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(implied_connect); 37 ATF_TC_BODY(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 s = socket(PF_INET, SOCK_STREAM, 0); 49 ATF_REQUIRE(s != -1); 50 c = socket(PF_INET, SOCK_STREAM, 0); 51 ATF_REQUIRE(c != -1); 52 53 ATF_REQUIRE(bind(s, (struct sockaddr *)&sin, sizeof(sin)) == 0); 54 len = sizeof(sin); 55 ATF_REQUIRE(getsockname(s, (struct sockaddr *)&sin, &len) == 0); 56 sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 57 ATF_REQUIRE(listen(s, -1) == 0); 58 #if 0 59 /* 60 * The disabled code is that you would normally do. 61 */ 62 ATF_REQUIRE(connect(c, (struct sockaddr *)&sin, sizeof(sin)) == 0); 63 ATF_REQUIRE(send(c, &buf, sizeof(buf), 0) == sizeof(buf)); 64 #else 65 /* 66 * And this is implied connect. 67 */ 68 ATF_REQUIRE(sendto(c, &buf, sizeof(buf), 0, (struct sockaddr *)&sin, 69 sizeof(sin)) == sizeof(buf)); 70 #endif 71 72 ATF_REQUIRE((a = accept(s, NULL, NULL)) != 1); 73 ATF_REQUIRE(recv(a, &repl, sizeof(repl), 0) == sizeof(buf)); 74 ATF_REQUIRE(strcmp(buf, repl) == 0); 75 } 76 77 /* 78 * A disconnected TCP socket shall return the local address it used before 79 * it was disconnected. 80 */ 81 ATF_TC_WITHOUT_HEAD(getsockname_disconnected); 82 ATF_TC_BODY(getsockname_disconnected, tc) 83 { 84 struct sockaddr_in sin = { 85 .sin_family = AF_INET, 86 .sin_len = sizeof(sin), 87 }; 88 socklen_t len; 89 int s, c, a; 90 91 s = socket(PF_INET, SOCK_STREAM, 0); 92 ATF_REQUIRE(s != -1); 93 c = socket(PF_INET, SOCK_STREAM, 0); 94 ATF_REQUIRE(c != -1); 95 96 ATF_REQUIRE(bind(s, (struct sockaddr *)&sin, sizeof(sin)) == 0); 97 len = sizeof(sin); 98 ATF_REQUIRE(getsockname(s, (struct sockaddr *)&sin, &len) == 0); 99 sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 100 ATF_REQUIRE(listen(s, -1) == 0); 101 ATF_REQUIRE(connect(c, (struct sockaddr *)&sin, sizeof(sin)) == 0); 102 ATF_REQUIRE((a = accept(s, NULL, NULL)) != 1); 103 ATF_REQUIRE(close(a) == 0); 104 ATF_REQUIRE(getsockname(c, (struct sockaddr *)&sin, &len) == 0); 105 ATF_REQUIRE(sin.sin_addr.s_addr == htonl(INADDR_LOOPBACK)); 106 107 close(c); 108 close(s); 109 } 110 111 ATF_TP_ADD_TCS(tp) 112 { 113 ATF_TP_ADD_TC(tp, implied_connect); 114 ATF_TP_ADD_TC(tp, getsockname_disconnected); 115 116 return (atf_no_error()); 117 } 118