xref: /onnv-gate/usr/src/cmd/mdb/tools/common/findscn.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 2004 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 <libelf.h>
31*0Sstevel@tonic-gate #include <gelf.h>
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate #include <util.h>
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate int
findelfsecidx(Elf * elf,char * tofind)36*0Sstevel@tonic-gate findelfsecidx(Elf *elf, char *tofind)
37*0Sstevel@tonic-gate {
38*0Sstevel@tonic-gate 	Elf_Scn *scn = NULL;
39*0Sstevel@tonic-gate 	GElf_Ehdr ehdr;
40*0Sstevel@tonic-gate 	GElf_Shdr shdr;
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate 	if (gelf_getehdr(elf, &ehdr) == NULL)
43*0Sstevel@tonic-gate 		elfdie("failed to get ELF header");
44*0Sstevel@tonic-gate 
45*0Sstevel@tonic-gate 	while ((scn = elf_nextscn(elf, scn)) != NULL) {
46*0Sstevel@tonic-gate 		char *name;
47*0Sstevel@tonic-gate 
48*0Sstevel@tonic-gate 		if (gelf_getshdr(scn, &shdr) == NULL ||
49*0Sstevel@tonic-gate 		    (name = elf_strptr(elf, ehdr.e_shstrndx,
50*0Sstevel@tonic-gate 		    (size_t)shdr.sh_name)) == NULL)
51*0Sstevel@tonic-gate 			elfdie("failed to get section header");
52*0Sstevel@tonic-gate 
53*0Sstevel@tonic-gate 		if (strcmp(name, tofind) == 0)
54*0Sstevel@tonic-gate 			return (elf_ndxscn(scn));
55*0Sstevel@tonic-gate 	}
56*0Sstevel@tonic-gate 
57*0Sstevel@tonic-gate 	return (-1);
58*0Sstevel@tonic-gate }
59