Date: Tue, 5 Jan 1999 17:29:07 +0900 (JST) From: ishisone@sra.co.jp To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: bin/9323: year 2000 problem with /usr/bin/touch Message-ID: <199901050829.RAA29543@srapc459.sra.co.jp>
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>Number: 9323
>Category: bin
>Synopsis: year 2000 problem with /usr/bin/touch
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jan 5 00:30:01 PST 1999
>Closed-Date:
>Last-Modified:
>Originator: Makoto Ishisone
>Release: FreeBSD 2.2.7-RELEASE i386
>Organization:
Software Research Associates, Inc.
>Environment:
>Description:
When used in its obsolescent form (where the time is specified as the
first argument), /usr/bin/touch doesn't treat the two-digit year
specification correctly. Years in the range of 00-68 should be treated
as 2000-2068 according to the online manual, but actually they are
treated as 1900-1968.
Here's an excerpt from the manual's `COMPATIBILITY' section:
If the ``YY'' letter pair is in the range 69 to 99, the year
is set to 1969 to 1999, otherwise, the year is set in the 21st
century.
>How-To-Repeat:
Try following commands. You'll find that the modification time of
the file is 1910, not 2010.
% touch 0101000010 /tmp/touchme
% ls -l /tmp/touchme
>Fix:
*** touch.c.org Fri Jul 17 16:25:26 1998
--- touch.c Tue Jan 5 16:10:45 1999
***************
*** 260,267 ****
t->tm_mday = ATOI2(arg);
t->tm_hour = ATOI2(arg);
t->tm_min = ATOI2(arg);
! if (year)
t->tm_year = ATOI2(arg);
t->tm_isdst = -1; /* Figure out DST. */
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
--- 260,270 ----
t->tm_mday = ATOI2(arg);
t->tm_hour = ATOI2(arg);
t->tm_min = ATOI2(arg);
! if (year) {
t->tm_year = ATOI2(arg);
+ if (t->tm_year < 69)
+ t->tm_year += 100;
+ }
t->tm_isdst = -1; /* Figure out DST. */
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
>Release-Note:
>Audit-Trail:
>Unformatted:
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