Add connection.Protocol() and .Address() (#8)

connection.go

@@ -30,6 +30,8 @@ type client interface {
 	Exec(string, ...exec.Option) error
 	ExecInteractive(string) error
 	String() string
+	Protocol() string
+	IPAddress() string
 	IsConnected() bool
 }
 
@@ -87,6 +89,24 @@ func (c *Connection) SetDefaults() {
 	_ = defaults.Set(c.client)
 }
 
+// Protocol returns the connection protocol name
+func (c *Connection) Protocol() string {
+	if !c.IsConnected() {
+		return "NC"
+	}
+
+	return c.client.Protocol()
+}
+
+// Address returns the connection address
+func (c *Connection) Address() string {
+	if !c.IsConnected() {
+		return ""
+	}
+
+	return c.client.IPAddress()
+}
+
 // IsConnected returns true if the client is assumed to be connected.
 // "Assumed" - as in `Connect()` has been called and no error was returned.
 // The underlying client may actually have disconnected and has become

connection_test.go

@@ -22,6 +22,8 @@ func TestHostFunctions(t *testing.T) {
 	require.NoError(t, h.Connect())
 	require.Equal(t, "[local] localhost", h.String())
 	require.True(t, h.IsConnected())
+	require.Equal(t, "Local", h.Protocol())
+	require.Equal(t, "127.0.0.1", h.Address())
 	h.Disconnect()
 	require.False(t, h.IsConnected())
 }

localhost.go

@@ -19,6 +19,16 @@ type Localhost struct {
 	Enabled bool `yaml:"enabled" validate:"required,eq=true" default:"true"`
 }
 
+// Protocol returns the protocol name, "Local"
+func (c *Localhost) Protocol() string {
+	return "Local"
+}
+
+// IPAddress returns the connection address
+func (c *Localhost) IPAddress() string {
+	return "127.0.0.1"
+}
+
 // String returns the connection's printable name
 func (c *Localhost) String() string {
 	return name

ssh.go

@@ -51,6 +51,16 @@ func (c *SSH) SetDefaults() {
 	}
 }
 
+// Protocol returns the protocol name, "SSH"
+func (c *SSH) Protocol() string {
+	return "SSH"
+}
+
+// IPAddress returns the connection address
+func (c *SSH) IPAddress() string {
+	return c.Address
+}
+
 // String returns the connection's printable name
 func (c *SSH) String() string {
 	if c.name == "" {

winrm.go

@@ -60,6 +60,16 @@ func (c *WinRM) SetDefaults() {
 	}
 }
 
+// Protocol returns the protocol name, "WinRM"
+func (c *WinRM) Protocol() string {
+	return "WinRM"
+}
+
+// IPAddress returns the connection address
+func (c *WinRM) IPAddress() string {
+	return c.Address
+}
+
 // String returns the connection's printable name
 func (c *WinRM) String() string {
 	if c.name == "" {