> I am writing an embedded FTP daemon for a work-related project.  My problem
> is that no GUI-based ftp client can access my directory listings.

Best documentation of FTP I have seen is at:

http://cr.yp.to/ftp.html

which includes a description of 'typical' list output format:

http://cr.yp.to/ftp/list/binls.html

Regards,

Giles