bin/42549: year2038 problem in parsedate(3)

[tsutsui%ceres.dti.ne.jp@localhost]

>Number:         42549
>Category:       bin
>Synopsis:       year2038 problem in parsedate(3)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Dec 31 06:05:00 +0000 2009
>Originator:     Izumi Tsutsui
>Release:        NetBSD 5.99.22
>Organization:
>Environment:
System: NetBSD 5.99.22 updated around 20091213
Architecture: i386
Machine: i386
>Description:
parsedate(3) in libutil doesn't decode date with year >2038.

>How-To-Repeat:
% date
Thu Dec 31 14:53:21 JST 2009
% date -d 20381231
Fri Dec 31 00:00:00 JST 2038
% date -d 20391231
date: Cannot parse `20391231'
% date -d 20991231
date: Cannot parse `20991231'

>Fix:
Remove Year > 2038 check in src/lib/libutil/parsedate.y ?

---
    /* Checking for 2038 bogusly assumes that time_t is 32 bits.  But
       I'm too lazy to try to check for time_t overflow in another way.  */
    if (Year < EPOCH || Year > 2038
---