1 /* Copyright (C) 1993-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <errno.h>
19 #include <stddef.h>
20 #include <dirent.h>
21 #include <unistd.h>
22 #include "dirstream.h"
23
24 /* Seek to position POS in DIRP. */
25 void
__seekdir(DIR * dirp,long int pos)26 __seekdir (DIR *dirp, long int pos)
27 {
28 __libc_lock_lock (dirp->__lock);
29 /* Change our entry index pointer to POS and discard any data already
30 read. The next `readdir' call will notice the empty block and read
31 anew from the location in DIRP->__entry_ptr and reset the other state
32 variables. */
33 dirp->__entry_ptr = pos;
34 dirp->__size = 0;
35 __libc_lock_unlock (dirp->__lock);
36 }
37
38 weak_alias (__seekdir, seekdir)
39