From 3efd1b309686a55c8d394afa316bb5149c00435c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Date: Fri, 10 Sep 2021 02:23:04 +0200
Subject: Adding ddns-client program.

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
---
 ddns-client/bin/ddns-client | 91 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100755 ddns-client/bin/ddns-client

diff --git a/ddns-client/bin/ddns-client b/ddns-client/bin/ddns-client
new file mode 100755
index 0000000..d98e70b
--- /dev/null
+++ b/ddns-client/bin/ddns-client
@@ -0,0 +1,91 @@
+#!/bin/sh
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# 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/>.
+
+set -e
+
+PROJECT="open-infrastructure"
+SOFTWARE="network-tools"
+PROGRAM="ddns-client"
+
+HOOKS="/etc/${SOFTWARE}/hooks"
+
+# Parameter
+PARAMETER="${1}"
+
+if [ -z "${PARAMETER}" ]
+then
+	echo "Usage: ${PROGRAM} COMMAND [OPTIONS]" >&2
+	echo "Usage: ${PROGRAM} COMMAND1,COMMAND2,... [COMMON_OPTIONS]" >&2
+	echo
+	echo "See ${PROGRAM}(1) and ${SOFTWARE}(7) for more information."
+
+	exit 1
+fi
+
+# Command
+COMMANDS="${1}"
+
+# Options
+shift 1
+OPTIONS="${*}"
+
+for COMMAND in $(echo "${COMMANDS}" | sed -e 's|,| |g')
+do
+	if [ ! -e "/usr/libexec/${PROGRAM}/${COMMAND}" ]
+	then
+		echo "'${COMMAND}': no such ${PROGRAM} command, see container(1)." >&2
+		exit 1
+	fi
+
+	# Pre hooks
+	for FILE in "${HOOKS}/pre-${PROGRAM}".* "${HOOKS}/${NAME}.pre-${PROGRAM}"
+	do
+		if [ -x "${FILE}" ]
+		then
+			"${FILE}"
+		fi
+	done
+
+	# logfile
+	case "${COMMAND}" in
+		create|remove)
+			if [ -z "${DDNS_CLIENT_USER}" ]
+			then
+				DDNS_CLIENT_USER="${SUDO_USER:-${USER}}"
+			fi
+
+			DATE="$(date +%Y-%m-%d\ %H:%M:%S)"
+			HOST="$(hostname -f 2> /dev/null || hostname)"
+
+			echo "${DATE} ${HOST} ${DDNS_CLIENT_USER} ${PROGRAM} ${COMMAND} ${OPTIONS}" >> "/var/log/${SOFTWARE}/${PROGRAM}.log"
+			;;
+	esac
+
+	# Run
+	"/usr/libexec/${PROGRAM}/${COMMAND}" "${OPTIONS}"
+
+	# Post hooks
+	for FILE in "${HOOKS}/post-${PROGRAM}".* "${HOOKS}/${NAME}.post-${PROGRAM}"
+	do
+		if [ -x "${FILE}" ]
+		then
+			"${FILE}"
+		fi
+	done
+done
-- 
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