Bugfix/example-app-uevent-event-parsing (#1221)

* Added Send_UEvent_Notify_Device function for device-specific unconfirmed event notifications.

* Fixed event_notify_parse() loop index to start from zero.

* Added device ID binding support in the UEvent command-line application.

* Fixed the UEvent command-line application help output.

* Fixed initialization of event data in the UEvent command-line application by adding static CharacterString for message text and handling the failure case.

apps/event/main.c

@@ -226,12 +226,14 @@ static void print_help(const char *filename)
            "or an IP string with optional port number like 10.1.2.3:47808\n"
            "or an Ethernet MAC in hex like 00:21:70:7e:32:bb\n");
     printf("\n");
-    (void)filename;
+    printf("Example:\n");
+    printf("%s 123 1 2 binary-value 4 5 6 7 message event\n", filename);
 }
 
 int main(int argc, char *argv[])
 {
     BACNET_EVENT_NOTIFICATION_DATA event_data = { 0 };
+    BACNET_CHARACTER_STRING event_data_message_text = { 0 };
     unsigned long long_value = 0;
     BACNET_ADDRESS src = { 0 }; /* address where message came from */
     unsigned timeout = 100; /* milliseconds */
@@ -251,6 +253,7 @@ int main(int argc, char *argv[])
     unsigned int target_args = 0;
     const char *filename = NULL;
 
+    event_data.messageText = &event_data_message_text;
     filename = filename_remove_path(argv[0]);
     for (argi = 1; argi < argc; argi++) {
         if (strcmp(argv[argi], "--help") == 0) {
@@ -305,11 +308,12 @@ int main(int argc, char *argv[])
                 Target_Device_Object_Instance = (uint32_t)long_value;
                 target_args++;
             } else if (target_args == 1) {
-                if (!event_notify_parse(
-                        &event_data, argc - argi, &argv[argi])) {
-                    fprintf(stderr, "event=%s invalid\n", argv[argi]);
-                } else {
+                if (event_notify_parse(&event_data, argc - argi, &argv[argi])) {
                     target_args++;
+                    break;
+                } else {
+                    fprintf(stderr, "event parsing invalid\n");
+                    return 1;
                 }
             } else {
                 print_usage(filename);
@@ -317,7 +321,7 @@ int main(int argc, char *argv[])
             }
         }
     }
-    if (target_args < 14) {
+    if (target_args < 2) {
         print_usage(filename);
         return 0;
     }