Re: Problem with xterm-301-1

[Corinna Vinschen <corinna-cygwin@cygwin.com>]

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On Feb 27 17:00, Thomas Dickey wrote:
> On Thu, Feb 27, 2014 at 06:05:48PM +0000, Matt Seitz (matseitz) wrote:
> > > From: Thomas Dickey [mailto:dickey@his.com]
> > > 
> > > On Thu, Feb 20, 2014 at 06:45:00PM +0000, Matt Seitz (matseitz) wrote:
> > > > > From: Ola Strömfors [mailto:ola.stromfors@gmail.com]
> > > > >
> > > > > After updating from 291-1 to 301-1 xterm starts /bin/sh instead of
> > > > > my shell specified in /etc/passwd or in the SHELL environment variable.
> > > > >
> > > > > The workaround I have found is to create /etc/shells with a list of
> > > > > permitted shells, e.g.
> > > >
> > > 
> > > (whether xterm should use $SHELL incoming is a different issue that I
> > > am reconsidering)
> > 
> > Is there any ETA for a resolution of this issue?
> 
> I added that to my changes for #302 yesterday, and have a couple more
> issues to resolve (probably #302 will be available this weekend)
> 
> > I've been holding off on upgrading to xterm-301 because of this issue.  I'm
> > not sure if there is some patch coming soon (either to xterm or adding a
> > default /etc/shells to Cygwin), or if I should just plan on manually creating
> > my own "/etc/shells".
> 
> With #302, this will work:
> 
> 	SHELL=whatever xterm
> 
> but this is a special case (the program will run - a fix - but
> will need to be in /etc/shells to have xterm set $SHELL):
> 
> 	xterm whatever

May I politely ask why xterm cares at all?  What is the reasoning
behind this?

Heere's why I'm asking:

Xterm is not a login process, like login(1) or sshd(8).  If somebody
starts xterm, the login process itself has long exec'ed the login shell,
and the permission problem what shell is allowed to be started as login
shell is done.  Afterwards, the user is usually allowed to start
whatever process he or she has a right to.  It looks really weird to me
that a terminal emulator would decide that certain processes are not
allowed to a user which otherwise work fine.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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