1 /* $NetBSD: t_getitimer.c,v 1.2 2012/03/22 18:20:46 christos 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 Jukka Ruohonen.
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 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_getitimer.c,v 1.2 2012/03/22 18:20:46 christos Exp $");
33
34 #include <sys/time.h>
35
36 #include <atf-c.h>
37 #include <errno.h>
38 #include <limits.h>
39 #include <signal.h>
40 #include <string.h>
41 #include <unistd.h>
42
43 static bool fail;
44 static void sighandler(int);
45
46 static void
sighandler(int signo)47 sighandler(int signo)
48 {
49
50 if (signo == SIGALRM || signo == SIGVTALRM)
51 fail = false;
52 }
53
54 ATF_TC(getitimer_empty);
ATF_TC_HEAD(getitimer_empty,tc)55 ATF_TC_HEAD(getitimer_empty, tc)
56 {
57 atf_tc_set_md_var(tc, "descr", "getitimer(2) before setitimer(2)");
58 }
59
ATF_TC_BODY(getitimer_empty,tc)60 ATF_TC_BODY(getitimer_empty, tc)
61 {
62 struct itimerval it;
63
64 /*
65 * Verify that the passed structure remains
66 * empty after calling getitimer(2) but before
67 * actually arming the timer with setitimer(2).
68 */
69 (void)memset(&it, 0, sizeof(struct itimerval));
70
71 ATF_REQUIRE(getitimer(ITIMER_REAL, &it) == 0);
72
73 if (it.it_value.tv_sec != 0 || it.it_value.tv_usec != 0)
74 goto fail;
75
76 ATF_REQUIRE(getitimer(ITIMER_VIRTUAL, &it) == 0);
77
78 if (it.it_value.tv_sec != 0 || it.it_value.tv_usec != 0)
79 goto fail;
80
81 ATF_REQUIRE(getitimer(ITIMER_PROF, &it) == 0);
82
83 if (it.it_value.tv_sec != 0 || it.it_value.tv_usec != 0)
84 goto fail;
85
86 return;
87
88 fail:
89 atf_tc_fail("getitimer(2) modfied the timer before it was armed");
90 }
91
92 ATF_TC(getitimer_err);
ATF_TC_HEAD(getitimer_err,tc)93 ATF_TC_HEAD(getitimer_err, tc)
94 {
95 atf_tc_set_md_var(tc, "descr", "Test errors from getitimer(2)");
96 }
97
ATF_TC_BODY(getitimer_err,tc)98 ATF_TC_BODY(getitimer_err, tc)
99 {
100 struct itimerval it;
101
102 errno = 0;
103 ATF_REQUIRE_ERRNO(EINVAL, getitimer(-1, &it) == -1);
104
105 errno = 0;
106 ATF_REQUIRE_ERRNO(EINVAL, getitimer(INT_MAX, &it) == -1);
107
108 errno = 0;
109 ATF_REQUIRE_ERRNO(EFAULT, getitimer(ITIMER_REAL, (void *)-1) == -1);
110 }
111
112 ATF_TC(setitimer_basic);
ATF_TC_HEAD(setitimer_basic,tc)113 ATF_TC_HEAD(setitimer_basic, tc)
114 {
115 atf_tc_set_md_var(tc, "descr", "A basic test of setitimer(2)");
116 }
117
ATF_TC_BODY(setitimer_basic,tc)118 ATF_TC_BODY(setitimer_basic, tc)
119 {
120 struct itimerval it;
121
122 it.it_value.tv_sec = 0;
123 it.it_value.tv_usec = 100;
124
125 it.it_interval.tv_sec = 0;
126 it.it_interval.tv_usec = 0;
127
128 fail = true;
129
130 ATF_REQUIRE(signal(SIGALRM, sighandler) != SIG_ERR);
131 ATF_REQUIRE(setitimer(ITIMER_REAL, &it, NULL) == 0);
132
133 /*
134 * Although the interaction between
135 * setitimer(2) and sleep(3) can be
136 * unspecified, it is assumed that one
137 * second suspension will be enough for
138 * the timer to fire.
139 */
140 (void)sleep(1);
141
142 if (fail != false)
143 atf_tc_fail("timer did not fire");
144 }
145
146 ATF_TC(setitimer_err);
ATF_TC_HEAD(setitimer_err,tc)147 ATF_TC_HEAD(setitimer_err, tc)
148 {
149 atf_tc_set_md_var(tc, "descr", "Test errors from setitimer(2)"
150 " (PR standards/44927)");
151 }
152
ATF_TC_BODY(setitimer_err,tc)153 ATF_TC_BODY(setitimer_err, tc)
154 {
155 struct itimerval it, ot;
156
157 errno = 0;
158 ATF_REQUIRE_ERRNO(EINVAL, setitimer(-1, &it, &ot) == -1);
159
160 errno = 0;
161 ATF_REQUIRE_ERRNO(EINVAL, setitimer(INT_MAX, &it, &ot) == -1);
162
163 errno = 0;
164 ATF_REQUIRE_ERRNO(EFAULT, setitimer(ITIMER_REAL,(void*)-1, &ot) == -1);
165 }
166
167 ATF_TC(setitimer_old);
ATF_TC_HEAD(setitimer_old,tc)168 ATF_TC_HEAD(setitimer_old, tc)
169 {
170 atf_tc_set_md_var(tc, "descr", "Test old values from setitimer(2)");
171 }
172
ATF_TC_BODY(setitimer_old,tc)173 ATF_TC_BODY(setitimer_old, tc)
174 {
175 struct itimerval it, ot;
176
177 /*
178 * Make two calls; the second one
179 * should store the old values.
180 */
181 it.it_value.tv_sec = 4;
182 it.it_value.tv_usec = 3;
183
184 it.it_interval.tv_sec = 0;
185 it.it_interval.tv_usec = 0;
186
187 ATF_REQUIRE(setitimer(ITIMER_REAL, &it, &ot) == 0);
188
189 it.it_value.tv_sec = 2;
190 it.it_value.tv_usec = 1;
191
192 it.it_interval.tv_sec = 0;
193 it.it_interval.tv_usec = 0;
194
195 ATF_REQUIRE(setitimer(ITIMER_REAL, &it, &ot) == 0);
196
197 #ifdef __FreeBSD__
198 ATF_REQUIRE_MSG((ot.it_value.tv_sec < 4) ||
199 (ot.it_value.tv_sec == 4 && ot.it_value.tv_usec <= 3),
200 "setitimer(2) returned invalid it_value: %jd %jd",
201 (intmax_t)ot.it_value.tv_sec, (intmax_t)ot.it_value.tv_usec);
202 #else
203 if (ot.it_value.tv_sec != 4 || ot.it_value.tv_usec != 3)
204 atf_tc_fail("setitimer(2) did not store old values");
205 #endif
206 }
207
ATF_TP_ADD_TCS(tp)208 ATF_TP_ADD_TCS(tp)
209 {
210
211 ATF_TP_ADD_TC(tp, getitimer_empty);
212 ATF_TP_ADD_TC(tp, getitimer_err);
213 ATF_TP_ADD_TC(tp, setitimer_basic);
214 ATF_TP_ADD_TC(tp, setitimer_err);
215 ATF_TP_ADD_TC(tp, setitimer_old);
216
217 return atf_no_error();
218 }
219