1/* ----------------------------------------------------------------------- *
2 *
3 *   Copyright 2005-2008 H. Peter Anvin - All Rights Reserved
4 *
5 *   Permission is hereby granted, free of charge, to any person
6 *   obtaining a copy of this software and associated documentation
7 *   files (the "Software"), to deal in the Software without
8 *   restriction, including without limitation the rights to use,
9 *   copy, modify, merge, publish, distribute, sublicense, and/or
10 *   sell copies of the Software, and to permit persons to whom
11 *   the Software is furnished to do so, subject to the following
12 *   conditions:
13 *
14 *   The above copyright notice and this permission notice shall
15 *   be included in all copies or substantial portions of the Software.
16 *
17 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
19 *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21 *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 *   OTHER DEALINGS IN THE SOFTWARE.
25 *
26 * ----------------------------------------------------------------------- */
27
28/*
29 * loadfile.c
30 *
31 * Read the contents of a data file into a malloc'd buffer
32 */
33
34#include <errno.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <unistd.h>
38#include <string.h>
39#include <fcntl.h>
40#include <sys/stat.h>
41
42#include <syslinux/loadfile.h>
43
44#define INCREMENTAL_CHUNK 1024*1024
45
46int loadfile(const char *filename, void **ptr, size_t * len)
47{
48    FILE *f;
49    int rv, e;
50
51    f = fopen(filename, "r");
52    if (!f)
53	return -1;
54
55    rv = floadfile(f, ptr, len, NULL, 0);
56    e = errno;
57
58    fclose(f);
59
60    if (rv)
61	errno = e;
62    return rv;
63}
64