xref: /freebsd-14-stable/tests/sys/kern/unix_socketpair_test.c (revision 1d386b48a555f61cb7325543adbbb5c3f3407a66)
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 
40 /* getpeereid(3) should work with stream sockets created via socketpair(2) */
41 ATF_TC_WITHOUT_HEAD(getpeereid);
ATF_TC_BODY(getpeereid,tc)42 ATF_TC_BODY(getpeereid, tc)
43 {
44 	int sv[2];
45 	int s;
46 	uid_t real_euid, euid;
47 	gid_t real_egid, egid;
48 
49 	real_euid = geteuid();
50 	real_egid = getegid();
51 
52 	s = socketpair(PF_LOCAL, SOCK_STREAM, 0, sv);
53 	ATF_CHECK_EQ(0, s);
54 	ATF_CHECK(sv[0] >= 0);
55 	ATF_CHECK(sv[1] >= 0);
56 	ATF_CHECK(sv[0] != sv[1]);
57 
58 	ATF_REQUIRE_EQ(0, getpeereid(sv[0], &euid, &egid));
59 	ATF_CHECK_EQ(real_euid, euid);
60 	ATF_CHECK_EQ(real_egid, egid);
61 
62 	ATF_REQUIRE_EQ(0, getpeereid(sv[1], &euid, &egid));
63 	ATF_CHECK_EQ(real_euid, euid);
64 	ATF_CHECK_EQ(real_egid, egid);
65 
66 	close(sv[0]);
67 	close(sv[1]);
68 }
69 
70 
ATF_TP_ADD_TCS(tp)71 ATF_TP_ADD_TCS(tp)
72 {
73 	ATF_TP_ADD_TC(tp, getpeereid);
74 
75 	return atf_no_error();
76 }
77