[Bug 53714] New: proxyodbc SQLGetInfoW wrong behaviour when InfoValue null

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53714

Bug ID: 53714
           Summary: proxyodbc SQLGetInfoW wrong behaviour when InfoValue
                    null
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: odbc
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Difference between odbc and proxyodbc.

Expected behaviour:

Calling proxyodbc SQLGetInfoW with null InfoValue should fill StringLength with
total bytes to be written. This allows to create appropriate size buffer on
second call.

Current behaviour:

proxyodbc SQLGetInfoW logs warning "Unexpected NULL InfoValue address" and
returns SQL_ERROR without returning bytes to be written.