windows-xp/Source/XPSP1/NT/inetsrv/iis/staxinc/crchash.h

/*++

Copyright (c) 1995  Microsoft Corporation

Module Name:

    crchash.h

Abstract:
	CRC Hash function
*/

#ifndef __CRCHASH_H
#define __CRCHASH_H

#define POLY 0x48000000L    /* 31-bit polynomial (avoids sign problems) */

extern long CrcTable[128];
void crcinit();

DWORD CRCHash(IN const BYTE * Key, IN DWORD KeyLength);

DWORD CRCHashNoCase(IN const BYTE * Key, IN DWORD KeyLength);

DWORD CRCHashWithPrecompute(IN DWORD	PreComputedHash,	IN const BYTE * Key, IN DWORD KeyLength);

DWORD
CRCChainingHash(	DWORD	sum,
					const	BYTE*	(&Key), 
					BYTE	bTerm
					) ;


#endif