Index: src/backend/utils/adt/datetime.c
===================================================================
RCS file: /projects/cvsroot/pgsql-server/src/backend/utils/adt/datetime.c,v
retrieving revision 1.124
diff -c -r1.124 datetime.c
*** src/backend/utils/adt/datetime.c	19 Jan 2004 19:04:40 -0000	1.124
--- src/backend/utils/adt/datetime.c	2 Feb 2004 07:21:47 -0000
***************
*** 1611,1616 ****
--- 1611,1620 ----
  		 * and reassemble to get a representation of local time.
  		 */
  		tx = localtime(&mytime);
+ 		if (!tx)
+ 			ereport(ERROR,
+ 					(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
+ 					 errmsg("timestamp out of range")));
  		day = date2j(tx->tm_year + 1900, tx->tm_mon + 1, tx->tm_mday) -
  			UNIX_EPOCH_JDATE;
  		locsec = tx->tm_sec + (tx->tm_min + (day * 24 + tx->tm_hour) * 60) * 60;
***************
*** 1632,1637 ****
--- 1636,1645 ----
  		mysec += delta1;
  		mytime = (time_t) mysec;
  		tx = localtime(&mytime);
+ 		if (!tx)
+ 			ereport(ERROR,
+ 					(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
+ 					 errmsg("timestamp out of range")));
  		day = date2j(tx->tm_year + 1900, tx->tm_mon + 1, tx->tm_mday) -
  			UNIX_EPOCH_JDATE;
  		locsec = tx->tm_sec + (tx->tm_min + (day * 24 + tx->tm_hour) * 60) * 60;
***************
*** 1653,1658 ****
--- 1661,1670 ----
  			mysec += (delta2 - delta1);
  			mytime = (time_t) mysec;
  			tx = localtime(&mytime);
+ 			if (!tx)
+ 				ereport(ERROR,
+ 						(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
+ 						 errmsg("timestamp out of range")));
  			day = date2j(tx->tm_year + 1900, tx->tm_mon + 1, tx->tm_mday) -
  				UNIX_EPOCH_JDATE;
  			locsec = tx->tm_sec + (tx->tm_min + (day * 24 + tx->tm_hour) * 60) * 60;