--- /dev/null
+#!/usr/bin/python
+###############################################################################
+# #
+# ddns - A dynamic DNS client for IPFire #
+# Copyright (C) 2012 IPFire development team #
+# #
+# This program is free software: you can redistribute it and/or modify #
+# it under the terms of the GNU General Public License as published by #
+# the Free Software Foundation, either version 3 of the License, or #
+# (at your option) any later version. #
+# #
+# This program is distributed in the hope that it will be useful, #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
+# GNU General Public License for more details. #
+# #
+# You should have received a copy of the GNU General Public License #
+# along with this program. If not, see <http://www.gnu.org/licenses/>. #
+# #
+###############################################################################
+
+class DDNSError(Exception):
+ pass
+
+
+class DDNSAbuseError(DDNSError):
+ """
+ Thrown when the server reports
+ abuse for this account.
+ """
+ pass
+
+
+class DDNSAuthenticationError(DDNSError):
+ """
+ Thrown when the server did not
+ accept the user credentials.
+ """
+ pass
+
+
+class DDNSInternalServerError(DDNSError):
+ """
+ Thrown when the remote server reported
+ an error on the provider site.
+ """
+ pass
+
+
+class DDNSRequestError(DDNSError):
+ """
+ Thrown when a request could
+ not be properly performed.
+ """
+ pass
+
+
+class DDNSUpdateError(DDNSError):
+ """
+ Thrown when an update could not be
+ properly performed.
+ """
+ pass