xref: /illumos-gate/usr/src/test/libc-tests/tests/random/arc4random.c (revision 45ede40b2394db7967e59f19288fae9b62efd4aa)
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 }
41