synergyc_safe.rb

#!/usr/bin/ruby

SERVER = ARGV[0] || 'www.example.com'
PORT = '24800'

system "ssh -f -n -N -L localhost:#{PORT}:#{SERVER}:#{PORT} #{SERVER}" unless (`pidof ssh`.split.any? { |pid| File.read("/proc/#{pid}/cmdline").include? PORT })

exec 'synergyc localhost'