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04277e02 | 1 | /* Copyright (C) 1993-2019 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
96aa2d94 | 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. | |
96aa2d94 | 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 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://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 | #include "stdio.h" | |
29 | ||
30 | int | |
9964a145 | 31 | _IO_ferror (FILE *fp) |
96aa2d94 | 32 | { |
7c713e28 | 33 | int result; |
96aa2d94 | 34 | CHECK_FILE (fp, EOF); |
d2e04918 SN |
35 | if (!_IO_need_lock (fp)) |
36 | return _IO_ferror_unlocked (fp); | |
7c713e28 RM |
37 | _IO_flockfile (fp); |
38 | result = _IO_ferror_unlocked (fp); | |
39 | _IO_funlockfile (fp); | |
40 | return result; | |
96aa2d94 | 41 | } |
40a55d20 | 42 | |
d41c6f61 | 43 | weak_alias (_IO_ferror, ferror) |
bdb04ee8 UD |
44 | |
45 | #ifndef _IO_MTSAFE_IO | |
46 | #undef ferror_unlocked | |
47 | weak_alias (_IO_ferror, ferror_unlocked) | |
48 | #endif |