1.\" $NetBSD: statvfs.5,v 1.10 2008/06/23 04:22:36 dholland Exp $ 2.\" 3.\" Copyright (c) 1989, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)statfs.2 8.5 (Berkeley) 5/24/95 31.\" 32.Dd June 23, 2008 33.Dt STATVFS 5 34.Os 35.Sh NAME 36.Nm statvfs 37.Nd file system statistics 38.Sh SYNOPSIS 39.In sys/types.h 40.In sys/statvfs.h 41.Sh DESCRIPTION 42The 43.Aq Pa sys/statvfs.h 44header defines the structures and functions that 45return information about a mounted file system. 46The 47.Nm statvfs 48structure is defined as follows: 49.Bd -literal 50 51struct statvfs { 52 unsigned long f_bsize; /* system block size */ 53 unsigned long f_frsize; /* system fragment size */ 54 55 fsblkcnt_t f_blocks; /* number of blocks in file system */ 56 fsblkcnt_t f_bfree; /* free blocks avail in file system */ 57 fsblkcnt_t f_bavail; /* free blocks avail to non-root */ 58 59 fsfilcnt_t f_files; /* total file nodes in file system */ 60 fsfilcnt_t f_ffree; /* free file nodes in file system */ 61 fsfilcnt_t f_favail; /* free file nodes avail to non-root */ 62 63 unsigned long f_fsid; /* File system ID */ 64 65 unsigned long f_flag; /* flags */ 66 67 unsigned long f_namemax;/* maximum filename length */ 68}; 69.Ed 70.Pp 71The 72.Fa f_flag 73argument can have the following bits set: 74.Bl -tag -width ST_SYNCHRONOUS 75.It Dv ST_RDONLY 76The filesystem is mounted read-only; 77Even the super-user may not write on it. 78.It Dv ST_NOSUID 79Setuid and setgid bits on files are not honored when they are executed. 80.It Dv ST_NOTRUNC 81File names longer than NAME_MAX are not truncated. 82.El 83.Sh SEE ALSO 84.Xr statvfs 2 85.Sh HISTORY 86The 87.Aq Pa sys/statvfs.h 88header first appeared in 89.Nx 3.0 . 90