#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <time.h>

static int

do_test (void)

{

  struct tm time_str, *tm;

  time_t t;

  char daybuf[20];

  int result;

  time_str.tm_year = 2001 - 1900;

  time_str.tm_mon = 7 - 1;

  time_str.tm_mday = 4;

  time_str.tm_hour = 0;

  time_str.tm_min = 0;

  time_str.tm_sec = 1;

  time_str.tm_isdst = -1;

  if (mktime (&time_str) == -1)

    {

      (void) puts ("-unknown-");

      result = 1;

    }

  else

    {

      (void) strftime (daybuf, sizeof (daybuf), "%A", &time_str);

      (void) puts (daybuf);

      result = strcmp (daybuf, "Wednesday") != 0;

    }

  setenv ("TZ", "EST+5", 1);

#define EVENING69 1 * 60 * 60 + 2 * 60 + 29

  t = EVENING69;

  tm = localtime (&t);

  if (tm == NULL)

    {

      (void) puts ("localtime returned NULL");

      result = 1;

    }

  else

    {

      time_str = *tm;

      t = mktime (&time_str);

      if (t != EVENING69)

        {

          printf ("mktime returned %ld, expected %d\n",

		  (long) t, EVENING69);

	  result = 1;

        }

      else

        (void) puts ("Dec 31 1969 EST test passed");

      setenv ("TZ", "CET-1", 1);

      t = mktime (&time_str);

#define EVENING69_CET (EVENING69 - (5 - -1) * 60 * 60)

      if (t != EVENING69_CET)

        {

	  printf ("mktime returned %ld, expected %ld\n",

		  (long) t, (long) EVENING69_CET);

	  result = 1;

        }

      else

        (void) puts ("Dec 31 1969 CET test passed");

    }

  return result;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"