From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30086 invoked by alias); 28 Apr 2012 11:20:22 -0000 Received: (qmail 30078 invoked by uid 22791); 28 Apr 2012 11:20:21 -0000 X-SWARE-Spam-Status: No, hits=-6.4 required=5.0 tests=BAYES_00,KHOP_PGP_SIGNED,KHOP_THREADED,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from dancol.org (HELO dancol.org) (96.126.100.184) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sat, 28 Apr 2012 11:20:09 +0000 Received: from c-76-22-66-162.hsd1.wa.comcast.net ([76.22.66.162] helo=[192.168.1.2]) by dancol.org with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1SO5hA-0008Im-LX for cygwin@cygwin.com; Sat, 28 Apr 2012 04:20:08 -0700 Message-ID: <4F9BD262.2000403@dancol.org> Date: Sat, 28 Apr 2012 11:20:00 -0000 From: Daniel Colascione User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:11.0) Gecko/20120327 Thunderbird/11.0.1 MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: Cygwin passes through null writes to other software when redirecting standard input/output (i.e. piping) References: <020501cd23f2$20f07620$62d16260$@motionview3d.com> <20120427143753.GO25385@calimero.vinschen.de> <025501cd24c6$6a353990$3e9facb0$@motionview3d.com> <4F9B38FB.9030607@dancol.org> <20120428052727.GA23749@ednor.casa.cgf.cx> In-Reply-To: <20120428052727.GA23749@ednor.casa.cgf.cx> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig6CBAC19B445753217647D4DD" X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com X-SW-Source: 2012-04/txt/msg00664.txt.bz2 --------------enig6CBAC19B445753217647D4DD Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-length: 494 On 4/27/12 10:27 PM, Christopher Faylor wrote: > The above comment shows an "and" relationship here. Message type pipes > more closely mimic Linux (UNIX) pipe behavior AND are definitely > required for ptys. Yeah, but because message pipes break other programs. Cygwin has only been using message pipes since 23-Oct-11 (1.134), and it got along fine before that, ICANON aside. If Cygwin programs don't actually _need_ message pipes in the general case, Cygwin should use byte pipes instead. --------------enig6CBAC19B445753217647D4DD Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" Content-length: 235 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (Darwin) Comment: GPGTools - http://gpgtools.org iEYEARECAAYFAk+b0mMACgkQ17c2LVA10Vv5yACghLCmjv6S3jQFijzIkdnP+LsD UDEAoNLzsWddk17YwNxpYxHqub2S8nxp =UO4L -----END PGP SIGNATURE----- --------------enig6CBAC19B445753217647D4DD--