//File: antidebug_demoDoc.cpp
//Antidebug LIB Demo Code 2: CUSTOM FUNCTION TEST
#ifdef _ANTIDEBUG
//Explanation:custom_function is the name of custom function.
//The custom_function.h head file is generated by the custom_function_demo Project.
#include "..\\antidebug_demo\\custom_function_demo\\custom_function.h"
#define _founc(x) custom_function_##x##_code
#define _founc_len(x) custom_function_##x##_code_LEN
unsigned char* p_custom_function;
//1: Load custom function.
//
First assemble cryptograph of custom function into one buffer,
// then invoke GJ_load_custom_function_demo(BYTE* custom_function_code,int custom_function_length).
void Load_custom_function()
{
int code_len=custom_function_CODE_LEN;
unsigned char* pcode=(unsigned char*)malloc(code_len*sizeof(unsigned char));
if(pcode==NULL)
{
#ifdef _DEBUG
AfxMessageBox("Memory used up!");
#endif
return;
}
GJ_ENCRYPT_CODE_WITH_LIC_START //$$$$$$$$$$$$$$$$$$$$$$$$$$$ ENCRYPTION MACRO START
int p;
int hp=0;
for(int k=1;k<=custom_function_ARRAY_NUM;k++){
switch (k){
//The number of case equal to custom_function_ARRAY_NUM defined in custom_function.h.
case 1:
for(p=0;p<_founc_len(00001);p++) pcode[hp+p]=_founc(00001)[p];
hp=hp+p;
break;
/*
case 2:
for(p=0;p<_founc_len(00002);p++) pcode[hp+p]=_founc(00002)[p];
hp=hp+p;
break;
case 3:
for(p=0;p<_founc_len(00003);p++) pcode[hp+p]=_founc(00003)[p];
hp=hp+p;
break;
case 4:
for(p=0;p<_founc_len(00004);p++) pcode[hp+p]=_founc(00004)[p];
hp=hp+p;
break;
*/
default:
break;
}
}
#ifdef _TRIAL_VERSION
p_custom_function=GJ_load_custom_function_demo(pcode,code_len);
#else
p_custom_function=GJ_load_custom_function(pcode,code_len);
#endif
free(pcode);
GJ_ENCRYPT_CODE_WITH_LIC_END //$$$$$$$$$$$$$$$$$$$$$$$$$$$ ENCRYPTION MACRO END
}
//2:Execute the custom function.
void Run_custom_function()
{
GJ_ENCRYPT_CODE_WITH_LIC_START //$$$$$$$$$$$$$$$$$$$$$$$$$$$ ENCRYPTION MACRO START
int x=1;
int y=2;
char str_a[]=" HELLO CUSTOM_FOUNCTION ! ";
char str_b[]=" Hello Custom_function ! ";
void* (__cdecl *_memcpy )( void *dest, const void *src, size_t count );
int (__cdecl *_sprintf )( char *buffer, const char *format, ... );
void* (__cdecl *_malloc )( size_t size );
void (__cdecl *_free )( void *memblock );
size_t (__cdecl *_strlen )( const char *string );
int (__stdcall* _MessageBox)(HWND hWnd, LPCTSTR lpText, LPCTSTR lpCaption, UINT uType);
_memcpy=memcpy;
_sprintf=sprintf;
_malloc=malloc;
_free=free;
_strlen=strlen;
_MessageBox=MessageBox;
void ( __stdcall *_custom_function)( int x,
int y,
char* str_a,
char* str_b,
void* (__cdecl *_memcpy )( void *dest, const void *src, size_t count ),
int (__cdecl *_sprintf )( char *buffer, const char *format, ... ),
void* (__cdecl *_malloc )( size_t size ),
void (__cdecl *_free )( void *memblock ),
size_t (__cdecl *_strlen )( const char *string ),
int (__stdcall* _MessageBox)(HWND hWnd, LPCTSTR lpText, LPCTSTR lpCaption, UINT uType)
);
_custom_function=(void ( __stdcall *)(int x,
int y,
char* str_a,
char* str_b,
void* (__cdecl *_memcpy )( void *dest, const void *src, size_t count ),
int (__cdecl *_sprintf )( char *buffer, const char *format, ... ),
void* (__cdecl *_malloc )( size_t size ),
void (__cdecl *_free )( void *memblock ),
size_t (__cdecl *_strlen )( const char *string ),
int (__stdcall* _MessageBox)(HWND hWnd, LPCTSTR lpText, LPCTSTR lpCaption, UINT uType)
)) p_custom_function;
_custom_function( x,
y,
str_a,
str_b,
_memcpy,
_sprintf,
_malloc,
_free,
_strlen,
_MessageBox
);
GJ_ENCRYPT_CODE_WITH_LIC_END //$$$$$$$$$$$$$$$$$$$$$$$$$$$ ENCRYPTION MACRO END
}
//3:Unload the custom function.
void Free_custom_function()
{
#ifdef _TRIAL_VERSION
GJ_free_custom_function_demo(p_custom_function,custom_function_CODE_LEN);
#else
GJ_free_custom_function(p_custom_function,custom_function_CODE_LEN);
#endif
}
#endif
void CAntidebug_demoDoc::OnCustomFunctionTest() //no shared function
{
// TODO: Add your command handler code here
#ifdef _ANTIDEBUG
if(AntiDebug_Reg_OK)
{
//GJ_ENCRYPT_CODE_WITH_LIC_START //$$$$$$$$$$$$$$$$$$$$$$$$$$$ ENCRYPTION MACRO START
//NOTE: Don't use ENCRYPTION MACRO here,because MACRO NESTING will occur !
// If you do use it,the effect will be similar to the MACRO GJ_ONCE_CODE.This code will be executed only once.
Load_custom_function(); //Load
Run_custom_function(); //Execute
Free_custom_function(); //Unload
//GJ_ENCRYPT_CODE_WITH_LIC_END //$$$$$$$$$$$$$$$$$$$$$$$$$$$ ENCRYPTION MACRO END
}
else
{
AfxMessageBox("Only registered user can use this function !");
}
#endif
}
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