#!/bin/sh -e
#
# TODO:
#  - error checking on values provided by debconf frontend

BASEDIR=/tftpboot
DAEMON="--daemon"

. /usr/share/debconf/confmodule
db_version 2.0

db_get atftpd/configure
if [ "$RET" = "true" ]; then

    db_get atftpd/use_inetd
    if [ "$RET" ]; then
	if [ "$RET" = "true" ]; then
	    USE_INETD=true
	else
	    USE_INETD=false
	fi
    else
	USE_INETD=true
    fi

    db_get atftpd/port
    if [ "$RET" ]; then
	TFTPD_PORT="--port $RET"
    fi

    db_get atftpd/tftpd-timeout
    if [ "$RET" ]; then
        TFTPD_TIMEOUT="--tftpd-timeout $RET"
    fi

    db_get atftpd/retry-timeout
    if [ "$RET" ]; then
        RETRY_TIMEOUT="--retry-timeout $RET"
    fi

    db_get atftpd/maxthread
    if [ "$RET" ]; then
        MAXTHREAD="--maxthread $RET"
    fi

    db_get atftpd/timeout
    if [ "$RET" != "true" ]; then
	NOTIMEOUT="--no-timeout"
    fi

    db_get atftpd/tsize
    if [ "$RET" != "true" ]; then
	NOTSIZE="--no-tsize"
    fi

    db_get atftpd/blksize
    if [ "$RET" != "true" ]; then
	NOBLKSIZE="--no-blksize"
    fi

    db_get atftpd/multicast
    if [ "$RET" != "true" ]; then
	NOMCAST="--no-multicast"
    else
	db_get atftpd/mcast_port
	if [ "$RET" ]; then
	    MCASTPORT="--mcast-port $RET"
	fi
	db_get atftpd/mcast_addr
	if [ "$RET" ]; then
	    MCASTADDR="--mcast-addr $RET"
	fi
    fi

    db_get atftpd/verbosity
    if [ "$RET" ]; then
	RET=`echo $RET | cut -f1 -d ' '`
        VERBOSITY="--verbose=$RET"
    fi

    db_get atftpd/logtofile
    if [ "$RET" = "true" ]; then
	db_get atftpd/logfile
	if [ "$RET" ]; then
	    LOGFILE="--logfile $RET"
	    # if the file doesn't exist, create it
	    if [ ! -f $RET ]; then
		touch $RET
		chown nobody.nogroup $RET
		chmod 640 $RET
	    fi
	    # modify the logrotate file
	    echo -e "$RET {\n" \
		    "  daily\n" \
		    "  rotate 5\n" \
		    "  compress\n" \
		    "  copytruncate\n" \
		    "  missingok\n" \
		    "}" > /etc/logrotate.d/atftpd
	fi
    else
	LOGFILE=""
	# remove the logrotate file
	rm -f /etc/logrotate.d/atftpd
    fi

    db_get atftpd/basedir
    if [ "$RET" ]; then
        BASEDIR="$RET"
    fi

fi

# remove any occurance
update-inetd --remove "tftp.*"

# Make sure atftpd is stoped. Needed for dpkg-reconfigure.
if [ -e "/etc/init.d/atftpd" ]; then
        /etc/init.d/atftpd stop
fi

if [ "$USE_INETD" = "false" ]; then
    echo "USE_INETD=false" > /etc/default/atftpd
    echo "OPTIONS=\"$DAEMON $TFTPD_PORT $RETRY_TIMEOUT $NOTIMEOUT $NOTSIZE $NOBLKSIZE $NOMCAST \
$MCASTPORT $MCASTADDR $MAXTHREAD $VERBOSITY $LOGFILE $BASEDIR\"" >> /etc/default/atftpd
else
    update-inetd --group BOOT --add "tftp		dgram	udp	wait \
	nobody /usr/sbin/tcpd /usr/sbin/in.tftpd $TFTPD_TIMEOUT $RETRY_TIMEOUT $NOTIMEOUT $NOTSIZE $NOBLKSIZE \
$NOMCAST $MCASTPORT $MCASTADDR $MAXTHREAD $VERBOSITY $LOGFILE $BASEDIR"
    echo "USE_INETD=true" > /etc/default/atftpd
    echo "OPTIONS=\"$DAEMON $TFTPD_PORT $TFTPD_TIMEOUT $RETRY_TIMEOUT $NOTIMEOUT $NOTSIZE $NOBLKSIZE $NOMCAST \
$MCASTPORT $MCASTADDR $MAXTHREAD $VERBOSITY $LOGFILE $BASEDIR\"" >> /etc/default/atftpd
fi

#DEBHELPER#

# tell debconf we are done. otherwise, it hangs waiting for the daemon.
db_stop;

exit 0;