1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #include <sys/crc32.h>
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate static unsigned int crc32_tab[] = { CRC32_TABLE };
30*7c478bd9Sstevel@tonic-gate 
31*7c478bd9Sstevel@tonic-gate /*
32*7c478bd9Sstevel@tonic-gate  * Return a 32-bit CRC of the contents of the buffer.
33*7c478bd9Sstevel@tonic-gate  *
34*7c478bd9Sstevel@tonic-gate  * The seed is 0xffffffff and the result is XORed with 0xffffffff
35*7c478bd9Sstevel@tonic-gate  * because this is what the Itanium firmware expects.
36*7c478bd9Sstevel@tonic-gate  */
37*7c478bd9Sstevel@tonic-gate unsigned int
efi_crc32(const unsigned char * s,unsigned int len)38*7c478bd9Sstevel@tonic-gate efi_crc32(const unsigned char *s, unsigned int len)
39*7c478bd9Sstevel@tonic-gate {
40*7c478bd9Sstevel@tonic-gate 	unsigned int crc32val;
41*7c478bd9Sstevel@tonic-gate 
42*7c478bd9Sstevel@tonic-gate 	CRC32(crc32val, s, len, -1U, crc32_tab);
43*7c478bd9Sstevel@tonic-gate 
44*7c478bd9Sstevel@tonic-gate 	return (crc32val ^ -1U);
45*7c478bd9Sstevel@tonic-gate }
46