1/*	$NetBSD: seed48.c,v 1.8 2005/06/12 05:21:28 lukem Exp $	*/
2
3/*
4 * Copyright (c) 1993 Martin Birgmeier
5 * All rights reserved.
6 *
7 * You may redistribute unmodified or modified versions of this source
8 * code provided that the above copyright notice and this and the
9 * following conditions are retained.
10 *
11 * This software is provided ``as is'', and comes with no warranties
12 * of any kind. I shall in no event be liable for anything that happens
13 * to anyone/anything when using this software.
14 */
15
16#include <sys/cdefs.h>
17#if defined(LIBC_SCCS) && !defined(lint)
18__RCSID("$NetBSD: seed48.c,v 1.8 2005/06/12 05:21:28 lukem Exp $");
19#endif /* LIBC_SCCS and not lint */
20
21#include "namespace.h"
22
23#include <assert.h>
24
25#include "rand48.h"
26
27#ifdef __weak_alias
28__weak_alias(seed48,_seed48)
29#endif
30
31unsigned short *
32seed48(unsigned short xseed[3])
33{
34	static unsigned short sseed[3];
35
36	_DIAGASSERT(xseed != NULL);
37
38	sseed[0] = __rand48_seed[0];
39	sseed[1] = __rand48_seed[1];
40	sseed[2] = __rand48_seed[2];
41	__rand48_seed[0] = xseed[0];
42	__rand48_seed[1] = xseed[1];
43	__rand48_seed[2] = xseed[2];
44	__rand48_mult[0] = RAND48_MULT_0;
45	__rand48_mult[1] = RAND48_MULT_1;
46	__rand48_mult[2] = RAND48_MULT_2;
47	__rand48_add = RAND48_ADD;
48	return sseed;
49}
50