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downloading the source of a webpage using UDP protocol

Joeadeoye asked:

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Hello, i want to download the webpage of a website using UDP protocol. I only know how to do this using TCP protocol using TCPClient. But this time around, i need to do the same task using UDP protocol and i am clueless. Pls any help will be appreciated.

Here is the sample code of what i am trying to implement. But this example uses TCP protocol. But i need to do the same thing using UDP protocol.

Dim c As New TcpClient
Dim i As Integer
Dim nw As NetworkStream

c.Connect("", 80)
nw = c.GetStream()

Dim packet As String = "GET HTTP/1.1" & vbCrLf & _
"Host:" & vbCrLf & _
"Connection: Close" & vbCrLf & vbCrLf

Dim toSend As Byte() = Encoding.ASCII.GetBytes(packet)
nw.Write(toSend, 0, toSend.Length)

'reading response
Dim buffer(1024) As Byte
Dim received As String = ""
While True
    i = nw.Read(buffer, 0, buffer.Length)
    If i = 0 Then
        Exit While
    End If
    Console.WriteLine(Encoding.ASCII.GetString(buffer, 0, i))
End While
Console.WriteLine("Finished Receiving....")

If you can help me re-write the sample code to use UDP protocol instead of the TCP, it will be greatly appreciated. And if also i need to use raw sockets and set the protocol to UDP. Pls any help will be greatly appreciated.

Tags: VB, VB.NET


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