gethostid(2)                  4 BSD                  gethostid(2)



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

SYNOPSIS
     hostid = gethostid ()
     int hostid;

     sethostid (hostid)
     int hostid;

DESCRIPTION
     sethostid establishes a 32-bit identifier for the current
     processor which is intended to be unique among all UNIX sys-
     tems 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.

     gethostid returns the 32-bit identifier for the current pro-
     cessor.

NOTE
     Two versions of gethostid may be accessed.  The first ver-
     sion is the proprietary CX system call which directly
     accesses the kernel.  The other version is defined in the
     88open Object Compatibility Standard Networking Supplement
     (OCSNS) which is implemented within the C library and
     accesses the kernel only through system calls defined in the
     Binary Compatibility Standard (BCS).  The OCSNS version is
     accessed through specific OCS options passed to cc(1) and/or
     ld(1).

SEE ALSO
     gethostname(2)





















Page 1                        CX/UX Programmer's Reference Manual