case xsftp.AcceptNetworkError:
		sftpLogOnceIf(context.Background(), err, "accept-limit-sftp")
	case xsftp.AcceptChannelError:
		sftpLogOnceIf(context.Background(), err, "accept-channel-sftp")
	case xsftp.SSHKeyExchangeError:
		sftpLogOnceIf(context.Background(), err, "key-exchange-sftp")
	default:
		sftpLogOnceIf(context.Background(), err, "unknown-error-sftp")
	}
}

		ctxt.certsDirSet = true
	case ctx.GlobalIsSet("certs-dir"):
		ctxt.CertsDir = ctx.GlobalString("certs-dir")
		ctxt.certsDirSet = true
	}

	ctxt.FTP = ctx.StringSlice("ftp")
	ctxt.SFTP = ctx.StringSlice("sftp")

	ctxt.Interface = ctx.String("interface")
	ctxt.UserTimeout = ctx.Duration("conn-user-timeout")
	ctxt.ConnReadDeadline = ctx.Duration("conn-read-deadline")

	Addr, ConsoleAddr         string
	ConfigDir, CertsDir       string
	configDirSet, certsDirSet bool
	Interface                 string

	RootUser, RootPwd string

	FTP  []string
	SFTP []string

	UserTimeout             time.Duration
	ConnReadDeadline        time.Duration
	ConnWriteDeadline       time.Duration
	ConnClientReadDeadline  time.Duration
	ConnClientWriteDeadline time.Duration

	}
}

// NewSFTPDriver initializes sftp.Handlers implementation of following interfaces
//
// - sftp.Fileread
// - sftp.Filewrite
// - sftp.Filelist
// - sftp.Filecmd
func NewSFTPDriver(perms *ssh.Permissions) sftp.Handlers {
	handler := &sftpDriver{endpoint: fmt.Sprintf("127.0.0.1:%s", globalMinioPort), permissions: perms}
	return sftp.Handlers{
		FileGet:  handler,
		FilePut:  handler,

	}

	if cf.Options.SFTP.Address != "" {
		ctxt.SFTP = append(ctxt.SFTP, fmt.Sprintf("address=%s", cf.Options.SFTP.Address))
	}
	if cf.Options.SFTP.SSHPrivateKey != "" {
		ctxt.SFTP = append(ctxt.SFTP, fmt.Sprintf("ssh-private-key=%s", cf.Options.SFTP.SSHPrivateKey))
	}
}

func mergeServerCtxtFromConfigFile(configFile string, ctxt *serverCtxt) error {

type Opts struct {
	FTP struct {
		Address          string `yaml:"address"`
		PassivePortRange string `yaml:"passive-port-range"`
	} `yaml:"ftp"`
	SFTP struct {
		Address       string `yaml:"address"`
		SSHPrivateKey string `yaml:"ssh-private-key"`
	} `yaml:"sftp"`
}

// ServerConfigVersion struct is used to extract the version
type ServerConfigVersion struct {
	Version string `yaml:"version"`
}

	logger.LogIf(ctx, "s3", err, errKind...)
}

func sftpLogOnceIf(ctx context.Context, err error, id string, errKind ...interface{}) {
	logger.LogOnceIf(ctx, "sftp", err, id, errKind...)
}

func shutdownLogIf(ctx context.Context, err error, errKind ...interface{}) {
	logger.LogIf(ctx, "shutdown", err, errKind...)
}