hostname revision 166620
1#!/bin/sh 2# 3# Copyright (c) 2003 The FreeBSD Project. All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25# 26# $FreeBSD: head/etc/rc.d/hostname 166620 2007-02-10 13:13:32Z yar $ 27# 28 29# PROVIDE: hostname 30# REQUIRE: mountcritlocal 31# BEFORE: netif 32 33. /etc/rc.subr 34 35name="hostname" 36start_cmd="hostname_start" 37stop_cmd=":" 38 39hostname_start() 40{ 41 # If we are not inside a jail, set the host name if it is not already set. 42 # If we are inside a jail, set the host name even if it is already set, 43 # but first check if it is permitted. 44 # 45 if [ `$SYSCTL_N security.jail.jailed` -eq 1 ]; then 46 if [ `$SYSCTL_N security.jail.set_hostname_allowed` -eq 0 ]; then 47 return 48 fi 49 elif [ -n "`/bin/hostname -s`" ]; then 50 return 51 else 52 # If we're not in a jail and rc.conf doesn't specify a 53 # hostname, see if we can get one from kenv. 54 # 55 if [ -z "${hostname}" -a \ 56 -n "`/bin/kenv dhcp.host-name 2> /dev/null`" ]; then 57 hostname=`/bin/kenv dhcp.host-name` 58 fi 59 fi 60 61 # Have we got a hostname yet? 62 # 63 if [ -z "${hostname}" ]; then 64 warn "\$hostname is not set -- see ${rcvar_manpage}." 65 return 66 fi 67 68 # All right, it is safe to invoke hostname(1) now. 69 # 70 /bin/hostname "${hostname}" 71 echo "Setting hostname: `hostname`." 72} 73 74load_rc_config $name 75run_rc_command "$1" 76