https://bugs.winehq.org/show_bug.cgi?id=45397
--- Comment #5 from Hans Leidekker hans@meelstraat.net --- (In reply to Anderson Sasaki from comment #0)
Created attachment 61709 [details] Reproducer
When WSAStringToAddressA is called passing "255.255.255" as the input string to be converted, it is successful and returns zero.
Running on Windows instead of wine, it returns an error code, as expected.
What version of Windows? Our test suite includes such a test and it accepts both success and failure results, suggesting that behavior may be different across Windows versions. On Windows 10 this test succeeds.