Date: Sat, 03 Nov 2007 21:29:29 -0700 From: perryh@pluto.rain.com To: bakul@bitblocks.com Cc: freebsd-hackers@freebsd.org Subject: Re: timezone printing in date messed up? Message-ID: <472d4aa9.3uhaI9p/nWSuFpCL%perryh@pluto.rain.com> In-Reply-To: <20071104025728.2702A5B29@mail.bitblocks.com> References: <20071104025728.2702A5B29@mail.bitblocks.com>
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> > > OS X Leopard has the same bug ... > > > > How did you test it in Leopard? I tried it in Tiger, intending > > to contribute another data point, and I got: > > Leopard's /bin/date accepts -j. You can try compiling FreeBSD > date on Tiger. I had decided against that, since it would propagate the bug if it happened to be in the FreeBSD /bin/date. It turns out the output conversion can be tested using -r: for a in 0 1 2 3 4 5 6 7 8 9 10 11 12 do date -r `expr 1194163200 + 600 \* $a` done and this gives correct results in both Tiger and 6.1: Sun Nov 4 01:00:00 PDT 2007 Sun Nov 4 01:10:00 PDT 2007 Sun Nov 4 01:20:00 PDT 2007 Sun Nov 4 01:30:00 PDT 2007 Sun Nov 4 01:40:00 PDT 2007 Sun Nov 4 01:50:00 PDT 2007 Sun Nov 4 01:00:00 PST 2007 Sun Nov 4 01:10:00 PST 2007 Sun Nov 4 01:20:00 PST 2007 Sun Nov 4 01:30:00 PST 2007 Sun Nov 4 01:40:00 PST 2007 Sun Nov 4 01:50:00 PST 2007 Sun Nov 4 02:00:00 PST 2007 but the original command, run in 6.1, exhibits the bug: for a in 0 1 2 3 4 5 6 7 8 9 10 11 12 do date -j -f %s `expr 1194163200 + 600 \* $a` done Sun Nov 4 01:00:00 PDT 2007 Sun Nov 4 01:10:00 PDT 2007 Sun Nov 4 01:20:00 PDT 2007 Sun Nov 4 01:30:00 PST 2007 Sun Nov 4 01:40:00 PST 2007 Sun Nov 4 01:50:00 PST 2007 Sun Nov 4 01:00:00 PDT 2007 Sun Nov 4 01:10:00 PDT 2007 Sun Nov 4 01:20:00 PDT 2007 Sun Nov 4 01:30:00 PST 2007 Sun Nov 4 01:40:00 PST 2007 Sun Nov 4 01:50:00 PST 2007 Sun Nov 4 02:00:00 PST 2007 Maybe this helps someone familiar with the internals of /bin/date fix it in time for next fall :)
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