4.4BSD snapshot (revision 8.1); add 1993 to copyright

(bostic) changes for prototyping

ANSI fixes, struct direct -> struct dirent, rename glob() -> ftpglob()

new copyright notice

grab wtmp path from utmp.h

correct spelling of merchantAbility

fix user/pass to reset all on failure (*don't* leave failed anonymous
login as root!), limit login attempts, sleep after failures to slow down
guessing, correct telnet option processing, various clea

fix user/pass to reset all on failure (*don't* leave failed anonymous
login as root!), limit login attempts, sleep after failures to slow down
guessing, correct telnet option processing, various cleanups

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change to preserve wtmp file descriptor so can logout after chroot

version 5.2 of logwtmp from the library