mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
114 lines
3.3 KiB
Groff
114 lines
3.3 KiB
Groff
.\" Copyright (c) 1989, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)getmntinfo.3 8.1 (Berkeley) 6/9/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 9, 1993
|
|
.Dt GETMNTINFO 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm getmntinfo
|
|
.Nd get information about mounted file systems
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In sys/ucred.h
|
|
.In sys/mount.h
|
|
.Ft int
|
|
.Fn getmntinfo "struct statfs **mntbufp" "int flags"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn getmntinfo
|
|
function
|
|
returns an array of
|
|
.Fn statfs
|
|
structures describing each currently mounted file system (see
|
|
.Xr statfs 2 ) .
|
|
.Pp
|
|
The
|
|
.Fn getmntinfo
|
|
function
|
|
passes its
|
|
.Fa flags
|
|
argument transparently to
|
|
.Xr getfsstat 2 .
|
|
.Sh RETURN VALUES
|
|
On successful completion,
|
|
.Fn getmntinfo
|
|
returns a count of the number of elements in the array.
|
|
The pointer to the array is stored into
|
|
.Fa mntbufp .
|
|
.Pp
|
|
If an error occurs, zero is returned and the external variable
|
|
.Va errno
|
|
is set to indicate the error.
|
|
Although the pointer
|
|
.Fa mntbufp
|
|
will be unmodified, any information previously returned by
|
|
.Fn getmntinfo
|
|
will be lost.
|
|
.Sh ERRORS
|
|
The
|
|
.Fn getmntinfo
|
|
function
|
|
may fail and set errno for any of the errors specified for the library
|
|
routines
|
|
.Xr getfsstat 2
|
|
or
|
|
.Xr malloc 3 .
|
|
.Sh SEE ALSO
|
|
.Xr getfsstat 2 ,
|
|
.Xr mount 2 ,
|
|
.Xr statfs 2 ,
|
|
.Xr mount 8
|
|
.Sh HISTORY
|
|
The
|
|
.Fn getmntinfo
|
|
function first appeared in
|
|
.Bx 4.4 .
|
|
.Sh BUGS
|
|
The
|
|
.Fn getmntinfo
|
|
function writes the array of structures to an internal static object
|
|
and returns
|
|
a pointer to that object.
|
|
Subsequent calls to
|
|
.Fn getmntinfo
|
|
will modify the same object.
|
|
.Pp
|
|
The memory allocated by
|
|
.Fn getmntinfo
|
|
cannot be
|
|
.Xr free 3 Ns 'd
|
|
by the application.
|