Return connack information for MQTT 3.1.1 in the async client

Bug: 436049

Makefile

@@ -59,13 +59,13 @@ SYNC_SAMPLES = ${addprefix ${blddir}/samples/,${SAMPLE_FILES_C}}
 SAMPLE_FILES_A = stdoutsuba MQTTAsync_subscribe MQTTAsync_publish
 ASYNC_SAMPLES = ${addprefix ${blddir}/samples/,${SAMPLE_FILES_A}}
 
-TEST_FILES_C = test1 sync_client_test
+TEST_FILES_C = test1 sync_client_test test_mqtt4sync
 SYNC_TESTS = ${addprefix ${blddir}/test/,${TEST_FILES_C}}
 
 TEST_FILES_CS = test3
 SYNC_SSL_TESTS = ${addprefix ${blddir}/test/,${TEST_FILES_CS}}
 
-TEST_FILES_A = test4
+TEST_FILES_A = test4 test_mqtt4async
 ASYNC_TESTS = ${addprefix ${blddir}/test/,${TEST_FILES_A}}
 
 TEST_FILES_AS = test5

src/MQTTAsync.c

@@ -1511,8 +1511,16 @@ thread_return_type WINAPI MQTTAsync_receiveThread(void* n)
 						MQTTAsync_freeConnect(m->connect);
 						if (m->connect.onSuccess)
 						{
+							MQTTAsync_successData data;
+							memset(&data, '\0', sizeof(data));
 							Log(TRACE_MIN, -1, "Calling connect success for client %s", m->c->clientID);
-							(*(m->connect.onSuccess))(m->connect.context, NULL);
+							if (m->connect.details.conn.serverURIcount > 0)
+								data.alt.connect.serverURI = m->connect.details.conn.serverURIs[m->connect.details.conn.currentURI];
+							else
+								data.alt.connect.serverURI = m->serverURI;
+							data.alt.connect.MQTTVersion = m->connect.details.conn.MQTTVersion;
+							data.alt.connect.sessionPresent = ((Connack*)pack)->flags.bits.sessionPresent;
+							(*(m->connect.onSuccess))(m->connect.context, &data);
 						}
 					}
 					else

src/MQTTAsync.h

@@ -158,6 +158,10 @@
  * MQTT version to connect with: 3.1.1
  */
 #define MQTTVERSION_3_1_1 4
+/**
+ * Bad return code from subscribe, as defined in the 3.1.1 specification
+ */
+#define MQTT_BAD_SUBSCRIBE 0x80
 
 /**
  * A handle representing an MQTT client. A valid client handle is available