1 /* $NetBSD: t_time.c,v 1.3 2014/10/31 12:22:38 justin 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_time.c,v 1.3 2014/10/31 12:22:38 justin Exp $");
33
34 #include <atf-c.h>
35 #include <errno.h>
36 #include <inttypes.h>
37 #include <stdint.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <time.h>
41 #include <unistd.h>
42
43 ATF_TC(time_copy);
ATF_TC_HEAD(time_copy,tc)44 ATF_TC_HEAD(time_copy, tc)
45 {
46 atf_tc_set_md_var(tc, "descr", "Test the return values of time(3)");
47 }
48
ATF_TC_BODY(time_copy,tc)49 ATF_TC_BODY(time_copy, tc)
50 {
51 time_t t1, t2 = 0;
52
53 t1 = time(&t2);
54
55 if (t1 != t2)
56 atf_tc_fail("incorrect return values from time(3)");
57 }
58
59 ATF_TC(time_mono);
ATF_TC_HEAD(time_mono,tc)60 ATF_TC_HEAD(time_mono, tc)
61 {
62 atf_tc_set_md_var(tc, "descr", "Test monotonicity of time(3)");
63 }
64
ATF_TC_BODY(time_mono,tc)65 ATF_TC_BODY(time_mono, tc)
66 {
67 const size_t maxiter = 10;
68 time_t t1, t2;
69 size_t i;
70
71 for (i = 0; i < maxiter; i++) {
72
73 t1 = time(NULL);
74 (void)sleep(1);
75 t2 = time(NULL);
76
77 (void)fprintf(stderr, "%"PRId64" vs. %"PRId64"\n",
78 (int64_t)t1, (int64_t)t2);
79
80 if (t1 >= t2)
81 atf_tc_fail("time(3) is not monotonic");
82 }
83 }
84
85 ATF_TC(time_timeofday);
ATF_TC_HEAD(time_timeofday,tc)86 ATF_TC_HEAD(time_timeofday, tc)
87 {
88 atf_tc_set_md_var(tc, "descr", "Test time(3) vs. gettimeofday(2)");
89 }
90
ATF_TC_BODY(time_timeofday,tc)91 ATF_TC_BODY(time_timeofday, tc)
92 {
93 struct timeval tv = { 0, 0 };
94 time_t t1, t2;
95
96 t1 = time(NULL);
97 ATF_REQUIRE(gettimeofday(&tv, NULL) == 0);
98 t2 = time(NULL);
99
100 (void)fprintf(stderr, "%"PRId64" vs. %"PRId64"\n",
101 (int64_t)t1, (int64_t)tv.tv_sec);
102
103 if (t1 > tv.tv_sec || t2 < tv.tv_sec)
104 atf_tc_fail("time(3) and gettimeofday(2) differ");
105 }
106
ATF_TP_ADD_TCS(tp)107 ATF_TP_ADD_TCS(tp)
108 {
109
110 ATF_TP_ADD_TC(tp, time_copy);
111 ATF_TP_ADD_TC(tp, time_mono);
112 ATF_TP_ADD_TC(tp, time_timeofday);
113
114 return atf_no_error();
115 }
116