Another option you have is to use a
TcpClient and
NetworkStream to communicate with a telnet server. Here's a small example of doing this (It's setup in a console application for this example).
We got 2 methods (other than Main), one for writing data to the steam and one for reading the response received back:
WriteIn - private static void WriteIn(string input)
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{
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if (stream.CanWrite)
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{
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writeBuffer = System.Text.Encoding.ASCII.GetBytes(input);
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stream.Write(writeBuffer, 0, writeBuffer.Length);
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}
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}
ReadOut - private static string ReadOut()
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{
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string output = null;
-
-
if (stream.CanRead)
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{
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readBuffer = new byte[tcpClient.ReceiveBufferSize];
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stream.Read(readBuffer, 0, tcpClient.ReceiveBufferSize);
-
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output = System.Text.Encoding.ASCII.GetString(readBuffer).Trim();
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}
-
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return output;
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}
For this example we have 4 variables that are global to our application
- private static NetworkStream stream;
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private static TcpClient tcpClient;
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private static byte[] writeBuffer;
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private static byte[] readBuffer;
And our Main method does all the communicating with the telnet server:
Main - static void Main(string[] args)
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{
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try
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{
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using (tcpClient = new TcpClient())
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{
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Console.WriteLine("Please enter the host IP:");
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string host = Console.ReadLine();
-
-
Console.WriteLine("Please provide the port to connect on:");
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int port = int.Parse(Console.ReadLine());
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tcpClient.Connect(host, port);
-
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using (stream = tcpClient.GetStream())
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{
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Console.WriteLine(ReadOut());
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Console.WriteLine("Enter your username:");
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WriteIn(Console.ReadLine());
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Console.WriteLine(ReadOut());
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Console.WriteLine("Enter your password:");
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WriteIn(Console.ReadLine());
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Console.WriteLine(ReadOut());
-
-
-
}
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}
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//keep it open
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Console.ReadLine();
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}
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catch (SocketException ex)
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{
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Console.WriteLine("Socket Error: {0}", ex.Message);
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}
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catch (Exception ex)
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{
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Console.WriteLine("ERROR: {0}", ex.Message);
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}
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}
Once you enter your username & password then you can issue your commands with
WriteIn and use
ReadOut to read the response.
Hope this helps and gives you another option
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