GNU bug report logs - #79231
sends non-printable characters to the terminal in error message

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Message #32 received at 79231 <at> debbugs.gnu.org (full text, mbox):

From: Vincent Lefevre <vincent <at> vinc17.net>
To: Antonio Diaz Diaz <antonio <at> gnu.org>
Cc: Paul Eggert <eggert <at> cs.ucla.edu>, 79231 <at> debbugs.gnu.org,
 Collin Funk <collin.funk1 <at> gmail.com>
Subject: Re: bug#79231: sends non-printable characters to the terminal in
 error message
Date: Mon, 18 Aug 2025 01:57:27 +0200

On 2025-08-18 01:53:43 +0200, Vincent Lefevre wrote:
> On 2025-08-18 01:31:38 +0200, Antonio Diaz Diaz wrote:
> > Since January 2024, GNU ed is rejecting by default file names containing
> > control chars and nobody has complained yet.
> 
> Perhaps for creation, but not as input, where GNU ed outputs
> non-printable characters to the terminal due to the file name in
> the error message. So this does not solve the problem. GNU ed is
> as buggy as gzip in this respect. I've just reported the bug.

In short, the only way to avoid the issue in any program would
be to make the Linux kernel to prevent the creation of such
file names in the first place (well, archive utilities would
also need to filter such characters for their output in case
they can appear in archives).

-- 
Vincent Lefèvre <vincent <at> vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)

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