Expand PMF_FN_* macros.
[netbsd-mini2440.git] / external / bsd / openresolv / dist / dnsmasq.in
blobe9d1f5183fd166970a2d00d27b115ad41beeee8d
1 #!/bin/sh
2 # Copyright (c) 2007-2009 Roy Marples
3 # All rights reserved
5 # dnsmasq subscriber for resolvconf
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.
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.
29 [ -f "@SYSCONFDIR@"/resolvconf.conf ] || exit 0
30 . "@SYSCONFDIR@/resolvconf.conf" || exit 1
31 [ -z "$dnsmasq_conf" -a -z "$dnsmasq_resolv" ] && exit 0
32 [ -z "$RESOLVCONF" ] && eval "$(@PREFIX@/sbin/resolvconf -v)"
34 : ${dnsmasq_pid:=/var/run/dnsmasq.pid}
35 : ${dnsmasq_restart:=@RESTARTCMD dnsmasq@}
36 newconf="# Generated by resolvconf\n"
37 newresolv="$newconf"
39 # Using dbus means that we never have to restart the daemon
40 # This is important as it means we should not drop DNS queries
41 # whilst changing DNS options around. However, dbus support is optional
42 # so we need to validate a few things first.
43 # Check for DBus support in the binary
44 dbus=false
45 : ${dbus_pid:=/var/run/dbus/dbus.pid}
46 [ -s "$dbus_pid" ] || dbus_pid=/var/run/dbus.pid
47 [ -s "$dbus_pid" ] || dbus_pid=/var/run/dbus/pid
48 if [ -s "$dbus_pid" -a -s "$dnsmasq_pid" ]; then
49 if dnsmasq --version 2>/dev/null | \
50 grep -q "^Compile time options.*[[:space:]]DBus[[:space:]]"
51 then
52 # Sanity - check that dnsmasq and dbus are running
53 if kill -0 $(cat "$dbus_pid") 2>/dev/null && \
54 kill -0 $(cat "$dnsmasq_pid") 2>/dev/null
55 then
56 dbus=true
57 newconf="$newconf\n# Domain specific servers will"
58 newconf="$newconf be sent over dbus\nenable-dbus\n"
63 for n in $NAMESERVERS; do
64 newresolv="${newresolv}nameserver $n\n"
65 done
67 dbusdest=
68 for d in $DOMAINS; do
69 dn="${d%%:*}"
70 ns="${d#*:}"
71 while [ -n "$ns" ]; do
72 if $dbus; then
73 SIFS=${IFS-y} OIFS=$IFS
74 IFS=.
75 set -- ${ns%%,*}
76 num="0x$(printf "%02x" $1 $2 $3 $4)"
77 if [ "$SIFS" = yi ]; then
78 unset IFS
79 else
80 IFS=$OIFS
82 dbusdest="$dbusdest uint32:$(printf "%u" $num)"
83 dbusdest="$dbusdest string:$dn"
84 else
85 newconf="${newconf}server=/$dn/${ns%%,*}\n"
87 [ "$ns" = "${ns#*,}" ] && break
88 ns="${ns#*,}"
89 done
90 done
92 changed=false
93 if [ -n "$dnsmasq_conf" ]; then
94 if [ ! -f "$dnsmasq_conf" ] || \
95 [ "$(cat "$dnsmasq_conf")" != "$(printf "$newconf")" ]
96 then
97 changed=true
98 printf "$newconf" >"$dnsmasq_conf"
101 if [ -n "$dnsmasq_resolv" ]; then
102 if [ -f "$dnsmasq_resolv" ]; then
103 if [ "$(cat "$dnsmasq_resolv")" != "$(printf "$newresolv")" ]
104 then
105 changed=true
106 printf "$newresolv" >"$dnsmasq_resolv"
108 else
109 # dnsmasq polls this file so no need to set changed=true
110 printf "$newresolv" >"$dnsmasq_resolv"
114 if $changed; then
115 eval $dnsmasq_restart
117 if $dbus; then
118 $changed || kill -HUP $(cat "$dnsmasq_pid")
119 # Send even if empty so old servers are cleared
120 dbus-send --system --dest=uk.org.thekelleys.dnsmasq \
121 /uk/org/thekelleys/dnsmasq uk.org.thekelleys.SetServers \
122 $dbusdest