FTP server doesn't support LIST -a nor does it return an error

[dc42]

Duet Forum Discussion Thread

https://forum.duet3d.com/topic/32956/ftp-does-not-properly-respond-to-list-a

Which Duet products are you using?

• [ ] Duet2-Wifi
• [ ] Duet2-Ethernet
• [ ] Duet Expansion Breakout Board
• [ ] Duex2
• [ ] Duex5
• [ ] Duet2-Maestro
• [ ] Maestro Dual Driver Expansion
• [ ] Duet3-6HC
• [ ] Duet3-3HC
• [ ] Duet3-1XD
• [ ] Duet3-1LC
• [ ] Duet3-Tool Distribution Board
• [ ] Duet3-Mini5+
• [ ] Duet3-Mini2+
• [ ] Raspberry Pi or other SBC
• [ ] SmartEffector
• [ ] Magnetic Filament Sensor
• [ ] Laser Filament Sensor
• [ ] PT100 Daughterboard
• [ ] Thermocouple Daughterboard
• [ ] PanelDue
• [ ] Other
• [ ] None

Firmware Version

3.5.0-beta.4

Duet Web Control Version

3.5.0-beta.4

Are you using a Single Board Computer (RaspberryPi) with your Duet?

• [ ] Yes I use a SBC.
• [X] No I do not use a SBC.

What happened?

Some FTP servers support a non-standard extension "LIST -a" and some FTP clients try to use it. Unfortunately the RRF FTP server treats "-a" as the directory name but doesn't report an error when it is not found. It should return an error if the directory argument of the LIST command is not found.

[T3P3]

Closed as presumed fixed after no response from the original reporter on the forum.