ntp: Vendor import of ntp-4.2.8p18

MFC: 3 days

Merge commit '1f833b3fc9968c3dd7ed79ccf0525ebf16c891ad' into main

packages: add package for NTP

Reviewed by: imp, manu
Pull Request: https://github.com/freebsd/freebsd-src/pull/1193

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

ntp: import ntp-4.2.8p16

Security: NtpBUg3767, NtpBug3808, NtpBug3807 (CVE-2023-26555)
MFC after: immediately

Use the approved syntax to build no man pages.

MFC after: 1 week
Sponsored by: DARPA, AFRL

Simplify/improve idioms in usr.sbin/ntp Makefiles

- Use SRCTOP-relative paths to other directories instead of
.CURDIR-relative ones. This simplifies pathing in make/displayed output.
- Also, use :H where possible/sensical to manipulate .CURDIR-relative
paths
- Remove superfluous bsd.own.mk .includes which are already handled via
src.opts.mk .includes

MFC after: 1 week
Sponsored by: Dell EMC Isilon

Fix overlinking again after recent ntp updates
Fix building WITHOUT_OPENSSL

MFV ntp 4.2.8p1 (r258945, r275970, r276091, r276092, r276093, r278284)

Thanks to roberto for providing pointers to wedge this into HEAD.

Approved by: roberto

Convert usr.sbin to LIBADD
Reduce overlinking

Backout 274170 it breaks for mips

sntp does not depend on libm

We install the tool, so why not the man page?

MFC after: 3 days

Update the various files to sync with vendor import of 4.2.4p5.
sntp includes a copy of libopts in itself in vendor code, rewrite the
Makefile to compile and use only one copy. It is an internal library, not
installed.

MFC after: 2 weeks

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

For variables that are only checked with defined(), don't provide
any fake value.

Add missing Makefile from previous commit.

packages: add package for NTP

Reviewed by: imp, manu
Pull Request: https://github.com/freebsd/freebsd-src/pull/1193

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

ntp: import ntp-4.2.8p16

Security: NtpBUg3767, NtpBug3808, NtpBug3807 (CVE-2023-26555)
MFC after: immediately

Use the approved syntax to build no man pages.

MFC after: 1 week
Sponsored by: DARPA, AFRL

Simplify/improve idioms in usr.sbin/ntp Makefiles

- Use SRCTOP-relative paths to other directories instead of
.CURDIR-relative ones. This simplifies pathing in make/displayed output.
- Also, use :H where possible/sensical to manipulate .CURDIR-relative
paths
- Remove superfluous bsd.own.mk .includes which are already handled via
src.opts.mk .includes

MFC after: 1 week
Sponsored by: Dell EMC Isilon

Fix overlinking again after recent ntp updates
Fix building WITHOUT_OPENSSL

MFV ntp 4.2.8p1 (r258945, r275970, r276091, r276092, r276093, r278284)

Thanks to roberto for providing pointers to wedge this into HEAD.

Approved by: roberto

Convert usr.sbin to LIBADD
Reduce overlinking

Backout 274170 it breaks for mips

sntp does not depend on libm

We install the tool, so why not the man page?

MFC after: 3 days

Update the various files to sync with vendor import of 4.2.4p5.
sntp includes a copy of libopts in itself in vendor code, rewrite the
Makefile to compile and use only one copy. It is an internal library, not
installed.

MFC after: 2 weeks

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

For variables that are only checked with defined(), don't provide
any fake value.

Add missing Makefile from previous commit.

Use the approved syntax to build no man pages.

MFC after: 1 week
Sponsored by: DARPA, AFRL

Simplify/improve idioms in usr.sbin/ntp Makefiles

- Use SRCTOP-relative paths to other directories instead of
.CURDIR-relative ones. This simplifies pathing in make/displayed output.
- Also, use :H where possible/sensical to manipulate .CURDIR-relative
paths
- Remove superfluous bsd.own.mk .includes which are already handled via
src.opts.mk .includes

MFC after: 1 week
Sponsored by: Dell EMC Isilon

Fix overlinking again after recent ntp updates
Fix building WITHOUT_OPENSSL

Convert usr.sbin to LIBADD
Reduce overlinking

Backout 274170 it breaks for mips

sntp does not depend on libm

We install the tool, so why not the man page?

MFC after: 3 days

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Update the various files to sync with vendor import of 4.2.4p5.
sntp includes a copy of libopts in itself in vendor code, rewrite the
Makefile to compile and use only one copy. It is an internal library, not
installed.

MFC after: 2 weeks

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

For variables that are only checked with defined(), don't provide
any fake value.

Add missing Makefile from previous commit.