[package] firewall: ensure that fw_get_subnet4() sets an empty value if no (valid) IPv4 addr was found

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27198 3c298f89-4303-0410-b956-a3cf2f4a3e73
2011-06-16 22:18:45 +00:00 · 2011-06-16 22:18:45 +00:00 · bf8e00c96d
parent a847a25be9
commit bf8e00c96d
1 changed files with 1 additions and 0 deletions
--- a/package/firewall/files/lib/fw.sh
+++ b/package/firewall/files/lib/fw.sh
@ -242,5 +242,6 @@ fw_get_subnet4() {
 				export -n -- "$_var=! $_flag $_ipaddr/${_netmask:-255.255.255.255}" || \
 				export -n -- "$_var=$_flag $_ipaddr/${_netmask:-255.255.255.255}"
 		;;
+		*) export -n -- "$_var=" ;;
 	esac
 }