rem: print_ip(&net->ip); DBG("/"); print_ip(&net->mask);
add: print_ip("", &net->ip, "/"); print_ip("", &net->mask, "");
context: void print_net(struct net* net){	if (net==0){		LOG(L_WARN, "ERROR: print net: null pointer\n");		return;	}	print_ip(&net->ip); DBG("/"); print_ip(&net->mask);}