##
socket(S, AF_INET, SOCK_DGRAM, $proto) or die "socket : $!";
setsockopt(S, SOL_SOCKET, SO_BROADCAST, 1) or die "setsockopt : $!
####
my $Domain = AF_INET;
my $Type = SOCK_DGRAM;
my $Level = SOL_SOCKET;
my $Optname = SO_BROADCAST;