xref: /illumos-gate/usr/src/cmd/sgs/libelf/common/getarhdr.c (revision 9b9d39d2a32ff806d2431dbcc50968ef1e6d46b2)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1988 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 #include <ar.h>
31 #include "libelf.h"
32 #include "decl.h"
33 #include "member.h"
34 #include "msg.h"
35 
36 
37 Elf_Arhdr *
38 elf_getarhdr(Elf * elf)
39 {
40 	Member *	mh;
41 	Elf_Arhdr *	rc;
42 
43 	if (elf == 0)
44 		return (0);
45 	ELFRLOCK(elf)
46 	if ((mh = elf->ed_armem) == 0) {
47 		ELFUNLOCK(elf)
48 		_elf_seterr(EREQ_AR, 0);
49 		return (0);
50 	}
51 	if (mh->m_err != 0) {
52 		ELFUNLOCK(elf);
53 		/*LINTED*/
54 		_elf_seterr((Msg)mh->m_err, 0);
55 		return (0);
56 	}
57 	rc = &elf->ed_armem->m_hdr;
58 	ELFUNLOCK(elf)
59 	return (rc);
60 }
61