Is it possible to do X forwarding over bluetooth?

[Han]

On Mon, Sep 13, 2010 at 9:35 PM, Timo Juhani Lindfors
<timo.lindfors at iki.fi> wrote:
> Han <keepsimple at gmail.com> writes:
>> btw, I can write program to create socket directly over bluetooth
>> without using PAN.
>
> X clients can talk to tcp port or unix socket. You can use the socat
> program to forward either of those to the stdin of your program.
>
>

How does X client talk to unix socket?  Any function names so I can search?

thanks
Han