1/* $NetBSD: t_socketpair.c,v 1.2 2017/01/13 20:04:52 christos Exp $ */
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38#include <sys/cdefs.h>
39__RCSID("$NetBSD: t_socketpair.c,v 1.2 2017/01/13 20:04:52 christos Exp $");
40
41#include <atf-c.h>
42#include <fcntl.h>
43#include <unistd.h>
44#include <stdlib.h>
45#include <sys/socket.h>
46#include <sys/un.h>
47#include <errno.h>
48
49static void
50connected(int fd)
51{
52	struct sockaddr_un addr;
53	socklen_t len = (socklen_t)sizeof(addr);
54	ATF_REQUIRE(getpeername(fd, (struct sockaddr*)(void *)&addr,
55	    &len) == 0);
56}
57
58static void
59run(int domain, int type, int flags)
60{
61	int fd[2], i;
62
63	while ((i = open("/", O_RDONLY)) < 3)
64		ATF_REQUIRE(i != -1);
65
66#ifdef __NetBSD__
67	/* This check is harmful since it closes atf's output file */
68	ATF_REQUIRE(closefrom(3) != -1);
69#endif
70
71	ATF_REQUIRE(socketpair(domain, type | flags, 0, fd) == 0);
72
73#if __NetBSD__
74	/* This check is harmful since it requires closing atf's output file */
75	ATF_REQUIRE(fd[0] == 3);
76	ATF_REQUIRE(fd[1] == 4);
77#endif
78
79	connected(fd[0]);
80	connected(fd[1]);
81
82	if (flags & SOCK_CLOEXEC) {
83		ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) != 0);
84		ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) != 0);
85	} else {
86		ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) == 0);
87		ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) == 0);
88	}
89
90	if (flags & SOCK_NONBLOCK) {
91		ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) != 0);
92		ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) != 0);
93	} else {
94		ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) == 0);
95		ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) == 0);
96	}
97
98	ATF_REQUIRE(close(fd[0]) != -1);
99	ATF_REQUIRE(close(fd[1]) != -1);
100}
101
102ATF_TC(inet);
103ATF_TC_HEAD(inet, tc)
104{
105	atf_tc_set_md_var(tc, "descr",
106	    "socketpair(2) does not work in the PF_INET domain");
107}
108
109ATF_TC_BODY(inet, tc)
110{
111	int fd[2];
112
113	ATF_REQUIRE_EQ(socketpair(PF_INET, SOCK_DGRAM, 0, fd), -1);
114	ATF_REQUIRE_EQ(EOPNOTSUPP, errno);
115	ATF_REQUIRE_EQ(socketpair(PF_INET, SOCK_STREAM, 0, fd), -1);
116	ATF_REQUIRE_EQ(EOPNOTSUPP, errno);
117}
118
119ATF_TC(null_sv);
120ATF_TC_HEAD(null_sv, tc)
121{
122	atf_tc_set_md_var(tc, "descr",
123	    "socketpair(2) should fail without return storage");
124}
125
126ATF_TC_BODY(null_sv, tc)
127{
128	int fd;
129
130#ifdef __NetBSD__
131	/* This check is harmful since it closes atf's output file */
132	closefrom(3);
133#else
134	int lowfd = open("/", O_RDONLY);
135	ATF_REQUIRE(lowfd > 0);
136	ATF_REQUIRE_EQ(0, close(lowfd));
137#endif
138	ATF_REQUIRE_EQ(socketpair(AF_UNIX, SOCK_DGRAM, 0, NULL), -1);
139	ATF_REQUIRE_EQ(EFAULT, errno);
140	fd = open("/", O_RDONLY);
141#ifdef __NetBSD__
142	ATF_REQUIRE_EQ_MSG(fd, 3,
143	    "socketpair(..., NULL) allocated descriptors");
144#else
145	ATF_REQUIRE_EQ_MSG(fd, lowfd,
146	    "socketpair(..., NULL) allocated descriptors: fd=%d, lowfd=%d",
147	    fd, lowfd);
148#endif
149}
150
151ATF_TC(socketpair_basic);
152ATF_TC_HEAD(socketpair_basic, tc)
153{
154	atf_tc_set_md_var(tc, "descr", "A basic test of socketpair(2)");
155}
156
157ATF_TC_BODY(socketpair_basic, tc)
158{
159	run(AF_UNIX, SOCK_DGRAM, 0);
160}
161
162ATF_TC(socketpair_nonblock);
163ATF_TC_HEAD(socketpair_nonblock, tc)
164{
165	atf_tc_set_md_var(tc, "descr", "A non-blocking test of socketpair(2)");
166}
167
168ATF_TC_BODY(socketpair_nonblock, tc)
169{
170	run(AF_UNIX, SOCK_DGRAM, SOCK_NONBLOCK);
171}
172
173ATF_TC(socketpair_cloexec);
174ATF_TC_HEAD(socketpair_cloexec, tc)
175{
176	atf_tc_set_md_var(tc, "descr", "A close-on-exec of socketpair(2)");
177}
178
179ATF_TC_BODY(socketpair_cloexec, tc)
180{
181	run(AF_UNIX, SOCK_DGRAM, SOCK_CLOEXEC);
182}
183
184ATF_TC(socketpair_stream);
185ATF_TC_HEAD(socketpair_stream, tc)
186{
187	atf_tc_set_md_var(tc, "descr", "A stream-oriented socketpair(2)");
188}
189
190ATF_TC_BODY(socketpair_stream, tc)
191{
192	run(AF_UNIX, SOCK_STREAM, 0);
193}
194
195ATF_TP_ADD_TCS(tp)
196{
197
198	ATF_TP_ADD_TC(tp, inet);
199	ATF_TP_ADD_TC(tp, null_sv);
200	ATF_TP_ADD_TC(tp, socketpair_basic);
201	ATF_TP_ADD_TC(tp, socketpair_nonblock);
202	ATF_TP_ADD_TC(tp, socketpair_cloexec);
203	ATF_TP_ADD_TC(tp, socketpair_stream);
204
205	return atf_no_error();
206}
207