mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
97 lines
3.2 KiB
Groff
97 lines
3.2 KiB
Groff
.\" Copyright (c) 1995
|
|
.\" 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.
|
|
.\"
|
|
.\" @(#)kvm_getvfsbyname.3 8.3 (Berkeley) 5/4/95
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd May 4, 1995
|
|
.Dt GETVFSBYNAME 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm getvfsbyname
|
|
.Nd get information about a filesystem
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.Fd #include <sys/param.h>
|
|
.Fd #include <sys/mount.h>
|
|
.Ft int
|
|
.Fn getvfsbyname "const char *name" "struct vfsconf *vfc"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn getvfsbyname
|
|
function provides access to information about a
|
|
filesystem module that is configured in the kernel.
|
|
If successful,
|
|
the requested filesystem
|
|
.Fa vfsconf
|
|
is returned in the location pointed to by
|
|
.Fa vfc .
|
|
The fields in a
|
|
.Dq Li struct vfsconf
|
|
are defined as follows:
|
|
.Pp
|
|
.Bl -tag -compact -width vfc_refcount
|
|
.It vfc_name
|
|
the name of the filesystem
|
|
.It vfc_typenum
|
|
the filesystem type number assigned by the kernel
|
|
.It vfc_refcount
|
|
the number of active mount points using the filesystem
|
|
.It vfc_flags
|
|
flag bits that are used to initialize a new mount point
|
|
using the filesystem
|
|
.El
|
|
.Sh RETURN VALUES
|
|
.Rv -std getvfsbyname
|
|
.Sh ERRORS
|
|
The following errors may be reported:
|
|
.Bl -tag -width Er
|
|
.It Bq Er EFAULT
|
|
The
|
|
.Fa vfc
|
|
pointer contains an invalid address.
|
|
.It Bq Er ENOENT
|
|
The
|
|
.Fa name
|
|
specifies a filesystem that is unknown or not configured in the kernel.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr mount 2 ,
|
|
.Xr sysctl 3 ,
|
|
.Xr mount 8 ,
|
|
.Xr sysctl 8
|
|
.Sh HISTORY
|
|
A variant of the
|
|
.Fn getvfsbyname
|
|
function first appeared in
|
|
.Fx 2.0 .
|