Re: pg_check_dir comments and implementation mismatch

From: Marco Nenciarini <marco(dot)nenciarini(at)2ndquadrant(dot)it>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: pg_check_dir comments and implementation mismatch
Date: 2015-02-12 14:31:38
Message-ID: 54DCB94A.8000204@2ndquadrant.it
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Il 02/02/15 21:48, Robert Haas ha scritto:
> On Sat, Jan 31, 2015 at 8:28 AM, Marco Nenciarini
> <marco(dot)nenciarini(at)2ndquadrant(dot)it> wrote:
>> Il 30/01/15 03:54, Michael Paquier ha scritto:
>>> On Fri, Jan 30, 2015 at 2:49 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>>> There is at least one other bug in that function now that I look at it:
>>>> in event of a readdir() failure, it neglects to execute closedir().
>>>> Perhaps not too significant since all existing callers will just exit()
>>>> anyway after a failure, but still ...
>>> I would imagine that code scanners like coverity or similar would not
>>> be happy about that. ISTM that it is better to closedir()
>>> appropriately in all the code paths.
>>>
>>
>> I've attached a new version of the patch fixing the missing closedir on
>> readdir error.
>
> If readir() fails and closedir() succeeds, the return will be -1 but
> errno will be 0.
>

The attached patch should fix it.

Regards,
Marco

--
Marco Nenciarini - 2ndQuadrant Italy
PostgreSQL Training, Services and Support
marco(dot)nenciarini(at)2ndQuadrant(dot)it | www.2ndQuadrant.it

Attachment Content-Type Size
pg_check_dir-v2.patch text/plain 2.1 KB

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