blob: 723fc6346fbe800d66e272935d4895bbffc580ce (
plain) (
blame)
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
39
40
41
|
/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
void *
libsimple_random_bytes(uintmax_t (*rng)(size_t bits, void *user), void *user, void *buffer, size_t bytes)
{
char *buf = buffer;
uintmax_t rnd;
while (bytes >= sizeof(uintmax_t)) {
rnd = (*rng)(sizeof(uintmax_t) * 8U, user);
memcpy(buf, &rnd, sizeof(uintmax_t));
bytes -= sizeof(uintmax_t);
buf = &buf[sizeof(uintmax_t)];
}
if (bytes) {
rnd = (*rng)(bytes * 8U, user);
while (bytes) {
*buf++ = (char)(rnd & 255U);
bytes--;
rnd >>= 8;
}
}
return buf;
}
#else
#include "test.h"
int
main(void)
{
return 0;
}
#endif
|