rem: print_realm(((struct ipt_realm_info *)match->data)->id, ((struct ipt_realm_info *)match->data)->mask, ((struct ipt_realm_info *)match->data)->invert, 0);
add: print_realm(ri->id, ri->mask);
context: save(const struct ipt_ip *ip, const struct ipt_entry_match *match){	printf("--realm ");	print_realm(((struct ipt_realm_info *)match->data)->id,		   ((struct ipt_realm_info *)match->data)->mask,		   ((struct ipt_realm_info *)match->data)->invert, 0);}