//[UnmanagedFunctionPointer(CallingConvention.Cdecl,
// CharSet = CharSet.Unicode,
// SetLastError = true)]
//unsafe delegate Int64 MessagePrintf_Delegate(void* a1, int ba2, [MarshalAs(UnmanagedType.LPWStr)] StringBuilder message, int a3);
//MessagePrintf_Delegate originalMethod = null;
//MessagePrintf_Delegate originalMethodByPass = null;
//unsafe Int64 MyMessagePrintf(void* a1, int a2, [MarshalAs(UnmanagedType.LPWStr)] StringBuilder message, int a3)
//{
// Native.MessageBeep((uint)Native.BeepType.Asterisk);
// //lock (this._messageQueue)
// //{
// // if (this._messageQueue.Count < 1000)
// // {
// // // Add message to send to FileMonitor
// // this._messageQueue.Enqueue(message.ToString());
// // }
// //}
// _server.ReportMessage(0, "procaddress:" + message.ToString());
// return originalMethod(a1, a2, message, a3);
//}
#endregion
unsafe IntPtr FindThePrintFunction(Native.ModuleInformation moduleInformation, byte[] signature)
{
byte *baseAddr = (byte *)moduleInformation.lpBaseOfDll;
uint dllSize = moduleInformation.SizeOfImage;
uint i = 0;
for (; i < dllSize; i++)
{
for (int j = 0; j < (sizeof(byte) * signature.Length); j++)
{
if (*(baseAddr + j) != signature[j])
{
break;
}
if (j == (sizeof(byte) * signature.Length) - 1)
{
return((IntPtr)baseAddr);
}
}
baseAddr++;
}
_server.ReportMessage(0, "failed!!");
return(IntPtr.Zero);
}
unsafe public void Run(EasyHook.RemoteHooking.IContext context, string channelName)
{
string s = dllpurpose;
int id = EasyHook.RemoteHooking.GetCurrentProcessId();
_server.HookIsInstalled(id);
EasyHook.LocalHook chatMessageFunctionHook = null;
try
{
Native.ModuleInformation moduleInformation = new Native.ModuleInformation();
var size = Convert.ToUInt32(Marshal.SizeOf(typeof(Native.ModuleInformation)));
Native.GetModuleInformation(Process.GetCurrentProcess().Handle, Native.GetModuleHandle("client.dll"), out moduleInformation, size);
var pointer = FindThePrintFunction(moduleInformation, messageSignature);
originalMethod = Marshal.GetDelegateForFunctionPointer <DotaChatFunction_Delegate>(pointer);
chatMessageFunctionHook = EasyHook.LocalHook.Create(
pointer,
new DotaChatFunction_Delegate(MyDotaChatFunction),
this);
chatMessageFunctionHook.ThreadACL.SetExclusiveACL(new Int32[] { 0 });
originalMethodByPass = Marshal.GetDelegateForFunctionPointer <DotaChatFunction_Delegate>(chatMessageFunctionHook.HookBypassAddress);
_server.ReportMessage(id, "Local Hook Installation complete.");
try
{
// Loop until FileMonitor closes (i.e. IPC fails)
while (true)
{
System.Threading.Thread.Sleep(500);
string[] queued = null;
lock (_messageQueue)
{
queued = _messageQueue.ToArray();
_messageQueue.Clear();
}
// Send newly monitored file accesses to FileMonitor
if (queued != null && queued.Length > 0)
{
_server.ReportChatMessages(queued);
}
else
{
_server.Ping();
}
}
}
catch (Exception ex)
{
// Ping() or ReportMessages() will raise an exception if host is unreachable
try
{
_server.ReportException(ex);
}
catch
{
}
}
}
catch (Exception ex)
{
_server.ReportException(ex);
}
finally
{
try
{
if (chatMessageFunctionHook != null)
{
chatMessageFunctionHook.Dispose();
}
EasyHook.LocalHook.Release();
}
catch (Exception ex)
{
_server.ReportException(ex);
}
}
}
