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From: Pascal Obry <pascal@obry.org>
Subject: Re: variable lenght strings
Date: 26 Oct 2004 22:10:28 +0200
Date: 2004-10-26T22:10:28+02:00	[thread overview]
Message-ID: <u8y9tmea3.fsf@obry.org> (raw)
In-Reply-To: 1098814048.280053@master.nyc.kbcfp.com


Hyman Rosen <hyrosen@mail.com> writes:

> Pascal Obry wrote:
> > This kind of recursivity is very dangerous and could cause a stack
> > overflow.
> 
> Why is it dangerous? Won't Ada just raise a memory exception?

Because the object is on the stack. This is not a problem of memory but of
stack space. A program using too much stack will likely got out of stack
space and receive a Program_Error exception. There is no much you can do at
this point, in many cases the only solution is to exit-as-soon-as-possible!

Such program is creating a security hole anyway... if you know that somebody
has used such algorithm just send him (file upload on a Web site for example)
a file with a very long line!

Pascal.

-- 

--|------------------------------------------------------
--| Pascal Obry                           Team-Ada Member
--| 45, rue Gabriel Peri - 78114 Magny Les Hameaux FRANCE
--|------------------------------------------------------
--|              http://www.obry.org
--| "The best way to travel is by means of imagination"
--|
--| gpg --keyserver wwwkeys.pgp.net --recv-key C1082595



  reply	other threads:[~2004-10-26 20:10 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-21 17:52 variable lenght strings fabio de francesco
2004-10-21 21:22 ` Martin Dowie
2004-10-21 22:42 ` Marius Amado Alves
2004-10-21 23:14   ` Matthew Heaney
2004-10-22  7:38     ` Martin Krischik
2004-10-22 12:30     ` fabio de francesco
2004-10-22  7:29   ` Martin Krischik
2004-10-22 13:01     ` Matthew Heaney
2004-10-24 15:46       ` Martin Krischik
2004-10-24 19:54         ` Jeffrey Carter
2004-10-24 21:30           ` Larry Kilgallen
2004-10-25  4:02             ` Jeffrey Carter
2004-10-21 23:01 ` Marius Amado Alves
2004-10-21 23:05 ` Stephen Leake
2004-10-22  7:25 ` Martin Krischik
2004-10-22 11:11   ` Martin Dowie
2004-10-24 15:43     ` Martin Krischik
2004-10-24 17:39       ` Martin Dowie
2004-10-24 18:37       ` Björn Persson
2004-10-25  7:30         ` Martin Krischik
2004-10-26  0:06           ` Randy Brukardt
2004-10-26  1:53             ` Larry Kilgallen
2004-10-26  8:49               ` Martin Krischik
2004-10-26 11:18               ` Marius Amado Alves
2004-10-26 12:48                 ` variable length strings Larry Kilgallen
2004-10-26 16:11                   ` Warren W. Gay VE3WWG
2004-10-26 18:50                     ` Björn Persson
2004-10-26 19:46                       ` Larry Kilgallen
2004-10-26  8:43             ` variable lenght strings Jean-Pierre Rosen
2004-10-26 13:15               ` Martin Krischik
2004-10-26 17:37                 ` Pascal Obry
2004-10-26 18:07                   ` Hyman Rosen
2004-10-26 20:10                     ` Pascal Obry [this message]
2004-10-27 10:26                       ` variable length strings Jacob Sparre Andersen
2004-10-27 10:39                         ` Pascal Obry
2004-10-27 11:47                         ` Larry Kilgallen
2004-10-28  7:18                           ` Jacob Sparre Andersen
2004-10-27 11:50                         ` Larry Kilgallen
     [not found]                         ` <uwtxcla1n.fsf@obry.Organization: LJK Software <PTzuwe3GsIg6@eisner.encompasserve.org>
2004-10-27 12:12                           ` Samuel Tardieu
2004-10-27 12:58                             ` Pascal Obry
2004-10-27 13:04                           ` Pascal Obry
2004-10-27 14:54                             ` Dmitry A. Kazakov
2004-10-27 16:38                               ` Pascal Obry
2004-10-28  8:14                                 ` Dmitry A. Kazakov
2004-10-28  8:49                                   ` Pascal Obry
2004-10-28  9:06                                     ` Dmitry A. Kazakov
2004-10-28 16:07                                       ` Pascal Obry
2004-10-28 22:05                                         ` Jeffrey Carter
2004-10-28 22:41                                           ` Randy Brukardt
2004-10-29  1:11                                             ` Jeffrey Carter
2004-10-29  7:42                                         ` Dmitry A. Kazakov
2004-10-28 10:31                         ` Larry Kilgallen
2004-10-26 18:13                   ` variable lenght strings Martin Krischik
2004-10-27 12:01                 ` Jean-Pierre Rosen
2004-10-26 17:46             ` Jeffrey Carter
2004-10-28 22:50               ` Randy Brukardt
2004-10-28 23:01                 ` Larry Kilgallen
2004-10-29 21:52                   ` Randy Brukardt
2004-10-29  8:48                 ` Dale Stanbrough
2004-10-29  9:11                   ` Larry Kilgallen
2004-10-24 18:38     ` Why these "Drop" parameters? (was: variable lenght strings) Björn Persson
2004-10-26  0:13       ` Randy Brukardt
2004-11-01  1:02         ` Why these "Drop" parameters? Björn Persson
2004-11-01 19:59           ` Randy Brukardt
2004-10-24 18:57 ` variable lenght strings Jeffrey Carter
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