[Bug 47833] New: FindFirstFileExW seems to be missing FILE_OPEN_FOR_BACKUP_INTENT flag to NtOpenFile

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=47833

            Bug ID: 47833
           Summary: FindFirstFileExW seems to be missing
                    FILE_OPEN_FOR_BACKUP_INTENT flag to NtOpenFile
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: wine-bugs at winehq.org
          Reporter: qsniyg at mail.com
      Distribution: ---

When running USVFS (through ModOrganizer 2), its hooked version of NtOpenFile
checks for the FILE_OPEN_FOR_BACKUP_INTENT flag to see if the function calling
it is FindFirstFileExW.

Under Windows, this apparently works as expected, but wine doesn't pass the
flag, causing USVFS to fail injecting directory listings. Adding the flag
allows USVFS to work properly.

I haven't tested this under windows, so I have no way to verify if the flag
only gets set for some arguments sent to FindFirstFileExW and not others, but
since USVFS has been known to work for many different programs, I would
personally assume that the flag is always set.

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