contrib/randstat.c

   1
   2
   3 #include <sys/fcntl.h>
   4 #include <sys/ioctl.h>
   5 #include <sys/poll.h>
   6 #include <linux/types.h>
   7 #include <linux/random.h>
   8 #include <unistd.h>
   9 #include <stdio.h>
  10 #include <string.h>
  11
  12 int main(int argc, char **argv)
  13 {
  14         int random_fd;
  15         int ent_count;
  16
  17         random_fd = open("/dev/random", O_RDONLY);
  18
  19         if (random_fd < 0)
  20                 return 1;
  21
  22         if (ioctl(random_fd, RNDGETENTCNT, &ent_count) != 0)
  23                 return 1;
  24
  25         printf("%d\n", ent_count);
  26
  27         return 0;
  28 }
  29