entropy.c

   1 #include <stdio.h>
   2
   3 #include "util.h"
   4
   5 const char *
   6 entropy(void)
   7 {
   8         int num;
   9
  10         return (pscanf("/proc/sys/kernel/random/entropy_avail", "%d", &num) == 1) ?
  11                        bprintf("%d", num) : NULL;
  12 }