opensolaris man page for gethostid

gethostid(3C)						   Standard C Library Functions 					     gethostid(3C)

NAME
       gethostid - get an identifier for the current host

SYNOPSIS
       #include <unistd.h>

       long gethostid(void);

DESCRIPTION
       The  gethostid()  function  returns the 32-bit identifier for the current host. If the hardware capability exists, this identifier is taken
       from platform-dependent stable storage; otherwise it is a randomly generated number. It is not guaranteed to be unique.

       If the calling thread's process is executing within a non-global zone that emulates a host identifier, then the zone's emulated 32-bit host
       identifier is returned.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+
       |Standard		     |See standards(5). 	   |
       +-----------------------------+-----------------------------+

SEE ALSO
       hostid(1), sysinfo(2), attributes(5), standards(5), zones(5)

SunOS 5.11							    29 Jan 2009 						     gethostid(3C)