Add radius server hostname to tickets

[Alan DeKok]

Stephan Jaeger wrote:
> i'd like to add the radius server's hostname to the tickets, do be able
> to identify over which server it came in later. For that i've added a
> new internal freeradius attribute "Server-Hostname" and a block with a
> gethostname() call to xlat.c.
> 
> I now update the requests with unlang and add an attribute with
> %{Server-Hostname} as value.

  Why not just statically configure the hostname in radiusd.conf?

...
	server_hostname = "foo.example.com"
...

  And then update the code at run time, with:

	Server-Hostname = "%{config:server_hostname}"


  The configuration files are actually a list (in the lisp sense), with
nested lists, and arbitrary values.  You can put pretty much anything
you want in them, so long as it's properly formatted.

  Alan DeKok.