t_proc2.c revision 1.1.2.2
1 1.1.2.2 jym /* $NetBSD: t_proc2.c,v 1.1.2.2 2009/05/13 19:19:33 jym Exp $ */ 2 1.1.2.2 jym 3 1.1.2.2 jym /*- 4 1.1.2.2 jym * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 1.1.2.2 jym * All rights reserved. 6 1.1.2.2 jym * 7 1.1.2.2 jym * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 jym * by Peter Werner <Peter.Werner (at) wgsn.com>. 9 1.1.2.2 jym * 10 1.1.2.2 jym * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 jym * modification, are permitted provided that the following conditions 12 1.1.2.2 jym * are met: 13 1.1.2.2 jym * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 jym * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 jym * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 jym * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 jym * documentation and/or other materials provided with the distribution. 18 1.1.2.2 jym * 19 1.1.2.2 jym * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.1.2.2 jym * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.1.2.2 jym * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.1.2.2 jym * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.1.2.2 jym * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.1.2.2 jym * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.1.2.2 jym * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.1.2.2 jym * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.1.2.2 jym * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.1.2.2 jym * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.1.2.2 jym * POSSIBILITY OF SUCH DAMAGE. 30 1.1.2.2 jym */ 31 1.1.2.2 jym 32 1.1.2.2 jym #include <sys/cdefs.h> 33 1.1.2.2 jym __COPYRIGHT("@(#) Copyright (c) 2008\ 34 1.1.2.2 jym The NetBSD Foundation, inc. All rights reserved."); 35 1.1.2.2 jym __RCSID("$NetBSD: t_proc2.c,v 1.1.2.2 2009/05/13 19:19:33 jym Exp $"); 36 1.1.2.2 jym 37 1.1.2.2 jym #include <sys/event.h> 38 1.1.2.2 jym #include <sys/time.h> 39 1.1.2.2 jym #include <sys/types.h> 40 1.1.2.2 jym #include <sys/wait.h> 41 1.1.2.2 jym 42 1.1.2.2 jym #include <err.h> 43 1.1.2.2 jym #include <pwd.h> 44 1.1.2.2 jym #include <stdio.h> 45 1.1.2.2 jym #include <stdlib.h> 46 1.1.2.2 jym #include <unistd.h> 47 1.1.2.2 jym 48 1.1.2.2 jym #include <atf-c.h> 49 1.1.2.2 jym 50 1.1.2.2 jym #include "../../h_macros.h" 51 1.1.2.2 jym 52 1.1.2.2 jym static void 53 1.1.2.2 jym child_two(void) 54 1.1.2.2 jym { 55 1.1.2.2 jym _exit(EXIT_SUCCESS); 56 1.1.2.2 jym } 57 1.1.2.2 jym 58 1.1.2.2 jym static void 59 1.1.2.2 jym child_one(void) 60 1.1.2.2 jym { 61 1.1.2.2 jym pid_t pid; 62 1.1.2.2 jym struct passwd *pwd; 63 1.1.2.2 jym const char *nam = "nobody"; 64 1.1.2.2 jym 65 1.1.2.2 jym pwd = getpwnam(nam); 66 1.1.2.2 jym if (pwd == NULL) 67 1.1.2.2 jym err(EXIT_FAILURE, "getpwnam(\"%s\")", nam); 68 1.1.2.2 jym 69 1.1.2.2 jym if ((setuid(pwd->pw_uid)) == -1) 70 1.1.2.2 jym err(EXIT_FAILURE, "setuid(%d)", pwd->pw_uid); 71 1.1.2.2 jym 72 1.1.2.2 jym pid = fork(); 73 1.1.2.2 jym if (pid == -1) 74 1.1.2.2 jym err(EXIT_FAILURE, "fork()"); 75 1.1.2.2 jym 76 1.1.2.2 jym if (pid == 0) 77 1.1.2.2 jym child_two(); 78 1.1.2.2 jym 79 1.1.2.2 jym _exit(EXIT_SUCCESS); 80 1.1.2.2 jym } 81 1.1.2.2 jym 82 1.1.2.2 jym ATF_TC(proc2); 83 1.1.2.2 jym ATF_TC_HEAD(proc2, tc) 84 1.1.2.2 jym { 85 1.1.2.2 jym atf_tc_set_md_var(tc, "require.user", "root"); 86 1.1.2.2 jym atf_tc_set_md_var(tc, "descr", 87 1.1.2.2 jym "Checks EVFILT_PROC for NOTE_FORK|NOTE_TRACK error path problem " 88 1.1.2.2 jym "fixed in rev. 1.1.1.1.2.17 of sys/kern/kern_event.c"); 89 1.1.2.2 jym } 90 1.1.2.2 jym ATF_TC_BODY(proc2, tc) 91 1.1.2.2 jym { 92 1.1.2.2 jym pid_t pid = 0; 93 1.1.2.2 jym int kq, status; 94 1.1.2.2 jym struct kevent ke; 95 1.1.2.2 jym struct timespec timeout; 96 1.1.2.2 jym 97 1.1.2.2 jym RL(kq = kqueue()); 98 1.1.2.2 jym 99 1.1.2.2 jym timeout.tv_sec = 0; 100 1.1.2.2 jym timeout.tv_nsec = 0; 101 1.1.2.2 jym 102 1.1.2.2 jym RL(pid = fork()); 103 1.1.2.2 jym if (pid == 0) { 104 1.1.2.2 jym (void)sleep(1); /* let parent set kevent */ 105 1.1.2.2 jym child_one(); 106 1.1.2.2 jym /* NOTREACHED */ 107 1.1.2.2 jym } 108 1.1.2.2 jym 109 1.1.2.2 jym EV_SET(&ke, pid, EVFILT_PROC, EV_ADD, NOTE_FORK|NOTE_TRACK, 0, 0); 110 1.1.2.2 jym 111 1.1.2.2 jym RL(kevent(kq, &ke, 1, NULL, 0, &timeout)); 112 1.1.2.2 jym 113 1.1.2.2 jym (void)sleep(2); 114 1.1.2.2 jym 115 1.1.2.2 jym ke.ident = 0; 116 1.1.2.2 jym ke.fflags = 0; 117 1.1.2.2 jym ke.flags = EV_ENABLE; 118 1.1.2.2 jym 119 1.1.2.2 jym RL(kevent(kq, NULL, 0, &ke, 1, &timeout)); 120 1.1.2.2 jym RL(close(kq)); 121 1.1.2.2 jym 122 1.1.2.2 jym RL(waitpid(pid, &status, 0)); 123 1.1.2.2 jym ATF_REQUIRE(WIFEXITED(status)); 124 1.1.2.2 jym ATF_REQUIRE_EQ(WEXITSTATUS(status), EXIT_SUCCESS); 125 1.1.2.2 jym 126 1.1.2.2 jym /* 127 1.1.2.2 jym * we are expecting an error here as we should not have 128 1.1.2.2 jym * been able to add a knote to child 2. 129 1.1.2.2 jym */ 130 1.1.2.2 jym ATF_REQUIRE(ke.fflags & NOTE_TRACKERR); 131 1.1.2.2 jym } 132 1.1.2.2 jym 133 1.1.2.2 jym ATF_TP_ADD_TCS(tp) 134 1.1.2.2 jym { 135 1.1.2.2 jym ATF_TP_ADD_TC(tp, proc2); 136 1.1.2.2 jym 137 1.1.2.2 jym return atf_no_error(); 138 1.1.2.2 jym } 139
Indexes created Mon Oct 27 20:09:55 GMT 2025