xref: /freebsd/contrib/netbsd-tests/kernel/kqueue/t_proc3.c (revision 273c26a3c3bea87a241d6879abd4f991db180bf0)
1 /* $NetBSD: t_proc3.c,v 1.2 2015/01/14 22:22:32 christos Exp $ */
2 
3 /*-
4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Joerg Sonnenberger.
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 __RCSID("$NetBSD: t_proc3.c,v 1.2 2015/01/14 22:22:32 christos Exp $");
34 
35 #ifdef __FreeBSD__
36 #include <sys/types.h>
37 #endif
38 #include <sys/event.h>
39 #include <sys/time.h>
40 #include <sys/types.h>
41 #include <sys/wait.h>
42 
43 #include <err.h>
44 #include <pwd.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <unistd.h>
48 
49 #include <atf-c.h>
50 
51 #include "../../h_macros.h"
52 
53 ATF_TC(proc3);
54 ATF_TC_HEAD(proc3, tc)
55 {
56 	atf_tc_set_md_var(tc, "descr",
57 	    "Checks EVFILT_PROC for NOTE_TRACK on self bug ");
58 }
59 
60 ATF_TC_BODY(proc3, tc)
61 {
62 	pid_t pid = 0;
63 	int kq, status;
64 	struct kevent ke;
65 	struct timespec timeout;
66 
67 	RL(kq = kqueue());
68 
69 	EV_SET(&ke, (uintptr_t)getpid(), EVFILT_PROC, EV_ADD, NOTE_TRACK, 0, 0);
70 
71 	RL(kevent(kq, &ke, 1, NULL, 0, NULL));
72 
73 	RL(pid = fork());
74 	if (pid == 0) {
75 		_exit(EXIT_SUCCESS);
76 		/* NOTREACHED */
77 	}
78 
79 	RL(waitpid(pid, &status, 0));
80 	ATF_REQUIRE(WIFEXITED(status));
81 	ATF_REQUIRE_EQ(WEXITSTATUS(status), EXIT_SUCCESS);
82 
83 	timeout.tv_sec = 0;
84 	timeout.tv_nsec = 0;
85 	ke.ident = 0;
86 	ke.fflags = 0;
87 	ke.flags = EV_ENABLE;
88 
89 	RL(kevent(kq, NULL, 0, &ke, 1, &timeout));
90 	RL(close(kq));
91 
92 	ATF_REQUIRE(ke.fflags & NOTE_CHILD);
93 	ATF_REQUIRE((ke.fflags & NOTE_TRACKERR) == 0);
94 	ATF_REQUIRE_EQ((pid_t)ke.ident, pid);
95 }
96 
97 ATF_TP_ADD_TCS(tp)
98 {
99 	ATF_TP_ADD_TC(tp, proc3);
100 
101 	return atf_no_error();
102 }
103