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688903eb | 1 | /* Copyright (C) 1993-2018 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
40a55d20 | 3 | |
41bdb6e2 AJ |
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. | |
40a55d20 | 8 | |
41bdb6e2 AJ |
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 | |
40a55d20 | 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 AJ |
12 | Lesser General Public License for more details. |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. | |
41bdb6e2 AJ |
17 | |
18 | As a special exception, if you link the code in this file with | |
19 | files compiled with a GNU compiler to produce an executable, | |
20 | that does not cause the resulting executable to be covered by | |
21 | the GNU Lesser General Public License. This exception does not | |
22 | however invalidate any other reasons why the executable file | |
23 | might be covered by the GNU Lesser General Public License. | |
24 | This exception applies to code released by its copyright holders | |
25 | in files containing the exception. */ | |
96aa2d94 RM |
26 | |
27 | #include <libioP.h> | |
28 | ||
9964a145 ZW |
29 | off64_t |
30 | _IO_seekpos_unlocked (FILE *fp, off64_t pos, int mode) | |
96aa2d94 RM |
31 | { |
32 | /* If we have a backup buffer, get rid of it, since the __seekoff | |
33 | callback may not know to do the right thing about it. | |
34 | This may be over-kill, but it'll do for now. TODO */ | |
77fe0b9c UD |
35 | if (_IO_fwide (fp, 0) <= 0) |
36 | { | |
37 | if (_IO_have_backup (fp)) | |
d18ea0c5 | 38 | _IO_free_backup_area (fp); |
77fe0b9c UD |
39 | } |
40 | else | |
41 | { | |
42 | if (_IO_have_wbackup (fp)) | |
d18ea0c5 | 43 | _IO_free_wbackup_area (fp); |
77fe0b9c UD |
44 | } |
45 | ||
77d16e26 | 46 | return _IO_SEEKOFF (fp, pos, 0, mode); |
52a16e58 UD |
47 | } |
48 | ||
49 | ||
9964a145 ZW |
50 | off64_t |
51 | _IO_seekpos (FILE *fp, off64_t pos, int mode) | |
52a16e58 | 52 | { |
9964a145 | 53 | off64_t retval; |
52a16e58 | 54 | |
0261d33f | 55 | _IO_acquire_lock (fp); |
52a16e58 | 56 | retval = _IO_seekpos_unlocked (fp, pos, mode); |
0261d33f | 57 | _IO_release_lock (fp); |
61eb22d3 | 58 | return retval; |
96aa2d94 | 59 | } |