63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/*
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* Copyright (C) 2010 Frank Morgner
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*
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* This file is part of OpenSC.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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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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int fread_to_eof(const char *file, unsigned char **buf, size_t *buflen)
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{
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FILE *input = NULL;
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int r = 0;
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unsigned char *p;
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if (!buflen || !buf || !file)
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goto err;
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#define MAX_READ_LEN 0xfff
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p = realloc(*buf, MAX_READ_LEN);
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if (!p)
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goto err;
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*buf = p;
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input = fopen(file, "rb");
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if (!input) {
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goto err;
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}
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*buflen = 0;
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while (feof(input) == 0 && *buflen < MAX_READ_LEN) {
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*buflen += fread(*buf+*buflen, 1, MAX_READ_LEN-*buflen, input);
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if (ferror(input)) {
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goto err;
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}
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}
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r = 1;
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err:
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if (input)
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fclose(input);
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return r;
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}
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