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) 2016-2018 The strace developers.
8 * SPDX-License-Identifier: GPL-2.0-or-later
17 #include <sys/socket.h>
18 #include <netinet/in.h>
19 #include <netinet/tcp.h>
20 #include <arpa/inet.h>
22 #include "accept_compat.h"
25 # define ADDR_FAMILY_FIELD sin_family
26 # define ADDR_FAMILY AF_INET
27 # define AF_STR "AF_INET"
28 # define LOOPBACK_FIELD .sin_addr.s_addr = htonl(INADDR_LOOPBACK)
29 # define LOOPBACK "127.0.0.1"
30 # define SOCKADDR_TYPE sockaddr_in
31 # define TCP_STR "TCP"
32 # define INPORT sin_port
33 # define INPORT_STR "sin_port"
34 # define INADDR_STR "sin_addr=inet_addr(\"" LOOPBACK "\")"
41 skip_if_unavailable("/proc/self/fd/");
43 const struct SOCKADDR_TYPE addr = {
44 .ADDR_FAMILY_FIELD = ADDR_FAMILY,
47 struct sockaddr * const listen_sa = tail_memdup(&addr, sizeof(addr));
48 TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, len);
51 const int listen_fd = socket(ADDR_FAMILY, SOCK_STREAM, 0);
53 perror_msg_and_skip("socket");
54 const unsigned long listen_inode = inode_of_sockfd(listen_fd);
55 printf("socket(" AF_STR ", SOCK_STREAM, IPPROTO_IP) = %d<" TCP_STR
57 listen_fd, listen_inode);
59 if (bind(listen_fd, listen_sa, *len))
60 perror_msg_and_skip("bind");
61 printf("bind(%d<" TCP_STR ":[%lu]>, {sa_family=" AF_STR ", " INPORT_STR
62 "=htons(0), " INADDR_STR SA_FIELDS "}, %u) = 0\n",
63 listen_fd, listen_inode, (unsigned) *len);
65 if (listen(listen_fd, 1))
66 perror_msg_and_skip("listen");
67 printf("listen(%d<" TCP_STR ":[%lu]>, 1) = 0\n",
68 listen_fd, listen_inode);
70 memset(listen_sa, 0, sizeof(addr));
72 if (getsockname(listen_fd, listen_sa, len))
73 perror_msg_and_fail("getsockname");
74 const unsigned int listen_port =
75 ntohs(((struct SOCKADDR_TYPE *) listen_sa)->INPORT);
76 printf("getsockname(%d<" TCP_STR ":[" LOOPBACK ":%u]>, {sa_family="
77 AF_STR ", " INPORT_STR "=htons(%u), " INADDR_STR SA_FIELDS "}"
79 listen_fd, listen_port, listen_port, (unsigned) *len);
81 TAIL_ALLOC_OBJECT_CONST_PTR(unsigned int, optval);
82 *len = sizeof(*optval);
83 if (getsockopt(listen_fd, SOL_TCP, TCP_MAXSEG, optval, len))
84 perror_msg_and_fail("getsockopt");
85 printf("getsockopt(%d<" TCP_STR ":[" LOOPBACK ":%u]>, SOL_TCP, "
86 "TCP_MAXSEG, [%u], [%u]) = 0\n",
87 listen_fd, listen_port, *optval, (unsigned) *len);
89 const int connect_fd = socket(ADDR_FAMILY, SOCK_STREAM, 0);
91 perror_msg_and_fail("socket");
92 const unsigned long connect_inode = inode_of_sockfd(connect_fd);
93 printf("socket(" AF_STR ", SOCK_STREAM, IPPROTO_IP) = %d<" TCP_STR
95 connect_fd, connect_inode);
98 if (connect(connect_fd, listen_sa, *len))
99 perror_msg_and_fail("connect");
100 printf("connect(%d<" TCP_STR ":[%lu]>, {sa_family=" AF_STR ", "
101 INPORT_STR "=htons(%u), " INADDR_STR SA_FIELDS "}, %u) = 0\n",
102 connect_fd, connect_inode, listen_port, (unsigned) *len);
104 struct sockaddr * const accept_sa = tail_alloc(sizeof(addr));
105 memset(accept_sa, 0, sizeof(addr));
107 const int accept_fd = do_accept(listen_fd, accept_sa, len);
109 perror_msg_and_fail("accept");
110 const unsigned int connect_port =
111 ntohs(((struct SOCKADDR_TYPE *) accept_sa)->INPORT);
112 printf("accept(%d<" TCP_STR ":[" LOOPBACK ":%u]>, {sa_family=" AF_STR
113 ", " INPORT_STR "=htons(%u), " INADDR_STR SA_FIELDS "}"
114 ", [%u]) = %d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>\n",
115 listen_fd, listen_port, connect_port, (unsigned) *len,
116 accept_fd, listen_port, connect_port);
118 memset(accept_sa, 0, sizeof(addr));
120 if (getpeername(accept_fd, accept_sa, len))
121 perror_msg_and_fail("getpeername");
122 printf("getpeername(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>"
123 ", {sa_family=" AF_STR ", " INPORT_STR "=htons(%u)"
124 ", " INADDR_STR SA_FIELDS "}, [%u]) = 0\n",
125 accept_fd, listen_port, connect_port, connect_port,
128 memset(listen_sa, 0, sizeof(addr));
130 if (getpeername(connect_fd, listen_sa, len))
131 perror_msg_and_fail("getpeername");
132 printf("getpeername(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>"
133 ", {sa_family=" AF_STR ", " INPORT_STR "=htons(%u)"
134 ", " INADDR_STR SA_FIELDS "}, [%u]) = 0\n",
135 connect_fd, connect_port, listen_port, listen_port,
138 *len = sizeof(*optval);
139 if (setsockopt(connect_fd, SOL_TCP, TCP_MAXSEG, optval, *len))
140 perror_msg_and_fail("setsockopt");
141 printf("setsockopt(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>"
142 ", SOL_TCP, TCP_MAXSEG, [%u], %u) = 0\n",
143 connect_fd, connect_port, listen_port, *optval,
146 char text[] = "text";
147 assert(sendto(connect_fd, text, sizeof(text) - 1,
148 MSG_DONTROUTE | MSG_DONTWAIT, NULL, 0) == sizeof(text) - 1);
149 printf("sendto(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>, "
150 "\"%s\", %u, MSG_DONTROUTE|MSG_DONTWAIT, NULL, 0) = %u\n",
151 connect_fd, connect_port, listen_port, text,
152 (unsigned) sizeof(text) - 1, (unsigned) sizeof(text) - 1);
154 assert(close(connect_fd) == 0);
155 printf("close(%d<" TCP_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>) = "
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_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>, "
162 "\"%s\", %u, 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_STR ":[" LOOPBACK ":%u->" LOOPBACK ":%u]>) = "
169 accept_fd, listen_port, connect_port);
171 assert(close(listen_fd) == 0);
172 printf("close(%d<" TCP_STR ":[" LOOPBACK ":%u]>) = 0\n",
173 listen_fd, listen_port);
175 puts("+++ exited with 0 +++");