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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. |
ba9234d9 | 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. | |
ba9234d9 | 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 | |
ba9234d9 | 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. */ | |
ba9234d9 UD |
26 | |
27 | #include "libioP.h" | |
8eaaffde | 28 | #include <stdio.h> |
ba9234d9 | 29 | |
085320f5 UD |
30 | #undef fwrite_unlocked |
31 | ||
9964a145 ZW |
32 | size_t |
33 | fwrite_unlocked (const void *buf, size_t size, size_t count, FILE *fp) | |
ba9234d9 | 34 | { |
9964a145 ZW |
35 | size_t request = size * count; |
36 | size_t written = 0; | |
ba9234d9 | 37 | CHECK_FILE (fp, 0); |
ba9234d9 | 38 | if (request == 0) |
a27c96b0 | 39 | return 0; |
d64b6ad0 UD |
40 | if (_IO_fwide (fp, -1) == -1) |
41 | { | |
42 | written = _IO_sputn (fp, (const char *) buf, request); | |
3d110c7c EB |
43 | /* We have written all of the input in case the return value indicates |
44 | this or EOF is returned. The latter is a special case where we | |
45 | simply did not manage to flush the buffer. But the data is in the | |
46 | buffer and therefore written as far as fwrite is concerned. */ | |
47 | if (written == request || written == EOF) | |
d64b6ad0 UD |
48 | return count; |
49 | } | |
50 | ||
51 | return written / size; | |
ba9234d9 | 52 | } |
3ba06713 | 53 | libc_hidden_def (fwrite_unlocked) |