1 /* Return information about the filesystem on which FD resides.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000 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 <_lfs_64.h>
20
21 #include <errno.h>
22 #include <string.h>
23 #include <sys/statfs.h>
24 #include <sys/statvfs.h>
25 #include <sys/syscall.h>
26 #include <stddef.h>
27
28 #if defined __NR_fstatfs
29 extern __typeof(fstatfs) __libc_fstatfs;
30
31 /* Return information about the filesystem on which FD resides. */
fstatfs64(int fd,struct statfs64 * buf)32 int fstatfs64 (int fd, struct statfs64 *buf)
33 {
34 struct statfs buf32;
35
36 if (__libc_fstatfs (fd, &buf32) < 0)
37 return -1;
38
39 buf->f_type = buf32.f_type;
40 buf->f_bsize = buf32.f_bsize;
41 buf->f_blocks = buf32.f_blocks;
42 buf->f_bfree = buf32.f_bfree;
43 buf->f_bavail = buf32.f_bavail;
44 buf->f_files = buf32.f_files;
45 buf->f_ffree = buf32.f_ffree;
46 buf->f_fsid = buf32.f_fsid;
47 # ifdef _STATFS_F_FRSIZE
48 buf->f_frsize = buf32.f_frsize;
49 # endif
50 buf->f_namelen = buf32.f_namelen;
51 memcpy (buf->f_spare, buf32.f_spare, sizeof (buf32.f_spare));
52
53 return 0;
54 }
55 #else
56 /*
57 * Use the fstatfs64 system call if fstatfs is not defined
58 * This is for backwards compatibility and it should be
59 * made default in the future
60 */
fstatfs64(int fd,struct statfs64 * buf)61 int fstatfs64(int fd, struct statfs64 *buf)
62 {
63 /* Signature has 2 arguments but syscalls wants 3 */
64 return INLINE_SYSCALL(fstatfs64, 3, fd, sizeof(*buf), buf);
65 }
66 #endif
67 libc_hidden_def(fstatfs64)
68