RE: Failed bash -r command returns 0 exit status

[Pitt, David]

Hi Dave,

> As for "/bin/ls && /bin/ls", since neither command runs neither one fails, 
> either.  'Tis a bit of a head-scratcher, though.

Failure to run can in no way be construed as success, as is shown by:

$ bash --restricted -c "/bin/ls"; echo $?
bash: /bin/ls: restricted: cannot specify `/' in command names
1

It's the combination of commands that causes problems. Chet Ramey has 
acknowledged this as a bug.

In the meantime, can anyone suggest a workaround?

Regards,

David Pitt | Developer/Designer
TI SD Risk Systems | Technology Solution Delivery | OTSS
>Level 3 Core A 833 Bourke Street Docklands VIC 3008
>Australia and New Zealand Banking Group Ltd | www.anz.com
>

-----Original Message-----
From: dave.rutherford@gmail.com [mailto:dave.rutherford@gmail.com] On Behalf Of 
Dave Rutherford
Sent: Monday, 24 May 2010 6:26 PM
To: Pitt, David
Cc: bug-bash@gnu.org
Subject: Re: Failed bash -r command returns 0 exit status

On Mon, May 24, 2010 at 02:48, Pitt, David <David.Pitt@anz.com> wrote:
>        However executing "/bin/ls && /bin/ls" under a restricted shell 
> returns a zero exit
>        status. This is not expected (at least not by me!). Zero exit 
> status is returned with
>        any list of commands, e.g. "/bin/ls && :".

That one would, since the second command is 'true'. Replace it with 'false' and 
you should see an exit status of 1.

As for "/bin/ls && /bin/ls", since neither command runs neither one fails, 
either.  'Tis a bit of a head-scratcher, though.

Dave

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