GNU bug report logs - #5300
su command does not elevate user privilege to root when run inside term/ansi-term mode

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

From: Praveen A <pravi.a <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: su command does not elevate user privilege to root when run inside 
	term/ansi-term mode
Date: Mon, 4 Jan 2010 00:54:47 +0530

Hi,

su command does not a make a normal user root when run inside term
mode. A full terminal emulator is expected to work with su.

Thanks
Praveen
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Message #8 received at 5300 <at> debbugs.gnu.org (full text, mbox):

From: Praveen A <pravi.a <at> gmail.com>
To: 5300 <at> debbugs.gnu.org
Subject: ssh also does not work in term mode
Date: Mon, 4 Jan 2010 19:52:57 +0530

I would like to be able to use emacs term mode for all things that I
now use gnome-terminal, with addition of complex rendering support in
emacs.

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<DRM> What use is a phone call, if you are unable to speak?
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Message #11 received at 5300 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Praveen A <pravi.a <at> gmail.com>
Cc: 5300 <at> debbugs.gnu.org
Subject: Re: bug#5300: su command does not elevate user privilege to root when
	run inside term/ansi-term mode
Date: Thu, 07 Jan 2010 16:30:32 -0500

Praveen A wrote:

> su command does not a make a normal user root when run inside term
> mode.

So what does happen then?

emacs -Q -f term
bash RET
bash> su
password RET

works fine for me. So does ssh.

Message #14 received at 5300 <at> debbugs.gnu.org (full text, mbox):

From: Praveen A <pravi.a <at> gmail.com>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 5300 <at> debbugs.gnu.org
Subject: Re: bug#5300: su command does not elevate user privilege to root when
	run inside term/ansi-term mode
Date: Mon, 11 Jan 2010 21:22:11 +0530

2010/1/8 Glenn Morris <rgm <at> gnu.org>:
> Praveen A wrote:
>
>> su command does not a make a normal user root when run inside term
>> mode.
>
> So what does happen then?

It just gives you the normal user shell prompt (both for ssh and su)

pravi <at> savannah:~$ ssh localhost
pravi <at> localhost's password:
Linux savannah 2.6.30-2-amd64 #1 SMP Fri Sep 25 22:16:56 UTC 2009 x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
You have mail.
Last login: Mon Jan 11 13:46:53 2010 from localhost
Connection to localhost closed.
pravi <at> savannah:~$

>
> emacs -Q -f term
> bash RET
> bash> su
> password RET
>
> works fine for me. So does ssh.
>

I'm using emacs 23.1+1-5 from debian testing, it is also failing with
a trunk built emacs too.

It just

-- 
പ്രവീണ്‍ അരിമ്പ്രത്തൊടിയില്‍
<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call, if you are unable to speak?
(as seen on /.)
Join The DRM Elimination Crew Now!
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Message #17 received at 5300 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Praveen A <pravi.a <at> gmail.com>
Cc: 5300 <at> debbugs.gnu.org
Subject: Re: bug#5300: su command does not elevate user privilege to root when
	run inside term/ansi-term mode
Date: Wed, 13 Jan 2010 22:12:22 -0500

Praveen A wrote:

> pravi <at> savannah:~$ ssh localhost
> pravi <at> localhost's password:
> Linux savannah 2.6.30-2-amd64 #1 SMP Fri Sep 25 22:16:56 UTC 2009 x86_64
>
> The programs included with the Debian GNU/Linux system are free software;
> the exact distribution terms for each program are described in the
> individual files in /usr/share/doc/*/copyright.
>
> Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
> permitted by applicable law.
> You have mail.
> Last login: Mon Jan 11 13:46:53 2010 from localhost
> Connection to localhost closed.

So, it seems to work fine, but when the shell finishes initializing it
logs out? Is there anything odd going on in your shell configuration
files (bashrc, profile, etc?)

Message #20 received at 5300 <at> debbugs.gnu.org (full text, mbox):

From: Praveen A <pravi.a <at> gmail.com>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 5300 <at> debbugs.gnu.org
Subject: Re: bug#5300: su command does not elevate user privilege to root when
	run inside term/ansi-term mode
Date: Thu, 14 Jan 2010 14:27:06 +0530

2010/1/14 Glenn Morris <rgm <at> gnu.org>:
> So, it seems to work fine, but when the shell finishes initializing it
> logs out? Is there anything odd going on in your shell configuration
> files (bashrc, profile, etc?)
>

All the configurations are default ones. Moreover both su and ssh are
working with gnome-terminal. I tried these commands in trunk compiled
emacs and packaged emacs both on fedora 12 and debian squeeze/testing,
it is failing every where.

I will try if the same problem is there on my colleagues' systems tomorrow.

-- 
പ്രവീണ്‍ അരിമ്പ്രത്തൊടിയില്‍
<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call, if you are unable to speak?
(as seen on /.)
Join The DRM Elimination Crew Now!
http://fci.wikia.com/wiki/Anti-DRM-Campaign

Message #25 received at 5300 <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 #28 received at 5300 <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
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gpg --keyserver pgp.mit.edu --recv-keys 59F29997 

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