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1.1 root 1: /* crc32.h */
2:
3: /* 32-bit CRC table and calculation macro */
4:
5: /* $Id: crc32.h,v 1.5 2003/10/15 02:51:26 rswindell Exp $ */
6:
7: /****************************************************************************
8: * @format.tab-size 4 (Plain Text/Source Code File Header) *
9: * @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) *
10: * *
11: * Copyright 2003 Rob Swindell - http://www.synchro.net/copyright.html *
12: * *
13: * This program is free software; you can redistribute it and/or *
14: * modify it under the terms of the GNU General Public License *
15: * as published by the Free Software Foundation; either version 2 *
16: * of the License, or (at your option) any later version. *
17: * See the GNU General Public License for more details: gpl.txt or *
18: * http://www.fsf.org/copyleft/gpl.html *
19: * *
20: * Anonymous FTP access to the most recent released source is available at *
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27: * cvs -d :pserver:[email protected]:/cvsroot/sbbs checkout src *
28: * *
29: * For Synchronet coding style and modification guidelines, see *
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31: * *
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33: * format) via e-mail to [email protected] *
34: * *
35: * Note: If this box doesn't appear square, then you need to fix your tabs. *
36: ****************************************************************************/
37:
38: #ifndef _CRC32_H_
39: #define _CRC32_H_
40:
41: #ifdef __cplusplus
42: extern "C" {
43: #endif
44:
45: extern long crc32tbl[];
46:
47: unsigned long crc32(char* buf, unsigned long len);
48:
49: #ifdef __cplusplus
50: }
51: #endif
52:
53: #define ucrc32(ch,crc) (crc32tbl[(crc^(ch))&0xff]^(crc>>8))
54:
55: #endif /* Don't add anything after this line */
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