WiFi clients: connection lost issue

When a client looses connection the client needs to be stopped before
calling connect again

Author: andreagilardoni

Diff for: libraries/WiFiS3/src/WiFiClient.cpp

@@ -227,6 +227,12 @@ uint8_t WiFiClient::connected() {
       if(modem.write(string(PROMPT(_CLIENTCONNECTED)),res, "%s%d\r\n" , CMD_WRITE(_CLIENTCONNECTED), _sock)) {
          rv = atoi(res.c_str());
       }
+
+      if(rv == 0) {
+         // if sock >= 0 -> it means we were connected, but something happened and we need
+         // to reset this socket in order to be able to connect again
+         stop();
+      }
    }
 
    modem.noDebug();

Diff for: libraries/WiFiS3/src/WiFiSSLClient.cpp

@@ -240,6 +240,12 @@ uint8_t WiFiSSLClient::connected() {
       if(modem.write(string(PROMPT(_SSLCLIENTCONNECTED)),res, "%s%d\r\n" , CMD_WRITE(_SSLCLIENTCONNECTED), _sock)) {
          rv = atoi(res.c_str());
       }
+
+      if(rv == 0) {
+         // if sock >= 0 -> it means we were connected, but something happened and we need
+         // to reset this socket in order to be able to connect again
+         stop();
+      }
    }
    return rv;
 }