17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*62b628a6SAli Bahrami * Common Development and Distribution License (the "License").
6*62b628a6SAli Bahrami * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate /*
22*62b628a6SAli Bahrami * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
237c478bd9Sstevel@tonic-gate * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
267c478bd9Sstevel@tonic-gate #include <string.h>
277c478bd9Sstevel@tonic-gate #include <gelf.h>
287c478bd9Sstevel@tonic-gate #include <decl.h>
297c478bd9Sstevel@tonic-gate #include <msg.h>
307c478bd9Sstevel@tonic-gate
31*62b628a6SAli Bahrami /*
32*62b628a6SAli Bahrami * Return section header array string table index, taking
33*62b628a6SAli Bahrami * extended headers into account.
34*62b628a6SAli Bahrami *
35*62b628a6SAli Bahrami * elf_getshstrndx() returns 0 for failure, and 1 for success.
36*62b628a6SAli Bahrami *
37*62b628a6SAli Bahrami * elf_getshdrstrndx() supercedes elf_getshstrndx(), which is now considered
38*62b628a6SAli Bahrami * obsolete. It returns -1 for failure and 0 for success, bringing us into
39*62b628a6SAli Bahrami * alignment with the interface agreed to in the 2002 gABI meeting.
40*62b628a6SAli Bahrami *
41*62b628a6SAli Bahrami * See the comment in getshnum.c for additional information.
42*62b628a6SAli Bahrami */
43*62b628a6SAli Bahrami
447c478bd9Sstevel@tonic-gate int
elf_getshdrstrndx(Elf * elf,size_t * shstrndx)45*62b628a6SAli Bahrami elf_getshdrstrndx(Elf *elf, size_t *shstrndx)
467c478bd9Sstevel@tonic-gate {
477c478bd9Sstevel@tonic-gate GElf_Ehdr ehdr;
487c478bd9Sstevel@tonic-gate Elf_Scn *scn;
497c478bd9Sstevel@tonic-gate GElf_Shdr shdr0;
507c478bd9Sstevel@tonic-gate
517c478bd9Sstevel@tonic-gate if (gelf_getehdr(elf, &ehdr) == 0)
52*62b628a6SAli Bahrami return (-1);
537c478bd9Sstevel@tonic-gate if (ehdr.e_shstrndx != SHN_XINDEX) {
547c478bd9Sstevel@tonic-gate *shstrndx = ehdr.e_shstrndx;
55*62b628a6SAli Bahrami return (0);
567c478bd9Sstevel@tonic-gate }
577c478bd9Sstevel@tonic-gate if ((scn = elf_getscn(elf, 0)) == 0)
58*62b628a6SAli Bahrami return (-1);
597c478bd9Sstevel@tonic-gate if (gelf_getshdr(scn, &shdr0) == 0)
60*62b628a6SAli Bahrami return (-1);
617c478bd9Sstevel@tonic-gate *shstrndx = shdr0.sh_link;
62*62b628a6SAli Bahrami return (0);
63*62b628a6SAli Bahrami }
64*62b628a6SAli Bahrami
65*62b628a6SAli Bahrami int
elf_getshstrndx(Elf * elf,size_t * shstrndx)66*62b628a6SAli Bahrami elf_getshstrndx(Elf *elf, size_t *shstrndx)
67*62b628a6SAli Bahrami {
68*62b628a6SAli Bahrami return (elf_getshdrstrndx(elf, shstrndx) == 0);
697c478bd9Sstevel@tonic-gate }
70