>>>>> "t" == ts <decoux / moulon.inra.fr> writes: t> This is me which is unable to program or there is a problem ? Someone can confirm this /* recvfrom will not necessarily return an address. e.g., linux 2.4.2 doesn't change addr or addr_size if socket is AF_INET/SOCK_STREAM. */ addr, addr_size are the last 2 parameters of recvfrom() Guy Decoux