.\"	$MirOS: src/lib/libc/sys/statvfs.2,v 1.1 2007/05/19 22:07:03 tg Exp $
.\"	$NetBSD: statvfs.2,v 1.4 2005/11/04 06:09:20 gendalia Exp $
.\"
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.\"	@(#)statfs.2	8.5 (Berkeley) 5/24/95
.\"
.Dd May 19, 2007
.Dt STATVFS 2
.Os
.Sh NAME
.Nm statvfs ,
.Nm fstatvfs ,
.Nd get file system statistics
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In sys/statvfs.h
.Ft int
.Fn statvfs "const char *path" "struct statvfs *buf"
.Ft int
.Fn fstatvfs "int fd" "struct statvfs *buf"
.Sh DESCRIPTION
.Fn statvfs
return information about a mounted file system.
.Fa path
is the path name of any file within the mounted file system.
.Fa buf
is a pointer to a
.Nm statvfs
structure.
.Pp
.Fn fstatvfs
return the same information about an open file referenced by descriptor
.Fa fd .
.Sh RETURN VALUES
Upon successful completion, a value of 0 is returned.
Otherwise, \-1 is returned and the global variable
.Va errno
is set to indicate the error.
.Sh ERRORS
.Fn statvfs
and
.Fn fstatvfs
fail for the same reasons
.Fn statfs
and
.Fn statvfs
can fail.
.Sh SEE ALSO
.Xr fstatfs 3 ,
.Xr statfs 3
.Sh HISTORY
The
.Fn statvfs ,
and
.Fn fstatvfs
functions first appeared in
.Mx 10
as a pure user-space implementation.
.Sh AUTHORS
The actual implementation of the user-space functions was taken from
.Nx
libnbcompat.