how can i know if user set xhost?

DoME69 · 09-05-2011, 03:37 AM

Hi...

I wanted to know if user / Display set Xhost.

how can i know that?

Thanks

Proud · 09-05-2011, 06:10 AM

http://www.xfree86.org/current/xhost.1.html

Quote:

nothing
If no command line arguments are given, a message indicating whether or not access control is currently enabled is printed, followed by the list of those allowed to connect. This is the only option that may be used from machines other than the controlling host.

Is this what you're after, to know if a specific entry exists on the allowed list?
Or if the environmental variable DISPLAY has been set, or something else?

DoME69 · 09-05-2011, 06:33 AM

Hi...

by typing xhost at my machine i got enable/disable of xhost.

what i want is to know if another display/user set xhost to enable or disable.

Proud · 09-05-2011, 06:46 AM

Well a quick read around and it seems that means you're looking at an empty list of entities allowed, aka no one's set anything enabled/allowed.
What are you trying to achieve, because this itself isn't programming, and most sites seem to suggest xhost is weak and for single user usage only, to be reconsidered for things like xauth. If you're trying to check if a connection to a machine/device is going to succeed, can't you just try it and neatly capture any error returned?