bug#865: 23.0.60; The directory is unsafe today

[Francis Litterio]

Eli Zaretskii wrote:

>> From: Stefan Monnier

>> But I'd argue that having the umask (aka default-file-modes) set to
>> #o700 could be used as a tell-tale sign, so it sounds to me like it
>> might be doable by adding w32 C code without any C-level changes.
>
> So you are saying we should assume that when umask has its two lower
> mode bits set to zero, the intent is to create a private file
> accessible only by the user who runs Emacs?  I don't like such
> assumptions, but if I'm the only one, so be it.

Overloading the semantics of a subset of the bits in the umask seems
prone to confusion.  Why not create a new w32-... variable to encode
those semantics?
--
Fran