Xlink Kai Ubuntu Host SSID Script

#!/bin/bash

# shutdown handler
shutdown()
{
  # start network-manager
  start network-manager > /dev/null

  # shutdown follower
  exit 0
}

# add shutdown handler
trap shutdown SIGINT

# clear screen
clear

# display credits
echo "KAI SSID Host Tool for Ubuntu Linux 10.04 by Coldbird"

# stop network-manager
stop network-manager > /dev/null

# bring down cable interface
ifconfig eth0 down

# bring down wlan interface
ifconfig wlan0 down

# bring up cable network (internet)
ifconfig eth0 up

# connect cable network (internet)
dhclient eth0 2> /dev/null

# switch wlan device into adhoc mode
iwconfig wlan0 mode ad-hoc

# repeat till it works
while [ $? != 0 ]; do
iwconfig wlan0 mode ad-hoc
done

# switch to channel 1
iwconfig wlan0 channel 1

# repeat till it works
while [ $? != 0 ]; do
iwconfig wlan0 channel 1
done

# start wlan device
ifconfig wlan0 up

# previous playstation ssid
PREVSSID="NOTHING"

# current playstation ssid
CURSSID="NOTHING"

# follower loop start
while true; do

# get playstation ssid
NEWSSID=`iwlist wlan0 scan 2> /dev/null | grep PSP_ | cut -d : -f 2 | cut -d \" -f 2 | cut -d \" -f 1 | grep -x -v $CURSSID`

# new playstation ssid start
if [ "$CURSSID" != "$NEWSSID" -a "$PREVSSID" != "$NEWSSID" -a -n "$NEWSSID" ]; then

# connect to network
iwconfig wlan0 essid $NEWSSID

# set link local
ifconfig wlan0 169.254.34.2

# save previous ssid
PREVSSID=$CURSSID

# save playstation ssid
CURSSID=$NEWSSID

# display change
echo Switched to $NEWSSID.

# new playstation ssid end
fi

# delay polling
sleep 3

# follower loop end
done