Non tibia programming

[FeD]

Hi everyone, its been a while since i dont post here cause im not playing/programming tibia at the moment...

A few days ago i found a source code but as im not familiarized with c++ some of the code beats my cnowdlege maybe someone could explain / translate some of it.

cout << "Getting debug privileges..." << endl;
        EnableDebugPriv();
        cout << "Opening Process..." << endl;
        HANDLE hProc = OpenProcess(PROCESS_ALL_ACCESS, false, GetPIDForProcess("PROCESS.EXE"));
        if(hProc)
        {
            cout << "Process opened... Patching" << endl;
            DWORD gameBase = GetDLLBase("Game.dll",GetPIDForProcess("Process.EXE"));
			DWORD dSize = 0;

NPATCH(0x4559EC,"\x60\x0B\xC0\x75\x2F\x8A\x8E\xD0\x02\x00\x00\x80\xF9\x01\x74\x51\xC6\x86\xD0\x02\x00\x00\x01\xC6\x86\xD1\x02\x00\x00\x01\xC6\x86\xD2\x02\x00\x00\xFF\x8B\xCE\xB8\xFF\x01\x01\xFF\xFF\x15\x60\x5A\x45\x00\xEB\x2D\x8A\x8E\xD0\x02\x00\x00\x80\xF9\xFF\x74\x22\xC6\x86\xD0\x02\x00\x00\xFF\xC6\x86\xD1\x02\x00\x00\xFF\xC6\x86\xD2\x02\x00\x00\xFF\x8B\xCE\xB8\xFF\xFF\xFF\xFF\xFF\x15\x60\x5A\x45\x00\x61\xB8\x01\x00\x00\x00\x23\xD8\x89\x44\x24\xE4\xFF\x35\x65\x5A\x45\x00\xC3",116);
            DWORD addr[3];
            addr[0] = gameBase + 0x29E270; //References to the Game.dll
            addr[1] = gameBase + 0x39A3BF; //
            addr[2] = 0x4559EC;            //Detour
            NPATCH(0x455A60,&addr[0],sizeof(DWORD));
            NPATCH(0x455A65,&addr[1],sizeof(DWORD));
            NPATCH(0x455A6A,&addr[2],sizeof(DWORD));
            PATCH(0x39A3B9,"\xFF\x25\x6A\x5A\x45\x00",6); //Plant detour
            if(dSize == 0)
            {
                cout << "Failed to enable colored invisibles" << endl;
            }
}

My main problem would be the game.dll part and the NPATCH

Im programming in VB.net

Thanks in advance

[Jesper_Kladden]

I have no idea what the "NPATCH" is.. But it looks like it wants to send a packet or something ;o

[Snowak]

GetDLLBase("Game.dll",GetPIDForProcess("Process.EXE"));

it returns the address where the DLL has been loaded in the memory, it's nice somebody takes care of it, because most of the people quite often assume the reallocation won't happen

as for the NPATCH

NPATCH(0x455A6A,&addr[2],sizeof(DWORD));

Generally it looks like a macro for memcpy, it prolly just convert the parameters

inline void NPATCH(unsigned int addr, void* buf, unsigned int bufSize)
{
  memcpy((void*)addr, buf, bufSize);
}

The PATCH is similiar and even can be declared in the same way as NPATCH above. PATCH is supposed to take a string literal as 2nd parameter but in fact it's passed as a pointer behind the scene, so the above will work for it too.

[FeD]

I know patch, just writes in memory, i can do taht by basic memory writing. I guess the NPATCH is something like that, but i cant get how could it be dont in vb.net.

About the gamedlll, any idea how it can be done in vb.net?