Merge pull request #2798 from mkresin/ddns-scripts

ddns-scripts: add support for glue records

net/ddns-scripts/Makefile

@@ -12,7 +12,7 @@ PKG_NAME:=ddns-scripts
 PKG_VERSION:=2.7.1
 # Release == build
 # increase on changes of services files or tld_names.dat
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_LICENSE:=GPL-2.0
 PKG_MAINTAINER:=Christian Schoenebeck <christian.schoenebeck@gmail.com>

net/ddns-scripts/files/dynamic_dns_functions.sh

@@ -956,6 +956,7 @@ get_registered_ip() {
 	# 1	no IP detected
 
 	[ $# -lt 1 -o $# -gt 2 ] && write_log 12 "Error calling 'get_registered_ip()' - wrong number of parameters"
+	[ $is_glue -eq 1 ] && [ -z "$(which host)" ] && write_log 12 "Update of glue records is only supported using BIND host"
 	write_log 7 "Detect registered/public IP"
 
 	# set correct regular expression
@@ -968,6 +969,7 @@ get_registered_ip() {
 			[ $use_ipv6 -eq 0 ] && __PROG="$__PROG -4"  || __PROG="$__PROG -6"
 		fi
 		[ $force_dnstcp -eq 1 ] && __PROG="$__PROG -T"	# force TCP
+		[ $is_glue -eq 1 ] && __PROG="$__PROG -v" # use verbose output to get additional section
 
 		__RUNPROG="$__PROG $lookup_host $dns_server >$DATFILE 2>$ERRFILE"
 		__PROG="BIND host"
@@ -1039,6 +1041,12 @@ get_registered_ip() {
 		else
 			if [ "$__PROG" = "BIND host" ]; then
 				__DATA=$(cat $DATFILE | awk -F "address " '/has/ {print $2; exit}' )
+
+				if [ $is_glue -eq 1 ]; then
+					__DATA=$(cat $DATFILE | grep "^$lookup_host" | grep -m 1 -o "$__REGEX" )
+				else
+					__DATA=$(cat $DATFILE | awk -F "address " '/has/ {print $2; exit}' )
+				fi
 			elif [ "$__PROG" = "Knot host" ]; then
 				__DATA=$(cat $DATFILE | awk -F "address " '/has/ {print $2; exit}' )
 			elif [ "$__PROG" = "drill" ]; then

net/ddns-scripts/files/dynamic_dns_updater.sh

@@ -110,6 +110,7 @@ trap "trap_handler 15" 15	# SIGTERM	Termination
 # force_dnstcp		force communication with DNS server via TCP instead of default UDP
 # proxy			using a proxy for communication !!! ALSO used to detect local IP via web => return proxy's IP !!!
 # use_logfile		self-explanatory "/var/log/ddns/$SECTION_ID.log"
+# is_glue			the record that should be updated is a glue record
 #
 # some functionality needs
 # - GNU Wget or cURL installed for sending updates to DDNS service