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From: Ben Pfaff <blp@cs.stanford.edu>
To: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: tglx@linutronix.de, mingo@redhat.com, davem@davemloft.net, hpa@zytor.com,
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Subject: Re: [RFC PATCH 0/5] net: socket bind to file descriptor introduced
References: <20120815161141.7598.16682.stgit@localhost.localdomain>
Reply-To: blp@cs.stanford.edu
Date: Wed, 15 Aug 2012 09:52:53 -0700
In-Reply-To: <20120815161141.7598.16682.stgit@localhost.localdomain>
	(Stanislav Kinsbursky's message of "Wed, 15 Aug 2012 20:21:56 +0400")
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Stanislav Kinsbursky <skinsbursky@parallels.com> writes:

> This system call is especially required for UNIX sockets, which has name
> lenght limitation.

The worst of the name length limitations can be worked around by
opening the directory where the socket is to go as a file
descriptor, then using /proc/self/fd/<fd>/<basename> as the name
of the socket.  This technique also works with "connect" and in
other contexts where a struct sockaddr is needed.  At first
glance, it looks like your patches only help with "bind".