Re: ps buffer is incorrectly padded on the (latest) OS X

On 04/09/10 22:41, Tom Lane wrote:
> 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).

What happens if someone does? Crash, or just wonky ps output? If it's 
the latter, seems safe to backpatch.

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com