source: trunk/minix/lib/zlib-1.2.3/contrib/minizip/miniunz.c@ 10

Last change on this file since 10 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a
File size: 15.0 KB
RevLine 
[9]1/*
2 miniunz.c
3 Version 1.01e, February 12th, 2005
4
5 Copyright (C) 1998-2005 Gilles Vollant
6*/
7
8
9#include <stdio.h>
10#include <stdlib.h>
11#include <string.h>
12#include <time.h>
13#include <errno.h>
14#include <fcntl.h>
15
16#ifdef unix
17# include <unistd.h>
18# include <utime.h>
19#else
20# include <direct.h>
21# include <io.h>
22#endif
23
24#include "unzip.h"
25
26#define CASESENSITIVITY (0)
27#define WRITEBUFFERSIZE (8192)
28#define MAXFILENAME (256)
29
30#ifdef WIN32
31#define USEWIN32IOAPI
32#include "iowin32.h"
33#endif
34/*
35 mini unzip, demo of unzip package
36
37 usage :
38 Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir]
39
40 list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT
41 if it exists
42*/
43
44
45/* change_file_date : change the date/time of a file
46 filename : the filename of the file where date/time must be modified
47 dosdate : the new date at the MSDos format (4 bytes)
48 tmu_date : the SAME new date at the tm_unz format */
49void change_file_date(filename,dosdate,tmu_date)
50 const char *filename;
51 uLong dosdate;
52 tm_unz tmu_date;
53{
54#ifdef WIN32
55 HANDLE hFile;
56 FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
57
58 hFile = CreateFile(filename,GENERIC_READ | GENERIC_WRITE,
59 0,NULL,OPEN_EXISTING,0,NULL);
60 GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite);
61 DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal);
62 LocalFileTimeToFileTime(&ftLocal,&ftm);
63 SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
64 CloseHandle(hFile);
65#else
66#ifdef unix
67 struct utimbuf ut;
68 struct tm newdate;
69 newdate.tm_sec = tmu_date.tm_sec;
70 newdate.tm_min=tmu_date.tm_min;
71 newdate.tm_hour=tmu_date.tm_hour;
72 newdate.tm_mday=tmu_date.tm_mday;
73 newdate.tm_mon=tmu_date.tm_mon;
74 if (tmu_date.tm_year > 1900)
75 newdate.tm_year=tmu_date.tm_year - 1900;
76 else
77 newdate.tm_year=tmu_date.tm_year ;
78 newdate.tm_isdst=-1;
79
80 ut.actime=ut.modtime=mktime(&newdate);
81 utime(filename,&ut);
82#endif
83#endif
84}
85
86
87/* mymkdir and change_file_date are not 100 % portable
88 As I don't know well Unix, I wait feedback for the unix portion */
89
90int mymkdir(dirname)
91 const char* dirname;
92{
93 int ret=0;
94#ifdef WIN32
95 ret = mkdir(dirname);
96#else
97#ifdef unix
98 ret = mkdir (dirname,0775);
99#endif
100#endif
101 return ret;
102}
103
104int makedir (newdir)
105 char *newdir;
106{
107 char *buffer ;
108 char *p;
109 int len = (int)strlen(newdir);
110
111 if (len <= 0)
112 return 0;
113
114 buffer = (char*)malloc(len+1);
115 strcpy(buffer,newdir);
116
117 if (buffer[len-1] == '/') {
118 buffer[len-1] = '\0';
119 }
120 if (mymkdir(buffer) == 0)
121 {
122 free(buffer);
123 return 1;
124 }
125
126 p = buffer+1;
127 while (1)
128 {
129 char hold;
130
131 while(*p && *p != '\\' && *p != '/')
132 p++;
133 hold = *p;
134 *p = 0;
135 if ((mymkdir(buffer) == -1) && (errno == ENOENT))
136 {
137 printf("couldn't create directory %s\n",buffer);
138 free(buffer);
139 return 0;
140 }
141 if (hold == 0)
142 break;
143 *p++ = hold;
144 }
145 free(buffer);
146 return 1;
147}
148
149void do_banner()
150{
151 printf("MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant\n");
152 printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
153}
154
155void do_help()
156{
157 printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \
158 " -e Extract without pathname (junk paths)\n" \
159 " -x Extract with pathname\n" \
160 " -v list files\n" \
161 " -l list files\n" \
162 " -d directory to extract into\n" \
163 " -o overwrite files without prompting\n" \
164 " -p extract crypted file using password\n\n");
165}
166
167
168int do_list(uf)
169 unzFile uf;
170{
171 uLong i;
172 unz_global_info gi;
173 int err;
174
175 err = unzGetGlobalInfo (uf,&gi);
176 if (err!=UNZ_OK)
177 printf("error %d with zipfile in unzGetGlobalInfo \n",err);
178 printf(" Length Method Size Ratio Date Time CRC-32 Name\n");
179 printf(" ------ ------ ---- ----- ---- ---- ------ ----\n");
180 for (i=0;i<gi.number_entry;i++)
181 {
182 char filename_inzip[256];
183 unz_file_info file_info;
184 uLong ratio=0;
185 const char *string_method;
186 char charCrypt=' ';
187 err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
188 if (err!=UNZ_OK)
189 {
190 printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
191 break;
192 }
193 if (file_info.uncompressed_size>0)
194 ratio = (file_info.compressed_size*100)/file_info.uncompressed_size;
195
196 /* display a '*' if the file is crypted */
197 if ((file_info.flag & 1) != 0)
198 charCrypt='*';
199
200 if (file_info.compression_method==0)
201 string_method="Stored";
202 else
203 if (file_info.compression_method==Z_DEFLATED)
204 {
205 uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
206 if (iLevel==0)
207 string_method="Defl:N";
208 else if (iLevel==1)
209 string_method="Defl:X";
210 else if ((iLevel==2) || (iLevel==3))
211 string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
212 }
213 else
214 string_method="Unkn. ";
215
216 printf("%7lu %6s%c%7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n",
217 file_info.uncompressed_size,string_method,
218 charCrypt,
219 file_info.compressed_size,
220 ratio,
221 (uLong)file_info.tmu_date.tm_mon + 1,
222 (uLong)file_info.tmu_date.tm_mday,
223 (uLong)file_info.tmu_date.tm_year % 100,
224 (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min,
225 (uLong)file_info.crc,filename_inzip);
226 if ((i+1)<gi.number_entry)
227 {
228 err = unzGoToNextFile(uf);
229 if (err!=UNZ_OK)
230 {
231 printf("error %d with zipfile in unzGoToNextFile\n",err);
232 break;
233 }
234 }
235 }
236
237 return 0;
238}
239
240
241int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password)
242 unzFile uf;
243 const int* popt_extract_without_path;
244 int* popt_overwrite;
245 const char* password;
246{
247 char filename_inzip[256];
248 char* filename_withoutpath;
249 char* p;
250 int err=UNZ_OK;
251 FILE *fout=NULL;
252 void* buf;
253 uInt size_buf;
254
255 unz_file_info file_info;
256 uLong ratio=0;
257 err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
258
259 if (err!=UNZ_OK)
260 {
261 printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
262 return err;
263 }
264
265 size_buf = WRITEBUFFERSIZE;
266 buf = (void*)malloc(size_buf);
267 if (buf==NULL)
268 {
269 printf("Error allocating memory\n");
270 return UNZ_INTERNALERROR;
271 }
272
273 p = filename_withoutpath = filename_inzip;
274 while ((*p) != '\0')
275 {
276 if (((*p)=='/') || ((*p)=='\\'))
277 filename_withoutpath = p+1;
278 p++;
279 }
280
281 if ((*filename_withoutpath)=='\0')
282 {
283 if ((*popt_extract_without_path)==0)
284 {
285 printf("creating directory: %s\n",filename_inzip);
286 mymkdir(filename_inzip);
287 }
288 }
289 else
290 {
291 const char* write_filename;
292 int skip=0;
293
294 if ((*popt_extract_without_path)==0)
295 write_filename = filename_inzip;
296 else
297 write_filename = filename_withoutpath;
298
299 err = unzOpenCurrentFilePassword(uf,password);
300 if (err!=UNZ_OK)
301 {
302 printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err);
303 }
304
305 if (((*popt_overwrite)==0) && (err==UNZ_OK))
306 {
307 char rep=0;
308 FILE* ftestexist;
309 ftestexist = fopen(write_filename,"rb");
310 if (ftestexist!=NULL)
311 {
312 fclose(ftestexist);
313 do
314 {
315 char answer[128];
316 int ret;
317
318 printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
319 ret = scanf("%1s",answer);
320 if (ret != 1)
321 {
322 exit(EXIT_FAILURE);
323 }
324 rep = answer[0] ;
325 if ((rep>='a') && (rep<='z'))
326 rep -= 0x20;
327 }
328 while ((rep!='Y') && (rep!='N') && (rep!='A'));
329 }
330
331 if (rep == 'N')
332 skip = 1;
333
334 if (rep == 'A')
335 *popt_overwrite=1;
336 }
337
338 if ((skip==0) && (err==UNZ_OK))
339 {
340 fout=fopen(write_filename,"wb");
341
342 /* some zipfile don't contain directory alone before file */
343 if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
344 (filename_withoutpath!=(char*)filename_inzip))
345 {
346 char c=*(filename_withoutpath-1);
347 *(filename_withoutpath-1)='\0';
348 makedir(write_filename);
349 *(filename_withoutpath-1)=c;
350 fout=fopen(write_filename,"wb");
351 }
352
353 if (fout==NULL)
354 {
355 printf("error opening %s\n",write_filename);
356 }
357 }
358
359 if (fout!=NULL)
360 {
361 printf(" extracting: %s\n",write_filename);
362
363 do
364 {
365 err = unzReadCurrentFile(uf,buf,size_buf);
366 if (err<0)
367 {
368 printf("error %d with zipfile in unzReadCurrentFile\n",err);
369 break;
370 }
371 if (err>0)
372 if (fwrite(buf,err,1,fout)!=1)
373 {
374 printf("error in writing extracted file\n");
375 err=UNZ_ERRNO;
376 break;
377 }
378 }
379 while (err>0);
380 if (fout)
381 fclose(fout);
382
383 if (err==0)
384 change_file_date(write_filename,file_info.dosDate,
385 file_info.tmu_date);
386 }
387
388 if (err==UNZ_OK)
389 {
390 err = unzCloseCurrentFile (uf);
391 if (err!=UNZ_OK)
392 {
393 printf("error %d with zipfile in unzCloseCurrentFile\n",err);
394 }
395 }
396 else
397 unzCloseCurrentFile(uf); /* don't lose the error */
398 }
399
400 free(buf);
401 return err;
402}
403
404
405int do_extract(uf,opt_extract_without_path,opt_overwrite,password)
406 unzFile uf;
407 int opt_extract_without_path;
408 int opt_overwrite;
409 const char* password;
410{
411 uLong i;
412 unz_global_info gi;
413 int err;
414 FILE* fout=NULL;
415
416 err = unzGetGlobalInfo (uf,&gi);
417 if (err!=UNZ_OK)
418 printf("error %d with zipfile in unzGetGlobalInfo \n",err);
419
420 for (i=0;i<gi.number_entry;i++)
421 {
422 if (do_extract_currentfile(uf,&opt_extract_without_path,
423 &opt_overwrite,
424 password) != UNZ_OK)
425 break;
426
427 if ((i+1)<gi.number_entry)
428 {
429 err = unzGoToNextFile(uf);
430 if (err!=UNZ_OK)
431 {
432 printf("error %d with zipfile in unzGoToNextFile\n",err);
433 break;
434 }
435 }
436 }
437
438 return 0;
439}
440
441int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,password)
442 unzFile uf;
443 const char* filename;
444 int opt_extract_without_path;
445 int opt_overwrite;
446 const char* password;
447{
448 int err = UNZ_OK;
449 if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK)
450 {
451 printf("file %s not found in the zipfile\n",filename);
452 return 2;
453 }
454
455 if (do_extract_currentfile(uf,&opt_extract_without_path,
456 &opt_overwrite,
457 password) == UNZ_OK)
458 return 0;
459 else
460 return 1;
461}
462
463
464int main(argc,argv)
465 int argc;
466 char *argv[];
467{
468 const char *zipfilename=NULL;
469 const char *filename_to_extract=NULL;
470 const char *password=NULL;
471 char filename_try[MAXFILENAME+16] = "";
472 int i;
473 int opt_do_list=0;
474 int opt_do_extract=1;
475 int opt_do_extract_withoutpath=0;
476 int opt_overwrite=0;
477 int opt_extractdir=0;
478 const char *dirname=NULL;
479 unzFile uf=NULL;
480
481 do_banner();
482 if (argc==1)
483 {
484 do_help();
485 return 0;
486 }
487 else
488 {
489 for (i=1;i<argc;i++)
490 {
491 if ((*argv[i])=='-')
492 {
493 const char *p=argv[i]+1;
494
495 while ((*p)!='\0')
496 {
497 char c=*(p++);;
498 if ((c=='l') || (c=='L'))
499 opt_do_list = 1;
500 if ((c=='v') || (c=='V'))
501 opt_do_list = 1;
502 if ((c=='x') || (c=='X'))
503 opt_do_extract = 1;
504 if ((c=='e') || (c=='E'))
505 opt_do_extract = opt_do_extract_withoutpath = 1;
506 if ((c=='o') || (c=='O'))
507 opt_overwrite=1;
508 if ((c=='d') || (c=='D'))
509 {
510 opt_extractdir=1;
511 dirname=argv[i+1];
512 }
513
514 if (((c=='p') || (c=='P')) && (i+1<argc))
515 {
516 password=argv[i+1];
517 i++;
518 }
519 }
520 }
521 else
522 {
523 if (zipfilename == NULL)
524 zipfilename = argv[i];
525 else if ((filename_to_extract==NULL) && (!opt_extractdir))
526 filename_to_extract = argv[i] ;
527 }
528 }
529 }
530
531 if (zipfilename!=NULL)
532 {
533
534# ifdef USEWIN32IOAPI
535 zlib_filefunc_def ffunc;
536# endif
537
538 strncpy(filename_try, zipfilename,MAXFILENAME-1);
539 /* strncpy doesnt append the trailing NULL, of the string is too long. */
540 filename_try[ MAXFILENAME ] = '\0';
541
542# ifdef USEWIN32IOAPI
543 fill_win32_filefunc(&ffunc);
544 uf = unzOpen2(zipfilename,&ffunc);
545# else
546 uf = unzOpen(zipfilename);
547# endif
548 if (uf==NULL)
549 {
550 strcat(filename_try,".zip");
551# ifdef USEWIN32IOAPI
552 uf = unzOpen2(filename_try,&ffunc);
553# else
554 uf = unzOpen(filename_try);
555# endif
556 }
557 }
558
559 if (uf==NULL)
560 {
561 printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
562 return 1;
563 }
564 printf("%s opened\n",filename_try);
565
566 if (opt_do_list==1)
567 return do_list(uf);
568 else if (opt_do_extract==1)
569 {
570 if (opt_extractdir && chdir(dirname))
571 {
572 printf("Error changing into %s, aborting\n", dirname);
573 exit(-1);
574 }
575
576 if (filename_to_extract == NULL)
577 return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite,password);
578 else
579 return do_extract_onefile(uf,filename_to_extract,
580 opt_do_extract_withoutpath,opt_overwrite,password);
581 }
582 unzCloseCurrentFile(uf);
583
584 return 0;
585}
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