rem: printf("--string "); print_string(((struct ipt_string_info *)match->data)->string, ((struct ipt_string_info *)match->data)->invert, 0);
add: const struct ipt_string_info *info = (const struct ipt_string_info*) match->data;  printf("--string %s%s ", (info->invert) ? "! ", "", info->string);
context: save(const struct ipt_ip *ip, const struct ipt_entry_match *match){	printf("--string ");	print_string(((struct ipt_string_info *)match->data)->string,		  ((struct ipt_string_info *)match->data)->invert, 0);}