libelf/common/getarhdr.c

	getarhdr.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*  Copyright (c) 1988 AT&T */
/*    All Rights Reserved   */


/*
 * Copyright (c) 2000 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"    /* SVr4.0 1.7   */

#pragma weak    elf_getarhdr = _elf_getarhdr


#include <ar.h>
#include "syn.h"
#include "libelf.h"
#include "decl.h"
#include "member.h"
#include "msg.h"


Elf_Arhdr *
elf_getarhdr(Elf * elf)
{
    Member *    mh;
    Elf_Arhdr * rc;

    if (elf == 0)
        return (0);
    ELFRLOCK(elf)
    if ((mh = elf->ed_armem) == 0) {
        ELFUNLOCK(elf)
        _elf_seterr(EREQ_AR, 0);
        return (0);
    }
    if (mh->m_err != 0) {
        ELFUNLOCK(elf);
        /*LINTED*/
        _elf_seterr((Msg)mh->m_err, 0);
        return (0);
    }
    rc = &elf->ed_armem->m_hdr;
    ELFUNLOCK(elf)
    return (rc);
}