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
|
/* Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1998.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.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/Berlin", 1, -3600, { "CET", "CEST" }},
{ "Universal", 0, 0, {"UTC", "UTC" }},
{ "Australia/Melbourne", 1, -36000, { "EST", "EST" }},
{ "America/Sao_Paulo", 1, 10800, {"EST", "EDT" }},
{ "America/Chicago", 1, 21600, {"CST", "CDT" }},
{ "America/Los_Angeles", 1, 28800, {"PST", "PDT" }},
{ "Asia/Tokyo", 0, -32400, {"JST", "JST" }},
{ NULL, 0, 0 }
};
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);
}
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;
}
}
int
main (int argc, char ** argv)
{
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);
}
#if 0
/* From a port 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];
putenv ("TZ=GB");
t = mktime (&tmBuf);
snprintf (buf, sizeof (buf), "TZ=%s %ld %d %d %d %d %d %d %d %d %d",
getenv ("TZ"), 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=GB 892162800 0 0 0 10 3 98 5 99 1");
failed |= strcmp (buf, "TZ=GB 892162800 0 0 0 10 3 98 5 99 1") != 0;
}
printf("\n");
{
struct tm tmBuf = {0, 0, 0, 10, 3, 98, 0, 0, -1};
char buf[200];
putenv ("TZ=GMT");
t = mktime (&tmBuf);
snprintf (buf, sizeof (buf), "TZ=%s %ld %d %d %d %d %d %d %d %d %d",
getenv ("TZ"), 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");
failed |= strcmp (buf, "TZ=GMT 892166400 0 0 0 10 3 98 5 99 0") != 0;
}
#endif
return failed ? EXIT_FAILURE : EXIT_SUCCESS;
}
|
