-/* sonar, Copyright (c) 1998-2017 Jamie Zawinski and Stephen Martin
+/* sonar, Copyright (c) 1998-2018 Jamie Zawinski and Stephen Martin
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
{
struct in_addr in2;
unsigned long mask;
- if (ifa->ifa_addr->sa_family != AF_INET)
+ if (! ifa->ifa_addr)
+ continue;
+ else if (ifa->ifa_addr->sa_family != AF_INET)
{
if (pd->debug_p)
fprintf (stderr, "%s: if: %4s: %s\n", progname,