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04277e02 | 1 | /* Copyright (C) 2005-2019 Free Software Foundation, Inc. |
5c46041a 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 | |
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. | |
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 | |
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/>. */ | |
5c46041a UD |
17 | |
18 | #include <errno.h> | |
19 | #include <fcntl.h> | |
20 | #include <stddef.h> | |
21 | #include <unistd.h> | |
22 | ||
23 | ||
24 | /* Make a link to FROM relative to FROMFD called TO relative to TOFD. */ | |
25 | int | |
9d46370c | 26 | linkat (int fromfd, const char *from, int tofd, const char *to, int flags) |
5c46041a UD |
27 | { |
28 | if (from == NULL || to == NULL) | |
29 | { | |
30 | __set_errno (EINVAL); | |
31 | return -1; | |
32 | } | |
33 | ||
34 | if ((tofd != AT_FDCWD && tofd < 0 && *to != '/') | |
35 | || (fromfd != AT_FDCWD && fromfd < 0 && *from != '/')) | |
36 | { | |
37 | __set_errno (EBADF); | |
38 | return -1; | |
39 | } | |
40 | ||
41 | __set_errno (ENOSYS); | |
42 | return -1; | |
43 | } | |
44 | stub_warning (linkat) |