X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:date:from:to:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; q=dns; s=
	default; b=XlelcL4G/d9MfC+FEdW6fc5zUDkdYOdf26nHsQcwd3FS2NisTeavF
	mVLKNh5ItVmUAUtzk8ZGJeVsv4dtiK7ue/MRoqgTgQKO9JxlLFVTlHQgvdkur/eh
	dzgTFQCwUXWK4VukhbIBT8Uuh1ES+UtyOLWQpjJSBuRX4DEh5WRBKI=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:date:from:to:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; s=default;
	 bh=zEUkudIdtugxU0ZmNrs81JoYJfg=; b=uRalipsBbqZdKTe+5xJK47oQwpgY
	+JNiSba/6AdV6Gkn5L2qCLM8bOv+LTXYZroHVvrWtrOXAHVOMnFWoOWAyJYXz6xz
	JaeqUqQDdqyRjEoDJnRZ6es/ouzlSYlb5Kr7TZbzWrAhzPgOzofUJYTwrEMFLij+
	VsWOkipkCL5udrQ=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Authentication-Results: sourceware.org; auth=none
X-Spam-SWARE-Status: No, score=-100.9 required=5.0 tests=BAYES_00,GOOD_FROM_CORINNA_CYGWIN,KAM_LAZY_DOMAIN_SECURITY,NORMAL_HTTP_TO_IP,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.2 spammy=H*i:sk:1c60402, H*f:sk:1c60402
X-HELO: mout.kundenserver.de
Date: Tue, 22 Jan 2019 10:06:33 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: /dev/fd/N not synonymous with file descriptor N; it is on Linux
Message-ID: <20190122090633.GK2802@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <0f030e809f063f5a5e64ff7a7a0c3227 AT xs4all DOT nl> <20190106201950 DOT GC4430 AT calimero DOT vinschen DOT de> <d6431739e2801a80d73e7cb68b4fcc19 AT smtp-cloud8 DOT xs4all DOT net> <1c60402837d6510667357257b5e96e88 AT xs4all DOT nl>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha256;	protocol="application/pgp-signature"; boundary="2Z2K0IlrPCVsbNpk"
Content-Disposition: inline
In-Reply-To: <1c60402837d6510667357257b5e96e88@xs4all.nl>
User-Agent: Mutt/1.10.1 (2018-07-13)

--2Z2K0IlrPCVsbNpk
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Jan 22 09:57, Houder wrote:
> On 2019-01-22 09:50, Houder wrote:
> > On Sun, 6 Jan 2019 21:19:50, Corinna Vinschen  wrote:
> > > This should work in the latest developer snapshot uploaded to
> > > https://cygwin.com/snapshots/  Please give it a try.
> > So, for the record only:
>=20
> and as another example, this STC succeeds on Linux ..., but fails on Cygw=
in.
>=20
> 64-@@ ./stca /dev/fd/0 <<EOF
> > bla
> > EOF
> fd1 =3D 0
> argv[1] =3D /dev/fd/0
> fd2 =3D 3
> id =3D writefd2, errno =3D 13, errstr =3D Permission denied
> 64-@@

Not sure what you're testing.  This is the result for me on both,
Windows 8.1 and Windows 10 1809:

)$ ./stca /dev/fd/0 <<EOF
? bla
? EOF
fd1 =3D 0
argv[1] =3D /dev/fd/0
fd2 =3D 3
buf =3D \
Hello, world!


Corinna

--=20
Corinna Vinschen
Cygwin Maintainer

--2Z2K0IlrPCVsbNpk
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=MVqK
-----END PGP SIGNATURE-----

--2Z2K0IlrPCVsbNpk--