Return error when iptables is not found

Upstream-commit: c66d2b6a532c657b554ffa3c80b2cf15e218ee8e Component: engine
2013-03-28 14:30:56 -05:00
parent ef4aab72d7
commit de000293fa
1 changed files with 1 additions and 1 deletions
@@ -70,7 +70,7 @@ func networkSize(mask net.IPMask) (int32, error) {
 func iptables(args ...string) error {
 	path, err := exec.LookPath("iptables")
 	if err != nil {
-		log.Fatal("command not found: iptables")
+		return fmt.Errorf("command not found: iptables")
 	}
 	if err := exec.Command(path, args...).Run(); err != nil {
 		return fmt.Errorf("iptables failed: iptables %v", strings.Join(args, " "))