xref: /onnv-gate/usr/src/cmd/sgs/libelf/common/getshstrndx.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <string.h>
30*0Sstevel@tonic-gate #include <gelf.h>
31*0Sstevel@tonic-gate #include <decl.h>
32*0Sstevel@tonic-gate #include <msg.h>
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate int
35*0Sstevel@tonic-gate elf_getshstrndx(Elf *elf, size_t *shstrndx)
36*0Sstevel@tonic-gate {
37*0Sstevel@tonic-gate 	GElf_Ehdr	ehdr;
38*0Sstevel@tonic-gate 	Elf_Scn		*scn;
39*0Sstevel@tonic-gate 	GElf_Shdr	shdr0;
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate 	if (gelf_getehdr(elf, &ehdr) == 0)
42*0Sstevel@tonic-gate 		return (0);
43*0Sstevel@tonic-gate 	if (ehdr.e_shstrndx != SHN_XINDEX) {
44*0Sstevel@tonic-gate 		*shstrndx = ehdr.e_shstrndx;
45*0Sstevel@tonic-gate 		return (1);
46*0Sstevel@tonic-gate 	}
47*0Sstevel@tonic-gate 	if ((scn = elf_getscn(elf, 0)) == 0)
48*0Sstevel@tonic-gate 		return (0);
49*0Sstevel@tonic-gate 	if (gelf_getshdr(scn, &shdr0) == 0)
50*0Sstevel@tonic-gate 		return (0);
51*0Sstevel@tonic-gate 	*shstrndx = shdr0.sh_link;
52*0Sstevel@tonic-gate 	return (1);
53*0Sstevel@tonic-gate }
54