int i, len, dots;
            char[] data;

            i = dots = 0; /* quick IP address validation */
            len = hostname.length();
            data = hostname.toCharArray();
            while (i < len && Character.isDigit(data[i++])) {
                if (i == len && dots == 3) {
                    // probably an IP address
                    return true;

> **NOTE:** `{1...n}` shown have 3 dots! Using only 2 dots `{1..n}` will be interpreted by your shell and won't be passed to MinIO server, affecting the erasure coding order, which would impact performance and high availability. **Always use ellipses syntax `{1...n}` (3 dots!) for optimal erasure-code distribution**

### Expanding existing distributed setup

			return nil
		}
	}

	return err
}

// Return count entries at the directory dirPath and all entries
// if count is set to -1
func readDirWithOpts(dirPath string, opts readDirOpts) (entries []string, err error) {
	fd, err := openFileWithFD(dirPath, readMode, 0o666)
	if err != nil {
		if !osIsPermission(err) {
			return nil, osErrToFileErr(err)
		}

	return r.loadWithOpts(ctx, store, ObjectOptions{})
}

func (r *rebalanceMeta) loadWithOpts(ctx context.Context, store objectIO, opts ObjectOptions) error {
	data, _, err := readConfigWithMetadata(ctx, store, rebalMetaName, opts)
	if err != nil {
		return err
	}

	if len(data) == 0 {
		return nil
	}
	if len(data) <= 4 {
		return fmt.Errorf("rebalanceMeta: no data")
	}

	traceFn := globalLifecycleSys.trace(obj)
	opts := ObjectOptions{
		Expiration: ExpirationOptions{Expire: true},
	}

	if lcEvent.Action.DeleteVersioned() {
		opts.VersionID = obj.VersionID
	}

	opts.Versioned = globalBucketVersioningSys.PrefixEnabled(obj.Bucket, obj.Name)
	opts.VersionSuspended = globalBucketVersioningSys.PrefixSuspended(obj.Bucket, obj.Name)

		return nil, nil, err
	}

	pReader, err := NewPutObjReader(hr).WithEncryption(encHr, &oek)
	if err != nil {
		return nil, nil, err
	}
	opts := &ObjectOptions{
		UserDefined: metadata,
		MTime:       UTCNow(),
		MaxParity:   true,
	}

	return pReader, opts, nil
}

// Reload updates config by reloading remote tier config from config store.

 * of Android's private InetAddress#isNumeric API.
 *
 * This matches IPv6 addresses as a hex string containing at least one colon, and possibly
 * including dots after the first colon. It matches IPv4 addresses as strings containing only
 * decimal digits and dots. This pattern matches strings like "a:.23" and "54" that are neither IP
 * addresses nor hostnames; they will be verified as IP addresses (which is a more strict
 * verification).

	return
}

// Begin begins a transaction with any transaction options opts
func (db *DB) Begin(opts ...*sql.TxOptions) *DB {
	var (
		// clone statement
		tx  = db.getInstance().Session(&Session{Context: db.Statement.Context, NewDB: db.clone == 1})
		opt *sql.TxOptions
		err error
	)

	if len(opts) > 0 {
		opt = opts[0]
	}

	ctx := tx.Statement.Context
	if db.DefaultTransactionTimeout > 0 {

		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}
	opts := extractReplicateDiffOpts(r.Form)
	if opts.ARN != "" {
		tgt := globalBucketTargetSys.GetRemoteBucketTargetByArn(ctx, bucket, opts.ARN)
		if tgt.Empty() {
			writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErrWithErr(ErrInvalidRequest, fmt.Errorf("invalid arn : '%s'", opts.ARN)), r.URL)
			return
		}
	}

                                const TF_FunctionOptions* opts,
                                const char* description, TF_Status* status) {
  return TF_GraphToFunctionWithControlOutputs(
      fn_body, fn_name, append_hash_to_fn_name, num_opers, opers, ninputs,
      inputs, noutputs, outputs, output_names, 0, nullptr, nullptr, opts,
      description, status);
}