Add license header and description

diff --git a/__lagdetect.awk b/__lagdetect.awk
index 5c723f6663ae06db42828d8313ce574128b8e354..0c1889b4759a6a92bb2180ec13b160e7d5c6de4b 100644 (file)
--- a/__lagdetect.awk
+++ b/__lagdetect.awk
@@ -1,4 +1,23 @@
 #!/usr/bin/awk -f
+
+# Copyright (C)2022 Johannes Truschnigg (https://johannes.truschnigg.info/)
+#  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 3 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.  If not, see <https://www.gnu.org/licenses/>.
+
+# This is a POSIX AWK script that will adapt cake SQM bandwidth depending on
+# latency reported by fping(8). It is useless on its own, and should be started
+# by the accompanying shellscript wrapper found in the same directory.
+
 BEGIN {
   CONVFMT="%.3f"
   print "# INIT=" systime()