howto get the servant from the object reference

[Dietmar Maurer <dietmar maurer-it com>]

Is it possible to get the PortableServer_Servant if I only
have a CORBA_Object (if the object is local)?

What I need is something like this:

if (servant = servant_from_object (obj)) {
     /* found the servant */
} else {
    /* object is not local */
}