netstat: return nothing when /proc/net/snmp6 not found
@@ -121,6 +121,12 @@ func parseNetStats(r io.Reader, fileName string) (map[string]map[string]string,
func getSNMP6Stats(fileName string) (map[string]map[string]string, error) {
file, err := os.Open(fileName)
if err != nil {
+ // On systems with IPv6 disabled, this file won't exist.
+ // Do nothing.
+ if os.IsNotExist(err) {
+ return nil, nil
+ }
+
return nil, err
}
defer file.Close()
