[FTP server] Two dots (..) parent directories handling

[asdffdsa (jojothehumanmonkey)]

@ncw

The only way to do this is to do rclone serve ftp I:

imho, i would strongly suggest not to do that, i: is not equivalent to i:\

important to specify the full path = drive letter + path.
in this case, the full path
i:\ = i: + \

i demonstrate the danger of that at

Copying multiple folders across different drives/partitions on Windows

very risky, on dos/windows, a full path requires two parts, drive letter + path if no path is given, dos/windows appends the current work directory(cwd) confusing but critical: each drive letter has it own cwd default cwd= \ same command dir d: /b, different outputs :: output the files in drive letter 'd:', effective path= 'd:'+'\' c:\>dir d: /b Program Files Program Files (x86) :: change cwd of drive letter 'd:' from `\` to '\zork' c:\>cd /d d:\zork :: now switch back to c:\ d:\zork>…

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and see this debug output.
the command uses d: but that is renamed to "//?/D:/zork"

rclone serve ftp d: --addr 0.0.0.0:2222 -vv
DEBUG : rclone: Version "v1.65.0" starting with parameters ["rclone" "serve" "ftp" "d:" "--addr" "0.0.0.0:2222" "-vv"]
DEBUG : Creating backend with remote "d:"
DEBUG : fs cache: renaming cache item "d:" to be canonical "//?/D:/zork"