strncpy (ifr.ifr_name, e->d_name, sizeof (ifr.ifr_name));
ifr.ifr_name[ARRAY_LEN (ifr.ifr_name) - 1] = '\0';
if (ioctl (fd, SIOCGIFFLAGS, &ifr) < 0)
strncpy (ifr.ifr_name, e->d_name, sizeof (ifr.ifr_name));
ifr.ifr_name[ARRAY_LEN (ifr.ifr_name) - 1] = '\0';
if (ioctl (fd, SIOCGIFFLAGS, &ifr) < 0)