rem: if (check_inverse(optarg, &invert)) optind++;
add: check_inverse(optarg, &invert, &optind, 0);
context: parse(int c, char **argv, int invert, unsigned int *flags,      const struct ipt_entry *entry,      unsigned int *nfcache,      struct ipt_entry_match **match){	struct ipt_pool_info *info =		(struct ipt_pool_info *)(*match)->data;	switch (c) {	case '1':		if (check_inverse(optarg, &invert)) optind++;		info->src = ip_pool_get_index(argv[optind-1]);		if (invert) info->flags |= IPT_POOL_INV_SRC;		*flags = 1;		break;	case '2':		if (check_inverse(optarg, &invert)) optind++;		info->dst = ip_pool_get_index(argv[optind-1]);		if (invert) info->flags |= IPT_POOL_INV_DST;		*flags = 1;		break;	default:		return 0;	}	return 1;}