18 files changed, 20 insertions, 151 deletions
diff --git a/tools/build-debian-package.sh b/tools/build-debian-package.sh
index 3c922c355..d614ba01d 100755
--- a/tools/build-debian-package.sh
+++ b/tools/build-debian-package.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: NONE
 #
 # Written by Daniil Baturin, 2018
 # Rewritten by Ondřej Surý, 2020
diff --git a/tools/checkpatch.pl b/tools/checkpatch.pl
index db6460f34..69eb0ef95 100755
--- a/tools/checkpatch.pl
+++ b/tools/checkpatch.pl
@@ -1,9 +1,9 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0-or-later
 # (c) 2001, Dave Jones. (the file handling bit)
 # (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
 # (c) 2007,2008, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite)
 # (c) 2008-2010 Andy Whitcroft <apw@canonical.com>
-# Licensed under the terms of the GNU GPL License version 2
 
 use strict;
 use warnings;
diff --git a/tools/fixup-deprecated.py b/tools/fixup-deprecated.py
index 57f9df906..ad3ae54ab 100755
--- a/tools/fixup-deprecated.py
+++ b/tools/fixup-deprecated.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+# SPDX-License-Identifier: NONE
 #
 # Script used to replace deprecated quagga/frr mactors/types/etc.
 #
diff --git a/tools/frr-llvm-cg.c b/tools/frr-llvm-cg.c
index 8ce754fec..51e8fb7b7 100644
--- a/tools/frr-llvm-cg.c
+++ b/tools/frr-llvm-cg.c
@@ -1,28 +1,4 @@
-// This is free and unencumbered software released into the public domain.
-//
-// Anyone is free to copy, modify, publish, use, compile, sell, or
-// distribute this software, either in source code form or as a compiled
-// binary, for any purpose, commercial or non-commercial, and by any
-// means.
-//
-// In jurisdictions that recognize copyright laws, the author or authors
-// of this software dedicate any and all copyright interest in the
-// software to the public domain. We make this dedication for the benefit
-// of the public at large and to the detriment of our heirs and
-// successors. We intend this dedication to be an overt act of
-// relinquishment in perpetuity of all present and future rights to this
-// software under copyright law.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-// OTHER DEALINGS IN THE SOFTWARE.
-//
-// For more information, please refer to <http://unlicense.org/>
-
+// SPDX-License-Identifier: Unlicense
 /* based on example code: https://github.com/sheredom/llvm_bc_parsing_example
  * which came under the above (un-)license.  does not depend on any FRR
  * pieces, so no reason to change the license.
diff --git a/tools/frr-llvm-debuginfo.cpp b/tools/frr-llvm-debuginfo.cpp
index ed3ad956b..16ad18bed 100644
--- a/tools/frr-llvm-debuginfo.cpp
+++ b/tools/frr-llvm-debuginfo.cpp
@@ -1,27 +1,4 @@
-// This is free and unencumbered software released into the public domain.
-//
-// Anyone is free to copy, modify, publish, use, compile, sell, or
-// distribute this software, either in source code form or as a compiled
-// binary, for any purpose, commercial or non-commercial, and by any
-// means.
-//
-// In jurisdictions that recognize copyright laws, the author or authors
-// of this software dedicate any and all copyright interest in the
-// software to the public domain. We make this dedication for the benefit
-// of the public at large and to the detriment of our heirs and
-// successors. We intend this dedication to be an overt act of
-// relinquishment in perpetuity of all present and future rights to this
-// software under copyright law.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-// OTHER DEALINGS IN THE SOFTWARE.
-//
-// For more information, please refer to <http://unlicense.org/>
+// SPDX-License-Identifier: Unlicense
 
 #include <llvm-c/BitReader.h>
 #include <llvm-c/BitWriter.h>
diff --git a/tools/frr-llvm-debuginfo.h b/tools/frr-llvm-debuginfo.h
index fca4bc1f9..4d2985cf7 100644
--- a/tools/frr-llvm-debuginfo.h
+++ b/tools/frr-llvm-debuginfo.h
@@ -1,27 +1,4 @@
-// This is free and unencumbered software released into the public domain.
-//
-// Anyone is free to copy, modify, publish, use, compile, sell, or
-// distribute this software, either in source code form or as a compiled
-// binary, for any purpose, commercial or non-commercial, and by any
-// means.
-//
-// In jurisdictions that recognize copyright laws, the author or authors
-// of this software dedicate any and all copyright interest in the
-// software to the public domain. We make this dedication for the benefit
-// of the public at large and to the detriment of our heirs and
-// successors. We intend this dedication to be an overt act of
-// relinquishment in perpetuity of all present and future rights to this
-// software under copyright law.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-// OTHER DEALINGS IN THE SOFTWARE.
-//
-// For more information, please refer to <http://unlicense.org/>
+// SPDX-License-Identifier: Unlicense
 
 #ifndef _FRR_LLVM_DEBUGINFO_H
 #define _FRR_LLVM_DEBUGINFO_H
diff --git a/tools/frr.vim b/tools/frr.vim
index 7cc248f4c..19ac3fc99 100644
--- a/tools/frr.vim
+++ b/tools/frr.vim
@@ -1,3 +1,4 @@
+" SPDX-License-Identifier: NONE
 " settings & syntax hilighting for FRR codebase
 " 2019 by David Lamparter, placed in public domain
 
diff --git a/tools/frr_babeltrace.py b/tools/frr_babeltrace.py
index 27d830a11..4d974ad35 100755
--- a/tools/frr_babeltrace.py
+++ b/tools/frr_babeltrace.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-or-later
 """
 Usage: frr_babeltrace.py trace_path
 
@@ -9,20 +10,6 @@ that pretty printing.
 
 Copyright (C) 2021  NVIDIA Corporation
 Anuradha Karuppiah
-
-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 2 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; see the file COPYING; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 """
 
 import ipaddress
diff --git a/tools/gcc-plugins/frr-format.c b/tools/gcc-plugins/frr-format.c
index 0a24b091a..2240a171b 100644
--- a/tools/gcc-plugins/frr-format.c
+++ b/tools/gcc-plugins/frr-format.c
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
 /* Check calls to formatted I/O functions (-Wformat).
    Copyright (C) 1992-2019 Free Software Foundation, Inc.
 
    Extended for FRR's printfrr() with Linux kernel style extensions
    Copyright (C) 2019-2020  David Lamparter, for NetDEF, Inc.
-
-This file is part of GCC.
-
-GCC 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.
-
-GCC 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 GCC; see the file COPYING.GPLv3.  If not see
-<http://www.gnu.org/licenses/>.  */
+ */
 
 #include "gcc-common.h"
 
diff --git a/tools/gcc-plugins/frr-format.h b/tools/gcc-plugins/frr-format.h
index 599dbc56f..373ef0724 100644
--- a/tools/gcc-plugins/frr-format.h
+++ b/tools/gcc-plugins/frr-format.h
@@ -1,21 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
 /* Check calls to formatted I/O functions (-Wformat).
    Copyright (C) 1992-2018 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC 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.
-
-GCC 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 GCC; see the file COPYING3.  If not see
-<http://www.gnu.org/licenses/>.  */
+ */
 
 #ifndef GCC_C_FORMAT_H
 #define GCC_C_FORMAT_H
diff --git a/tools/indent.py b/tools/indent.py
index 61a0fd445..fe9eb7c25 100755
--- a/tools/indent.py
+++ b/tools/indent.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
+# SPDX-License-Identifier: NONE
 # 2017 by David Lamparter, placed in public domain
 
 import sys, re, subprocess, os
diff --git a/tools/nhrpd-event-handler.sh b/tools/nhrpd-event-handler.sh
index 5dce43fe8..e7eaf46f6 100755
--- a/tools/nhrpd-event-handler.sh
+++ b/tools/nhrpd-event-handler.sh
@@ -1,22 +1,9 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
 
 # Author: Joe Maimon
 # Released to public domain
 #
-# 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 2 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; see the file COPYING; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-#
 
 PROGNAME=`basename $0`
 VERSION="0.0.6"
diff --git a/tools/render_md.py b/tools/render_md.py
index 7636496b6..80e26f341 100644
--- a/tools/render_md.py
+++ b/tools/render_md.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: NONE
 # written 2016 by David Lamparter, placed in Public Domain.
 import sys, markdown
 
diff --git a/tools/start-stop-daemon.c b/tools/start-stop-daemon.c
index e196a372e..9f566bd1e 100644
--- a/tools/start-stop-daemon.c
+++ b/tools/start-stop-daemon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: NONE
 /*
  * A rewrite of the original Debian's start-stop-daemon Perl script
  * in C (faster - it is executed many times during system startup).
diff --git a/tools/stringmangle.py b/tools/stringmangle.py
index 1c75c86a0..29fcb86ea 100644
--- a/tools/stringmangle.py
+++ b/tools/stringmangle.py
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: NONE
 # 2020 by David Lamparter, placed in the public domain.
 
 import sys
diff --git a/tools/symalyzer.html b/tools/symalyzer.html
index eefeee3b0..b136ce590 100644
--- a/tools/symalyzer.html
+++ b/tools/symalyzer.html
@@ -1,5 +1,6 @@
 <html>
 <!--
+  - SPDX-License-Identifier: NONE
   - 2019 by David Lamparter, placed in public domain
   -->
   <head>
diff --git a/tools/symalyzer.py b/tools/symalyzer.py
index ce0bfde0a..7d37a1a31 100755
--- a/tools/symalyzer.py
+++ b/tools/symalyzer.py
@@ -1,4 +1,5 @@
 #!/usr/bin/python3
+# SPDX-License-Identifier: NONE
 #
 # 2019 by David Lamparter, placed in public domain
 #
diff --git a/tools/zc.pl b/tools/zc.pl
index 5307fa387..77af50085 100755
--- a/tools/zc.pl
+++ b/tools/zc.pl
@@ -1,24 +1,8 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0-or-later
 ##
 ## Zebra interactive console
 ## Copyright (C) 2000 Vladimir B. Grebenschikov <vova@express.ru>
-##
-## This file is part of GNU Zebra.
-##
-## GNU Zebra 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 2, or (at your option) any
-## later version.
-##
-## GNU Zebra 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 GNU Zebra; see the file COPYING.  If not, write to the
-## Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-## Boston, MA 02111-1307, USA.
 
 use Net::Telnet ();
 use Getopt::Std;