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/* |
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minizip.c |
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3
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sample part of the MiniZip project - ( https://www.winimage.com/zLibDll/minizip.html ) |
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4
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Copyright (C) 1998-2026 Gilles Vollant (minizip) ( https://www.winimage.com/zLibDll/minizip.html ) |
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7
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Modifications of Unzip for Zip64 |
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Copyright (C) 2007-2008 Even Rouault |
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9
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10
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Modifications for Zip64 support on both zip and unzip |
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Copyright (C) 2009-2010 Mathias Svensson ( https://result42.com ) |
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*/ |
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#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__)) |
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#ifndef __USE_FILE_OFFSET64 |
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#define __USE_FILE_OFFSET64 |
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#endif |
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#ifndef __USE_LARGEFILE64 |
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#define __USE_LARGEFILE64 |
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#endif |
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#ifndef _LARGEFILE64_SOURCE |
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#define _LARGEFILE64_SOURCE |
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#endif |
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#ifndef _FILE_OFFSET_BIT |
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#define _FILE_OFFSET_BIT 64 |
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#endif |
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#endif |
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#if defined(__APPLE__) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64) |
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// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions |
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#define FOPEN_FUNC(filename, mode) fopen(filename, mode) |
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#define FTELLO_FUNC(stream) ftello(stream) |
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#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin) |
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#else |
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#define FOPEN_FUNC(filename, mode) fopen64(filename, mode) |
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#define FTELLO_FUNC(stream) ftello64(stream) |
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#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin) |
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#endif |
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#ifndef _CRT_SECURE_NO_WARNINGS |
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# define _CRT_SECURE_NO_WARNINGS |
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#endif |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include <errno.h> |
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#include <fcntl.h> |
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#ifdef _WIN32 |
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# include <direct.h> |
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# include <io.h> |
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#else |
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# include <unistd.h> |
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# include <utime.h> |
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# include <sys/types.h> |
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# include <sys/stat.h> |
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#endif |
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#include "zip.h" |
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#include "ints.h" |
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#ifdef _WIN32 |
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#define USEWIN32IOAPI |
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#include "iowin32.h" |
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#endif |
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72
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#define WRITEBUFFERSIZE (16384) |
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#define MAXFILENAME (256) |
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#ifdef _WIN32 |
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/* f: name of file to get info on, tmzip: return value: access, |
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modification and creation times, dt: dostime */ |
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static int filetime(const char *f, tm_zip *tmzip, uLong *dt) { |
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(void)tmzip; |
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int ret = 0; |
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{ |
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FILETIME ftLocal; |
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HANDLE hFind; |
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WIN32_FIND_DATAA ff32; |
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hFind = FindFirstFileA(f,&ff32); |
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if (hFind != INVALID_HANDLE_VALUE) |
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{ |
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FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal); |
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FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0); |
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FindClose(hFind); |
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ret = 1; |
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} |
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} |
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return ret; |
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} |
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#elif defined(__unix__) || defined(__unix) || defined(__APPLE__) |
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/* f: name of file to get info on, tmzip: return value: access, |
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modification and creation times, dt: dostime */ |
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static int filetime(const char *f, tm_zip *tmzip, uLong *dt) { |
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(void)dt; |
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int ret=0; |
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struct stat s; /* results of stat() */ |
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struct tm* filedate; |
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time_t tm_t=0; |
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if (strcmp(f,"-")!=0) |
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{ |
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char name[MAXFILENAME+1]; |
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size_t len = strlen(f); |
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if (len > MAXFILENAME) |
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len = MAXFILENAME; |
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strncpy(name, f,MAXFILENAME-1); |
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/* strncpy doesn't append the trailing NULL, of the string is too long. */ |
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name[ MAXFILENAME ] = '\0'; |
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if (name[len - 1] == '/') |
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name[len - 1] = '\0'; |
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121
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/* not all systems allow stat'ing a file with / appended */ |
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if (stat(name,&s)==0) |
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123
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{ |
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tm_t = s.st_mtime; |
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ret = 1; |
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126
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} |
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127
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} |
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filedate = localtime(&tm_t); |
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129
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tmzip->tm_sec = filedate->tm_sec; |
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tmzip->tm_min = filedate->tm_min; |
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132
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tmzip->tm_hour = filedate->tm_hour; |
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tmzip->tm_mday = filedate->tm_mday; |
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tmzip->tm_mon = filedate->tm_mon ; |
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135
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tmzip->tm_year = filedate->tm_year; |
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136
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return ret; |
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138
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} |
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139
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#else |
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140
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/* f: name of file to get info on, tmzip: return value: access, |
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141
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modification and creation times, dt: dostime */ |
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static int filetime(const char *f, tm_zip *tmzip, uLong *dt) { |
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(void)f; |
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144
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(void)tmzip; |
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145
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(void)dt; |
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return 0; |
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147
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} |
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148
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#endif |
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149
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150
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151
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152
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153
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static int check_exist_file(const char* filename) { |
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154
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FILE* ftestexist; |
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155
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int ret = 1; |
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156
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ftestexist = FOPEN_FUNC(filename,"rb"); |
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if (ftestexist==NULL) |
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ret = 0; |
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159
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else |
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fclose(ftestexist); |
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161
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return ret; |
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162
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} |
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163
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164
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static void do_banner(void) { |
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printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n"); |
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printf("more info on MiniZip at https://www.winimage.com/zLibDll/minizip.html\n\n"); |
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167
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} |
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168
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169
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static void do_help(void) { |
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printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \ |
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171
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" -o Overwrite existing file.zip\n" \ |
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172
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" -a Append to existing file.zip\n" \ |
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173
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" -0 Store only\n" \ |
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174
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" -1 Compress faster\n" \ |
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175
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" -9 Compress better\n\n" \ |
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176
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" -j exclude path. store only the file name.\n\n"); |
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177
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} |
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178
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179
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/* calculate the CRC32 of a file, |
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180
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because to encrypt a file, we need known the CRC32 of the file before */ |
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181
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static int getFileCrc(const char* filenameinzip, void* buf, unsigned long size_buf, unsigned long* result_crc) { |
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182
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unsigned long calculate_crc=0; |
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183
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int err=ZIP_OK; |
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184
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FILE * fin = FOPEN_FUNC(filenameinzip,"rb"); |
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185
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186
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unsigned long size_read = 0; |
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187
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/* unsigned long total_read = 0; */ |
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188
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if (fin==NULL) |
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{ |
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190
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err = ZIP_ERRNO; |
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191
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} |
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192
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if (err == ZIP_OK) |
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do |
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195
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{ |
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err = ZIP_OK; |
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197
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size_read = (unsigned long)fread(buf,1,size_buf,fin); |
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198
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if (size_read < size_buf) |
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199
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if (feof(fin)==0) |
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{ |
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201
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printf("error in reading %s\n",filenameinzip); |
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err = ZIP_ERRNO; |
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203
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} |
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204
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if (size_read>0) |
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calculate_crc = crc32_z(calculate_crc,buf,size_read); |
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207
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/* total_read += size_read; */ |
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208
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209
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} while ((err == ZIP_OK) && (size_read>0)); |
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210
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211
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if (fin) |
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fclose(fin); |
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213
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214
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*result_crc=calculate_crc; |
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215
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printf("file %s crc %lx\n", filenameinzip, calculate_crc); |
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216
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return err; |
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217
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} |
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218
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219
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static int isLargeFile(const char* filename) { |
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220
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int largeFile = 0; |
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221
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ZPOS64_T pos = 0; |
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222
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FILE* pFile = FOPEN_FUNC(filename, "rb"); |
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223
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224
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if(pFile != NULL) |
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225
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{ |
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226
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FSEEKO_FUNC(pFile, 0, SEEK_END); |
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227
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pos = (ZPOS64_T)FTELLO_FUNC(pFile); |
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228
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229
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printf("File : %s is %"PUI64" bytes\n", filename, pos); |
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230
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231
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if(pos >= 0xffffffff) |
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232
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largeFile = 1; |
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233
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234
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fclose(pFile); |
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235
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} |
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236
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237
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return largeFile; |
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238
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} |
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239
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240
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int main(int argc, char *argv[]) { |
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241
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int i; |
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242
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int opt_overwrite=0; |
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243
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int opt_compress_level=Z_DEFAULT_COMPRESSION; |
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244
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int opt_exclude_path=0; |
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245
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int zipfilenamearg = 0; |
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246
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char filename_try[MAXFILENAME+16]; |
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247
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int zipok; |
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248
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int err=0; |
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249
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unsigned long size_buf=0; |
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250
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void* buf=NULL; |
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251
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const char* password=NULL; |
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252
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253
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254
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do_banner(); |
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255
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if (argc==1) |
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256
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{ |
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257
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do_help(); |
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258
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return 0; |
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259
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} |
|
260
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else |
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261
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{ |
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262
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for (i=1;i<argc;i++) |
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263
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{ |
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264
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if ((*argv[i])=='-') |
|
265
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{ |
|
266
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const char *p=argv[i]+1; |
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267
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268
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while ((*p)!='\0') |
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269
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{ |
|
270
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char c=*(p++); |
|
271
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if ((c=='o') || (c=='O')) |
|
272
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opt_overwrite = 1; |
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273
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if ((c=='a') || (c=='A')) |
|
274
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opt_overwrite = 2; |
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275
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if ((c>='0') && (c<='9')) |
|
276
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opt_compress_level = c-'0'; |
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277
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if ((c=='j') || (c=='J')) |
|
278
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opt_exclude_path = 1; |
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279
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|
280
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if (((c=='p') || (c=='P')) && (i+1<argc)) |
|
281
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{ |
|
282
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password=argv[i+1]; |
|
283
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i++; |
|
284
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} |
|
285
|
} |
|
286
|
} |
|
287
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else |
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288
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{ |
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289
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if (zipfilenamearg == 0) |
|
290
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{ |
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291
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zipfilenamearg = i ; |
|
292
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} |
|
293
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} |
|
294
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} |
|
295
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} |
|
296
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|
297
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size_buf = WRITEBUFFERSIZE; |
|
298
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buf = (void*)malloc(size_buf); |
|
299
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if (buf==NULL) |
|
300
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{ |
|
301
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printf("Error allocating memory\n"); |
|
302
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return ZIP_INTERNALERROR; |
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303
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} |
|
304
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305
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if (zipfilenamearg==0) |
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306
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{ |
|
307
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zipok=0; |
|
308
|
} |
|
309
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else |
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310
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{ |
|
311
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int len; |
|
312
|
int dot_found=0; |
|
313
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|
314
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zipok = 1 ; |
|
315
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strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1); |
|
316
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/* strncpy doesn't append the trailing NULL, of the string is too long. */ |
|
317
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filename_try[ MAXFILENAME ] = '\0'; |
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318
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319
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len=(int)strlen(filename_try); |
|
320
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for (i=0;i<len;i++) |
|
321
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if (filename_try[i]=='.') |
|
322
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dot_found=1; |
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323
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324
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if (dot_found==0) |
|
325
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strcat(filename_try,".zip"); |
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326
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|
327
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if (opt_overwrite==2) |
|
328
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{ |
|
329
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/* if the file don't exist, we not append file */ |
|
330
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if (check_exist_file(filename_try)==0) |
|
331
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opt_overwrite=1; |
|
332
|
} |
|
333
|
else |
|
334
|
if (opt_overwrite==0) |
|
335
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if (check_exist_file(filename_try)!=0) |
|
336
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{ |
|
337
|
char rep=0; |
|
338
|
do |
|
339
|
{ |
|
340
|
char answer[128]; |
|
341
|
int ret; |
|
342
|
printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try); |
|
343
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ret = scanf("%1s",answer); |
|
344
|
if (ret != 1) |
|
345
|
{ |
|
346
|
exit(EXIT_FAILURE); |
|
347
|
} |
|
348
|
rep = answer[0] ; |
|
349
|
if ((rep>='a') && (rep<='z')) |
|
350
|
rep -= 0x20; |
|
351
|
} |
|
352
|
while ((rep!='Y') && (rep!='N') && (rep!='A')); |
|
353
|
if (rep=='N') |
|
354
|
zipok = 0; |
|
355
|
if (rep=='A') |
|
356
|
opt_overwrite = 2; |
|
357
|
} |
|
358
|
} |
|
359
|
|
|
360
|
if (zipok==1) |
|
361
|
{ |
|
362
|
zipFile zf; |
|
363
|
int errclose; |
|
364
|
# ifdef USEWIN32IOAPI |
|
365
|
zlib_filefunc64_def ffunc; |
|
366
|
fill_win32_filefunc64A(&ffunc); |
|
367
|
zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc); |
|
368
|
# else |
|
369
|
zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0); |
|
370
|
# endif |
|
371
|
|
|
372
|
if (zf == NULL) |
|
373
|
{ |
|
374
|
printf("error opening %s\n",filename_try); |
|
375
|
err= ZIP_ERRNO; |
|
376
|
} |
|
377
|
else |
|
378
|
printf("creating %s\n",filename_try); |
|
379
|
|
|
380
|
for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++) |
|
381
|
{ |
|
382
|
if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) && |
|
383
|
((argv[i][1]=='o') || (argv[i][1]=='O') || |
|
384
|
(argv[i][1]=='a') || (argv[i][1]=='A') || |
|
385
|
(argv[i][1]=='p') || (argv[i][1]=='P') || |
|
386
|
((argv[i][1]>='0') && (argv[i][1]<='9'))) && |
|
387
|
(strlen(argv[i]) == 2))) |
|
388
|
{ |
|
389
|
FILE * fin = NULL; |
|
390
|
size_t size_read; |
|
391
|
const char* filenameinzip = argv[i]; |
|
392
|
const char *savefilenameinzip; |
|
393
|
zip_fileinfo zi; |
|
394
|
unsigned long crcFile=0; |
|
395
|
int zip64 = 0; |
|
396
|
|
|
397
|
zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour = |
|
398
|
zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0; |
|
399
|
zi.dosDate = 0; |
|
400
|
zi.internal_fa = 0; |
|
401
|
zi.external_fa = 0; |
|
402
|
filetime(filenameinzip,&zi.tmz_date,&zi.dosDate); |
|
403
|
|
|
404
|
/* |
|
405
|
err = zipOpenNewFileInZip(zf,filenameinzip,&zi, |
|
406
|
NULL,0,NULL,0,NULL / * comment * /, |
|
407
|
(opt_compress_level != 0) ? Z_DEFLATED : 0, |
|
408
|
opt_compress_level); |
|
409
|
*/ |
|
410
|
if ((password != NULL) && (err==ZIP_OK)) |
|
411
|
err = getFileCrc(filenameinzip,buf,size_buf,&crcFile); |
|
412
|
|
|
413
|
zip64 = isLargeFile(filenameinzip); |
|
414
|
|
|
415
|
/* The path name saved, should not include a leading slash. */ |
|
416
|
/*if it did, windows/xp and dynazip couldn't read the zip file. */ |
|
417
|
savefilenameinzip = filenameinzip; |
|
418
|
while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' ) |
|
419
|
{ |
|
420
|
savefilenameinzip++; |
|
421
|
} |
|
422
|
|
|
423
|
/*should the zip file contain any path at all?*/ |
|
424
|
if( opt_exclude_path ) |
|
425
|
{ |
|
426
|
const char *tmpptr; |
|
427
|
const char *lastslash = 0; |
|
428
|
for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++) |
|
429
|
{ |
|
430
|
if( *tmpptr == '\\' || *tmpptr == '/') |
|
431
|
{ |
|
432
|
lastslash = tmpptr; |
|
433
|
} |
|
434
|
} |
|
435
|
if( lastslash != NULL ) |
|
436
|
{ |
|
437
|
savefilenameinzip = lastslash+1; /* base filename follows last slash. */ |
|
438
|
} |
|
439
|
} |
|
440
|
|
|
441
|
/**/ |
|
442
|
err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi, |
|
443
|
NULL,0,NULL,0,NULL /* comment*/, |
|
444
|
(opt_compress_level != 0) ? Z_DEFLATED : 0, |
|
445
|
opt_compress_level,0, |
|
446
|
/* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */ |
|
447
|
-MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
|
448
|
password,crcFile, zip64); |
|
449
|
|
|
450
|
if (err != ZIP_OK) |
|
451
|
printf("error in opening %s in zipfile\n",filenameinzip); |
|
452
|
else |
|
453
|
{ |
|
454
|
fin = FOPEN_FUNC(filenameinzip,"rb"); |
|
455
|
if (fin==NULL) |
|
456
|
{ |
|
457
|
err=ZIP_ERRNO; |
|
458
|
printf("error in opening %s for reading\n",filenameinzip); |
|
459
|
} |
|
460
|
} |
|
461
|
|
|
462
|
if (err == ZIP_OK) |
|
463
|
do |
|
464
|
{ |
|
465
|
err = ZIP_OK; |
|
466
|
size_read = fread(buf,1,size_buf,fin); |
|
467
|
if (size_read < size_buf) |
|
468
|
if (feof(fin)==0) |
|
469
|
{ |
|
470
|
printf("error in reading %s\n",filenameinzip); |
|
471
|
err = ZIP_ERRNO; |
|
472
|
} |
|
473
|
|
|
474
|
if (size_read>0) |
|
475
|
{ |
|
476
|
err = zipWriteInFileInZip (zf,buf,(unsigned)size_read); |
|
477
|
if (err<0) |
|
478
|
{ |
|
479
|
printf("error in writing %s in the zipfile\n", |
|
480
|
filenameinzip); |
|
481
|
} |
|
482
|
|
|
483
|
} |
|
484
|
} while ((err == ZIP_OK) && (size_read>0)); |
|
485
|
|
|
486
|
if (fin) |
|
487
|
fclose(fin); |
|
488
|
|
|
489
|
if (err<0) |
|
490
|
err=ZIP_ERRNO; |
|
491
|
else |
|
492
|
{ |
|
493
|
err = zipCloseFileInZip(zf); |
|
494
|
if (err!=ZIP_OK) |
|
495
|
printf("error in closing %s in the zipfile\n", |
|
496
|
filenameinzip); |
|
497
|
} |
|
498
|
} |
|
499
|
} |
|
500
|
errclose = zipClose(zf,NULL); |
|
501
|
if (errclose != ZIP_OK) |
|
502
|
printf("error in closing %s\n",filename_try); |
|
503
|
} |
|
504
|
else |
|
505
|
{ |
|
506
|
do_help(); |
|
507
|
} |
|
508
|
|
|
509
|
free(buf); |
|
510
|
return err; |
|
511
|
} |
|
512
|
|