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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2002 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/crc32.h> 30 31 static unsigned int crc32_tab[] = { CRC32_TABLE }; 32 33 /* 34 * Return a 32-bit CRC of the contents of the buffer. 35 * 36 * The seed is 0xffffffff and the result is XORed with 0xffffffff 37 * because this is what the Itanium firmware expects. 38 */ 39 unsigned int 40 efi_crc32(const unsigned char *s, unsigned int len) 41 { 42 unsigned int crc32val; 43 44 CRC32(crc32val, s, len, -1U, crc32_tab); 45 46 return (crc32val ^ -1U); 47 } 48