usr/src/test/libc-tests/tests/random/arc4random.c

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11
  12 /*
  13  * Copyright (c) 2015, Joyent, Inc.
  14  */
  15
  16 /*
  17  * Basic tests for the arc4random(3C) family of functions. They should always
  18  * succeed, let's make sure these do.
  19  */
  20
  21 #include <stdlib.h>
  22 #include <assert.h>
  23 #include <errno.h>
  24
  25 int
  26 main(void)
  27 {
  28         uint32_t ret;
  29         uint8_t buf[32];
  30
  31         (void) arc4random();
  32         ret = arc4random_uniform(100);
  33         assert(ret < 100);
  34         ret = arc4random_uniform(200);
  35         assert(ret < 200);
  36
  37         arc4random_buf(buf, sizeof (buf));
  38
  39         return (0);
  40 }