/*
  Telnet client
 
 This sketch connects to a a telnet server (http://www.google.com)
 using an Arduino Wiznet Ethernet shield.  You'll need a telnet server 
 to test this with.
 Processing's ChatServer example (part of the network library) works well, 
 running on port 10002. It can be found as part of the examples
 in the Processing application, available at 
 http://processing.org/
 
 Circuit:
 * Ethernet shield attached to pins 10, 11, 12, 13
 
 created 14 Sep 2010
 modified 9 Apr 2012
 by Tom Igoe
 modified 12 Aug 2013
 by Soohwan Kim
 Modified 18 Aug 2015
 by Vassilis Serasidis
 
 =========================================================
 Ported to STM32F103 on 18 Aug 2015 by Vassilis Serasidis

 <---- Pinout ---->
 W5x00 <--> STM32F103
 SS    <-->  PA4 <-->  BOARD_SPI1_NSS_PIN
 SCK   <-->  PA5 <-->  BOARD_SPI1_SCK_PIN
 MISO  <-->  PA6 <-->  BOARD_SPI1_MISO_PIN
 MOSI  <-->  PA7 <-->  BOARD_SPI1_MOSI_PIN
 =========================================================
 
 */

#include <SPI.h>
#include <Ethernet_STM.h>

// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
#if defined(WIZ550io_WITH_MACADDRESS) // Use assigned MAC address of WIZ550io
;
#else
byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
#endif  

IPAddress ip(192,168,1,177);

// Enter the IP address of the server you're connecting to:
IPAddress server(1,1,1,1); 

// Initialize the Ethernet client library
// with the IP address and port of the server 
// that you want to connect to (port 23 is default for telnet;
// if you're using Processing's ChatServer, use  port 10002):
EthernetClient client;

void setup() {
  // start the Ethernet connection:
#if defined(WIZ550io_WITH_MACADDRESS)
  Ethernet.begin(ip);
#else
  Ethernet.begin(mac, ip);
#endif
 // Open serial communications and wait for port to open:
  Serial.begin(9600);
   while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }


  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, 10002)) {
    Serial.println("connected");
  } 
  else {
    // if you didn't get a connection to the server:
    Serial.println("connection failed");
  }
}

void loop()
{
  // if there are incoming bytes available 
  // from the server, read them and print them:
  if (client.available()) {
    char c = client.read();
    Serial.print(c);
  }

  // as long as there are bytes in the serial queue,
  // read them and send them out the socket if it's open:
  while (Serial.available() > 0) {
    char inChar = Serial.read();
    if (client.connected()) {
      client.print(inChar); 
    }
  }

  // if the server's disconnected, stop the client:
  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
    // do nothing:
    while(true);
  }
}




