package cybersecurity

// PortResult is a sum type for TCP port scan results.
type PortResult interface{ portResult() }

// PortOpen indicates the port accepted a connection.
type PortOpen struct {
	Port    int
	Banner  string
}

// PortClosed indicates the port refused the connection.
type PortClosed struct {
	Port int
}

// PortFiltered indicates the port did not respond (timeout).
type PortFiltered struct {
	Port int
}

func (PortOpen) portResult()     {}
func (PortClosed) portResult()   {}
func (PortFiltered) portResult() {}