1 /*
2 minizip.c
3 Version 1.1, February 14h, 2010
4 sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
5
6 Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
7
8 Modifications of Unzip for Zip64
9 Copyright (C) 2007-2008 Even Rouault
10
11 Modifications for Zip64 support on both zip and unzip
12 Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
13 */
14
15 #if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__)) && (!defined(__ANDROID_API__))
16 #ifndef __USE_FILE_OFFSET64
17 #define __USE_FILE_OFFSET64
18 #endif
19 #ifndef __USE_LARGEFILE64
20 #define __USE_LARGEFILE64
21 #endif
22 #ifndef _LARGEFILE64_SOURCE
23 #define _LARGEFILE64_SOURCE
24 #endif
25 #ifndef _FILE_OFFSET_BIT
26 #define _FILE_OFFSET_BIT 64
27 #endif
28 #endif
29
30 #if defined(__APPLE__) || defined(__Fuchsia__) || defined(__ANDROID_API__)
31 // In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
32 #define FOPEN_FUNC(filename, mode) fopen(filename, mode)
33 #define FTELLO_FUNC(stream) ftello(stream)
34 #define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
35 #else
36 #define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
37 #define FTELLO_FUNC(stream) ftello64(stream)
38 #define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
39 #endif
40
41
42
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <string.h>
46 #include <time.h>
47 #include <errno.h>
48 #include <fcntl.h>
49
50 #ifdef _WIN32
51 # include <direct.h>
52 # include <io.h>
53 #else
54 # include <unistd.h>
55 # include <utime.h>
56 # include <sys/types.h>
57 # include <sys/stat.h>
58 #endif
59
60 #include "zip.h"
61
62 #ifdef _WIN32
63 #define USEWIN32IOAPI
64 #include "iowin32.h"
65 #endif
66
67
68
69 #define WRITEBUFFERSIZE (16384)
70 #define MAXFILENAME (256)
71
72 #ifdef _WIN32
filetime(f,tmzip,dt)73 uLong filetime(f, tmzip, dt)
74 char *f; /* name of file to get info on */
75 tm_zip *tmzip; /* return value: access, modific. and creation times */
76 uLong *dt; /* dostime */
77 {
78 int ret = 0;
79 {
80 FILETIME ftLocal;
81 HANDLE hFind;
82 WIN32_FIND_DATAA ff32;
83
84 hFind = FindFirstFileA(f,&ff32);
85 if (hFind != INVALID_HANDLE_VALUE)
86 {
87 FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
88 FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0);
89 FindClose(hFind);
90 ret = 1;
91 }
92 }
93 return ret;
94 }
95 #else
96 #if defined(unix) || defined(__APPLE__) || defined(__Fuchsia__) || defined(__ANDROID_API__)
filetime(f,tmzip,dt)97 uLong filetime(f, tmzip, dt)
98 char *f; /* name of file to get info on */
99 tm_zip *tmzip; /* return value: access, modific. and creation times */
100 uLong *dt; /* dostime */
101 {
102 int ret=0;
103 struct stat s; /* results of stat() */
104 struct tm* filedate;
105 time_t tm_t=0;
106
107 if (strcmp(f,"-")!=0)
108 {
109 char name[MAXFILENAME+1];
110 int len = strlen(f);
111 if (len > MAXFILENAME)
112 len = MAXFILENAME;
113
114 strncpy(name, f,MAXFILENAME-1);
115 /* strncpy doesnt append the trailing NULL, of the string is too long. */
116 name[ MAXFILENAME ] = '\0';
117
118 if (name[len - 1] == '/')
119 name[len - 1] = '\0';
120 /* not all systems allow stat'ing a file with / appended */
121 if (stat(name,&s)==0)
122 {
123 tm_t = s.st_mtime;
124 ret = 1;
125 }
126 }
127 filedate = localtime(&tm_t);
128
129 tmzip->tm_sec = filedate->tm_sec;
130 tmzip->tm_min = filedate->tm_min;
131 tmzip->tm_hour = filedate->tm_hour;
132 tmzip->tm_mday = filedate->tm_mday;
133 tmzip->tm_mon = filedate->tm_mon ;
134 tmzip->tm_year = filedate->tm_year;
135
136 return ret;
137 }
138 #else
filetime(f,tmzip,dt)139 uLong filetime(f, tmzip, dt)
140 char *f; /* name of file to get info on */
141 tm_zip *tmzip; /* return value: access, modific. and creation times */
142 uLong *dt; /* dostime */
143 {
144 return 0;
145 }
146 #endif
147 #endif
148
149
150
151
check_exist_file(filename)152 int check_exist_file(filename)
153 const char* filename;
154 {
155 FILE* ftestexist;
156 int ret = 1;
157 ftestexist = FOPEN_FUNC(filename,"rb");
158 if (ftestexist==NULL)
159 ret = 0;
160 else
161 fclose(ftestexist);
162 return ret;
163 }
164
do_banner()165 void do_banner()
166 {
167 printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n");
168 printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n");
169 }
170
do_help()171 void do_help()
172 {
173 printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \
174 " -o Overwrite existing file.zip\n" \
175 " -a Append to existing file.zip\n" \
176 " -0 Store only\n" \
177 " -1 Compress faster\n" \
178 " -9 Compress better\n\n" \
179 " -j exclude path. store only the file name.\n\n");
180 }
181
182 /* calculate the CRC32 of a file,
183 because to encrypt a file, we need known the CRC32 of the file before */
getFileCrc(const char * filenameinzip,void * buf,unsigned long size_buf,unsigned long * result_crc)184 int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc)
185 {
186 unsigned long calculate_crc=0;
187 int err=ZIP_OK;
188 FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
189
190 unsigned long size_read = 0;
191 unsigned long total_read = 0;
192 if (fin==NULL)
193 {
194 err = ZIP_ERRNO;
195 }
196
197 if (err == ZIP_OK)
198 do
199 {
200 err = ZIP_OK;
201 size_read = (int)fread(buf,1,size_buf,fin);
202 if (size_read < size_buf)
203 if (feof(fin)==0)
204 {
205 printf("error in reading %s\n",filenameinzip);
206 err = ZIP_ERRNO;
207 }
208
209 if (size_read>0)
210 calculate_crc = crc32(calculate_crc,buf,size_read);
211 total_read += size_read;
212
213 } while ((err == ZIP_OK) && (size_read>0));
214
215 if (fin)
216 fclose(fin);
217
218 *result_crc=calculate_crc;
219 printf("file %s crc %lx\n", filenameinzip, calculate_crc);
220 return err;
221 }
222
isLargeFile(const char * filename)223 int isLargeFile(const char* filename)
224 {
225 int largeFile = 0;
226 ZPOS64_T pos = 0;
227 FILE* pFile = FOPEN_FUNC(filename, "rb");
228
229 if(pFile != NULL)
230 {
231 int n = FSEEKO_FUNC(pFile, 0, SEEK_END);
232 pos = FTELLO_FUNC(pFile);
233
234 printf("File : %s is %lld bytes\n", filename, pos);
235
236 if(pos >= 0xffffffff)
237 largeFile = 1;
238
239 fclose(pFile);
240 }
241
242 return largeFile;
243 }
244
main(argc,argv)245 int main(argc,argv)
246 int argc;
247 char *argv[];
248 {
249 int i;
250 int opt_overwrite=0;
251 int opt_compress_level=Z_DEFAULT_COMPRESSION;
252 int opt_exclude_path=0;
253 int zipfilenamearg = 0;
254 char filename_try[MAXFILENAME+16];
255 int zipok;
256 int err=0;
257 int size_buf=0;
258 void* buf=NULL;
259 const char* password=NULL;
260
261
262 do_banner();
263 if (argc==1)
264 {
265 do_help();
266 return 0;
267 }
268 else
269 {
270 for (i=1;i<argc;i++)
271 {
272 if ((*argv[i])=='-')
273 {
274 const char *p=argv[i]+1;
275
276 while ((*p)!='\0')
277 {
278 char c=*(p++);;
279 if ((c=='o') || (c=='O'))
280 opt_overwrite = 1;
281 if ((c=='a') || (c=='A'))
282 opt_overwrite = 2;
283 if ((c>='0') && (c<='9'))
284 opt_compress_level = c-'0';
285 if ((c=='j') || (c=='J'))
286 opt_exclude_path = 1;
287
288 if (((c=='p') || (c=='P')) && (i+1<argc))
289 {
290 password=argv[i+1];
291 i++;
292 }
293 }
294 }
295 else
296 {
297 if (zipfilenamearg == 0)
298 {
299 zipfilenamearg = i ;
300 }
301 }
302 }
303 }
304
305 size_buf = WRITEBUFFERSIZE;
306 buf = (void*)malloc(size_buf);
307 if (buf==NULL)
308 {
309 printf("Error allocating memory\n");
310 return ZIP_INTERNALERROR;
311 }
312
313 if (zipfilenamearg==0)
314 {
315 zipok=0;
316 }
317 else
318 {
319 int i,len;
320 int dot_found=0;
321
322 zipok = 1 ;
323 strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
324 /* strncpy doesnt append the trailing NULL, of the string is too long. */
325 filename_try[ MAXFILENAME ] = '\0';
326
327 len=(int)strlen(filename_try);
328 for (i=0;i<len;i++)
329 if (filename_try[i]=='.')
330 dot_found=1;
331
332 if (dot_found==0)
333 strcat(filename_try,".zip");
334
335 if (opt_overwrite==2)
336 {
337 /* if the file don't exist, we not append file */
338 if (check_exist_file(filename_try)==0)
339 opt_overwrite=1;
340 }
341 else
342 if (opt_overwrite==0)
343 if (check_exist_file(filename_try)!=0)
344 {
345 char rep=0;
346 do
347 {
348 char answer[128];
349 int ret;
350 printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
351 ret = scanf("%1s",answer);
352 if (ret != 1)
353 {
354 exit(EXIT_FAILURE);
355 }
356 rep = answer[0] ;
357 if ((rep>='a') && (rep<='z'))
358 rep -= 0x20;
359 }
360 while ((rep!='Y') && (rep!='N') && (rep!='A'));
361 if (rep=='N')
362 zipok = 0;
363 if (rep=='A')
364 opt_overwrite = 2;
365 }
366 }
367
368 if (zipok==1)
369 {
370 zipFile zf;
371 int errclose;
372 # ifdef USEWIN32IOAPI
373 zlib_filefunc64_def ffunc;
374 fill_win32_filefunc64A(&ffunc);
375 zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
376 # else
377 zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0);
378 # endif
379
380 if (zf == NULL)
381 {
382 printf("error opening %s\n",filename_try);
383 err= ZIP_ERRNO;
384 }
385 else
386 printf("creating %s\n",filename_try);
387
388 for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
389 {
390 if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) &&
391 ((argv[i][1]=='o') || (argv[i][1]=='O') ||
392 (argv[i][1]=='a') || (argv[i][1]=='A') ||
393 (argv[i][1]=='p') || (argv[i][1]=='P') ||
394 ((argv[i][1]>='0') || (argv[i][1]<='9'))) &&
395 (strlen(argv[i]) == 2)))
396 {
397 FILE * fin;
398 int size_read;
399 const char* filenameinzip = argv[i];
400 const char *savefilenameinzip;
401 zip_fileinfo zi;
402 unsigned long crcFile=0;
403 int zip64 = 0;
404
405 zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
406 zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
407 zi.dosDate = 0;
408 zi.internal_fa = 0;
409 zi.external_fa = 0;
410 filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
411
412 /*
413 err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
414 NULL,0,NULL,0,NULL / * comment * /,
415 (opt_compress_level != 0) ? Z_DEFLATED : 0,
416 opt_compress_level);
417 */
418 if ((password != NULL) && (err==ZIP_OK))
419 err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
420
421 zip64 = isLargeFile(filenameinzip);
422
423 /* The path name saved, should not include a leading slash. */
424 /*if it did, windows/xp and dynazip couldn't read the zip file. */
425 savefilenameinzip = filenameinzip;
426 while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' )
427 {
428 savefilenameinzip++;
429 }
430
431 /*should the zip file contain any path at all?*/
432 if( opt_exclude_path )
433 {
434 const char *tmpptr;
435 const char *lastslash = 0;
436 for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++)
437 {
438 if( *tmpptr == '\\' || *tmpptr == '/')
439 {
440 lastslash = tmpptr;
441 }
442 }
443 if( lastslash != NULL )
444 {
445 savefilenameinzip = lastslash+1; // base filename follows last slash.
446 }
447 }
448
449 /**/
450 err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi,
451 NULL,0,NULL,0,NULL /* comment*/,
452 (opt_compress_level != 0) ? Z_DEFLATED : 0,
453 opt_compress_level,0,
454 /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
455 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
456 password,crcFile, zip64);
457
458 if (err != ZIP_OK)
459 printf("error in opening %s in zipfile\n",filenameinzip);
460 else
461 {
462 fin = FOPEN_FUNC(filenameinzip,"rb");
463 if (fin==NULL)
464 {
465 err=ZIP_ERRNO;
466 printf("error in opening %s for reading\n",filenameinzip);
467 }
468 }
469
470 if (err == ZIP_OK)
471 do
472 {
473 err = ZIP_OK;
474 size_read = (int)fread(buf,1,size_buf,fin);
475 if (size_read < size_buf)
476 if (feof(fin)==0)
477 {
478 printf("error in reading %s\n",filenameinzip);
479 err = ZIP_ERRNO;
480 }
481
482 if (size_read>0)
483 {
484 err = zipWriteInFileInZip (zf,buf,size_read);
485 if (err<0)
486 {
487 printf("error in writing %s in the zipfile\n",
488 filenameinzip);
489 }
490
491 }
492 } while ((err == ZIP_OK) && (size_read>0));
493
494 if (fin)
495 fclose(fin);
496
497 if (err<0)
498 err=ZIP_ERRNO;
499 else
500 {
501 err = zipCloseFileInZip(zf);
502 if (err!=ZIP_OK)
503 printf("error in closing %s in the zipfile\n",
504 filenameinzip);
505 }
506 }
507 }
508 errclose = zipClose(zf,NULL);
509 if (errclose != ZIP_OK)
510 printf("error in closing %s\n",filename_try);
511 }
512 else
513 {
514 do_help();
515 }
516
517 free(buf);
518 return 0;
519 }
520