DIOCGFWSECTORS
if (ioctl(f, DIOCGFWSECTORS, &u) == 0)
error = ioctl(fd, DIOCGFWSECTORS, &u);
if (bpb->bpbSecPerTrack == 0 && ioctl(fd, DIOCGFWSECTORS,
#if defined(DIOCGFWSECTORS) && defined(DIOCGFWHEADS)
error = ioctl(read_fd, DIOCGFWSECTORS, &fwsectors);
error = fo_ioctl(fp, DIOCGFWSECTORS,
case DIOCGFWSECTORS:
error = ioctl(fd, DIOCGFWSECTORS, &fwsectors);