function nshc_w(evPP,nid,pW)
 local sI = E().sI or 1
 chauthc(nid,evPP,pW)
 while true do
  if ev[1] == "net_msg" then
   local V,msg=false,tostring(ev[4])
   if ev[3] == evPP and ev[2] == nid then
    if msg:sub(1,3) == "dis" then
     write(msg:sub(4))
    end
   end
  elseif ev[1] == "key" and ev[2] == sI and ev[3] == 29 and ev[4] == 27 then
   break
  elseif ev[1] == "key" and ev[2] == sI then
   ns(nid,evPP,"key"..tostring(ev[3]))
  end
  C.yield()
 end
 ns(nid,evPP,"exit")
end

function nshc(P,nid,pW)
 pW=(pW or readln("*"))
 ns(nid,P,"initnsh")
 while true do
  if ev[1] == "net_msg" and ev[2] == nid and ev[3] == P then
   break
  elseif ev[1] == "key" and ev[2] == sI and ev[3] == 29 and ev[4] == 27 then
   break
  end
  C.yield()
 end
 nshc_w(ev[4],nid,pW)
end