xref: /freebsd/libexec/rc/rc.d/resolv (revision 22cf89c938886d14f5796fc49f9f020c23ea8eaf)
1#!/bin/sh
2#
3# Copyright (c) 1999  Matt Dillon
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27#
28
29# PROVIDE: resolv
30# REQUIRE: netif FILESYSTEMS
31# KEYWORD: nojail
32
33. /etc/rc.subr
34
35name="resolv"
36rcvar="resolv_enable"
37desc="Create /etc/resolv.conf from kenv"
38start_cmd="${name}_start"
39stop_cmd=':'
40
41# if the info is available via dhcp/kenv
42# build the resolv.conf
43#
44resolv_start()
45{
46	if [ -n "`/bin/kenv dhcp.domain-name-servers 2> /dev/null`" ]; then
47		interface="`/bin/kenv boot.netif.name`"
48		(
49		if [ -n "`/bin/kenv dhcp.domain-name 2> /dev/null`" ]; then
50			echo domain `/bin/kenv dhcp.domain-name`
51		fi
52
53		set -- `/bin/kenv dhcp.domain-name-servers`
54		for ns in `IFS=','; echo $*`; do
55			echo nameserver $ns
56		done
57		) | /sbin/resolvconf -a ${interface}:dhcp4
58	fi
59}
60
61load_rc_config $name
62run_rc_command "$1"
63