19 rader
352 B
C
19 rader
352 B
C
|
|
#include "rng.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
|
|
void randombytes(void *x, size_t l)
|
|
{
|
|
static int fd = -1;
|
|
ssize_t n;
|
|
if (fd < 0 && 0 > (fd = open("/dev/urandom", O_RDONLY)))
|
|
exit(1);
|
|
for (size_t i = 0; i < l; i += n)
|
|
if (0 >= (n = read(fd, (char *) x + i, l - i)))
|
|
exit(2);
|
|
}
|
|
|