68 lines
2.7 KiB
Groff
68 lines
2.7 KiB
Groff
.\" Copyright (c) 1983, 1991 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.
|
|
.\"
|
|
.\" from: @(#)gethostid.2 6.6 (Berkeley) 3/10/91
|
|
.\" $Id: gethostid.2,v 1.3 1993/11/25 00:38:52 jtc Exp $
|
|
.\"
|
|
.Dd March 10, 1991
|
|
.Dt GETHOSTID 2
|
|
.Os BSD 4.2
|
|
.Sh NAME
|
|
.Nm gethostid ,
|
|
.Nm sethostid
|
|
.Nd get/set unique identifier of current host
|
|
.Sh SYNOPSIS
|
|
.Fd #include <unistd.h>
|
|
.Ft long
|
|
.Fn gethostid void
|
|
.Ft int
|
|
.Fn sethostid "long hostid"
|
|
.Sh DESCRIPTION
|
|
.Fn Sethostid
|
|
establishes a 32-bit identifier for the
|
|
current processor that is intended to be unique among all
|
|
UNIX systems in existence. This is normally a DARPA Internet
|
|
address for the local machine. This call is allowed only to the
|
|
super-user and is normally performed at boot time.
|
|
.Pp
|
|
.Fn Gethostid
|
|
returns the 32-bit identifier for the current processor.
|
|
.Sh SEE ALSO
|
|
.Xr hostid 1 ,
|
|
.Xr gethostname 2
|
|
.Sh BUGS
|
|
32 bits for the identifier is too small.
|
|
.Sh HISTORY
|
|
The
|
|
.Fn gethostid
|
|
function call appeared in
|
|
.Bx 4.2 .
|