1997-03-03 18:01:01 +00:00
|
|
|
.\" -*- nroff -*-
|
|
|
|
|
.\"
|
|
|
|
|
.\" Copyright (c) 1996 Doug Rabson
|
|
|
|
|
.\"
|
|
|
|
|
.\" All rights reserved.
|
|
|
|
|
.\"
|
|
|
|
|
.\" This program is free software.
|
|
|
|
|
.\"
|
|
|
|
|
.\" 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.
|
|
|
|
|
.\"
|
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``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 DEVELOPERS 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.
|
|
|
|
|
.\"
|
1997-09-29 10:11:02 +00:00
|
|
|
.\" $Id: VOP_PATHCONF.9,v 1.3 1997/04/13 14:48:56 bde Exp $
|
1997-03-03 18:01:01 +00:00
|
|
|
.\"
|
|
|
|
|
.Dd July 24, 1996
|
|
|
|
|
.Os
|
|
|
|
|
.Dt VOP_PATHCONF 9
|
|
|
|
|
.Sh NAME
|
|
|
|
|
.Nm VOP_PATHCONF
|
|
|
|
|
.Nd return POSIX pathconf information
|
|
|
|
|
.Sh SYNOPSIS
|
1997-04-13 14:49:13 +00:00
|
|
|
.Fd #include <sys/param.h>
|
1997-03-03 18:01:01 +00:00
|
|
|
.Fd #include <sys/vnode.h>
|
|
|
|
|
.Fd #include <sys/unistd.h>
|
|
|
|
|
.Ft int
|
|
|
|
|
.Fn VOP_PATHCONF "struct vnode *vp" "int name" "int *retval"
|
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
|
.Pp
|
|
|
|
|
The arguments are:
|
|
|
|
|
.Bl -tag -width retval
|
|
|
|
|
.It Ar vp
|
|
|
|
|
the vnode to get information about
|
|
|
|
|
.It Ar name
|
|
|
|
|
the type of information to return
|
|
|
|
|
.It Ar retval
|
|
|
|
|
the place to return the information
|
|
|
|
|
.El
|
|
|
|
|
.Pp
|
|
|
|
|
The value of
|
|
|
|
|
.Fa name
|
|
|
|
|
specifies what should be returned:
|
|
|
|
|
.Bl -tag -width _PC_CHOWN_RESTRICTED
|
|
|
|
|
.It Dv _PC_LINK_MAX
|
|
|
|
|
The maximum number of links to a file.
|
|
|
|
|
.It Dv _PC_NAME_MAX
|
|
|
|
|
The maximum number of bytes in a file name.
|
|
|
|
|
.It Dv _PC_PATH_MAX
|
|
|
|
|
The maximum number of bytes in a pathname.
|
|
|
|
|
.It Dv _PC_PIPE_BUF
|
|
|
|
|
The maximum number of bytes which will be written atomically to a pipe.
|
|
|
|
|
.It Dv _PC_CHOWN_RESTRICTED
|
|
|
|
|
Return 1 if appropriate privileges are required for the
|
|
|
|
|
.Xr chown 2
|
|
|
|
|
system call, otherwise 0.
|
|
|
|
|
.It Dv _PC_NO_TRUNC
|
|
|
|
|
Return 1 if file names longer than
|
|
|
|
|
.Dv KERN_NAME_MAX
|
|
|
|
|
are truncated.
|
|
|
|
|
.El
|
|
|
|
|
.Sh RETURN VALUES
|
|
|
|
|
If
|
|
|
|
|
.Fa name
|
1997-03-04 06:20:48 +00:00
|
|
|
is recognized,
|
1997-03-03 18:01:01 +00:00
|
|
|
.Fa *retval
|
|
|
|
|
is set to the specified value and zero is returned, otherwise
|
|
|
|
|
.Dv EINVAL
|
|
|
|
|
is returned.
|
|
|
|
|
.Sh SEE ALSO
|
1997-09-29 10:11:02 +00:00
|
|
|
.Xr pathconf 2 ,
|
|
|
|
|
.Xr vnode 9
|
1997-03-03 18:01:01 +00:00
|
|
|
.Sh AUTHORS
|
|
|
|
|
This man page was written by Doug Rabson.
|
|
|
|
|
|
