Support logrotate for xrdp and xrdp-sesman

[neznajka97]

xrdp version

0.9.23.1

Detailed xrdp version, build options

Logrotate renames and compesses logging file. After that it removes or creates new.

xrdp-sesman after received HUP not created new log, only compare old and new logging file name.
Can you add code, that delete file descriptor to old removed file and crete/open new logging file. 

Operating system & version

Alt Linux

Installation method

dnf / apt / zypper / pkg / etc

Which backend do you use?

Xorg

What desktop environment do you use?

MATE

Environment xrdp running on

No response

What's your client?

No response

Area(s) with issue?

No response

Steps to reproduce

Open session. Wait for logrotate to rotate xrdp-sesman.log

✔️ Expected Behavior

New file and logs in it. Closed old file descriptor

❌ Actual Behavior

Whether the new file exists or not depends on the logrotate settings. The file descriptor for the old file exists, but the file no longer exists. Logs are not written to the new file.

Anything else?

No response

[matt335672]

@neznajka97

I can see where you're coming from, but this isn't at all simple.

Both on the main log files are written by multiple processes. It's not just a question of closing a file and opening it - we'd need to synchronise access to the file from multiple processes, and we don't have all the plumbing in place to do that.

The workaround is to use syslog logging, which will stop the main log file growing.

I'll mark this as a feature request for now.