1 /* $NetBSD: t_proc1.c,v 1.3 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_proc1.c,v 1.3 2017/01/13 21:30:41 christos Exp $"); 36 37 /* 38 * this also used to trigger problem fixed in 39 * rev. 1.1.1.1.2.13 of sys/kern/kern_event.c 40 */ 41 42 #include <sys/param.h> 43 #include <sys/event.h> 44 #include <sys/wait.h> 45 46 #include <err.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <unistd.h> 50 #include <inttypes.h> 51 52 #include <atf-c.h> 53 54 #include "h_macros.h" 55 56 static int 57 child(void) 58 { 59 pid_t ch; 60 int status; 61 char *argv[] = { NULL, NULL }; 62 char *envp[] = { NULL, NULL }; 63 64 if ((argv[0] = strdup("true")) == NULL) 65 err(EXIT_FAILURE, "strdup(\"true\")"); 66 67 if ((envp[0] = strdup("FOO=BAZ")) == NULL) 68 err(EXIT_FAILURE, "strdup(\"FOO=BAZ\")"); 69 70 /* Ensure parent is ready */ 71 (void)sleep(2); 72 73 /* Do fork */ 74 switch (ch = fork()) { 75 case -1: 76 return EXIT_FAILURE; 77 /* NOTREACHED */ 78 case 0: 79 return EXIT_SUCCESS; 80 /* NOTREACHED */ 81 default: 82 wait(&status); 83 break; 84 } 85 86 /* Exec */ 87 execve("/usr/bin/true", argv, envp); 88 89 /* NOTREACHED */ 90 return EXIT_FAILURE; 91 } 92 93 ATF_TC(proc1); 94 ATF_TC_HEAD(proc1, tc) 95 { 96 atf_tc_set_md_var(tc, "descr", "Checks EVFILT_PROC"); 97 } 98 ATF_TC_BODY(proc1, tc) 99 { 100 struct kevent event[1]; 101 pid_t pid; 102 int kq, status; 103 u_int want; 104 105 RL(kq = kqueue()); 106 107 /* fork a child for doing the events */ 108 RL(pid = fork()); 109 if (pid == 0) { 110 _exit(child()); 111 /* NOTREACHED */ 112 } 113 114 (void)sleep(1); /* give child some time to come up */ 115 116 event[0].ident = (uintptr_t)pid; 117 event[0].filter = EVFILT_PROC; 118 event[0].flags = EV_ADD | EV_ENABLE; 119 event[0].fflags = NOTE_EXIT | NOTE_FORK | NOTE_EXEC; /* | NOTE_TRACK;*/ 120 want = NOTE_EXIT | NOTE_FORK | NOTE_EXEC; 121 122 RL(kevent(kq, event, 1, NULL, 0, NULL)); 123 124 /* wait until we get all events we want */ 125 while (want) { 126 RL(kevent(kq, NULL, 0, event, 1, NULL)); 127 printf("%ld:", (long)event[0].ident); 128 129 if (event[0].fflags & NOTE_EXIT) { 130 want &= ~NOTE_EXIT; 131 printf(" NOTE_EXIT"); 132 } 133 if (event[0].fflags & NOTE_EXEC) { 134 want &= ~NOTE_EXEC; 135 printf(" NOTE_EXEC"); 136 } 137 if (event[0].fflags & NOTE_FORK) { 138 want &= ~NOTE_FORK; 139 printf(" NOTE_FORK"); 140 } 141 if (event[0].fflags & NOTE_CHILD) 142 #ifdef __FreeBSD__ 143 printf(" NOTE_CHILD, parent = %" PRIdPTR, event[0].data); 144 #else 145 printf(" NOTE_CHILD, parent = %" PRId64, event[0].data); 146 #endif 147 148 printf("\n"); 149 } 150 151 (void)waitpid(pid, &status, 0); 152 } 153 154 ATF_TP_ADD_TCS(tp) 155 { 156 ATF_TP_ADD_TC(tp, proc1); 157 158 return atf_no_error(); 159 } 160