[Bug 50036] New: Remaining issues in Bugs in ntdll-Junction_Points in staging

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50036

            Bug ID: 50036
           Summary: Remaining issues in Bugs in ntdll-Junction_Points in
                    staging
           Product: Wine-staging
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: martin at martin.st
                CC: erich.e.hoover at gmail.com, leslie_alistair at hotmail.com,
                    z.figura12 at gmail.com
      Distribution: ---

Created attachment 68477
  --> https://bugs.winehq.org/attachment.cgi?id=68477
Test code for showing the issue

With the ntdll-Junction_Points, there's a few remaining issues that are
unimplemented:

- When opening a symbolic link with CreateFile(), it doesn't take the
FILE_FLAG_OPEN_REPARSE_POINT flag into account. E.g. if the symlink points at a
nonexistent file, if the link is opened with CreateFile() with the
FILE_FLAG_OPEN_REPARSE_POINT flag set, the operation should succeed (inspecting
the link), but without the flag, it should fail (as the link points at a
nonexistent file). Currently, it succeeds in both cases.

- If inspecting the handle opened with CreateFile() with
GetFileInformationByHandleEx(FileAttributeTagInfo), the ReparseTag field is
left zero.

This can be tested with the attached test app. On real windows, it prints
something like this:

CreateFile(FILE_FLAG_OPEN_REPARSE_POINT) = 0000000000000094
ReparseTag = a000000c
CreateFile(0) = FFFFFFFFFFFFFFFF

While on wine with the ntdll-Junction_Points patchset applied, it prints:

CreateFile(FILE_FLAG_OPEN_REPARSE_POINT) = 000000000000003C
ReparseTag = 0 
CreateFile(0) = 000000000000003C
ReparseTag = 0

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