DIOCRDELADDRS
if (ioctl(dev, DIOCRDELADDRS, &io) == -1)
case DIOCRDELADDRS:
case DIOCRDELADDRS:
case DIOCRDELADDRS: {
if (ioctl(dev, add ? DIOCRADDADDRS : DIOCRDELADDRS, &io) == -1 &&
what = del ? DIOCRDELADDRS : DIOCRADDADDRS;
if (ioctl(fd, op ? DIOCRADDADDRS : DIOCRDELADDRS, &io) == -1 &&