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 
49 static void
50 connected(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 
58 static void
59 run(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 __FreeBSD__
67 	closefrom(3);
68 #else
69 	ATF_REQUIRE(closefrom(3) != -1);
70 #endif
71 
72 	ATF_REQUIRE(socketpair(domain, type | flags, 0, fd) == 0);
73 
74 	ATF_REQUIRE(fd[0] == 3);
75 	ATF_REQUIRE(fd[1] == 4);
76 
77 	connected(fd[0]);
78 	connected(fd[1]);
79 
80 	if (flags & SOCK_CLOEXEC) {
81 		ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) != 0);
82 		ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) != 0);
83 	} else {
84 		ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) == 0);
85 		ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) == 0);
86 	}
87 
88 	if (flags & SOCK_NONBLOCK) {
89 		ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) != 0);
90 		ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) != 0);
91 	} else {
92 		ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) == 0);
93 		ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) == 0);
94 	}
95 
96 	ATF_REQUIRE(close(fd[0]) != -1);
97 	ATF_REQUIRE(close(fd[1]) != -1);
98 }
99 
100 ATF_TC(inet);
101 ATF_TC_HEAD(inet, tc)
102 {
103 	atf_tc_set_md_var(tc, "descr",
104 	    "socketpair(2) does not work in the PF_INET domain");
105 }
106 
107 ATF_TC_BODY(inet, tc)
108 {
109 	int fd[2];
110 
111 	ATF_REQUIRE_EQ(socketpair(PF_INET, SOCK_DGRAM, 0, fd), -1);
112 	ATF_REQUIRE_EQ(EOPNOTSUPP, errno);
113 	ATF_REQUIRE_EQ(socketpair(PF_INET, SOCK_STREAM, 0, fd), -1);
114 	ATF_REQUIRE_EQ(EOPNOTSUPP, errno);
115 }
116 
117 ATF_TC(null_sv);
118 ATF_TC_HEAD(null_sv, tc)
119 {
120 	atf_tc_set_md_var(tc, "descr",
121 	    "socketpair(2) should fail without return storage");
122 }
123 
124 ATF_TC_BODY(null_sv, tc)
125 {
126 	int fd;
127 
128 	closefrom(3);
129 	ATF_REQUIRE_EQ(socketpair(AF_UNIX, SOCK_DGRAM, 0, NULL), -1);
130 	ATF_REQUIRE_EQ(EFAULT, errno);
131 	fd = open("/", O_RDONLY);
132 	ATF_REQUIRE_EQ_MSG(fd, 3,
133 	    "socketpair(..., NULL) allocated descriptors");
134 }
135 
136 ATF_TC(socketpair_basic);
137 ATF_TC_HEAD(socketpair_basic, tc)
138 {
139 	atf_tc_set_md_var(tc, "descr", "A basic test of socketpair(2)");
140 }
141 
142 ATF_TC_BODY(socketpair_basic, tc)
143 {
144 	run(AF_UNIX, SOCK_DGRAM, 0);
145 }
146 
147 ATF_TC(socketpair_nonblock);
148 ATF_TC_HEAD(socketpair_nonblock, tc)
149 {
150 	atf_tc_set_md_var(tc, "descr", "A non-blocking test of socketpair(2)");
151 }
152 
153 ATF_TC_BODY(socketpair_nonblock, tc)
154 {
155 	run(AF_UNIX, SOCK_DGRAM, SOCK_NONBLOCK);
156 }
157 
158 ATF_TC(socketpair_cloexec);
159 ATF_TC_HEAD(socketpair_cloexec, tc)
160 {
161 	atf_tc_set_md_var(tc, "descr", "A close-on-exec of socketpair(2)");
162 }
163 
164 ATF_TC_BODY(socketpair_cloexec, tc)
165 {
166 	run(AF_UNIX, SOCK_DGRAM, SOCK_CLOEXEC);
167 }
168 
169 ATF_TC(socketpair_stream);
170 ATF_TC_HEAD(socketpair_stream, tc)
171 {
172 	atf_tc_set_md_var(tc, "descr", "A stream-oriented socketpair(2)");
173 }
174 
175 ATF_TC_BODY(socketpair_stream, tc)
176 {
177 	run(AF_UNIX, SOCK_STREAM, 0);
178 }
179 
180 ATF_TP_ADD_TCS(tp)
181 {
182 
183 	ATF_TP_ADD_TC(tp, inet);
184 	ATF_TP_ADD_TC(tp, null_sv);
185 	ATF_TP_ADD_TC(tp, socketpair_basic);
186 	ATF_TP_ADD_TC(tp, socketpair_nonblock);
187 	ATF_TP_ADD_TC(tp, socketpair_cloexec);
188 	ATF_TP_ADD_TC(tp, socketpair_stream);
189 
190 	return atf_no_error();
191 }
192