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#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include "libelf.h"
33#include "decl.h"
34
35
36Elf_Cmd
37elf_next(Elf * elf)
38{
39	Elf	*parent;
40
41	if (elf == 0)
42		return (ELF_C_NULL);
43	ELFRLOCK(elf)
44	if ((parent = elf->ed_parent) == 0) {
45		ELFUNLOCK(elf);
46		return (ELF_C_NULL);
47	}
48	ELFWLOCK(parent)
49	if (elf->ed_siboff >= parent->ed_fsz) {
50		ELFUNLOCK(parent)
51		ELFUNLOCK(elf);
52		return (ELF_C_NULL);
53	}
54
55	parent->ed_nextoff = elf->ed_siboff;
56	ELFUNLOCK(parent)
57	ELFUNLOCK(elf);
58	return (ELF_C_READ);
59}
60