1 /* 2 * crc16.h - CRC-16 routine 3 * 4 * Implements the standard CRC-16: 5 * Width 16 6 * Poly 0x8005 (x16 + x15 + x2 + 1) 7 * Init 0 8 * 9 * Copyright (c) 2005 Ben Gardner <bgardner (at) wabtec.com> 10 * 11 * This source code is licensed under the GNU General Public License, 12 * Version 2. See the file COPYING for more details. 13 */ 14 15 #ifndef __CRC16_H 16 #define __CRC16_H 17 18 /* for an unknown reason, PPC treats __u16 as signed and keeps doing sign 19 * extension on the value. Instead, use only the low 16 bits of an 20 * unsigned int for holding the CRC value to avoid this. 21 */ 22 typedef unsigned int crc16_t; 23 24 extern crc16_t ext2fs_crc16(crc16_t crc, const void *buffer, unsigned int len); 25 26 #endif /* __CRC16_H */ 27
