Added Router ID and query options to limit number of results

router/default.go

@@ -88,7 +88,10 @@ func (r *router) Address() string {
 func (r *router) String() string {
 	sb := &strings.Builder{}
 
-	s := fmt.Sprintf("Router Local Address: %s\n", r.opts.Address)
+	s := fmt.Sprintf("Router ID: %s\n", r.id.String())
+	sb.WriteString(s)
+
+	s = fmt.Sprintf("Router Local Address: %s\n", r.opts.Address)
 	sb.WriteString(s)
 
 	s = fmt.Sprintf("Router Network Address: %s\n", r.opts.Network)

router/query.go

@@ -18,6 +18,8 @@ type QueryOptions struct {
 	Service string
 	// Policy defines query lookup policy
 	Policy LookupPolicy
+	// Count defines max number of results to return
+	Count int
 }
 
 // EntryOpts allows to set the route query options
@@ -41,6 +43,13 @@ func QueryLookupPolicy(p LookupPolicy) QueryOption {
 	}
 }
 
+// ResultCount allows to set max results to return
+func ResultCount(c int) QueryOption {
+	return func(o *QueryOptions) {
+		o.Count = c
+	}
+}
+
 // Query defines routing table query
 type Query interface {
 	// Options returns query options