1/* $NetBSD: t_mktime.c,v 1.5 2012/03/18 07:33:58 jruoho 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
36ATF_TC(localtime_r_gmt);
37ATF_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
43ATF_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
59ATF_TC(mktime_negyear);
60ATF_TC_HEAD(mktime_negyear, tc)
61{
62	atf_tc_set_md_var(tc, "descr", "Test mktime(3) with negative year");
63}
64
65ATF_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 = ~0;
72
73	errno = 0;
74	t = mktime(&tms);
75	ATF_REQUIRE_ERRNO(0, t != (time_t)-1);
76}
77
78ATF_TC(timegm_epoch);
79ATF_TC_HEAD(timegm_epoch, tc)
80{
81	atf_tc_set_md_var(tc, "descr", "Test timegm(3) close to the epoch");
82}
83
84ATF_TC_BODY(timegm_epoch, tc)
85{
86	struct tm tms;
87	time_t t;
88
89	/* midnight on 1 Jan 1970 */
90	(void)memset(&tms, 0, sizeof(tms));
91	errno = 0;
92	tms.tm_year = 1970 - 1900;
93	tms.tm_mday = 1;
94	t = timegm(&tms);
95	ATF_REQUIRE_ERRNO(0, t == (time_t)0);
96
97	/* one second after midnight on 1 Jan 1970 */
98	(void)memset(&tms, 0, sizeof(tms));
99	errno = 0;
100	tms.tm_year = 1970 - 1900;
101	tms.tm_mday = 1;
102	tms.tm_sec = 1;
103	t = timegm(&tms);
104	ATF_REQUIRE_ERRNO(0, t == (time_t)1);
105
106	/*
107	 * 1969-12-31 23:59:59 = one second before the epoch.
108	 * Result should be -1 with errno = 0.
109	 */
110	(void)memset(&tms, 0, sizeof(tms));
111	errno = 0;
112	tms.tm_year = 1969 - 1900;
113	tms.tm_mon = 12 - 1;
114	tms.tm_mday = 31;
115	tms.tm_hour = 23;
116	tms.tm_min = 59;
117	tms.tm_sec = 59;
118	t = timegm(&tms);
119	ATF_REQUIRE_ERRNO(0, t == (time_t)-1);
120
121	/*
122	 * Another way of getting one second before the epoch:
123	 * Set date to 1 Jan 1970, and time to -1 second.
124	 */
125	(void)memset(&tms, 0, sizeof(tms));
126	errno = 0;
127	tms.tm_year = 1970 - 1900;
128	tms.tm_mday = 1;
129	tms.tm_sec = -1;
130	t = timegm(&tms);
131	ATF_REQUIRE_ERRNO(0, t == (time_t)-1);
132
133	/*
134	 * Two seconds before the epoch.
135	 */
136	(void)memset(&tms, 0, sizeof(tms));
137	errno = 0;
138	tms.tm_year = 1970 - 1900;
139	tms.tm_mday = 1;
140	tms.tm_sec = -2;
141	t = timegm(&tms);
142	ATF_REQUIRE_ERRNO(0, t == (time_t)-2);
143
144}
145
146
147ATF_TP_ADD_TCS(tp)
148{
149
150	ATF_TP_ADD_TC(tp, localtime_r_gmt);
151	ATF_TP_ADD_TC(tp, mktime_negyear);
152	ATF_TP_ADD_TC(tp, timegm_epoch);
153
154	return atf_no_error();
155}
156