gethostid
Hurricane Electric Internet Services
NAME
gethostid, sethostid - get or set the unique identifier of
the current host
SYNOPSIS
#include <unistd.h>
long int gethostid(void);
int sethostid(long int hostid)
DESCRIPTION
Get or set a unique 32-bit identifier for the current
machine. The 32-bit identifier is intended to be unique
among all UNIX systems in existence. This normally resem-
bles the Internet address for the local machine, as
returned by gethostbyname(3), and thus usually never needs
to be set.
The sethostid call is restricted to the superuser.
The hostid argument is stored in the file /etc/hostid.
RETURN VALUES
gethostid returns the 32-bit identifier for the current
host as set by sethostid(2).
CONFORMING TO
POSIX.1 does not define these functions, but ISO/IEC
9945-1:1990 mentions them in B.4.4.1.
FILES
/etc/hostid
SEE ALSO
hostid(1), gethostbyname(3)
Hurricane Electric Internet Services
Copyright (C) 1998
Hurricane Electric.
All Rights Reserved.