citadel/crc16.h

   1 /****************************************************************************
   2
   3   Filename:     crc16.h
   4   Description:  Cyclic Redundancy Check 16 functions
   5   Created:      24-Feb-1999
   6
   7   Copyright (c) 2002-2003, Indigo Systems Corporation
   8   All rights reserved.
   9
  10   Redistribution and use in source and binary forms, with or without
  11   modification, are permitted provided that the following conditions are met:
  12
  13   Redistributions of source code must retain the above copyright notice, this
  14   list of conditions and the following disclaimer.
  15
  16   Redistributions in binary form must reproduce the above copyright notice,
  17   this list of conditions and the following disclaimer in the documentation
  18   and/or other materials provided with the distribution.
  19
  20   Neither the name of the Indigo Systems Corporation nor the names of its
  21   contributors may be used to endorse or promote products derived from this
  22   software without specific prior written permission.
  23
  24   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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  33   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  34   THE POSSIBILITY OF SUCH DAMAGE.
  35
  36 ****************************************************************************/
  37
  38 #define _CRC16_BYTES    1               /* ig */
  39
  40 #ifndef __CRC16_H__
  41 #define __CRC16_H__
  42
  43 #ifdef __cplusplus
  44 extern "C"
  45 {
  46 #endif
  47
  48 typedef unsigned short CRC16;
  49
  50 #ifdef _OPT_SIZE
  51     int ByteCRC16(int value, int crcin);
  52 #else
  53     CRC16 CalcCRC16Words(unsigned int count, short *buffer);
  54 #endif
  55
  56 #ifdef _CRC16_BYTES
  57     CRC16 CalcCRC16Bytes(unsigned int count, char *buffer);
  58 #endif
  59
  60 #ifdef __cplusplus
  61 }
  62 #endif
  63
  64 #endif /* __CRC16_H__ */
  65
  66
  67