gethostid(2)
NAME
gethostid, sethostid − get/set unique identifier of current host
SYNTAX
hostid = gethostid()
int hostid;
sethostid(hostid)
int hostid;
DESCRIPTION
The sethostid system call establishes a 32-bit identifier for the current processor which 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 super-user and is normally performed at boot time.
The gethostid system call returns the 32-bit identifier for the current processor.