projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b2abdfb | 1 | .\" Copyright (c) 1983, 1991, 1993 |
| e9ce8d39 A |
2 | .\" The Regents of the University of California. All rights reserved. |
| 3 | .\" | |
| 4 | .\" Redistribution and use in source and binary forms, with or without | |
| 5 | .\" modification, are permitted provided that the following conditions | |
| 6 | .\" are met: | |
| 7 | .\" 1. Redistributions of source code must retain the above copyright | |
| 8 | .\" notice, this list of conditions and the following disclaimer. | |
| 9 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
| 10 | .\" notice, this list of conditions and the following disclaimer in the | |
| 11 | .\" documentation and/or other materials provided with the distribution. | |
| 12 | .\" 3. All advertising materials mentioning features or use of this software | |
| 13 | .\" must display the following acknowledgement: | |
| 14 | .\" This product includes software developed by the University of | |
| 15 | .\" California, Berkeley and its contributors. | |
| 16 | .\" 4. Neither the name of the University nor the names of its contributors | |
| 17 | .\" may be used to endorse or promote products derived from this software | |
| 18 | .\" without specific prior written permission. | |
| 19 | .\" | |
| 20 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 21 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 22 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 23 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 24 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 25 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 26 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 27 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 28 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 29 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 30 | .\" SUCH DAMAGE. | |
| 31 | .\" | |
| 5b2abdfb A |
32 | .\" @(#)gethostid.3 8.1 (Berkeley) 6/2/93 |
| 33 | .\" $FreeBSD: src/lib/libc/compat-43/gethostid.3,v 1.5.2.5 2001/12/14 18:33:49 ru Exp $ | |
| e9ce8d39 | 34 | .\" |
| 5b2abdfb A |
35 | .Dd June 2, 1993 |
| 36 | .Dt GETHOSTID 3 | |
| e9ce8d39 A |
37 | .Os |
| 38 | .Sh NAME | |
| 5b2abdfb A |
39 | .Nm gethostid , |
| 40 | .Nm sethostid | |
| 41 | .Nd get/set unique identifier of current host | |
| e9ce8d39 A |
42 | .Sh LIBRARY |
| 43 | .Lb libc | |
| 44 | .Sh SYNOPSIS | |
| 5b2abdfb A |
45 | .In unistd.h |
| 46 | .Ft long | |
| 47 | .Fn gethostid void | |
| 48 | .Ft void | |
| 49 | .Fn sethostid "long hostid" | |
| e9ce8d39 | 50 | .Sh DESCRIPTION |
| 5b2abdfb A |
51 | .Fn Sethostid |
| 52 | establishes a 32-bit identifier for the | |
| 53 | current processor that is intended to be unique among all | |
| 54 | UNIX systems in existence. This is normally a DARPA Internet | |
| 55 | address for the local machine. This call is allowed only to the | |
| 56 | super-user and is normally performed at boot time. | |
| 57 | .Pp | |
| 58 | .Fn Gethostid | |
| 59 | returns the 32-bit identifier for the current processor. | |
| 60 | .Pp | |
| 61 | This function has been deprecated. | |
| 62 | The hostid should be set or retrieved by use of | |
| 63 | .Xr sysctl 3 . | |
| e9ce8d39 | 64 | .Sh SEE ALSO |
| 5b2abdfb A |
65 | .Xr gethostname 3 , |
| 66 | .Xr sysctl 3 , | |
| 67 | .Xr sysctl 8 | |
| 68 | .Sh BUGS | |
| 69 | 32 bits for the identifier is too small. | |
| e9ce8d39 A |
70 | .Sh HISTORY |
| 71 | The | |
| 5b2abdfb A |
72 | .Fn gethostid |
| 73 | and | |
| 74 | .Fn sethostid | |
| 75 | syscalls appeared in | |
| 76 | .Bx 4.2 | |
| 77 | and were dropped in | |
| e9ce8d39 | 78 | .Bx 4.4 . |