Update.
[glibc.git] / timezone / tst-timezone.c
blobedff458abd99d4e9b0c165ef48afdc6f1740033f
1 /* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1998.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 #include <time.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <unistd.h>
26 int failed = 0;
28 struct test_times
30 const char *name;
31 int daylight;
32 int timezone;
33 const char *tzname[2];
36 static const struct test_times tests[] =
38 { "Europe/Amsterdam", 1, -3600, { "CET", "CEST" }},
39 { "Europe/Berlin", 1, -3600, { "CET", "CEST" }},
40 { "Europe/London", 1, 0, { "GMT", "BST" }},
41 { "Universal", 0, 0, {"UTC", "UTC" }},
42 { "Australia/Melbourne", 1, -36000, { "EST", "EST" }},
43 { "America/Sao_Paulo", 1, 10800, {"BRT", "BRST" }},
44 { "America/Chicago", 1, 21600, {"CST", "CDT" }},
45 { "America/Indianapolis", 1, 18000, {"EST", "EDT" }},
46 { "America/Los_Angeles", 1, 28800, {"PST", "PDT" }},
47 { "Asia/Tokyo", 0, -32400, {"JST", "JST" }},
48 { "Pacific/Auckland", 1, -43200, { "NZST", "NZDT" }},
49 { NULL, 0, 0 }
52 /* This string will be used for `putenv' calls. */
53 char envstring[100];
55 void
56 print_tzvars (void)
58 printf ("tzname[0]: %s\n", tzname[0]);
59 printf ("tzname[1]: %s\n", tzname[1]);
60 printf ("daylight: %d\n", daylight);
61 printf ("timezone: %ld\n", timezone);
65 void
66 check_tzvars (const char *name, int dayl, int timez, const char *const tznam[])
68 int i;
70 if (daylight != dayl)
72 printf ("*** Timezone: %s, daylight is: %d but should be: %d\n",
73 name, daylight, dayl);
74 ++failed;
76 if (timezone != timez)
78 printf ("*** Timezone: %s, timezone is: %ld but should be: %d\n",
79 name, timezone, timez);
80 ++failed;
82 for (i = 0; i <= 1; ++i)
83 if (strcmp (tzname[i], tznam[i]) != 0)
85 printf ("*** Timezone: %s, tzname[%d] is: %s but should be: %s\n",
86 name, i, tzname[i], tznam[i]);
87 ++failed;
92 int
93 main (int argc, char ** argv)
95 time_t t;
96 const struct test_times *pt;
97 char buf[BUFSIZ];
99 /* This should be: Fri May 15 01:02:16 1998 (UTC). */
100 t = 895194136;
101 printf ("We use this date: %s\n", asctime (gmtime (&t)));
103 for (pt = tests; pt->name != NULL; ++pt)
105 /* Start with a known state */
106 printf ("Checking timezone %s\n", pt->name);
107 sprintf (buf, "TZ=%s", pt->name);
108 if (putenv (buf))
110 puts ("putenv failed.");
111 failed = 1;
113 tzset ();
114 print_tzvars ();
115 check_tzvars (pt->name, pt->daylight, pt->timezone, pt->tzname);
117 /* calling localtime shouldn't make a difference */
118 localtime (&t);
119 print_tzvars ();
120 check_tzvars (pt->name, pt->daylight, pt->timezone, pt->tzname);
123 /* From a post of Scott Harrington <seh4@ix.netcom.com> to the timezone
124 mailing list. */
126 struct tm tmBuf = {0, 0, 0, 10, 3, 98, 0, 0, -1};
127 char buf[200];
128 strcpy (envstring, "TZ=Europe/London");
129 putenv (envstring);
130 t = mktime (&tmBuf);
131 snprintf (buf, sizeof (buf), "TZ=%s %ld %d %d %d %d %d %d %d %d %d",
132 getenv ("TZ"), t,
133 tmBuf.tm_sec, tmBuf.tm_min, tmBuf.tm_hour,
134 tmBuf.tm_mday, tmBuf.tm_mon, tmBuf.tm_year,
135 tmBuf.tm_wday, tmBuf.tm_yday, tmBuf.tm_isdst);
136 fputs (buf, stdout);
137 puts (" should be");
138 puts ("TZ=Europe/London 892162800 0 0 0 10 3 98 5 99 1");
139 if (strcmp (buf, "TZ=Europe/London 892162800 0 0 0 10 3 98 5 99 1") != 0)
141 failed = 1;
142 fputs (" FAILED ***", stdout);
146 printf("\n");
149 struct tm tmBuf = {0, 0, 0, 10, 3, 98, 0, 0, -1};
150 char buf[200];
151 strcpy (envstring, "TZ=GMT");
152 /* No putenv call needed! */
153 t = mktime (&tmBuf);
154 snprintf (buf, sizeof (buf), "TZ=%s %ld %d %d %d %d %d %d %d %d %d",
155 getenv ("TZ"), t,
156 tmBuf.tm_sec, tmBuf.tm_min, tmBuf.tm_hour,
157 tmBuf.tm_mday, tmBuf.tm_mon, tmBuf.tm_year,
158 tmBuf.tm_wday, tmBuf.tm_yday, tmBuf.tm_isdst);
159 fputs (buf, stdout);
160 puts (" should be");
161 puts ("TZ=GMT 892166400 0 0 0 10 3 98 5 99 0");
162 if (strcmp (buf, "TZ=GMT 892166400 0 0 0 10 3 98 5 99 0") != 0)
164 failed = 1;
165 fputs (" FAILED ***", stdout);
169 return failed ? EXIT_FAILURE : EXIT_SUCCESS;