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// Copyright © 2010-2012 sss
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include <unistd.h>
#include <stdio.h>
#include <iconv.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
int opt = -1;
char ifile[256], ofile[256], fcharset[32], tcharset[32];
memset(ifile, 0, sizeof(ifile));
memset(ofile, 0, sizeof(ofile));
memset(fcharset, 0, sizeof(fcharset));
memset(tcharset, 0, sizeof(tcharset));
ifile[0] = 0;
ofile[0] = 0;
fcharset[0] = 0;
tcharset[0] = 0;
while((opt = getopt(argc, argv, "i:o:f:t:")) != -1)
{
switch(opt)
{
case 'i':
strncpy(ifile, optarg, sizeof(ifile) - 1);
break;
case 'o':
strncpy(ofile, optarg, sizeof(ofile) - 1);
break;
case 'f':
strncpy(fcharset, optarg, sizeof(fcharset) - 1);
break;
case 't':
strncpy(tcharset, optarg, sizeof(tcharset) - 1);
break;
default:
printf("usage: %s -ioft\n\t-i input file\n\t-o output file\n\t-f from charset\n\t-t to charset\n", argv[0]);
}
}
iconv_t id = iconv_open(tcharset, fcharset);
if((long)id == -1)
{
printf("failed to create iconv descriptor with error: %s\n", strerror(errno));
return 1;
}
FILE *in = fopen(ifile, "r");
if(!in)
{
printf("failed to open input file with error: %s\n", strerror(errno));
return 1;
}
FILE *out = fopen(ofile, "w");
if(!out)
{
printf("failed to open input file with error: %s\n", strerror(errno));
return 1;
}
while(!feof(in))
{
char *buf, *outbuf, *op, *ip;
buf = (char*)malloc(4096);
if (!buf)
{
printf("failed to allocate memory for \"buf\"\n");
return 1;
}
outbuf = (char*)malloc(4096);
if (!outbuf)
{
printf("failed to allocate memory for \"outbuf\"");
free(buf);
return 1;
}
op = outbuf;
ip = buf;
if(!fgets(buf, 4096, in))
{
if (buf)
free(buf);
if (outbuf)
free(outbuf);
break;
}
size_t len = strlen(buf), outlen = 4096;
int enc_len = iconv(id, &ip, &len, &op, &outlen);
if(enc_len == -1)
{
printf("failed to convert buffer with error: %s\n", strerror(errno));
free(buf);
free(outbuf);
return 1;
}
enc_len = 4096 - outlen;
if((int)fwrite(outbuf, 1, enc_len, out) != enc_len)
{
printf("failed to write data to file with error: %s\n", strerror(errno));
free(buf);
free(outbuf);
return 1;
}
free(buf);
free(outbuf);
}
return 0;
}
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