Added the ability with kill -HUP to let the supernode display registered peers

Improvd supernode help

n2n.c

@@ -265,10 +265,8 @@ void print_n2n_version() {
 struct peer_info * find_peer_by_mac(struct peer_info * list, const n2n_mac_t mac)
 {
   /* TODO - replace a list with a hashtable */
-  while(list != NULL)
+  while(list != NULL) {
-    {
+      if(0 == memcmp(mac, list->mac_addr, 6)) {
-      if(0 == memcmp(mac, list->mac_addr, 6))
-        {
 	  return list;
         }
       list = list->next;

packages/etc/n2n/supernode.conf

@@ -9,3 +9,6 @@
 #
 # -l=7777
 #
+# Specify in supernodes.list the list of allowed communities
+#
+# -c=supernodes.list