Re: [PATCH] Re: Insecure tempfile creation

[Ray Andrews <rayandrews@eastlink.ca>]

On 01/08/2015 06:24 AM, Peter Stephenson wrote:
> On Thu, 8 Jan 2015 00:08:21 -0800
> Bart Schaefer <schaefer@brasslantern.com> wrote:
>> Fortunately, we have the zsh/files module which provides a buitin "ln"
>> with well-defined semantics.  Hopefully that's good enough.
> It's a little bit tangential, but it's always bothered me that the only
> option we have for module builtins of this kind is to import the into
> the command namespace under the standard name, trashing the use of the
> system-standard utility your code may elsewhere depend on That is, you
> can use "command ln" if you need to, but the point is in the majority of
> existing code you would never have bothered to do that.
>
> We made special arrangements for (z)stat but that really doesn't scale
> well.
>
> Apart from (z)stat, most of the builtins that look like standard utilies
> are only there for special cases, e.g. for some reason you can't get to
> the file system where they live, in which case there's no real problem.
> But for uses like this there potentially is.

What an interesting thought.  Reading, as I just did about some 'other' 
'ln' I: '$ whence ln' and what I get is '/bin/ln' ... and I shrug my 
shoulders and move on.
So are you saying that zsh has an internal 'ln'?  If so how can I learn 
about it?
I know we have uniquely named zsh functions, but I have no idea about any
that share standard names. man zshbuiltins doesn't mention any 'ln'. What
am I missing?