Memstore: fall back to using given name if no SMD results

This is the case when no xname can be found for the given MAC address,
in which case we consider the possibility that the input isn't a MAC
address at all, and use it as directly as a datastore key.

internal/memstore/ciMemStore.go

@@ -63,6 +63,7 @@ func (m MemStore) Get(name string, sm *smdclient.SMDClient) (citypes.CI, error)
 	id, err := sm.IDfromMAC(name)
 	if err != nil {
 		log.Print(err)
+		id = name  // Fall back to using the given name as an ID
 	} else {
 		log.Printf("xname %s with mac %s found\n", id, name)
 	}
@@ -81,7 +82,7 @@ func (m MemStore) Get(name string, sm *smdclient.SMDClient) (citypes.CI, error)
 			}
 		}
 	} else {
-		log.Printf("ID %s is not a member of any groups\n", name)
+		log.Printf("ID %s is not a member of any groups\n", id)
 	}
 
 	if val, ok := m.list[id]; ok {