X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Thu, 8 Jan 2009 12:20:23 +0100 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: cmd.exe from Cygwin Message-ID: <20090108112023.GC14304@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <5195c8760901052113i531a01eeucd7e7aa0f36c8dc3@mail.gmail.com> <5195c8760901060035x2743936axd05b108055404d45@mail.gmail.com> <49639969.40707@cygwin.com> <49639A90.8020702@cygwin.com> <5195c8760901062114r6ba086a1v2f6bac5ee1ed1538@mail.gmail.com> <49644792.2030607@cygwin.com> <5195c8760901070019y58d4f3a4l266950475001f21b@mail.gmail.com> <20090107155217.GB32231@ednor.casa.cgf.cx> <5195c8760901071702m50d5a682sa60ad80c13c011af@mail.gmail.com> <5195c8760901080233q615d5ea2mcd2ce4f5e19cfde9@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5195c8760901080233q615d5ea2mcd2ce4f5e19cfde9@mail.gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Jan 8 16:03, Jeenu V wrote: > On Thu, Jan 8, 2009 at 6:32 AM, Jeenu V wrote: > > On Wed, Jan 7, 2009 at 9:22 PM, Christopher Faylor > > wrote: > > > >> screen uses ptys. ptys are equivalent to CYGWIN=tty. > >> > >> We really don't guarantee that pure Windows applications will work with > >> ptys. > > > > Hm... looks like I've to live without cmd.exe from screen. > > Anyway,.thank you guys for the support and help. > > > > And can this be guaranteed in future versions of Cygwin? Or is it > something constrained by screen? It's a constraint of the native Windows applications. There's no PTY concept in Windows so Cygwin uses pipes to emulate the behaviour. Cygwin applications know when they are running in a pty, native apps don't and behave differently if their stdio descriptors are connected to pipes. Bottom line: We just *can't* gurantee ... Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/