1 /*
2 * This file is part of net-yy-inet strace test.
3 *
4 * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "tests.h"
31 #include <assert.h>
32 #include <stddef.h>
33 #include <stdio.h>
34 #include <string.h>
35 #include <unistd.h>
36 #include <sys/socket.h>
37 #include <netinet/in.h>
38 #include <netinet/tcp.h>
39 #include <arpa/inet.h>
40
41 int
main(void)42 main(void)
43 {
44 const struct sockaddr_in addr = {
45 .sin_family = AF_INET,
46 .sin_addr.s_addr = htonl(INADDR_LOOPBACK)
47 };
48 struct sockaddr * const listen_sa = tail_memdup(&addr, sizeof(addr));
49 socklen_t * const len = tail_alloc(sizeof(socklen_t));
50 *len = sizeof(addr);
51
52 const int listen_fd = socket(AF_INET, SOCK_STREAM, 0);
53 if (listen_fd < 0)
54 perror_msg_and_skip("socket");
55 const unsigned long listen_inode = inode_of_sockfd(listen_fd);
56 printf("socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = %d<TCP:[%lu]>\n",
57 listen_fd, listen_inode);
58
59 if (bind(listen_fd, listen_sa, *len))
60 perror_msg_and_skip("bind");
61 printf("bind(%d<TCP:[%lu]>, {sa_family=AF_INET, sin_port=htons(0)"
62 ", sin_addr=inet_addr(\"127.0.0.1\")}, %u) = 0\n",
63 listen_fd, listen_inode, (unsigned) *len);
64
65 if (listen(listen_fd, 1))
66 perror_msg_and_skip("listen");
67 printf("listen(%d<TCP:[%lu]>, 1) = 0\n", listen_fd, listen_inode);
68
69 memset(listen_sa, 0, sizeof(addr));
70 *len = sizeof(addr);
71 if (getsockname(listen_fd, listen_sa, len))
72 perror_msg_and_fail("getsockname");
73 const unsigned int listen_port =
74 ntohs(((struct sockaddr_in *) listen_sa) -> sin_port);
75 printf("getsockname(%d<TCP:[127.0.0.1:%u]>, {sa_family=AF_INET"
76 ", sin_port=htons(%u), sin_addr=inet_addr(\"127.0.0.1\")}"
77 ", [%u]) = 0\n",
78 listen_fd, listen_port, listen_port, (unsigned) *len);
79
80 unsigned int * const optval = tail_alloc(sizeof(unsigned int));
81 *len = sizeof(*optval);
82 if (getsockopt(listen_fd, SOL_TCP, TCP_MAXSEG, optval, len))
83 perror_msg_and_fail("getsockopt");
84 printf("getsockopt(%d<TCP:[127.0.0.1:%u]>, SOL_TCP, TCP_MAXSEG"
85 ", [%u], [%u]) = 0\n",
86 listen_fd, listen_port, *optval, (unsigned) *len);
87
88 const int connect_fd = socket(AF_INET, SOCK_STREAM, 0);
89 if (connect_fd < 0)
90 perror_msg_and_fail("socket");
91 const unsigned long connect_inode = inode_of_sockfd(connect_fd);
92 printf("socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = %d<TCP:[%lu]>\n",
93 connect_fd, connect_inode);
94
95 *len = sizeof(addr);
96 if (connect(connect_fd, listen_sa, *len))
97 perror_msg_and_fail("connect");
98 printf("connect(%d<TCP:[%lu]>, {sa_family=AF_INET, sin_port=htons(%u)"
99 ", sin_addr=inet_addr(\"127.0.0.1\")}, %u) = 0\n",
100 connect_fd, connect_inode, listen_port, (unsigned) *len);
101
102 struct sockaddr * const accept_sa = tail_alloc(sizeof(addr));
103 memset(accept_sa, 0, sizeof(addr));
104 *len = sizeof(addr);
105 const int accept_fd = accept(listen_fd, accept_sa, len);
106 if (accept_fd < 0)
107 perror_msg_and_fail("accept");
108 const unsigned int connect_port =
109 ntohs(((struct sockaddr_in *) accept_sa) -> sin_port);
110 printf("accept(%d<TCP:[127.0.0.1:%u]>, {sa_family=AF_INET"
111 ", sin_port=htons(%u), sin_addr=inet_addr(\"127.0.0.1\")}"
112 ", [%u]) = %d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>\n",
113 listen_fd, listen_port, connect_port, (unsigned) *len,
114 accept_fd, listen_port, connect_port);
115
116 memset(accept_sa, 0, sizeof(addr));
117 *len = sizeof(addr);
118 if (getpeername(accept_fd, accept_sa, len))
119 perror_msg_and_fail("getpeername");
120 printf("getpeername(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
121 ", {sa_family=AF_INET, sin_port=htons(%u)"
122 ", sin_addr=inet_addr(\"127.0.0.1\")}, [%u]) = 0\n",
123 accept_fd, listen_port, connect_port, connect_port,
124 (unsigned) *len);
125
126 memset(listen_sa, 0, sizeof(addr));
127 *len = sizeof(addr);
128 if (getpeername(connect_fd, listen_sa, len))
129 perror_msg_and_fail("getpeername");
130 printf("getpeername(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
131 ", {sa_family=AF_INET, sin_port=htons(%u)"
132 ", sin_addr=inet_addr(\"127.0.0.1\")}, [%u]) = 0\n",
133 connect_fd, connect_port, listen_port, listen_port,
134 (unsigned) *len);
135
136 *len = sizeof(*optval);
137 if (setsockopt(connect_fd, SOL_TCP, TCP_MAXSEG, optval, *len))
138 perror_msg_and_fail("setsockopt");
139 printf("setsockopt(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>"
140 ", SOL_TCP, TCP_MAXSEG, [%u], %u) = 0\n",
141 connect_fd, connect_port, listen_port, *optval,
142 (unsigned) *len);
143
144 char text[] = "text";
145 assert(sendto(connect_fd, text, sizeof(text) - 1,
146 MSG_DONTROUTE | MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1);
147 printf("sendto(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>, \"%s\", %u"
148 ", MSG_DONTROUTE|MSG_DONTWAIT, NULL, 0) = %u\n",
149 connect_fd, connect_port, listen_port, text,
150 (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
151
152 assert(close(connect_fd) == 0);
153 printf("close(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>) = 0\n",
154 connect_fd, connect_port, listen_port);
155
156 assert(recvfrom(accept_fd, text, sizeof(text) - 1, MSG_WAITALL,
157 NULL, NULL) == sizeof(text) - 1);
158 printf("recvfrom(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>, \"%s\", %u"
159 ", MSG_WAITALL, NULL, NULL) = %u\n",
160 accept_fd, listen_port, connect_port, text,
161 (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
162
163 assert(close(accept_fd) == 0);
164 printf("close(%d<TCP:[127.0.0.1:%u->127.0.0.1:%u]>) = 0\n",
165 accept_fd, listen_port, connect_port);
166
167 assert(close(listen_fd) == 0);
168 printf("close(%d<TCP:[127.0.0.1:%u]>) = 0\n",
169 listen_fd, listen_port);
170
171 puts("+++ exited with 0 +++");
172 return 0;
173 }
174