1 files changed, 104 insertions, 0 deletions
diff --git a/timezone/tst-timezone.c b/timezone/tst-timezone.c
new file mode 100644
index 0000000000..49b3621128
--- /dev/null
+++ b/timezone/tst-timezone.c
@@ -0,0 +1,104 @@
+/* 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 <unistd.h>
+
+int failed = 0;
+
+struct test_times
+{
+  const char *name;
+  int daylight;
+  int timezone;
+};
+
+static const struct test_times tests[] =
+{
+  { "Europe/Berlin", 1, -3600 },
+  { "Universal", 0, 0 },
+  { "Australia/Melbourne", 1, -36000 },
+  { "America/Sao_Paulo", 1, 10800 },
+  { 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)
+{
+  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;
+    }
+}
+
+
+int
+main (int argc, char ** argv)
+{
+  time_t t;
+  const struct test_times *pt;
+  char buf[BUFSIZ];
+
+  /* This should be: Thu May 14 18:02:16 1998.  */
+  t = 895194136;
+  printf ("We use this date: %s\n", ctime (&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);
+
+      /* calling localtime shouldn't make a difference */
+      localtime (&t);
+      print_tzvars ();
+      check_tzvars (pt->name, pt->daylight, pt->timezone);
+    }
+
+  return failed ? EXIT_FAILURE : EXIT_SUCCESS;
+}