[Bug 58229] New: _SH_SECURE sharing flag is not supported and causing _wfsopen to fail

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58229

Bug ID: 58229
           Summary: _SH_SECURE sharing flag is not supported and causing
                    _wfsopen to fail
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: msvcrt
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Calling _wfsopen with _SH_SECURE sharing flag result in failure and
"012c:err:msvcrt:_wsopen_dispatch Unhandled shflags 0x80" error in the
terminal.

0x80 value correspond to _SH_SECURE

Discovered while debugging Godot Engine -
https://github.com/godotengine/godot/pull/106392

Seems like the case for this flag is missing:
https://gitlab.winehq.org/wine/wine/-/blob/master/dlls/msvcrt/file.c?ref_typ...

The flag is documented as "shared read, exclusive write access"
(https://learn.microsoft.com/en-us/cpp/c-runtime-library/sharing-constants?vi...),
and the issue can be worked around by substituting it with "(mode_flags ==
READ) ? _SH_DENYWR : _SH_DENYRW", which result in the same behavior as on
Windows (at least in our use case).