GNU bug report logs - #6302
24.0.50; Unable to use su in term.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.50; Unable to use su in term.
Date: Sat, 29 May 2010 07:24:31 +0200

Hi,
i am unable to log to root account with su in term or ansi-term.
No problem in eshell and shell, so that is specific to term.

,----
| thierry <at> tux ~ $ su
| Password: 
| thierry <at> tux ~ $ echo $UID
| 1000
| thierry <at> tux ~ $ groups
| wheel cron audio cdrom video usb users portage thierry plugdev \
| cdburners shutdown vboxusers games hibernate fuzzyocr
`----



In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.18.9)
 of 2010-05-25 on tux
Windowing system distributor `The X.Org Foundation', version 11.0.10706000
configured using `configure  '--prefix=/usr' '--build=i686-pc-linux-gnu' '--host=i686-pc-linux-gnu' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib' '--program-suffix=-emacs-24' '--infodir=/usr/share/info/emacs-24' '--with-crt-dir=/usr/lib' '--with-sound' '--with-x' '--without-gconf' '--without-toolkit-scroll-bars' '--with-gif' '--with-jpeg' '--with-png' '--with-rsvg' '--with-tiff' '--with-xpm' '--with-xft' '--without-libotf' '--without-m17n-flt' '--with-x-toolkit=gtk' '--without-hesiod' '--without-kerberos' '--without-kerberos5' '--with-gpm' '--with-dbus' 'build_alias=i686-pc-linux-gnu' 'host_alias=i686-pc-linux-gnu' 'CFLAGS=-march=i686 -pipe -O2' 'LDFLAGS=-Wl,-O1''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  value of $LC_CTYPE: fr_FR.UTF-8
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: fr_FR.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Dired by name

Minor modes in effect:
  global-undo-tree-mode: t
  undo-tree-mode: t
  minibuffer-depth-indicate-mode: t
  auto-image-file-mode: t
  shell-dirtrack-mode: t
  show-paren-mode: t
  display-battery-mode: t
  display-time-mode: t
  diff-auto-refine-mode: t
  savehist-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<return> e c h o SPC $ U I D <return> C-d C-d C-x k 
<return> M-x r e p o r t <return>

Recent messages:
Loading em-cmpl...done
Loading em-dirs...done
Loading em-glob...done
Loading em-hist...done
Loading em-ls...done
Loading em-prompt...done
Loading em-script...done
Loading em-unix...done
The mark is not set now, so there is no region


Load-path shadows:
/home/thierry/elisp/lua-mode/lua-mode hides /usr/share/emacs/site-lisp/lua-mode/lua-mode
~/elisp/g-client/json hides /usr/share/emacs/24.0.50/lisp/json
/usr/share/emacs/site-lisp/flim/hex-util hides /usr/share/emacs/24.0.50/lisp/hex-util
/usr/share/emacs/site-lisp/flim/sha1 hides /usr/share/emacs/24.0.50/lisp/sha1
/usr/share/emacs/site-lisp/flim/md4 hides /usr/share/emacs/24.0.50/lisp/md4
/usr/share/emacs/site-lisp/flim/ntlm hides /usr/share/emacs/24.0.50/lisp/net/ntlm
/usr/share/emacs/site-lisp/flim/hmac-def hides /usr/share/emacs/24.0.50/lisp/net/hmac-def
/usr/share/emacs/site-lisp/flim/sasl-digest hides /usr/share/emacs/24.0.50/lisp/net/sasl-digest
/usr/share/emacs/site-lisp/flim/sasl hides /usr/share/emacs/24.0.50/lisp/net/sasl
/usr/share/emacs/site-lisp/flim/hmac-md5 hides /usr/share/emacs/24.0.50/lisp/net/hmac-md5
/usr/share/emacs/site-lisp/flim/sasl-cram hides /usr/share/emacs/24.0.50/lisp/net/sasl-cram
/usr/share/emacs/site-lisp/flim/sasl-ntlm hides /usr/share/emacs/24.0.50/lisp/net/sasl-ntlm
/home/thierry/elisp/emms/lisp/tq hides /usr/share/emacs/24.0.50/lisp/emacs-lisp/tq

Features:
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add-log diff-mode lisppaste-extension lisppaste xml-rpc url-http tls
url-auth url-gw xml htmlize-hack htmlize muse-colors muse-docbook
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muse-wiki cus-edit cus-start cus-load muse-publish muse-project
muse-protocols muse-regexps muse muse-nested-tags muse-mode
muse-autoloads org-config-thierry cal-china lunar solar cal-dst
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epg-config auth-source dired gnus-async nntp gnus-sum nnoo gnus-group
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mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045
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usage-memo desktop midnight punycode idna mybest-theme edmacro kmacro
eev-thierry iterator eev-all eev-mini-steps eev-browse-url eev-langs
eev-compose eev-glyphs disp-table eev-insert eev-steps eev-bounded eev
easy-mmode advice help-fns advice-preload cl cl-19 site-gentoo w3m-wget
preview-latex tex-site auto-loads tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image fringe
lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mldrag mouse jit-lock font-lock syntax facemenu font-core frame cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese hebrew greek romanian slovak czech european ethiopic
indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
abbrev loaddefs button minibuffer faces cus-face files text-properties
overlay md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
dynamic-setting font-render-setting gtk x-toolkit x multi-tty emacs)

-- 
Thierry Volpiatto
Gpg key: http://pgp.mit.edu/

Message #8 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
Cc: 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Thu, 03 Jun 2010 18:46:00 -0400

merge 5300 6302
stop

Thierry Volpiatto wrote:

> i am unable to log to root account with su in term or ansi-term.

Sounds like it might be the same issue as

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=5300

(I still cannot reproduce it.)

Message #13 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Fri, 04 Jun 2010 09:33:23 +0200

Glenn Morris <rgm <at> gnu.org> writes:

> merge 5300 6302
> stop
>
> Thierry Volpiatto wrote:
>
>> i am unable to log to root account with su in term or ansi-term.
>
> Sounds like it might be the same issue as
>
> http://debbugs.gnu.org/cgi/bugreport.cgi?bug=5300

Yes it is the same

> (I still cannot reproduce it.)

I found what is not working.

I use an alias in my .bashrc to force emacs shell using the word Password
as prompt for su command:

,----
| alias su="LC_ALL=C su -l"
`----

Emacs shell support that but term doesn't.
Without that alias or when running sh instead of bash term work as expected.

1) Running term with the alias:

,----
| thierry <at> tux ~ $ echo $UID
| 1000
| thierry <at> tux ~ $ su
| Password: 
| thierry <at> tux ~ $ echo $UID
| 1000
`----

2) Running term without alias:

,----
| thierry <at> tux ~ $ echo $UID
| 1000
| thierry <at> tux ~ $ su
| Mot de passe : 
| tux thierry # echo $UID
| 0
`----

3) Running Emacs shell with the alias (M-x shell):

,----
| thierry <at> tux ~ $ echo $UID
| 1000
| thierry <at> tux ~ $ su
| Password: 
| tux ~ # echo $UID
| 0
`----


-- 
Thierry Volpiatto
Gpg key: http://pgp.mit.edu/

Message #16 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
Cc: Glenn Morris <rgm <at> gnu.org>, 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Fri, 04 Jun 2010 09:35:50 -0400

> I found what is not working.
> I use an alias in my .bashrc to force emacs shell using the word Password
> as prompt for su command:

> ,----
> | alias su="LC_ALL=C su -l"
> `----

> Emacs shell support that but term doesn't.

How 'bout taking the alias out of the question and try

   thierry <at> tux ~ $ LC_ALL=C su -l
and
   thierry <at> tux ~ $ LC_ALL=C su
and
   thierry <at> tux ~ $ su -l

> Without that alias or when running sh instead of bash term work as expected.

What do you mean by "running sh instead of bash"?
Do you mean the shell from which you execute "su" or the shell of the
user to which you're su-ing?

Also, can you M-x trace-function-background RET term-emulate-terminal
RET, reproduce the problem and then show us the *trace-output*?


        Stefan

Message #19 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Glenn Morris <rgm <at> gnu.org>, 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Fri, 04 Jun 2010 16:53:54 +0200

Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

>> I found what is not working.
>> I use an alias in my .bashrc to force emacs shell using the word Password
>> as prompt for su command:
>
>> ,----
>> | alias su="LC_ALL=C su -l"
>> `----
>
>> Emacs shell support that but term doesn't.
>
> How 'bout taking the alias out of the question and try

Alias is disabled and i start with a new M-x term:

>    thierry <at> tux ~ $ LC_ALL=C su -l
Fail.

> and
>    thierry <at> tux ~ $ LC_ALL=C su
Yes it is working.

> and
>    thierry <at> tux ~ $ su -l
Fail. (same with --login and -)

So it's clear that come from the -l option of su.

>> Without that alias or when running sh instead of bash term work as expected.
>
> What do you mean by "running sh instead of bash"?
M-x term ==> Run program: /bin/sh
(same doesn't work with su -l)

> Do you mean the shell from which you execute "su" or the shell of the
> user to which you're su-ing?
The first.

> Also, can you M-x trace-function-background RET term-emulate-terminal
> RET, reproduce the problem and then show us the *trace-output*?
I can't find function `term-emulate-terminal'.

-- 
Thierry Volpiatto
Gpg key: http://pgp.mit.edu/

Message #22 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
Cc: Stefan Monnier <monnier <at> iro.umontreal.ca>, 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Thu, 10 Jun 2010 01:08:51 -0400

Thierry Volpiatto wrote:

>>    thierry <at> tux ~ $ su -l
> Fail. (same with --login and -)
>
> So it's clear that come from the -l option of su.

Is there anything odd in root's ~/.bash_profile (or whatever the
appropriate config file for root login shells is)?

Does it work to su -l to a non-root user?
One with no shell config files?

Can you put some debug statements in the shell config files to find
out if they get sourced at all? If so, where do things go wrong?

>> Also, can you M-x trace-function-background RET term-emulate-terminal
>> RET, reproduce the problem and then show us the *trace-output*?
> I can't find function `term-emulate-terminal'.

? It's in term.el.

Message #25 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
To: Glenn Morris <rgm <at> gnu.org>
Cc: Stefan Monnier <monnier <at> iro.umontreal.ca>, 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Thu, 10 Jun 2010 09:17:37 +0200

Glenn Morris <rgm <at> gnu.org> writes:

> Thierry Volpiatto wrote:
>
>>>    thierry <at> tux ~ $ su -l
>> Fail. (same with --login and -)
>>
>> So it's clear that come from the -l option of su.
>
> Is there anything odd in root's ~/.bash_profile (or whatever the
> appropriate config file for root login shells is)?
I have no .bash* files in /root.

> Does it work to su -l to a non-root user?
I have not such user, only me and root, so i can't test.
I could create a new user just for test purpose, but i think it's not
useful, if it was a problem related to general config of my system,
other shell would not work, but it is not the case, M-x shell and eshell
can su ==> root without problems.

> One with no shell config files?
>
> Can you put some debug statements in the shell config files to find
> out if they get sourced at all? If so, where do things go wrong?
Yes, .bashrc and .bash_profile are sourced.

>>> Also, can you M-x trace-function-background RET term-emulate-terminal
>>> RET, reproduce the problem and then show us the *trace-output*?
>> I can't find function `term-emulate-terminal'.
>
> ? It's in term.el.
Ok i have it now.

,----
| ======================================================================
| 1 -> term-emulate-terminal: proc=#<process *ansi-term*> str="Password: "
| 1 <- term-emulate-terminal: t
| ======================================================================
| 1 -> term-emulate-terminal: proc=#<process *ansi-term*> str="
| "
| 1 <- term-emulate-terminal: t
| ======================================================================
| 1 -> term-emulate-terminal: proc=#<process *ansi-term*> str="//home/thierry
| thierry <at> tux ~ $ "
| 1 <- term-emulate-terminal: t
| ======================================================================
`----


-- 
Thierry Volpiatto
Gpg key: http://pgp.mit.edu/

Message #28 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
To: Glenn Morris <rgm <at> gnu.org>
Cc: Stefan Monnier <monnier <at> iro.umontreal.ca>, 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Thu, 10 Jun 2010 11:05:47 +0200

Glenn Morris <rgm <at> gnu.org> writes:

> Does it work to su -l to a non-root user?
From root:
su thierry ==> ok
su -l thierry ==> fail

From $user to root, su work but su -l don't.

-- 
Thierry Volpiatto
Gpg key: http://pgp.mit.edu/

Message #31 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
To: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
Cc: Glenn Morris <rgm <at> gnu.org>, 5300 <at> debbugs.gnu.org,
	Stefan Monnier <monnier <at> iro.umontreal.ca>, 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Sun, 18 Sep 2011 12:20:00 +0200

Thierry Volpiatto <thierry.volpiatto <at> gmail.com> writes:

> Alias is disabled and i start with a new M-x term:
>
>>    thierry <at> tux ~ $ LC_ALL=C su -l
> Fail.

I'm unable to reproduce this in the current bzr Emacs.  Do you still see
this problem?

-- 
(domestic pets only, the antidote for overdose, milk.)
  bloggy blog http://lars.ingebrigtsen.no/

Message #34 received at 6302 <at> debbugs.gnu.org (full text, mbox):

From: Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
To: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
Cc: Glenn Morris <rgm <at> gnu.org>, 5300 <at> debbugs.gnu.org,
	Stefan Monnier <monnier <at> iro.umontreal.ca>, 6302 <at> debbugs.gnu.org
Subject: Re: bug#6302: 24.0.50; Unable to use su in term.
Date: Sun, 18 Sep 2011 19:53:34 +0200

Lars Magne Ingebrigtsen <larsi <at> gnus.org> writes:

> Thierry Volpiatto <thierry.volpiatto <at> gmail.com> writes:
>
>> Alias is disabled and i start with a new M-x term:
>>
>>>    thierry <at> tux ~ $ LC_ALL=C su -l
>> Fail.
>
> I'm unable to reproduce this in the current bzr Emacs.  Do you still see
> this problem?
IIRC this have been fixed long time ago now, even in emacs-23 branch.

-- 
A+ Thierry
Get my Gnupg key:
gpg --keyserver pgp.mit.edu --recv-keys 59F29997 

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