Textractor_test/vnrhook/hijack/texthook.h

48 lines
1.2 KiB
C++

#pragma once
// texthook.h
// 8/24/2013 jichi
// Branch: IHF_DLL/IHF_CLIENT.h, rev 133
//
// 8/24/2013 TODO:
// - Clean up this file
// - Reduce global variables. Use namespaces or singleton classes instead.
#include "common.h"
#include "types.h"
extern int currentHook;
extern DWORD trigger;
// jichi 9/25/2013: This class will be used by NtMapViewOfSectionfor
// interprocedure communication, where constructor/destructor will NOT work.
class TextHook
{
bool InsertHookCode();
bool InsertReadCode();
DWORD UnsafeSend(DWORD dwDataBase, DWORD dwRetn);
int GetLength(DWORD base, DWORD in); // jichi 12/25/2013: Return 0 if failed
void RemoveHookCode();
void RemoveReadCode();
public:
HookParam hp;
char hookName[HOOK_NAME_SIZE];
BYTE trampoline[120];
HANDLE readerHandle;
bool InsertHook();
void InitHook(const HookParam &hp, LPCSTR name, DWORD set_flag);
DWORD Send(DWORD dwDataBase, DWORD dwRetn);
void ClearHook();
};
enum { MAX_HOOK = 300 };
enum { HOOK_SECTION_SIZE = MAX_HOOK * sizeof(TextHook) * 2, HOOK_BUFFER_SIZE = MAX_HOOK * sizeof(TextHook) };
extern TextHook *hookman;
extern bool running;
extern HANDLE hookPipe;
extern std::unique_ptr<WinMutex> sectionMutex;
// EOF