Patch title: Release 90 bulk changes
Abstract:
File: /protocol/sip/nat.pli
Key:
    Removed line
    Added line
module "/pliant/language/unsafe.pli"
module "/pliant/language/stream.pli"
module "/pliant/language/stream/udp.pli"


function sip_server
  (var Stream s) open "udp:/server/5600" in+out+safe
  (var Stream fwd) open "udp://10.107.1.31/client/5600" in+out+safe
  while true
    s read_available (var Address adr) (var Int size)
    console size " "
    fwd raw_write adr size
    fwd flush anytime

export sip_server