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/*
* Copyright (C) 2010 Frank Morgner
*
* This file is part of OpenSC.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int fread_to_eof(const char *file, unsigned char **buf, size_t *buflen)
{
FILE *input = NULL;
int r = 0;
unsigned char *p;
if (!buflen || !buf || !file)
goto err;
#define MAX_READ_LEN 0xfff
p = realloc(*buf, MAX_READ_LEN);
if (!p)
goto err;
*buf = p;
input = fopen(file, "rb");
if (!input) {
goto err;
}
*buflen = 0;
while (feof(input) == 0 && *buflen < MAX_READ_LEN) {
*buflen += fread(*buf+*buflen, 1, MAX_READ_LEN-*buflen, input);
if (ferror(input)) {
goto err;
}
}
r = 1;
err:
if (input)
fclose(input);
return r;
}