9e052883 |
1 | /* |
2 | miniunz.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__)) |
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 | #ifdef __APPLE__ |
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 | #include <stdio.h> |
43 | #include <stdlib.h> |
44 | #include <string.h> |
45 | #include <time.h> |
46 | #include <errno.h> |
47 | #include <fcntl.h> |
48 | #include <sys/stat.h> |
49 | |
50 | #ifdef _WIN32 |
51 | # include <direct.h> |
52 | # include <io.h> |
53 | #else |
54 | # include <unistd.h> |
55 | # include <utime.h> |
56 | #endif |
57 | |
58 | |
59 | #include "unzip.h" |
60 | |
61 | #define CASESENSITIVITY (0) |
62 | #define WRITEBUFFERSIZE (8192) |
63 | #define MAXFILENAME (256) |
64 | |
65 | #ifdef _WIN32 |
66 | #define USEWIN32IOAPI |
67 | #include "iowin32.h" |
68 | #endif |
69 | /* |
70 | mini unzip, demo of unzip package |
71 | |
72 | usage : |
73 | Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir] |
74 | |
75 | list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT |
76 | if it exists |
77 | */ |
78 | |
79 | |
80 | /* change_file_date : change the date/time of a file |
81 | filename : the filename of the file where date/time must be modified |
82 | dosdate : the new date at the MSDos format (4 bytes) |
83 | tmu_date : the SAME new date at the tm_unz format */ |
84 | static void change_file_date(filename,dosdate,tmu_date) |
85 | const char *filename; |
86 | uLong dosdate; |
87 | tm_unz tmu_date; |
88 | { |
89 | #ifdef _WIN32 |
90 | HANDLE hFile; |
91 | FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite; |
92 | |
93 | hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE, |
94 | 0,NULL,OPEN_EXISTING,0,NULL); |
95 | GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite); |
96 | DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal); |
97 | LocalFileTimeToFileTime(&ftLocal,&ftm); |
98 | SetFileTime(hFile,&ftm,&ftLastAcc,&ftm); |
99 | CloseHandle(hFile); |
100 | #else |
101 | #if defined(unix) || defined(__APPLE__) |
102 | (void)dosdate; |
103 | struct utimbuf ut; |
104 | struct tm newdate; |
105 | newdate.tm_sec = tmu_date.tm_sec; |
106 | newdate.tm_min=tmu_date.tm_min; |
107 | newdate.tm_hour=tmu_date.tm_hour; |
108 | newdate.tm_mday=tmu_date.tm_mday; |
109 | newdate.tm_mon=tmu_date.tm_mon; |
110 | if (tmu_date.tm_year > 1900) |
111 | newdate.tm_year=tmu_date.tm_year - 1900; |
112 | else |
113 | newdate.tm_year=tmu_date.tm_year ; |
114 | newdate.tm_isdst=-1; |
115 | |
116 | ut.actime=ut.modtime=mktime(&newdate); |
117 | utime(filename,&ut); |
118 | #endif |
119 | #endif |
120 | } |
121 | |
122 | |
123 | /* mymkdir and change_file_date are not 100 % portable |
124 | As I don't know well Unix, I wait feedback for the unix portion */ |
125 | |
126 | static int mymkdir(dirname) |
127 | const char* dirname; |
128 | { |
129 | int ret=0; |
130 | #ifdef _WIN32 |
131 | ret = _mkdir(dirname); |
132 | #elif unix |
133 | ret = mkdir (dirname,0775); |
134 | #elif __APPLE__ |
135 | ret = mkdir (dirname,0775); |
136 | #endif |
137 | return ret; |
138 | } |
139 | |
140 | static int makedir (newdir) |
141 | const char *newdir; |
142 | { |
143 | char *buffer ; |
144 | char *p; |
145 | size_t len = strlen(newdir); |
146 | |
147 | if (len == 0) |
148 | return 0; |
149 | |
150 | buffer = (char*)malloc(len+1); |
151 | if (buffer==NULL) |
152 | { |
153 | printf("Error allocating memory\n"); |
154 | return UNZ_INTERNALERROR; |
155 | } |
156 | strcpy(buffer,newdir); |
157 | |
158 | if (buffer[len-1] == '/') { |
159 | buffer[len-1] = '\0'; |
160 | } |
161 | if (mymkdir(buffer) == 0) |
162 | { |
163 | free(buffer); |
164 | return 1; |
165 | } |
166 | |
167 | p = buffer+1; |
168 | while (1) |
169 | { |
170 | char hold; |
171 | |
172 | while(*p && *p != '\\' && *p != '/') |
173 | p++; |
174 | hold = *p; |
175 | *p = 0; |
176 | if ((mymkdir(buffer) == -1) && (errno == ENOENT)) |
177 | { |
178 | printf("couldn't create directory %s\n",buffer); |
179 | free(buffer); |
180 | return 0; |
181 | } |
182 | if (hold == 0) |
183 | break; |
184 | *p++ = hold; |
185 | } |
186 | free(buffer); |
187 | return 1; |
188 | } |
189 | |
190 | static void do_banner() |
191 | { |
192 | printf("MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant\n"); |
193 | printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n"); |
194 | } |
195 | |
196 | static void do_help() |
197 | { |
198 | printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \ |
199 | " -e Extract without pathname (junk paths)\n" \ |
200 | " -x Extract with pathname\n" \ |
201 | " -v list files\n" \ |
202 | " -l list files\n" \ |
203 | " -d directory to extract into\n" \ |
204 | " -o overwrite files without prompting\n" \ |
205 | " -p extract crypted file using password\n\n"); |
206 | } |
207 | |
208 | static void Display64BitsSize(ZPOS64_T n, int size_char) |
209 | { |
210 | /* to avoid compatibility problem , we do here the conversion */ |
211 | char number[21]; |
212 | int offset=19; |
213 | int pos_string = 19; |
214 | number[20]=0; |
215 | for (;;) { |
216 | number[offset]=(char)((n%10)+'0'); |
217 | if (number[offset] != '0') |
218 | pos_string=offset; |
219 | n/=10; |
220 | if (offset==0) |
221 | break; |
222 | offset--; |
223 | } |
224 | { |
225 | int size_display_string = 19-pos_string; |
226 | while (size_char > size_display_string) |
227 | { |
228 | size_char--; |
229 | printf(" "); |
230 | } |
231 | } |
232 | |
233 | printf("%s",&number[pos_string]); |
234 | } |
235 | |
236 | static int do_list(uf) |
237 | unzFile uf; |
238 | { |
239 | uLong i; |
240 | unz_global_info64 gi; |
241 | int err; |
242 | |
243 | err = unzGetGlobalInfo64(uf,&gi); |
244 | if (err!=UNZ_OK) |
245 | printf("error %d with zipfile in unzGetGlobalInfo \n",err); |
246 | printf(" Length Method Size Ratio Date Time CRC-32 Name\n"); |
247 | printf(" ------ ------ ---- ----- ---- ---- ------ ----\n"); |
248 | for (i=0;i<gi.number_entry;i++) |
249 | { |
250 | char filename_inzip[256]; |
251 | unz_file_info64 file_info; |
252 | uLong ratio=0; |
253 | const char *string_method; |
254 | char charCrypt=' '; |
255 | err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0); |
256 | if (err!=UNZ_OK) |
257 | { |
258 | printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); |
259 | break; |
260 | } |
261 | if (file_info.uncompressed_size>0) |
262 | ratio = (uLong)((file_info.compressed_size*100)/file_info.uncompressed_size); |
263 | |
264 | /* display a '*' if the file is crypted */ |
265 | if ((file_info.flag & 1) != 0) |
266 | charCrypt='*'; |
267 | |
268 | if (file_info.compression_method==0) |
269 | string_method="Stored"; |
270 | else |
271 | if (file_info.compression_method==Z_DEFLATED) |
272 | { |
273 | uInt iLevel=(uInt)((file_info.flag & 0x6)/2); |
274 | if (iLevel==0) |
275 | string_method="Defl:N"; |
276 | else if (iLevel==1) |
277 | string_method="Defl:X"; |
278 | else if ((iLevel==2) || (iLevel==3)) |
279 | string_method="Defl:F"; /* 2:fast , 3 : extra fast*/ |
280 | } |
281 | else |
282 | if (file_info.compression_method==Z_BZIP2ED) |
283 | { |
284 | string_method="BZip2 "; |
285 | } |
286 | else |
287 | string_method="Unkn. "; |
288 | |
289 | Display64BitsSize(file_info.uncompressed_size,7); |
290 | printf(" %6s%c",string_method,charCrypt); |
291 | Display64BitsSize(file_info.compressed_size,7); |
292 | printf(" %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n", |
293 | ratio, |
294 | (uLong)file_info.tmu_date.tm_mon + 1, |
295 | (uLong)file_info.tmu_date.tm_mday, |
296 | (uLong)file_info.tmu_date.tm_year % 100, |
297 | (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min, |
298 | (uLong)file_info.crc,filename_inzip); |
299 | if ((i+1)<gi.number_entry) |
300 | { |
301 | err = unzGoToNextFile(uf); |
302 | if (err!=UNZ_OK) |
303 | { |
304 | printf("error %d with zipfile in unzGoToNextFile\n",err); |
305 | break; |
306 | } |
307 | } |
308 | } |
309 | |
310 | return 0; |
311 | } |
312 | |
313 | |
314 | static int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password) |
315 | unzFile uf; |
316 | const int* popt_extract_without_path; |
317 | int* popt_overwrite; |
318 | const char* password; |
319 | { |
320 | char filename_inzip[256]; |
321 | char* filename_withoutpath; |
322 | char* p; |
323 | int err=UNZ_OK; |
324 | FILE *fout=NULL; |
325 | void* buf; |
326 | uInt size_buf; |
327 | |
328 | unz_file_info64 file_info; |
329 | err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0); |
330 | |
331 | if (err!=UNZ_OK) |
332 | { |
333 | printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); |
334 | return err; |
335 | } |
336 | |
337 | size_buf = WRITEBUFFERSIZE; |
338 | buf = (void*)malloc(size_buf); |
339 | if (buf==NULL) |
340 | { |
341 | printf("Error allocating memory\n"); |
342 | return UNZ_INTERNALERROR; |
343 | } |
344 | |
345 | p = filename_withoutpath = filename_inzip; |
346 | while ((*p) != '\0') |
347 | { |
348 | if (((*p)=='/') || ((*p)=='\\')) |
349 | filename_withoutpath = p+1; |
350 | p++; |
351 | } |
352 | |
353 | if ((*filename_withoutpath)=='\0') |
354 | { |
355 | if ((*popt_extract_without_path)==0) |
356 | { |
357 | printf("creating directory: %s\n",filename_inzip); |
358 | mymkdir(filename_inzip); |
359 | } |
360 | } |
361 | else |
362 | { |
363 | const char* write_filename; |
364 | int skip=0; |
365 | |
366 | if ((*popt_extract_without_path)==0) |
367 | write_filename = filename_inzip; |
368 | else |
369 | write_filename = filename_withoutpath; |
370 | |
371 | err = unzOpenCurrentFilePassword(uf,password); |
372 | if (err!=UNZ_OK) |
373 | { |
374 | printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err); |
375 | } |
376 | |
377 | if (((*popt_overwrite)==0) && (err==UNZ_OK)) |
378 | { |
379 | char rep=0; |
380 | FILE* ftestexist; |
381 | ftestexist = FOPEN_FUNC(write_filename,"rb"); |
382 | if (ftestexist!=NULL) |
383 | { |
384 | fclose(ftestexist); |
385 | do |
386 | { |
387 | char answer[128]; |
388 | int ret; |
389 | |
390 | printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename); |
391 | ret = scanf("%1s",answer); |
392 | if (ret != 1) |
393 | { |
394 | exit(EXIT_FAILURE); |
395 | } |
396 | rep = answer[0] ; |
397 | if ((rep>='a') && (rep<='z')) |
398 | rep -= 0x20; |
399 | } |
400 | while ((rep!='Y') && (rep!='N') && (rep!='A')); |
401 | } |
402 | |
403 | if (rep == 'N') |
404 | skip = 1; |
405 | |
406 | if (rep == 'A') |
407 | *popt_overwrite=1; |
408 | } |
409 | |
410 | if ((skip==0) && (err==UNZ_OK)) |
411 | { |
412 | fout=FOPEN_FUNC(write_filename,"wb"); |
413 | /* some zipfile don't contain directory alone before file */ |
414 | if ((fout==NULL) && ((*popt_extract_without_path)==0) && |
415 | (filename_withoutpath!=(char*)filename_inzip)) |
416 | { |
417 | char c=*(filename_withoutpath-1); |
418 | *(filename_withoutpath-1)='\0'; |
419 | makedir(write_filename); |
420 | *(filename_withoutpath-1)=c; |
421 | fout=FOPEN_FUNC(write_filename,"wb"); |
422 | } |
423 | |
424 | if (fout==NULL) |
425 | { |
426 | printf("error opening %s\n",write_filename); |
427 | } |
428 | } |
429 | |
430 | if (fout!=NULL) |
431 | { |
432 | printf(" extracting: %s\n",write_filename); |
433 | |
434 | do |
435 | { |
436 | err = unzReadCurrentFile(uf,buf,size_buf); |
437 | if (err<0) |
438 | { |
439 | printf("error %d with zipfile in unzReadCurrentFile\n",err); |
440 | break; |
441 | } |
442 | if (err>0) |
443 | if (fwrite(buf,(unsigned)err,1,fout)!=1) |
444 | { |
445 | printf("error in writing extracted file\n"); |
446 | err=UNZ_ERRNO; |
447 | break; |
448 | } |
449 | } |
450 | while (err>0); |
451 | if (fout) |
452 | fclose(fout); |
453 | |
454 | if (err==0) |
455 | change_file_date(write_filename,file_info.dosDate, |
456 | file_info.tmu_date); |
457 | } |
458 | |
459 | if (err==UNZ_OK) |
460 | { |
461 | err = unzCloseCurrentFile (uf); |
462 | if (err!=UNZ_OK) |
463 | { |
464 | printf("error %d with zipfile in unzCloseCurrentFile\n",err); |
465 | } |
466 | } |
467 | else |
468 | unzCloseCurrentFile(uf); /* don't lose the error */ |
469 | } |
470 | |
471 | free(buf); |
472 | return err; |
473 | } |
474 | |
475 | |
476 | static int do_extract(uf,opt_extract_without_path,opt_overwrite,password) |
477 | unzFile uf; |
478 | int opt_extract_without_path; |
479 | int opt_overwrite; |
480 | const char* password; |
481 | { |
482 | uLong i; |
483 | unz_global_info64 gi; |
484 | int err; |
485 | |
486 | err = unzGetGlobalInfo64(uf,&gi); |
487 | if (err!=UNZ_OK) |
488 | printf("error %d with zipfile in unzGetGlobalInfo \n",err); |
489 | |
490 | for (i=0;i<gi.number_entry;i++) |
491 | { |
492 | if (do_extract_currentfile(uf,&opt_extract_without_path, |
493 | &opt_overwrite, |
494 | password) != UNZ_OK) |
495 | break; |
496 | |
497 | if ((i+1)<gi.number_entry) |
498 | { |
499 | err = unzGoToNextFile(uf); |
500 | if (err!=UNZ_OK) |
501 | { |
502 | printf("error %d with zipfile in unzGoToNextFile\n",err); |
503 | break; |
504 | } |
505 | } |
506 | } |
507 | |
508 | return 0; |
509 | } |
510 | |
511 | static int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,password) |
512 | unzFile uf; |
513 | const char* filename; |
514 | int opt_extract_without_path; |
515 | int opt_overwrite; |
516 | const char* password; |
517 | { |
518 | if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK) |
519 | { |
520 | printf("file %s not found in the zipfile\n",filename); |
521 | return 2; |
522 | } |
523 | |
524 | if (do_extract_currentfile(uf,&opt_extract_without_path, |
525 | &opt_overwrite, |
526 | password) == UNZ_OK) |
527 | return 0; |
528 | else |
529 | return 1; |
530 | } |
531 | |
532 | |
533 | int main(argc,argv) |
534 | int argc; |
535 | char *argv[]; |
536 | { |
537 | const char *zipfilename=NULL; |
538 | const char *filename_to_extract=NULL; |
539 | const char *password=NULL; |
540 | char filename_try[MAXFILENAME+16] = ""; |
541 | int i; |
542 | int ret_value=0; |
543 | int opt_do_list=0; |
544 | int opt_do_extract=1; |
545 | int opt_do_extract_withoutpath=0; |
546 | int opt_overwrite=0; |
547 | int opt_extractdir=0; |
548 | const char *dirname=NULL; |
549 | unzFile uf=NULL; |
550 | |
551 | do_banner(); |
552 | if (argc==1) |
553 | { |
554 | do_help(); |
555 | return 0; |
556 | } |
557 | else |
558 | { |
559 | for (i=1;i<argc;i++) |
560 | { |
561 | if ((*argv[i])=='-') |
562 | { |
563 | const char *p=argv[i]+1; |
564 | |
565 | while ((*p)!='\0') |
566 | { |
567 | char c=*(p++); |
568 | if ((c=='l') || (c=='L')) |
569 | opt_do_list = 1; |
570 | if ((c=='v') || (c=='V')) |
571 | opt_do_list = 1; |
572 | if ((c=='x') || (c=='X')) |
573 | opt_do_extract = 1; |
574 | if ((c=='e') || (c=='E')) |
575 | opt_do_extract = opt_do_extract_withoutpath = 1; |
576 | if ((c=='o') || (c=='O')) |
577 | opt_overwrite=1; |
578 | if ((c=='d') || (c=='D')) |
579 | { |
580 | opt_extractdir=1; |
581 | dirname=argv[i+1]; |
582 | } |
583 | |
584 | if (((c=='p') || (c=='P')) && (i+1<argc)) |
585 | { |
586 | password=argv[i+1]; |
587 | i++; |
588 | } |
589 | } |
590 | } |
591 | else |
592 | { |
593 | if (zipfilename == NULL) |
594 | zipfilename = argv[i]; |
595 | else if ((filename_to_extract==NULL) && (!opt_extractdir)) |
596 | filename_to_extract = argv[i] ; |
597 | } |
598 | } |
599 | } |
600 | |
601 | if (zipfilename!=NULL) |
602 | { |
603 | |
604 | # ifdef USEWIN32IOAPI |
605 | zlib_filefunc64_def ffunc; |
606 | # endif |
607 | |
608 | strncpy(filename_try, zipfilename,MAXFILENAME-1); |
609 | /* strncpy doesnt append the trailing NULL, of the string is too long. */ |
610 | filename_try[ MAXFILENAME ] = '\0'; |
611 | |
612 | # ifdef USEWIN32IOAPI |
613 | fill_win32_filefunc64A(&ffunc); |
614 | uf = unzOpen2_64(zipfilename,&ffunc); |
615 | # else |
616 | uf = unzOpen64(zipfilename); |
617 | # endif |
618 | if (uf==NULL) |
619 | { |
620 | strcat(filename_try,".zip"); |
621 | # ifdef USEWIN32IOAPI |
622 | uf = unzOpen2_64(filename_try,&ffunc); |
623 | # else |
624 | uf = unzOpen64(filename_try); |
625 | # endif |
626 | } |
627 | } |
628 | |
629 | if (uf==NULL) |
630 | { |
631 | printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename); |
632 | return 1; |
633 | } |
634 | printf("%s opened\n",filename_try); |
635 | |
636 | if (opt_do_list==1) |
637 | ret_value = do_list(uf); |
638 | else if (opt_do_extract==1) |
639 | { |
640 | #ifdef _WIN32 |
641 | if (opt_extractdir && _chdir(dirname)) |
642 | #else |
643 | if (opt_extractdir && chdir(dirname)) |
644 | #endif |
645 | { |
646 | printf("Error changing into %s, aborting\n", dirname); |
647 | exit(-1); |
648 | } |
649 | |
650 | if (filename_to_extract == NULL) |
651 | ret_value = do_extract(uf, opt_do_extract_withoutpath, opt_overwrite, password); |
652 | else |
653 | ret_value = do_extract_onefile(uf, filename_to_extract, opt_do_extract_withoutpath, opt_overwrite, password); |
654 | } |
655 | |
656 | unzClose(uf); |
657 | |
658 | return ret_value; |
659 | } |