ange-ftp-fix-dir-name-func-alist is a variable defined in `ange-ftp.el'.
Its value is

((bs2000 . ange-ftp-fix-dir-name-for-bs2000) (cms . ange-ftp-fix-dir-name-for-cms) (mts . ange-ftp-fix-dir-name-for-mts) (vms . ange-ftp-fix-dir-name-for-vms))

Alist saying how to convert directory name to the host's syntax.
Association list of (TYPE . FUNC) pairs, where FUNC is a routine which can
change UNIX directory name into a directory name more suitable for a host
of type TYPE.