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Re: VMS

From rbowman <bowman@montana.com>
Newsgroups comp.os.linux.misc
Subject Re: VMS
Date 2025-06-21 05:53 +0000
Message-ID <mbmvmbFfmqoU1@mid.individual.net> (permalink)
References (10 earlier) <1033o4a$1qj6$3@dont-email.me> <1033tv1$3aqu$3@dont-email.me> <1034pj8$a74s$1@dont-email.me> <mbmm2nFdsgcU2@mid.individual.net> <slrn105cajs.4vj.spamtrap42@one.localnet>

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On 21 Jun 2025 03:43:56 GMT, Robert Riches wrote:

> On 2025-06-21, rbowman <bowman@montana.com> wrote:
>> On Fri, 20 Jun 2025 23:07:20 -0000 (UTC), Rich wrote:
>>
>>> Very likely, but the idea was to protect the typical programmer from
>>> their own common mistakes (of not carefully checking error return
>>> codes or buffer lengths, etc.).  I.e. the typical 9-5 contract
>>> programmer, not the Dennis Ritchie's of the world.
>>
>> I'm paranoid enough that I check the return of malloc and try to log
>> the problem even though I'm probably screwed at that point. It has
>> pointed out errors for calloc if you've manged to come up with a
>> negative size.
>>
>> I have worked with programmers that assumed nothing bad would ever
>> happen.
>> Sadly, some had years of experience.
> 
> Some years ago, I heard of a bug related to use of malloc.  The code had
> _intended_ to dynamically allocate storage for a string and the
> terminating null byte.  It was _intended_ to do this:
> 
>         dest = malloc(strlen(src)+1);
> 
> Instead, a paren was misplaced:
> 
>         dest = malloc(strlen(src))+1;
> 
> IIUC, the next line copied the src string into the newly- allocated
> destination.
> 
> Those who had worked on that project longer said the bug had been latent
> in the code for several years, most likely with alignment padding
> masking the bug from being discovered.  Curiously, the bug made itself
> manifest immediately upon changing from a 32-bit build environment to a
> 64-bit build environment.

We picked up quite a few bugs moving from AIX to Linux. AIX was very 
tolerant of null pointers. Building for Windows using the MKS toolkit was 
also interesting. I've fixed 20 year old bugs that were lurking there 
waiting for the right alignment of the planets.

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VMS c186282 <c186282@nnada.net> - 2025-06-14 01:15 -0400
  Re: VMS Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-06-14 10:05 -0700
    Re: VMS Andreas Eder <a_eder_muc@web.de> - 2025-06-14 20:30 +0200
      Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-14 23:27 +0000
        Re: VMS rbowman <bowman@montana.com> - 2025-06-15 00:57 +0000
          Re: VMS c186282 <c186282@nnada.net> - 2025-06-14 23:32 -0400
            Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-15 08:26 +0100
              Re: VMS c186282 <c186282@nnada.net> - 2025-06-15 21:12 -0400
                Re: VMS Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-16 18:15 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-17 23:20 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-18 04:14 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-18 02:34 -0400
            Re: VMS rbowman <bowman@montana.com> - 2025-06-15 18:49 +0000
              Re: VMS c186282 <c186282@nnada.net> - 2025-06-15 22:45 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-16 04:35 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-16 01:35 -0400
        Re: VMS c186282 <c186282@nnada.net> - 2025-06-14 23:03 -0400
          Re: VMS candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-06-18 05:30 +0000
            Re: VMS c186282 <c186282@nnada.net> - 2025-06-18 02:09 -0400
              Re: VMS candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-06-18 19:00 +0000
                Re: VMS Rich <rich@example.invalid> - 2025-06-18 20:23 +0000
                Re: VMS Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-18 20:30 +0000
                Re: VMS rbowman <bowman@montana.com> - 2025-06-18 23:09 +0000
              Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-19 08:40 +0100
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-20 00:43 -0400
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-20 09:00 +0100
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-20 10:19 +0100
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-20 15:15 +0100
                Re: VMS Rich <rich@example.invalid> - 2025-06-20 13:36 +0000
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-20 16:15 +0100
                Re: VMS Rich <rich@example.invalid> - 2025-06-20 23:07 +0000
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-21 01:07 +0100
                Re: VMS rbowman <bowman@montana.com> - 2025-06-21 03:09 +0000
                Re: VMS Robert Riches <spamtrap42@jacob21819.net> - 2025-06-21 03:43 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-21 01:36 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-21 05:53 +0000
                Re: VMS candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-06-22 13:50 +0000
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-22 15:27 +0100
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-22 15:56 +0100
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-23 00:18 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-22 19:23 +0000
                Re: VMS candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-06-23 18:10 +0000
                Re: VMS rbowman <bowman@montana.com> - 2025-06-23 19:27 +0000
                Re: VMS Robert Riches <spamtrap42@jacob21819.net> - 2025-06-24 03:34 +0000
                Re: VMS Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-06-24 04:52 +0000
                Re: VMS rbowman <bowman@montana.com> - 2025-06-24 05:14 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-24 01:36 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-24 06:49 +0000
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-24 10:31 +0100
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-25 01:36 -0400
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-25 07:31 +0100
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-25 03:08 -0400
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-24 08:56 +0100
                Re: VMS Robert Riches <spamtrap42@jacob21819.net> - 2025-06-25 03:01 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-25 01:59 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-25 06:52 +0000
                Re: VMS John Ames <commodorejohn@gmail.com> - 2025-06-25 09:32 -0700
                Re: VMS John Ames <commodorejohn@gmail.com> - 2025-06-25 09:44 -0700
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-25 19:01 -0400
                Re: VMS candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-06-27 06:00 +0000
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-27 08:37 +0100
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-27 08:45 +0100
                Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-27 08:14 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-27 13:27 -0400
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-27 19:13 +0100
                Re: VMS Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-06-28 09:16 -0400
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-27 13:24 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-27 17:40 +0000
                Re: VMS Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2025-06-27 18:20 +0000
                Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-27 23:03 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-28 01:13 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-28 06:10 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-27 18:16 -0400
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-28 08:52 +0100
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-28 23:16 -0400
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-29 08:18 +0100
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-29 19:09 -0400
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-30 08:36 +0100
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-30 08:51 +0100
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-30 08:59 +0100
                Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-30 08:33 +0000
                Re: VMS John Ames <commodorejohn@gmail.com> - 2025-06-30 09:08 -0700
                Re: VMS jayjwa <jayjwa@atr2.ath.cx.invalid> - 2025-06-30 22:18 -0400
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-30 09:00 +0100
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-30 09:24 +0100
                Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-30 08:34 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-30 23:30 -0400
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-30 23:26 -0400
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-07-01 10:49 +0100
                Re: VMS Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2025-07-01 12:44 +0000
                Re: VMS Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-07-02 01:13 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-07-01 21:46 -0400
                Re: VMS Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2025-07-02 16:03 +0000
                Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-30 07:54 +0000
                Re: VMS rbowman <bowman@montana.com> - 2025-06-30 18:10 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-30 23:12 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-07-01 04:02 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-07-01 12:42 -0400
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-30 08:56 +0100
                Re: VMS Rich <rich@example.invalid> - 2025-06-27 19:40 +0000
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-20 21:19 +0100
                Re: VMS Rich <rich@example.invalid> - 2025-06-20 23:17 +0000
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-21 08:42 +0100
                Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-21 07:02 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-21 03:23 -0400
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-21 01:27 -0400
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-21 01:10 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-21 05:59 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-21 02:10 -0400
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-20 10:12 +0100
                Re: VMS Rich <rich@example.invalid> - 2025-06-20 13:39 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-21 01:23 -0400
                Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-21 06:57 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-21 03:07 -0400
                Re: VMS Richard Kettlewell <invalid@invalid.invalid> - 2025-06-21 08:45 +0100
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-22 02:32 -0400
                Re: VMS Rich <rich@example.invalid> - 2025-06-20 13:30 +0000
                Re: VMS The Natural Philosopher <tnp@invalid.invalid> - 2025-06-20 16:14 +0100
                Re: VMS Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-20 08:57 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-21 01:17 -0400
    Re: VMS c186282 <c186282@nnada.net> - 2025-06-14 22:57 -0400
      Re: VMS Rich <rich@example.invalid> - 2025-06-15 14:24 +0000
        Re: VMS c186282 <c186282@nnada.net> - 2025-06-15 22:26 -0400
          Re: VMS rbowman <bowman@montana.com> - 2025-06-16 04:30 +0000
            Re: VMS c186282 <c186282@nnada.net> - 2025-06-16 01:31 -0400
            Re: VMS Rich <rich@example.invalid> - 2025-06-18 17:40 +0000
              Re: VMS rbowman <bowman@montana.com> - 2025-06-18 23:06 +0000
              Re: VMS c186282 <c186282@nnada.net> - 2025-06-18 19:43 -0400
                Re: VMS Rich <rich@example.invalid> - 2025-06-19 01:08 +0000
                Re: VMS c186282 <c186282@nnada.net> - 2025-06-19 00:46 -0400
                Re: VMS rbowman <bowman@montana.com> - 2025-06-19 06:36 +0000

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