MirOS Manual: gethostid(3), sethostid(3)

GETHOSTID(3)               BSD Programmer's Manual                GETHOSTID(3)

NAME

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

SYNOPSIS

     #include <unistd.h>

     long
     gethostid(void);

     int
     sethostid(long hostid);

DESCRIPTION

     The sethostid() function establishes a 32-bit identifier for the current
     processor that is intended to be unique among all UNIX systems in ex-
     istence. 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).

HISTORY

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

BUGS

     32 bits for the identifier is too small.

MirOS BSD #10-current            June 2, 1993                                1

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