gistfile1

require 'facter'

def hos_server(host, attr)
  value = nil
  server_block = nil
  File.open("/etc/hos_server").each do |line|
    line.chomp!
    if line =~ /^server:\s+(\S+)\s+\{\s*$/
      if host == $1
        server_block = host
      else
        server_block = nil
      end
   elsif host == server_block and line =~ /^\s*([^:]+):\s*([.*]);\s*$/
     if attr == $1
       value = $2
       break
     end
   end
  end
  value
end

Facter.add("hos_antivirus") do
  setcode do
    hos_server($fqdn, "antivirus")
  end
end