Textractor_test/vnrhook/hijack/texthook.h
2018-08-26 15:14:45 -04:00

51 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();
bool UnsafeInsertHookCode();
DWORD UnsafeSend(DWORD dwDataBase, DWORD dwRetn);
void RemoveHookCode();
void RemoveReadCode();
void SetHookName(LPCSTR name);
public:
HookParam hp;
LPSTR hook_name;
int name_length;
BYTE trampoline[120];
bool InsertHook();
void InitHook(const HookParam &hp, LPCSTR name = 0, WORD set_flag = 0);
DWORD Send(DWORD dwDataBase, DWORD dwRetn);
void ClearHook();
int GetLength(DWORD base, DWORD in); // jichi 12/25/2013: Return 0 if failed
};
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, hmMutex;
// EOF