| /* |
| miniunz.c |
| Version 1.1, February 14h, 2010 |
| sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) |
| |
| Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) |
| |
| Modifications of Unzip for Zip64 |
| Copyright (C) 2007-2008 Even Rouault |
| |
| Modifications for Zip64 support on both zip and unzip |
| Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) |
| */ |
| |
| #ifndef _WIN32 |
| #ifndef __USE_FILE_OFFSET64 |
| #define __USE_FILE_OFFSET64 |
| #endif |
| #ifndef __USE_LARGEFILE64 |
| #define __USE_LARGEFILE64 |
| #endif |
| #ifndef _LARGEFILE64_SOURCE |
| #define _LARGEFILE64_SOURCE |
| #endif |
| #ifndef _FILE_OFFSET_BIT |
| #define _FILE_OFFSET_BIT 64 |
| #endif |
| #endif |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <time.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| |
| #ifdef unix |
| # include <unistd.h> |
| # include <utime.h> |
| #else |
| # include <direct.h> |
| # include <io.h> |
| #endif |
| |
| #include "unzip.h" |
| |
| #define CASESENSITIVITY (0) |
| #define WRITEBUFFERSIZE (8192) |
| #define MAXFILENAME (256) |
| |
| #ifdef _WIN32 |
| #define USEWIN32IOAPI |
| #include "iowin32.h" |
| #endif |
| /* |
| mini unzip, demo of unzip package |
| |
| usage : |
| Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir] |
| |
| list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT |
| if it exists |
| */ |
| |
| |
| /* change_file_date : change the date/time of a file |
| filename : the filename of the file where date/time must be modified |
| dosdate : the new date at the MSDos format (4 bytes) |
| tmu_date : the SAME new date at the tm_unz format */ |
| void change_file_date(filename,dosdate,tmu_date) |
| const char *filename; |
| uLong dosdate; |
| tm_unz tmu_date; |
| { |
| #ifdef _WIN32 |
| HANDLE hFile; |
| FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite; |
| |
| hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE, |
| 0,NULL,OPEN_EXISTING,0,NULL); |
| GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite); |
| DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal); |
| LocalFileTimeToFileTime(&ftLocal,&ftm); |
| SetFileTime(hFile,&ftm,&ftLastAcc,&ftm); |
| CloseHandle(hFile); |
| #else |
| #ifdef unix |
| struct utimbuf ut; |
| struct tm newdate; |
| newdate.tm_sec = tmu_date.tm_sec; |
| newdate.tm_min=tmu_date.tm_min; |
| newdate.tm_hour=tmu_date.tm_hour; |
| newdate.tm_mday=tmu_date.tm_mday; |
| newdate.tm_mon=tmu_date.tm_mon; |
| if (tmu_date.tm_year > 1900) |
| newdate.tm_year=tmu_date.tm_year - 1900; |
| else |
| newdate.tm_year=tmu_date.tm_year ; |
| newdate.tm_isdst=-1; |
| |
| ut.actime=ut.modtime=mktime(&newdate); |
| utime(filename,&ut); |
| #endif |
| #endif |
| } |
| |
| |
| /* mymkdir and change_file_date are not 100 % portable |
| As I don't know well Unix, I wait feedback for the unix portion */ |
| |
| int mymkdir(dirname) |
| const char* dirname; |
| { |
| int ret=0; |
| #ifdef _WIN32 |
| ret = _mkdir(dirname); |
| #else |
| #ifdef unix |
| ret = mkdir (dirname,0775); |
| #endif |
| #endif |
| return ret; |
| } |
| |
| int makedir (newdir) |
| char *newdir; |
| { |
| char *buffer ; |
| char *p; |
| int len = (int)strlen(newdir); |
| |
| if (len <= 0) |
| return 0; |
| |
| buffer = (char*)malloc(len+1); |
| if (buffer==NULL) |
| { |
| printf("Error allocating memory\n"); |
| return UNZ_INTERNALERROR; |
| } |
| strcpy(buffer,newdir); |
| |
| if (buffer[len-1] == '/') { |
| buffer[len-1] = '\0'; |
| } |
| if (mymkdir(buffer) == 0) |
| { |
| free(buffer); |
| return 1; |
| } |
| |
| p = buffer+1; |
| while (1) |
| { |
| char hold; |
| |
| while(*p && *p != '\\' && *p != '/') |
| p++; |
| hold = *p; |
| *p = 0; |
| if ((mymkdir(buffer) == -1) && (errno == ENOENT)) |
| { |
| printf("couldn't create directory %s\n",buffer); |
| free(buffer); |
| return 0; |
| } |
| if (hold == 0) |
| break; |
| *p++ = hold; |
| } |
| free(buffer); |
| return 1; |
| } |
| |
| void do_banner() |
| { |
| printf("MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant\n"); |
| printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n"); |
| } |
| |
| void do_help() |
| { |
| printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \ |
| " -e Extract without pathname (junk paths)\n" \ |
| " -x Extract with pathname\n" \ |
| " -v list files\n" \ |
| " -l list files\n" \ |
| " -d directory to extract into\n" \ |
| " -o overwrite files without prompting\n" \ |
| " -p extract crypted file using password\n\n"); |
| } |
| |
| void Display64BitsSize(ZPOS64_T n, int size_char) |
| { |
| /* to avoid compatibility problem , we do here the conversion */ |
| char number[21]; |
| int offset=19; |
| int pos_string = 19; |
| number[20]=0; |
| for (;;) { |
| number[offset]=(char)((n%10)+'0'); |
| if (number[offset] != '0') |
| pos_string=offset; |
| n/=10; |
| if (offset==0) |
| break; |
| offset--; |
| } |
| { |
| int size_display_string = 19-pos_string; |
| while (size_char > size_display_string) |
| { |
| size_char--; |
| printf(" "); |
| } |
| } |
| |
| printf("%s",&number[pos_string]); |
| } |
| |
| int do_list(uf) |
| unzFile uf; |
| { |
| uLong i; |
| unz_global_info64 gi; |
| int err; |
| |
| err = unzGetGlobalInfo64(uf,&gi); |
| if (err!=UNZ_OK) |
| printf("error %d with zipfile in unzGetGlobalInfo \n",err); |
| printf(" Length Method Size Ratio Date Time CRC-32 Name\n"); |
| printf(" ------ ------ ---- ----- ---- ---- ------ ----\n"); |
| for (i=0;i<gi.number_entry;i++) |
| { |
| char filename_inzip[256]; |
| unz_file_info64 file_info; |
| uLong ratio=0; |
| const char *string_method; |
| char charCrypt=' '; |
| err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0); |
| if (err!=UNZ_OK) |
| { |
| printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); |
| break; |
| } |
| if (file_info.uncompressed_size>0) |
| ratio = (uLong)((file_info.compressed_size*100)/file_info.uncompressed_size); |
| |
| /* display a '*' if the file is crypted */ |
| if ((file_info.flag & 1) != 0) |
| charCrypt='*'; |
| |
| if (file_info.compression_method==0) |
| string_method="Stored"; |
| else |
| if (file_info.compression_method==Z_DEFLATED) |
| { |
| uInt iLevel=(uInt)((file_info.flag & 0x6)/2); |
| if (iLevel==0) |
| string_method="Defl:N"; |
| else if (iLevel==1) |
| string_method="Defl:X"; |
| else if ((iLevel==2) || (iLevel==3)) |
| string_method="Defl:F"; /* 2:fast , 3 : extra fast*/ |
| } |
| else |
| if (file_info.compression_method==Z_BZIP2ED) |
| { |
| string_method="BZip2 "; |
| } |
| else |
| string_method="Unkn. "; |
| |
| Display64BitsSize(file_info.uncompressed_size,7); |
| printf(" %6s%c",string_method,charCrypt); |
| Display64BitsSize(file_info.compressed_size,7); |
| printf(" %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n", |
| ratio, |
| (uLong)file_info.tmu_date.tm_mon + 1, |
| (uLong)file_info.tmu_date.tm_mday, |
| (uLong)file_info.tmu_date.tm_year % 100, |
| (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min, |
| (uLong)file_info.crc,filename_inzip); |
| if ((i+1)<gi.number_entry) |
| { |
| err = unzGoToNextFile(uf); |
| if (err!=UNZ_OK) |
| { |
| printf("error %d with zipfile in unzGoToNextFile\n",err); |
| break; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password) |
| unzFile uf; |
| const int* popt_extract_without_path; |
| int* popt_overwrite; |
| const char* password; |
| { |
| char filename_inzip[256]; |
| char* filename_withoutpath; |
| char* p; |
| int err=UNZ_OK; |
| FILE *fout=NULL; |
| void* buf; |
| uInt size_buf; |
| |
| unz_file_info64 file_info; |
| uLong ratio=0; |
| err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0); |
| |
| if (err!=UNZ_OK) |
| { |
| printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); |
| return err; |
| } |
| |
| size_buf = WRITEBUFFERSIZE; |
| buf = (void*)malloc(size_buf); |
| if (buf==NULL) |
| { |
| printf("Error allocating memory\n"); |
| return UNZ_INTERNALERROR; |
| } |
| |
| p = filename_withoutpath = filename_inzip; |
| while ((*p) != '\0') |
| { |
| if (((*p)=='/') || ((*p)=='\\')) |
| filename_withoutpath = p+1; |
| p++; |
| } |
| |
| if ((*filename_withoutpath)=='\0') |
| { |
| if ((*popt_extract_without_path)==0) |
| { |
| printf("creating directory: %s\n",filename_inzip); |
| mymkdir(filename_inzip); |
| } |
| } |
| else |
| { |
| const char* write_filename; |
| int skip=0; |
| |
| if ((*popt_extract_without_path)==0) |
| write_filename = filename_inzip; |
| else |
| write_filename = filename_withoutpath; |
| |
| err = unzOpenCurrentFilePassword(uf,password); |
| if (err!=UNZ_OK) |
| { |
| printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err); |
| } |
| |
| if (((*popt_overwrite)==0) && (err==UNZ_OK)) |
| { |
| char rep=0; |
| FILE* ftestexist; |
| ftestexist = fopen64(write_filename,"rb"); |
| if (ftestexist!=NULL) |
| { |
| fclose(ftestexist); |
| do |
| { |
| char answer[128]; |
| int ret; |
| |
| printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename); |
| ret = scanf("%1s",answer); |
| if (ret != 1) |
| { |
| exit(EXIT_FAILURE); |
| } |
| rep = answer[0] ; |
| if ((rep>='a') && (rep<='z')) |
| rep -= 0x20; |
| } |
| while ((rep!='Y') && (rep!='N') && (rep!='A')); |
| } |
| |
| if (rep == 'N') |
| skip = 1; |
| |
| if (rep == 'A') |
| *popt_overwrite=1; |
| } |
| |
| if ((skip==0) && (err==UNZ_OK)) |
| { |
| fout=fopen64(write_filename,"wb"); |
| |
| /* some zipfile don't contain directory alone before file */ |
| if ((fout==NULL) && ((*popt_extract_without_path)==0) && |
| (filename_withoutpath!=(char*)filename_inzip)) |
| { |
| char c=*(filename_withoutpath-1); |
| *(filename_withoutpath-1)='\0'; |
| makedir(write_filename); |
| *(filename_withoutpath-1)=c; |
| fout=fopen64(write_filename,"wb"); |
| } |
| |
| if (fout==NULL) |
| { |
| printf("error opening %s\n",write_filename); |
| } |
| } |
| |
| if (fout!=NULL) |
| { |
| printf(" extracting: %s\n",write_filename); |
| |
| do |
| { |
| err = unzReadCurrentFile(uf,buf,size_buf); |
| if (err<0) |
| { |
| printf("error %d with zipfile in unzReadCurrentFile\n",err); |
| break; |
| } |
| if (err>0) |
| if (fwrite(buf,err,1,fout)!=1) |
| { |
| printf("error in writing extracted file\n"); |
| err=UNZ_ERRNO; |
| break; |
| } |
| } |
| while (err>0); |
| if (fout) |
| fclose(fout); |
| |
| if (err==0) |
| change_file_date(write_filename,file_info.dosDate, |
| file_info.tmu_date); |
| } |
| |
| if (err==UNZ_OK) |
| { |
| err = unzCloseCurrentFile (uf); |
| if (err!=UNZ_OK) |
| { |
| printf("error %d with zipfile in unzCloseCurrentFile\n",err); |
| } |
| } |
| else |
| unzCloseCurrentFile(uf); /* don't lose the error */ |
| } |
| |
| free(buf); |
| return err; |
| } |
| |
| |
| int do_extract(uf,opt_extract_without_path,opt_overwrite,password) |
| unzFile uf; |
| int opt_extract_without_path; |
| int opt_overwrite; |
| const char* password; |
| { |
| uLong i; |
| unz_global_info64 gi; |
| int err; |
| FILE* fout=NULL; |
| |
| err = unzGetGlobalInfo64(uf,&gi); |
| if (err!=UNZ_OK) |
| printf("error %d with zipfile in unzGetGlobalInfo \n",err); |
| |
| for (i=0;i<gi.number_entry;i++) |
| { |
| if (do_extract_currentfile(uf,&opt_extract_without_path, |
| &opt_overwrite, |
| password) != UNZ_OK) |
| break; |
| |
| if ((i+1)<gi.number_entry) |
| { |
| err = unzGoToNextFile(uf); |
| if (err!=UNZ_OK) |
| { |
| printf("error %d with zipfile in unzGoToNextFile\n",err); |
| break; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,password) |
| unzFile uf; |
| const char* filename; |
| int opt_extract_without_path; |
| int opt_overwrite; |
| const char* password; |
| { |
| int err = UNZ_OK; |
| if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK) |
| { |
| printf("file %s not found in the zipfile\n",filename); |
| return 2; |
| } |
| |
| if (do_extract_currentfile(uf,&opt_extract_without_path, |
| &opt_overwrite, |
| password) == UNZ_OK) |
| return 0; |
| else |
| return 1; |
| } |
| |
| |
| int main(argc,argv) |
| int argc; |
| char *argv[]; |
| { |
| const char *zipfilename=NULL; |
| const char *filename_to_extract=NULL; |
| const char *password=NULL; |
| char filename_try[MAXFILENAME+16] = ""; |
| int i; |
| int ret_value=0; |
| int opt_do_list=0; |
| int opt_do_extract=1; |
| int opt_do_extract_withoutpath=0; |
| int opt_overwrite=0; |
| int opt_extractdir=0; |
| const char *dirname=NULL; |
| unzFile uf=NULL; |
| |
| do_banner(); |
| if (argc==1) |
| { |
| do_help(); |
| return 0; |
| } |
| else |
| { |
| for (i=1;i<argc;i++) |
| { |
| if ((*argv[i])=='-') |
| { |
| const char *p=argv[i]+1; |
| |
| while ((*p)!='\0') |
| { |
| char c=*(p++);; |
| if ((c=='l') || (c=='L')) |
| opt_do_list = 1; |
| if ((c=='v') || (c=='V')) |
| opt_do_list = 1; |
| if ((c=='x') || (c=='X')) |
| opt_do_extract = 1; |
| if ((c=='e') || (c=='E')) |
| opt_do_extract = opt_do_extract_withoutpath = 1; |
| if ((c=='o') || (c=='O')) |
| opt_overwrite=1; |
| if ((c=='d') || (c=='D')) |
| { |
| opt_extractdir=1; |
| dirname=argv[i+1]; |
| } |
| |
| if (((c=='p') || (c=='P')) && (i+1<argc)) |
| { |
| password=argv[i+1]; |
| i++; |
| } |
| } |
| } |
| else |
| { |
| if (zipfilename == NULL) |
| zipfilename = argv[i]; |
| else if ((filename_to_extract==NULL) && (!opt_extractdir)) |
| filename_to_extract = argv[i] ; |
| } |
| } |
| } |
| |
| if (zipfilename!=NULL) |
| { |
| |
| # ifdef USEWIN32IOAPI |
| zlib_filefunc64_def ffunc; |
| # endif |
| |
| strncpy(filename_try, zipfilename,MAXFILENAME-1); |
| /* strncpy doesnt append the trailing NULL, of the string is too long. */ |
| filename_try[ MAXFILENAME ] = '\0'; |
| |
| # ifdef USEWIN32IOAPI |
| fill_win32_filefunc64A(&ffunc); |
| uf = unzOpen2_64(zipfilename,&ffunc); |
| # else |
| uf = unzOpen64(zipfilename); |
| # endif |
| if (uf==NULL) |
| { |
| strcat(filename_try,".zip"); |
| # ifdef USEWIN32IOAPI |
| uf = unzOpen2_64(filename_try,&ffunc); |
| # else |
| uf = unzOpen64(filename_try); |
| # endif |
| } |
| } |
| |
| if (uf==NULL) |
| { |
| printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename); |
| return 1; |
| } |
| printf("%s opened\n",filename_try); |
| |
| if (opt_do_list==1) |
| ret_value = do_list(uf); |
| else if (opt_do_extract==1) |
| { |
| #ifdef _WIN32 |
| if (opt_extractdir && _chdir(dirname)) |
| #else |
| if (opt_extractdir && chdir(dirname)) |
| #endif |
| { |
| printf("Error changing into %s, aborting\n", dirname); |
| exit(-1); |
| } |
| |
| if (filename_to_extract == NULL) |
| ret_value = do_extract(uf, opt_do_extract_withoutpath, opt_overwrite, password); |
| else |
| ret_value = do_extract_onefile(uf, filename_to_extract, opt_do_extract_withoutpath, opt_overwrite, password); |
| } |
| |
| unzClose(uf); |
| |
| return ret_value; |
| } |
