DragonFly On-Line Manual Pages
GETHOSTID(3) DragonFly Library Functions Manual GETHOSTID(3)
gethostid, sethostid -- get/set unique identifier of current host
Standard C Library (libc, -lc)
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 super-user and is normally
performed at boot time.
The gethostid() function returns the 32-bit identifier for the current
This function has been deprecated. The hostid should be set or retrieved
by use of sysctl(3).
gethostname(3), sysctl(3), sysctl(8)
The gethostid() and sethostid() syscalls appeared in 4.2BSD and were
dropped in 4.4BSD.
32 bits for the identifier is too small.
DragonFly 4.7 November 26, 2016 DragonFly 4.7