Allow determining name

tun.go

@@ -20,7 +20,7 @@ type TUNDevice interface {
 	Read([]byte, int) (int, error)  // read a packet from the device (without any additional headers)
 	Write([]byte, int) (int, error) // writes a packet to the device (without any additional headers)
 	MTU() (int, error)              // returns the MTU of the device
-	Name() string                   // returns the current name
+	Name() (string, error)          // fetches and returns the current name
 	Events() chan TUNEvent          // returns a constant channel of events related to the device
 	Close() error                   // stops the device and closes the event channel
 }