gethostid.2

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· 2 代码 · 共 34 行

.\" SCCSID: @(#)gethostid.2	8.1	9/11/90
.TH gethostid 2
.SH Name
gethostid, sethostid \- get or set the unique identifier of the current host
.SH Syntax
.nf
.ft B
hostid = gethostid()
int hostid;
.PP
.ft B
sethostid(hostid)
int hostid;
.fi
.SH Description
.NXR "gethostid system call"
.NXR "sethostid system call"
.NXA "gethostid system call" "getpid system call"
.NXR "host ID" "getting"
.NXR "host ID" "setting"
The
.PN sethostid
system call 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.
.SH Return Values
The
.PN gethostid
system call returns the 32-bit identifier for the current processor.
.SH See Also
hostid(1), gethostname(2)