1 /* Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc.
2 Written by Ulrich Drepper <drepper@redhat.com>, 1998.
3
4 This program is Open Source software; you can redistribute it and/or
5 modify it under the terms of the Open Software License version 1.0 as
6 published by the Open Source Initiative.
7
8 You should have received a copy of the Open Software License along
9 with this program; if not, you may obtain a copy of the Open Software
10 License version 1.0 from http://www.opensource.org/licenses/osl.php or
11 by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
12 3001 King Ranch Road, Ukiah, CA 95482. */
13
14 #include <config.h>
15
16 #include <errno.h>
17 #include <fcntl.h>
18 #include <gelf.h>
19 #include <stdlib.h>
20 #include <stdio.h>
21 #include <string.h>
22
23 int
main(int argc,char * argv[])24 main (int argc, char *argv[])
25 {
26 Elf *elf;
27 int fd;
28 GElf_Ehdr ehdr;
29 size_t strndx;
30 Elf_Scn *scn;
31
32 fd = open (argv[1], O_RDONLY);
33 if (fd == -1)
34 {
35 printf ("cannot open \"%s\": %s\n", argv[1], strerror (errno));
36 exit (1);
37 }
38
39 elf_version (EV_CURRENT);
40
41 elf = elf_begin (fd, ELF_C_READ, NULL);
42 if (elf == NULL)
43 {
44 printf ("cannot open ELF file: %s\n", elf_errmsg (-1));
45 exit (1);
46 }
47
48 if (elf_kind (elf) != ELF_K_ELF)
49 {
50 printf ("\"%s\" is not an ELF file\n", argv[1]);
51 exit (1);
52 }
53
54 if (gelf_getehdr (elf, &ehdr) == NULL)
55 {
56 printf ("cannot get the ELF header: %s\n", elf_errmsg (-1));
57 exit (1);
58 }
59
60 strndx = ehdr.e_shstrndx;
61
62 scn = NULL;
63 while ((scn = elf_nextscn (elf, scn)) != NULL)
64 {
65 char *name = NULL;
66 GElf_Shdr shdr;
67
68 if (gelf_getshdr (scn, &shdr) != NULL)
69 name = elf_strptr (elf, strndx, (size_t) shdr.sh_name);
70
71 printf ("section: `%s'\n", name);
72 }
73
74 if (elf_end (elf) != 0)
75 {
76 printf ("error while freeing ELF descriptor: %s\n", elf_errmsg (-1));
77 exit (1);
78 }
79
80 return 0;
81 }
82