1/*
2 * Check decoding of sockaddr related arguments of recvfrom syscall.
3 *
4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#define TEST_SYSCALL_NAME recvfrom
31#define TEST_SYSCALL_PREPARE send_un()
32#define PREFIX_S_ARGS	, recv_buf, 1, 0
33#define PREFIX_S_STR	", \"A\", 1, 0"
34#define PREFIX_F_ARGS	, 0, 1, 0
35#define PREFIX_F_STR	", NULL, 1, 0"
36static void send_un(void);
37static char recv_buf[1];
38#include "sockname.c"
39
40static int cfd;
41
42static void
43send_un(void)
44{
45	if (send(cfd, "A", 1, 0) != 1)
46		perror_msg_and_skip("send");
47}
48
49int
50main(void)
51{
52	cfd = socket(AF_UNIX, SOCK_STREAM, 0);
53	int lfd = socket(AF_UNIX, SOCK_STREAM, 0);
54	if (cfd < 0 || lfd < 0)
55		perror_msg_and_skip("socket");
56
57	struct sockaddr_un un = {
58		.sun_family = AF_UNIX,
59		.sun_path = TEST_SOCKET ".send"
60	};
61
62	(void) unlink(un.sun_path);
63	if (bind(cfd, (const void *) &un, sizeof(un)))
64		perror_msg_and_skip("bind");
65	(void) unlink(un.sun_path);
66
67	un.sun_path[sizeof(TEST_SOCKET) - 1] = '\0';
68	(void) unlink(un.sun_path);
69
70	if (bind(lfd, (const void *) &un, sizeof(un)))
71		perror_msg_and_skip("bind");
72
73	if (listen(lfd, 1))
74		perror_msg_and_skip("listen");
75
76	if (connect(cfd, (const void *) &un, sizeof(un)))
77		perror_msg_and_skip("connect");
78
79	int afd = accept(lfd, 0, 0);
80	if (afd < 0)
81		perror_msg_and_skip("accept");
82
83	(void) unlink(un.sun_path);
84
85	test_sockname_syscall(afd);
86
87	puts("+++ exited with 0 +++");
88	return 0;
89}
90