local tA = {...}
local nport = tA[1] or "23"
function nshdw(h,p,s)
 spawn("nshdw["..tostring(s).."]",function() log(xpcall(function()
  while true do
   local sI = os.getenv("sI")
   local ev = {event.pull()}
   if ev[1] == "net_msg" and ev[2] == h and ev[3] == p then
    event.push("key",sI,string.byte(ev[4]:sub(1,1)),string.byte(ev[4]:sub(2,2)))
   elseif ev[1] == "key" and ev[2] == sI and ev[3] == 3 and ev[4] == 46 then
    break
   elseif ev[1] == "display" and ev[2] == sI then
    if ev[3]:len() < 1024 then
     net.send(h,p,"d"..ev[3])
    else
     for i = 1, ev[3]:len(), 1024 do
      net.send(h,p,"d"..ev[3]:sub(i,i+1023))
     end
    end
   end
  end
  net.send(h,p,"\27")
 end)) end,{sI=s})
end
spawn("nshd["..tostring(nport).."]",function() log(pcall(function()
 while true do
  local _, src, port, msg = event.pull("net_msg")
  if port == nport and msg == "initnsh2" then
   local cport = math.random(65535-1024,65535)
   local ns = "nsh-"..tostring(cport)
   log("[nshd] Starting nsh session "..tostring(cport).." for "..src)
   net.send(src,port,tostring(cport))
   luash(ns)
   nshdw(src,cport,ns)
  end
 end
end)) end)