code: public void setPermissions(UnsignedInteger32 permissions) {
  		this.permissions = permissions;
  
  		// Set the flag
  		if (permissions != null) {
  			flags |= SSH_FILEXFER_ATTR_PERMISSIONS;
  		} else {
  			flags ^= SSH_FILEXFER_ATTR_PERMISSIONS;
  		}
  	}
docs: Set the permissions of the file. This value should be a valid mask of the
  permissions flags defined within this class.