Jump to content
Sign in to follow this  

Server and Client TCP Help(Updated)

Recommended Posts


*Please Do not forget to read updated information at bottom of edited post and or edited Autoit code, thank you*

Hi everyone, I was working on a Server and Client program, not in the most complex way but only for simple Server and Client related automation. I already started working on it but I am now stuck while looking at the TCPRecv in the AutoIt Help file. I think I need to still modify my current coding in both the Server and Client Programs. Could you guys give me a little hand here or steer me into the right direction?

Updated/Current Server Code:

#include <ButtonConstants.au3>
#include <EditConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

Opt('MustDeclareVars', 1)
HotKeySet("{F10}", "Leave") ; Set HotKey

Func Leave()
;SERVER!! Start Me First !!!!!!!!!!!!!!!


Func Example()
    ; Set Some reusable info
    ; Set your Public IP address (@IPAddress1) here.
;   Local $szServerPC = @ComputerName
;   Local $szIPADDRESS = TCPNameToIP($szServerPC)
    Local $szIPADDRESS = @IPAddress1
    Local $nPORT = 80
    Local $MainSocket, $GOOEY, $edit, $ConnectedSocket, $szIP_Accepted
    Local $msg, $recv, $Button1, $Button2

    ; Start The TCP Services

    ; Create a Listening "SOCKET".
    ;   Using your IP Address and Port 33891.
    $MainSocket = TCPListen($szIPADDRESS, $nPORT)

    ; If the Socket creation fails, exit.
    If $MainSocket = -1 Then Exit

    ; Create a GUI for messages
    #Region ### START Koda GUI section ### Form=
    $GOOEY = GUICreate("Server", 625, 445, 192, 124)
    $edit = GUICtrlCreateEdit("", 8, 8, 601, 385, BitOR($ES_AUTOVSCROLL,$ES_WANTRETURN,$WS_VSCROLL))
    $Button1 = GUICtrlCreateButton("Start Server", 8, 400, 121, 33, $WS_GROUP)
    $Button2 = GUICtrlCreateButton("Close Server", 487, 400, 121, 33, $WS_GROUP)
    #EndRegion ### END Koda GUI section ###

    ; Initialize a variable to represent a connection
    $ConnectedSocket = -1

    ;Wait for and Accept a connection
        $ConnectedSocket = TCPAccept($MainSocket)
    Until $ConnectedSocket <> -1

    ; Get IP of client connecting
    $szIP_Accepted = SocketToIP($ConnectedSocket)

    ; GUI Message Loop
    While 1
        $msg = GUIGetMsg()

        ; GUI Closed
        If $msg = $GUI_EVENT_CLOSE Then ExitLoop

        ; Try to receive (up to) 2048 bytes
        $recv = TCPRecv($ConnectedSocket, 2048)

        ; If the receive failed with @error then the socket has disconnected
        If @error Then ExitLoop

        ; Update the edit control with what we have received
        If $recv <> "" Then GUICtrlSetData($edit, _
                $szIP_Accepted & " > " & $recv & @CRLF & GUICtrlRead($edit))
            Case $recv = "/notepad"

    If $ConnectedSocket <> -1 Then TCPCloseSocket($ConnectedSocket)

EndFunc   ;==>Example

; Function to return IP Address from a connected socket.
Func SocketToIP($SHOCKET)
    Local $sockaddr, $aRet

    $sockaddr = DllStructCreate("short;ushort;uint;char[8]")

    $aRet = DllCall("Ws2_32.dll", "int", "getpeername", "int", $SHOCKET, _
            "ptr", DllStructGetPtr($sockaddr), "int*", DllStructGetSize($sockaddr))
    If Not @error And $aRet[0] = 0 Then
        $aRet = DllCall("Ws2_32.dll", "str", "inet_ntoa", "int", DllStructGetData($sockaddr, 3))
        If Not @error Then $aRet = $aRet[0]
        $aRet = 0

    $sockaddr = 0

    Return $aRet
EndFunc   ;==>SocketToIP

Updated/Current Client Code:

#include <ButtonConstants.au3>
#include <EditConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#Region ### START Koda GUI section ### Form=
$Form1 = GUICreate("Client", 401, 301, 258, 126)
$Button1 = GUICtrlCreateButton("Connect", 8, 256, 89, 33, $WS_GROUP)
$Button2 = GUICtrlCreateButton("Disconnect", 282, 256, 89, 33, $WS_GROUP)
$Input1 = GUICtrlCreateInput("Text", 8, 216, 377, 21)
GUICtrlSetData(-1, "Edit1")
$Button3 = GUICtrlCreateButton("Send", 146, 258, 89, 33, $WS_GROUP)
$Input2 = GUICtrlCreateInput("Ip Address to Connect to", 232, 8, 153, 21)
#EndRegion ### END Koda GUI section ###
$g_IP = "ip address of host/server"
$szData = ""

While 1

$nMsg = GUIGetMsg()
        Case $nMsg = $GUI_EVENT_CLOSE
        Case $nMsg = $Button1
            GUICtrlSetData($Edit1, @CRLF&"Starting TCP Services", 1)
            ; Start The TCP Services
            $socket = TCPConnect( $g_IP, 80 )
            GUICtrlSetData($Edit1, @CRLF&"Connected", 1)
            TCPSend($Socket, "Client: Connected")

        Case $nMsg = $Button2
            GUICtrlSetData($Edit1, @CRLF&"Shutting Client Down", 1)
            GUICtrlSetData($Edit1, @CRLF&"TCP Shut Down", 1)
        Case $nMsg = $Button3
            $RData = GUICtrlRead($Input1)
            $szData = $RData
            TCPSend($Socket, $szData)


Moral/Uses of this program. Basicly for example I run the server file on my computer, and the client on my laptop. They both connect. If I were to send /LockComputer From the Client program to the Server Program, it would activate the computers Lock Feature(The thing were you dont log off but you need a password to get back on) I use both my laptop and computer so I wanted to do some automation commands from my laptop and or vice versa.

Note: I just noticed I had an input box on the Server Program, That isnt really needed so ignore that. If you guys could help me that would be appreciated.


So far the current code I was able to produce, using the info got from the Help file, was able to do some of what I needed. I know its a bit sloppy though but once I get the code right I could make it less sloppy. I am still running on some troubles though. If you guys can help me thank you.

***=Top Priority that I myself will be working on while waiting for responses.

**=Important, Will work on in between working on Top Priority issues.

*=Will work on after others have finished and or if changes are needed.


*Client Connects to Server Successfully: Done(Or so It seems)

**Using Case to allow multiple commands: Not Done

***Select Ip and Port on Client: Not Done

***Select Port for Server: Not Done

**Shut Down Server but not program: Not Done

**Disconnect Client and show disconnection message on server without server program shutting off: Not Done

*Cleaner/Smoother Code and or GUI interface: Not Done

***Split String for commands such as /load http://www.google.com

{something like if client sents "/link http://www.google.com"}

Splits String to know that

$Command = /link

$Link = http://www.google.com

Case $recv = "Link"


Splitting Strings seem to have been completed but only confirmed through tests.

Test Code:

$Word = "/load http://www.youtube.com/"
If StringInStr($Word, "/Load", 2) = True Then
    $Trimmed = StringTrimLeft($Word, 6)
MsgBox(0, "Search result:", $Trimmed)

Another I need is for the Client to receive some things from Server.

For example the client sends /getNotepadText

Server responds sending the client the text that is inside notepad.

I am still working on this myself but I really would appreciate feedback on this, some help, coding, issues and stuff. Some things I don't know as I am still learning/working on it. Ill keep updating this with more info a long the way.

Edit: use when testing on one computer, I noticed that after testing without internet connection.

Edit: Now that I look at it, the code seems a little tooooo sloppy, I think ill consider cleaning it a bit, might make things easier.

Edited by KurogamineNox

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  


Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.