1 /* Copyright (C) 2006 Red Hat, Inc.
2 This file is part of elfutils.
3
4 This file is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 elfutils is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
16
17 #ifdef HAVE_CONFIG_H
18 # include <config.h>
19 #endif
20
21 #include <errno.h>
22 #include <stdio.h>
23 #include <fcntl.h>
24 #include <unistd.h>
25 #include <libelf.h>
26 #include "system.h"
27
28 int
main(int argc,char * argv[])29 main (int argc __attribute__ ((unused)), char *argv[])
30 {
31 int fd = open (argv[1], O_RDWR);
32 if (fd < 0)
33 error (2, errno, "open: %s", argv[1]);
34
35 if (elf_version (EV_CURRENT) == EV_NONE)
36 error (1, 0, "libelf version mismatch");
37
38 Elf *elf = elf_begin (fd, ELF_C_RDWR_MMAP, NULL);
39 if (elf == NULL)
40 error (1, 0, "elf_begin: %s", elf_errmsg (-1));
41
42 if (elf_update (elf, ELF_C_WRITE) < 0)
43 error (1, 0, "elf_update: %s", elf_errmsg (-1));
44
45 elf_end (elf);
46 close (fd);
47
48 return 0;
49 }
50