WiFiClient and WiFiServer status() method implementation

src/WiFiClient.cpp

@@ -18,6 +18,7 @@
 */
 
 #include "utility/WiFiSocket.h"
+#include "utility/tcp_states.h"
 
 #include "WiFi101.h"
 #include "WiFiClient.h"
@@ -190,8 +191,9 @@ uint8_t WiFiClient::connected()
 
 uint8_t WiFiClient::status()
 {
-	// Deprecated.
-	return 0;
+	if (_socket != -1 && WiFiSocket.connected(_socket))
+		return ESTABLISHED;
+	return CLOSED;
 }
 
 WiFiClient::operator bool()

src/WiFiServer.cpp

@@ -18,6 +18,7 @@
 */
 
 #include "utility/WiFiSocket.h"
+#include "utility/tcp_states.h"
 
 #include "WiFiClient.h"
 #include "WiFiServer.h"
@@ -102,8 +103,9 @@ WiFiClient WiFiServer::available(uint8_t* status)
 }
 
 uint8_t WiFiServer::status() {
-	// Deprecated.
-	return 0;
+	if (_socket != -1 && WiFiSocket.listening(_socket))
+		return LISTEN;
+	return CLOSED;
 }
 
 size_t WiFiServer::write(uint8_t b)

src/utility/tcp_states.h

@@ -0,0 +1,19 @@
+#ifndef TCP_STATES_H
+#define TCP_STATES_H
+
+// common constants for client.state() return values
+enum tcp_state {
+  CLOSED      = 0,
+  LISTEN      = 1,
+  SYN_SENT    = 2,
+  SYN_RCVD    = 3,
+  ESTABLISHED = 4,
+  FIN_WAIT_1  = 5,
+  FIN_WAIT_2  = 6,
+  CLOSE_WAIT  = 7,
+  CLOSING     = 8,
+  LAST_ACK    = 9,
+  TIME_WAIT   = 10
+};
+
+#endif