_readdir_unlocked
struct dirent12 *_readdir_unlocked(DIR *, int);
struct dirent *_readdir_unlocked(struct _dirdesc *, int)
dp = _readdir_unlocked(dirp, 1);
dp = _readdir_unlocked(dirp, 1);
if ((dp = _readdir_unlocked(dirp, 1)) != NULL)
if ((dp = _readdir_unlocked(dirp, 1)) != NULL)
if (_readdir_unlocked(dirp, 0) == NULL)