mirror of https://github.com/snes9xgit/snes9x.git
421 lines
11 KiB
C
421 lines
11 KiB
C
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/*
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minizip.c
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Version 1.01e, February 12th, 2005
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Copyright (C) 1998-2005 Gilles Vollant
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*/
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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 unix
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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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#else
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# include <direct.h>
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# include <io.h>
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#endif
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#include "zip.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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#define WRITEBUFFERSIZE (16384)
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#define MAXFILENAME (256)
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#ifdef WIN32
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uLong filetime(f, tmzip, dt)
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char *f; /* name of file to get info on */
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tm_zip *tmzip; /* return value: access, modific. and creation times */
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uLong *dt; /* dostime */
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{
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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_DATA ff32;
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hFind = FindFirstFile(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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#else
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#ifdef unix
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uLong filetime(f, tmzip, dt)
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char *f; /* name of file to get info on */
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tm_zip *tmzip; /* return value: access, modific. and creation times */
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uLong *dt; /* dostime */
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{
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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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int 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 doesnt 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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/* not all systems allow stat'ing a file with / appended */
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if (stat(name,&s)==0)
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{
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tm_t = s.st_mtime;
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ret = 1;
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}
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}
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filedate = localtime(&tm_t);
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tmzip->tm_sec = filedate->tm_sec;
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tmzip->tm_min = filedate->tm_min;
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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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tmzip->tm_year = filedate->tm_year;
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return ret;
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}
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#else
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uLong filetime(f, tmzip, dt)
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char *f; /* name of file to get info on */
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tm_zip *tmzip; /* return value: access, modific. and creation times */
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uLong *dt; /* dostime */
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{
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return 0;
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}
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#endif
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#endif
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int check_exist_file(filename)
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const char* filename;
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{
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FILE* ftestexist;
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int ret = 1;
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ftestexist = fopen(filename,"rb");
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if (ftestexist==NULL)
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ret = 0;
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else
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fclose(ftestexist);
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return ret;
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}
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void do_banner()
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{
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printf("MiniZip 1.01b, demo of zLib + Zip package written by Gilles Vollant\n");
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printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
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}
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void do_help()
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{
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printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] file.zip [files_to_add]\n\n" \
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" -o Overwrite existing file.zip\n" \
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" -a Append to existing file.zip\n" \
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" -0 Store only\n" \
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" -1 Compress faster\n" \
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" -9 Compress better\n\n");
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}
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/* calculate the CRC32 of a file,
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because to encrypt a file, we need known the CRC32 of the file before */
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int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc)
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{
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unsigned long calculate_crc=0;
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int err=ZIP_OK;
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FILE * fin = fopen(filenameinzip,"rb");
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unsigned long size_read = 0;
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unsigned long total_read = 0;
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if (fin==NULL)
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{
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err = ZIP_ERRNO;
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}
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if (err == ZIP_OK)
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do
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{
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err = ZIP_OK;
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size_read = (int)fread(buf,1,size_buf,fin);
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if (size_read < size_buf)
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if (feof(fin)==0)
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{
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printf("error in reading %s\n",filenameinzip);
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err = ZIP_ERRNO;
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}
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if (size_read>0)
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calculate_crc = crc32(calculate_crc,buf,size_read);
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total_read += size_read;
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} while ((err == ZIP_OK) && (size_read>0));
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if (fin)
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fclose(fin);
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*result_crc=calculate_crc;
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printf("file %s crc %x\n",filenameinzip,calculate_crc);
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return err;
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}
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int main(argc,argv)
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int argc;
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char *argv[];
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{
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int i;
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int opt_overwrite=0;
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int opt_compress_level=Z_DEFAULT_COMPRESSION;
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int zipfilenamearg = 0;
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char filename_try[MAXFILENAME+16];
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int zipok;
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int err=0;
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int size_buf=0;
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void* buf=NULL;
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const char* password=NULL;
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do_banner();
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if (argc==1)
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{
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do_help();
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return 0;
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}
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else
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{
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for (i=1;i<argc;i++)
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{
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if ((*argv[i])=='-')
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{
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const char *p=argv[i]+1;
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while ((*p)!='\0')
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{
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char c=*(p++);;
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if ((c=='o') || (c=='O'))
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opt_overwrite = 1;
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if ((c=='a') || (c=='A'))
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opt_overwrite = 2;
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if ((c>='0') && (c<='9'))
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opt_compress_level = c-'0';
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if (((c=='p') || (c=='P')) && (i+1<argc))
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{
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password=argv[i+1];
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i++;
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}
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}
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}
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else
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if (zipfilenamearg == 0)
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zipfilenamearg = i ;
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}
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}
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size_buf = WRITEBUFFERSIZE;
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buf = (void*)malloc(size_buf);
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if (buf==NULL)
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{
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printf("Error allocating memory\n");
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return ZIP_INTERNALERROR;
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}
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if (zipfilenamearg==0)
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zipok=0;
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else
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{
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int i,len;
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int dot_found=0;
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zipok = 1 ;
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strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
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/* strncpy doesnt append the trailing NULL, of the string is too long. */
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filename_try[ MAXFILENAME ] = '\0';
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len=(int)strlen(filename_try);
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for (i=0;i<len;i++)
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if (filename_try[i]=='.')
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dot_found=1;
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if (dot_found==0)
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strcat(filename_try,".zip");
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if (opt_overwrite==2)
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{
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/* if the file don't exist, we not append file */
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if (check_exist_file(filename_try)==0)
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opt_overwrite=1;
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}
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else
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if (opt_overwrite==0)
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if (check_exist_file(filename_try)!=0)
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{
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char rep=0;
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do
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{
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char answer[128];
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int ret;
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printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
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ret = scanf("%1s",answer);
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if (ret != 1)
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{
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exit(EXIT_FAILURE);
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}
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rep = answer[0] ;
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if ((rep>='a') && (rep<='z'))
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rep -= 0x20;
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}
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while ((rep!='Y') && (rep!='N') && (rep!='A'));
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if (rep=='N')
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zipok = 0;
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if (rep=='A')
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opt_overwrite = 2;
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}
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}
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if (zipok==1)
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{
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zipFile zf;
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int errclose;
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# ifdef USEWIN32IOAPI
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zlib_filefunc_def ffunc;
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fill_win32_filefunc(&ffunc);
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zf = zipOpen2(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
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# else
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zf = zipOpen(filename_try,(opt_overwrite==2) ? 2 : 0);
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# endif
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if (zf == NULL)
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{
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printf("error opening %s\n",filename_try);
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err= ZIP_ERRNO;
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}
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else
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printf("creating %s\n",filename_try);
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for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
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{
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if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) &&
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((argv[i][1]=='o') || (argv[i][1]=='O') ||
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(argv[i][1]=='a') || (argv[i][1]=='A') ||
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(argv[i][1]=='p') || (argv[i][1]=='P') ||
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((argv[i][1]>='0') || (argv[i][1]<='9'))) &&
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(strlen(argv[i]) == 2)))
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{
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FILE * fin;
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int size_read;
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const char* filenameinzip = argv[i];
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zip_fileinfo zi;
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unsigned long crcFile=0;
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zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
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zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
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zi.dosDate = 0;
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zi.internal_fa = 0;
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zi.external_fa = 0;
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filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
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/*
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err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
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NULL,0,NULL,0,NULL / * comment * /,
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(opt_compress_level != 0) ? Z_DEFLATED : 0,
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opt_compress_level);
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*/
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if ((password != NULL) && (err==ZIP_OK))
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err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
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err = zipOpenNewFileInZip3(zf,filenameinzip,&zi,
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NULL,0,NULL,0,NULL /* comment*/,
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(opt_compress_level != 0) ? Z_DEFLATED : 0,
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opt_compress_level,0,
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/* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
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-MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
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password,crcFile);
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if (err != ZIP_OK)
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printf("error in opening %s in zipfile\n",filenameinzip);
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else
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{
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fin = fopen(filenameinzip,"rb");
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if (fin==NULL)
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{
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err=ZIP_ERRNO;
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printf("error in opening %s for reading\n",filenameinzip);
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}
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}
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if (err == ZIP_OK)
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do
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{
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err = ZIP_OK;
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size_read = (int)fread(buf,1,size_buf,fin);
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if (size_read < size_buf)
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if (feof(fin)==0)
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{
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printf("error in reading %s\n",filenameinzip);
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err = ZIP_ERRNO;
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}
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if (size_read>0)
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{
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err = zipWriteInFileInZip (zf,buf,size_read);
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if (err<0)
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{
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|
|
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;
|
||
|
|
}
|