Re: [rox-users] ROX-Session 0.1.18 hanging X session

[Matthew W. O. <wei...@gr...>]

-- Keith R. John Warno <kr...@op...> wrote
(on Friday, 11 April 2003, 07:05 PM -0400):
> ROX-Session 0.1.18 -- used in combination w/ ROX-Filer and (probably)
> any window manager -- will happily hang the X session if:
> 
> 	1) an app that wants to read from stdin is clicked on via
> 	ROX-Filer
> 	2) said app is too braindead to realize that stdin is not
> 	connected to a terminal
> 
> For example, if you were to click on /bin/passwd via ROX-Filer, it
> should bomb out with an error like "passwd: Conversation error" (meaning
> it could not get stdin input), and you should see this error via
> ROX-Session's error log facility.
> 
> However, if you were to, say, make a script with the following two
> lines, make it executable and then click on it via ROX-Filer running
> under ROX-Session, your X session might/will hang:
> 
> #!/bin/bash
> less /etc/passwd
> 
> That is with less version 378, and bash 2.05b.

That didn't do anything at all for me.

> [ No, I do not have a script that does the above; I just used that as an
> example.  I do, however, use a script that does the something like the
> following:

Would have been easier just to give these in the first place! ;-)

> 	#!/bin/bash
> 	exec xterm -e view_rpm_script "$@"
> 
> where in view_rpm_script we have:
> 	
> 	#!/bin/bash
> 	rpm -qivlp "$@"|less
> 
> for viewing RPM information if a given file.  I went and clicked on the
> view_rpm_script itself (thereby giving no arguments), rpm bitched to
> stderr about no arguments, nothing was piped to less, and the X session
> hung as less waited for a 'q' stroke on stdin. ]

Okay, so I'm on a debian machine, so rpm doesn't work (mainly due to no
RPM packages, which is really just fine by me!). But probably the
equivalent is something like using 'dpkg -L' or 'apt-cache show', so I
made a script like yours using similar arguments and piping to less; the
other script (the first) I left the same.

Worked fine for me, just clicking on it. Tries to run, can't, gives me
an empty 'less' session, which I exit by hitting 'q'.

> I would like to know whether anyone can or cannot reproduce this.  My
> system underwent a major overhaul, so it is possible something is f'ed
> up. :)  I can, however, reproduce this with at least two WMs: icewm and
> twm.

And, by the way, this was under blackbox; also running under gdm, but
that shouldn't matter.

Good luck debugging!

-- 
Matthew Weier O'Phinney
ma...@we...
http://matthew.weierophinney.net