From: Michael Albinus <michael.albinus@gmx.de>
To: Allen Li <darkfeline@felesatra.moe>
Cc: 34192@debbugs.gnu.org
Subject: bug#34192: 26.1; Bash 5.0 breaks TRAMP sudo
Date: Thu, 21 Feb 2019 11:39:43 +0100 [thread overview]
Message-ID: <87imxd5ssw.fsf@gmx.de> (raw)
In-Reply-To: <CADbSrJy3V5isZSHmUfYgF3Bv5UkCgBRAtTOHgAqB331+-4-2oQ@mail.gmail.com>
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-------------------- Start of forwarded message --------------------
Subject: Re: bash 5.0 dies with HISTSIZE=0
From: Chet Ramey <chet.ramey@case.edu>
Date: Wed, 20 Feb 2019 16:23:23 -0500
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On 2/20/19 8:10 AM, Michael Albinus wrote:
> Bash Version: 5.0
> Patch Level: 0
> Release Status: release
>
> Description:
> This is an error report from an Emacs/Tramp user. With bash 5.0, bash
> 5.0 dies when HISTSIZE is set to 0. Setting it to 1 seems to work. Using
> bash 4.4 works as well. <See https://debbugs.gnu.org/34192> for details.
>
> Repeat-By:
> The following is an extract from what Tramp does inside Emacs. I could
> reproduce it in a a shell:
>
>
> # env TERM='dumb' INSIDE_EMACS='27.0.50,tramp:2.4.2-pre' ENV='' HISTFILE='' HISTFILESIZE=0 HISTSIZE=0 PROMPT_COMMAND='' PS1=\#\$\ PS2='' PS3='' /home/albinus/src/bash-5.0/bash -norc -noprofile
> #$ tramp_perl_file_name_all_completions () {
> \perl -e '
> opendir(d, $ARGV[0]) || die("$ARGV[0]: $!\nfail\n");
Thanks for the report. Try the attached patch and see if that fixes the
crash.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/
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*** ../bash-5.0-patched/bashhist.c 2018-07-05 22:41:14.000000000 -0400
--- bashhist.c 2019-02-20 16:20:04.000000000 -0500
***************
*** 561,573 ****
if (!history_expansion_inhibited && history_expansion && history_expansion_p (line))
{
/* If we are expanding the second or later line of a multi-line
command, decrease history_length so references to history expansions
in these lines refer to the previous history entry and not the
current command. */
if (history_length > 0 && command_oriented_history && current_command_first_line_saved && current_command_line_count > 1)
history_length--;
expanded = history_expand (line, &history_value);
if (history_length >= 0 && command_oriented_history && current_command_first_line_saved && current_command_line_count > 1)
! history_length++;
if (expanded)
--- 561,576 ----
if (!history_expansion_inhibited && history_expansion && history_expansion_p (line))
{
+ int old_len;
+
/* If we are expanding the second or later line of a multi-line
command, decrease history_length so references to history expansions
in these lines refer to the previous history entry and not the
current command. */
+ old_len = history_length;
if (history_length > 0 && command_oriented_history && current_command_first_line_saved && current_command_line_count > 1)
history_length--;
expanded = history_expand (line, &history_value);
if (history_length >= 0 && command_oriented_history && current_command_first_line_saved && current_command_line_count > 1)
! history_length = old_len;
if (expanded)
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-------------------- End of forwarded message --------------------
prev parent reply other threads:[~2019-02-21 10:39 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-24 22:14 bug#34192: 26.1; Bash 5.0 breaks TRAMP sudo Allen Li
2019-01-28 8:19 ` Michael Albinus
2019-01-28 8:58 ` Allen Li
2019-01-28 9:12 ` Michael Albinus
2019-01-29 5:48 ` Allen Li
2019-01-29 10:04 ` Michael Albinus
2019-02-03 0:21 ` Allen Li
2019-02-04 11:53 ` Michael Albinus
2019-02-07 7:04 ` Allen Li
2019-02-07 9:22 ` Michael Albinus
2019-02-08 8:45 ` Allen Li
2019-02-08 10:44 ` Michael Albinus
2019-02-17 3:11 ` Allen Li
2019-02-20 14:43 ` Michael Albinus
2019-02-21 10:38 ` Michael Albinus
2019-02-21 11:20 ` Michael Albinus
2019-02-21 10:39 ` Michael Albinus [this message]
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