Which method to access Telnet data? Socket or TcpClient & Networkstream?

[Guest cgchris99]

I am trying to figure out which is the fastest and most efficient method to become the client to receive information from the host via port 23.

 

I have tested both methods and they seem to both work.

Why should I use one over the other? TcpClient & networkstream or Socket.receive.

 

Thanks for any help

 

 

Method A:

'-----------------------------------------------------------------------

Dim ASCII As Encoding = Encoding.ASCII

Dim StrGet As String = "GVC000"

Dim ByteGet As Byte() = ASCII.GetBytes(StrGet)

Dim RecvBytes(256) As Byte

Dim strRetPage As String = Nothing

Dim hostadd As IPAddress = IPAddress.Parse("192.168.0.3")

Dim ephost As New IPEndPoint(hostadd, 23)

Dim s As New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)

s.Connect(ephost)

If Not s.Connected Then

MsgBox("Unable to connect")

End If

s.Send(ByteGet, ByteGet.Length, 0)

 

Dim bytes As Int32 = s.Receive(RecvBytes, RecvBytes.Length, 0)

strRetPage = "Data Recvd: "

strRetPage = strRetPage + ASCII.GetString(RecvBytes, 0, bytes)

While bytes > 0

bytes = s.Receive(RecvBytes, RecvBytes.Length, 0)

strRetPage = "Data Recvd: "

strRetPage = strRetPage + ASCII.GetString(RecvBytes, 0, bytes)

End While

 

 

MethodB

'-----------------------------------------------------------------------

Dim tcpClient1 as New TcpClient()

Dim NS as NetworkStream

Dim bytes(tcpclient1.RecieveBufferSize) as byte

Dim hostaddr1 as IPAddress = IPAddress.Parse("192.168.0.3")

Dim MyEndPoint1 as New IPEndPoint(hostaddr1,23)

 

tcpClient1.Connect(MyEndPoint1)

NS = tcpClient1.GetStream

ReDim bytes(tcpClient1.ReceiveBufferSize)

BuffSize = CInt(tcpClient1.ReceiveBufferSize)

If ns.DataAvailable then

NS.Read(bytes, 0, BuffSize)

Dim Buff2 As String = Encoding.ASCII.GetString(bytes)

end if

[Derek Stone]

NetworkStream is a bit easier to work with, as you don't have to worry about buffer sizes as much as you need to with Socket.Receive. This is the major benefit of all streams, which you'll discover once you get accustomed to the framework a bit more.

[Guest cgchris99]

Thanks for the advice on network streams