LunaHook-mirror/LunaHook/engine32/RRE.cpp
2024-02-07 20:59:24 +08:00

39 lines
1.2 KiB
C++

#include"RRE.h"
static void SpecialRunrunEngine(hook_stack* stack, HookParam *, uintptr_t *data, uintptr_t *split, size_t*len)
{
//CC_UNUSED(split);
DWORD eax = stack->eax, // *(DWORD *)(esp_base - 0x8),
edx = stack->edx; // *(DWORD *)(esp_base - 0x10);
DWORD addr = eax + edx; // eax + edx
*data = *(WORD *)(addr);
*len = 2;
}
bool InsertRREHook()
{
ULONG addr = MemDbg::findCallAddress((ULONG)::IsDBCSLeadByte, processStartAddress, processStopAddress);
if (!addr) {
ConsoleOutput("RRE: function call does not exist");
return false;
}
WORD sig = 0x51c3;
HookParam hp;
hp.address = addr;
hp.type = NO_CONTEXT|DATA_INDIRECT|USING_CHAR;
if ((*(WORD *)(addr-2) != sig)) {
hp.text_fun = SpecialRunrunEngine;
ConsoleOutput("INSERT Runrun#1");
return NewHook(hp, "RunrunEngine Old");
} else {
hp.offset=get_reg(regs::eax);
ConsoleOutput("INSERT Runrun#2");
return NewHook(hp, "RunrunEngine");
}
//ConsoleOutput("RunrunEngine, hook will only work with text speed set to slow or normal!");
//else ConsoleOutput("Unknown RunrunEngine engine");
}
bool RRE::attach_function() {
return InsertRREHook();
}