get notification crash issue

[sumit1478]

Hi,
I used notification .c code to test receiving data from Nexgo-POS-BLE device.It was able to recive correct data but was crashing with following error:

Notification Handler: 30 30 30 30 30 30 30 30 30 30 30
munmap_chunk(): invalid pointer
Aborted (core dumped)

(30 30 30 30 30 30 30 30 30 30 30 was the data i sent and i was able to receive it correctly)

However when i used following indication fns instead of notification fns ,it worked flawlessly:

gattlib_register_indication(connection, notification_handler, NULL);
gattlib_indication_start(connection, &g_notify_uuid);

[felwiz]

I do not see the
gattlib_indication_start() in the gattlib.h file. Are you certain this is part of the library? I want to use it.

[VL-80]

@felwiz

gattlib_indication_start() is in the library:

gattlib/include/gattlib.h

Lines 547 to 555 in 1afaa8b

 /* 
  * @brief Enable indication on GATT characteristic represented by its UUID 
  * 
  * @param connection Active GATT connection 
  * @param uuid UUID of the characteristic that will trigger the indication 
  * 
  * @return GATTLIB_SUCCESS on success or GATTLIB_* error code 
  */ 
 int gattlib_indication_start(gatt_connection_t* connection, const uuid_t* uuid); 

gattlib/dbus/gattlib_notification.c

Lines 253 to 255 in 1afaa8b

 int gattlib_indication_start(gatt_connection_t* connection, const uuid_t* uuid) { 
 	return connect_signal_to_characteristic_uuid(connection, uuid, on_handle_characteristic_indication); 
 }