Reinstate NetworkServer begin and write

Author: PaulZC

Firmware/RTK_Surveyor/NetworkServer.h

@@ -63,8 +63,17 @@ class NetworkServer : public Server
 
     void begin()
     {
-        if (_server)
-            _server->begin();
+        // if (_server) _server->begin(); doesn't work...
+#if defined(COMPILE_ETHERNET)
+        if (_networkType == NETWORK_TYPE_ETHERNET)
+            if (_server)
+                ((EthernetServer *)_server)->begin();
+#endif  // COMPILE_ETHERNET
+#if defined(COMPILE_WIFI)
+        if (_networkType == NETWORK_TYPE_WIFI)
+            if (_server)
+                ((WiFiServer *)_server)->begin();
+#endif  // COMPILE_WIFI        
     }
 
     //------------------------------
@@ -161,8 +170,17 @@ class NetworkServer : public Server
 
     size_t write(uint8_t b)
     {
-        if (_server)
-            return _server->write(b);
+        // if (_server) return _server->write(b); doesn't work...
+#if defined(COMPILE_ETHERNET)
+        if (_networkType == NETWORK_TYPE_ETHERNET)
+            if (_server)
+                return ((EthernetServer *)_server)->write(b);
+#endif  // COMPILE_ETHERNET
+#if defined(COMPILE_WIFI)
+        if (_networkType == NETWORK_TYPE_WIFI)
+            if (_server)
+                return ((WiFiServer *)_server)->write(b);
+#endif  // COMPILE_WIFI        
         return 0;
     }
 
@@ -172,8 +190,17 @@ class NetworkServer : public Server
 
     size_t write(const uint8_t *buf, size_t size)
     {
-        if (_server)
-            return _server->write(buf, size);
+        // if (_server) return _server->write(buf, size); doesn't work...
+#if defined(COMPILE_ETHERNET)
+        if (_networkType == NETWORK_TYPE_ETHERNET)
+            if (_server)
+                return ((EthernetServer *)_server)->write(buf, size);
+#endif  // COMPILE_ETHERNET
+#if defined(COMPILE_WIFI)
+        if (_networkType == NETWORK_TYPE_WIFI)
+            if (_server)
+                return ((WiFiServer *)_server)->write(buf, size);
+#endif  // COMPILE_WIFI        
         return 0;
     }