Path: utzoo!mnetor!uunet!husc6!uwvax!umn-d-ub!umn-cs!bungia!com50!ems!datapg!sewilco
From: sewilco@datapg.DataPg.MN.ORG (Scot E. Wilcoxon)
Newsgroups: comp.sources.d
Subject: Bug found in PD 'localtime'
Message-ID: <755@datapg.DataPg.MN.ORG>
Date: 13 Apr 88 21:50:33 GMT
Reply-To: sewilco@DataPg.MN.ORG (Scot E. Wilcoxon)
Organization: Data Progress
Lines: 16

I found the bug which I earlier mentioned.  I'll leave comp.sources.bugs
for the author to post an official fix.

My symptom was 'zic' creating small files with zeroes instead of data for
zones with DST (ie, EST5 OK and EST5EDT bad).

The problem turned out to be "min_year" and "max_year" were both 2038 A.D.,
caused by a bug in gmtime(3) where called by setboundaries() in zic.  A note
in 'timemk.c' says there is a bug in System VR2.0 and BSD4.3 localtime(3),
so many people might notice it.

I fixed it by hardwiring 1970 for min_year in setboundaries() via a #define.
This machine is an AT&T 3B1, with CT-flavored System V.
-- 
Scot E. Wilcoxon  sewilco@DataPg.MN.ORG    {amdahl|hpda}!bungia!datapg!sewilco
Data Progress	  UNIX consulting    +1 612-825-2607      uunet!datapg!sewilco