The source for ftptool is, as far as I'm concerned freely distributable as 
long as I recieve credit for it (my bosses agree, though Sun hasn't spoken).

Author: Mike Sullivan (Mike.Sullivan@Sun.COM)

Ported to 386 SVR4 by Jerry Whelan <guru@stasi.bradley.edu>.
Ported to Ultrix by Robert Evans <Robert.Evans@cm.cf.ac.uk>.
Ported to FreeBSD by Janusz Kokot <janek@gaja.ipan.lublin.pl>