add broadcast funkensturm config

_examples/funkensturm/config_broadcast.go

@@ -0,0 +1,59 @@
+package main
+// Broadcast to multiple servers
+
+import (
+	"dns"
+	"dns/resolver"
+)
+
+func match(m *dns.Msg, d int) (*dns.Msg, bool) {
+	// Matching criteria
+        switch d {
+        case IN:
+                // nothing
+        case OUT:
+                // Note that when sending back only the mangling is important
+                // the actual return code of these function isn't checked by
+                // funkensturm
+        }
+
+	// Packet Mangling
+	switch d {
+	case IN:
+		// nothing
+	case OUT:
+		// nothing
+	}
+	return m, true
+}
+
+func send(m *dns.Msg, ok bool) *dns.Msg {
+	switch ok {
+	case true, false:
+                var in resolver.Msg
+                for _, r := range qr {
+                        r <- resolver.Msg{m, nil, nil}
+                        in = <-r
+                }
+                return in.Dns    // return the last
+	}
+	return nil
+}
+
+// Return the configration
+func funkensturm() *Funkensturm {
+	f := new(Funkensturm)
+
+        // Nothing to set up
+	f.Setup = func() bool { return true }
+
+        // 1 match function, use AND as op (doesn't matter in this case)
+	f.Matches = make([]Match, 1)
+	f.Matches[0].Op = AND
+	f.Matches[0].Func = match
+
+        // 1 action
+	f.Actions = make([]Action, 1)
+	f.Actions[0].Func = send
+	return f
+}