fixing problem of missing connection after first iteration

Author: maidnl

libraries/WiFiS3/src/Modem.cpp

@@ -158,6 +158,9 @@ bool ModemClass::read_by_size_finished(string &rx) {
             string n = rx.substr(pos_space,pos);
             int to_be_rx = atoi(n.c_str());
             if(to_be_rx <= 0) {
+               while( _serial->available() ){
+                  _serial->read();
+               }
                rv = true;
                first_call = true;
                st = IDLE;
@@ -216,6 +219,9 @@ bool ModemClass::buf_read(const string &prompt, string &data_res) {
                if(data_res.size() > 0) {
                   data_res = data_res.substr(0, data_res.length() - (sizeof(RESULT_OK) - 1));
                }
+               else {
+                  break;
+               }
             }
          }
          else {

libraries/WiFiS3/src/WiFiClient.cpp

@@ -130,7 +130,6 @@ int WiFiClient::_read() {
             }
          }
          else {
-            this->flush();
             rv = 0;
          }
       }

libraries/WiFiS3/src/WiFiSSLClient.cpp

@@ -131,7 +131,6 @@ int WiFiSSLClient::_read() {
             }
          }
          else {
-            this->flush();
             rv = 0;
          }
       }

libraries/WiFiS3/src/WiFiUdp.cpp

@@ -187,7 +187,6 @@ int WiFiUDP::_read() {
             }
          }
          else {
-            this->flush();
             rv = 0;
          }
       }