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1/* Return information about the filesystem on which FD resides.
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. */
39extern int __no_statfs64 attribute_hidden;
40
41/* Return information about the filesystem on which FD resides. */
42int
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}
84weak_alias (__fstatfs64, fstatfs64)
85
86#undef __fstatfs
87#undef fstatfs
88
89#if STATFS_IS_STATFS64
90weak_alias (__fstatfs64, __fstatfs)
91weak_alias (__fstatfs64, fstatfs)
92#endif
93

Warning: That file was not part of the compilation database. It may have many parsing errors.