function fget(addr,path,port)
 local port,S = port or "fget",""
 ns(addr,port,path)
 while true do
  if ev[1] == "net_msg" and ev[2] == addr and ev[3] == port then
   if ev[4] == "." then
    break
   else
    S=S..ev[4] 
   end
  end
  C.yield()
 end
 return S
end