Possible concurrency issue when using cupsctl while printing

[giorgiga]

...or how my /etc/cups/cupsd.conf became an html file.

The weirdest thing must have happened when I executed cupsctl WebInterface=no and cups stopped working.

After a couple failed restart attempts via systemd, I looked at /etc/cups and noticed my cupsd.conf had become an html file with "WebInterface no" appended to it.

$ sudo tail /etc/cups/cupsd.conf
                                                                    <P><INPUT TYPE="SUBMIT" NAME="CHANGESETTINGS" VALUE="Change Settings"></P>
                                                                    </FORM>
                                                                  </div>
                                                                </div>
                                                              </div>
                                                            </div>
                                                            <div class="footer">CUPS and the CUPS logo are trademarks of <a href="http://www.apple.com">Apple Inc.</a> Copyright &copy; 2007-2019 Apple Inc. All rights reserved.</div>
                                                            </body>
                                                          </html>
WebInterface no

At the time I issued the cupsctl WebInterface=no I was printing (and in fact I found a half-printed page in the printer later) so I guess this must be some weird concurrency thing?

Of course replacing cupsd.conf with cups.conf.default I was able to restart cups and restore its functionality.

I'm running cups 2.3.3 on Manjaro (the package version is 2.3.3-3).

[giorgiga]

Attaching the resulting cupsd.conf, in case you want to identify what html it is.

cupsd.conf.txt

[michaelrsweet]

I think this was a bug we fixed in OpenPrinting CUPS already...