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Re: Research to Create Automated Buffer Overflow Protection

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On Tue, 26 Aug 2014 19:35:26 +0200
"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote:

> On Tue, 26 Aug 2014 18:16:47 +0100, Richard Heathfield wrote:
> 
> > The only ways to get rid of C, in decreasing order of severity are:
> > 
> > (a) catastrophic global war, pestilence, or famine;
> > (b) legislation of an alarmingly authoritarian nature;
> > (c) the provision of an even more powerful language that is even
> > more prone to being abused.
> 
> (d) liability to the damages caused by software faults.

Bad programmers write bad programs in any language. There is no
such language that protects from software faults...


> 
> > (b) 
> > bounds-checking imposes a performance penalty that at least some
> > people are not prepared to tolerate.
> 
> The necessity of bounds-checking is greatly overestimated. There is
> no need to check for the bounds if the language constructs prevent
> indices or iterators going out of the bounds. C lacks such
> constructs, e.g. safe looping over the elements of a container or
> array. In many if not most of the cases this does not involve any
> explicit index at all and if it does, the index is guaranteed within
> the bounds. Such primitives would offer a better performance over
> crude C's pointer arithmetic as well. 

How so? Performance should be the same...
Problem with C arrays is that they are converted to raw pointers
and length information is lost. Errors come out because 
wrong array length is passed around or not at all...

-- 
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Research to Create Automated Buffer Overflow Protection Heidi Brayer <hap1026@gmail.com> - 2014-08-26 09:11 -0700
  Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-26 18:54 +0200
    Re: Research to Create Automated Buffer Overflow Protection Richard Heathfield <invalid@see.sig.invalid> - 2014-08-26 18:16 +0100
      Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-26 19:35 +0200
        Re: Research to Create Automated Buffer Overflow Protection Richard Heathfield <invalid@see.sig.invalid> - 2014-08-26 18:59 +0100
          Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-26 21:26 +0200
            Re: Research to Create Automated Buffer Overflow Protection Richard Heathfield <invalid@see.sig.invalid> - 2014-08-26 20:33 +0100
              Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-26 21:50 +0200
                Re: Research to Create Automated Buffer Overflow Protection Richard Heathfield <invalid@see.sig.invalid> - 2014-08-26 21:41 +0100
                Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-27 10:21 +0200
                Re: Research to Create Automated Buffer Overflow Protection "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-08-27 10:27 +0100
                Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-27 11:51 +0200
        Re: Research to Create Automated Buffer Overflow Protection Melzzzzz <mel@zzzzz.invalid> - 2014-08-26 20:39 +0200
          Re: Research to Create Automated Buffer Overflow Protection "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-08-26 20:13 +0100
          Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-26 21:38 +0200
            Re: Research to Create Automated Buffer Overflow Protection Melzzzzz <mel@zzzzz.com> - 2014-08-26 23:11 +0200
              Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-27 09:50 +0200
                Re: Research to Create Automated Buffer Overflow Protection "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-08-27 10:16 +0100
                Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-27 12:15 +0200
                Re: Research to Create Automated Buffer Overflow Protection Richard Heathfield <invalid@see.sig.invalid> - 2014-08-27 14:40 +0100
            Re: Research to Create Automated Buffer Overflow Protection "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-08-27 10:13 +0100
              Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-27 14:06 +0200
            Re: Research to Create Automated Buffer Overflow Protection "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-08-27 10:32 +0100
              Re: Research to Create Automated Buffer Overflow Protection "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2014-08-27 12:14 +0200
        Re: Research to Create Automated Buffer Overflow Protection "Chris M. Thomasson" <no@spam.invalid> - 2014-08-26 14:06 -0700
      Re: Research to Create Automated Buffer Overflow Protection Melzzzzz <mel@zzzzz.invalid> - 2014-08-26 20:16 +0200
        Re: Research to Create Automated Buffer Overflow Protection Öö Tiib <ootiib@hot.ee> - 2014-08-30 09:20 -0700
  Re: Research to Create Automated Buffer Overflow Protection Jongware <jongware@no-spam.plz> - 2014-09-15 10:47 +0200
    Re: Research to Create Automated Buffer Overflow Protection Richard Heathfield <invalid@see.sig.invalid> - 2014-09-15 10:46 +0100

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