11.13Sabs/*	$NetBSD: setdomainname.c,v 1.13 2012/06/25 22:32:43 abs Exp $	*/
21.2Scgd
31.1Scgd/*
41.1Scgd * Copyright (c) 1989, 1993
51.1Scgd *	The Regents of the University of California.  All rights reserved.
61.1Scgd *
71.1Scgd * Redistribution and use in source and binary forms, with or without
81.1Scgd * modification, are permitted provided that the following conditions
91.1Scgd * are met:
101.1Scgd * 1. Redistributions of source code must retain the above copyright
111.1Scgd *    notice, this list of conditions and the following disclaimer.
121.1Scgd * 2. Redistributions in binary form must reproduce the above copyright
131.1Scgd *    notice, this list of conditions and the following disclaimer in the
141.1Scgd *    documentation and/or other materials provided with the distribution.
151.12Sagc * 3. Neither the name of the University nor the names of its contributors
161.1Scgd *    may be used to endorse or promote products derived from this software
171.1Scgd *    without specific prior written permission.
181.1Scgd *
191.1Scgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
201.1Scgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
211.1Scgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
221.1Scgd * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
231.1Scgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
241.1Scgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
251.1Scgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
261.1Scgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
271.1Scgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
281.1Scgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
291.1Scgd * SUCH DAMAGE.
301.1Scgd */
311.1Scgd
321.5Schristos#include <sys/cdefs.h>
331.1Scgd#if defined(LIBC_SCCS) && !defined(lint)
341.2Scgd#if 0
351.2Scgdstatic char sccsid[] = "@(#)sethostname.c	8.1 (Berkeley) 6/4/93";
361.2Scgd#else
371.13Sabs__RCSID("$NetBSD: setdomainname.c,v 1.13 2012/06/25 22:32:43 abs Exp $");
381.2Scgd#endif
391.1Scgd#endif /* LIBC_SCCS and not lint */
401.1Scgd
411.6Sjtc#include "namespace.h"
421.1Scgd#include <sys/param.h>
431.1Scgd#include <sys/sysctl.h>
441.9Slukem
451.9Slukem#include <assert.h>
461.9Slukem#include <errno.h>
471.5Schristos#include <unistd.h>
481.6Sjtc
491.6Sjtc#ifdef __weak_alias
501.11Smycroft__weak_alias(setdomainname,_setdomainname)
511.6Sjtc#endif
521.1Scgd
531.4Sjtcint
541.13Sabssetdomainname(const char *name, size_t namelen)
551.1Scgd{
561.1Scgd	int mib[2];
571.9Slukem
581.9Slukem	_DIAGASSERT(name != NULL);
591.1Scgd
601.1Scgd	mib[0] = CTL_KERN;
611.1Scgd	mib[1] = KERN_DOMAINNAME;
621.8Schristos	if (sysctl(mib, 2, NULL, NULL, name, namelen) == -1)
631.1Scgd		return (-1);
641.1Scgd	return (0);
651.1Scgd}
66