Add SPDX-License-Identifier headers

Add SPDX-License-Identifier headers to all substantial source files.
Collapse copyright years.  Add some Emacs configuration for files
where the copyright notice is at the end.  Add a test that every
file has SPDX-License-Identifier.

25 files changed, 37 insertions, 39 deletions

diff --git a/perl/t/data/acl-command b/perl/t/data/acl-command
index b7c3066..bdf106a 100755
--- a/perl/t/data/acl-command
+++ b/perl/t/data/acl-command
@@ -5,10 +5,9 @@
 # failure, or reports an error based on whether the second argument is
 # success, failure, or error.
 #
-# Written by Russ Allbery <eagle@eyrie.org>
 # Copyright 2016 Russ Allbery <eagle@eyrie.org>
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 set -e
 
diff --git a/perl/t/general/acl.t b/perl/t/general/acl.t
index 4de7493..c6e33f9 100755
--- a/perl/t/general/acl.t
+++ b/perl/t/general/acl.t
@@ -3,10 +3,10 @@
 # Tests for the wallet ACL API.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2007, 2008, 2014
+# Copyright 2007-2008, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/general/admin.t b/perl/t/general/admin.t
index 17671b6..a204558 100755
--- a/perl/t/general/admin.t
+++ b/perl/t/general/admin.t
@@ -3,10 +3,10 @@
 # Tests for wallet administrative interface.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2008, 2009, 2010, 2011, 2013, 2014
+# Copyright 2008-2011, 2013-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/general/config.t b/perl/t/general/config.t
index bc200de..a0848ba 100755
--- a/perl/t/general/config.t
+++ b/perl/t/general/config.t
@@ -6,7 +6,7 @@
 # Copyright 2008, 2010, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/general/init.t b/perl/t/general/init.t
index 58b9a4c..ddc4aa1 100755
--- a/perl/t/general/init.t
+++ b/perl/t/general/init.t
@@ -3,10 +3,10 @@
 # Tests for database initialization.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2007, 2008, 2014
+# Copyright 2007-2008, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/general/report.t b/perl/t/general/report.t
index e47cdc6..8b491f5 100755
--- a/perl/t/general/report.t
+++ b/perl/t/general/report.t
@@ -3,10 +3,10 @@
 # Tests for the wallet reporting interface.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2008, 2009, 2010, 2014
+# Copyright 2008-2010, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/general/server.t b/perl/t/general/server.t
index 8f4c16c..0794f15 100755
--- a/perl/t/general/server.t
+++ b/perl/t/general/server.t
@@ -3,10 +3,10 @@
 # Tests for the wallet server API.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2007, 2008, 2010, 2011, 2012, 2013, 2014
+# Copyright 2007-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/lib/Util.pm b/perl/t/lib/Util.pm
index 187e483..c583373 100644
--- a/perl/t/lib/Util.pm
+++ b/perl/t/lib/Util.pm
@@ -1,10 +1,10 @@
 # Utility class for wallet tests.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2007, 2008, 2014
+# Copyright 2007-2008, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 package Util;
 require 5.006;
diff --git a/perl/t/object/base.t b/perl/t/object/base.t
index 8fedd64..2126ebf 100755
--- a/perl/t/object/base.t
+++ b/perl/t/object/base.t
@@ -3,10 +3,10 @@
 # Tests for the basic object implementation.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2007, 2008, 2011, 2014
+# Copyright 2007-2008, 2011, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/duo-ldap.t b/perl/t/object/duo-ldap.t
index 8a00dbb..e2b5d5d 100644
--- a/perl/t/object/duo-ldap.t
+++ b/perl/t/object/duo-ldap.t
@@ -6,7 +6,7 @@
 # Copyright 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/duo-pam.t b/perl/t/object/duo-pam.t
index 047343e..f0c9e61 100644
--- a/perl/t/object/duo-pam.t
+++ b/perl/t/object/duo-pam.t
@@ -6,7 +6,7 @@
 # Copyright 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/duo-radius.t b/perl/t/object/duo-radius.t
index 55cbb9d..5532a68 100644
--- a/perl/t/object/duo-radius.t
+++ b/perl/t/object/duo-radius.t
@@ -6,7 +6,7 @@
 # Copyright 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/duo-rdp.t b/perl/t/object/duo-rdp.t
index 25060ac..52f0613 100644
--- a/perl/t/object/duo-rdp.t
+++ b/perl/t/object/duo-rdp.t
@@ -6,7 +6,7 @@
 # Copyright 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/duo.t b/perl/t/object/duo.t
index a975597..75b5834 100755
--- a/perl/t/object/duo.t
+++ b/perl/t/object/duo.t
@@ -6,7 +6,7 @@
 # Copyright 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/file.t b/perl/t/object/file.t
index b7f295a..80173cd 100755
--- a/perl/t/object/file.t
+++ b/perl/t/object/file.t
@@ -6,7 +6,7 @@
 # Copyright 2008, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/keytab.t b/perl/t/object/keytab.t
index 111b7d0..dfb96bd 100755
--- a/perl/t/object/keytab.t
+++ b/perl/t/object/keytab.t
@@ -3,10 +3,10 @@
 # Tests for the keytab object implementation.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2007, 2008, 2009, 2010, 2013, 2014
+# Copyright 2007-2010, 2013-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/password.t b/perl/t/object/password.t
index 306d82b..72a818c 100644
--- a/perl/t/object/password.t
+++ b/perl/t/object/password.t
@@ -7,7 +7,7 @@
 # Copyright 2015
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/object/wa-keyring.t b/perl/t/object/wa-keyring.t
index 4a3bd48..aa38e9c 100755
--- a/perl/t/object/wa-keyring.t
+++ b/perl/t/object/wa-keyring.t
@@ -3,10 +3,10 @@
 # Tests for the WebAuth keyring object implementation.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2013, 2014
+# Copyright 2013-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/policy/stanford.t b/perl/t/policy/stanford.t
index d2727c8..f7b2f16 100755
--- a/perl/t/policy/stanford.t
+++ b/perl/t/policy/stanford.t
@@ -7,10 +7,10 @@
 # behavior at Stanford.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2013, 2014
+# Copyright 2013-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use 5.008;
 use strict;
diff --git a/perl/t/util/kadmin.t b/perl/t/util/kadmin.t
index db94780..60a4933 100755
--- a/perl/t/util/kadmin.t
+++ b/perl/t/util/kadmin.t
@@ -3,10 +3,10 @@
 # Tests for the kadmin object implementation.
 #
 # Written by Jon Robertson <jonrober@stanford.edu>
-# Copyright 2009, 2010, 2012, 2013, 2014
+# Copyright 2009-2010, 2012-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/verifier/basic.t b/perl/t/verifier/basic.t
index be3c427..3ee71d6 100755
--- a/perl/t/verifier/basic.t
+++ b/perl/t/verifier/basic.t
@@ -3,10 +3,10 @@
 # Tests for the basic wallet ACL verifiers.
 #
 # Written by Russ Allbery <eagle@eyrie.org>
-# Copyright 2007, 2008, 2010, 2014
+# Copyright 2007-2008, 2010, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/verifier/external.t b/perl/t/verifier/external.t
index d1438de..2b725bd 100755
--- a/perl/t/verifier/external.t
+++ b/perl/t/verifier/external.t
@@ -2,10 +2,9 @@
 #
 # Tests for the external wallet ACL verifier.
 #
-# Written by Russ Allbery <eagle@eyrie.org>
 # Copyright 2016 Russ Allbery <eagle@eyrie.org>
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/verifier/ldap-attr.t b/perl/t/verifier/ldap-attr.t
index 3665edb..321822d 100755
--- a/perl/t/verifier/ldap-attr.t
+++ b/perl/t/verifier/ldap-attr.t
@@ -10,7 +10,7 @@
 # Copyright 2012-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/verifier/nested.t b/perl/t/verifier/nested.t
index ec7ce40..a975ea3 100755
--- a/perl/t/verifier/nested.t
+++ b/perl/t/verifier/nested.t
@@ -6,7 +6,7 @@
 # Copyright 2015
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;
diff --git a/perl/t/verifier/netdb.t b/perl/t/verifier/netdb.t
index 200fc9e..0f3e2d4 100755
--- a/perl/t/verifier/netdb.t
+++ b/perl/t/verifier/netdb.t
@@ -11,7 +11,7 @@
 # Copyright 2008, 2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;