(void) lseek (dirp->fd, (off_t) 0, SEEK_SET);
(void) __lseek (dirp->fd, (off_t) 0, SEEK_SET);
rewinddir (dirp)     DIR *dirp;{  __libc_lock_lock (dirp->lock);  (void) lseek (dirp->fd, (off_t) 0, SEEK_SET);  dirp->offset = 0;  dirp->size = 0;  __libc_lock_unlock (dirp->lock);}