}

// getModTime - get the file modification time of `path`
func getModTime(path string) (t time.Time, err error) {
	// Convert to absolute path
	absPath, err := filepath.Abs(path)
	if err != nil {
		return t, fmt.Errorf("Unable to get absolute path of %s. %w", path, err)
	}

	// Version is minio non-standard, we will use minio binary's
	// ModTime as release time.
	fi, err := Stat(absPath)

		}
		if p.Database == "" {
			return fmt.Errorf("database unspecified")
		}
	}

	if p.QueueDir != "" {
		if !filepath.IsAbs(p.QueueDir) {
			return errors.New("queueDir path should be absolute")
		}
	}

	if p.MaxOpenConnections < 0 {
		return errors.New("maxOpenConnections cannot be less than zero")
	}

	return nil
}

// PostgreSQLTarget - PostgreSQL target.

type PutObjReader struct {
	*hash.Reader              // actual data stream
	rawReader    *hash.Reader // original data stream
	sealMD5Fn    SealMD5CurrFn
}

// Size returns the absolute number of bytes the Reader
// will return during reading. It returns -1 for unlimited
// data.
func (p *PutObjReader) Size() int64 {
	return p.Reader.Size()
}

)

// HTTPRangeSpec represents a range specification as supported by S3 GET
// object request.
//
// Case 1: Not present -> represented by a nil RangeSpec
// Case 2: bytes=1-10 (absolute start and end offsets) -> RangeSpec{false, 1, 10}
// Case 3: bytes=10- (absolute start offset with end offset unspecified) -> RangeSpec{false, 10, -1}
// Case 4: bytes=-30 (suffix length specification) -> RangeSpec{true, -30, -1}
type HTTPRangeSpec struct {

	if dir == "" {
		if !dirSet {
			return nil, fmt.Errorf("missing option must be provided")
		}
		return nil, fmt.Errorf("provided option cannot be empty")
	}

	// Disallow relative paths, figure out absolute paths.
	dirAbs, err := filepath.Abs(dir)
	if err != nil {
		return nil, err
	}
	err = mkdirAllIgnorePerm(dirAbs)
	if err != nil {

		}
	}

	if r.Key == "" {
		return fmt.Errorf("empty key")
	}

	if r.QueueDir != "" {
		if !filepath.IsAbs(r.QueueDir) {
			return errors.New("queueDir path should be absolute")
		}
	}

	return nil
}

func (r RedisArgs) validateFormat(c redis.Conn) error {
	typeAvailable, err := redis.String(c.Do("TYPE", r.Key))
	if err != nil {
		return err
	}

		  --address '[fe80::da00:a6c8:e3ae:ddd7]:9000'`,
	)

	ErrInvalidEndpoint = newErrFn(
		"Invalid endpoint for single drive mode",
		"Please check the endpoint",
		`Single-Node modes requires absolute path without hostnames:
Examples:
   $ minio server /data/minio/ #Single Node Single Drive
   $ minio server /data-{1...4}/minio # Single Node Multi Drive`,
	)

	ErrUnsupportedBackend = newErrFn(

	} // Success.
	return nil
}

func getValidPath(path string) (string, error) {
	if path == "" {
		return path, errInvalidArgument
	}

	var err error
	// Disallow relative paths, figure out absolute paths.
	path, err = filepath.Abs(path)
	if err != nil {
		return path, err
	}

	fi, err := Lstat(path)
	if err != nil && !osIsNotExist(err) {
		return path, err
	}
	if osIsNotExist(err) {

		if isHostIP(arg) {
			return ep, fmt.Errorf("invalid URL endpoint format: missing scheme http or https")
		}
		absArg, err := filepath.Abs(arg)
		if err != nil {
			return Endpoint{}, fmt.Errorf("absolute path failed %s", err)
		}
		u = &url.URL{Path: path.Clean(absArg)}
		isLocal = true
	}

	return Endpoint{
		URL:     u,
		IsLocal: isLocal,
		PoolIdx: -1,
		SetIdx:  -1,
		DiskIdx: -1,

	if len(file) == 0 {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}

	file = filepath.ToSlash(file)
	// Reject attempts to traverse parent or absolute paths.
	if hasBadPathComponent(volume) || hasBadPathComponent(file) {
		writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrInvalidResourceName), r.URL)
		return
	}

	var publicKey *rsa.PublicKey