fc733ebccd
This section is based on catpages contributed by Mainichi Communications, Inc. Translated by: MYCOM team Converted by: Japanese Online Manual Project <man-jp@jp.FreeBSD.ORG> Submitted by: Kazuo Horikawa <k-horik@yk.rim.or.jp>
75 lines
2.8 KiB
Groff
75 lines
2.8 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)gethostid.3 8.1 (Berkeley) 6/2/93
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.\"
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.Dd June 2, 1993
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.Dt GETHOSTID 3
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.Os BSD 4.2
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.Sh 名称
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.Nm gethostid ,
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.Nm sethostid
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.Nd 現在のホストの固有の識別子の取得/設定
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.Sh 書式
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.Fd #include <unistd.h>
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.Ft long
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.Fn gethostid void
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.Ft void
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.Fn sethostid "long hostid"
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.Sh 解説
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.Fn sethostid
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は現在のプロセッサの 32 ビット識別子を設定します。
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識別子は現存するすべての UNIX システムのなかで、固有であることが意図されます。
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通常はローカルマシンの DARPA インターネットアドレスです。
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この関数を呼び出せるのはスーパユーザだけで、通常は起動時に実行されます。
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.Pp
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.Fn gethostid
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は、現在のプロセッサの 32 ビット識別子を返します。
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.Pp
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この関数はこれまで非難されてきました。
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hostid の設定および取り出しには
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.Xr sysctl 3
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を使用すべきです。
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.Sh 関連項目
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.Xr gethostname 3 ,
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.Xr sysctl 3 ,
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.Xr sysctl 8
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.Sh バグ
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この識別子が 32 ビットでは小さすぎます。
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.Sh 歴史
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.Fn gethostid
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および
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.Fn sethostid
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システムコールは、
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.Bx 4.2
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で最初に取り入れられ、
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.Bx 4.4
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で打ち切られました。
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