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Fix Y2K bug in date parser reported by Trevin Beattie in PR y2k/9123.

This commit is contained in:
tron 2000-01-05 21:34:11 +00:00
parent dc86769bb7
commit 5f388312a6
1 changed files with 7 additions and 4 deletions
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11
gnu/usr.bin/tar/getdate.y
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@ -1,5 +1,5 @@
%{
/* $NetBSD: getdate.y,v 1.4 1998/01/05 04:54:16 perry Exp $
/* $NetBSD: getdate.y,v 1.5 2000/01/05 21:34:11 tron Exp $
**
** Originally written by Steven M. Bellovin <smb@research.att.com> while
** at the University of North Carolina at Chapel Hill. Later tweaked by
@ -98,7 +98,7 @@ extern struct tm *localtime();
#if !defined(lint) && !defined(SABER)
static char RCS[] =
"$NetBSD: getdate.y,v 1.4 1998/01/05 04:54:16 perry Exp $";
"$NetBSD: getdate.y,v 1.5 2000/01/05 21:34:11 tron Exp $";
#endif /* !defined(lint) && !defined(SABER) */
@ -612,11 +612,14 @@ Convert(Month, Day, Year, Hours, Minutes, Seconds, Meridian, DSTmode)
if (Year < 0)
Year = -Year;
if (Year < 100)
if (Year < 100) {
Year += 1900;
if (Year < EPOCH)
Year += 100;
}
DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0)
? 29 : 28;
if (Year < EPOCH || Year > 1999
if (Year < EPOCH || Year > 9999
|| Month < 1 || Month > 12
/* Lint fluff: "conversion from long may lose accuracy" */
|| Day < 1 || Day > DaysInMonth[(int)--Month])