enum UnixPermissions {
  ftpUnixPermissionPublicExecute = 0x0001,
  ftpUnixPermissionPublicWrite = 0x0002,
  ftpUnixPermissionPublicRead = 0x0004,
  ftpUnixPermissionGroupExecute = 0x0008,
  ftpUnixPermissionGroupWrite = 0x0010,
  ftpUnixPermissionGroupRead = 0x0020,
  ftpUnixPermissionUserExecute = 0x0040,
  ftpUnixPermissionUserWrite = 0x0080,
  ftpUnixPermissionUserRead = 0x0100,
  ftpUnixPermissionSystemSticky = 0x0200,
  ftpUnixPermissionSystemSetGID = 0x0400,
  ftpUnixPermissionSystemSetUID = 0x0800
};