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Mail Archives: cygwin/2015/09/23/10:47:22

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Message-ID: <BLU182-DS2B4F831FEB7E4C1B67330D4440@phx.gbl>
From: "Walter L." <bournenoir AT hotmail DOT com>
To: <cygwin AT cygwin DOT com>
References: <BLU182-W10FB6B21A2AEC90F71470FD4450 AT phx DOT gbl> <154887677 DOT 20150923111537 AT yandex DOT ru>
In-Reply-To: <154887677.20150923111537@yandex.ru>
Subject: Re: Issues encountered with new Cygwin version
Date: Wed, 23 Sep 2015 10:46:57 -0400
MIME-Version: 1.0

Thanks for the quick response!

> > 2) The 'touch' command creates a file with the executable bit set
>
> > [user AT hostname ~]$ touch newfile.txt
> > [user AT hostname ~]$ ls -l newfile.txt
> > -rwxrwx---+ 1 user Domain Users 0 Sep 22 17:21 newfile.txt
>
> > I am fully aware that Windows programs (e.g. Eclipse and Windows
> > Explorer) will create files with the executable bit set due to ACL and
> > NTFS permissions. However, if I 'touch' a file inside an earlier version
> > of Cygwin
>
> Define "earlier" ? The permissions handling has been extensively rewritten
> since 1.7.34.

Probably from a few months ago, but I can't confirm. I've been trying to
figure out how to revert back to an earlier version to verify this. Where
can I find archived versions of Cygwin?

> > the file would be created without the executable bit set (i.e. 644).
>
> Which will then prevent opening it from Explorer by file association.

Not really... In the above example if I 'chmod 644 newfile.txt' in Cygwin,
Windows can still open up the file in notepad by just double-clicking on the
file. Checking the file permission under Windows shows "Special permissions"
checked. It also works even if I remove the ACL bit shown below:

[user AT hostname ~]$ chmod 644 newfile.txt
[user AT hostname ~]$ ls -l newfile.txt
-rw-r--r--+ 1 user Domain Users 0 Sep 23 10:30 newfile.txt
[user AT hostname ~]$ setfacl -b newfile.txt
[user AT hostname ~]$ ls -l newfile.txt
-rw-r--r-- 1 user Domain Users 0 Sep 23 10:30 newfile.txt

At this point I double-clicked on the file in Explorer and it opened in
Notepad, which I then added a line of text and saved it.

[user AT hostname ~]$ ls -l newfile.txt
-rw-r--r-- 1 user Domain Users 18 Sep 23 10:32 newfile.txt
[user AT hostname ~]$ cat newfile.txt
this is a new file
[user AT hostname ~]$

> > To be honest, I can't tell if this is caused by the new version of
> > Cygwin or a Windows Update.
>
> Likely it is caused by the change in Cygwin permissions handling.
> It now correctly inherit permissions in most cases.
>
> > [user AT hostname ~]$ uname -a
> > CYGWIN_NT-6.1-WOW hostname 2.2.1(0.289/5/3) 2015-08-20 11:40 i686 Cygwin

Regards,
~WL 


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