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# 27 28# PROVIDE: hostname 29# REQUIRE: FILESYSTEMS 30# BEFORE: netif 31 32. /etc/rc.subr 33. /etc/network.subr 34 35name="hostname" 36desc="Set the system\'s hostname" 37start_cmd="hostname_start" 38stop_cmd=":" 39 40hostname_start() 41{ 42 # If we are not inside a jail, set the host name. 43 # If we are inside a jail, set the host name 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 else 50 # If we're not in a jail and rc.conf doesn't specify a 51 # hostname, see if we can get one from kenv. 52 # 53 if [ -z "${hostname}" -a \ 54 -n "`/bin/kenv dhcp.host-name 2> /dev/null`" ]; then 55 hostname=`/bin/kenv dhcp.host-name` 56 fi 57 fi 58 59 # Have we got a hostname yet? 60 # 61 if [ -z "${hostname}" ]; then 62 # Null hostname is probably OK if DHCP is in use, 63 # or when hostname is already set (common for jails). 64 # 65 if [ -z "`list_net_interfaces dhcp`" -a \ 66 -z "`/bin/hostname`" ]; then 67 warn "\$hostname is not set -- see rc.conf(5)." 68 fi 69 return 70 fi 71 72 # All right, it is safe to invoke hostname(1) now. 73 # 74 startmsg -n "Setting hostname: ${hostname}" 75 /bin/hostname "${hostname}" 76 startmsg '.' 77} 78 79load_rc_config $name 80run_rc_command "$1" 81