[Xquartz-dev] Sniffing X11 client/server traffic on Darwin?

[Tom Lane]

Can anyone recommend a good solution for $subject?  I'm still fighting
the OpenFont failure I mentioned here:
http://lists.apple.com/archives/x11-users/2009/Sep/msg00065.html
and have now pretty much convinced myself that it's not tcl's fault
but a bug in either libX11 or Snow Leopard's X server.  The quickest
way to prove which one is to look at the traffic, which I'd need to
do between ssh and Xquartz, but I have no suitable tools on my Mac.

			regards, tom lane