[C++]gehookte Funktion nochmal hooken

void *SafeDetourFunc(BYTE *src, const BYTE *dst, const int len)
{
	BYTE *jmp;
	DWORD dwback;
	DWORD jumpto, newjump;
 
	VirtualProtect(src,len,PAGE_READWRITE,&dwback);
 
	if(src[0] == 0xE9)
	{
		jmp = (BYTE*)malloc(10);
		jumpto = (*(DWORD*)(src+1))+((DWORD)src)+5;
		newjump = (jumpto-(DWORD)(jmp+5));
		jmp[0] = 0xE9;
		*(DWORD*)(jmp+1) = newjump;
		jmp += 5;
		jmp[0] = 0xE9;
		*(DWORD*)(jmp+1) = (DWORD)(src-jmp);
	}
	else
	{
		jmp = (BYTE*)malloc(5+len);
		memcpy(jmp,src,len);
		jmp += len;
		jmp[0] = 0xE9;
		*(DWORD*)(jmp+1) = (DWORD)(src+len-jmp)-5;
	}
 
	src[0] = 0xE9;
	*(DWORD*)(src+1) = (DWORD)(dst - src) - 5;
 
	for(int i = 5; i < len; i++)
		src[i] = 0x90;
 
	VirtualProtect(src,len,dwback,&dwback);
 
	return (jmp-len);
}