dropbear: improved run script so it can be extendable

overlay.d/pkgs/dropbear/D%sysconfdir_dropbear_run.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+# --- SDE-COPYRIGHT-NOTE-BEGIN ---
+# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
+#
+# Filename: target/mnemosyne/overlay.d/pkgs/dropbear/D%sysconfdir_dropbear_run.sh
+# Copyright (C) 2010 The OpenSDE Project
+#
+# More information can be found in the files COPYING and README.
+#
+# 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; version 2 of the License. A copy of the
+# GNU General Public License can be found in the file COPYING.
+# --- SDE-COPYRIGHT-NOTE-END ---
+
+exec 2>&1
+
+DROPBEAR_LISTEN=
+DROPBEAR_PASSWD=
+DROPBEAR_EXTRA_OPT=
+
+if [ -s /etc/conf/dropbear ]; then
+	. /etc/conf/dropbear
+fi
+
+dbopt="-F -E"
+for x in $DROPBEAR_LISTEN; do
+	case "$x" in
+	*:*)	dbopt="$dbopt -p $x" ;;
+	*)	dbopt="$dbopt -p $x:22" ;;
+	esac
+done
+[ "$DROPBEAR_PASSWD" != "no" ] || dbopt="$dbopt -s"
+
+exec D_sbindir/dropbear $dbopt $DROPBEAR_EXTRA_OPT