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Date: Wed, 19 Dec 2018 17:43:21 +0300
From: Andrey Repin <anrdaemon AT yandex DOT ru>
Reply-To: cygwin AT cygwin DOT com
Message-ID: <623029685.20181219174321@yandex.ru>
To: Corinna Vinschen <cygwin AT cygwin DOT com>, cygwin AT cygwin DOT com
Subject: Re: Exclude System entries with "ls" or "find"
In-Reply-To: <20181219133908.GK28727@calimero.vinschen.de>
References: <5c184377 DOT 1c69fb81 DOT 7df8f DOT 9525 AT mx DOT google DOT com>   <20181218081347 DOT GD28727 AT calimero DOT vinschen DOT de>  <7831498f-3c06-5810-354e-87c452d3a0e7 AT SystematicSw DOT ab DOT ca>  <20181219100622 DOT GF28727 AT calimero DOT vinschen DOT de>  <328574974 DOT 20181219151038 AT yandex DOT ru>  <640e5b20-253d-682b-e021-f6b2c95bfd6f AT cs DOT umass DOT edu>  <20181219133908 DOT GK28727 AT calimero DOT vinschen DOT de>
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Greetings, Corinna Vinschen!

> On Dec 19 08:29, Eliot Moss wrote:
>> On 12/19/2018 7:10 AM, Andrey Repin wrote:
>> > Greetings, Corinna Vinschen!
>> > 
>> > > Bottom line is, if you want to handle DOS attributes in a special way
>> > > not covered by our POSIX emulation, user space has to do it.
>> > 
>> > Can something be implemented around getfattr to serve this use case in a more
>> > POSIX'y way?
>> 
>> I was not previously much aware of get/setfattr, but I agree that that looks
>> like a possible way to provide access to the Windows SYS attribute and friends.
>> Not that I am that familiar with details of what NTFS, etc., provide, getfattr
>> may be a way to provide access to additional attributes / facts about files
>> (paths, generally) as well.  Sounds like it would not be too hard to support
>> access to the basic attributes this way.
>> 
>> I suspect the general response will be PTC, though!  :-)

> Not only that.  attr is an upstream package, so you would have to 
> convince the upstream maintainers to take your patches, ideally.

> attr is for handling of extended attributes, quite different from
> DOS attributes.  I doubt that DOS attribs fit in there.

Well, well. We do have a living example of Samba (ab)using xattr to support
Windows ACL on *NIX.
I deduce from your response, that a DOS attributes use case would be on
different side of the table, though.


-- 
With best regards,
Andrey Repin
Wednesday, December 19, 2018 17:41:17

Sorry for my terrible english...


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