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d614a753 | 1 | /* Copyright (C) 1991-2020 Free Software Foundation, Inc. |
478b92f0 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
478b92f0 | 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. | |
28f540f4 | 8 | |
478b92f0 UD |
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. |
28f540f4 | 13 | |
41bdb6e2 | 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/>. */ |
28f540f4 | 17 | |
28f540f4 | 18 | #include <errno.h> |
dfd2257a | 19 | #include <unistd.h> |
28f540f4 | 20 | |
dfd2257a UD |
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_pwrite64 (int fd, const void *buf, size_t nbytes, off64_t offset) |
28f540f4 | 25 | { |
dfd2257a UD |
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) | |
28f540f4 | 34 | { |
c4029823 | 35 | __set_errno (EINVAL); |
28f540f4 RM |
36 | return -1; |
37 | } | |
38 | ||
c4029823 | 39 | __set_errno (ENOSYS); |
28f540f4 RM |
40 | return -1; |
41 | } | |
778c59c8 | 42 | strong_alias (__libc_pwrite64, __pwrite64) |
37ba7d66 | 43 | libc_hidden_def (__pwrite64) |
778c59c8 | 44 | weak_alias (__libc_pwrite64, pwrite64) |
dfd2257a | 45 | stub_warning (pwrite64) |