[Bug 2138761] [NEW] sudo-rs --prompt prints the wrong thing

[b00n]

Public bug reported:

Observed behavior:
$ sudo --prompt "XXX" echo
[sudo: XXX] Password: 

Expected behavior:
$ sudo --prompt "XXX" echo
XXX Password: 

Discussion:

My reading of the manual is it should print "XXX" instead of "[sudo:
XXX]".

Environment SUDO_PROMPT has the same bug.

Emacs and some other tools try to hide the password you type, and rely
on the prompt being a recognizable form.  From:

https://emacs.stackexchange.com/questions/76023/at-the-time-of-prompting-for-a-password-from-a-subordinate-shell-sometimes-em
...
;; Ubuntu's sudo prompts like `[sudo] password for user:'
...

Current Emacs (from the 25.10 Ubuntu repo) does not hide the password
because the emacs-rs prompt is different than sudo.  The current
--prompt behavior cannot reproduce the expected prompt.  For example,

$ sudo --prompt '[sudo] password for user:' echo
[sudo: [sudo] password for user:] Password: 

So there may be a second bug, that sudo-rs is using a different prompt
than standard Ubuntu "sudo".  I tripped on the issue with Emacs, but
other tools may also fail due to the default prompt.


$ lsb_release -rd
Description:	Ubuntu 25.10
Release:	25.10
$ which sudo
/usr/bin/sudo
$ sudo --version
sudo-rs 0.2.8
$ apt-cache policy sudo-rs
sudo-rs:
  Installed: 0.2.8-1ubuntu5.2
  Candidate: 0.2.8-1ubuntu5.2
  Version table:
 *** 0.2.8-1ubuntu5.2 500
        500 http://us.archive.ubuntu.com/ubuntu questing-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu questing-security/main amd64 Packages
        100 /var/lib/dpkg/status
     0.2.8-1ubuntu5 500
        500 http://us.archive.ubuntu.com/ubuntu questing/main amd64 Packages

I tried submitting this bug as "sudo-rs" but the tool says "sudo-rs"
does not exist in Ubuntu, even though apt uses sudo-rs.

** Affects: rust-sudo-rs (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2138761

Title:
  sudo-rs --prompt  prints the wrong thing

Status in rust-sudo-rs package in Ubuntu:
  New

Bug description:
  Observed behavior:
  $ sudo --prompt "XXX" echo
  [sudo: XXX] Password: 

  Expected behavior:
  $ sudo --prompt "XXX" echo
  XXX Password: 

  Discussion:

  My reading of the manual is it should print "XXX" instead of "[sudo:
  XXX]".

  Environment SUDO_PROMPT has the same bug.

  Emacs and some other tools try to hide the password you type, and rely
  on the prompt being a recognizable form.  From:

  https://emacs.stackexchange.com/questions/76023/at-the-time-of-prompting-for-a-password-from-a-subordinate-shell-sometimes-em
  ...
  ;; Ubuntu's sudo prompts like `[sudo] password for user:'
  ...

  Current Emacs (from the 25.10 Ubuntu repo) does not hide the password
  because the emacs-rs prompt is different than sudo.  The current
  --prompt behavior cannot reproduce the expected prompt.  For example,

  $ sudo --prompt '[sudo] password for user:' echo
  [sudo: [sudo] password for user:] Password: 

  So there may be a second bug, that sudo-rs is using a different prompt
  than standard Ubuntu "sudo".  I tripped on the issue with Emacs, but
  other tools may also fail due to the default prompt.

  
  $ lsb_release -rd
  Description:	Ubuntu 25.10
  Release:	25.10
  $ which sudo
  /usr/bin/sudo
  $ sudo --version
  sudo-rs 0.2.8
  $ apt-cache policy sudo-rs
  sudo-rs:
    Installed: 0.2.8-1ubuntu5.2
    Candidate: 0.2.8-1ubuntu5.2
    Version table:
   *** 0.2.8-1ubuntu5.2 500
          500 http://us.archive.ubuntu.com/ubuntu questing-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu questing-security/main amd64 Packages
          100 /var/lib/dpkg/status
       0.2.8-1ubuntu5 500
          500 http://us.archive.ubuntu.com/ubuntu questing/main amd64 Packages

  I tried submitting this bug as "sudo-rs" but the tool says "sudo-rs"
  does not exist in Ubuntu, even though apt uses sudo-rs.

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