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