| 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 |
|---|
| 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 | |
|---|
