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 #include <sys/crc32.h> 28 29 static unsigned int crc32_tab[] = { CRC32_TABLE }; 30 31 /* 32 * Return a 32-bit CRC of the contents of the buffer. 33 * 34 * The seed is 0xffffffff and the result is XORed with 0xffffffff 35 * because this is what the Itanium firmware expects. 36 */ 37 unsigned int 38 efi_crc32(const unsigned char *s, unsigned int len) 39 { 40 unsigned int crc32val; 41 42 CRC32(crc32val, s, len, -1U, crc32_tab); 43 44 return (crc32val ^ -1U); 45 } 46