81 lines
2.5 KiB
Bash
Executable File
81 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2003 The FreeBSD Project. 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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#
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# THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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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# $FreeBSD$
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#
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# PROVIDE: hostname
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# REQUIRE: FILESYSTEMS
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# BEFORE: netif
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. /etc/rc.subr
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. /etc/network.subr
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name="hostname"
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start_cmd="hostname_start"
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stop_cmd=":"
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hostname_start()
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{
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# If we are not inside a jail, set the host name if it is not already set.
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# If we are inside a jail, set the host name even if it is already set,
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# but first check if it is permitted.
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#
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if [ `$SYSCTL_N security.jail.jailed` -eq 1 ]; then
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if [ `$SYSCTL_N security.jail.set_hostname_allowed` -eq 0 ]; then
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return
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fi
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elif [ -n "`/bin/hostname -s`" ]; then
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return
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else
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# If we're not in a jail and rc.conf doesn't specify a
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# hostname, see if we can get one from kenv.
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#
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if [ -z "${hostname}" -a \
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-n "`/bin/kenv dhcp.host-name 2> /dev/null`" ]; then
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hostname=`/bin/kenv dhcp.host-name`
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fi
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fi
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# Have we got a hostname yet?
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#
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if [ -z "${hostname}" ]; then
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# Null hostname is probably OK if DHCP is in use.
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#
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if [ -z "`list_net_interfaces dhcp`" ]; then
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warn "\$hostname is not set -- see ${rcvar_manpage}."
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fi
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return
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fi
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# All right, it is safe to invoke hostname(1) now.
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#
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[ -z "${rc_quiet}" ] && echo "Setting hostname: ${hostname}."
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/bin/hostname "${hostname}"
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}
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load_rc_config $name
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run_rc_command "$1"
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