Fix TC match for bridge ports

git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@3453 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb

Shorewall/functions

@@ -49,6 +49,24 @@ list_search() # $1 = element to search for , $2-$n = list
     return 1
 }
 
+#
+# Return a space separated list of values matching
+#
+list_walk() # $1 = element to search for, $2-$n = list
+{
+    local e=$1 result=
+
+    while [ $# -gt 1 ]; do
+	shift
+	case $1 in
+	    $e*)
+	    	result="$result ${1##$e}"
+		;;
+	esac
+    done
+    echo $result
+}
+
 #
 # Functions to count list elements
 # - - - - - - - - - - - - - - - -