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Subject:	Re: Permissions change concern
References:	<5712F224 DOT 7070308 AT cs DOT umass DOT edu> <20160418101803 DOT GM24565 AT calimero DOT vinschen DOT de> <5714DDA9 DOT 3030002 AT cs DOT umass DOT edu> <1783109831 DOT 20160418165356 AT yandex DOT ru>
To:	cygwin AT cygwin DOT com
From:	Eliot Moss <moss AT cs DOT umass DOT edu>
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Date:	Mon, 18 Apr 2016 11:39:00 -0400
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On 4/18/2016 9:53 AM, Andrey Repin wrote:
> Greetings, Eliot Moss!
>
>> 1) If a directory says:
>
>>     default:users::rwx
>>     default:group::rwx
>>     default:other:r-x
>
>>     and my umask is 022
>
>>     when I create a new file by "echo test > foo.bar", foo.bar's
>>     perms are 644, not the 755 I would expect.
>
> Why? I'm totally expecting 644 on a FILE.
> +x never set by default for files.

Ok, I concede this one, since it works as you describe on a RedHat Linux system.
The mode used in the open/creat call reduces the permissions.

>> 2) If the directory has g+s set (visible from -s- in the flags shown
>>      by getfacl), the directory's group is Cygwin, and my primary group is moss,
>>      then the file gets created with group moss, not group Cygwin (which is
>>      what g+s is supposed to mean, right?)
>
> If "Cygwin" group is part of your token, I would expect Cygwin too, in this
> case.

Yes, it is part of the token, and is listed by the 'groups' command.

Regards -- EM

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