void NtpClient::requestTime()
{
if (!WifiStation.isConnected())
{
connectionTimer.initializeMs(1000, Delegate<void()>(&NtpClient::requestTime, this)).startOnce();
return;
}
if (serverAddress.isNull())
{
if (!resolveServer())
{
return;
}
}
// connect to current active serverAddress, on NTP_PORT
this->connect(serverAddress,NTP_PORT);
uint8_t packet[NTP_PACKET_SIZE];
// Setup the NTP request packet
memset(packet, 0, NTP_PACKET_SIZE);
// These are the only required values for a SNTP request. See page 14:
// https://tools.ietf.org/html/rfc4330
// However size of packet should still be 48 bytes.
packet[0] = (NTP_VERSION << 3 | 0x03); // LI (0 = no warning), Protocol version (4), Client mode (3)
packet[1] = 0; // Stratum, or type of clock, unspecified.
// Send to server, serverAddress & port is set in connect
NtpClient::send((char*) packet, NTP_PACKET_SIZE);
}
void NtpClient::requestTime()
{
// Start listening for incomming packets.
// may already been started in that case nothing happens.
this->listen(NTP_LISTEN_PORT);
if (serverAddress.isNull())
{
if (!resolveServer())
{
return;
}
}
uint8_t packet[NTP_PACKET_SIZE];
// Setup the NTP request packet
memset(packet, 0, NTP_PACKET_SIZE);
// These are the only required values for a SNTP request. See page 14:
// https://tools.ietf.org/html/rfc4330
// However size of packet should still be 48 bytes.
packet[0] = (NTP_VERSION << 3 | 0x03); // LI (0 = no warning), Protocol version (4), Client mode (3)
packet[1] = 0; // Stratum, or type of clock, unspecified.
NtpClient::sendTo(serverAddress, NTP_PORT, (char*) packet, NTP_PACKET_SIZE);
}
