components/entropy.c

   1 /* See LICENSE file for copyright and license details. */
   2 #ifdef __linux__
   3 #include <stdio.h>
   4
   5 #include "../util.h"
   6
   7 const char *
   8 entropy(void)
   9 {
  10         int num;
  11
  12         return (pscanf("/proc/sys/kernel/random/entropy_avail", "%d", &num) == 1) ?
  13                        bprintf("%d", num) : NULL;
  14 }
  15 #endif