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/*
integrit - file integrity verification system
Copyright (C) 2000, 2001 Ed L. Cashin
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 2
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* There are public domain versions of cdb.c, cdb.h, cdb_make.c,
* cdb_make.h, and cdb_hash.c included in cdb-0.75 by Dan Bernstein.
*
* These files are distributed in integrit under the GPL and may have
* been modified from the versions in cdb-0.75.
*/
#include <config.h>
/* support platforms that don't yet conform to C99 */
#if HAVE_STDINT_H
#include <stdint.h>
#elif HAVE_INTTYPES_H
#include <inttypes.h>
#else
#error No stdint.h or inttypes.h found.
#endif
#include "cdb.h"
#include "cdb_hash.h"
uint32_t cdb_hashadd(uint32_t h,unsigned char c)
{
h += (h << 5);
return h ^ c;
}
uint32_t cdb_hash(char *buf,unsigned int len)
{
uint32_t h;
h = CDB_HASHSTART;
while (len) {
h = cdb_hashadd(h,*buf++);
--len;
}
return h;
}
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