Fixed possible deadlock

git-svn-id: https://oss.gonicus.de/repositories/gosa/trunk@6640 594d385d-05f5-0310-b6e9-bd551577e9d8

diff --git a/contrib/scripts/net-resolver.sh b/contrib/scripts/net-resolver.sh
index 98364c271f6a8ba6042670054c083a51748e508f..bd120264a12689a1eb4dd102e9c9f2e26d416e5f 100755 (executable)
--- a/contrib/scripts/net-resolver.sh
+++ b/contrib/scripts/net-resolver.sh
@@ -17,6 +17,10 @@ done
 
 mac=""
 ip=$(LANG=C $host $1 | grep address | head -n1 | sed 's/^.*[^0-9]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*$/\1/g')
+if [ -z "$ip" ]; then
+       echo ";"
+       exit 0
+fi
 if $fping -c1 -r3 -t500 $ip &> /dev/null; then
        mac=$($arp -n | awk "/^$ip/ {print \$3}")
 fi