Re: How do I write directly to a memory address?

[Hyman Rosen <hyrosen@mail.com>]

On 2/7/2011 11:24 AM, Robert A Duff wrote:
> Hyman Rosen<hyrosen@mail.com>  writes:
>
>> ...And is Ada any
>> more immune than C to little Bobby Tables? (<http://xkcd.com/327/>)
>
> Well, yeah, somewhat.  As I mentioned in another thread:
>
> http://www.adacore.com/2010/03/22/gem-82/
> http://www.adacore.com/2010/04/05/gem-83/
>
> The second "gem" contains a reference to that very
> same xkcd comic you mention above (which I found
> highly amusing!).
>
> Similar things could be done in C, but it's it's rather
> more trouble.

I don't think you've made your case. The gem says
     As long as this interface is used, no errors can result
     in improper input being interpreted as a command
but SQL injection problems occur because at some point,
a programmer fails to notice that there's an input that
needs to be subject to the check.

By the way, I think the gem is taking the wrong approach to
validation. There's no reason to reject strings with special
characters as invalid input. Building up SQL with user inputs
involves correctly quoting the inputs. When they're properly
quoted they can have embedded special characters and the SQL
will still be correct. Otherwise you subject users to annoying
restrictions such as not allowing those characters in their
passwords.