[Bug 2117771] [NEW] who, pinky are empty - need to talk to logind

[Julian Andres Klode]

Public bug reported:

The `who` and `pinky` utilities need to be ported from the - I believe -
utmp database to talk to `systemd-logind`:

```
jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> who
jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> gnuwho
jak      seat0        2025-07-23 16:13
jak      tty2         2025-07-23 16:13
jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel) [127]> pinky
Login    Name                TTY       Idle   When             Where
jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> gnupinky
Login    Name                 TTY      Idle   When             Where
jak      Julian Andres Klode ?seat0    ?????  2025-07-23 16:13
jak      Julian Andres Klode *tty2     01:16  2025-07-23 16:13
```

** Affects: coreutils
     Importance: Unknown
         Status: Unknown

** Affects: rust-coreutils (Ubuntu)
     Importance: Medium
         Status: Triaged

** Bug watch added: github.com/uutils/coreutils/issues #8376
   https://github.com/uutils/coreutils/issues/8376

** Also affects: coreutils via
   https://github.com/uutils/coreutils/issues/8376
   Importance: Unknown
       Status: Unknown

** Changed in: rust-coreutils (Ubuntu)
       Status: New => Triaged

** Changed in: rust-coreutils (Ubuntu)
   Importance: Undecided => Medium

** Description changed:

  The `who` and `pinky` utilities need to be ported from the - I believe -
  utmp database to talk to `systemd-logind`:
- 
  
  ```
  jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> who
  jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> gnuwho
  jak      seat0        2025-07-23 16:13
  jak      tty2         2025-07-23 16:13
- jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> pinkgy
- pinkgy: command not found
  jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel) [127]> pinky
  Login    Name                TTY       Idle   When             Where
  jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> gnupinky
  Login    Name                 TTY      Idle   When             Where
  jak      Julian Andres Klode ?seat0    ?????  2025-07-23 16:13
  jak      Julian Andres Klode *tty2     01:16  2025-07-23 16:13
  ```

-- 
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https://bugs.launchpad.net/bugs/2117771

Title:
  who, pinky are empty - need to talk to logind

Status in coreutils:
  Unknown
Status in rust-coreutils package in Ubuntu:
  Triaged

Bug description:
  The `who` and `pinky` utilities need to be ported from the - I believe
  - utmp database to talk to `systemd-logind`:

  ```
  jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> who
  jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> gnuwho
  jak      seat0        2025-07-23 16:13
  jak      tty2         2025-07-23 16:13
  jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel) [127]> pinky
  Login    Name                TTY       Idle   When             Where
  jak at jak-t14-g3 ~/P/U/rust-coreutils-0.1.0+git20250711.2ba3a33 (ubuntu/devel)> gnupinky
  Login    Name                 TTY      Idle   When             Where
  jak      Julian Andres Klode ?seat0    ?????  2025-07-23 16:13
  jak      Julian Andres Klode *tty2     01:16  2025-07-23 16:13
  ```

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