[Bug 53499] New: GetAdaptersInfo returns loopback interface while it should omit it

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53499

            Bug ID: 53499
           Summary: GetAdaptersInfo returns loopback interface while it
                    should omit it
           Product: Wine
           Version: 7.14
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: iphlpapi
          Assignee: wine-bugs at winehq.org
          Reporter: stanislav.rimsha at gmail.com
      Distribution: ---

Created attachment 72853
  --> https://bugs.winehq.org/attachment.cgi?id=72853
Application debug log with +iphlpapi,+nsi,+winsock

I'm trying to fix LAN play under wine for a game for some time and in the logs
I came across the issue that GetAdaptersInfo seems to include loopback
interface and causing application to use zero hardware address (loopback
interface is always on top).

According to the code here loopback interfaces should not be included:
https://gitlab.winehq.org/wine/wine/-/blob/master/dlls/iphlpapi/iphlpapi_main.c#L655

However in debug log interface indexes indicate that loopback is likely
returned along with other adapters.

Also worth noting that in ipconfig /all the lo interface is considered an
Ethernet interface.

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