Tag forwarded X11 connection as remote

[Michal Srb]

On pátek 6. října 2017 4:47:06 CEST Damien Miller wrote:
> Is it too late to make the DRI3 developers adjust their protocol to degrade
> gracefully?

I am not sure, but I think it would be already able to degrade if it was able 
to detect error. But from what I observed, after X server (successfully) sends 
the file descriptor, no more data gets thru. So the X client (application) 
just waits indefinitely.

> Is there any lightweight way (i.e. not requiring any X11 libraries) that
> the client could determine whether or not the server supports this flag?

Probably the easiest would be to probe it. It could just send the initial 
request starting with 'r' or 'R' and observe whether X server accepts or 
rejects the connection.

Michal Srb