root/usr/src/cmd/sgs/libelf/common/nextscn.c
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (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 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */

#include "libelf.h"
#include "decl.h"


Elf_Scn *
elf_nextscn(Elf * elf, Elf_Scn * scn)
{
        Elf_Scn *       ret_scn = 0;

        if (elf == 0)
                return (0);
        if (scn != 0) {
                READLOCKS(elf, scn)
                ret_scn = scn->s_next;
                READUNLOCKS(elf, scn)
        } else {
                ELFWLOCK(elf)
                if (elf->ed_hdscn == 0) {
                        if (elf->ed_hdscn == 0)
                                (void) _elf_cook(elf);
                }
                if ((scn = elf->ed_hdscn) != 0)
                        ret_scn = scn->s_next;
                ELFUNLOCK(elf)
        }
        return (ret_scn);
}