1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2024 Gleb Smirnoff <glebius@FreeBSD.org>
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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/socket.h>
29 #include <netinet/in.h>
30 #include <stdio.h>
31 #include <unistd.h>
32 #include <string.h>
33
34 #include <atf-c.h>
35
36 ATF_TC_WITHOUT_HEAD(tcp_implied_connect);
ATF_TC_BODY(tcp_implied_connect,tc)37 ATF_TC_BODY(tcp_implied_connect, tc)
38 {
39 struct sockaddr_in sin = {
40 .sin_family = AF_INET,
41 .sin_len = sizeof(sin),
42 };
43 const char buf[] = "hello";
44 char repl[sizeof(buf)];
45 socklen_t len;
46 int s, c, a;
47
48 ATF_REQUIRE(s = socket(PF_INET, SOCK_STREAM, 0));
49 ATF_REQUIRE(c = socket(PF_INET, SOCK_STREAM, 0));
50
51 ATF_REQUIRE(bind(s, (struct sockaddr *)&sin, sizeof(sin)) == 0);
52 len = sizeof(sin);
53 ATF_REQUIRE(getsockname(s, (struct sockaddr *)&sin, &len) == 0);
54 ATF_REQUIRE(listen(s, -1) == 0);
55 #if 0
56 /*
57 * The disabled code is that you would normally do.
58 */
59 ATF_REQUIRE(connect(c, (struct sockaddr *)&sin, sizeof(sin)) == 0);
60 ATF_REQUIRE(send(c, &buf, sizeof(buf), 0) == sizeof(buf));
61 #else
62 /*
63 * And this is implied connect.
64 */
65 ATF_REQUIRE(sendto(c, &buf, sizeof(buf), 0, (struct sockaddr *)&sin,
66 sizeof(sin)) == sizeof(buf));
67 #endif
68
69 ATF_REQUIRE((a = accept(s, NULL, NULL)) != 1);
70 ATF_REQUIRE(recv(a, &repl, sizeof(repl), 0) == sizeof(buf));
71 ATF_REQUIRE(strcmp(buf, repl) == 0);
72 }
73
ATF_TP_ADD_TCS(tp)74 ATF_TP_ADD_TCS(tp)
75 {
76 ATF_TP_ADD_TC(tp, tcp_implied_connect);
77
78 return (atf_no_error());
79 }
80