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122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
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#ifndef COMMON_HOOK_H
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#define COMMON_HOOK_H
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#include <Windows.h>
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#include <cstdint>
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#include "detours.h" // Asegúrate de tener detours.lib en tu proyecto
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#include "Types.h"
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#include "Exceptions.h"
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namespace Hooks {
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enum class CallConvention
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{
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stdcall_t,
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cdecl_t,
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fastcall_t // Añadido fastcall por si interceptas funciones internas del engine
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};
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// Helper para definir la convención de llamada
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template <CallConvention cc, typename retn, typename ...args>
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struct convention;
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template <typename retn, typename ...args>
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struct convention<CallConvention::stdcall_t, retn, args...>
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{
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typedef retn (__stdcall *type)(args ...);
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};
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template <typename retn, typename ...args>
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struct convention<CallConvention::cdecl_t, retn, args...>
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{
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typedef retn (__cdecl *type)(args ...);
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};
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// Fallout 4 usa mucho fastcall (__rcall en x64)
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template <typename retn, typename ...args>
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struct convention<CallConvention::fastcall_t, retn, args...>
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{
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typedef retn (__fastcall *type)(args ...);
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};
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template <CallConvention cc, typename retn, typename ...args>
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class Hook
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{
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typedef typename convention<cc, retn, args...>::type type;
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uintptr_t orig_; // Usamos uintptr_t para compatibilidad x64
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type detour_;
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bool is_applied_;
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bool has_open_transaction_;
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void transaction_begin()
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{
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if (DetourTransactionBegin() != NO_ERROR)
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throw Exceptions::Core::Exceptions::DetourException("A pending transaction already exists");
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has_open_transaction_ = true;
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}
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void transaction_commit()
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{
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if (DetourTransactionCommit() != NO_ERROR)
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throw Exceptions::Core::Exceptions::DetourException("Error committing detour transaction");
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has_open_transaction_ = false;
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}
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static void update_thread(HANDLE hThread)
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{
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DetourUpdateThread(hThread);
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}
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public:
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Hook() : orig_(0), detour_(0), is_applied_(false), has_open_transaction_(false) {}
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~Hook()
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{
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if (has_open_transaction_) DetourTransactionAbort();
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remove();
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}
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// pFunc ahora acepta uintptr_t para que funcione con GameAddr::GetUIntPtr()
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void apply(uintptr_t pFunc, type detour)
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{
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if (is_applied_) return;
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detour_ = detour;
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orig_ = pFunc;
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transaction_begin();
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update_thread(GetCurrentThread());
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// Detours requiere un puntero al puntero de la función original
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DetourAttach(reinterpret_cast<void **>(&orig_), reinterpret_cast<void *>(detour_));
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transaction_commit();
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is_applied_ = true;
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}
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void remove()
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{
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if (!is_applied_) return;
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transaction_begin();
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update_thread(GetCurrentThread());
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DetourDetach(reinterpret_cast<void **>(&orig_), reinterpret_cast<void *>(detour_));
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transaction_commit();
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is_applied_ = false;
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}
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// Esta es la función que llamas desde tu lambda en main.cpp
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retn call_orig(args ... p)
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{
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return reinterpret_cast<type>(orig_)(p...);
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}
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uintptr_t get_orig() const { return orig_; }
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bool is_applied() const { return is_applied_; }
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};
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}
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#endif
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