1/*	$OpenBSD: seed48.c,v 1.6 2015/09/13 15:20:40 guenther Exp $ */
2/*
3 * Copyright (c) 1993 Martin Birgmeier
4 * All rights reserved.
5 *
6 * You may redistribute unmodified or modified versions of this source
7 * code provided that the above copyright notice and this and the
8 * following conditions are retained.
9 *
10 * This software is provided ``as is'', and comes with no warranties
11 * of any kind. I shall in no event be liable for anything that happens
12 * to anyone/anything when using this software.
13 */
14
15#include "rand48.h"
16
17unsigned short *
18seed48(unsigned short xseed[3])
19{
20	unsigned short *res;
21
22	res = seed48_deterministic(xseed);
23	__rand48_deterministic = 0;
24	return res;
25}
26
27unsigned short *
28seed48_deterministic(unsigned short xseed[3])
29{
30	static unsigned short sseed[3];
31
32	__rand48_deterministic = 1;
33	sseed[0] = __rand48_seed[0];
34	sseed[1] = __rand48_seed[1];
35	sseed[2] = __rand48_seed[2];
36	__rand48_seed[0] = xseed[0];
37	__rand48_seed[1] = xseed[1];
38	__rand48_seed[2] = xseed[2];
39	__rand48_mult[0] = RAND48_MULT_0;
40	__rand48_mult[1] = RAND48_MULT_1;
41	__rand48_mult[2] = RAND48_MULT_2;
42	__rand48_add = RAND48_ADD;
43	return sseed;
44}
45DEF_WEAK(seed48_deterministic);
46