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:cc:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; q=dns; s=
	default; b=NLJARoC7Fy29goxcH2b6w2pUr0OEtPrB7i8si30ctoYhImfF/vT25
	kuVSmv3ModQOyQoeqSPzUm9u+JrVwjteXEhj4LhxRVBPillV++GODNY2rWBjSybc
	pDw8hetq1h4iu7f6qUd7OTsHAuId9rXjwz1wD02KuFOYXFhh0D2Uss=
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:cc:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; s=default;
	bh=bUYK6Wo3SDSkvyNolOTo8/2R/XU=; b=pmX3c6YMJg0avq2ie6cx2WDrYAFb
	XxEWuqPcvJ+twIVM4ZBc2+vhBcqlLNKGyw0C4smPJqkyaA9icb7ii+J063pzfH8w
	Kc7dmeqGpXejwHq3gQuh3s2egLtZSzimGwOoPe/uIX29qE8iCcsPf66WiFCxK8Zh
	Mgb9CqLcH3SCk1A=
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=-102.4 required=5.0 tests=AWL,BAYES_00,GOOD_FROM_CORINNA_CYGWIN,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 spammy=HTo:D*jp, H*F:D*cygwin.com
X-HELO:	mout.kundenserver.de
Date:	Fri, 8 Mar 2019 16:56:35 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
Cc:	cygwin AT cygwin DOT com
Subject:	Re: Logging-in using ssh elevates the user privilege.
Message-ID:	<20190308155635.GP3785@calimero.vinschen.de>
Reply-To:	cygwin AT cygwin DOT com
Mail-Followup-To:	Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>, cygwin AT cygwin DOT com
References:	<20190307010000 DOT fc28b73739c2dd66e609982b AT nifty DOT ne DOT jp> <381052629 DOT 20190307141955 AT yandex DOT ru> <51233666 DOT 20190307182445 AT yandex DOT ru> <20190308230138 DOT b7f6b5ac90c9a14cde2647c1 AT nifty DOT ne DOT jp> <20190308141118 DOT GM3785 AT calimero DOT vinschen DOT de> <20190309003908 DOT 52b91dd113d07f9ee1025d4c AT nifty DOT ne DOT jp>
MIME-Version:	1.0
In-Reply-To:	<20190309003908.52b91dd113d07f9ee1025d4c@nifty.ne.jp>
User-Agent:	Mutt/1.11.3 (2019-02-01)

--Y46ssxGX9/CNNfN6
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Mar  9 00:39, Takashi Yano wrote:
> Hi Corinna,
>=20
> On Fri, 8 Mar 2019 15:11:18 +0100 Corinna Vinschen wrote:
> >   setsockopt (sock, SOL_SOCKET, SO_PEERCRED, NULL, 0);
> > before calling accept or connect.
>=20
> I added this to the test code but it failed as:
>=20
> Server: Created.
> Server: Binded.
> Server: Listened.
> Client: Created.
> Client: Connected.
> Client: Written.
> accept: Software caused connection abort
>=20
> Of course, setsockopt() was added also before connect().
>=20
> So, I moved the setsockopt() from just before accept()
> to just before listen(), then it  succeeded.
>=20
> Server: Created.
> Server: Binded.
> Server: Listened.
> Client: Created.
> Client: Connected.
> Client: Written.
> Server: Accepted.
> 10: 1234567890
> Server: Read.
>=20
> Does this affect to listen() as well?

No, listen isn't affected.


Corinna

--=20
Corinna Vinschen
Cygwin Maintainer

--Y46ssxGX9/CNNfN6
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=yO91
-----END PGP SIGNATURE-----

--Y46ssxGX9/CNNfN6--

- Raw text -