MikelSV Core / interception

    void* intercept_it(void *func, void* mfunc){ // import table or any jmp.
        if(!func || !mfunc) return 0;
        void *ret;

        if(*(unsigned char*)func!=0xE9 /*|| *(unsigned char*)mfunc!=0xE9*/) return 0; // not jmp

#ifdef WIN32
        unsigned long op;
        VirtualProtect(func, 4, PAGE_READWRITE, &op); // PAGE_READWRITE
#endif
        unsigned int a=*(unsigned int*)((char*)func+1);
        void* call=(char*)func+a;
        unsigned int m=(char*)mfunc-(char*)func-5;

        *(unsigned int*)func = *(unsigned int*)func;
        *(unsigned int*)&ret = *(unsigned int*)((char*)func+1);
        //memcpy(&ret, ((char*)func+1), sizeof(void*));
        *(unsigned int*)((char*)func+1) = *(unsigned int*)&m;
        //memcpy(((char*)func+1), &m, sizeof(m));

        ret=(char*)ret+(unsigned int)func+5;

#ifdef WIN32
        VirtualProtect(func, 4, op, &op);
#endif
        return ret;
    }