1 /* $NetBSD: t_mktime.c,v 1.6 2017/10/27 00:55:27 kre Exp $ */
2
3 /*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <atf-c.h>
30
31 #include <err.h>
32 #include <errno.h>
33 #include <string.h>
34 #include <time.h>
35
36 ATF_TC(localtime_r_gmt);
ATF_TC_HEAD(localtime_r_gmt,tc)37 ATF_TC_HEAD(localtime_r_gmt, tc)
38 {
39 atf_tc_set_md_var(tc, "descr", "Test that localtime_r(3) "
40 "returns localtime, not GMT (PR lib/28324)");
41 }
42
ATF_TC_BODY(localtime_r_gmt,tc)43 ATF_TC_BODY(localtime_r_gmt, tc)
44 {
45 struct tm *t;
46 struct tm tt;
47 time_t x;
48
49 x = time(NULL);
50 localtime_r(&x, &tt);
51 t = localtime(&x);
52
53 if (t->tm_sec != tt.tm_sec || t->tm_min != tt.tm_min ||
54 t->tm_hour != tt.tm_hour || t->tm_mday != tt.tm_mday)
55 atf_tc_fail("inconsistencies between "
56 "localtime(3) and localtime_r(3)");
57 }
58
59 ATF_TC(mktime_negyear);
ATF_TC_HEAD(mktime_negyear,tc)60 ATF_TC_HEAD(mktime_negyear, tc)
61 {
62 atf_tc_set_md_var(tc, "descr", "Test mktime(3) with negative year");
63 }
64
ATF_TC_BODY(mktime_negyear,tc)65 ATF_TC_BODY(mktime_negyear, tc)
66 {
67 struct tm tms;
68 time_t t;
69
70 (void)memset(&tms, 0, sizeof(tms));
71 tms.tm_year = -1;
72 tms.tm_mday = 1;
73
74 errno = 0;
75 t = mktime(&tms);
76 ATF_REQUIRE(t != (time_t)-1);
77 }
78
79 ATF_TC(timegm_epoch);
ATF_TC_HEAD(timegm_epoch,tc)80 ATF_TC_HEAD(timegm_epoch, tc)
81 {
82 atf_tc_set_md_var(tc, "descr", "Test timegm(3) close to the epoch");
83 }
84
ATF_TC_BODY(timegm_epoch,tc)85 ATF_TC_BODY(timegm_epoch, tc)
86 {
87 struct tm tms;
88 time_t t;
89
90 /* midnight on 1 Jan 1970 */
91 (void)memset(&tms, 0, sizeof(tms));
92 errno = 0;
93 tms.tm_year = 1970 - 1900;
94 tms.tm_mday = 1;
95 t = timegm(&tms);
96 ATF_REQUIRE(t == (time_t)0);
97
98 /* one second after midnight on 1 Jan 1970 */
99 (void)memset(&tms, 0, sizeof(tms));
100 errno = 0;
101 tms.tm_year = 1970 - 1900;
102 tms.tm_mday = 1;
103 tms.tm_sec = 1;
104 t = timegm(&tms);
105 ATF_REQUIRE(t == (time_t)1);
106
107 /*
108 * 1969-12-31 23:59:59 = one second before the epoch.
109 * Result should be -1 with errno = 0.
110 */
111 (void)memset(&tms, 0, sizeof(tms));
112 errno = 0;
113 tms.tm_year = 1969 - 1900;
114 tms.tm_mon = 12 - 1;
115 tms.tm_mday = 31;
116 tms.tm_hour = 23;
117 tms.tm_min = 59;
118 tms.tm_sec = 59;
119 t = timegm(&tms);
120 ATF_REQUIRE(t == (time_t)-1);
121 /* ATF_REQUIRE(errno == 0); does not work, errno is kept clear */
122
123 /*
124 * Another way of getting one second before the epoch:
125 * Set date to 1 Jan 1970, and time to -1 second.
126 */
127 (void)memset(&tms, 0, sizeof(tms));
128 errno = 0;
129 tms.tm_year = 1970 - 1900;
130 tms.tm_mday = 1;
131 tms.tm_sec = -1;
132 t = timegm(&tms);
133 ATF_REQUIRE(t == (time_t)-1);
134
135 /*
136 * Two seconds before the epoch.
137 */
138 (void)memset(&tms, 0, sizeof(tms));
139 errno = 0;
140 tms.tm_year = 1970 - 1900;
141 tms.tm_mday = 1;
142 tms.tm_sec = -2;
143 t = timegm(&tms);
144 ATF_REQUIRE(t == (time_t)-2);
145
146 }
147
148
ATF_TP_ADD_TCS(tp)149 ATF_TP_ADD_TCS(tp)
150 {
151
152 ATF_TP_ADD_TC(tp, localtime_r_gmt);
153 ATF_TP_ADD_TC(tp, mktime_negyear);
154 ATF_TP_ADD_TC(tp, timegm_epoch);
155
156 return atf_no_error();
157 }
158