unbound.in revision 225524 
1#!/bin/sh
2# Copyright (c) 2009 Roy Marples
3# All rights reserved
4
5# unbound subscriber for resolvconf
6
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10#     * Redistributions of source code must retain the above copyright
11#       notice, this list of conditions and the following disclaimer.
12#     * Redistributions in binary form must reproduce the above
13#       copyright notice, this list of conditions and the following
14#       disclaimer in the documentation and/or other materials provided
15#       with the distribution.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29[ -f "@SYSCONFDIR@"/resolvconf.conf ] || exit 0
30. "@SYSCONFDIR@/resolvconf.conf" || exit 1
31[ -z "$unbound_conf" ] && exit 0
32[ -z "$RESOLVCONF" ] && eval "$(@PREFIX@/sbin/resolvconf -v)"
33NL="
34"
35
36: ${unbound_pid:=/var/run/unbound.pid}
37: ${unbound_service:=unbound}
38: ${unbound_restart:=@RESTARTCMD ${unbound_service}@}
39newconf="# Generated by resolvconf$NL"
40
41for d in $DOMAINS; do
42	dn="${d%%:*}"
43	ns="${d#*:}"
44	newconf="$newconf${NL}forward-zone:$NL	name: \"$dn\"$NL"
45	while [ -n "$ns" ]; do
46		newconf="$newconf	forward-addr: ${ns%%,*}$NL"
47		[ "$ns" = "${ns#*,}" ] && break
48		ns="${ns#*,}"
49	done
50done
51
52if [ -n "$NAMESERVERS" ]; then
53	newconf="$newconf${NL}forward-zone:$NL	name: \".\"$NL"
54	for n in $NAMESERVERS; do
55		newconf="$newconf	forward-addr: $n$NL"
56	done
57fi
58
59if [ ! -f "$unbound_conf" ] || \
60	[ "$(cat "$unbound_conf")" != "$(printf %s "$newconf")" ]
61then
62	printf %s "$newconf" >"$unbound_conf"
63	# If we can't sent a HUP then force a restart
64	if [ -s "$unbound_pid" ]; then
65		if ! kill -HUP $(cat "$unbound_pid") 2>/dev/null; then
66			eval $unbound_restart
67		fi
68	else
69		eval $unbound_restart
70	fi
71fi
72