blob: db781052758d3774b42cb891b86b09320e3d95d5 [file] [log] [blame]
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#define BUF_SIZE 256
static __attribute__((noinline))
void urandom_read(int fd, int count)
{
char buf[BUF_SIZE];
int i;
for (i = 0; i < count; ++i)
read(fd, buf, BUF_SIZE);
}
int main(int argc, char *argv[])
{
int fd = open("/dev/urandom", O_RDONLY);
int count = 4;
if (fd < 0)
return 1;
if (argc == 2)
count = atoi(argv[1]);
urandom_read(fd, count);
close(fd);
return 0;
}