gethostid man page on OpenBSD

gethostid man page on OpenBSD

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GETHOSTID(3)		  OpenBSD 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
     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
     gethostname(3), sysctl(3), sysctl(8)

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.

OpenBSD 4.9			 May 31, 2007			   OpenBSD 4.9

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