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Thread: get client action from bytes

  1. #1
    Junior Member
    Join Date
    Mar 2010
    Thanked 0 Times in 0 Posts

    Default get client action from bytes


    I have a "minecraft" server in my pc. and i am writing a tunnel to block some actions from the players.

    so, the client's connect to my program, and i foward all bytes received, to the server, and the same when the server send something to the client.

    while ((bytesRead = In.read(byteBuffer)) != -1) {
                    if (Debug.dmode && isClient ) {
                        //System.out.println("byte %d" + totalBytesMoved);
                        //System.out.println(stringToHex(new String(byteBuffer)));
                    Out.write(byteBuffer, 0, bytesRead);

    It works, i can play the game with the tunnel working, and print only the bytes that the client send to the server.

    The problem is, i want to block an specific action, (destroying block from a certain area - if you know the game), and i cant understand the actions from the bytes.. i tried so many times to see the bytes, but look like its not the same to same action, because maybe the content, like position of the player, are in 2 or more bytes.

    anybody have any idea of how to do it?

    Thx for all.
    sorry for the english

  2. #2
    Junior Member
    Join Date
    Feb 2011
    Thanked 2 Times in 2 Posts

    Default Re: get client action from bytes

    You have to write as many bytes as possible and start analysing it.
    Try to find some simple bytes sequences occurring when you "destroy the blocks" or whatever you do Maybe you will find your sequence.
    It could take long hours and may be problematic if you don't know how (used RMI, ICE or plain sockets) the author wrote the program.

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