Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Date: Thu, 8 Aug 2002 16:32:59 -0400 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: OpenSSH and WinCVS in Windows 9x Message-ID: <20020808203259.GB14854@redhat.com> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <20020806140534 DOT 757a155a DOT steven DOT obrien2 AT ntlworld DOT com> <200208081932 DOT 25737 DOT laurent DOT pinchart AT capflow DOT com> <20020808175335 DOT GG11425 AT redhat DOT com> <200208082048 DOT 14548 DOT laurent DOT pinchart AT capflow DOT com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200208082048.14548.laurent.pinchart@capflow.com> User-Agent: Mutt/1.3.23.1i On Thu, Aug 08, 2002 at 08:48:14PM +0200, Laurent Pinchart wrote: >> The problem is not in cygwin. If you are communicating with pipes >> between non-cygwin application and a cygwin application and expecting >> EOF notification on pipes you are not going to get it. Microsoft >> doesn't provide any reliable way of finding that information on Windows >> 9x. > >That's bad news :-( > >From the cygwin code (peek_pipe AT select DOT cc), I assume that PeekNamedPipe >returns a negative value for lpTotalBytesAvail on EOF in win2k, and 0 in >win9x. > >I'll write a simple application to check that tomorrow. > >BTW I looked at the putty code, and it uses a thread to read from stdin. > >Well, I still think it should be possible to get notified of such an event. >feof() from mscvrt manages to do so... feof on msvcrt is not interruptible by a signal using the UNIX paradigm and probably doesn't use PeekNamedPipe before performing a ReadFile. If you're just using a ReadFile to read from a pipe, then it will, of course handle an eof. Cygwin can't do things that simply. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/