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(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64) || 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
73 /* f: name of file to get info on, tmzip: return value: access,
74 modification and creation times, dt: dostime */
filetime(const char * f,tm_zip * tmzip,uLong * dt)75 static int filetime(const char *f, tm_zip *tmzip, uLong *dt) {
76 int ret = 0;
77 {
78 FILETIME ftLocal;
79 HANDLE hFind;
80 WIN32_FIND_DATAA ff32;
81
82 hFind = FindFirstFileA(f,&ff32);
83 if (hFind != INVALID_HANDLE_VALUE)
84 {
85 FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
86 FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0);
87 FindClose(hFind);
88 ret = 1;
89 }
90 }
91 return ret;
92 }
93 #else
94 #if defined(unix) || defined(__APPLE__) || defined(__Fuchsia__) || defined(__ANDROID_API__)
95 /* f: name of file to get info on, tmzip: return value: access,
96 modification and creation times, dt: dostime */
filetime(const char * f,tm_zip * tmzip,uLong * dt)97 static int filetime(const char *f, tm_zip *tmzip, uLong *dt) {
98 (void)dt;
99 int ret=0;
100 struct stat s; /* results of stat() */
101 struct tm* filedate;
102 time_t tm_t=0;
103
104 if (strcmp(f,"-")!=0)
105 {
106 char name[MAXFILENAME+1];
107 size_t len = strlen(f);
108 if (len > MAXFILENAME)
109 len = MAXFILENAME;
110
111 strncpy(name, f,MAXFILENAME-1);
112 /* strncpy doesn't append the trailing NULL, of the string is too long. */
113 name[ MAXFILENAME ] = '\0';
114
115 if (name[len - 1] == '/')
116 name[len - 1] = '\0';
117 /* not all systems allow stat'ing a file with / appended */
118 if (stat(name,&s)==0)
119 {
120 tm_t = s.st_mtime;
121 ret = 1;
122 }
123 }
124 filedate = localtime(&tm_t);
125
126 tmzip->tm_sec = filedate->tm_sec;
127 tmzip->tm_min = filedate->tm_min;
128 tmzip->tm_hour = filedate->tm_hour;
129 tmzip->tm_mday = filedate->tm_mday;
130 tmzip->tm_mon = filedate->tm_mon ;
131 tmzip->tm_year = filedate->tm_year;
132
133 return ret;
134 }
135 #else
136 /* f: name of file to get info on, tmzip: return value: access,
137 modification and creation times, dt: dostime */
filetime(const char * f,tm_zip * tmzip,uLong * dt)138 static int filetime(const char *f, tm_zip *tmzip, uLong *dt) {
139 (void)f;
140 (void)tmzip;
141 (void)dt;
142 return 0;
143 }
144 #endif
145 #endif
146
147
148
149
check_exist_file(const char * filename)150 static int check_exist_file(const char* filename) {
151 FILE* ftestexist;
152 int ret = 1;
153 ftestexist = FOPEN_FUNC(filename,"rb");
154 if (ftestexist==NULL)
155 ret = 0;
156 else
157 fclose(ftestexist);
158 return ret;
159 }
160
do_banner(void)161 static void do_banner(void) {
162 printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n");
163 printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n");
164 }
165
do_help(void)166 static void do_help(void) {
167 printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \
168 " -o Overwrite existing file.zip\n" \
169 " -a Append to existing file.zip\n" \
170 " -0 Store only\n" \
171 " -1 Compress faster\n" \
172 " -9 Compress better\n\n" \
173 " -j exclude path. store only the file name.\n\n");
174 }
175
176 /* calculate the CRC32 of a file,
177 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)178 static int getFileCrc(const char* filenameinzip, void* buf, unsigned long size_buf, unsigned long* result_crc) {
179 unsigned long calculate_crc=0;
180 int err=ZIP_OK;
181 FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
182
183 unsigned long size_read = 0;
184 /* unsigned long total_read = 0; */
185 if (fin==NULL)
186 {
187 err = ZIP_ERRNO;
188 }
189
190 if (err == ZIP_OK)
191 do
192 {
193 err = ZIP_OK;
194 size_read = fread(buf,1,size_buf,fin);
195 if (size_read < size_buf)
196 if (feof(fin)==0)
197 {
198 printf("error in reading %s\n",filenameinzip);
199 err = ZIP_ERRNO;
200 }
201
202 if (size_read>0)
203 calculate_crc = crc32_z(calculate_crc,buf,size_read);
204 /* total_read += size_read; */
205
206 } while ((err == ZIP_OK) && (size_read>0));
207
208 if (fin)
209 fclose(fin);
210
211 *result_crc=calculate_crc;
212 printf("file %s crc %lx\n", filenameinzip, calculate_crc);
213 return err;
214 }
215
isLargeFile(const char * filename)216 static int isLargeFile(const char* filename) {
217 int largeFile = 0;
218 ZPOS64_T pos = 0;
219 FILE* pFile = FOPEN_FUNC(filename, "rb");
220
221 if(pFile != NULL)
222 {
223 FSEEKO_FUNC(pFile, 0, SEEK_END);
224 pos = (ZPOS64_T)FTELLO_FUNC(pFile);
225
226 printf("File : %s is %llu bytes\n", filename, pos);
227
228 if(pos >= 0xffffffff)
229 largeFile = 1;
230
231 fclose(pFile);
232 }
233
234 return largeFile;
235 }
236
main(int argc,char * argv[])237 int main(int argc, char *argv[]) {
238 int i;
239 int opt_overwrite=0;
240 int opt_compress_level=Z_DEFAULT_COMPRESSION;
241 int opt_exclude_path=0;
242 int zipfilenamearg = 0;
243 char filename_try[MAXFILENAME+16];
244 int zipok;
245 int err=0;
246 size_t size_buf=0;
247 void* buf=NULL;
248 const char* password=NULL;
249
250
251 do_banner();
252 if (argc==1)
253 {
254 do_help();
255 return 0;
256 }
257 else
258 {
259 for (i=1;i<argc;i++)
260 {
261 if ((*argv[i])=='-')
262 {
263 const char *p=argv[i]+1;
264
265 while ((*p)!='\0')
266 {
267 char c=*(p++);
268 if ((c=='o') || (c=='O'))
269 opt_overwrite = 1;
270 if ((c=='a') || (c=='A'))
271 opt_overwrite = 2;
272 if ((c>='0') && (c<='9'))
273 opt_compress_level = c-'0';
274 if ((c=='j') || (c=='J'))
275 opt_exclude_path = 1;
276
277 if (((c=='p') || (c=='P')) && (i+1<argc))
278 {
279 password=argv[i+1];
280 i++;
281 }
282 }
283 }
284 else
285 {
286 if (zipfilenamearg == 0)
287 {
288 zipfilenamearg = i ;
289 }
290 }
291 }
292 }
293
294 size_buf = WRITEBUFFERSIZE;
295 buf = (void*)malloc(size_buf);
296 if (buf==NULL)
297 {
298 printf("Error allocating memory\n");
299 return ZIP_INTERNALERROR;
300 }
301
302 if (zipfilenamearg==0)
303 {
304 zipok=0;
305 }
306 else
307 {
308 int i,len;
309 int dot_found=0;
310
311 zipok = 1 ;
312 strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
313 /* strncpy doesn't append the trailing NULL, of the string is too long. */
314 filename_try[ MAXFILENAME ] = '\0';
315
316 len=(int)strlen(filename_try);
317 for (i=0;i<len;i++)
318 if (filename_try[i]=='.')
319 dot_found=1;
320
321 if (dot_found==0)
322 strcat(filename_try,".zip");
323
324 if (opt_overwrite==2)
325 {
326 /* if the file don't exist, we not append file */
327 if (check_exist_file(filename_try)==0)
328 opt_overwrite=1;
329 }
330 else
331 if (opt_overwrite==0)
332 if (check_exist_file(filename_try)!=0)
333 {
334 char rep=0;
335 do
336 {
337 char answer[128];
338 int ret;
339 printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
340 ret = scanf("%1s",answer);
341 if (ret != 1)
342 {
343 exit(EXIT_FAILURE);
344 }
345 rep = answer[0] ;
346 if ((rep>='a') && (rep<='z'))
347 rep -= 0x20;
348 }
349 while ((rep!='Y') && (rep!='N') && (rep!='A'));
350 if (rep=='N')
351 zipok = 0;
352 if (rep=='A')
353 opt_overwrite = 2;
354 }
355 }
356
357 if (zipok==1)
358 {
359 zipFile zf;
360 int errclose;
361 # ifdef USEWIN32IOAPI
362 zlib_filefunc64_def ffunc;
363 fill_win32_filefunc64A(&ffunc);
364 zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
365 # else
366 zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0);
367 # endif
368
369 if (zf == NULL)
370 {
371 printf("error opening %s\n",filename_try);
372 err= ZIP_ERRNO;
373 }
374 else
375 printf("creating %s\n",filename_try);
376
377 for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
378 {
379 if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) &&
380 ((argv[i][1]=='o') || (argv[i][1]=='O') ||
381 (argv[i][1]=='a') || (argv[i][1]=='A') ||
382 (argv[i][1]=='p') || (argv[i][1]=='P') ||
383 ((argv[i][1]>='0') && (argv[i][1]<='9'))) &&
384 (strlen(argv[i]) == 2)))
385 {
386 FILE * fin = NULL;
387 size_t size_read;
388 const char* filenameinzip = argv[i];
389 const char *savefilenameinzip;
390 zip_fileinfo zi;
391 unsigned long crcFile=0;
392 int zip64 = 0;
393
394 zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
395 zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
396 zi.dosDate = 0;
397 zi.internal_fa = 0;
398 zi.external_fa = 0;
399 filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
400
401 /*
402 err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
403 NULL,0,NULL,0,NULL / * comment * /,
404 (opt_compress_level != 0) ? Z_DEFLATED : 0,
405 opt_compress_level);
406 */
407 if ((password != NULL) && (err==ZIP_OK))
408 err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
409
410 zip64 = isLargeFile(filenameinzip);
411
412 /* The path name saved, should not include a leading slash. */
413 /*if it did, windows/xp and dynazip couldn't read the zip file. */
414 savefilenameinzip = filenameinzip;
415 while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' )
416 {
417 savefilenameinzip++;
418 }
419
420 /*should the zip file contain any path at all?*/
421 if( opt_exclude_path )
422 {
423 const char *tmpptr;
424 const char *lastslash = 0;
425 for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++)
426 {
427 if( *tmpptr == '\\' || *tmpptr == '/')
428 {
429 lastslash = tmpptr;
430 }
431 }
432 if( lastslash != NULL )
433 {
434 savefilenameinzip = lastslash+1; // base filename follows last slash.
435 }
436 }
437
438 /**/
439 err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi,
440 NULL,0,NULL,0,NULL /* comment*/,
441 (opt_compress_level != 0) ? Z_DEFLATED : 0,
442 opt_compress_level,0,
443 /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
444 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
445 password,crcFile, zip64);
446
447 if (err != ZIP_OK)
448 printf("error in opening %s in zipfile\n",filenameinzip);
449 else
450 {
451 fin = FOPEN_FUNC(filenameinzip,"rb");
452 if (fin==NULL)
453 {
454 err=ZIP_ERRNO;
455 printf("error in opening %s for reading\n",filenameinzip);
456 }
457 }
458
459 if (err == ZIP_OK)
460 do
461 {
462 err = ZIP_OK;
463 size_read = fread(buf,1,size_buf,fin);
464 if (size_read < size_buf)
465 if (feof(fin)==0)
466 {
467 printf("error in reading %s\n",filenameinzip);
468 err = ZIP_ERRNO;
469 }
470
471 if (size_read>0)
472 {
473 err = zipWriteInFileInZip (zf,buf,(unsigned)size_read);
474 if (err<0)
475 {
476 printf("error in writing %s in the zipfile\n",
477 filenameinzip);
478 }
479
480 }
481 } while ((err == ZIP_OK) && (size_read>0));
482
483 if (fin)
484 fclose(fin);
485
486 if (err<0)
487 err=ZIP_ERRNO;
488 else
489 {
490 err = zipCloseFileInZip(zf);
491 if (err!=ZIP_OK)
492 printf("error in closing %s in the zipfile\n",
493 filenameinzip);
494 }
495 }
496 }
497 errclose = zipClose(zf,NULL);
498 if (errclose != ZIP_OK)
499 printf("error in closing %s\n",filename_try);
500 }
501 else
502 {
503 do_help();
504 }
505
506 free(buf);
507 return 0;
508 }
509