b6cbf7203b
This patch imports the unmodified current version of NetBSD libc. The NetBSD includes are in /nbsd_include, while the libc code itself is split between lib/nbsd_libc and common/lib/libc.
102 lines
3.1 KiB
Groff
102 lines
3.1 KiB
Groff
.\" $NetBSD: gethostname.3,v 1.17 2006/02/07 18:59:56 wiz Exp $
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.\"
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.\" 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. 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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.\" @(#)gethostname.3 8.1 (Berkeley) 6/4/93
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.\"
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.Dd October 14, 2005
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.Dt GETHOSTNAME 3
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.Os
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.Sh NAME
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.Nm gethostname ,
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.Nm sethostname
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.Nd get/set name of current host
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In unistd.h
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.Ft int
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.Fn gethostname "char *name" "size_t namelen"
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.Ft int
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.Fn sethostname "const char *name" "size_t namelen"
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.Sh DESCRIPTION
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.Fn gethostname
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returns the standard host name for the current processor, as
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previously set by
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.Fn sethostname .
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The parameter
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.Fa namelen
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specifies the size of the
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.Fa name
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array.
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The returned name is null-terminated unless insufficient
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space is provided.
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.Pp
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.Fn sethostname
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sets the name of the host machine to be
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.Fa name ,
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which has length
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.Fa namelen .
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This call is restricted to the super-user and
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is normally used only when the system is bootstrapped.
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.Sh RETURN VALUES
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If the call succeeds a value of 0 is returned.
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If the call fails, a value of \-1 is returned and an error code is
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placed in the global location
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.Va errno .
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.Sh ERRORS
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If the
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.Fn gethostname
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or
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.Fn sethostname
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functions fail,
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they will set
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.Va errno
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for any of the errors specified for the routine
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.Xr sysctl 3 .
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.Sh SEE ALSO
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.Xr gethostid 3 ,
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.Xr sysctl 3 ,
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.Xr sysctl 8
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.Sh STANDARDS
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The
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.Fn gethostname
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function conforms to
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.St -xpg4.2 .
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.Sh HISTORY
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The
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.Nm
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function call appeared in
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.Bx 4.2 .
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.Sh BUGS
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Host names are limited to
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.Dv MAXHOSTNAMELEN
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(from
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.Ao Pa sys/param.h Ac )
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characters including null-termination, currently 256.
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