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

trailing comment after #else or #endif

make kernel includes standard

checkpoint almost working version of kernel TP0/X.25; TP4/Cons seems
to crash system still.

this changes reflect getting rid of so_tpcb.

stupid mistake concering (a & b) == 0 forgetting () needed.

new copyright; att/bsd/shared

when connecting, set refcount on isopcb to remember to clear pkcb;
get rid of tpcons_mtu; tpclnp_mtu should do the right thing.

call to tp_input lacks parameter

Checkpoint integration of tp_cons with UBC X.25; compiles only;
not tested, probably not complete.

checkpoint for ``alpha tape''; tp is still a little broken.

Checkpoint as of first successful tp connection, before posix, &
before mckusick starts incorporating gnodes

date and time created 88/12/14 15:29:55 by sklower