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Message-ID: <4EF3027A.7090503@shaddybaddah.name>
Date: Thu, 22 Dec 2011 21:12:10 +1100
From: Shaddy Baddah <lithium-cygwin AT shaddybaddah DOT name>
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Subject: Re: [ANNOUNCEMENT] CALL FOR TESTING: Cygwin 1.7.10
References: <announce DOT 20111206093746 DOT GA6222 AT calimero DOT vinschen DOT de> <4EF2D79D DOT 2020809 AT shaddybaddah DOT name> <20111222092552 DOT GA31936 AT calimero DOT vinschen DOT de>
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Hi Corinna,

On 22/12/11 20:25, Corinna Vinschen wrote:
> On Dec 22 18:09, Shaddy Baddah wrote:
>> Hi,
>>
>> On 06/12/11 20:37, Corinna Vinschen wrote:
>>> A lot of changes and fixes have been made in Cygwin since 1.7.9 has
>>> been released, so we're looking forward to release Cygwin 1.7.10 soon.
>>>
>>> Please test the latest developer snapshots at http://cygwin.com/snapshots/
>>> which should have "Release Candidate" quality.
>>
>> I'm having a problem with the most recent snapshot (at time of
>> writing), 2011-12-19 17:48:27 UTC. A regular non-privileged (not in
>> Administrators) user is unable to execute any commands from within a
>> Cygwin process itself.
>>
>> The following copy/paste from a Command Prompt session should
>> illustrate the problem:
>>
>> c:\Users\Public\portapps\cygwin\bin>ls /var
>> cache  empty  games  lib  log  run  tmp
>>
>> c:\Users\Public\portapps\cygwin\bin>sh -c "/bin/ls /var"
>> sh: /bin/ls: Permission denied
>>
>> c:\Users\Public\portapps\cygwin\bin>id -a
>> uid=1007(portapps) gid=513(None) groups=513(None),545(Users)
>>
>> c:\Users\Public\portapps\cygwin\bin>sh -c "/bin/id -a"
>> sh: /bin/id: Permission denied
>>
>> I am running Windows 7 64bit.
>
> Works for me.  I tried this with a non-admin domain member account
> as well as with a non-admin local SAM account.  Did you check the
> actual permissions?
>

Yes. They all look right to me. Here is what I see for ls for example:

c:\Users\Public\portapps\cygwin\bin>ls -l /bin/ls
-rwxr-xr-x 1 portapps None 128526 Oct 28 15:00 /bin/ls

c:\Users\Public\portapps\cygwin\bin>sh -c "/bin/ls -l /bin/ls"
sh: /bin/ls: Permission denied


I install all packages as the portapps user, keeping the install
separate from my ordinary user that I run everyday.

At this point, I should make a disclosure. To do this as a
non-Administrator grouped user, I must rename setup.exe to
cygpkg.exe. This defeats the later Windows releases abilities to
automatically detect installer applications by their name, and force
privilege elevation. This is something that I have been meaning to
open up a discussion about for sometime (or may have tried to already,
I can't recall), but I'll leave it to stand at the moment.

In anycase, it has not caused me any issue until I upgraded from 1.7.9
now to the latest 1.7.10 snapshot. And whilst this unconventional step
may be a factor, at this time I'd find that dubious.

I don't have time right at this moment, but later I maybe able to help
with some DLL debugging (I've done this in the past for problems such
as with
http://www.cygwin.com/ml/cygwin-developers/2010-02/msg00052.html).

Thanks,
Shaddy


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