Release openresolv-3.4.5
[openresolv] / unbound.in
1 #!/bin/sh
2 # Copyright (c) 2009-2011 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)"
33 NL="
34 "
35
36 : ${unbound_pid:=/var/run/unbound.pid}
37 : ${unbound_service:=unbound}
38 : ${unbound_restart:=@RESTARTCMD ${unbound_service}@}
39 newconf="# Generated by resolvconf$NL"
40
41 for 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="${ns#*,}"
49         done
50 done
51
52 if [ -n "$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
57 fi
58
59 # Try to ensure that config dirs exist
60 if type config_mkdirs >/dev/null 2>&1; then
61         config_mkdirs "$unbound_conf"
62 else
63         @PREFIX@/sbin/resolvconf -D "$unbound_conf"
64 fi
65
66 if [ ! -f "$unbound_conf" ] || \
67         [ "$(cat "$unbound_conf")" != "$(printf %s "$newconf")" ]
68 then
69         printf %s "$newconf" >"$unbound_conf"
70         # If we can't sent a HUP then force a restart
71         if [ -s "$unbound_pid" ]; then
72                 if ! kill -HUP $(cat "$unbound_pid") 2>/dev/null; then
73                         eval $unbound_restart
74                 fi
75         else
76                 eval $unbound_restart
77         fi
78 fi