Re: [gtk-vnc-devel] [PATCH] Enable support for UltraVNC server

["Daniel P. Berrange" <berrange redhat com>]

On Thu, Jan 10, 2008 at 06:58:07PM +0000, Richard W.M. Jones wrote:
> (This fix actually supplied for me by Dan Berrange ...)
> 
> This patch detects if the server responds with (illegal) VNC protocol 
> version "3.6" and negotiates version 3.3.
> 
> Attached also is the Wireshark output showing RealVNC client connecting 
> to the same UltraVNC server, so you can see what RealVNC client is doing 
> in this situation.

ACK.

To be clear about what was going wrong when we sent back 3.6 to UltraVNC.
When we tried to read a u32 to get v3.3 style auth type, the value we were 
getting back was '0' which is an illegal AUTH_INVALID code.  

Even if we tried the v3.7 style auth init for v3.6, it still wouldn't
work because we'd be getting '0' for u8 n-auth field. So who knows what on 
earth UltraVNC is doing for the auth-negotiation when using v3.6. Its simpler 
just to force 3.6 back to v3.3 than to figure it out, since 3.6 is a bogus 
non-standard version anyway.

Dan.
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