| #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] | |
| 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 = CreateFile(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); | |
| 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 0.22, 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.]\n\n" \ | |
| " -e Extract without pathname (junk paths)\n" \ | |
| " -x Extract with pathname\n" \ | |
| " -v list files\n" \ | |
| " -l list files\n" \ | |
| " -o overwrite files without prompting\n" \ | |
| " -p extract crypted file using password\n\n"); | |
| } | |
| int do_list(uf) | |
| unzFile uf; | |
| { | |
| uLong i; | |
| unz_global_info gi; | |
| int err; | |
| err = unzGetGlobalInfo (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_info file_info; | |
| uLong ratio=0; | |
| const char *string_method; | |
| char charCrypt=' '; | |
| err = unzGetCurrentFileInfo(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 = (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 | |
| string_method="Unkn. "; | |
| printf("%7lu %6s%c%7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n", | |
| file_info.uncompressed_size,string_method, | |
| charCrypt, | |
| file_info.compressed_size, | |
| 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_info file_info; | |
| uLong ratio=0; | |
| err = unzGetCurrentFileInfo(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 = fopen(write_filename,"rb"); | |
| if (ftestexist!=NULL) | |
| { | |
| fclose(ftestexist); | |
| do | |
| { | |
| char answer[128]; | |
| printf("The file %s exist. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename); | |
| scanf("%1s",answer); | |
| 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=fopen(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=fopen(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_info gi; | |
| int err; | |
| FILE* fout=NULL; | |
| err = unzGetGlobalInfo (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 opt_do_list=0; | |
| int opt_do_extract=1; | |
| int opt_do_extract_withoutpath=0; | |
| int opt_overwrite=0; | |
| 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=='p') || (c=='P')) && (i+1<argc)) | |
| { | |
| password=argv[i+1]; | |
| i++; | |
| } | |
| } | |
| } | |
| else | |
| { | |
| if (zipfilename == NULL) | |
| zipfilename = argv[i]; | |
| else if (filename_to_extract==NULL) | |
| filename_to_extract = argv[i] ; | |
| } | |
| } | |
| } | |
| if (zipfilename!=NULL) | |
| { | |
| #ifdef USEWIN32IOAPI | |
| zlib_filefunc_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_filefunc(&ffunc); | |
| uf = unzOpen2(zipfilename,&ffunc); | |
| #else | |
| uf = unzOpen(zipfilename); | |
| #endif | |
| if (uf==NULL) | |
| { | |
| strcat(filename_try,".zip"); | |
| #ifdef USEWIN32IOAPI | |
| uf = unzOpen2(filename_try,&ffunc); | |
| #else | |
| uf = unzOpen(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) | |
| return do_list(uf); | |
| else if (opt_do_extract==1) | |
| { | |
| if (filename_to_extract == NULL) | |
| return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite,password); | |
| else | |
| return do_extract_onefile(uf,filename_to_extract, | |
| opt_do_extract_withoutpath,opt_overwrite,password); | |
| } | |
| unzCloseCurrentFile(uf); | |
| return 0; | |
| } |