xref: /illumos-gate/usr/src/cmd/sgs/libelf/common/nextscn.c (revision 2a8bcb4e)

/*
 * 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);
}