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#41 IAT Hooking for all game modules

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This commit is contained in:
FunkyFr3sh 2020-09-19 11:23:06 +02:00
parent f58bc7117f
commit 28b4965611
7 changed files with 102 additions and 3 deletions
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85
src/hook.c
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@ -31,6 +31,7 @@ ENABLEWINDOWPROC real_EnableWindow = EnableWindow;
CREATEWINDOWEXAPROC real_CreateWindowExA = CreateWindowExA;
DESTROYWINDOWPROC real_DestroyWindow = DestroyWindow;
GETDEVICECAPSPROC real_GetDeviceCaps = GetDeviceCaps;
LOADLIBRARYEXWPROC real_LoadLibraryExW = LoadLibraryExW;
void Hook_PatchIAT(HMODULE hMod, char *moduleName, char *functionName, PROC newFunction)
@ -102,6 +103,37 @@ void Hook_Create(char *moduleName, char *functionName, PROC newFunction, PROC *f
DetourAttach((PVOID *)function, (PVOID)newFunction);
DetourTransactionCommit();
}
if (HookingMethod == 3)
{
char gameExePath[MAX_PATH] = { 0 };
char gameDir[MAX_PATH] = { 0 };
if (GetModuleFileNameA(NULL, gameExePath, MAX_PATH))
{
_splitpath(gameExePath, NULL, gameDir, NULL, NULL);
char modPath[MAX_PATH] = { 0 };
char modDir[MAX_PATH] = { 0 };
HMODULE hMod = NULL;
while (hMod = DetourEnumerateModules(hMod))
{
if (hMod == DDrawModule)
continue;
if (GetModuleFileNameA(hMod, modPath, MAX_PATH))
{
_splitpath(modPath, NULL, modDir, NULL, NULL);
if (_strnicmp(gameDir, modDir, strlen(gameDir)) == 0)
{
Hook_PatchIAT(hMod, moduleName, functionName, newFunction);
}
}
}
}
}
#endif
if (HookingMethod == 1)
@ -121,6 +153,41 @@ void Hook_Revert(char *moduleName, char *functionName, PROC newFunction, PROC *f
DetourDetach((PVOID *)function, (PVOID)newFunction);
DetourTransactionCommit();
}
if (HookingMethod == 3)
{
char gameExePath[MAX_PATH] = { 0 };
char gameDir[MAX_PATH] = { 0 };
if (GetModuleFileNameA(NULL, gameExePath, MAX_PATH))
{
_splitpath(gameExePath, NULL, gameDir, NULL, NULL);
char modPath[MAX_PATH] = { 0 };
char modDir[MAX_PATH] = { 0 };
HMODULE hMod = NULL;
while (hMod = DetourEnumerateModules(hMod))
{
if (hMod == DDrawModule)
continue;
if (GetModuleFileNameA(hMod, modPath, MAX_PATH))
{
_splitpath(modPath, NULL, modDir, NULL, NULL);
if (_strnicmp(gameDir, modDir, strlen(gameDir)) == 0)
{
Hook_PatchIAT(
hMod,
moduleName,
functionName,
GetProcAddress(GetModuleHandle(moduleName), functionName));
}
}
}
}
}
#endif
if (HookingMethod == 1)
@ -141,8 +208,16 @@ void Hook_Revert(char *moduleName, char *functionName, PROC newFunction, PROC *f
void Hook_Init()
{
if (!Hook_Active)
if (!Hook_Active || HookingMethod == 3)
{
if (!Hook_Active && HookingMethod == 3)
{
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach((PVOID*)&real_LoadLibraryExW, (PVOID)fake_LoadLibraryExW);
DetourTransactionCommit();
}
Hook_Active = TRUE;
Hook_Create("user32.dll", "GetCursorPos", (PROC)fake_GetCursorPos, (PROC *)&real_GetCursorPos);
@ -175,6 +250,14 @@ void Hook_Exit()
{
Hook_Active = FALSE;
if (HookingMethod == 3)
{
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourDetach((PVOID*)&real_LoadLibraryExW, (PVOID)fake_LoadLibraryExW);
DetourTransactionCommit();
}
Hook_Revert("user32.dll", "GetCursorPos", (PROC)fake_GetCursorPos, (PROC *)&real_GetCursorPos);
Hook_Revert("user32.dll", "ClipCursor", (PROC)fake_ClipCursor, (PROC *)&real_ClipCursor);
Hook_Revert("user32.dll", "ShowCursor", (PROC)fake_ShowCursor, (PROC *)&real_ShowCursor);