header */
438 err = ziplocal_putValue(zi->filezip,(uLong)LOCALHEADERMAGIC,4);
439
440 if (err==ZIP_OK)
441 err = ziplocal_putValue(zi->filezip,(uLong)20,2);/* version needed to extract */
442 if (err==ZIP_OK)
443 err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.flag,2);
444
445 if (err==ZIP_OK)
446 err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.method,2);
447
448 if (err==ZIP_OK)
449 err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.dosDate,4);
450
451 if (err==ZIP_OK)
452 err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* crc 32, unknown */
453 if (err==ZIP_OK)
454 err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* compressed size, unknown */
455 if (err==ZIP_OK)
456 err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* uncompressed size, unknown */
457
458 if (err==ZIP_OK)
459 err = ziplocal_putValue(zi->filezip,(uLong)size_filename,2);
460
461 if (err==ZIP_OK)
462 err = ziplocal_putValue(zi->filezip,(uLong)size_extrafield_local,2);
463
464 if ((err==ZIP_OK) && (size_filename>0))
465 if (fwrite(filename,(uInt)size_filename,1,zi->filezip)!=1)
466 err = ZIP_ERRNO;
467
468 if ((err==ZIP_OK) && (size_extrafield_local>0))
469 if (fwrite(extrafield_local,(uInt)size_extrafield_local,1,zi->filezip)
470 !=1)
471 err = ZIP_ERRNO;
472
473 zi->ci.stream.avail_in = (uInt)0;
474 zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
475 zi->ci.stream.next_out = zi->ci.buffered_data;
476 zi->ci.stream.total_in = 0;
477 zi->ci.stream.total_out = 0;
478
479 if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED))
480 {
481 zi->ci.stream.zalloc = (alloc_func)0;
482 zi->ci.stream.zfree = (free_func)0;
483 zi->ci.stream.opaque = (voidpf)0;
484
485 err = deflateInit2(&zi->ci.stream, level,
486 Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, 0);
487
488 if (err==Z_OK)
489 zi->ci.stream_initialised = 1;
490 }
491
492
493 if (err==Z_OK)
494 zi->in_opened_file_inzip = 1;
495 return err;
496}
497
498extern int ZEXPORT zipWriteInFileInZip (file, buf, len)
499 zipFile file;
500 const voidp buf;
501 unsigned len;
502{
503 zip_internal* zi;
504 int err=ZIP_OK;
505
506 if (file == NULL)
507 return ZIP_PARAMERROR;
508 zi = (zip_internal*)file;
509
510 if (zi->in_opened_file_inzip == 0)
511 return ZIP_PARAMERROR;
512
513 zi->ci.stream.next_in = buf;
514 zi->ci.stream.avail_in = len;
515 zi->ci.crc32 = crc32(zi->ci.crc32,buf,len);
516
517 while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0))
518 {
519 if (zi->ci.stream.avail_out == 0)
520 {
521 if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
522 !=1)
523 err = ZIP_ERRNO;
524 zi->ci.pos_in_buffered_data = 0;
525 zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
526 zi->ci.stream.next_out = zi->ci.buffered_data;
527 }
528
529 if (zi->ci.method == Z_DEFLATED)
530 {
531 uLong uTotalOutBefore = zi->ci.stream.total_out;
532 err=deflate(&zi->ci.stream, Z_NO_FLUSH);
533 zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
534
535 }
536 else
537 {
538 uInt copy_this,i;
539 if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
540 copy_this = zi->ci.stream.avail_in;
541 else
542 copy_this = zi->ci.stream.avail_out;
543 for (i=0;i<copy_this;i++)
544 *(((char*)zi->ci.stream.next_out)+i) =
545 *(((const char*)zi->ci.stream.next_in)+i);
546 {
547 zi->ci.stream.avail_in -= copy_this;
548 zi->ci.stream.avail_out-= copy_this;
549 zi->ci.stream.next_in+= copy_this;
550 zi->ci.stream.next_out+= copy_this;
551 zi->ci.stream.total_in+= copy_this;
552 zi->ci.stream.total_out+= copy_this;
553 zi->ci.pos_in_buffered_data += copy_this;
554 }
555 }
556 }
557
558 return 0;
559}
560
561extern int ZEXPORT zipCloseFileInZip (file)
562 zipFile file;
563{
564 zip_internal* zi;
565 int err=ZIP_OK;
566
567 if (file == NULL)
568 return ZIP_PARAMERROR;
569 zi = (zip_internal*)file;
570
571 if (zi->in_opened_file_inzip == 0)
572 return ZIP_PARAMERROR;
573 zi->ci.stream.avail_in = 0;
574
575 if (zi->ci.method == Z_DEFLATED)
576 while (err==ZIP_OK)
577 {
578 uLong uTotalOutBefore;
579 if (zi->ci.stream.avail_out == 0)
580 {
581 if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
582 !=1)
583 err = ZIP_ERRNO;
584 zi->ci.pos_in_buffered_data = 0;
585 zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
586 zi->ci.stream.next_out = zi->ci.buffered_data;
587 }
588 uTotalOutBefore = zi->ci.stream.total_out;
589 err=deflate(&zi->ci.stream, Z_FINISH);
590 zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
591 }
592
593 if (err==Z_STREAM_END)
594 err=ZIP_OK; /* this is normal */
595
596 if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK))
597 if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
598 !=1)
599 err = ZIP_ERRNO;
600
601 if ((zi->ci.method == Z_DEFLATED) && (err==ZIP_OK))
602 {
603 err=deflateEnd(&zi->ci.stream);
604 zi->ci.stream_initialised = 0;
605 }
606
607 ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)zi->ci.crc32,4); /*crc*/
608 ziplocal_putValue_inmemory(zi->ci.central_header+20,
609 (uLong)zi->ci.stream.total_out,4); /*compr size*/
610 ziplocal_putValue_inmemory(zi->ci.central_header+24,
611 (uLong)zi->ci.stream.total_in,4); /*uncompr size*/
612
613 if (err==ZIP_OK)
614 err = add_data_in_datablock(&zi->central_dir,zi->ci.central_header,
615 (uLong)zi->ci.size_centralheader);
616 free(zi->ci.central_header);
617
618 if (err==ZIP_OK)
619 {
620 long cur_pos_inzip = ftell(zi->filezip);
621 if (fseek(zi->filezip,
622 zi->ci.pos_local_header + 14,SEEK_SET)!=0)
623 err = ZIP_ERRNO;
624
625 if (err==ZIP_OK)
626 err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.crc32,4); /* crc 32, unknown */
627
628 if (err==ZIP_OK) /* compressed size, unknown */
629 err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_out,4);
630
631 if (err==ZIP_OK) /* uncompressed size, unknown */
632 err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_in,4);
633
634 if (fseek(zi->filezip,
635 cur_pos_inzip,SEEK_SET)!=0)
636 err = ZIP_ERRNO;
637 }
638
639 zi->number_entry ++;
640 zi->in_opened_file_inzip = 0;
641
642 return err;
643}
644
645extern int ZEXPORT zipClose (file, global_comment)
646 zipFile file;
647 const char* global_comment;
648{
649 zip_internal* zi;
650 int err = 0;
651 uLong size_centraldir = 0;
652 uLong centraldir_pos_inzip ;
653 uInt size_global_comment;
654 if (file == NULL)
655 return ZIP_PARAMERROR;
656 zi = (zip_internal*)file;
657
658 if (zi->in_opened_file_inzip == 1)
659 {
660 err = zipCloseFileInZip (file);
661 }
662
663 if (global_comment==NULL)
664 size_global_comment = 0;
665 else
666 size_global_comment = strlen(global_comment);
667
668
669 centraldir_pos_inzip = ftell(zi->filezip);
670 if (err==ZIP_OK)
671 {
672 linkedlist_datablock_internal* ldi = zi->central_dir.first_block ;
673 while (ldi!=NULL)
674 {
675 if ((err==ZIP_OK) && (ldi->filled_in_this_block>0))
676 if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block,
677 1,zi->filezip) !=1 )
678 err = ZIP_ERRNO;
679
680 size_centraldir += ldi->filled_in_this_block;
681 ldi = ldi->next_datablock;
682 }
683 }
684 free_datablock(zi->central_dir.first_block);
685
686 if (err==ZIP_OK) /* Magic End */
687 err = ziplocal_putValue(zi->filezip,(uLong)ENDHEADERMAGIC,4);
688
689 if (err==ZIP_OK) /* number of this disk */
690 err = ziplocal_putValue(zi->filezip,(uLong)0,2);
691
692 if (err==ZIP_OK) /* number of the disk with the start of the central directory */
693 err = ziplocal_putValue(zi->filezip,(uLong)0,2);
694
695 if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
696 err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2);
697
698 if (err==ZIP_OK) /* total number of entries in the central dir */
699 err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2);
700
701 if (err==ZIP_OK) /* size of the central directory */
702 err = ziplocal_putValue(zi->filezip,(uLong)size_centraldir,4);
703
704 if (err==ZIP_OK) /* offset of start of central directory with respect to the
705 starting disk number */
706 err = ziplocal_putValue(zi->filezip,(uLong)centraldir_pos_inzip ,4);
707
708 if (err==ZIP_OK) /* zipfile comment length */
709 err = ziplocal_putValue(zi->filezip,(uLong)size_global_comment,2);
710
711 if ((err==ZIP_OK) && (size_global_comment>0))
712 if (fwrite(global_comment,(uInt)size_global_comment,1,zi->filezip) !=1 )
713 err = ZIP_ERRNO;
714 fclose(zi->filezip);
715 TRYFREE(zi);
716
717 return err;
718}
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