HardenedBSD/unbound.in

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2011-03-18 11:35:54 +01:00
#!/bin/sh
# Copyright (c) 2009 Roy Marples
# All rights reserved
# unbound subscriber for resolvconf
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
[ -f "@SYSCONFDIR@"/resolvconf.conf ] || exit 0
. "@SYSCONFDIR@/resolvconf.conf" || exit 1
[ -z "$unbound_conf" ] && exit 0
[ -z "$RESOLVCONF" ] && eval "$(@PREFIX@/sbin/resolvconf -v)"
: ${unbound_pid:=/var/run/unbound.pid}
: ${unbound_service:=unbound}
: ${unbound_restart:=@RESTARTCMD ${unbound_service}@}
newconf="# Generated by resolvconf\n"
for d in $DOMAINS; do
dn="${d%%:*}"
ns="${d#*:}"
newconf="${newconf}\nforward-zone:\n\tname: \"$dn\"\n"
while [ -n "$ns" ]; do
newconf="${newconf}\tforward-addr: ${ns%%,*}\n"
[ "$ns" = "${ns#*,}" ] && break
ns="${ns#*,}"
done
done
if [ -n "$NAMESERVERS" ]; then
newconf="${newconf}\nforward-zone:\n\tname: \".\"\n"
for n in $NAMESERVERS; do
newconf="${newconf}\tforward-addr: $n\n"
done
fi
if [ ! -f "$unbound_conf" ] || \
[ "$(cat "$unbound_conf")" != "$(printf "$newconf")" ]
then
printf "$newconf" >"$unbound_conf"
# If we can't sent a HUP then force a restart
if [ -s "$unbound_pid" ]; then
if ! kill -HUP $(cat "$unbound_pid") 2>/dev/null; then
eval $unbound_restart
fi
else
eval $unbound_restart
fi
fi