Check and return an error when iptables version parsing fails

coreos · Sep 3, 2019 · b1deb38 · b1deb38
1 parent 969b135
commit b1deb38
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/iptables/iptables.go b/iptables/iptables.go
@@ -101,7 +101,13 @@ func NewWithProtocol(proto Protocol) (*IPTables, error) {
 		return nil, err
 	}
 	vstring, err := getIptablesVersionString(path)
+	if err != nil {
+		return nil, fmt.Errorf("could not get iptables version: %v", err)
+	}
 	v1, v2, v3, mode, err := extractIptablesVersion(vstring)
+	if err != nil {
+		return nil, fmt.Errorf("failed to extract iptables version from [%s]: %v", vstring, err)
+	}
 
 	checkPresent, waitPresent, randomFullyPresent := getIptablesCommandSupport(v1, v2, v3)