/etc/caldavd/augments.dtd is in calendarserver 9.1+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (c) 2009-2017 Apple Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!ELEMENT augments (record*) >
<!ELEMENT record (
uid,
server-id?,
enable-calendar?,
enable-addressbook?,
enable-login?,
auto-schedule-mode?,
auto-accept-group?
)>
<!ELEMENT uid (#PCDATA)>
<!ELEMENT server-id (#PCDATA)>
<!ELEMENT enable-calendar (#PCDATA)>
<!ELEMENT enable-addressbook (#PCDATA)>
<!ELEMENT enable-login (#PCDATA)>
<!ELEMENT auto-schedule-mode (#PCDATA)>
<!ELEMENT auto-accept-group (#PCDATA)>
|