Node Screen Name

Is there anyway within an iRule to get the screen name of an active node? I want to avoid having to hard code a class list of node to address since that's already defined in the node definitions.

 

 

I basically want to be able to for certain sites direct requests to a specific node (e.g. node1.domain.com goes to node1, node2.domain.com goes to node2, www.domain.com goes to node1 or node2 depending on the pool settings) with something like the following:

 

 

foreach node [active_members -list [LB::server pool]] {

 

set node_address [getfield $node " " 1]

 

set node_port [getfield $node " " 2]

 

set node_name [NODE::screen $node_address] SOMETHING LIKE THIS

 

 

if { [HTTP::host] starts_with "[$node_name]." } {

 

node $node_address $node_port

 

}

 

}

 

 

I know there is a command to retrieve this via iControl and am hoping a similar function is available for an iRule ...