__off_t pos;
long int pos;
seekdir (dirp, pos)     DIR *dirp;     __off_t pos;{  __libc_lock_lock (dirp->lock);  (void) __lseek(dirp->fd, pos, SEEK_SET);  dirp->size = 0;  dirp->offset = 0;  __libc_lock_unlock (dirp->lock);}