1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2018 Alan Somers
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29#include <errno.h>
30#include <fcntl.h>
31#include <pthread.h>
32#include <signal.h>
33#include <sys/socket.h>
34#include <sys/un.h>
35
36#include <stdio.h>
37
38#include <atf-c.h>
39
40static void
41do_socketpair(int *sv)
42{
43	int s;
44
45	s = socketpair(PF_LOCAL, SOCK_STREAM, 0, sv);
46	ATF_REQUIRE_EQ(0, s);
47	ATF_REQUIRE(sv[0] >= 0);
48	ATF_REQUIRE(sv[1] >= 0);
49	ATF_REQUIRE(sv[0] != sv[1]);
50}
51
52/* getpeereid(3) should work with stream sockets created via socketpair(2) */
53ATF_TC_WITHOUT_HEAD(getpeereid);
54ATF_TC_BODY(getpeereid, tc)
55{
56	int sv[2];
57	uid_t real_euid, euid;
58	gid_t real_egid, egid;
59
60	real_euid = geteuid();
61	real_egid = getegid();
62
63	do_socketpair(sv);
64
65	ATF_REQUIRE_EQ(0, getpeereid(sv[0], &euid, &egid));
66	ATF_CHECK_EQ(real_euid, euid);
67	ATF_CHECK_EQ(real_egid, egid);
68
69	ATF_REQUIRE_EQ(0, getpeereid(sv[1], &euid, &egid));
70	ATF_CHECK_EQ(real_euid, euid);
71	ATF_CHECK_EQ(real_egid, egid);
72
73	close(sv[0]);
74	close(sv[1]);
75}
76
77/* Sending zero bytes should succeed (once regressed in aba79b0f4a3f). */
78ATF_TC_WITHOUT_HEAD(send_0);
79ATF_TC_BODY(send_0, tc)
80{
81	int sv[2];
82
83	do_socketpair(sv);
84	ATF_REQUIRE(send(sv[0], sv, 0, 0) == 0);
85	close(sv[0]);
86	close(sv[1]);
87}
88
89
90ATF_TP_ADD_TCS(tp)
91{
92	ATF_TP_ADD_TC(tp, getpeereid);
93	ATF_TP_ADD_TC(tp, send_0);
94
95	return atf_no_error();
96}
97