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Macで無線APを監視してhostsを書き換え
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>hosts_switch</string>
<key>LingonWhat</key>
<string>sh /Users/retlet/Dropbox/settings/script/hosts_switch/hosts_switch.sh</string>
<key>ProgramArguments</key>
<array>
<string>sh</string>
<string>/Users/retlet/Dropbox/settings/script/hosts_switch/hosts_switch.sh</string>
</array>
<key>RunAtLoad</key>
<true />
<key>StandardErrorPath</key>
<string>/tmp/foo</string>
<key>StandardOutPath</key>
<string>/tmp/bar</string>
<key>WatchPaths</key>
<array>
<string>/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist</string>
<string>/Library/Preferences/SystemConfiguration/com.apple.network.identification.plist</string>
</array>
</dict>
</plist>
#!/bin/sh
/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport -I | grep -q "ssig33"
ap=$?
if [[ "${ap}" -eq 0 ]];then
ed - /etc/hosts <<EOF
1,20s/10\.2\.0\.1 hanpen/192.168.1.2 hanpen/
1,20s/#192\.168\.1.2 hanpen\.mycloudnas\.com/192.168.1.2 hanpen.mycloudnas.com/
w
q
EOF
else
ed - /etc/hosts <<EOF
1,20s/192\.168\.1.2 hanpen/10.2.0.1 hanpen/
1,20s/192\.168\.1.2 hanpen\.mycloudnas\.com/#192.168.1.2 hanpen.mycloudnas.com/
w
q
EOF
fi
dir=`dirname $0`
date=`date '+%Y-%m-%d %T'`
echo ${date} ${ap} >>${dir}/log
# launchd setup
copy_dir="/Library/LaunchDaemons"
cp -f hosts_switch.plist ${copy_dir}/hosts_switch.plist
chmod 644 ${copy_dir}/hosts_switch.plist
chown root:wheel ${copy_dir}/hosts_switch.plist
launchctl unload ${copy_dir}/hosts_switch.plist
launchctl load ${copy_dir}/hosts_switch.plist
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