tests/lib/libc/sys/t_socketpair.c

   1 /* $NetBSD: t_socketpair.c,v 1.1 2011/11/05 18:19:02 jruoho Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *        This product includes software developed by the NetBSD
  21  *        Foundation, Inc. and its contributors.
  22  * 4. Neither the name of The NetBSD Foundation nor the names of its
  23  *    contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  36  * POSSIBILITY OF SUCH DAMAGE.
  37  */
  38 #include <sys/cdefs.h>
  39 __RCSID("$NetBSD: t_socketpair.c,v 1.1 2011/11/05 18:19:02 jruoho Exp $");
  40
  41 #include <atf-c.h>
  42 #include <fcntl.h>
  43 #include <unistd.h>
  44 #include <stdlib.h>
  45 #include <sys/socket.h>
  46 #include <sys/un.h>
  47 #include <errno.h>
  48
  49 static void
  50 connected(int fd)
  51 {
  52         struct sockaddr_un addr;
  53         socklen_t len = (socklen_t)sizeof(addr);
  54         ATF_REQUIRE(getpeername(fd, (struct sockaddr*)(void *)&addr,
  55             &len) == 0);
  56 }
  57
  58 static void
  59 run(int flags)
  60 {
  61         int fd[2], i;
  62
  63         while ((i = open("/", O_RDONLY)) < 3)
  64                 ATF_REQUIRE(i != -1);
  65
  66         ATF_REQUIRE(fcntl(3, F_CLOSEM) != -1);
  67
  68         ATF_REQUIRE(socketpair(AF_UNIX, SOCK_DGRAM | flags, 0, fd) == 0);
  69
  70         ATF_REQUIRE(fd[0] == 3);
  71         ATF_REQUIRE(fd[1] == 4);
  72
  73         connected(fd[0]);
  74         connected(fd[1]);
  75
  76         if (flags & SOCK_CLOEXEC) {
  77                 ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) != 0);
  78                 ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) != 0);
  79         } else {
  80                 ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) == 0);
  81                 ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) == 0);
  82         }
  83
  84         if (flags & SOCK_NONBLOCK) {
  85                 ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) != 0);
  86                 ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) != 0);
  87         } else {
  88                 ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) == 0);
  89                 ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) == 0);
  90         }
  91
  92         ATF_REQUIRE(close(fd[0]) != -1);
  93         ATF_REQUIRE(close(fd[1]) != -1);
  94 }
  95
  96 ATF_TC(socketpair_basic);
  97 ATF_TC_HEAD(socketpair_basic, tc)
  98 {
  99         atf_tc_set_md_var(tc, "descr", "A basic test of socketpair(2)");
 100 }
 101
 102 ATF_TC_BODY(socketpair_basic, tc)
 103 {
 104         run(0);
 105 }
 106
 107 ATF_TC(socketpair_nonblock);
 108 ATF_TC_HEAD(socketpair_nonblock, tc)
 109 {
 110         atf_tc_set_md_var(tc, "descr", "A non-blocking test of socketpair(2)");
 111 }
 112
 113 ATF_TC_BODY(socketpair_nonblock, tc)
 114 {
 115         run(SOCK_NONBLOCK);
 116 }
 117
 118 ATF_TC(socketpair_cloexec);
 119 ATF_TC_HEAD(socketpair_cloexec, tc)
 120 {
 121         atf_tc_set_md_var(tc, "descr", "A close-on-exec of socketpair(2)");
 122 }
 123
 124 ATF_TC_BODY(socketpair_cloexec, tc)
 125 {
 126         run(SOCK_CLOEXEC);
 127 }
 128
 129 ATF_TP_ADD_TCS(tp)
 130 {
 131
 132         ATF_TP_ADD_TC(tp, socketpair_basic);
 133         ATF_TP_ADD_TC(tp, socketpair_nonblock);
 134         ATF_TP_ADD_TC(tp, socketpair_cloexec);
 135
 136         return atf_no_error();
 137 }