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	1	.\" Copyright (c) 1983, 1991, 1993
	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
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	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	.\"
	32	.\" @(#)gethostname.3 8.1 (Berkeley) 6/4/93
	33	.\" $FreeBSD: src/lib/libc/gen/getdomainname.3,v 1.9.2.5 2001/12/14 18:33:51 ru Exp $
	34	.\" $DragonFly: src/lib/libc/gen/getdomainname.3,v 1.4 2006/05/26 19:39:36 swildner Exp $
	35	.\"
	36	.Dd May 6, 1994
	37	.Dt GETDOMAINNAME 3
	38	.Os
	39	.Sh NAME
	40	.Nm getdomainname ,
	41	.Nm setdomainname
	42	.Nd get/set domain name of current host
	43	.Sh LIBRARY
	44	.Lb libc
	45	.Sh SYNOPSIS
	46	.In unistd.h
	47	.Ft int
	48	.Fn getdomainname "char *name" "int namelen"
	49	.Ft int
	50	.Fn setdomainname "const char *name" "int namelen"
	51	.Sh DESCRIPTION
	52	.Fn Getdomainname
	53	returns the standard domain name for the current processor, as
	54	previously set by
	55	.Fn setdomainname .
	56	The parameter
	57	.Fa namelen
	58	specifies the size of the
	59	.Fa name
	60	array. The returned name is null-terminated unless insufficient
	61	space is provided.
	62	.Pp
	63	.Fn Setdomainname
	64	sets the domain name of the host machine to be
	65	.Fa name ,
	66	which has length
	67	.Fa namelen .
	68	This call is restricted to the super-user and
	69	is normally used only when the system is bootstrapped.
	70	.Sh RETURN VALUES
	71	.Rv -std
	72	.Sh ERRORS
	73	The following errors may be returned by these calls:
	74	.Bl -tag -width Er
	75	.It Bq Er EFAULT
	76	The
	77	.Fa name
	78	or
	79	.Fa namelen
	80	parameter gave an
	81	invalid address.
	82	.It Bq Er EPERM
	83	The caller tried to set the hostname and was not the super-user.
	84	.El
	85	.Sh SEE ALSO
	86	.Xr gethostid 3 ,
	87	.Xr gethostname 3 ,
	88	.Xr sysctl 3
	89	.Sh HISTORY
	90	The
	91	.Fn getdomainname
	92	function call appeared in
	93	.Bx 4.2 .
	94	.Sh BUGS
	95	Domain names are limited to
	96	.Dv MAXHOSTNAMELEN
	97	(from
	98	.In sys/param.h )
	99	characters, currently 256.