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Date:	Fri, 8 Mar 2019 23:46:38 +0900
From:	Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
To:	cygwin AT cygwin DOT com
Subject:	Re: Logging-in using ssh elevates the user privilege.
Message-Id:	<20190308234638.0ada919bc31803cf064ca720@nifty.ne.jp>
In-Reply-To:	<20190308141118.GM3785@calimero.vinschen.de>
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Hi Corinna,

Thanks for your advice.

On Fri, 8 Mar 2019 15:11:18 +0100 Corinna Vinschen wrote:
> > In Linux, connect() in the client returns befor the
> > server calls accept(). However, in cygwin, connect()
> > does not return until the server calls accept().
> 
> This is a result of the handshake to exchange credentials for
> getpeereid().  To workaround this issue, try building screen
> with a tweak.  Server and as client should call
> 
>   setsockopt (sock, SOL_SOCKET, SO_PEERCRED, NULL, 0);
> 
> before calling accept or connect.

Following your advice, I tried the patch attached and
confirmed the problem regarding -Q option is solved.

-- 
Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>

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