1/*-
2 * Copyright (c) 2006 Joseph Koshy
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <ar.h>
31#include <libelf.h>
32
33#include "_libelf.h"
34
35static int
36_libelf_getshdrstrndx(Elf *e, size_t *strndx)
37{
38	void *eh;
39	int ec;
40
41	if (e == NULL || e->e_kind != ELF_K_ELF ||
42	    ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
43		LIBELF_SET_ERROR(ARGUMENT, 0);
44		return (-1);
45	}
46
47	if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
48		return (-1);
49
50	*strndx = e->e_u.e_elf.e_strndx;
51
52	return (0);
53}
54
55int
56elf_getshdrstrndx(Elf *e, size_t *strndx)
57{
58	return (_libelf_getshdrstrndx(e, strndx));
59}
60
61int
62elf_getshstrndx(Elf *e, size_t *strndx)	/* Deprecated API. */
63{
64	return (_libelf_getshdrstrndx(e, strndx) >= 0);
65}
66
67int
68elf_setshstrndx(Elf *e, size_t strndx)
69{
70	void *eh;
71	int ec;
72
73	if (e == NULL || e->e_kind != ELF_K_ELF ||
74	    ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) ||
75	    ((eh = _libelf_ehdr(e, ec, 0)) == NULL)) {
76		LIBELF_SET_ERROR(ARGUMENT, 0);
77		return (0);
78	}
79
80	return (_libelf_setshstrndx(e, eh, ec, strndx));
81}
82