1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/*
** Copyright 2002 Double Precision, Inc.
** See COPYING for distribution information.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <ctype.h>
#include <string.h>
#include "random128.h"
static int nyb(char c)
{
static const char xdigit[]="0123456789ABCDEF";
const char *p=strchr(xdigit, c);
if (p)
return (p-xdigit);
return 0;
}
void random128_binary(random128binbuf *bytes)
{
char randombuf[ 128 / 8 * 2 + 1];
int i;
strcpy(randombuf, random128());
for (i=0; i<128/8; i++)
(*bytes)[i]=(nyb(randombuf[i*2]) << 4) | nyb(randombuf[i*2+1]);
}
|
