//===================================================================================
uintptr_t CSignature::GetVstdSignature(const char *chPattern)
{
// we need to do this becuase (i assume that) under the hood, dlopen only
// loads up the sections that it needs into memory, meaning that we cannot
// get the string table from the module.
static int fd = open(sharedobj::vstdlib().path.c_str(), O_RDONLY);
static void *module = mmap(NULL, lseek(fd, 0, SEEK_END), PROT_READ, MAP_SHARED, fd, 0);
static link_map *moduleMap = sharedobj::vstdlib().lmap;
// static void *module = (void *)moduleMap->l_addr;
static Elf32_Shdr *textHeader = getSectionHeader(module, ".text");
static int textOffset = textHeader->sh_offset;
static int textSize = textHeader->sh_size;
// we need to remap the address that we got from the pattern search from our
// mapped file to the actual memory we do this by rebasing the address
// (subbing the mmapped one and adding the dlopened one.
uintptr_t patr = dwFindPattern(((uintptr_t) module) + textOffset, ((uintptr_t) module) + textOffset + textSize, chPattern);
if (!patr)
return NULL;
return patr - (uintptr_t)(module) + moduleMap->l_addr;
}
//===================================================================================
DWORD CSignature::GetEngineSignature(char* chPattern)
{
static HMODULE hmModule = GetModuleHandleSafe("engine.dll");
static PIMAGE_DOS_HEADER pDOSHeader = (PIMAGE_DOS_HEADER)hmModule;
static PIMAGE_NT_HEADERS pNTHeaders = (PIMAGE_NT_HEADERS)(((DWORD)hmModule) + pDOSHeader->e_lfanew);
return dwFindPattern(((DWORD)hmModule) + pNTHeaders->OptionalHeader.BaseOfCode, ((DWORD)hmModule) + pNTHeaders->OptionalHeader.SizeOfCode, chPattern);
}
int PrepareExtension()
{
if (preparedextension)
return 0;
preparedextension = true;
std::string init = InitializeSdk();
if (init != "")
{
MessageBoxA(NULL, init.c_str(), "!LAC ERROR!", MB_OK);
return 1;
}
DWORD executestringcmd = dwFindPattern((DWORD)GetModuleHandleA("engine.dll"), 0xFEADBEEF, (BYTE*)"\x55\x8B\xEC\x8B\x45\x08\x56\x8B\xF1\x85\xC0\x74\x22", "xxxxxxxxxxxxx");
if (!executestringcmd)
{
MessageBoxA(NULL, "didnt get stringcmd", "!LAC ERROR!", MB_OK);
Msg("!LAC ERROR! didnt get stringcmd");
return 1;
}
DWORD onquerycvarval = dwFindPattern((DWORD)GetModuleHandleA("engine.dll"), 0xFEADBEEF, (BYTE*)"\x55\x8B\xEC\x8B\x45\x08\x8B\x50\x10\x56", "xxxxxxxxxx");
if (!onquerycvarval)
{
MessageBoxA(NULL, "didnt get query cvar value", "!LAC ERROR!", MB_OK);
Msg("!LAC ERROR! didnt get query cvar value");
return 1;
}
ExecuteStringCmd = (OrigExecuteStringCmd)DetourCreate((BYTE*)executestringcmd, (BYTE*)hooked_ExecuteStringCmd, 6);
ProcessRespondCvarValue = (OrigProcessRespondCvarValue)DetourCreate((BYTE*)onquerycvarval, (BYTE*)hooked_ProcessRespondCvarValue, 6);
return 0;
}
void CDirect3DHook::Install()
{
if(!m_bHookInstalled)
{
HMODULE hModule = NULL;
char buffer[MAX_PATH];
// Getting path to system dir and to d3d8.dll
::GetSystemDirectory(buffer,MAX_PATH);
// Append dll name
strcat(buffer,"\\d3d9.dll");
LoadLibrary(buffer);
while( !hModule )
{
hModule = GetModuleHandleA(buffer);
Sleep(100);
}
DWORD* VTableStart = 0;
DWORD DevicePointer = dwFindPattern((DWORD)hModule, 0x128000,
(PBYTE)"\xC7\x06\x00\x00\x00\x00\x89\x86\x00\x00\x00\x00\x89\x86", "xx????xx????xx");
memcpy(&VTableStart, (void*)(DevicePointer+2), 4);
dwReset = (DWORD)VTableStart[16];
dwEndScene = (DWORD)VTableStart[42];
m_pReset = (Reset_t)DetourFunction((PBYTE)dwReset,(PBYTE)hkReset);
m_pEndScene = (EndScene_t)DetourFunction((PBYTE)dwEndScene,(PBYTE)hkEndScene);
CLogFile::Printf("Hooked 'Direct3D Reset and EndScene");
m_bHookInstalled = true;
}
}
