Re: BUG #16080: pg_ctl is failed if a fake cmd.exe exist in the current directory.

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Juan José Santamaría Flecha <juanjo(dot)santamaria(at)gmail(dot)com>
Cc: cilizili(at)protonmail(dot)com, pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: BUG #16080: pg_ctl is failed if a fake cmd.exe exist in the current directory.
Date: 2019-10-26 17:44:00
Message-ID: 857.1572111840@sss.pgh.pa.us
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=?UTF-8?Q?Juan_Jos=C3=A9_Santamar=C3=ADa_Flecha?= <juanjo(dot)santamaria(at)gmail(dot)com> writes:
> On Sat, Oct 26, 2019 at 5:20 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Right, but does cmd.exe have a well-defined location in Windows?
>> I don't think we can know which drive it's on, for starters.

> The environment variable COMSPEC [1] should point to the right location.

Hm. I don't have any objection to using COMSPEC if it's set, but
of course that changes nothing from a security perspective. It's
just a different route by which pg_ctl, pg_upgrade, etc can be
misled.

regards, tom lane

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