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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: Control of fan-speed on Lenovo Thinkpads
Date: Wed, 31 Mar 2021 16:19:19 -0400	[thread overview]
Message-ID: <jwveefv84mu.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <YGTVZotTx6DKCtJY@protected.localdomain> (Jean Louis's message of "Wed, 31 Mar 2021 23:02:46 +0300")

> * Stefan Monnier <monnier@iro.umontreal.ca> [2021-03-31 17:24]:
>> > 	(let* ((sudo `(call-process "sudo" nil ,sudo-buffer t "su" "-c" "--" "root" "-c" ,command))
>> > 	       (status (eval sudo))
>> 
>> Why?  No kitten needs to suffer here:
>> 
>>     (let* ((status (call-process "sudo" nil sudo-buffer t "su" "-c" "--" "root" "-c" command))
>
> In that specific case yes. It works, I changed it. But it defeats
> itself in purpose, do you see? That COMMAND is parameter to `su' which
> invokes default user's shell. I don't find it bad, it just defeats the
> purpose of `call-process'.

You still have the risk of "command" being incorrect because of
messed up quoting, but not because of the shell you yourself invoke: just
because of the shell invoked by `su`.  And since "command" is what you
receive you can't do much better than that anyway.


        Stefan




  reply	other threads:[~2021-03-31 20:19 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-29 20:36 Control of fan-speed on Lenovo Thinkpads Jean Louis
2021-03-30  8:12 ` Michael Albinus
2021-03-30  9:42   ` Jean Louis
2021-03-30  9:44   ` Jean Louis
2021-03-30 10:13     ` Michael Albinus
2021-03-30 10:23       ` Finding simpler better sudo for Emacs Jean Louis
2021-03-30 10:34         ` Michael Albinus
2021-03-30 10:43           ` Jean Louis
2021-03-30 10:52             ` Michael Albinus
2021-03-30 11:05               ` Jean Louis
2021-03-30 11:13                 ` Michael Albinus
2021-03-30 11:40                   ` Jean Louis
2021-03-30 15:01   ` Control of fan-speed on Lenovo Thinkpads Stefan Monnier
2021-03-30 20:06     ` Jean Louis
2021-03-31  1:23       ` Stefan Monnier
2021-03-31  5:35         ` Jean Louis
2021-03-31 14:23           ` Stefan Monnier
2021-03-31 20:02             ` Jean Louis
2021-03-31 20:19               ` Stefan Monnier [this message]
2021-04-01  9:46                 ` Jean Louis
     [not found] <8735wcogti.fsf@gmail.com>
     [not found] ` <YGNq8IGh12I+QL9I@protected.localdomain>
2021-03-31  5:49   ` Utkarsh Singh

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