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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. |
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 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 | #include "stdio.h" | |
29 | ||
30 | #undef getchar | |
31 | ||
32 | int | |
60d2f8f3 | 33 | getchar (void) |
96aa2d94 | 34 | { |
7c713e28 | 35 | int result; |
d2e04918 SN |
36 | if (!_IO_need_lock (_IO_stdin)) |
37 | return _IO_getc_unlocked (_IO_stdin); | |
0261d33f | 38 | _IO_acquire_lock (_IO_stdin); |
f042f18f | 39 | result = _IO_getc_unlocked (_IO_stdin); |
0261d33f | 40 | _IO_release_lock (_IO_stdin); |
7c713e28 | 41 | return result; |
96aa2d94 | 42 | } |
bdb04ee8 UD |
43 | |
44 | #if defined weak_alias && !defined _IO_MTSAFE_IO | |
45 | #undef getchar_unlocked | |
46 | weak_alias (getchar, getchar_unlocked) | |
47 | #endif |