23 files changed, 115 insertions, 230 deletions

diff --git a/src/nat/gnunet-helper-nat-client-windows.c b/src/nat/gnunet-helper-nat-client-windows.c
index 622f8c961..4d641e5f1 100644
--- a/src/nat/gnunet-helper-nat-client-windows.c
+++ b/src/nat/gnunet-helper-nat-client-windows.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2010 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-helper-nat-client.c b/src/nat/gnunet-helper-nat-client.c
index 359e529b0..839c9c175 100644
--- a/src/nat/gnunet-helper-nat-client.c
+++ b/src/nat/gnunet-helper-nat-client.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2010 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-helper-nat-server-windows.c b/src/nat/gnunet-helper-nat-server-windows.c
index 09bd02538..53f4ed6de 100644
--- a/src/nat/gnunet-helper-nat-server-windows.c
+++ b/src/nat/gnunet-helper-nat-server-windows.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2010 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-helper-nat-server.c b/src/nat/gnunet-helper-nat-server.c
index b8f499b4d..2978261e4 100644
--- a/src/nat/gnunet-helper-nat-server.c
+++ b/src/nat/gnunet-helper-nat-server.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2010 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-nat.c b/src/nat/gnunet-nat.c
index 72f343627..60c1c5651 100644
--- a/src/nat/gnunet-nat.c
+++ b/src/nat/gnunet-nat.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2015, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-service-nat.c b/src/nat/gnunet-service-nat.c
index 21089890d..43c1740c3 100644
--- a/src/nat/gnunet-service-nat.c
+++ b/src/nat/gnunet-service-nat.c
@@ -2,20 +2,15 @@
   This file is part of GNUnet.
   Copyright (C) 2016, 2017 GNUnet e.V.
 
-  GNUnet 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, or (at your
-  option) any later version.
+  GNUnet 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.
 
   GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA 02110-1301, USA.
+  Affero General Public License for more details.
  */
 
 /**
diff --git a/src/nat/gnunet-service-nat.h b/src/nat/gnunet-service-nat.h
index 96eb9f78b..96cda80ca 100644
--- a/src/nat/gnunet-service-nat.h
+++ b/src/nat/gnunet-service-nat.h
@@ -2,20 +2,15 @@
   This file is part of GNUnet.
   Copyright (C) 2016, 2017 GNUnet e.V.
 
-  GNUnet 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, or (at your
-  option) any later version.
+  GNUnet 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.
 
   GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA 02110-1301, USA.
+  Affero General Public License for more details.
  */
 
 /**
diff --git a/src/nat/gnunet-service-nat_externalip.c b/src/nat/gnunet-service-nat_externalip.c
index f79ff4070..2c5494d5e 100644
--- a/src/nat/gnunet-service-nat_externalip.c
+++ b/src/nat/gnunet-service-nat_externalip.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2015, 2016, 2017 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 /**
  * Code to figure out what our external IPv4 address(es) might
diff --git a/src/nat/gnunet-service-nat_externalip.h b/src/nat/gnunet-service-nat_externalip.h
index 31910555d..211856d70 100644
--- a/src/nat/gnunet-service-nat_externalip.h
+++ b/src/nat/gnunet-service-nat_externalip.h
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2015, 2016, 2017 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 /**
  * Code to figure out what our external IPv4 address(es) might
diff --git a/src/nat/gnunet-service-nat_helper.c b/src/nat/gnunet-service-nat_helper.c
index de6531fa8..fe591b63f 100644
--- a/src/nat/gnunet-service-nat_helper.c
+++ b/src/nat/gnunet-service-nat_helper.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2010, 2011, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-service-nat_helper.h b/src/nat/gnunet-service-nat_helper.h
index 026526b05..f5e129def 100644
--- a/src/nat/gnunet-service-nat_helper.h
+++ b/src/nat/gnunet-service-nat_helper.h
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2010, 2011, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-service-nat_mini.c b/src/nat/gnunet-service-nat_mini.c
index 8f1229be1..10bebaa7a 100644
--- a/src/nat/gnunet-service-nat_mini.c
+++ b/src/nat/gnunet-service-nat_mini.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2011-2014, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-service-nat_mini.h b/src/nat/gnunet-service-nat_mini.h
index 8a7af9bf1..341954c8b 100644
--- a/src/nat/gnunet-service-nat_mini.h
+++ b/src/nat/gnunet-service-nat_mini.h
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2011-2014, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/gnunet-service-nat_stun.c b/src/nat/gnunet-service-nat_stun.c
index 6f3ea10eb..26acf7151 100644
--- a/src/nat/gnunet-service-nat_stun.c
+++ b/src/nat/gnunet-service-nat_stun.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2015, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 /**
  * This code provides some support for doing STUN transactions.  We
diff --git a/src/nat/gnunet-service-nat_stun.h b/src/nat/gnunet-service-nat_stun.h
index 3d7e18f53..070a0dab8 100644
--- a/src/nat/gnunet-service-nat_stun.h
+++ b/src/nat/gnunet-service-nat_stun.h
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2015, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 /**
  * This code provides some support for doing STUN transactions.  We
diff --git a/src/nat/nat.h b/src/nat/nat.h
index d34900bd1..89832cc2b 100644
--- a/src/nat/nat.h
+++ b/src/nat/nat.h
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2011, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/nat_api.c b/src/nat/nat_api.c
index 69612584e..339b7c038 100644
--- a/src/nat/nat_api.c
+++ b/src/nat/nat_api.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2007-2017 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/nat_api_stun.c b/src/nat/nat_api_stun.c
index b1309fb53..3697d9341 100644
--- a/src/nat/nat_api_stun.c
+++ b/src/nat/nat_api_stun.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2015, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 /**
  * This code provides some support for doing STUN transactions.
diff --git a/src/nat/nat_stun.h b/src/nat/nat_stun.h
index 8d1c2720f..5fa160ce6 100644
--- a/src/nat/nat_stun.h
+++ b/src/nat/nat_stun.h
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2015, 2016 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 /**
  * Message types for STUN server resolution
diff --git a/src/nat/test_nat.c b/src/nat/test_nat.c
index 2e14a1ffa..8afee1e78 100644
--- a/src/nat/test_nat.c
+++ b/src/nat/test_nat.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2011 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/test_nat_mini.c b/src/nat/test_nat_mini.c
index d6ab2a321..047348dd5 100644
--- a/src/nat/test_nat_mini.c
+++ b/src/nat/test_nat_mini.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2011 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**
diff --git a/src/nat/test_nat_test.c b/src/nat/test_nat_test.c
index 402671bd2..be226afd2 100644
--- a/src/nat/test_nat_test.c
+++ b/src/nat/test_nat_test.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2011, 2014 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 /**
  * @file nat/test_nat_test.c
diff --git a/src/nat/test_stun.c b/src/nat/test_stun.c
index 9d4792cd6..d2b768569 100644
--- a/src/nat/test_stun.c
+++ b/src/nat/test_stun.c
@@ -2,20 +2,15 @@
      This file is part of GNUnet.
      Copyright (C) 2009, 2015 GNUnet e.V.
 
-     GNUnet 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, or (at your
-     option) any later version.
+     GNUnet 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.
 
      GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
 */
 
 /**