Make sed not hang when there are no firewall files

[invirt/packages/invirt-iptables.git] / debian / invirt-iptables.init

diff --git a/debian/invirt-iptables.init b/debian/invirt-iptables.init
index e2b8c6f..ca3e6f8 100755 (executable)
--- a/debian/invirt-iptables.init
+++ b/debian/invirt-iptables.init
@@ -22,10 +22,14 @@ do_start()
 {
         echo 1 > /proc/sys/net/ipv4/ip_forward
 
-        for table in $(sed -ne 's/^*//p' $(run-parts --list "$RULES")); do
-            iptables -t "$table" -F
-        done
-       cat $(run-parts --list "$RULES") | iptables-restore -n
+       list=$(run-parts --list "$RULES")
+
+       if [ ! -z "$list" ]; then
+            for table in $(sed -ne 's/^*//p' $list); do
+               iptables -t "$table" -F
+            done
+           cat $list | iptables-restore -n
+       fi
 }
 
 do_reload()