1 /* $NetBSD: t_time.c,v 1.4 2017/01/10 15:32:46 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_time.c,v 1.4 2017/01/10 15:32:46 christos 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 <sys/time.h>
42 #include <unistd.h>
43
44 ATF_TC(time_copy);
ATF_TC_HEAD(time_copy,tc)45 ATF_TC_HEAD(time_copy, tc)
46 {
47 atf_tc_set_md_var(tc, "descr", "Test the return values of time(3)");
48 }
49
ATF_TC_BODY(time_copy,tc)50 ATF_TC_BODY(time_copy, tc)
51 {
52 time_t t1, t2 = 0;
53
54 t1 = time(&t2);
55
56 if (t1 != t2)
57 atf_tc_fail("incorrect return values from time(3)");
58 }
59
60 ATF_TC(time_mono);
ATF_TC_HEAD(time_mono,tc)61 ATF_TC_HEAD(time_mono, tc)
62 {
63 atf_tc_set_md_var(tc, "descr", "Test monotonicity of time(3)");
64 }
65
ATF_TC_BODY(time_mono,tc)66 ATF_TC_BODY(time_mono, tc)
67 {
68 const size_t maxiter = 10;
69 time_t t1, t2;
70 size_t i;
71
72 for (i = 0; i < maxiter; i++) {
73
74 t1 = time(NULL);
75 (void)sleep(1);
76 t2 = time(NULL);
77
78 (void)fprintf(stderr, "%"PRId64" vs. %"PRId64"\n",
79 (int64_t)t1, (int64_t)t2);
80
81 if (t1 >= t2)
82 atf_tc_fail("time(3) is not monotonic");
83 }
84 }
85
86 ATF_TC(time_timeofday);
ATF_TC_HEAD(time_timeofday,tc)87 ATF_TC_HEAD(time_timeofday, tc)
88 {
89 atf_tc_set_md_var(tc, "descr", "Test time(3) vs. gettimeofday(2)");
90 }
91
ATF_TC_BODY(time_timeofday,tc)92 ATF_TC_BODY(time_timeofday, tc)
93 {
94 struct timeval tv = { 0, 0 };
95 time_t t1, t2;
96
97 t1 = time(NULL);
98 ATF_REQUIRE(gettimeofday(&tv, NULL) == 0);
99 t2 = time(NULL);
100
101 (void)fprintf(stderr, "%"PRId64" vs. %"PRId64"\n",
102 (int64_t)t1, (int64_t)tv.tv_sec);
103
104 if (t1 > tv.tv_sec || t2 < tv.tv_sec)
105 atf_tc_fail("time(3) and gettimeofday(2) differ");
106 }
107
ATF_TP_ADD_TCS(tp)108 ATF_TP_ADD_TCS(tp)
109 {
110
111 ATF_TP_ADD_TC(tp, time_copy);
112 ATF_TP_ADD_TC(tp, time_mono);
113 ATF_TP_ADD_TC(tp, time_timeofday);
114
115 return atf_no_error();
116 }
117