private void InitializeAntiCheatHook()
{
byte[] bytes = HookPtr.GetReturnToPtr();
MemoryModule module = TargetFuncPtr.GetMyModule();
if (module == null)
{
throw new NullReferenceException("Cannot find a module which belongs to the specified pointer.");
}
MemoryAddress codeCave = module.FindCodeCaveInModule((uint)bytes.Length);
CodeCavePatch = new MemoryPatch(codeCave, bytes);
byte[] retToCodeCave = CodeCavePatch.PatchAddress.GetReturnToPtr();
HookPatch = new MemoryPatch(TargetFuncPtr, retToCodeCave);
}
/// <summary>
/// Initializes a new instance of the <see cref="Hook" /> class.
///
/// A hook can be used to create a detour from an original function into your own function.
/// You can then proceed to call the original function by using the method <see cref="CallOriginal" />.
/// </summary>
/// <param name="target">The target delegate we want to detour.</param>
/// <param name="hook">The hook delegate where want it to go.</param>
public Hook(bool useAntiCheatHook = true)
{
try
{
TargetDelegate = GetHookDelegate();
HookDelegate = GetDetourDelegate();
TargetFuncPtr = TargetDelegate.ToFunctionPtr();
HookPtr = HookDelegate.ToFunctionPtr();
byte[] function = HookPtr.CreateFunctionCall();
MemoryPointer codeCavePtr = useAntiCheatHook ? CreateAntiCheatCodeCave(function) : AllocateMemory(function);
FillMemoryPointer(codeCavePtr, function);
}
catch (Exception ex)
{
LoggingService.Error($"Hook {ToString()}, could not be initialized: {ex.Message}");
}
}