From: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
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To: | Robert Haas <robertmhaas(at)gmail(dot)com>, David Steele <david(at)pgmasters(dot)net> |
Cc: | "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Stephen Frost <sfrost(at)snowman(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Adam Brightwell <adam(dot)brightwell(at)crunchydata(dot)com> |
Subject: | Re: PATCH: Configurable file mode mask |
Date: | 2018-01-09 01:58:29 |
Message-ID: | 2caea453-0ac8-bf98-7623-3afbcb2d1372@2ndquadrant.com |
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Lists: | pgsql-hackers |
On 1/3/18 08:11, Robert Haas wrote:
> On Tue, Jan 2, 2018 at 11:43 AM, David Steele <david(at)pgmasters(dot)net> wrote:
>>>> I think MakeDirectory() is a good wrapper, but isn't
>>> MakeDirectoryPerm() sort of silly?
>>
>> There's one place in the backend (storage/ipc/ipc.c) that sets non-default
>> directory permissions. This function is intended to support that and any
>> extensions that need to set custom perms.
>
> Yeah, but all it does is call mkdir(), which could just as well be
> called directly. I think there's a pointer to a wrapper when it does
> something for you -- supply an argument, log something, handle
> portability concerns -- but this wrapper does exactly nothing.
Yeah, I didn't like this aspect when this patch was originally
submitted. We want to keep the code legible for future new
contributors. Having these generic-sounding but specific-in-purpose
wrapper functions can be pretty confusing. Let's use mkdir() when it's
the appropriate function, and let's figure out a different name for
"make a data directory subdirectory in a secure and robust way".
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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