put in stuff to shut up gcc and reverse thread dupedkey chains for pst

this doesn't include annotation bugfixes, but documents
work sent to mitre for a tunnel driver

put in too many flags when setting netmask

compromise fixes for duped keys

This version supports both non-contiguous masks and prefix-only ones
and contains some fixes suggested by Richard Woundy as well as some of my own
for cases of super nets being added in arbitrary ord

This version supports both non-contiguous masks and prefix-only ones
and contains some fixes suggested by Richard Woundy as well as some of my own
for cases of super nets being added in arbitrary order;
This version does some optimizations when prefix-only routes are in use;
It has had limited testing in user space and shouldn't be suffering from
typographical-level errors, and has been tested against all the end-cases
that Woundy sought to fix.

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put in branch delta for normal-only routes, and mapping capabilities;
first version; probably doesn't work yet.

lint

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

prototype everything

pedantically ANSI, i.e., nothing after #else/#endif

new conventions for using routing tree

make kernel includes standard

need to include "systm.h"

changes to add routing tables via the domain switch

make rn_refines into rn_strictly_refines, so that ifa_ifwithnet()
will return the first of two equally good matches (which happens when you
have two IP address on the same subnet).

lint and formatting changes, checked in by KLS.

move logic about traversing dupkeyed entries from rtdumpentry to rn_walk

sort duped key chains

use vector instead of linked list for tree heads; walk routine
is now a method, and is included with other things that know about radix nodes.

bugfix from john@labtam.labtam.oz.au

fix "Orphaned mask" and "Can't find our annotation" bugs.

new copyright notice

changes designed so that ESIS and ARP may use routing table
instead of private cache; allow RTM_CHANGE to specify new ifp.

no longer included in route.c; needed "malloc.h" to stand on own.

various fixes concerning lost annotations; check in for ``alpha tape''