code / tomo-random

   1 // Logic for using system random numbers
   2 
   3 #pragma once
   4 
   5 #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
   6 #include <stdlib.h>
   7 static ssize_t getrandom(void *buf, size_t buflen, unsigned int flags) {
   8     (void)flags;
   9     arc4random_buf(buf, buflen);
  10     return buflen;
  11 }
  12 #elif defined(__linux__)
  13 // Use getrandom()
  14 #include <sys/random.h>
  15 #else
  16 #error "Unsupported platform for secure random number generation"
  17 #endif