AutoIt

Receive a Single Byte from a Socket

Demonstrates Socket.ReceiveByte, which reads exactly one byte and stores its numeric value in the ReceivedInt property. The argument selects signed or unsigned interpretation.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

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Local $bSuccess = False

$oSocket = ObjCreate("Chilkat.Socket")

;  Connect to the server using TLS.
Local $bTls = True
Local $iMaxWaitMs = 5000
$bSuccess = $oSocket.Connect("example.com",5000,$bTls,$iMaxWaitMs)
If ($bSuccess = False) Then
    ConsoleWrite($oSocket.LastErrorText & @CRLF)
    Exit
EndIf

;  Read exactly one byte.  Its numeric value is stored in the ReceivedInt property.  Passing True
;  interprets the byte as unsigned (0 through 255); False interprets it as signed.
Local $bUnsigned = True
$bSuccess = $oSocket.ReceiveByte($bUnsigned)
If ($bSuccess = False) Then
    ConsoleWrite($oSocket.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Received byte value: " & $oSocket.ReceivedInt & @CRLF)