3 Version 1.01e, February 12th, 2005
5 Copyright (C) 1998-2005 Gilles Vollant
26 #define CASESENSITIVITY (0)
27 #define WRITEBUFFERSIZE (8192)
28 #define MAXFILENAME (256)
35 mini unzip, demo of unzip package
38 Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir]
40 list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT
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 */
49 void change_file_date(filename,dosdate,tmu_date)
56 FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
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);
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;
77 newdate.tm_year=tmu_date.tm_year ;
80 ut.actime=ut.modtime=mktime(&newdate);
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 */
98 ret = mkdir (dirname,0775);
109 int len = (int)strlen(newdir);
114 buffer = (char*)malloc(len+1);
115 strcpy(buffer,newdir);
117 if (buffer[len-1] == '/') {
118 buffer[len-1] = '\0';
120 if (mymkdir(buffer) == 0)
131 while(*p && *p != '\\' && *p != '/')
135 if ((mymkdir(buffer) == -1) && (errno == ENOENT))
137 printf("couldn't create directory %s\n",buffer);
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");
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" \
162 " -d directory to extract into\n" \
163 " -o overwrite files without prompting\n" \
164 " -p extract crypted file using password\n\n");
175 err = unzGetGlobalInfo (uf,&gi);
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++)
182 char filename_inzip[256];
183 unz_file_info file_info;
185 const char *string_method;
187 err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
190 printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
193 if (file_info.uncompressed_size>0)
194 ratio = (file_info.compressed_size*100)/file_info.uncompressed_size;
196 /* display a '*' if the file is crypted */
197 if ((file_info.flag & 1) != 0)
200 if (file_info.compression_method==0)
201 string_method="Stored";
203 if (file_info.compression_method==Z_DEFLATED)
205 uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
207 string_method="Defl:N";
209 string_method="Defl:X";
210 else if ((iLevel==2) || (iLevel==3))
211 string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
214 string_method="Unkn. ";
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,
219 file_info.compressed_size,
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)
228 err = unzGoToNextFile(uf);
231 printf("error %d with zipfile in unzGoToNextFile\n",err);
241 int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password)
243 const int* popt_extract_without_path;
245 const char* password;
247 char filename_inzip[256];
248 char* filename_withoutpath;
255 unz_file_info file_info;
257 err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
261 printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
265 size_buf = WRITEBUFFERSIZE;
266 buf = (void*)malloc(size_buf);
269 printf("Error allocating memory\n");
270 return UNZ_INTERNALERROR;
273 p = filename_withoutpath = filename_inzip;
276 if (((*p)=='/') || ((*p)=='\\'))
277 filename_withoutpath = p+1;
281 if ((*filename_withoutpath)=='\0')
283 if ((*popt_extract_without_path)==0)
285 printf("creating directory: %s\n",filename_inzip);
286 mymkdir(filename_inzip);
291 const char* write_filename;
294 if ((*popt_extract_without_path)==0)
295 write_filename = filename_inzip;
297 write_filename = filename_withoutpath;
299 err = unzOpenCurrentFilePassword(uf,password);
302 printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err);
305 if (((*popt_overwrite)==0) && (err==UNZ_OK))
309 ftestexist = fopen(write_filename,"rb");
310 if (ftestexist!=NULL)
318 printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
319 ret = scanf("%1s",answer);
325 if ((rep>='a') && (rep<='z'))
328 while ((rep!='Y') && (rep!='N') && (rep!='A'));
338 if ((skip==0) && (err==UNZ_OK))
340 fout=fopen(write_filename,"wb");
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))
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");
355 printf("error opening %s\n",write_filename);
361 printf(" extracting: %s\n",write_filename);
365 err = unzReadCurrentFile(uf,buf,size_buf);
368 printf("error %d with zipfile in unzReadCurrentFile\n",err);
372 if (fwrite(buf,err,1,fout)!=1)
374 printf("error in writing extracted file\n");
384 change_file_date(write_filename,file_info.dosDate,
390 err = unzCloseCurrentFile (uf);
393 printf("error %d with zipfile in unzCloseCurrentFile\n",err);
397 unzCloseCurrentFile(uf); /* don't lose the error */
405 int do_extract(uf,opt_extract_without_path,opt_overwrite,password)
407 int opt_extract_without_path;
409 const char* password;
416 err = unzGetGlobalInfo (uf,&gi);
418 printf("error %d with zipfile in unzGetGlobalInfo \n",err);
420 for (i=0;i<gi.number_entry;i++)
422 if (do_extract_currentfile(uf,&opt_extract_without_path,
427 if ((i+1)<gi.number_entry)
429 err = unzGoToNextFile(uf);
432 printf("error %d with zipfile in unzGoToNextFile\n",err);
441 int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,password)
443 const char* filename;
444 int opt_extract_without_path;
446 const char* password;
449 if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK)
451 printf("file %s not found in the zipfile\n",filename);
455 if (do_extract_currentfile(uf,&opt_extract_without_path,
468 const char *zipfilename=NULL;
469 const char *filename_to_extract=NULL;
470 const char *password=NULL;
471 char filename_try[MAXFILENAME+16] = "";
474 int opt_do_extract=1;
475 int opt_do_extract_withoutpath=0;
477 int opt_extractdir=0;
478 const char *dirname=NULL;
493 const char *p=argv[i]+1;
498 if ((c=='l') || (c=='L'))
500 if ((c=='v') || (c=='V'))
502 if ((c=='x') || (c=='X'))
504 if ((c=='e') || (c=='E'))
505 opt_do_extract = opt_do_extract_withoutpath = 1;
506 if ((c=='o') || (c=='O'))
508 if ((c=='d') || (c=='D'))
514 if (((c=='p') || (c=='P')) && (i+1<argc))
523 if (zipfilename == NULL)
524 zipfilename = argv[i];
525 else if ((filename_to_extract==NULL) && (!opt_extractdir))
526 filename_to_extract = argv[i] ;
531 if (zipfilename!=NULL)
534 # ifdef USEWIN32IOAPI
535 zlib_filefunc_def ffunc;
538 strncpy(filename_try, zipfilename,MAXFILENAME-1);
539 /* strncpy doesn't append the trailing NULL, if the string is too long. */
540 filename_try[ MAXFILENAME ] = '\0';
542 # ifdef USEWIN32IOAPI
543 fill_win32_filefunc(&ffunc);
544 uf = unzOpen2(zipfilename,&ffunc);
546 uf = unzOpen(zipfilename);
550 strcat(filename_try,".zip");
551 # ifdef USEWIN32IOAPI
552 uf = unzOpen2(filename_try,&ffunc);
554 uf = unzOpen(filename_try);
561 printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
564 printf("%s opened\n",filename_try);
568 else if (opt_do_extract==1)
570 if (opt_extractdir && chdir(dirname))
572 printf("Error changing into %s, aborting\n", dirname);
576 if (filename_to_extract == NULL)
577 return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite,password);
579 return do_extract_onefile(uf,filename_to_extract,
580 opt_do_extract_withoutpath,opt_overwrite,password);
582 unzCloseCurrentFile(uf);