unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: jporterbugs@gmail.com, larsi@gnus.org, bug-gnulib@gnu.org,
	57129@debbugs.gnu.org, Bruno Haible <bruno@clisp.org>
Subject: bug#57129: 29.0.50; Improve behavior of conditionals in Eshell
Date: Tue, 16 Aug 2022 09:54:25 -0700	[thread overview]
Message-ID: <206e38df-2db4-a46a-e0ff-952bc8ab939c__14884.6515499585$1660668941$gmane$org@cs.ucla.edu> (raw)
In-Reply-To: <83wnb8dukz.fsf@gnu.org>

On 8/16/22 09:25, Eli Zaretskii wrote:
> The programmer didn't
> expect that because it is natural to expect each call to a function
> that creates a temporary file to create a file under a new name, not
> reuse the same name.

Regardless of whether the programmer expects a random name or a 
predictable-but-unique name, there are only a finite number of names to 
choose from so the programmer must take into account the possibility 
that the chosen name clashes with names that the programmer would prefer 
not to be chosen.

This means an Emacs patch such as [1] is needed regardless of whether 
Gnulib's gen_tempname is changed to be more random than it is. Although 
it's true that the bug fixed by [1] is less likely if gen_tempname 
generates more-random names, the bug can occur no matter what we do 
about gen_tempname.

[1] 
https://debbugs.gnu.org/cgi/bugreport.cgi?filename=0001-Don-t-create-temp-file-with-same-name-as-visited.patch;bug=57129;msg=59;att=2





  parent reply	other threads:[~2022-08-16 16:54 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-11  2:43 bug#57129: 29.0.50; Improve behavior of conditionals in Eshell Jim Porter
2022-08-11  2:46 ` Jim Porter
2022-08-12 15:22   ` Lars Ingebrigtsen
2022-08-13  5:14     ` Jim Porter
2022-08-13  7:01       ` Eli Zaretskii
2022-08-13 18:56         ` Jim Porter
2022-08-14  5:07           ` Eli Zaretskii
2022-08-14  5:37             ` Jim Porter
2022-08-14  7:30               ` Eli Zaretskii
2022-08-14 21:40                 ` Jim Porter
2022-08-15 12:13                   ` Eli Zaretskii
2022-08-15 16:14                     ` Jim Porter
2022-08-15 16:49                       ` Eli Zaretskii
2022-08-15 18:08                         ` Jim Porter
2022-08-15 18:21                           ` Eli Zaretskii
2022-08-15 18:30                             ` Jim Porter
2022-08-15 18:58                               ` Eli Zaretskii
2022-08-15 20:55                                 ` Paul Eggert
     [not found]                                 ` <af0af29b-2362-77db-081e-046158937808@cs.ucla.edu>
2022-08-15 21:22                                   ` Bruno Haible
2022-08-16 11:04                                   ` Eli Zaretskii
     [not found]                                   ` <835yish2l1.fsf@gnu.org>
2022-08-16 13:35                                     ` Bruno Haible
     [not found]                                     ` <1871347.6tgchFWduM@nimes>
2022-08-16 13:51                                       ` Eli Zaretskii
     [not found]                                       ` <838rnofgad.fsf@gnu.org>
2022-08-16 14:40                                         ` Bruno Haible
2022-08-16 16:25                                           ` Eli Zaretskii
     [not found]                                           ` <83wnb8dukz.fsf@gnu.org>
2022-08-16 16:54                                             ` Paul Eggert [this message]
     [not found]                                             ` <206e38df-2db4-a46a-e0ff-952bc8ab939c@cs.ucla.edu>
2022-08-16 17:04                                               ` Eli Zaretskii
     [not found]                                               ` <83sflwdsr2.fsf@gnu.org>
2022-08-16 17:30                                                 ` Paul Eggert
2022-08-16 17:41                                                 ` Eli Zaretskii
     [not found]                                                 ` <ceeeaa86-6199-93b1-ff65-bbd3e531e235@cs.ucla.edu>
2022-08-16 17:56                                                   ` Eli Zaretskii
2022-08-16 17:25                                             ` Paul Eggert
2022-08-16 17:29                                             ` Bruno Haible
     [not found]                                             ` <f329244a-cba7-65cd-2e5d-2630eba3e9e9@cs.ucla.edu>
2022-08-16 17:47                                               ` Eli Zaretskii
2022-08-16 19:11                                                 ` Paul Eggert
     [not found]                                                 ` <d95734ab-6bbc-7403-c1f8-fbf742badda4@cs.ucla.edu>
2022-08-16 20:12                                                   ` Bruno Haible
2022-08-17 11:08                                                   ` Eli Zaretskii
     [not found]                                                   ` <83h72bdt4z.fsf@gnu.org>
2022-08-18  6:05                                                     ` Paul Eggert
     [not found]                                                     ` <57b8f10f-8e9b-5951-e5ad-8cba2a8cb569@cs.ucla.edu>
2022-08-18  6:44                                                       ` Eli Zaretskii
     [not found]                                             ` <2594092.Isy0gbHreE@nimes>
2022-08-16 17:52                                               ` Eli Zaretskii
2022-08-16 20:06                                                 ` Bruno Haible
     [not found]                                                 ` <2606289.q0ZmV6gNhb@nimes>
2022-08-17 11:29                                                   ` Eli Zaretskii
2022-08-16 19:59                                         ` Bruno Haible
     [not found]                                         ` <2135151.C4sosBPzcN@nimes>
2022-08-16 20:53                                           ` Paul Eggert
2022-08-21 16:20                                             ` Bruno Haible
2022-08-21 16:32                                               ` Eli Zaretskii
2022-08-21 17:17                                               ` Bruno Haible
2022-08-22 20:47                                                 ` Paul Eggert
     [not found]                                                 ` <2dc7ede0-eca7-baf5-f89a-f5d292b80808@cs.ucla.edu>
2022-08-23  0:13                                                   ` Bruno Haible
     [not found]                                                   ` <3893771.2iPT33SAM4@nimes>
2022-08-23 11:18                                                     ` Eli Zaretskii
     [not found]                                                     ` <831qt79pjj.fsf@gnu.org>
2022-08-23 14:49                                                       ` Bruno Haible
2022-08-23 16:07                                                         ` Eli Zaretskii
2022-08-20 18:03                                 ` Jim Porter
2022-08-20 18:14                                   ` Eli Zaretskii
2022-08-20 18:49                                     ` Jim Porter
2022-08-24 21:41                                   ` Jim Porter
2022-08-26  5:10                                     ` Jim Porter
2023-03-16  5:35                                       ` Jim Porter
2022-08-14  5:03       ` Sean Whitton

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='206e38df-2db4-a46a-e0ff-952bc8ab939c__14884.6515499585$1660668941$gmane$org@cs.ucla.edu' \
    --to=eggert@cs.ucla.edu \
    --cc=57129@debbugs.gnu.org \
    --cc=bruno@clisp.org \
    --cc=bug-gnulib@gnu.org \
    --cc=eliz@gnu.org \
    --cc=jporterbugs@gmail.com \
    --cc=larsi@gnus.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).