Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

routed(8): use NULL instead of zero for pointers.

Spelling fixes for sbin/

Add some consts, remove some unused stuff and other attempts to calm
FlexeLint down.

Modernize prototypes (ie: no extern)

Make lots of stuff static.

Kick WARNS level up to 6 by fixing various trivial warnings.

Remove #ident directives, they don't exist on the vendor branch anymore.

Remove advertising clause from University of California Regent's license,
per letter dated July 22, 1999.

Approved by: core, imp

Sync HEAD sources to vendor branch import of routed v2.27 from rhyolite.com.
Update <protocols/routed.h> for the MD5 changes requested in bin/35843.
Preserve local changes.

Education by: obrien, markm, pointy-stick
PR: bin/35843 (and doubtless others)

(null commit)

Reflect that the update to routed-2.22 addresses a problem discussed
in PR bin/16941. The updated release also incorporates our local
buffer overflow fix (implemented differently) and puts us in a
position where we are completely synchronized with the master
distribution, apart from the stupid spammage of the #ident
definitions, which are supposed to indicate the release version,
not individual source file revisions.

This distribution was not moved into contrib because of objections
from wollman. He feels that the software is original Berkeley
code that shouldn't be imported into contrib just because it
has an external maintainer.

$Revision$ -> $FreeBSD$ (more cleanup needed here)

$Id$ -> $FreeBSD$

Merge-o-matic and add a bunch of $Id's

Spelling, add rcsid, remove unused #includes.
Convert 1000000 usec to 1 sec 0 usec.
Use provided safe malloc (rtmalloc()) instead of malloc(): exit on allocation
failure.
Correct use of .Nm
Add usage() and use errx().

This commit was generated by cvs2svn to compensate for changes in r18316,
which included commits to RCS files with non-trunk default branches.

Virgin import of new BSD/SGI routed. This update contains a number
of important bug fixes.

Obtained from: Vernon J. Schryver <vjs@mica.denver.sgi.com>