1 /*-
2 * Copyright (c) 2004 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/9/tools/regression/sockets/socketpair/socketpair.c 168278 2007-04-02 19:15:47Z jhb $
27 */
28
29 #include <sys/types.h>
30 #include <sys/socket.h>
31
32 #include <errno.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <unistd.h>
37
38 /*
39 * Open, then close a set of UNIX domain socket pairs for datagram and
40 * stream.
41 *
42 * Confirm that we can't open INET datagram or stream socket pairs.
43 *
44 * More tests should be added, including confirming that sending on either
45 * endpoint results in data at the other, that the right kind of socket was
46 * created (stream vs. datagram), and that message boundaries fall in the
47 * right places.
48 */
49 int
main(int argc,char * argv[])50 main(int argc, char *argv[])
51 {
52 int fd1, fd2, fd3;
53 int sv[2];
54
55 /*
56 * UNIX domain socket pair, datagram.
57 */
58 if (socketpair(PF_UNIX, SOCK_DGRAM, 0, sv) != 0) {
59 fprintf(stderr, "socketpair(PF_UNIX, SOCK_DGRAM): %s\n",
60 strerror(errno));
61 fprintf(stderr, "FAIL\n");
62 exit(-1);
63 }
64 if (close(sv[0]) != 0) {
65 fprintf(stderr, "socketpair(PF_UNIX, SOCK_DGRAM) close 0: %s\n",
66 strerror(errno));
67 fprintf(stderr, "FAIL\n");
68 exit(-1);
69 }
70 if (close(sv[1]) != 0) {
71 fprintf(stderr, "socketpair(PF_UNIX, SOCK_DGRAM) close 1: %s\n",
72 strerror(errno));
73 fprintf(stderr, "FAIL\n");
74 exit(-1);
75 }
76
77 /*
78 * UNIX domain socket pair, stream.
79 */
80 if (socketpair(PF_UNIX, SOCK_STREAM, 0, sv) != 0) {
81 fprintf(stderr, "socketpair(PF_UNIX, SOCK_STREAM): %s\n",
82 strerror(errno));
83 fprintf(stderr, "FAIL\n");
84 exit(-1);
85 }
86 if (close(sv[0]) != 0) {
87 fprintf(stderr, "socketpair(PF_UNIX, SOCK_STREAM) close 0: %s\n",
88 strerror(errno));
89 fprintf(stderr, "FAIL\n");
90 exit(-1);
91 }
92 if (close(sv[1]) != 0) {
93 fprintf(stderr, "socketpair(PF_UNIX, SOCK_STREAM) close 1: "
94 "%s\n", strerror(errno));
95 fprintf(stderr, "FAIL\n");
96 exit(-1);
97 }
98
99 /*
100 * Confirm that PF_INET datagram socket pair creation fails.
101 */
102 if (socketpair(PF_INET, SOCK_DGRAM, 0, sv) == 0) {
103 fprintf(stderr, "socketpair(PF_INET, SOCK_DGRAM): opened\n");
104 fprintf(stderr, "FAIL\n");
105 exit(-1);
106 }
107 if (errno != EOPNOTSUPP) {
108 fprintf(stderr, "socketpair(PF_INET, SOCK_DGRAM): %s\n",
109 strerror(errno));
110 fprintf(stderr, "FAIL\n");
111 }
112
113 /*
114 * Confirm that PF_INET stream socket pair creation fails.
115 */
116 if (socketpair(PF_INET, SOCK_STREAM, 0, sv) == 0) {
117 fprintf(stderr, "socketpair(PF_INET, SOCK_STREAM): opened\n");
118 fprintf(stderr, "FAIL\n");
119 exit(-1);
120 }
121 if (errno != EOPNOTSUPP) {
122 fprintf(stderr, "socketpair(PF_INET, SOCK_STREAM): %s\n",
123 strerror(errno));
124 fprintf(stderr, "FAIL\n");
125 }
126
127 /*
128 * Check for sequential fd allocation, and give up early if not.
129 */
130 fd1 = dup(STDIN_FILENO);
131 fd2 = dup(STDIN_FILENO);
132 if (fd2 != fd1 + 1) {
133 fprintf(stderr, "Non-sequential fd allocation\n");
134 fprintf(stderr, "FAIL\n");
135 exit(-1);
136 }
137
138 /* Allocate a socketpair using a bad destination address. */
139 if (socketpair(PF_UNIX, SOCK_DGRAM, 0, NULL) == 0) {
140 fprintf(stderr, "socketpair(PF_UNIX, SOCK_DGRAM, NULL): opened\n");
141 fprintf(stderr, "FAIL\n");
142 exit(-1);
143 }
144 if (errno != EFAULT) {
145 fprintf(stderr, "socketpair(PF_UNIX, SOCK_DGRAM, NULL): %s\n",
146 strerror(errno));
147 fprintf(stderr, "FAIL\n");
148 exit(-1);
149 }
150
151 /* Allocate a file descriptor and make sure it's fd2+1. */
152 fd3 = dup(STDIN_FILENO);
153 if (fd3 != fd2 + 1) {
154 fprintf(stderr, "socketpair(..., NULL) allocated descriptors\n");
155 fprintf(stderr, "FAIL\n");
156 exit(-1);
157 }
158
159 fprintf(stderr, "PASS\n");
160 exit(0);
161 }
162