X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Thu, 7 Mar 2013 15:37:12 +0100 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: Unix domain accept() and getperrname() doesn't return the client address. Message-ID: <20130307143712.GA12359@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <20130304093836.GB5468@calimero.vinschen.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Mar 7 22:48, Tanaka Akira wrote: > 2013/3/4 Corinna Vinschen: > > > It's not exactly intentional, but known. The socket's peername is not > > transmitted during the local socket credential exchange. So far the > > server assumes an unbound socket on the client side because, well, I > > guess the reason is "nobody asked for it yet". This could probably > > be implemented with not too much effort, if necessary. > > I see. Thank you. > > Is it also known that recvfrom() on Unix domain datagram socket > returns an AF_INET address? Not really, no. This is another "nobody asked for it yet", but I think that's a bug. I'll have a look to fix that for 1.7.18. But the above restriction will apply. If we have no peer address, you get a sockaddr_un with empty path. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple