bug#15648: 24.2.50; gnutls SSL connection to IMAP server causes emacs to crash completely

[Eli Zaretskii]

> From: Ted Zlatanov <tzz@lifelogs.com>
> Cc: emacs@kosowsky.org,  15648@debbugs.gnu.org
> Gmane-Reply-To-List: yes
> Date: Mon, 04 Nov 2013 11:28:36 -0500
> 
> >> The function is called convert-standard-filename. All it really does
> >> currently is replace invalid characters/filenames for
> >> cygwin/windows-nt/ms-dos.
> 
> EZ> No, please leave that function alone.  Its purpose is different: to
> EZ> convert a _standard_ file name used in Emacs, such as ".emacs", to
> EZ> something the underlying system can use.  IOW, that function is so
> EZ> that Posix systems could use any file name they want, and non-Posix
> EZ> systems adapt.
> 
> Isn't that exactly what's breaking here?

No.

> We specify a POSIX file name in `/usr/...' that's not translated
> automatically to something the system can handle.

The Windows filesystems can handle /usr/... very well.  The problem
here is that some external entity is assigning a semantics to that
file name that is different from the meaning it has on the native
filesystem.  By contrast, convert-standard-filename is about _form_,
not about _semantics_.