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|
#!/bin/sh
#
# pdnsd
set +e # Don't exit on error status
NAME="pdnsd"
DESC="proxy DNS server"
DAEMON="/usr/sbin/pdnsd"
PIDFILE="/var/run/pdnsd.pid"
CACHE="/var/cache/pdnsd/pdnsd.cache"
[ -x "$DAEMON" ] || exit 0
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
[ -r "/etc/default/$NAME" ] || exit 0
. "/etc/default/$NAME"
gen_cache () {
set -e
if [ -f "$CACHE" ]; then
CACHE_SIZE=$(LANG=C ls -l "$CACHE" | awk '{ print $5; }')
if expr $CACHE_SIZE '<' 4 > /dev/null; then
echo -n " (regenerating cache..."
dd if=/dev/zero of="$CACHE" bs=1 count=4 2> /dev/null
chown pdnsd.proxy "$CACHE"
echo -n "done)"
fi
else
echo -n " (generating cache..."
mkdir -p /var/cache/pdnsd
dd if=/dev/zero of="$CACHE" bs=1 count=4 2> /dev/null
chown -R pdnsd.proxy /var/cache/pdnsd
echo -n "done)"
fi
set +e
return 0
}
start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon --start --quiet --pidfile "$PIDFILE" --exec "$DAEMON" --test > /dev/null || return 1
start-stop-daemon --start --quiet --pidfile "$PIDFILE" --exec "$DAEMON" -- \
--daemon -p "$PIDFILE" $START_OPTIONS \
|| return 2
}
start_resolvconf()
{
if [ -x /sbin/resolvconf ] ; then
echo "nameserver 127.0.0.1" | /sbin/resolvconf -a "lo.$NAME"
fi
return 0
}
stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile "$PIDFILE" --name "$NAME"
RETVAL="$?"
[ "$RETVAL" = 2 ] && return 2
# Wait for children to finish too
start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec "$DAEMON" > /dev/null
[ "$?" = 2 ] && return 2
rm -f "$PIDFILE"
return "$RETVAL"
}
stop_resolvconf()
{
if [ -x /sbin/resolvconf ] ; then
/sbin/resolvconf -d "lo.$NAME"
fi
return 0
}
case "$1" in
start)
echo -n "Starting $DESC: $NAME"
gen_cache
start
case "$?" in
0)
echo "."
start_resolvconf
exit 0
;;
1)
echo " (already running)."
exit 0
;;
*)
echo " (failed)."
exit 1
;;
esac
;;
stop)
stop_resolvconf
echo -n "Stopping $DESC: $NAME"
stop
case "$?" in
0) echo "." ; exit 0 ;;
1) echo " (not running)." ; exit 0 ;;
*) echo " (failed)." ; exit 1 ;;
esac
;;
restart|force-reload)
stop_resolvconf
echo -n "Restarting $DESC: $NAME"
stop
case "$?" in
0|1)
start
case "$?" in
0)
echo "."
start_resolvconf
exit 0
;;
1)
echo " (failed -- old process is still running)."
exit 1
;;
*)
echo " (failed to start)."
exit 1
;;
esac
;;
*)
echo " (failed to stop)."
exit 1
;;
esac
;;
*)
echo "Usage: /etc/init.d/$NAME {start|stop|restart|force-reload}" >&2
exit 3
;;
esac
|
