3 Version 1.1, February 14h, 2010
4 sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
6 Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
8 Modifications of Unzip for Zip64
9 Copyright (C) 2007-2008 Even Rouault
11 Modifications for Zip64 support on both zip and unzip
12 Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
15 #if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
16 #ifndef __USE_FILE_OFFSET64
17 #define __USE_FILE_OFFSET64
19 #ifndef __USE_LARGEFILE64
20 #define __USE_LARGEFILE64
22 #ifndef _LARGEFILE64_SOURCE
23 #define _LARGEFILE64_SOURCE
25 #ifndef _FILE_OFFSET_BIT
26 #define _FILE_OFFSET_BIT 64
30 #if defined(__APPLE__) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
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)
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)
61 #define CASESENSITIVITY (0)
62 #define WRITEBUFFERSIZE (8192)
63 #define MAXFILENAME (256)
70 mini unzip, demo of unzip package
73 Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir]
75 list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT
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(const char *filename, uLong dosdate, tm_unz tmu_date) {
87 FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
89 hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE,
90 0,NULL,OPEN_EXISTING,0,NULL);
91 GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite);
92 DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal);
93 LocalFileTimeToFileTime(&ftLocal,&ftm);
94 SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
97 #if defined(unix) || defined(__APPLE__)
101 newdate.tm_sec = tmu_date.tm_sec;
102 newdate.tm_min=tmu_date.tm_min;
103 newdate.tm_hour=tmu_date.tm_hour;
104 newdate.tm_mday=tmu_date.tm_mday;
105 newdate.tm_mon=tmu_date.tm_mon;
106 if (tmu_date.tm_year > 1900)
107 newdate.tm_year=tmu_date.tm_year - 1900;
109 newdate.tm_year=tmu_date.tm_year ;
112 ut.actime=ut.modtime=mktime(&newdate);
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 */
126 static int mymkdir(const char* dirname) {
129 ret = _mkdir(dirname);
131 ret = mkdir (dirname,0775);
133 ret = mkdir (dirname,0775);
140 static int makedir(const char *newdir) {
143 size_t len = strlen(newdir);
148 buffer = (char*)malloc(len+1);
151 printf("Error allocating memory\n");
152 return UNZ_INTERNALERROR;
154 strcpy(buffer,newdir);
156 if (buffer[len-1] == '/') {
157 buffer[len-1] = '\0';
159 if (mymkdir(buffer) == 0)
170 while(*p && *p != '\\' && *p != '/')
174 if ((mymkdir(buffer) == -1) && (errno == ENOENT))
176 printf("couldn't create directory %s\n",buffer);
188 static void do_banner(void) {
189 printf("MiniUnz 1.1, demo of zLib + Unz package written by Gilles Vollant\n");
190 printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
193 static void do_help(void) {
194 printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \
195 " -e Extract without pathname (junk paths)\n" \
196 " -x Extract with pathname\n" \
199 " -d directory to extract into\n" \
200 " -o overwrite files without prompting\n" \
201 " -p extract encrypted file using password\n\n");
204 static void Display64BitsSize(ZPOS64_T n, int size_char) {
205 /* to avoid compatibility problem , we do here the conversion */
211 number[offset]=(char)((n%10)+'0');
212 if (number[offset] != '0')
220 int size_display_string = 19-pos_string;
221 while (size_char > size_display_string)
228 printf("%s",&number[pos_string]);
231 static int do_list(unzFile uf) {
233 unz_global_info64 gi;
236 err = unzGetGlobalInfo64(uf,&gi);
238 printf("error %d with zipfile in unzGetGlobalInfo \n",err);
239 printf(" Length Method Size Ratio Date Time CRC-32 Name\n");
240 printf(" ------ ------ ---- ----- ---- ---- ------ ----\n");
241 for (i=0;i<gi.number_entry;i++)
243 char filename_inzip[256];
244 unz_file_info64 file_info;
246 const char *string_method = "";
248 err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
251 printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
254 if (file_info.uncompressed_size>0)
255 ratio = (uLong)((file_info.compressed_size*100)/file_info.uncompressed_size);
257 /* display a '*' if the file is encrypted */
258 if ((file_info.flag & 1) != 0)
261 if (file_info.compression_method==0)
262 string_method="Stored";
264 if (file_info.compression_method==Z_DEFLATED)
266 uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
268 string_method="Defl:N";
270 string_method="Defl:X";
271 else if ((iLevel==2) || (iLevel==3))
272 string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
275 if (file_info.compression_method==Z_BZIP2ED)
277 string_method="BZip2 ";
280 string_method="Unkn. ";
282 Display64BitsSize(file_info.uncompressed_size,7);
283 printf(" %6s%c",string_method,charCrypt);
284 Display64BitsSize(file_info.compressed_size,7);
285 printf(" %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n",
287 (uLong)file_info.tmu_date.tm_mon + 1,
288 (uLong)file_info.tmu_date.tm_mday,
289 (uLong)file_info.tmu_date.tm_year % 100,
290 (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min,
291 (uLong)file_info.crc,filename_inzip);
292 if ((i+1)<gi.number_entry)
294 err = unzGoToNextFile(uf);
297 printf("error %d with zipfile in unzGoToNextFile\n",err);
307 static int do_extract_currentfile(unzFile uf, const int* popt_extract_without_path, int* popt_overwrite, const char* password) {
308 char filename_inzip[256];
309 char* filename_withoutpath;
316 unz_file_info64 file_info;
317 err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
321 printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
325 size_buf = WRITEBUFFERSIZE;
326 buf = (void*)malloc(size_buf);
329 printf("Error allocating memory\n");
330 return UNZ_INTERNALERROR;
333 p = filename_withoutpath = filename_inzip;
336 if (((*p)=='/') || ((*p)=='\\'))
337 filename_withoutpath = p+1;
341 if ((*filename_withoutpath)=='\0')
343 if ((*popt_extract_without_path)==0)
345 printf("creating directory: %s\n",filename_inzip);
346 mymkdir(filename_inzip);
351 const char* write_filename;
354 if ((*popt_extract_without_path)==0)
355 write_filename = filename_inzip;
357 write_filename = filename_withoutpath;
359 if (write_filename[0]!='\0')
361 const char* relative_check = write_filename;
362 while (relative_check[1]!='\0')
364 if (relative_check[0]=='.' && relative_check[1]=='.')
365 write_filename = relative_check;
370 while (write_filename[0]=='/' || write_filename[0]=='.')
373 err = unzOpenCurrentFilePassword(uf,password);
376 printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err);
379 if (((*popt_overwrite)==0) && (err==UNZ_OK))
383 ftestexist = FOPEN_FUNC(write_filename,"rb");
384 if (ftestexist!=NULL)
392 printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
393 ret = scanf("%1s",answer);
399 if ((rep>='a') && (rep<='z'))
402 while ((rep!='Y') && (rep!='N') && (rep!='A'));
412 if ((skip==0) && (err==UNZ_OK))
414 fout=FOPEN_FUNC(write_filename,"wb");
415 /* some zipfile don't contain directory alone before file */
416 if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
417 (filename_withoutpath!=(char*)filename_inzip))
419 char c=*(filename_withoutpath-1);
420 *(filename_withoutpath-1)='\0';
421 makedir(write_filename);
422 *(filename_withoutpath-1)=c;
423 fout=FOPEN_FUNC(write_filename,"wb");
428 printf("error opening %s\n",write_filename);
434 printf(" extracting: %s\n",write_filename);
438 err = unzReadCurrentFile(uf,buf,size_buf);
441 printf("error %d with zipfile in unzReadCurrentFile\n",err);
445 if (fwrite(buf,(unsigned)err,1,fout)!=1)
447 printf("error in writing extracted file\n");
457 change_file_date(write_filename,file_info.dosDate,
463 err = unzCloseCurrentFile (uf);
466 printf("error %d with zipfile in unzCloseCurrentFile\n",err);
470 unzCloseCurrentFile(uf); /* don't lose the error */
478 static int do_extract(unzFile uf, int opt_extract_without_path, int opt_overwrite, const char* password) {
480 unz_global_info64 gi;
483 err = unzGetGlobalInfo64(uf,&gi);
485 printf("error %d with zipfile in unzGetGlobalInfo \n",err);
487 for (i=0;i<gi.number_entry;i++)
489 if (do_extract_currentfile(uf,&opt_extract_without_path,
494 if ((i+1)<gi.number_entry)
496 err = unzGoToNextFile(uf);
499 printf("error %d with zipfile in unzGoToNextFile\n",err);
508 static int do_extract_onefile(unzFile uf, const char* filename, int opt_extract_without_path, int opt_overwrite, const char* password) {
509 if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK)
511 printf("file %s not found in the zipfile\n",filename);
515 if (do_extract_currentfile(uf,&opt_extract_without_path,
524 int main(int argc, char *argv[]) {
525 const char *zipfilename=NULL;
526 const char *filename_to_extract=NULL;
527 const char *password=NULL;
528 char filename_try[MAXFILENAME+16] = "";
532 int opt_do_extract=1;
533 int opt_do_extract_withoutpath=0;
535 int opt_extractdir=0;
536 const char *dirname=NULL;
551 const char *p=argv[i]+1;
556 if ((c=='l') || (c=='L'))
558 if ((c=='v') || (c=='V'))
560 if ((c=='x') || (c=='X'))
562 if ((c=='e') || (c=='E'))
563 opt_do_extract = opt_do_extract_withoutpath = 1;
564 if ((c=='o') || (c=='O'))
566 if ((c=='d') || (c=='D'))
572 if (((c=='p') || (c=='P')) && (i+1<argc))
581 if (zipfilename == NULL)
582 zipfilename = argv[i];
583 else if ((filename_to_extract==NULL) && (!opt_extractdir))
584 filename_to_extract = argv[i] ;
589 if (zipfilename!=NULL)
592 # ifdef USEWIN32IOAPI
593 zlib_filefunc64_def ffunc;
596 strncpy(filename_try, zipfilename,MAXFILENAME-1);
597 /* strncpy doesn't append the trailing NULL, of the string is too long. */
598 filename_try[ MAXFILENAME ] = '\0';
600 # ifdef USEWIN32IOAPI
601 fill_win32_filefunc64A(&ffunc);
602 uf = unzOpen2_64(zipfilename,&ffunc);
604 uf = unzOpen64(zipfilename);
608 strcat(filename_try,".zip");
609 # ifdef USEWIN32IOAPI
610 uf = unzOpen2_64(filename_try,&ffunc);
612 uf = unzOpen64(filename_try);
619 printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
622 printf("%s opened\n",filename_try);
625 ret_value = do_list(uf);
626 else if (opt_do_extract==1)
629 if (opt_extractdir && _chdir(dirname))
631 if (opt_extractdir && chdir(dirname))
634 printf("Error changing into %s, aborting\n", dirname);
638 if (filename_to_extract == NULL)
639 ret_value = do_extract(uf, opt_do_extract_withoutpath, opt_overwrite, password);
641 ret_value = do_extract_onefile(uf, filename_to_extract, opt_do_extract_withoutpath, opt_overwrite, password);