1 /* $NetBSD: t_pipe.c,v 1.2 2017/01/13 21:30:41 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Luke Mewburn and Jaromir Dolecek. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __COPYRIGHT("@(#) Copyright (c) 2008\ 34 The NetBSD Foundation, inc. All rights reserved."); 35 __RCSID("$NetBSD: t_pipe.c,v 1.2 2017/01/13 21:30:41 christos Exp $"); 36 37 #include <sys/event.h> 38 39 #include <stdio.h> 40 #include <unistd.h> 41 42 #include <atf-c.h> 43 44 #include "h_macros.h" 45 46 ATF_TC(pipe); 47 ATF_TC_HEAD(pipe, tc) 48 { 49 atf_tc_set_md_var(tc, "descr", "Checks EVFILT_READ for pipes"); 50 } 51 ATF_TC_BODY(pipe, tc) 52 { 53 struct kevent event[1]; 54 char buffer[128]; 55 int fds[2]; 56 int kq, n; 57 58 RL(pipe(fds)); 59 RL(kq = kqueue()); 60 61 EV_SET(&event[0], fds[0], EVFILT_READ, EV_ADD|EV_ENABLE, 0, 0, 0); 62 RL(kevent(kq, event, 1, NULL, 0, NULL)); 63 64 /* make sure there is something in the pipe */ 65 RL(write(fds[1], "foo", 3)); 66 (void)printf("pipe: wrote 'foo' to pipe\n"); 67 68 RL(n = kevent(kq, NULL, 0, event, 1, NULL)); 69 (void)printf("kevent num %d flags: %#x, fflags: %#x, data: " 70 #ifdef __FreeBSD__ 71 "%" PRIdPTR "\n", n, event[0].flags, event[0].fflags, event[0].data); 72 #else 73 "%" PRId64 "\n", n, event[0].flags, event[0].fflags, event[0].data); 74 #endif 75 76 RL(n = read(fds[0], buffer, event[0].data)); 77 buffer[n] = '\0'; 78 79 (void)printf("pipe: read '%s'\n", buffer); 80 (void)printf("pipe: successful end\n"); 81 } 82 83 ATF_TP_ADD_TCS(tp) 84 { 85 ATF_TP_ADD_TC(tp, pipe); 86 87 return atf_no_error(); 88 } 89