ddns-scripts: update bind-nsupdate to json

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

net/ddns-scripts/Makefile

@@ -432,17 +432,17 @@ endef
 define Package/ddns-scripts_nsupdate/install
 	$(INSTALL_DIR) $(1)/etc/uci-defaults
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/files/ddns.defaults $(1)/etc/uci-defaults/ddns_nsupdate
+
 	$(INSTALL_DIR) $(1)/usr/lib/ddns
-	$(INSTALL_BIN) $(PKG_BUILD_DIR)/files/update_nsupdate.sh $(1)/usr/lib/ddns
+	$(INSTALL_BIN) ./files/usr/lib/ddns/update_nsupdate.sh \
+		$(1)/usr/lib/ddns
+
+	$(INSTALL_DIR) $(1)/usr/share/ddns/services
+	$(INSTALL_DATA) ./files/usr/share/ddns/services/bind-nsupdate.json \
+		$(1)/usr/share/ddns/services
 endef
 define Package/ddns-scripts_nsupdate/postinst
 	#!/bin/sh
-	# remove old services file entries
-	/bin/sed -i '/bind-nsupdate/d' $${IPKG_INSTROOT}/etc/ddns/services	>/dev/null 2>&1
-	/bin/sed -i '/bind-nsupdate/d' $${IPKG_INSTROOT}/etc/ddns/services_ipv6	>/dev/null 2>&1
-	# and create new
-	printf "%s\\t%s\\n" '"bind-nsupdate"' '"update_nsupdate.sh"' >> $${IPKG_INSTROOT}/etc/ddns/services
-	printf "%s\\t%s\\n" '"bind-nsupdate"' '"update_nsupdate.sh"' >> $${IPKG_INSTROOT}/etc/ddns/services_ipv6
 	# on real system restart service if enabled
 	[ -z "$${IPKG_INSTROOT}" ] && {
 		[ -x /etc/uci-defaults/ddns_nsupdate ] && \
@@ -457,9 +457,6 @@ define Package/ddns-scripts_nsupdate/prerm
 	#!/bin/sh
 	# if NOT run buildroot then stop service
 	[ -z "$${IPKG_INSTROOT}" ] && /etc/init.d/ddns stop			>/dev/null 2>&1
-	# remove services file entries
-	/bin/sed -i '/bind-nsupdate/d' $${IPKG_INSTROOT}/etc/ddns/services	>/dev/null 2>&1
-	/bin/sed -i '/bind-nsupdate/d' $${IPKG_INSTROOT}/etc/ddns/services_ipv6	>/dev/null 2>&1
 	exit 0	# suppress errors
 endef
 

net/ddns-scripts/files/usr/share/ddns/services/bind-nsupdate.json

@@ -0,0 +1,9 @@
+{
+	"name": "bind-nsupdate",
+	"ipv4": {
+		"url": "update_nsupdate.sh"
+	},
+	"ipv6": {
+		"url": "update_nsupdate.sh"
+	}
+}