NetBSD/lib/libc/compat-43/gethostid.3

.\"	$NetBSD: gethostid.3,v 1.7 1999/03/22 19:44:36 garbled Exp $
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.\"     @(#)gethostid.3	8.1 (Berkeley) 6/2/93
.\"
.Dd June 2, 1993
.Dt GETHOSTID 3
.Os
.Sh NAME
.Nm gethostid ,
.Nm sethostid
.Nd get/set unique identifier of current host
.Sh LIBRARY
.Lb libc
.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
.Ux
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.
.Pp
This function has been deprecated.
The hostid should be set or retrieved by use of
.Xr sysctl 3 .
.Sh SEE ALSO
.Xr sysctl 3 ,
.Xr gethostname 3 ,
.Xr sysctl 8 .
.Sh BUGS
32 bits for the identifier is too small.
.Sh HISTORY
The
.Fn gethostid
and
.Fn sethostid
syscalls appeared in 
.Bx 4.2
and were dropped in
.Bx 4.4 .