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Date: Mon, 4 Mar 2013 10:38:36 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Unix domain accept() and getperrname() doesn't return the client address.
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On Mar  4 12:19, Tanaka Akira wrote:
> Hi.
> 
> I found that accept() and getperrname() on a Unix domain socket doesn't
> return the client socket address.
> The sun_path field of the returned address is empty.
> 
> Is it an intentional behavior?

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.


Corinna

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Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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