Fix #5558.

src/exchange-tools/taler-wire.c

@@ -140,7 +140,8 @@ history_cb (void *cls,
 void
 confirmation_cb (void *cls,
                  int success,
-                 uint64_t serial_id,
+                 const void *row_id,
+                 size_t row_id_size,
                  const char *emsg)
 {
   if (GNUNET_YES != success)

src/exchange/taler-exchange-aggregator.c

@@ -1647,7 +1647,8 @@ prepare_cb (void *cls,
 static void
 wire_confirm_cb (void *cls,
                  int success,
-                 uint64_t serial_id,
+                 const void *row_id,
+                 size_t row_id_size,
                  const char *emsg)
 {
   struct TALER_EXCHANGEDB_Session *session = wpd->session;

src/include/taler_wire_plugin.h

@@ -148,10 +148,10 @@ struct TALER_WIRE_HistoryHandle;
 typedef void
 (*TALER_WIRE_ConfirmationCallback)(void *cls,
                                    int success,
-                                   uint64_t serial_id,
+                                   const void *row_id,
+                                   size_t row_id_size,
                                    const char *emsg);
 
-
 /**
  * @brief The plugin API, returned from the plugin's "init" function.
  * The argument given to "init" is simply a configuration handle.

src/wire-plugins/plugin_wire_taler-bank.c

@@ -632,6 +632,7 @@ execute_cb (void *cls,
   json_t *reason;
   const char *emsg;
   char *s;
+  uint64_t serial_id_nbo;
 
   eh->aaih = NULL;
   emsg = NULL;
@@ -653,10 +654,15 @@ execute_cb (void *cls,
                      "%u/%u",
                      http_status,
                      (unsigned int) ec);
+
+  serial_id_nbo = GNUNET_htonll (serial_id);
+
   eh->cc (eh->cc_cls,
           (MHD_HTTP_OK == http_status) ? GNUNET_OK : GNUNET_SYSERR,
-          serial_id,
+          &serial_id_nbo,
+          sizeof (uint64_t),
           (MHD_HTTP_OK == http_status) ? NULL : s);
+
   GNUNET_free (s);
   GNUNET_free (eh);
 }

src/wire-plugins/test_wire_plugin_transactions_taler-bank.c

@@ -153,13 +153,16 @@ timeout_cb (void *cls)
  * @param cls closure
  * @param ec taler status code
  * @param dir direction of the transfer
- * @param row_off identification of the position at which we are querying
+ * @param row_off identification of the position at
+ *        which we are querying
  * @param row_off_size number of bytes in @a row_off
  * @param details details about the wire transfer
- * @return #GNUNET_OK to continue, #GNUNET_SYSERR to abort iteration
+ * @return #GNUNET_OK to continue, #GNUNET_SYSERR to
+ *         abort iteration
  */
 static int
-history_result_cb (void *cls,
+history_result_cb
+  (void *cls,
    enum TALER_ErrorCode ec,
    enum TALER_BANK_Direction dir,
    const void *row_off,
@@ -222,16 +225,20 @@ history_result_cb (void *cls,
  * Function called with the result from the execute step.
  *
  * @param cls closure
- * @param success #GNUNET_OK on success, #GNUNET_SYSERR on failure
- * @param serial_id unique ID of the wire transfer in the bank's records; UINT64_MAX on error
+ * @param success #GNUNET_OK on success,
+ *        #GNUNET_SYSERR on failure
+ * @param row_id ID of the fresh transaction,
+ *        in _network_ byte order.
  * @param emsg NULL on success, otherwise an error message
  */
 static void
 confirmation_cb (void *cls,
                  int success,
-                 uint64_t serial_id,
+                 const void *row_id,
+                 size_t row_id_size,
                  const char *emsg)
 {
+  uint64_t tmp;
   eh = NULL;
   if (GNUNET_OK != success)
   {
@@ -240,7 +247,13 @@ confirmation_cb (void *cls,
     GNUNET_SCHEDULER_shutdown ();
     return;
   }
-  serial_target = serial_id;
+
+  memcpy (&tmp,
+          row_id,
+          row_id_size);
+
+  serial_target = GNUNET_ntohll (tmp);
+
   hh = plugin->get_history (plugin->cls,
                             my_account,
                             TALER_BANK_DIRECTION_BOTH,