$ip = inet_aton($be_host) || print "host($be_host) not found.\n";

$sockaddr = pack_sockaddr_in($port, $ip);
socket(SOCKET, PF_INET, SOCK_STREAM, 0) || print "socket error\n";

connect(SOCKET, $sockaddr) || die "connect $be_host error\n";
autoflush SOCKET (1);

print SOCKET "GET $url HTTP/1.1\n";
print SOCKET "Host: $host\n";
print SOCKET "Connection: close\n\n";