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1 | /* Return information about the filesystem on which FD resides. |
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2 | Copyright (C) 1996-2019 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
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 <string.h> |
21 | #include <stddef.h> |
22 | #include <sysdep.h> |
23 | #include <kernel_stat.h> |
24 | |
25 | /* Hide the prototypes for __fstatfs and fstatfs so that GCC will not |
26 | complain about the different function signatures if they are aliased |
27 | to __fstat64. If STATFS_IS_STATFS64 is not zero then the statfs and |
28 | statfs64 structures have an identical layout but different type names. */ |
29 | |
30 | #if STATFS_IS_STATFS64 |
31 | # define __fstatfs __fstatfs_disable |
32 | # define fstatfs fstatfs_disable |
33 | #endif |
34 | #include <sys/statfs.h> |
35 | |
36 | #include <kernel-features.h> |
37 | |
38 | /* Defined in statfs64.c. */ |
39 | extern int __no_statfs64 attribute_hidden; |
40 | |
41 | /* Return information about the filesystem on which FD resides. */ |
42 | int |
43 | __fstatfs64 (int fd, struct statfs64 *buf) |
44 | { |
45 | #ifdef __NR_fstatfs64 |
46 | # if __ASSUME_STATFS64 == 0 |
47 | if (! __no_statfs64) |
48 | # endif |
49 | { |
50 | int result = INLINE_SYSCALL (fstatfs64, 3, fd, sizeof (*buf), buf); |
51 | |
52 | # if __ASSUME_STATFS64 == 0 |
53 | if (result == 0 || errno != ENOSYS) |
54 | # endif |
55 | return result; |
56 | |
57 | # if __ASSUME_STATFS64 == 0 |
58 | __no_statfs64 = 1; |
59 | # endif |
60 | } |
61 | #endif |
62 | |
63 | #if __ASSUME_STATFS64 == 0 |
64 | struct statfs buf32; |
65 | |
66 | if (__fstatfs (fd, &buf32) < 0) |
67 | return -1; |
68 | |
69 | buf->f_type = buf32.f_type; |
70 | buf->f_bsize = buf32.f_bsize; |
71 | buf->f_blocks = buf32.f_blocks; |
72 | buf->f_bfree = buf32.f_bfree; |
73 | buf->f_bavail = buf32.f_bavail; |
74 | buf->f_files = buf32.f_files; |
75 | buf->f_ffree = buf32.f_ffree; |
76 | buf->f_fsid = buf32.f_fsid; |
77 | buf->f_namelen = buf32.f_namelen; |
78 | buf->f_frsize = buf32.f_frsize; |
79 | memcpy (buf->f_spare, buf32.f_spare, sizeof (buf32.f_spare)); |
80 | |
81 | return 0; |
82 | #endif |
83 | } |
84 | weak_alias (__fstatfs64, fstatfs64) |
85 | |
86 | #undef __fstatfs |
87 | #undef fstatfs |
88 | |
89 | #if STATFS_IS_STATFS64 |
90 | weak_alias (__fstatfs64, __fstatfs) |
91 | weak_alias (__fstatfs64, fstatfs) |
92 | #endif |
93 |
Warning: That file was not part of the compilation database. It may have many parsing errors.