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b168057a | 1 | /* Copyright (C) 1999-2015 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
d052b31b | 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. | |
d052b31b | 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 | |
d052b31b | 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. */ | |
d052b31b UD |
26 | |
27 | #include <libioP.h> | |
28 | #include <stdio.h> | |
df8cc075 | 29 | #include <wchar.h> |
d052b31b UD |
30 | |
31 | int | |
32 | fwide (fp, mode) | |
33 | _IO_FILE *fp; | |
34 | int mode; | |
35 | { | |
36 | int result; | |
37 | ||
38 | /* Normalize the value. */ | |
39 | mode = mode < 0 ? -1 : (mode == 0 ? 0 : 1); | |
40 | ||
41 | if (mode == 0 || fp->_mode != 0) | |
42 | /* The caller simply wants to know about the current orientation | |
43 | or the orientation already has been determined. */ | |
44 | return fp->_mode; | |
45 | ||
0261d33f | 46 | _IO_acquire_lock (fp); |
d052b31b | 47 | result = _IO_fwide (fp, mode); |
0261d33f | 48 | _IO_release_lock (fp); |
d052b31b UD |
49 | |
50 | return result; | |
51 | } |