add a sample MAC address extraction to powerdns example Lua script

diff --git a/pdns/powerdns-example-script.lua b/pdns/powerdns-example-script.lua
index 6b08dcedc5cc17b031fc27d5ddf9c6655df157b3..3374e4e4685d26f5d2d8b7586d1853d29d110495 100644 (file)
--- a/pdns/powerdns-example-script.lua
+++ b/pdns/powerdns-example-script.lua
@@ -20,6 +20,11 @@ magicMetric = getMetric("magic")
 function preresolve(dq)
        print("Got question for "..dq.qname:toString().." from "..dq.remoteaddr:toString().." to "..dq.localaddr:toString())
 
+       local a=dq:getEDNSOption(3)
+       if(a) then
+               print("There is an EDNS option 3 present: "..a)
+       end
+
        loc = newCA("127.0.0.1")
        if(dq.remoteaddr:equal(loc))
        then