[Bug 1991436] Re: "invalid argument" error from logger command when passing messages via STDIN

[Steve Langasek]

I cannot reproduce this on jammy.

$ echo "some message" | logger -p auth.info --id="$$"
$ echo $?
0
$

(using auth.info instead of local0.info because I have the former logged
to a log file and the latter not).

** Changed in: util-linux (Ubuntu)
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to util-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1991436

Title:
  "invalid argument" error from logger command when passing messages via
  STDIN

Status in util-linux package in Ubuntu:
  Incomplete

Bug description:
  When invoking the `logger` command on Ubuntu Jammy (bsdutils 2.37.2)
  with explicit PID and passing messages via STDIN

  ```
  echo "some message" | logger -p local0.info --id="$$"
  ```

  the command produces the following error instead of sending the
  message to syslog:

  > logger: send message failed: Invalid argument

  The error does not appear when the message is passed as an argument:

  ```
  logger -p local0.info --id="$$" "some message"  # this works!
  ```

  When using process substitution the error only appears for the first
  log message:

  ```
  exec > >(logger -p local0.info --id="$$")
  echo "first message"   # throws error, message not logged
  echo "second message"  # no error, message logged correctly
  ```

  The issue does not exist in older versions (e.g. Ubuntu Xenial,
  bsdutils 2.27.1).

  Workaround: Omit `--id` and include the PID in a tag.

  ```
  echo "some message" | logger -p local0.info -t "foo[$$]"
  ```

  Expected Behavior
  -----------------

  All messages passed via STDIN should be sent to syslog without
  throwing an error.

  OS Release
  ----------

  Description:	Ubuntu 22.04 LTS
  Release:	22.04

  Package Version
  ---------------

  bsdutils:
    Installed: 2.37.2-4ubuntu3
    Candidate: 2.37.2-4ubuntu3

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1991436/+subscriptions