1 /* $NetBSD: t_listen.c,v 1.5 2017/01/13 20:41:50 christos Exp $ */ 2 /* 3 * Copyright (c) 2007 The NetBSD Foundation, Inc. 4 * All rights reserved. 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 NETBSD FOUNDATION, INC. AND 16 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 17 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY 20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 22 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 24 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/socket.h> 30 #include <atf-c.h> 31 #include <err.h> 32 #include <errno.h> 33 #include <fcntl.h> 34 #include <string.h> 35 #include <unistd.h> 36 37 #include <arpa/inet.h> 38 #include <netinet/in.h> 39 40 static const char *path = "listen"; 41 42 ATF_TC_WITH_CLEANUP(listen_err); 43 ATF_TC_HEAD(listen_err, tc) 44 { 45 atf_tc_set_md_var(tc, "descr", 46 "Checks errors from listen(2) (PR standards/46150)"); 47 } 48 49 ATF_TC_BODY(listen_err, tc) 50 { 51 static const size_t siz = sizeof(struct sockaddr_in); 52 struct sockaddr_in sina, sinb; 53 int fda, fdb, fdc; 54 55 (void)memset(&sina, 0, sizeof(struct sockaddr_in)); 56 (void)memset(&sinb, 0, sizeof(struct sockaddr_in)); 57 58 sina.sin_family = AF_INET; 59 sina.sin_port = htons(31522); 60 sina.sin_addr.s_addr = inet_addr("127.0.0.1"); 61 62 sinb.sin_family = AF_INET; 63 sinb.sin_port = htons(31522); 64 sinb.sin_addr.s_addr = inet_addr("127.0.0.1"); 65 66 fda = socket(AF_INET, SOCK_STREAM, 0); 67 fdb = socket(AF_INET, SOCK_STREAM, 0); 68 fdc = open("listen", O_RDWR | O_CREAT, 0600); 69 70 ATF_REQUIRE(fda >= 0 && fdb >= 0 && fdc >= 0); 71 ATF_REQUIRE_ERRNO(ENOTSOCK, listen(fdc, 1) == -1); 72 73 (void)close(fdc); 74 (void)unlink(path); 75 76 ATF_REQUIRE(bind(fda, (struct sockaddr *)&sina, siz) == 0); 77 ATF_REQUIRE(listen(fda, 1) == 0); 78 79 /* 80 * According to IEEE Std 1003.1-2008: if the socket is 81 * already connected, the call should fail with EINVAL. 82 */ 83 ATF_REQUIRE(connect(fdb, (struct sockaddr *)&sinb, siz) == 0); 84 ATF_REQUIRE_ERRNO(EINVAL, listen(fdb, 1) == -1); 85 86 (void)close(fda); 87 (void)close(fdb); 88 89 ATF_REQUIRE_ERRNO(EBADF, connect(fdb, 90 (struct sockaddr *)&sinb, siz) == -1); 91 } 92 93 ATF_TC_CLEANUP(listen_err, tc) 94 { 95 (void)unlink(path); 96 } 97 98 ATF_TC(listen_low_port); 99 ATF_TC_HEAD(listen_low_port, tc) 100 { 101 atf_tc_set_md_var(tc, "descr", "Does low-port allocation work?"); 102 atf_tc_set_md_var(tc, "require.user", "root"); 103 } 104 105 ATF_TC_BODY(listen_low_port, tc) 106 { 107 int sd, val; 108 109 sd = socket(AF_INET, SOCK_STREAM, 0); 110 ATF_REQUIRE_MSG(sd != -1, "socket failed: %s", strerror(errno)); 111 112 val = IP_PORTRANGE_LOW; 113 if (setsockopt(sd, IPPROTO_IP, IP_PORTRANGE, &val, 114 sizeof(val)) == -1) 115 atf_tc_fail("setsockopt failed: %s", strerror(errno)); 116 117 if (listen(sd, 5) == -1) { 118 int serrno = errno; 119 atf_tc_fail("listen failed: %s%s", 120 strerror(serrno), 121 serrno != EACCES ? "" : 122 " (see http://mail-index.netbsd.org/" 123 "source-changes/2007/12/16/0011.html)"); 124 } 125 126 close(sd); 127 } 128 129 ATF_TP_ADD_TCS(tp) 130 { 131 132 ATF_TP_ADD_TC(tp, listen_err); 133 ATF_TP_ADD_TC(tp, listen_low_port); 134 135 return 0; 136 } 137