_DIRENT_NAMEOFF
idb.d_reclen - _DIRENT_NAMEOFF(&idb) - idb.d_namlen);
idb.d_reclen - _DIRENT_NAMEOFF(&idb) - idb.d_namlen);
idb.d_reclen - _DIRENT_NAMEOFF(&idb) - idb.d_namlen);
i < curent.d_reclen - _DIRENT_NAMEOFF(&curent); i++)
#define DIRHDSIZ _DIRENT_NAMEOFF(dp)
((_DIRENT_NAMEOFF(dp) + (namlen) + 1 + _DIRENT_ALIGN(dp)) & \
dirent->d_reclen - _DIRENT_NAMEOFF(dirent)
dirent->d_reclen - _DIRENT_NAMEOFF(dirent)