BSD_MAGIC
if (dl == NULL || dl->d_magic != BSD_MAGIC || dl->d_magic2 != BSD_MAGIC)
if (dl->d_magic != BSD_MAGIC || dl->d_magic2 != BSD_MAGIC ||
#define DISKMAGIC BSD_MAGIC /* The disk magic number */
le32enc(&d->d_magic, BSD_MAGIC);
le32enc(&d->d_magic2, BSD_MAGIC);