calc.h

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/*
    clsync - file tree sync utility based on inotify/kqueue
 
    Copyright (C) 2014  Dmitry Yu Okunev <dyokunev@ut.mephi.ru> 0x8E30679C
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include <stdint.h>
 
#ifdef HAVE_MHASH
#include <mhash.h>
 
#include "error.h"
 
static inline uint32_t adler32_calc ( const unsigned char *const data, uint32_t len )
{
    uint32_t adler32;
    debug ( 70, "%p, %i -> mhash", data, len );
    MHASH td = mhash_init ( MHASH_ADLER32 );
    mhash ( td, data, len );
    mhash_deinit ( td, &adler32 );
    return adler32;
}
#else
extern uint32_t adler32_calc ( const unsigned char *const data, uint32_t len );
#endif