| /* |
| minizip.c |
| Version 1.01e, February 12th, 2005 |
| |
| Copyright (C) 1998-2005 Gilles Vollant |
| */ |
| |
| #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> |
| # include <sys/types.h> |
| # include <sys/stat.h> |
| #else |
| # include <direct.h> |
| # include <io.h> |
| #endif |
| |
| #include "zip.h" |
| |
| #ifdef WIN32 |
| #define USEWIN32IOAPI |
| #include "iowin32.h" |
| #endif |
| |
| |
| |
| #define WRITEBUFFERSIZE (16384) |
| #define MAXFILENAME (256) |
| |
| #ifdef WIN32 |
| uLong filetime(f, tmzip, dt) |
| char *f; /* name of file to get info on */ |
| tm_zip *tmzip; /* return value: access, modific. and creation times */ |
| uLong *dt; /* dostime */ |
| { |
| int ret = 0; |
| { |
| FILETIME ftLocal; |
| HANDLE hFind; |
| WIN32_FIND_DATA ff32; |
| |
| hFind = FindFirstFile(f,&ff32); |
| if (hFind != INVALID_HANDLE_VALUE) |
| { |
| FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal); |
| FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0); |
| FindClose(hFind); |
| ret = 1; |
| } |
| } |
| return ret; |
| } |
| #else |
| #ifdef unix |
| uLong filetime(f, tmzip, dt) |
| char *f; /* name of file to get info on */ |
| tm_zip *tmzip; /* return value: access, modific. and creation times */ |
| uLong *dt; /* dostime */ |
| { |
| int ret=0; |
| struct stat s; /* results of stat() */ |
| struct tm* filedate; |
| time_t tm_t=0; |
| |
| if (strcmp(f,"-")!=0) |
| { |
| char name[MAXFILENAME+1]; |
| int len = strlen(f); |
| if (len > MAXFILENAME) |
| len = MAXFILENAME; |
| |
| strncpy(name, f,MAXFILENAME-1); |
| /* strncpy doesnt append the trailing NULL, of the string is too long. */ |
| name[ MAXFILENAME ] = '\0'; |
| |
| if (name[len - 1] == '/') |
| name[len - 1] = '\0'; |
| /* not all systems allow stat'ing a file with / appended */ |
| if (stat(name,&s)==0) |
| { |
| tm_t = s.st_mtime; |
| ret = 1; |
| } |
| } |
| filedate = localtime(&tm_t); |
| |
| tmzip->tm_sec = filedate->tm_sec; |
| tmzip->tm_min = filedate->tm_min; |
| tmzip->tm_hour = filedate->tm_hour; |
| tmzip->tm_mday = filedate->tm_mday; |
| tmzip->tm_mon = filedate->tm_mon ; |
| tmzip->tm_year = filedate->tm_year; |
| |
| return ret; |
| } |
| #else |
| uLong filetime(f, tmzip, dt) |
| char *f; /* name of file to get info on */ |
| tm_zip *tmzip; /* return value: access, modific. and creation times */ |
| uLong *dt; /* dostime */ |
| { |
| return 0; |
| } |
| #endif |
| #endif |
| |
| |
| |
| |
| int check_exist_file(filename) |
| const char* filename; |
| { |
| FILE* ftestexist; |
| int ret = 1; |
| ftestexist = fopen(filename,"rb"); |
| if (ftestexist==NULL) |
| ret = 0; |
| else |
| fclose(ftestexist); |
| return ret; |
| } |
| |
| void do_banner() |
| { |
| printf("MiniZip 1.01b, demo of zLib + Zip package written by Gilles Vollant\n"); |
| printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n"); |
| } |
| |
| void do_help() |
| { |
| printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] file.zip [files_to_add]\n\n" \ |
| " -o Overwrite existing file.zip\n" \ |
| " -a Append to existing file.zip\n" \ |
| " -0 Store only\n" \ |
| " -1 Compress faster\n" \ |
| " -9 Compress better\n\n"); |
| } |
| |
| /* calculate the CRC32 of a file, |
| because to encrypt a file, we need known the CRC32 of the file before */ |
| int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc) |
| { |
| unsigned long calculate_crc=0; |
| int err=ZIP_OK; |
| FILE * fin = fopen(filenameinzip,"rb"); |
| unsigned long size_read = 0; |
| unsigned long total_read = 0; |
| if (fin==NULL) |
| { |
| err = ZIP_ERRNO; |
| } |
| |
| if (err == ZIP_OK) |
| do |
| { |
| err = ZIP_OK; |
| size_read = (int)fread(buf,1,size_buf,fin); |
| if (size_read < size_buf) |
| if (feof(fin)==0) |
| { |
| printf("error in reading %s\n",filenameinzip); |
| err = ZIP_ERRNO; |
| } |
| |
| if (size_read>0) |
| calculate_crc = crc32(calculate_crc,buf,size_read); |
| total_read += size_read; |
| |
| } while ((err == ZIP_OK) && (size_read>0)); |
| |
| if (fin) |
| fclose(fin); |
| |
| *result_crc=calculate_crc; |
| printf("file %s crc %x\n",filenameinzip,calculate_crc); |
| return err; |
| } |
| |
| int main(argc,argv) |
| int argc; |
| char *argv[]; |
| { |
| int i; |
| int opt_overwrite=0; |
| int opt_compress_level=Z_DEFAULT_COMPRESSION; |
| int zipfilenamearg = 0; |
| char filename_try[MAXFILENAME+16]; |
| int zipok; |
| int err=0; |
| int size_buf=0; |
| void* buf=NULL; |
| const char* password=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=='o') || (c=='O')) |
| opt_overwrite = 1; |
| if ((c=='a') || (c=='A')) |
| opt_overwrite = 2; |
| if ((c>='0') && (c<='9')) |
| opt_compress_level = c-'0'; |
| |
| if (((c=='p') || (c=='P')) && (i+1<argc)) |
| { |
| password=argv[i+1]; |
| i++; |
| } |
| } |
| } |
| else |
| if (zipfilenamearg == 0) |
| zipfilenamearg = i ; |
| } |
| } |
| |
| size_buf = WRITEBUFFERSIZE; |
| buf = (void*)malloc(size_buf); |
| if (buf==NULL) |
| { |
| printf("Error allocating memory\n"); |
| return ZIP_INTERNALERROR; |
| } |
| |
| if (zipfilenamearg==0) |
| zipok=0; |
| else |
| { |
| int i,len; |
| int dot_found=0; |
| |
| zipok = 1 ; |
| strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1); |
| /* strncpy doesnt append the trailing NULL, of the string is too long. */ |
| filename_try[ MAXFILENAME ] = '\0'; |
| |
| len=(int)strlen(filename_try); |
| for (i=0;i<len;i++) |
| if (filename_try[i]=='.') |
| dot_found=1; |
| |
| if (dot_found==0) |
| strcat(filename_try,".zip"); |
| |
| if (opt_overwrite==2) |
| { |
| /* if the file don't exist, we not append file */ |
| if (check_exist_file(filename_try)==0) |
| opt_overwrite=1; |
| } |
| else |
| if (opt_overwrite==0) |
| if (check_exist_file(filename_try)!=0) |
| { |
| char rep=0; |
| do |
| { |
| char answer[128]; |
| int ret; |
| printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try); |
| 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') |
| zipok = 0; |
| if (rep=='A') |
| opt_overwrite = 2; |
| } |
| } |
| |
| if (zipok==1) |
| { |
| zipFile zf; |
| int errclose; |
| # ifdef USEWIN32IOAPI |
| zlib_filefunc_def ffunc; |
| fill_win32_filefunc(&ffunc); |
| zf = zipOpen2(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc); |
| # else |
| zf = zipOpen(filename_try,(opt_overwrite==2) ? 2 : 0); |
| # endif |
| |
| if (zf == NULL) |
| { |
| printf("error opening %s\n",filename_try); |
| err= ZIP_ERRNO; |
| } |
| else |
| printf("creating %s\n",filename_try); |
| |
| for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++) |
| { |
| if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) && |
| ((argv[i][1]=='o') || (argv[i][1]=='O') || |
| (argv[i][1]=='a') || (argv[i][1]=='A') || |
| (argv[i][1]=='p') || (argv[i][1]=='P') || |
| ((argv[i][1]>='0') || (argv[i][1]<='9'))) && |
| (strlen(argv[i]) == 2))) |
| { |
| FILE * fin; |
| int size_read; |
| const char* filenameinzip = argv[i]; |
| zip_fileinfo zi; |
| unsigned long crcFile=0; |
| |
| zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour = |
| zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0; |
| zi.dosDate = 0; |
| zi.internal_fa = 0; |
| zi.external_fa = 0; |
| filetime(filenameinzip,&zi.tmz_date,&zi.dosDate); |
| |
| /* |
| err = zipOpenNewFileInZip(zf,filenameinzip,&zi, |
| NULL,0,NULL,0,NULL / * comment * /, |
| (opt_compress_level != 0) ? Z_DEFLATED : 0, |
| opt_compress_level); |
| */ |
| if ((password != NULL) && (err==ZIP_OK)) |
| err = getFileCrc(filenameinzip,buf,size_buf,&crcFile); |
| |
| err = zipOpenNewFileInZip3(zf,filenameinzip,&zi, |
| NULL,0,NULL,0,NULL /* comment*/, |
| (opt_compress_level != 0) ? Z_DEFLATED : 0, |
| opt_compress_level,0, |
| /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */ |
| -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| password,crcFile); |
| |
| if (err != ZIP_OK) |
| printf("error in opening %s in zipfile\n",filenameinzip); |
| else |
| { |
| fin = fopen(filenameinzip,"rb"); |
| if (fin==NULL) |
| { |
| err=ZIP_ERRNO; |
| printf("error in opening %s for reading\n",filenameinzip); |
| } |
| } |
| |
| if (err == ZIP_OK) |
| do |
| { |
| err = ZIP_OK; |
| size_read = (int)fread(buf,1,size_buf,fin); |
| if (size_read < size_buf) |
| if (feof(fin)==0) |
| { |
| printf("error in reading %s\n",filenameinzip); |
| err = ZIP_ERRNO; |
| } |
| |
| if (size_read>0) |
| { |
| err = zipWriteInFileInZip (zf,buf,size_read); |
| if (err<0) |
| { |
| printf("error in writing %s in the zipfile\n", |
| filenameinzip); |
| } |
| |
| } |
| } while ((err == ZIP_OK) && (size_read>0)); |
| |
| if (fin) |
| fclose(fin); |
| |
| if (err<0) |
| err=ZIP_ERRNO; |
| else |
| { |
| err = zipCloseFileInZip(zf); |
| if (err!=ZIP_OK) |
| printf("error in closing %s in the zipfile\n", |
| filenameinzip); |
| } |
| } |
| } |
| errclose = zipClose(zf,NULL); |
| if (errclose != ZIP_OK) |
| printf("error in closing %s\n",filename_try); |
| } |
| else |
| { |
| do_help(); |
| } |
| |
| free(buf); |
| return 0; |
| } |
