Merge from vendor branch BZIP:
[dragonfly.git] / lib / libc / gen / seed48.c
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984263bc
MD
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 "rand48.h"
15
16extern unsigned short _rand48_seed[3];
17extern unsigned short _rand48_mult[3];
18extern unsigned short _rand48_add;
19
20unsigned short *
21seed48(unsigned short xseed[3])
22{
23 static unsigned short sseed[3];
24
25 sseed[0] = _rand48_seed[0];
26 sseed[1] = _rand48_seed[1];
27 sseed[2] = _rand48_seed[2];
28 _rand48_seed[0] = xseed[0];
29 _rand48_seed[1] = xseed[1];
30 _rand48_seed[2] = xseed[2];
31 _rand48_mult[0] = RAND48_MULT_0;
32 _rand48_mult[1] = RAND48_MULT_1;
33 _rand48_mult[2] = RAND48_MULT_2;
34 _rand48_add = RAND48_ADD;
35 return sseed;
36}