* Don't split large commands into multiple commands; just fail on them.
This prevents cross-site request forgery (CSRF)-like attacks,
when a web browser is used to access an ftp server.
* Enhance -C to support an optional @host ('-C user[@host]'):
checks whether user as connecting from host would be granted
access by ftpusers(5).
* Support IPv6 in the host directive of ftpusers(5).
* Implement -n to disable hostname lookups.
* Disable SOCKS support; I don't have the ability to test it,
and the autoconf checks were very out of date.
* Add configure --with-pam to enable PAM authentication support.
Defaults to checking for PAM.
* Add configure --with-skey to enable S/Key authentication support.
Incompatible with --with-pam, defaults to no.
* Fix pathnames in the installed manual pages to contain
the appropriate $(prefix) substitution.
* Use fcntl(3) locking instead of flock(3) or lockf(3).
* Various other portability improvements.
* Improved portability to Tru64, IRIX, and other LP64 platforms.
(Inbuilt ls works on IRIX now. Thanks to Onno van der Linden
for highlighting the underlying issue!)
* License updates on third party code.
* Update fts(3) code to include fix for possible race condition.
