The current DOS path handling in the FTP server is kind of broken - it
works for some clients, but not for others. Ironically, the smarter the
FTP client the less likely it is to work.
The problem has to do with exposing drive letters in the path.
Filezilla in particular detects the drive letter and assumes DOS style
paths, with backslashes as the directory delimiter. If I use a drive
letter but use forward slashes in the FTP server Filezilla gets confused
but then the Unix clients are happy. There is no winning unless I start
putting some non-standard mode selection commands in.
The universal solution is to make everything look like a Unix
fileystem. To handle drive letters I'm thinking of using something like
/drive_x/ as the first part of the path. For example, if your current
working directory is "/" then you are at the "root" with no logged
drive. All you can do is see a list of available drives with each being
shown in /drive_x/ format. If you wanted to traverse the C: drive you
would go to "/drive_c/" and work from there.
A side effect of this is that the root directory ('/') is virtual, and
really doesn't exist. When you are in the root directory you have to CD
to a drive letter or do a file list; there are no other file-type
commands you can use there.
This is kind of a big change so I'd like to see if anybody can spot any
flaws in it ahead of time. Users "in a sandbox" are not affected, as
they have always seen a Unix style path and have not been exposed to
drive letters.
Thanks,
Mike
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