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

Allow certain headers to be included more easily.

Spotted by: http://hacks.owlfolio.org/header-survey/

Remove clause 3 from Berkeley copyrights. Add a few $FreeBSD$'s.

declare struct tftphdr and embedded union as beeing packed, which is
required for arm.

Tested on: arm, i386, amd64
Approved by: re (rwatson)
MFC after: 1 week

RFC2349 (http://www.hypermail.org/rfcs/rfc2349.html) adds support
for negotiation of timeout and file size to the tftp protocol. This
is required by some firmware like EFI boot managers (at least on
HP i2000 Itanium servers) in order to boot an image using tftp. The
attached patch implements the RFC, and in doing so also implements
RFC2347; a generic tftp option extension.

PR: 30710
Submitted by: Espen Skoglund <esk@ira.uka.de>

style(9) the structure definitions.

Declare the various 2-byte values in TFTP as being `unsigned short'.
RFC 1350 isn't very explicit about this, but the use of signed
integers doesn't seem to make sense.

Should be in 2.2.5, but is probably too late to be verified completely.

PR: bin/4502
Submitted by: Dirk Nehrling <nerle@pdv.de> via Lars Koeller

Changed idempotent strings to reflect directory area.
Reviewed by:
Submitted by:

This commit was generated by cvs2svn to compensate for changes in r1539,
which included commits to RCS files with non-trunk default branches.

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