libelf_shdr.c revision 1.4 
1/*	$NetBSD: libelf_shdr.c,v 1.4 2022/05/01 19:41:35 jkoshy Exp $	*/
2
3/*-
4 * Copyright (c) 2006,2008 Joseph Koshy
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <gelf.h>
30#include <libelf.h>
31
32#include "_libelf.h"
33
34__RCSID("$NetBSD: libelf_shdr.c,v 1.4 2022/05/01 19:41:35 jkoshy Exp $");
35ELFTC_VCSID("Id: libelf_shdr.c 3174 2015-03-27 17:13:41Z emaste");
36
37void *
38_libelf_getshdr(Elf_Scn *s, int ec)
39{
40	Elf *e;
41
42	if (s == NULL || (e = s->s_elf) == NULL ||
43	    e->e_kind != ELF_K_ELF) {
44		LIBELF_SET_ERROR(ARGUMENT, 0);
45		return (NULL);
46	}
47
48	if (ec == ELFCLASSNONE)
49		ec = e->e_class;
50
51	if (ec != e->e_class) {
52		LIBELF_SET_ERROR(CLASS, 0);
53		return (NULL);
54	}
55
56	return ((void *) &s->s_shdr);
57}
58