Revert "Fix publish version"

[hippotat.git] / debian / copyright

diff --git a/debian/copyright b/debian/copyright
index 9567297f76518351c4a04d6990a2c1be04d6fb4c..1ca4aecf084365bec165db3df632fe992ab30f59 100644 (file)
--- a/debian/copyright
+++ b/debian/copyright
@@ -22,3 +22,59 @@ The client and server are:
 
 On a Debian system, the GNU General Public License v3 can be found in
 /usr/share/common-licenses/GPL-3
+
+
+Formalities
+-----------
+
+The licence is generally indicated in each file with an SPDX
+delcaration; as is conventional, this should be read as a licence
+grant.
+
+Contributions to Hippotat are accepted based on the git commit
+Signed-off-by convention, by which the contributors' certify their
+contributions according to the Developer Certificate of Origin version
+1.1 - see the file DEVELOPER-CERTIFICATE.
+
+If you create a new file please be sure to add an appropriate licence
+header, probably something like this:
+// Copyright 2017-2022 Ian Jackson and contributors to Hippotat
+// SPDX-License-Identifier: AGPL-3.0-or-later
+// There is NO WARRANTY.
+
+
+OpenSSL Licence Exception
+-------------------------
+
+Additional permission under GNU GPL version 3 section 7
+[LicenseRef-Hippotat-OpenSSL-Exception]:
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with the OpenSSL
+    Library (or with modified versions of OpenSSL that use the same
+    license as OpenSSL 1.1), and distribute linked combinations
+    including the two.
+
+    BUT this does NOT apply to version 3.0 or any later version of the
+    OpenSSL library (nor to any modified versions thereof).  (We make
+    this restriction because the exception is not needed with OpenSSL 3.)
+
+    FURTHERMORE to take advantage of this exception you must obey the
+    GNU Lesser General Public License (version 3, or, at your option,
+    any later version) in all respects for all of the code used other
+    than OpenSSL.
+
+This additional permission is indicated in the source code with
+the following SPDX licence declaration:
+    SPDX-License-Identifier: GPL-3.0-or-later WITH LicenseRef-Hippotat-OpenSSL-Exception
+(which is roughly but not exactly in accordance with the SPDX spec.)
+
+If you modify a file, you may extend this exception to your version of
+the file, but you are not obligated to do so. If you do not wish to do
+so, delete the exception statement from your version, changing it to:
+    SPDX-License-Identifier: GPL-3.0-or-later
+
+The authors of Hippotat will probably withdrawn this exception in a
+future versions of Hippotat, when OpenSSL 3.0 (which has a
+GPLv3+-compatible licence) has become sufficiently widespread.  But
+that will not affect already-released versions of hippotat.