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.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright 1993 Rickard E. Faith (faith@cs.unc.edu)
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Modified 1995-07-22 by Michael Chastain <mec@duracef.shout.net>:
.\" 'gethostname' is real system call on Linux/Alpha.
.\" Modified 1997-01-31 by Eric S. Raymond <esr@thyrsus.com>
.\" Modified 2000-06-04, 2001-12-15 by aeb
.\" Modified 2004-06-17 by mtk
.\"
.\" Japanese Version Copyright (c) 1997 SUTO, Mitsuaki
.\" all rights reserved.
.\" Translated 1997-06-27, SUTO, Mitsuaki <suto@av.crl.sony.co.jp>
.\" Updated 2000-09-30, Yuichi SATO <sato@complex.eng.hokudai.ac.jp>
.\" Updated & Modified 2002-01-14, Yuichi SATO <ysato@h4.dion.ne.jp>
.\" Updated & Modified 2004-12-30, Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated & Modified 2006-01-31, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.TH GETHOSTNAME 2 2007-07-26 "Linux" "Linux Programmer's Manual"
.SH ̾
gethostname, sethostname \- ۥ̾μ
.SH
.B #include <unistd.h>
.sp
.BI "int gethostname(char *" name ", size_t " len );
.br
.BI "int sethostname(const char *" name ", size_t " len );
.sp
.in -4n
glibc εǽޥ
.RB ( feature_test_macros (7)
):
.in
.sp
.ad l
.BR gethostname ():
_BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500
.br
.BR sethostname ():
_BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE\ <\ 500)
.ad b
.SH
ΥƥॳϡߤΥץåΥۥ̾ѹ뤿
Ѥ롣
.BR gethostname ()
ƥॳϡ(
.BR sethostname ()
ꤵ줿) NULL ü줿ۥ̾
Ĺ \fIlen\fP ХȤ \fIname\fP ֤
Ĺ NULL ü줿ۥ̾ʤ硢
顼֤ʤۥ̾ڤͤ롣
ڤͤ줿ۥ̾ NULL ü뤫ɤϻꤵƤʤ
.SH ֤
0 ֤롣Ԥ \-1 ֤ꡢ
.I errno
顼Ƥ˽äꤵ롣
.SH 顼
.TP
.B EFAULT
.I name
ʥɥ쥹Ǥ롣
.TP
.B EINVAL
.I len
Ǥ롣ޤϡ
.BR sethostname ()
ˤ
.I len
Ƥ줿祵ۤƤ롣
ޤϡLinux/i386
.BR gethostname ()
ˤ
.I len
ºݤͤ⾮
(ǸΥǤϡglib 2.1
.B ENAMETOOLONG
֤)
.TP
.B EPERM
.BR sethostname ()
ˤơƤӽФͤ
.B CAP_SYS_ADMIN
ѥӥƥ (capability) äƤʤä
.SH
SVr4, 4.4BSD (Υե 4.2BSD ǽо줷)
POSIX.1-2001 Ǥ
.BR gethostname ()
ˤĤƤϵꤷƤ뤬
.BR sethostname ()
ϵꤷƤʤ
.SH
SUSv2 Ǥϡ֥ۥ̾ 255 ХȤ¤פȤݾڤƤ롣
POSIX.1-2001 Ǥϡ֥ۥ̾ (ü NULL ХȤϴޤޤʤ)
.B HOST_NAME_MAX
ХȤ¤פȤݾڤƤ롣
.SS "glibc Ǥ"
GNU C 饤֥ϡ
.BR gethostname ()
饤֥ؿȤƼƤꡢ
δؿ
.BR uname (2)
ƤӽФ
.BR uname (2)
֤
.I nodename
ե (κ
.I len
Х)
.I name
˥ԡ롣
ԡԤäݤˡδؿ
.I nodename
Ĺ
.I len
ʾ夫γǧԤ
.I len
ʾξˤ \-1 ֤
.I errno
.B ENAMETOOLONG
ꤹ롣
С 2.2 glibc
.\" ʤȤ glibc 2.0 2.1ŤС̤ǧ
Ǥϡ
.I nodename
Ĺ
.I len
ʾξΰۤʤ;
.I len
ʾξˤϡ
.I name
ˤϲ⥳ԡؿ \-1 ֤
.I errno
.B ENAMETOOLONG
ꤹ롣
.SH Ϣ
.BR getdomainname (2),
.BR setdomainname (2),
.BR uname (2)
|
