Re: Patch to allow trailing dots on managed mounts

[Christopher Faylor <cgf-no-personal-reply-please at cygwin dot com>]

On Thu, Dec 16, 2004 at 10:04:41PM -0500, Pierre A. Humblet wrote:
>	* path.cc (path_conv::check): Check the output Win32 path for trailing
>	spaces and dots, not the input path.

Ok.  I've convinced myself that doing it what I consider to be the most
forgiving way is going to be too expensive, introducing extra code for
an unlikely corner case in a routine that is time-sensitive.  So, I'm
checking in a variation of this patch.  It didn't work out of the box
and I wanted to add some extra checking so I rewrote part of the patch.

For now, I'm disallowing all use of '.\' and ' \' in a path.  It seems
more consistent to disallow everything than to allow some stuff.  I
didn't change the symlink code to disallow "ln -s foo bar..."  If someone
actually complains about this, maybe I will.

So, "ls /bin........." works, "ls /bin./pwd.exe" doesn't work and "ls
/cygwin/c/cygwin/bin./pwd.exe" doesn't work either.  Nor does
"ls c:\cygwin\bin.\pwd.exe".  I don't know if we'll hear complaints about
this one or not.

>Also, for my info, what is the unc\ in
>       !strncasematch (this->path + 4, "unc\\", 4)))
>around line 868? I have never seen that documented.

I've always wondered about that myself.  I am pretty sure it predates
me.  I've removed that test.  It doesn't make any sense to me either.

Thanks, Pierre.

cgf