xref: /titanic_41/usr/src/cmd/sgs/libelf/common/getarhdr.c (revision fa9e4066f08beec538e775443c5be79dd423fcab)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1988 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 /*
27  * Copyright (c) 2000 by Sun Microsystems, Inc.
28  * All rights reserved.
29  */
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI" 	/* SVr4.0 1.7	*/
32 
33 #pragma weak	elf_getarhdr = _elf_getarhdr
34 
35 
36 #include <ar.h>
37 #include "syn.h"
38 #include "libelf.h"
39 #include "decl.h"
40 #include "member.h"
41 #include "msg.h"
42 
43 
44 Elf_Arhdr *
45 elf_getarhdr(Elf * elf)
46 {
47 	Member *	mh;
48 	Elf_Arhdr *	rc;
49 
50 	if (elf == 0)
51 		return (0);
52 	ELFRLOCK(elf)
53 	if ((mh = elf->ed_armem) == 0) {
54 		ELFUNLOCK(elf)
55 		_elf_seterr(EREQ_AR, 0);
56 		return (0);
57 	}
58 	if (mh->m_err != 0) {
59 		ELFUNLOCK(elf);
60 		/*LINTED*/
61 		_elf_seterr((Msg)mh->m_err, 0);
62 		return (0);
63 	}
64 	rc = &elf->ed_armem->m_hdr;
65 	ELFUNLOCK(elf)
66 	return (rc);
67 }
68