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checksum.h

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00001 /*= -*- c-basic-offset: 4; indent-tabs-mode: nil; -*-
00002  *
00003  * librsync -- the library for network deltas
00004  * $Id: checksum.h,v 1.1.1.1 2002/01/25 22:15:09 kergoth Exp $
00005  * 
00006  * Copyright (C) 2000, 2001 by Martin Pool <mbp@samba.org>
00007  * 
00008  * This program is free software; you can redistribute it and/or modify
00009  * it under the terms of the GNU Lesser General Public License as published by
00010  * the Free Software Foundation; either version 2.1 of the License, or
00011  * (at your option) any later version.
00012  * 
00013  * This program is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016  * GNU Lesser General Public License for more details.
00017  * 
00018  * You should have received a copy of the GNU Lesser General Public License
00019  * along with this program; if not, write to the Free Software
00020  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00021  */
00022 
00023 rs_weak_sum_t rs_calc_weak_sum(void const *buf1, int len);
00024 
00025 void rs_calc_strong_sum(void const *buf, size_t buf_len, rs_strong_sum_t *);
00026 
00027 /* We should make this something other than zero to improve the
00028  * checksum algorithm: tridge suggests a prime number. */
00029 #define RS_CHAR_OFFSET 31
00030 

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