1 /* $NetBSD: libelf_shdr.c,v 1.5 2024/03/03 17:37:34 christos 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 <sys/cdefs.h>
30
31 #include <gelf.h>
32 #include <libelf.h>
33
34 #include "_libelf.h"
35
36 __RCSID("$NetBSD: libelf_shdr.c,v 1.5 2024/03/03 17:37:34 christos Exp $");
37 ELFTC_VCSID("Id: libelf_shdr.c 3977 2022-05-01 06:45:34Z jkoshy");
38
39 void *
_libelf_getshdr(Elf_Scn * s,int ec)40 _libelf_getshdr(Elf_Scn *s, int ec)
41 {
42 Elf *e;
43
44 if (s == NULL || (e = s->s_elf) == NULL ||
45 e->e_kind != ELF_K_ELF) {
46 LIBELF_SET_ERROR(ARGUMENT, 0);
47 return (NULL);
48 }
49
50 if (ec == ELFCLASSNONE)
51 ec = e->e_class;
52
53 if (ec != e->e_class) {
54 LIBELF_SET_ERROR(CLASS, 0);
55 return (NULL);
56 }
57
58 return ((void *) &s->s_shdr);
59 }
60