client telnet

Hi, I 'm doing a project and I need to create a telnet connection , telnet to send commands to a device, someone could help me about it. regards

the idea is to establish a telnet connection with a telnet server is already listening and once established the connection telnet command enivar

1. connect

2. sending root

3. control command wait 1sec

4. Sending poweroff

Help me please.....

@IBAction func btnenviar(sender: UIBarButtonItem) {

let addr = "192.168.42.1"

let port = 23

var str : String = ""

var inp :NSInputStream?

var out :NSOutputStream?

NSStream.getStreamsToHostWithName(addr, port: port, inputStream: &inp, outputStream: &out)

let inputStream = inp!

let outputStream = out!

inputStream.open()

outputStream.open()

//envio usuario root, no hace falta enviar password comprobado con un software de cliente telnet

str="root"

var writeData = [UInt8]((str + "\n").utf8)

outputStream.write(&writeData, maxLength: writeData.count)

//envio codigo de espera de 1 seg al dispositivo

str="sleep 1"

writeData = [UInt8]((str + "\n").utf8)

outputStream.write(&writeData, maxLength: writeData.count)

/

/

// envio comando de apagado.

str="poweroff"

writeData = [UInt8]((str + "\n").utf8)

outputStream.write(&writeData, maxLength: writeData.count)

outputStream.close()

}

It does not fail but does not work