bsd.own.mk: rename GCC_NO_* to CC_WNO_*

Rename compiler-warning-disable variables from
GCC_NO_warning
to
CC_WNO_warning
where warning is the full warning name as used by the compiler.

GCC_NO_IMPLICIT_FALLTHRU is CC_WNO_IMPLICIT_FALLTHROUGH

Using the convention CC_compilerflag, where compilerflag
is based on the full compiler flag name.

introduce some common variables for use in GCC warning disables:

GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8)
GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8)
GCC_NO_STRINGOP_OVERFLOW -Wno-stringop-overflow (GCC 8)
GCC_NO_CAST_FUNCTION_TYPE -Wno-cast-function-type (GCC 8)

use these to turn off warnings for most GCC-8 complaints. many
of these are false positives, most of the real bugs are already
commited, or are yet to come.


we plan to introduce versions of (some?) of these that use the
"-Wno-error=" form, which still displays the warnings but does
not make it an error, and all of the above will be re-considered
as either being "fix me" (warning still displayed) or "warning
is wrong."

branches: 1.25.42;
main.c uses non-literal format strings.

document non-literal strings

Add new Makefile knob, USE_FORT, which extends USE_SSP by turning on the
FORTIFY_SOURCE feature of libssp, thus checking the size of arguments to
various string and memory copy and set functions (as well as a few system
calls and other miscellany) where known at function entry. RedHat has
evidently built all "core system packages" with this option for some time.

This option should be used at the top of Makefiles (or Makefile.inc where
this is used for subdirectories) but after any setting of LIB.

This is only useful for userland code, and cannot be used in libc or in
any code which includes the libc internals, because it overrides certain
libc functions with macros. Some effort has been made to make USE_FORT=yes
work correctly for a full-system build by having the bsd.sys.mk logic
disable the feature where it should not be used (libc, libssp iteself,
the kernel) but no attempt has been made to build the entire system with
USE_FORT and doing so will doubtless expose numerous bugs and misfeatures.

Adjust the system build so that all programs and libraries that are setuid,
directly handle network data (including serial comm data), perform
authentication, or appear likely to have (or have a history of having)
data-driven bugs (e.g. file(1)) are built with USE_FORT=yes by default,
with the exception of libc, which cannot use USE_FORT and thus uses
only USE_SSP by default. Tested on i386 with no ill results; USE_FORT=no
per-directory or in a system build will disable if desired.

Use pidfile(3).

Oops remove WARNS=1

Resolve conflicts.

Avoid interraction between pppd and routed, by trying to discover new
interfaces every time there is a new route, irrespective of timeout period.

Use bsd.subdir.mk as appropriate.

- resolve conflicts.
- remove md5 stuff; it is in libc.
- define MCAST_PPP_BUG, until we fix if_ppp.c

Add a manual page link from routed(8) to rdisc(8) as suggested by
Giles Lean <giles@nemeton.com.au> on the tech-net@NetBSD.ORG mailing
list. The rationale for this is that folks may be used to rdisc(8)
or in.rdisc(8) on other systems, and may not realize that NetBSD
implements ICMP Router Discovery in the routed(8) program.

- Finished up merge.

- Add some prototypes and definitions for types as necessary,
wrapped in __NetBSD__ to maintain portability.

- Explicit size types in structures that go out the wire.

- RCS id police.

- Support rip version 2.
- Add ansi prototypes.
- Be less internet centric.
- Convert queues to use <sys/queue.h> so we don't need -lcompat

Took away use of vax inline functions. Didn't work anyway.

convert to new RCS Id conventions; reduce my headache

specify man pages the new way.

don't do query and trace

Clean up import.

don't need -lutil

Undo that last change. It was 100%, beyond a doubt, completely bogus.
afswitch and af_max were still used, but since they was declared 'common'
by virtue of their declaration in af.h, the symbols were defined at link-
time, and their contents were considered BSS -- init to zero.
Now, you and i know that jumping to zero causes a core dump...
Therefore: af.c has been resurrected, so the procedure pointers actually
point to procedures, tables.c has had it's change nuked, and af.h
has been changed so afswitch and af_max are declared as 'extern'.
It's obvious that that 'fix' wasn't even tested.

Move inet_default into tables.c, and remove all of af.c, as it is no longer
used.

remove query and trace from subdir lists; they're for debugging only.

Add RCS identifiers.

changed "Id" to "Header" for rcsids

added rcs ids to all files

branches: 1.1.1;
Initial revision