1 /* $NetBSD: t_listen.c,v 1.5 2017/01/13 20:41:50 christos Exp $ */
2 /*
3 * Copyright (c) 2007 The NetBSD Foundation, Inc.
4 * All rights reserved.
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 THE NETBSD FOUNDATION, INC. AND
16 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
17 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
22 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
24 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/socket.h>
30 #include <atf-c.h>
31 #include <err.h>
32 #include <errno.h>
33 #include <fcntl.h>
34 #include <string.h>
35 #include <unistd.h>
36
37 #include <arpa/inet.h>
38 #include <netinet/in.h>
39
40 static const char *path = "listen";
41
42 ATF_TC_WITH_CLEANUP(listen_err);
ATF_TC_HEAD(listen_err,tc)43 ATF_TC_HEAD(listen_err, tc)
44 {
45 atf_tc_set_md_var(tc, "descr",
46 "Checks errors from listen(2) (PR standards/46150)");
47 }
48
ATF_TC_BODY(listen_err,tc)49 ATF_TC_BODY(listen_err, tc)
50 {
51 static const size_t siz = sizeof(struct sockaddr_in);
52 struct sockaddr_in sina, sinb;
53 int fda, fdb, fdc;
54
55 (void)memset(&sina, 0, sizeof(struct sockaddr_in));
56 (void)memset(&sinb, 0, sizeof(struct sockaddr_in));
57
58 sina.sin_family = AF_INET;
59 sina.sin_port = htons(31522);
60 sina.sin_addr.s_addr = inet_addr("127.0.0.1");
61
62 sinb.sin_family = AF_INET;
63 sinb.sin_port = htons(31522);
64 sinb.sin_addr.s_addr = inet_addr("127.0.0.1");
65
66 fda = socket(AF_INET, SOCK_STREAM, 0);
67 fdb = socket(AF_INET, SOCK_STREAM, 0);
68 fdc = open("listen", O_RDWR | O_CREAT, 0600);
69
70 ATF_REQUIRE(fda >= 0 && fdb >= 0 && fdc >= 0);
71 ATF_REQUIRE_ERRNO(ENOTSOCK, listen(fdc, 1) == -1);
72
73 (void)close(fdc);
74 (void)unlink(path);
75
76 ATF_REQUIRE(bind(fda, (struct sockaddr *)&sina, siz) == 0);
77 ATF_REQUIRE(listen(fda, 1) == 0);
78
79 /*
80 * According to IEEE Std 1003.1-2008: if the socket is
81 * already connected, the call should fail with EINVAL.
82 */
83 ATF_REQUIRE(connect(fdb, (struct sockaddr *)&sinb, siz) == 0);
84 ATF_REQUIRE_ERRNO(EINVAL, listen(fdb, 1) == -1);
85
86 (void)close(fda);
87 (void)close(fdb);
88
89 ATF_REQUIRE_ERRNO(EBADF, connect(fdb,
90 (struct sockaddr *)&sinb, siz) == -1);
91 }
92
ATF_TC_CLEANUP(listen_err,tc)93 ATF_TC_CLEANUP(listen_err, tc)
94 {
95 (void)unlink(path);
96 }
97
98 ATF_TC(listen_low_port);
ATF_TC_HEAD(listen_low_port,tc)99 ATF_TC_HEAD(listen_low_port, tc)
100 {
101 atf_tc_set_md_var(tc, "descr", "Does low-port allocation work?");
102 atf_tc_set_md_var(tc, "require.user", "root");
103 }
104
ATF_TC_BODY(listen_low_port,tc)105 ATF_TC_BODY(listen_low_port, tc)
106 {
107 int sd, val;
108
109 sd = socket(AF_INET, SOCK_STREAM, 0);
110 ATF_REQUIRE_MSG(sd != -1, "socket failed: %s", strerror(errno));
111
112 val = IP_PORTRANGE_LOW;
113 if (setsockopt(sd, IPPROTO_IP, IP_PORTRANGE, &val,
114 sizeof(val)) == -1)
115 atf_tc_fail("setsockopt failed: %s", strerror(errno));
116
117 if (listen(sd, 5) == -1) {
118 int serrno = errno;
119 atf_tc_fail("listen failed: %s%s",
120 strerror(serrno),
121 serrno != EACCES ? "" :
122 " (see http://mail-index.netbsd.org/"
123 "source-changes/2007/12/16/0011.html)");
124 }
125
126 close(sd);
127 }
128
ATF_TP_ADD_TCS(tp)129 ATF_TP_ADD_TCS(tp)
130 {
131
132 ATF_TP_ADD_TC(tp, listen_err);
133 ATF_TP_ADD_TC(tp, listen_low_port);
134
135 return 0;
136 }
137