wsutil/crc8.h

   1 /* crc8.h
   2  * Declaration of CRC-8 routine and tables
   3  *
   4  * 2011 Roland Knall <rknall@gmail.com>
   5  *
   6  * $Id$
   7  *
   8  * Wireshark - Network traffic analyzer
   9  * By Gerald Combs <gerald@wireshark.org>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  25  */
  26
  27 #ifndef __CRC8_H__
  28 #define __CRC8_H__
  29
  30
  31 #include "ws_symbol_export.h"
  32
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif /* __cplusplus */
  36
  37 /** Calculates a CRC8 checksum for the given buffer with the polynom
  38  *  0x2F using the precompiled CRC table
  39  * @param buf a pointer to a buffer of the given length
  40  * @param len the length of the given buffer
  41  * @param seed The seed to use.
  42  * @return the CRC8 checksum for the buffer
  43  */
  44 WS_DLL_PUBLIC guint8 crc8_0x2F(guint8 *buf, guint32 len, guint8 seed);
  45
  46 #ifdef __cplusplus
  47 }
  48 #endif /* __cplusplus */
  49
  50 #endif /* crc8.h */