Added encode/decode for Time_Synchronization_Recipients.

Added Send_TimeSync_Remote() which can use specific destination address.
Added function prototypes for time sync master in the handlers.

bacnet-stack/demo/handler/s_ts.c

@@ -45,13 +45,13 @@
 
 /** @file s_ts.c  Send TimeSync requests. */
 
-void Send_TimeSync(
+void Send_TimeSync_Remote(
+    BACNET_ADDRESS * dest,
     BACNET_DATE * bdate,
     BACNET_TIME * btime)
 {
     int len = 0;
     int pdu_len = 0;
-    BACNET_ADDRESS dest;
     int bytes_sent = 0;
     BACNET_NPDU_DATA npdu_data;
     BACNET_ADDRESS my_address;
@@ -59,13 +59,11 @@ void Send_TimeSync(
     if (!dcc_communication_enabled())
         return;
 
-    /* we could use unicast or broadcast */
-    datalink_get_broadcast_address(&dest);
     datalink_get_my_address(&my_address);
     /* encode the NPDU portion of the packet */
     npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
     pdu_len =
-        npdu_encode_pdu(&Handler_Transmit_Buffer[0], &dest, &my_address,
+        npdu_encode_pdu(&Handler_Transmit_Buffer[0], dest, &my_address,
         &npdu_data);
 
     /* encode the APDU portion of the packet */
@@ -74,7 +72,7 @@ void Send_TimeSync(
     pdu_len += len;
     /* send it out the datalink */
     bytes_sent =
-        datalink_send_pdu(&dest, &npdu_data, &Handler_Transmit_Buffer[0],
+        datalink_send_pdu(dest, &npdu_data, &Handler_Transmit_Buffer[0],
         pdu_len);
 #if PRINT_ENABLED
     if (bytes_sent <= 0)
@@ -83,6 +81,16 @@ void Send_TimeSync(
 #endif
 }
 
+void Send_TimeSync(
+    BACNET_DATE * bdate,
+    BACNET_TIME * btime)
+{
+    BACNET_ADDRESS dest;
+
+    datalink_get_broadcast_address(&dest);
+    Send_TimeSync_Remote(&dest, bdate, btime);
+}
+
 void Send_TimeSyncUTC(
     BACNET_DATE * bdate,
     BACNET_TIME * btime)