1 | /* Copyright (C) 1997-2017 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <errno.h> |
20 | #include <sys/ustat.h> |
21 | #include <sys/sysmacros.h> |
22 | |
23 | #include <sysdep.h> |
24 | #include <sys/syscall.h> |
25 | |
26 | int |
27 | ustat (dev_t dev, struct ustat *ubuf) |
28 | { |
29 | unsigned long long int k_dev; |
30 | |
31 | /* We must convert the value to dev_t type used by the kernel. */ |
32 | k_dev = dev & ((1ULL << 32) - 1); |
33 | if (k_dev != dev) |
34 | return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); |
35 | |
36 | return INLINE_SYSCALL (ustat, 2, (unsigned int) k_dev, ubuf); |
37 | } |
38 | |