Re: ps buffer is incorrectly padded on the (latest) OS X - Mailing list pgsql-hackers

From Tom Lane
Subject Re: ps buffer is incorrectly padded on the (latest) OS X
Date
Msg-id 2758.1283629278@sss.pgh.pa.us
Whole thread Raw
In response to Re: ps buffer is incorrectly padded on the (latest) OS X  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: ps buffer is incorrectly padded on the (latest) OS X  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
List pgsql-hackers
I wrote:
> I tried this on a PPC Mac running 10.4.11, which is the oldest Mac OS
> I have handy at the moment.  It worked fine.  The existing coding in
> ps_status.c dates from late 2001, which means that it was first tested
> against OS X 10.1, and most likely we have not rechecked the question
> of what PS_PADDING value to use since then.  My guess is that Apple
> must have changed this in OS X 10.2 or 10.3, because the userland
> Unix utilities were pretty well settled after that.

Just for the archives' sake: I dug through the OS X source code archives
and confirmed that this behavior changed at 10.3: compare getproclline
in 10.2.8
http://www.opensource.apple.com/source/adv_cmds/adv_cmds-46/ps.tproj/print.c
vs 10.3
http://www.opensource.apple.com/source/adv_cmds/adv_cmds-63/ps.tproj/print.c

So we don't need a version check unless you're worried about somebody
trying to run Postgres 9.x on OS X 10.2 (which was retired in 2003).
        regards, tom lane


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