Miscellany

void L2Ex::HookExBuilderCommands()
{
	WriteServerHook(JMP,(DWORD *)0x008771DC,(DWORD *)ExBuilderHook2,0);
	CLog::Instance()->AddLog("Wrote HookExBuilderCommands...");
}



void L2Ex::WriteServerMemory(DWORD *pAddress, LPCVOID pData, BYTE length)
{
	DWORD dwOldProtect = NULL;
	SIZE_T bWritten = NULL;

	CLog::Instance()->AddLog("[WriteServerMemory](pData: 0x%x)",(DWORD)pData);

	if (!VirtualProtect((LPVOID)(pAddress), length, PAGE_EXECUTE_READWRITE, &dwOldProtect))
	{
		MessageBox(NULL, "Unable to change memory protection 1.", "Error", MB_OK);
	}

	if (!WriteProcessMemory(L2Server, (LPVOID)(pAddress), (LPCVOID)pData, length, &bWritten))
	{
		MessageBox(NULL, "Unable to write to memory.", "Error", MB_OK);

		return;
	}

	if (!VirtualProtect((LPVOID)(pAddress), length, dwOldProtect, &dwOldProtect))
	{
		MessageBox(NULL, "Unable to change memory protection 2.", "Error", MB_OK);
	}
	
}

void L2Ex::WriteServerHook(BYTE bType, DWORD *pAddress, DWORD *pFunction, BYTE bNops)
{
	int iSizeBuffer = 5 + bNops;
	BYTE *bBuffer = new BYTE[iSizeBuffer];
	bBuffer[0] = bType;
	*(DWORD *) (bBuffer + 1) = (DWORD)pFunction - (DWORD)(pAddress+5);
	int i = 5;
	while ( bNops > 0)
	{
		bBuffer[i] = (BYTE)NOP;
		++i;
		--bNops;
	}

	CLog::Instance()->AddLog("[WriteServerHook](pFunction: 0x%x bBuffer: 0x%x)",(DWORD)pFunction,(DWORD)bBuffer);
	WriteServerMemory((DWORD *)pAddress, (LPCVOID)&bBuffer, iSizeBuffer);

	delete[] bBuffer;
}