2 * This file is part of net-yy-inet strace test.
4 * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2016-2017 The strace developers.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 #include <sys/socket.h>
38 #include <netinet/in.h>
39 #include <netinet/tcp.h>
40 #include <arpa/inet.h>
45 skip_if_unavailable("/proc/self/fd/");
47 const struct sockaddr_in addr = {
48 .sin_family = AF_INET,
49 .sin_addr.s_addr = htonl(INADDR_LOOPBACK)
51 struct sockaddr * const listen_sa = tail_memdup(&addr, sizeof(addr));
52 TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, len);
55 const int listen_fd = socket(AF_INET, SOCK_STREAM, 0);
57 perror_msg_and_skip("socket");
58 const unsigned long listen_inode = inode_of_sockfd(listen_fd);
59 printf("socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = %d<TCP:[%lu]>\n",
60 listen_fd, listen_inode);
62 if (bind(listen_fd, listen_sa, *len))
63 perror_msg_and_skip("bind");
64 printf("bind(%d<TCP:[%lu]>, {sa_family=AF_INET, sin_port=htons(0)"
65 ", sin_addr=inet_addr(\"127.0.0.1\")}, %u) = 0\n",
66 listen_fd, listen_inode, (unsigned) *len);
68 if (listen(listen_fd, 1))
69 perror_msg_and_skip("listen");
70 printf("listen(%d<TCP:[%lu]>, 1) = 0\n", listen_fd, listen_inode);
72 memset(listen_sa, 0, sizeof(addr));
74 if (getsockname(listen_fd, listen_sa, len))
75 perror_msg_and_fail("getsockname");
76 const unsigned int listen_port =
77 ntohs(((struct sockaddr_in *) listen_sa)->sin_port);
78 printf("getsockname(%d<TCP:[127.0.0.1:%u]>, {sa_family=AF_INET"
79 ", sin_port=htons(%u), sin_addr=inet_addr(\"127.0.0.1\")}"
81 listen_fd, listen_port, listen_port, (unsigned) *len);
83 TAIL_ALLOC_OBJECT_CONST_PTR(unsigned int, optval);
84 *len = sizeof(*optval);
85 if (getsockopt(listen_fd, SOL_TCP, TCP_MAXSEG, optval, len))
86 perror_msg_and_fail("getsockopt");
87 printf("getsockopt(%d<TCP:[127.0.0.1:%u]>, SOL_TCP, TCP_MAXSEG"
88 ", [%u], [%u]) = 0\n",
89 listen_fd, listen_port, *optval, (unsigned) *len);
91 const int connect_fd = socket(AF_INET, SOCK_STREAM, 0);
93 perror_msg_and_fail("socket");
94 const unsigned long connect_inode = inode_of_sockfd(connect_fd);
95 printf("socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = %d<TCP:[%lu]>\n",
96 connect_fd, connect_inode);
99 if (connect(connect_fd, listen_sa, *len))
100 perror_msg_and_fail("connect");
101 printf("connect(%d<TCP:[%lu]>, {sa_family=AF_INET, sin_port=htons(%u)"
102 ", sin_addr=inet_addr(\"127.0.0.1\")}, %u) = 0\n",
103 connect_fd, connect_inode, listen_port, (unsigned) *len);
105 struct sockaddr * const accept_sa = tail_alloc(sizeof(addr));
106 memset(accept_sa, 0, sizeof(addr));
108 const int accept_fd = accept(listen_fd, accept_sa, len);
110 perror_msg_and_fail("accept");
111 const unsigned int connect_port =
112 ntohs(((struct sockaddr_in *) accept_sa)->sin_port);
113 printf("accept(%d<TCP:[127.0.0.1:%u]>, {sa_family=AF_INET"
114 ", sin_port=htons(%u), sin_addr=inet_addr(\"127.0.0.1\")}"
115 ", [%u]) = %d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>\n",
116 listen_fd, listen_port, connect_port, (unsigned) *len,
117 accept_fd, listen_port, connect_port);
119 memset(accept_sa, 0, sizeof(addr));
121 if (getpeername(accept_fd, accept_sa, len))
122 perror_msg_and_fail("getpeername");
123 printf("getpeername(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
124 ", {sa_family=AF_INET, sin_port=htons(%u)"
125 ", sin_addr=inet_addr(\"127.0.0.1\")}, [%u]) = 0\n",
126 accept_fd, listen_port, connect_port, connect_port,
129 memset(listen_sa, 0, sizeof(addr));
131 if (getpeername(connect_fd, listen_sa, len))
132 perror_msg_and_fail("getpeername");
133 printf("getpeername(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
134 ", {sa_family=AF_INET, sin_port=htons(%u)"
135 ", sin_addr=inet_addr(\"127.0.0.1\")}, [%u]) = 0\n",
136 connect_fd, connect_port, listen_port, listen_port,
139 *len = sizeof(*optval);
140 if (setsockopt(connect_fd, SOL_TCP, TCP_MAXSEG, optval, *len))
141 perror_msg_and_fail("setsockopt");
142 printf("setsockopt(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
143 ", SOL_TCP, TCP_MAXSEG, [%u], %u) = 0\n",
144 connect_fd, connect_port, listen_port, *optval,
147 char text[] = "text";
148 assert(sendto(connect_fd, text, sizeof(text) - 1,
149 MSG_DONTROUTE | MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1);
150 printf("sendto(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>, \"%s\", %u"
151 ", MSG_DONTROUTE|MSG_DONTWAIT, NULL, 0) = %u\n",
152 connect_fd, connect_port, listen_port, text,
153 (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
155 assert(close(connect_fd) == 0);
156 printf("close(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>) = 0\n",
157 connect_fd, connect_port, listen_port);
159 assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_WAITALL,
160 NULL, NULL) == sizeof(text) - 1);
161 printf("recvfrom(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>, \"%s\", %u"
162 ", MSG_WAITALL, NULL, NULL) = %u\n",
163 accept_fd, listen_port, connect_port, text,
164 (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
166 assert(close(accept_fd) == 0);
167 printf("close(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>) = 0\n",
168 accept_fd, listen_port, connect_port);
170 assert(close(listen_fd) == 0);
171 printf("close(%d<TCP:[127.0.0.1:%u]>) = 0\n",
172 listen_fd, listen_port);
174 puts("+++ exited with 0 +++");