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#!/bin/sh
# iTalc client launcher using avahi
# Written by Stéphane Graber <stgraber@ubuntu.com>
ICA_LTSP=`xprop -root ica_ltsp | sed 's/^.* //' 2> /dev/zero`
if [ "$ICA_LTSP" = "1" ]
then
echo "ICA already running on the thin client."
exit 0
fi
ISDPORT=5800
IVSPORT=5900
HOSTNAME=`hostname`
MD5_3=`md5sum /etc/italc/keys/public/teacher/key | awk '{print \$1}'`
MD5_2=`md5sum /etc/italc/keys/public/admin/key | awk '{print \$1}'`
MD5_1=`md5sum /etc/italc/keys/public/supporter/key | awk '{print \$1}'`
if [ "$LTSP_CLIENT" ];
then
echo LTSP environement detected
PORT=`echo $LTSP_CLIENT | awk -F . '{print \$4}'`
ISDPORT=$((11000 + $PORT))
IVSPORT=$((10000 + $PORT))
fi
if [ -f /etc/ltsp_chroot ]
then
IP=`ip addr show | grep " inet " | grep -v 127.0.0.1 | head -n1 | awk '{print \$2}' | sed "s/\/.*//"`
HOSTNAME="$IP ($USER)"
fi
RUNNING_ICA=`ps ux | awk '{print \$2" "\$11}' | grep -E "^[0-9]* ica" | awk '{print \$1}'`
if [ "$RUNNING_ICA" ]
then
for processus in $RUNNING_ICA
do
kill $processus
done
echo ICA already running, killing it.
sleep 1s
fi
echo Announce the service on avahi
avahi-publish-service "italc $HOSTNAME" _italc._tcp $IVSPORT $MD5_1 $MD5_2 $MD5_3 "$HOSTNAME" > /dev/zero &
echo Starting ICA
ica -noshm -isdport $ISDPORT -ivsport $IVSPORT
echo Stopping avahi
kill `ps ux | grep avahi-publish-service | grep italc | grep $IVSPORT | grep $HOSTNAME | awk '{print \$2}'`
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