r5sdk/r5dev/client/cdll_engine_int.cpp
2022-04-19 00:00:45 +02:00

105 lines
2.8 KiB
C++

//=============================================================================
//
//
//=============================================================================
#include "core/stdafx.h"
/*****************************************************************************/
#include "tier1/cvar.h"
#include "tier0/commandline.h"
#include "tier1/IConVar.h"
#include "client/vengineclient_impl.h"
#include "client/cdll_engine_int.h"
#include "engine/net_chan.h"
#include "engine/cl_rcon.h"
#include "public/include/bansystem.h"
#include "vpc/keyvalues.h"
#include "gameui/IConsole.h"
/*****************************************************************************/
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CHLClient::FrameStageNotify(CHLClient* pHLClient, ClientFrameStage_t frameStage)
{
switch (frameStage)
{
case ClientFrameStage_t::FRAME_START: // FrameStageNotify gets called every frame by CEngine::Frame with the stage being FRAME_START. We can use this to check/set global variables.
{
break;
}
case ClientFrameStage_t::FRAME_NET_UPDATE_POSTDATAUPDATE_END:
{
gHLClient->PatchNetVarConVar();
break;
}
default:
{
break;
}
}
g_pIConsole->Think();
CHLClient_FrameStageNotify(pHLClient, frameStage);
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CHLClient::PatchNetVarConVar(void) const
{
#ifdef GAMEDLL_S3
static bool bASLR = true;
static bool bInit = false;
static void* pCVar = 0;
if (!bASLR && !bInit)
{
CHAR sConVarPtr[] = "\x72\x3a\x73\x76\x72\x75\x73\x7a\x7a\x03\x04";
PCHAR curr = sConVarPtr;
while (*curr)
{
*curr ^= 'B';
++curr;
}
stringstream ss;
ss << std::hex << string(sConVarPtr);
ss >> pCVar;
bInit = true;
}
else if (!bInit)
{
CMemory mCVar = g_mGameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\xF3\x0F\x11\x83\x8C\x21\x00\x00"), "xxxxxxxx");
pCVar = mCVar.RCast<void*>();
bInit = true;
}
if (*reinterpret_cast<uint8_t*>(pCVar) == 144)
{
uint8_t padding[] =
{
0x48, 0x8B, 0x45,
0x58, 0xC7, 0x00,
0x00, 0x00, 0x00,
0x00
};
void* pCallback = nullptr;
VirtualAlloc(pCallback, 10, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
memcpy(pCallback, reinterpret_cast<void*>(padding), 9);
reinterpret_cast<void(*)()>(pCallback)();
}
#endif // GAMEDLL_S3
}
///////////////////////////////////////////////////////////////////////////////
void CHLClient_Attach()
{
DetourAttach((LPVOID*)&CHLClient_FrameStageNotify, &CHLClient::FrameStageNotify);
}
void CHLClient_Detach()
{
DetourDetach((LPVOID*)&CHLClient_FrameStageNotify, &CHLClient::FrameStageNotify);
}