Please review: [389 Project] #47435: Very large entryusn values after enabling the USN plugin and the lastusn value is negative.

[Noriko Hosoi]

https://fedorahosted.org/389/ticket/47435

https://fedorahosted.org/389/attachment/ticket/47435/0001-Ticket-47435-Ve...

  1. Bug description: The initial value of lastusn is -1, but since
  the entryusn has the unsigned long long integer type, the server
  returns 18446744073709551615 == 0XFFFFFFFFFFFFFFFF.

  Fix description: The initial value "-1" is returned as it is.

  2. Bug description: Entryusn syntax is defined as an integer in
  the schema.  If negative values are accidentally stored in the
  entryusn value in the database, it was casted to the unsigned
  integer in the entryusn initialization code (usn_get_last_usn).

  Fix description: When an entryusn value is retrieved from the
  database, it's checked as a singed integer once and if it is
  negative, it's replaced with the initial value "-1".