File:  [ELWIX - Embedded LightWeight unIX -] / libaitcrc / inc / defs.h
Revision 1.7: download - view: text, annotated - select for diffs - revision graph
Wed Aug 29 09:00:44 2012 UTC (12 years, 3 months ago) by misho
Branches: MAIN
CVS tags: crc2_4, HEAD, CRC2_3
version 3.2

/*************************************************************************
* (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
*  by Michael Pounov <misho@openbsd-bg.org>
*
* $Author: misho $
* $Id: defs.h,v 1.7 2012/08/29 09:00:44 misho Exp $
*
**************************************************************************
The ELWIX and AITNET software is distributed under the following
terms:

All of the documentation and software included in the ELWIX and AITNET
Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>

Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
	by Michael Pounov <misho@elwix.org>.  All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
   must display the following acknowledgement:
This product includes software developed by Michael Pounov <misho@elwix.org>
ELWIX - Embedded LightWeight unIX and its contributors.
4. Neither the name of AITNET nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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SUCH DAMAGE.
*/
#ifndef __DEFS_H
#define __DEFS_H


#ifndef STRSIZ
#define STRSIZ			256
#endif

#define MAX_FLETCHER16_DIGEST	21
#define MAX_FLETCHER_DIGEST	360
#define MAX_ADLER_DIGEST	5552

#define POLY_CRC32		0xC0A0A0D5
#define INIT_BERNSTEIN		0x1505
#define INIT_FNV1		0x811c9dc5
#define POLY_FNV1		0x1000193
#define INIT_JENKINS32		0xDEADBEEF

#define ROT32(x, k)		(((x) << (k)) | ((x) >> (32 - (k))))
#define MIX32(a, b, c) \
do { \
	  a -= c;  a ^= ROT32(c, 4);  c += b; \
	  b -= a;  b ^= ROT32(a, 6);  a += c; \
	  c -= b;  c ^= ROT32(b, 8);  b += a; \
	  a -= c;  a ^= ROT32(c, 16); c += b; \
	  b -= a;  b ^= ROT32(a, 19); a += c; \
	  c -= b;  c ^= ROT32(b, 4);  b += a; \
} while (0)
#define FINAL32(a, b, c) \
do { \
	  c ^= b; c -= ROT32(b, 14); \
	  a ^= c; a -= ROT32(c, 11); \
	  b ^= a; b -= ROT32(a, 25); \
	  c ^= b; c -= ROT32(b, 16); \
	  a ^= c; a -= ROT32(c, 4);  \
	  b ^= a; b -= ROT32(a, 14); \
	  c ^= b; c -= ROT32(b, 24); \
} while (0)


inline void crc_SetErr(int eno, char *estr, ...);


extern const crcPoly_t crc_Poly[];


#endif

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