NAME    [Toc]    [Back]

     gethostid, sethostid - get/set unique identifier of  current
host

SYNOPSIS    [Toc]    [Back]

     #include <unistd.h>

     long
     gethostid(void);

     int
     sethostid(long hostid);

DESCRIPTION    [Toc]    [Back]

     The sethostid() function 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 superuser and  is  normally
performed at
     boot-time.

     gethostid()  returns  the  32-bit identifier for the current
processor.

     This function has been deprecated.  The hostid should be set
or retrieved
     by use of sysctl(3).

SEE ALSO    [Toc]    [Back]

     gethostname(3), sysctl(3), sysctl(8)

HISTORY    [Toc]    [Back]

     The  gethostid() and sethostid() syscalls appeared in 4.2BSD
and were
     dropped in 4.4BSD.

BUGS    [Toc]    [Back]

     32 bits for the identifier is too small.

OpenBSD      3.6                           June      2,      1993