Full_Name: Version: OS: URL: Submission from: (NULL) (22.214.171.124)
In the control returned to the client, the size MAY be set to the server's estimate of the total number of entries in the entire result set.
So a client could evaluate this size value whether it's greater than 0 and take this as indication how many search results would be returned (and e.g. display it to the user).
slapd doesn't know in advance how many results can be returned. It knows how many potential candidates were generated by index lookups, but this number may be much larger than the actual result set. In particular, the result set may be much smaller due to ACLs, as well as actual filter comparisons. It would be a security violation to disclose the existence of entries that the user is not permitted to see.
Rejecting this request.