1/*-
2 * Copyright (c) 2006,2008 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 <ar.h>
28#include <libelf.h>
29
30#include "_libelf.h"
31
32ELFTC_VCSID("$Id: elf_shstrndx.c 3174 2015-03-27 17:13:41Z emaste $");
33
34static int
35_libelf_getshdrstrndx(Elf *e, size_t *strndx)
36{
37	void *eh;
38	int ec;
39
40	if (e == NULL || e->e_kind != ELF_K_ELF ||
41	    ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
42		LIBELF_SET_ERROR(ARGUMENT, 0);
43		return (-1);
44	}
45
46	if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
47		return (-1);
48
49	*strndx = e->e_u.e_elf.e_strndx;
50
51	return (0);
52}
53
54int
55elf_getshdrstrndx(Elf *e, size_t *strndx)
56{
57	return (_libelf_getshdrstrndx(e, strndx));
58}
59
60int
61elf_getshstrndx(Elf *e, size_t *strndx)	/* Deprecated API. */
62{
63	return (_libelf_getshdrstrndx(e, strndx) >= 0);
64}
65
66int
67elf_setshstrndx(Elf *e, size_t strndx)
68{
69	void *eh;
70	int ec;
71
72	if (e == NULL || e->e_kind != ELF_K_ELF ||
73	    ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) ||
74	    ((eh = _libelf_ehdr(e, ec, 0)) == NULL)) {
75		LIBELF_SET_ERROR(ARGUMENT, 0);
76		return (0);
77	}
78
79	return (_libelf_setshstrndx(e, eh, ec, strndx));
80}
81