how to talk from udp server to udp client.

[yucatan]

Hello

i'm building an udp server with an udp client but i seems i cant get it working to send a message from the udp server to the udp client

Anyone any help?

client:

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UDPStartup()
;188.165.40.108:29022
$socket = udpopen("127.0.0.1", 65532)
If @error <> 0 Then
    ConsoleWrite(@error)
    Exit
EndIf



;$cdkey = $argv[3]
;$cdkeypart = substr($cdkey, 0, 16)
;$pbguid = "123456789abcdef1234567890abcdefa"


;ÿÿÿÿgetKeyAuthorize 0 XHU6E7666HHJPAP3 PB 123456789abcdef1234567890abcdefa     WL3ZW7QJXJA3P3GE8DE3
$data = ""
$auth =   udpsend($master, "ÿÿÿÿgetKeyAuthorize 0 P7XLP5EH6A5HJL7L PB 123456789abcdef1234567890abcdefa")
$status = udpSend($socket, 'ÿÿÿÿgetchallenge 0')
While 1
$data = udpRecv($socket, 99999)
if $data <> "" Then
           ConsoleWrite($data & @CRLF)
        exitloop
   EndIf
WEnd

$challange = StringMid($data, 22, 20)
ConsoleWrite($challange&@LF)


$challange = StringReplace($challange, " ", "")
ConsoleWrite($challange&@lf)

UDPSend($socket, "ÿÿÿÿconnect \cg_predictItems\1\cl_anonymous\0\cl_punkbuster\1\cl_voice\1\cl_wwwDownload\1\rate\25000\snaps\20\name\yorickispro\protocol\118\challenge\"&$challange&"\qport\30336")
;ÿÿÿÿconnect "\cg_predictItems\1\cl_anonymous\0\cl_punkbuster\1\cl_voice\1\cl_wwwDownload\1\rate\25000\snaps\20\name\FMNZRIMY\protocol\118\challenge\-1350344700\qport\30336"

While 1
$data = udpRecv($socket, 99999)
if $data <> "" Then
           ConsoleWrite($data & @CRLF)
        ;exitloop
   EndIf
WEnd


;ConsoleWrite($teller & @CRLF)
;until $henk=0

server:

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#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <EditConstants.au3>
#include <StaticConstants.au3>
#include <Array.au3>
UDPStartup()
OnAutoItExitRegister("Cleanup")

; Bind to a SOCKET
;==============================================
Local $socket = UDPBind("127.0.0.1", 65532)
If @error <> 0 Then Exit

Local $file, $btn, $msg, $myedit, $msg


       GUICreate("My GUI edit",700,700) ; will create a dialog box that when displayed is centered
$file = GUICtrlCreateInput("", 10, 650, 300, 20)
$myedit = GUICtrlCreateEdit("" & @CRLF, 0, 0, 600, 600, $ES_AUTOVSCROLL + $WS_VSCROLL)
$handle = GUICtrlGetHandle ( $myedit )


GUICtrlSetData($myedit, "UDP server started"&@crlf,"1")
    GUISetState()
    ; Run the GUI until the dialog is closed
    While 1
        $data = ""
        $msg = GUIGetMsg()
         If $msg = $GUI_EVENT_CLOSE Then ExitLoop
        Local $data = UDPRecv($socket, 99999)
            If $data <> "" Then UDPSend($socket[1], "ÿÿÿÿchallengeResponse 1425526264")

            GUICtrlSetData($myedit, $data &@crlf,"1")





WEnd
        GUIDelete()
        exit









While 1

WEnd
sleep (100)



$data = ""
While 1

    Local $data = UDPRecv($socket, 99999)
    If $data <> "" Then
        ConsoleWrite($data & @LF)
    EndIf
    Sleep(100)
WEnd




Func Cleanup()
    UDPCloseSocket($socket)
    UDPShutdown()
EndFunc   ;==>Cleanup

[water]

Have a look at the example code in UDPRecv and UDPSend. Combine both and you have an UDP client/server application.

[yucatan]

water i did take a look in the help filed but the help files only explaine how the client can send to the server that part i got working but i'm unable to use that same socket to send data from the server towards the client

[water]

If you send data from A to B then A is the client and B the server. If you then want to send some data back from B to A then A needs to be the server.

Which means you need to run client and server on A and B.

[yucatan]

Water is this only with autoit applications or is this just the UDP protocol?

because for example call of duty uses udp to communicate between client een server but ofcrouse people that play call of duty dont have port forwarding.

but still a call of duty server is able to send data towards call of duty players. and i'm sure this is done by udp

do you maby have an explaination for that?

[water]

Looks like your already has both functions implemented (send and receive).

If it is not working you need to add some debugging code (MsgBox etc.).

[yucatan]

i think i already found the problem i'm sending towards an socket but thats not working in UDP i think i should be sending toward ip:port gonna check it out tomorrow

Kind regards

[water]

I don't understand. A socket address is the IP address plus port number. So this aren't two different things.

[yucatan]

the problem i'm having is that when i from the server send data towards the socket then the server recieves its own sended data instead of it has been sended towards the client

[water]

Looks like the IP used for sending the data is wrong.

[yucatan]

water how exacly do you mean ? you mean the

UDPSend($socket[1], "ÿÿÿÿchallengeResponse 1425526264") in the server?

[water]

If a message you send from the server to the client  is being read from the server then you either

• send the message to the wrong ip:port
• ip:port is correct but the message is forwarded by the client to the sender