1 /* Copyright (C) 1998, 1999, 2000, 2002, 2005 Red Hat, Inc.
2 This file is part of elfutils.
3 Written by Ulrich Drepper <drepper@redhat.com>, 1998.
4
5 This file is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 elfutils is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #include <config.h>
19
20 #include <errno.h>
21 #include <fcntl.h>
22 #include <gelf.h>
23 #include <stdlib.h>
24 #include <stdio.h>
25 #include <string.h>
26
27 int
main(int argc,char * argv[])28 main (int argc, char *argv[])
29 {
30 Elf *elf;
31 int fd;
32 GElf_Ehdr ehdr;
33 size_t strndx;
34 Elf_Scn *scn;
35
36 if (argc < 2)
37 {
38 puts ("missing parameter");
39 exit (1);
40 }
41
42 fd = open (argv[1], O_RDONLY);
43 if (fd == -1)
44 {
45 printf ("cannot open \"%s\": %s\n", argv[1], strerror (errno));
46 exit (1);
47 }
48
49 elf_version (EV_CURRENT);
50
51 elf = elf_begin (fd, ELF_C_READ, NULL);
52 if (elf == NULL)
53 {
54 printf ("cannot open ELF file: %s\n", elf_errmsg (-1));
55 exit (1);
56 }
57
58 if (elf_kind (elf) != ELF_K_ELF)
59 {
60 printf ("\"%s\" is not an ELF file\n", argv[1]);
61 exit (1);
62 }
63
64 if (gelf_getehdr (elf, &ehdr) == NULL)
65 {
66 printf ("cannot get the ELF header: %s\n", elf_errmsg (-1));
67 exit (1);
68 }
69
70 strndx = ehdr.e_shstrndx;
71
72 scn = NULL;
73 while ((scn = elf_nextscn (elf, scn)) != NULL)
74 {
75 char *name = NULL;
76 GElf_Shdr shdr;
77
78 if (gelf_getshdr (scn, &shdr) != NULL)
79 name = elf_strptr (elf, strndx, (size_t) shdr.sh_name);
80
81 printf ("section: `%s'\n", name);
82 }
83
84 if (elf_end (elf) != 0)
85 {
86 printf ("error while freeing ELF descriptor: %s\n", elf_errmsg (-1));
87 exit (1);
88 }
89
90 return 0;
91 }
92