from small one page howto to huge articles all in one place
poll results
Last additions:
May 25th. 2007:
April, 26th. 2006:
| You are here: manpages
STATVFS
Section: Linux Programmer's Manual (3)
Updated: 2003-08-22
Index
Return to Main Contents
NAME
statvfs, fstatvfs - get file system statistics
SYNOPSIS
#include <sys/statvfs.h>
int statvfs(const char *path, struct statvfs *buf);
int fstatvfs(int fd, struct statvfs *buf);
DESCRIPTION
The function
statvfs()
returns information about a mounted file system.
path
is the pathname of any file within the mounted file system.
buf
is a pointer to a
statvfs
structure defined approximately as follows:
struct statvfs {
unsigned long f_bsize; /* file system block size */
unsigned long f_frsize; /* fragment size */
fsblkcnt_t f_blocks; /* size of fs in f_frsize units */
fsblkcnt_t f_bfree; /* # free blocks */
fsblkcnt_t f_bavail; /* # free blocks for unprivileged users */
fsfilcnt_t f_files; /* # inodes */
fsfilcnt_t f_ffree; /* # free inodes */
fsfilcnt_t f_favail; /* # free inodes for unprivileged users */
unsigned long f_fsid; /* file system ID */
unsigned long f_flag; /* mount flags */
unsigned long f_namemax; /* maximum filename length */
};
Here the types
fsblkcnt_t
and
fsfilcnt_t
are defined in
<sys/types.h>.
Both used to be
unsigned long.
The field
f_flag
is a bit mask (of mount flags, see
mount(8)).
Bits defined by POSIX are
- ST_RDONLY
-
Read-only file system.
- ST_NOSUID
-
Set-user-ID/set-group-ID bits are ignored by
exec(3).
It is unspecified whether all members of the returned struct
have meaningful values on all file systems.
fstatvfs()
returns the same information about an open file referenced by descriptor
fd.
RETURN VALUE
On success, zero is returned.
On error, -1 is returned, and
errno
is set appropriately.
ERRORS
- EACCES
-
(statvfs())
Search permission is denied for a component of the path prefix of
path.
(See also
path_resolution(7).)
- EBADF
-
(fstatvfs())
fd
is not a valid open file descriptor.
- EFAULT
-
Buf
or
path
points to an invalid address.
- EINTR
-
This call was interrupted by a signal.
- EIO
-
An I/O error occurred while reading from the file system.
- ELOOP
-
(statvfs())
Too many symbolic links were encountered in translating
path.
- ENAMETOOLONG
-
(statvfs())
path
is too long.
- ENOENT
-
(statvfs())
The file referred to by
path
does not exist.
- ENOMEM
-
Insufficient kernel memory was available.
- ENOSYS
-
The file system does not support this call.
- ENOTDIR
-
(statvfs())
A component of the path prefix of
path
is not a directory.
- EOVERFLOW
-
Some values were too large to be represented in the returned struct.
CONFORMING TO
POSIX.1-2001.
NOTES
The Linux kernel has system calls
statfs(2)
and
fstatfs(2)
to support this library call.
The current glibc implementations of
pathconf(path, _PC_REC_XFER_ALIGN);
pathconf(path, _PC_ALLOC_SIZE_MIN);
pathconf(path, _PC_REC_MIN_XFER_SIZE);
respectively use the
f_frsize,
f_frsize,
and
f_bsize
fields of the return value of
statvfs(path,buf).
SEE ALSO
statfs(2)
COLOPHON
This page is part of release 3.27 of the Linux
man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
- COLOPHON
-
Please read "Why adblockers are badwww.cars2fast4u.de
|
Other free services .
.
| 
|
|
- Running on 
-
:
: 
