1/*
2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "tests.h"
29#include <asm/unistd.h>
30
31#ifdef __NR_getrandom
32
33# include <stdio.h>
34# include <unistd.h>
35
36int
37main(void)
38{
39	unsigned char buf[4];
40
41	if (syscall(__NR_getrandom, buf, sizeof(buf) - 1, 0) != sizeof(buf) - 1)
42		perror_msg_and_skip("getrandom");
43	printf("getrandom(\"\\x%02x\\x%02x\\x%02x\", 3, 0) = 3\n",
44	       (int) buf[0], (int) buf[1], (int) buf[2]);
45
46	if (syscall(__NR_getrandom, buf, sizeof(buf), 1) != sizeof(buf))
47		perror_msg_and_skip("getrandom");
48	printf("getrandom(\"\\x%02x\\x%02x\\x%02x\"..., 4, GRND_NONBLOCK) = 4\n",
49	       (int) buf[0], (int) buf[1], (int) buf[2]);
50
51	if (syscall(__NR_getrandom, buf, sizeof(buf), 0x3003) != -1)
52		perror_msg_and_skip("getrandom");
53	printf("getrandom(%p, 4, GRND_NONBLOCK|GRND_RANDOM|0x3000) = "
54	       "-1 EINVAL (%m)\n", buf);
55
56	puts("+++ exited with 0 +++");
57	return 0;
58}
59
60#else
61
62SKIP_MAIN_UNDEFINED("__NR_getrandom")
63
64#endif
65