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568035b7 | 1 | /* Copyright (C) 1991-2013 Free Software Foundation, Inc. |
a5a0310d UD |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
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8 | |
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 | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
a5a0310d | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
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15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
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17 | |
18 | #include <errno.h> | |
19 | #include <unistd.h> | |
20 | ||
21 | /* Write NBYTES of BUF to FD at given position OFFSET without changing | |
22 | the file position. Return the number written, or -1. */ | |
23 | ssize_t | |
778c59c8 | 24 | __libc_pwrite (int fd, const void *buf, size_t nbytes, off_t offset) |
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25 | { |
26 | if (nbytes == 0) | |
27 | return 0; | |
28 | if (fd < 0) | |
29 | { | |
30 | __set_errno (EBADF); | |
31 | return -1; | |
32 | } | |
33 | if (buf == NULL || offset < 0) | |
34 | { | |
35 | __set_errno (EINVAL); | |
36 | return -1; | |
37 | } | |
38 | ||
39 | __set_errno (ENOSYS); | |
40 | return -1; | |
41 | } | |
778c59c8 UD |
42 | strong_alias (__libc_pwrite, __pwrite) |
43 | weak_alias (__libc_pwrite, pwrite) | |
a5a0310d | 44 | stub_warning (pwrite) |