(Classic ASP) TCP Socket Send Byte and Receive Byte

Demonstrates the Chilkat Socket ReceiveByte and SendByte method.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<%
' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Socket")
set sock = Server.CreateObject("Chilkat.Socket")

' --------------------------------------------------------------------
' This example uses the public TCP echo service at https://tcpbin.com/
' --------------------------------------------------------------------

useTls = 0
port = 4242
maxWaitMs = 5000
success = sock.Connect("tcpbin.com",port,useTls,maxWaitMs)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( sock.LastErrorText) & "</pre>"
    Response.End
End If

' Wait a max of 2 seconds for a response..
sock.MaxReadIdleMs = 2000

' Send a byte.
success = sock.SendByte(96)

' The tcpbin.com echo server only echoes after receiving an LF (linefeed char)
success = sock.SendByte(10)

' The echo server will echo back whatever is sent to it.
' We should be able to read the same byte back..
' After successfully reading, the byte value is available in the ReceivedInt property.
treatAsUnsignedInt = 1
success = sock.ReceiveByte(treatAsUnsignedInt)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( sock.LastErrorText) & "</pre>"
    Response.End
End If

' Let's look at the value of the byte received.  It should be 96.
Response.Write "<pre>" & Server.HTMLEncode( sock.ReceivedInt) & "</pre>"

' The echo server also echoed the LF back.
success = sock.ReceiveByte(treatAsUnsignedInt)
' Assuming success..

' Should be decimal 10.
Response.Write "<pre>" & Server.HTMLEncode( sock.ReceivedInt) & "</pre>"

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