next.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) 1998 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5 */
#pragma weak elf_next = _elf_next
#include "syn.h"
#include "libelf.h"
#include "decl.h"
Elf_Cmd
elf_next(Elf * elf)
{
Elf *parent;
if (elf == 0)
return (ELF_C_NULL);
ELFRLOCK(elf)
if ((parent = elf->ed_parent) == 0) {
ELFUNLOCK(elf);
return (ELF_C_NULL);
}
ELFWLOCK(parent)
if (elf->ed_siboff >= parent->ed_fsz) {
ELFUNLOCK(parent)
ELFUNLOCK(elf);
return (ELF_C_NULL);
}
parent->ed_nextoff = elf->ed_siboff;
ELFUNLOCK(parent)
ELFUNLOCK(elf);
return (ELF_C_READ);
}