#!/bin/sh
PROGNAME=`basename $0`

################################################################################
#									       #
#				START.DIP				       #
#									       #
#	Connect to SLIP server, perform rerouting, mail checks and 	       #
#	start the transfer of mail and news in both directions.	Also	       #
#       watch the line for inactivity and disconnect if inactive for           #
#       3 minutes.                                                             #
#									       #
################################################################################

#  Without this line to redirect all output this script will not work under 
#  cron
exec > /dev/null 2>&1

#  Also note that this script gets a bit confused if the cron interval is too
#  close. It shouldn't, but it does :-(

#  Check stat file and lock if necessary
echo "$PROGNAME: INFO: checking request status"
GETSLIPSTAT=/usr/local/bin/get_slip_stat
[ `$GETSLIPSTAT` != P ] && exit 1
echo "$PROGNAME: INFO: locking with T $$"
$GETSLIPSTAT -w T $$

#  Option -nonews will suppress collection of news
GETNEWS=true; [ "X$1" = "X-nonews" ] && GETNEWS=""

echo "$PROGNAME: INFO: Calling SLIP server ... "
/usr/local/src/dip/dip /homes/ops/lib/demon.dip
[ $? -ne 0 ] && exit 1

#  Change routing information
echo "$PROGNAME: INFO: Changing routing tables ... "
/etc/route del gate.demon.co.uk
/etc/route add default gw gate.demon.co.uk
DIPPID=`ps -axe | grep demon.dip | grep -v grep | awk '{ print $1 }'`
echo "$PROGNAME: INFO: dip process started - $DIPPID"
$GETSLIPSTAT -w C $DIPPID
$GETSLIPSTAT -m | wall
sleep 2

#  Watch the line for time outs
echo "$PROGNAME: INFO: Watching line activity ... "
(  
    slip_idle -t 180
    $GETSLIPSTAT -m | wall
) &

#  Deliver outgoing queued messages
echo "$PROGNAME: INFO: Delivering outgoing mail ... "
/usr/lib/sendmail -q

# Now deal with outgoing news
echo "$PROGNAME: INFO: Delivering outgoing news ... "
/usr/local/lib/news/nntp/nntpsend betanews.demon.co.uk

if [ "$GETNEWS" ]; then
    echo "$PROGNAME: INFO: Getting new news articles ... "
    /usr/local/lib/news/nntp/nntpxfer betanews.demon.co.uk 
fi

echo "$PROGNAME: INFO: Process queued internet jobs ... "
/usr/local/bin/njqrun internet

#  Just to emphsize that exit codes are important as this is called from
#  backoff.
exit 0