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Files Reference
Describes the structure of the
statistics that are returned by the statvfs subroutines and
fsatvfs subroutines.
The statvfs
subroutines and fsatvfs subroutines return information on a mounted
filesystem in the form of statvfs. The
/usr/include/sys/statvfs.h file describes the following
fields in the statvfs subroutine:
| f_bsize
| Preferred file system block size
|
| f_frsize
| Fundamental file system block size
|
| f_block
| Total number of block f_frsize in the file system.
|
| f_bfree
| Total number of free blocks of f_frsize in the file
system.
|
| f_bavail
| Total number of available blocks of f_frsize that can be used
by users without root access.
|
| f_files
| Total number of file nodes in the file system
|
| f_ffree
| Number of free file nodes in the file system.
|
| f_favail
| Number of free file nodes that can be user without root access.
|
| f_fsid
| File system ID.
|
| f_basetype
| File system type name
|
| f_flag
| File system flags:
- ST_RDONLY
- File system is mounted read only
- ST_NOSUID
- File system does not support set used ID file modes
- ST_NODEV
- Device opens are not allowed through mounts.
|
| f_namemax
| Maximum length of a component name for this file system
|
| f_fstr
| File system specific string.
|
The following prototypes also
appear in the /usr/include/sys/statvfs.h file:
extern int statvfs(const char *, struct statvfs *);
extern int fsatvfs(int, struct statvfs *);
The ststvfs subroutine, fstatvfs subroutine.
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