seed48.c revision 92986 
1/*
2 * Copyright (c) 1993 Martin Birgmeier
3 * All rights reserved.
4 *
5 * You may redistribute unmodified or modified versions of this source
6 * code provided that the above copyright notice and this and the
7 * following conditions are retained.
8 *
9 * This software is provided ``as is'', and comes with no warranties
10 * of any kind. I shall in no event be liable for anything that happens
11 * to anyone/anything when using this software.
12 */
13
14#include <sys/cdefs.h>
15__FBSDID("$FreeBSD: head/lib/libc/gen/seed48.c 92986 2002-03-22 21:53:29Z obrien $");
16
17#include "rand48.h"
18
19extern unsigned short _rand48_seed[3];
20extern unsigned short _rand48_mult[3];
21extern unsigned short _rand48_add;
22
23unsigned short *
24seed48(unsigned short xseed[3])
25{
26	static unsigned short sseed[3];
27
28	sseed[0] = _rand48_seed[0];
29	sseed[1] = _rand48_seed[1];
30	sseed[2] = _rand48_seed[2];
31	_rand48_seed[0] = xseed[0];
32	_rand48_seed[1] = xseed[1];
33	_rand48_seed[2] = xseed[2];
34	_rand48_mult[0] = RAND48_MULT_0;
35	_rand48_mult[1] = RAND48_MULT_1;
36	_rand48_mult[2] = RAND48_MULT_2;
37	_rand48_add = RAND48_ADD;
38	return sseed;
39}
40