1/*
2 * Copyright (C) 2015 Cedric Hnyda ced.hnyda@gmail.com
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like.  Any license provided herein, whether implied or
15 * otherwise, applies only to this software file.  Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
18 *
19 */
20
21/*
22 * AUTHOR   : Cédric Hnyda
23 * DATE STARTED : 06/13/2015
24 *
25 *  Calls getrandom(2) with a NULL buffer and expects failure.
26 *
27 */
28
29#include "lapi/getrandom.h"
30#include "lapi/syscalls.h"
31#include "tst_test.h"
32
33static int modes[] = {0, GRND_RANDOM, GRND_NONBLOCK,
34		      GRND_RANDOM | GRND_NONBLOCK};
35
36static void verify_getrandom(unsigned int n)
37{
38	TEST(tst_syscall(__NR_getrandom, NULL, 100, modes[n]));
39
40	if (TEST_RETURN == -1) {
41		tst_res(TPASS | TTERRNO, "getrandom returned %ld",
42			TEST_RETURN);
43	} else {
44		tst_res(TFAIL | TTERRNO, "getrandom failed");
45	}
46}
47
48static struct tst_test test = {
49	.tcnt = ARRAY_SIZE(modes),
50	.test = verify_getrandom,
51};
52