rawfile.c   [plain text]

/*
 * 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	"@(#)rawfile.c	1.9	05/06/08 SMI" 	/* SVr4.0 1.4	*/

// XXX_PRAGMA_WEAK #pragma weak	elf_rawfile = _elf_rawfile


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


char *
elf_rawfile(Elf * elf, size_t * ptr)
{
	register size_t	sz;
	char		*p = 0;

	if (elf == 0) {
		if (ptr != 0)
			*ptr = 0;
		return (0);
	}

	ELFWLOCK(elf)
	if ((sz = elf->ed_fsz) == 0) {
		if (ptr != 0)
			*ptr = 0;
		ELFUNLOCK(elf)
		return (0);
	}

	if (elf->ed_raw != 0)
		p = elf->ed_raw;
	else if (elf->ed_status == ES_COOKED) {
		if ((p = _elf_read(elf->ed_fd, elf->ed_baseoff, sz)) != 0) {
			elf->ed_raw = p;
			elf->ed_myflags |= EDF_RAWALLOC;
		} else
			sz = 0;
	} else {
		p = elf->ed_raw = elf->ed_ident;
		elf->ed_status = ES_FROZEN;
		if (_elf_vm(elf, (size_t)0, elf->ed_fsz) != OK_YES) {
			p = 0;
			sz = 0;
		}
	}
	if (ptr != 0)
		*ptr = sz;
	ELFUNLOCK(elf)
	return (p);
}