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Diffstat (limited to 'test/time/tst-timezone.c')
| -rw-r--r-- | test/time/tst-timezone.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/test/time/tst-timezone.c b/test/time/tst-timezone.c new file mode 100644 index 000000000..4c879163c --- /dev/null +++ b/test/time/tst-timezone.c @@ -0,0 +1,170 @@ +/* Copyright (C) 1998, 1999, 2000, 2005 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, 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/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" }}, + { "Asia/Tokyo", 1, -32400, {"JST", "JDT" }}, + { "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; + } +} + + +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); + } + + /* 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 %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=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 %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"); + 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; +} |