From owner-freebsd-questions  Fri Dec 20  2:24:14 2002
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 32E2937B401
	for <freebsd-questions@freebsd.org>; Fri, 20 Dec 2002 02:24:13 -0800 (PST)
Received: from grillolja.cs.umu.se (grillolja.cs.umu.se [130.239.40.17])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 6925F43ED8
	for <freebsd-questions@freebsd.org>; Fri, 20 Dec 2002 02:24:12 -0800 (PST)
	(envelope-from tdv94ped@cs.umu.se)
Received: from localhost (localhost [127.0.0.1])
	by amavisd-new (Postfix) with ESMTP
	id 652249FD0; Fri, 20 Dec 2002 11:24:11 +0100 (MET)
Received: from kvist.cs.umu.se (kvist.cs.umu.se [130.239.40.192])
	(using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits))
	(No client certificate requested)
	by grillolja.cs.umu.se (Postfix) with ESMTP
	id 527439FA5; Fri, 20 Dec 2002 11:24:09 +0100 (MET)
Date: Fri, 20 Dec 2002 11:24:08 +0100 (MET)
From: Paul Everlund <tdv94ped@cs.umu.se>
To: Aaron Burke <aburke@nullplusone.com>
Cc: freebsd-questions@freebsd.org
Subject: RE: Problems with a C application that changes users and run 'screen
 -x'
In-Reply-To: <Pine.GSO.4.44.0212201041270.19542-100000@kvist.cs.umu.se>
Message-ID: <Pine.GSO.4.44.0212201120540.19980-100000@kvist.cs.umu.se>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Virus-Scanned: by amavisd-new amavisd-new-20020630
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-questions.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-questions>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-questions>
X-Loop: FreeBSD.ORG

On Fri, 20 Dec 2002, Paul Everlund wrote:

Found an error in my reply...

> On Fri, 20 Dec 2002, Aaron Burke wrote:
>
[big snip]

> I think execlp is writing over your current process. So first your
> process is exchanged with ppp, then ppp is exchanged with screen. You
> have to make a copy of your current process, a.out, by using fork, and
> then exchange the process image in this copy using execlp.

Correction... Your a.out process is replaced with ppp, then nothing
else happens, as screen never is called du to the replacement.

> Best regards,
> Paul

Best regards,
Paul


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message