1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/* Copyright (C) 1998-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 1998.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h>
int failed = 0;
struct test_times
{
const char *name;
int daylight;
int timezone;
const char *tzname[2];
};
static const struct test_times tests[] =
{
{ "Europe/Amsterdam", 1, -3600, { "CET", "CEST" }},
{ "Europe/Berlin", 1, -3600, { "CET", "CEST" }},
{ "Europe/London", 1, 0, { "GMT", "BST" }},
{ "Universal", 0, 0, {"UTC", "UTC" }},
{ "Australia/Melbourne", 1, -36000, { "EST", "EST" }},
{ "America/Sao_Paulo", 1, 10800, {"BRT", "BRST" }},
{ "America/Chicago", 1, 21600, {"CST", "CDT" }},
{ "America/Indiana/Indianapolis", 1, 18000, {"EST", "EDT" }},
{ "America/Los_Angeles", 1, 28800, {"PST", "PDT" }},
{ "Pacific/Auckland", 1, -43200, { "NZST", "NZDT" }},
{ NULL, 0, 0 }
};
/* This string will be used for `putenv' calls. */
char envstring[100];
static void
print_tzvars (void)
{
printf ("tzname[0]: %s\n", tzname[0]);
printf ("tzname[1]: %s\n", tzname[1]);
printf ("daylight: %d\n", daylight);
printf ("timezone: %ld\n", timezone);
}
static void
check_tzvars (const char *name, int dayl, int timez, const char *const tznam[])
{
int i;
if (daylight != dayl)
{
printf ("*** Timezone: %s, daylight is: %d but should be: %d\n",
name, daylight, dayl);
++failed;
}
if (timezone != timez)
{
printf ("*** Timezone: %s, timezone is: %ld but should be: %d\n",
name, timezone, timez);
++failed;
}
for (i = 0; i <= 1; ++i)
if (strcmp (tzname[i], tznam[i]) != 0)
{
printf ("*** Timezone: %s, tzname[%d] is: %s but should be: %s\n",
name, i, tzname[i], tznam[i]);
++failed;
}
}
static int
do_test (void)
{
time_t t;
const struct test_times *pt;
char buf[BUFSIZ];
/* This should be: Fri May 15 01:02:16 1998 (UTC). */
t = 895194136;
printf ("We use this date: %s\n", asctime (gmtime (&t)));
for (pt = tests; pt->name != NULL; ++pt)
{
/* Start with a known state */
printf ("Checking timezone %s\n", pt->name);
sprintf (buf, "TZ=%s", pt->name);
if (putenv (buf))
{
puts ("putenv failed.");
failed = 1;
}
tzset ();
print_tzvars ();
check_tzvars (pt->name, pt->daylight, pt->timezone, pt->tzname);
/* calling localtime shouldn't make a difference */
localtime (&t);
print_tzvars ();
check_tzvars (pt->name, pt->daylight, pt->timezone, pt->tzname);
}
/* From a post of Scott Harrington <seh4@ix.netcom.com> to the timezone
mailing list. */
{
struct tm tmBuf = {0, 0, 0, 10, 3, 98, 0, 0, -1};
char buf[200];
strcpy (envstring, "TZ=Europe/London");
putenv (envstring);
t = mktime (&tmBuf);
snprintf (buf, sizeof (buf), "TZ=%s %jd %d %d %d %d %d %d %d %d %d",
getenv ("TZ"), (intmax_t) t,
tmBuf.tm_sec, tmBuf.tm_min, tmBuf.tm_hour,
tmBuf.tm_mday, tmBuf.tm_mon, tmBuf.tm_year,
tmBuf.tm_wday, tmBuf.tm_yday, tmBuf.tm_isdst);
fputs (buf, stdout);
puts (" should be");
puts ("TZ=Europe/London 892162800 0 0 0 10 3 98 5 99 1");
if (strcmp (buf, "TZ=Europe/London 892162800 0 0 0 10 3 98 5 99 1") != 0)
{
failed = 1;
fputs (" FAILED ***", stdout);
}
}
printf("\n");
{
struct tm tmBuf = {0, 0, 0, 10, 3, 98, 0, 0, -1};
char buf[200];
strcpy (envstring, "TZ=GMT");
/* No putenv call needed! */
t = mktime (&tmBuf);
snprintf (buf, sizeof (buf), "TZ=%s %jd %d %d %d %d %d %d %d %d %d",
getenv ("TZ"), (intmax_t) t,
tmBuf.tm_sec, tmBuf.tm_min, tmBuf.tm_hour,
tmBuf.tm_mday, tmBuf.tm_mon, tmBuf.tm_year,
tmBuf.tm_wday, tmBuf.tm_yday, tmBuf.tm_isdst);
fputs (buf, stdout);
puts (" should be");
puts ("TZ=GMT 892166400 0 0 0 10 3 98 5 99 0");
if (strcmp (buf, "TZ=GMT 892166400 0 0 0 10 3 98 5 99 0") != 0)
{
failed = 1;
fputs (" FAILED ***", stdout);
}
}
return failed ? EXIT_FAILURE : EXIT_SUCCESS;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
