usr.sbin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

rpcbind: Remove return statement at the end of void functions

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>

Remove $FreeBSD$: one-line .h pattern

Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/

Remove unused includes.

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Bounds check rpcbs_rmtcall(..) to ensure rtype is less than RPCBVERS_STAT

Not returning if rtype == RPCBVERS_STAT will cause us to overrun the inf array, as
it's defined to be exactly RPCBVERS_STAT elements in rpcb_prot.x:

> include/rpc/rpcb_prot.x:typedef rpcb_stat rpcb_stat_byvers[RPCBVERS_STAT];

The proposed change also matches the rest of the rtype upper bound checks in the
file, so the original change was likely a typo.

MFC after: 2 weeks
Reported by: Coverity
CID: 1007567
Reviewed by: truckman
Sponsored by: EMC / Isilon Storage Division

Replace Sun RPC license with a 3-clause BSD license, with the explicit
permission of Sun Microsystems in 2009.

Use prototype. While I'm there, add a pair of parenthesis to mark an if
statment's border.

MFC after: 1 month

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.

Don't compare a char to NULL.

Obtained from: NetBSD

WARNS=3 safety (mostly), use __unused for unused params and unsigned where
needed to avoid warnings about comparing signed and unsigned values.

This is a selection of essentially cosmetic changes:
- Use '\0' for a char instead of NULL.
- Explicitly compare against the global `nullstring' to determine if
a non-NULL uaddr is not malloc'd.
- Remove some unnecessary casting of the argument to free().
- In rpcbproc_callit_com(), move the freeing of m_uaddr to the
cleanup code at the end of the function.
- To avoid confusion and possible alignment problems, change
netbufdup() to allocate the netbuf struct and the sockaddr buffer
separately, and change netbuffree() accordingly. This makes it
produce netbufs that are consistent with all other netbufs in
rpcbind.

Bring in a hybrid of SunSoft's transport-independent RPC (TI-RPC) and
associated changes that had to happen to make this possible as well as
bugs fixed along the way.

Bring in required TLI library routines to support this.

Since we don't support TLI we've essentially copied what NetBSD
has done, adding a thin layer to emulate direct the TLI calls
into BSD socket calls.

This is mostly from Sun's tirpc release that was made in 1994,
however some fixes were backported from the 1999 release (supposedly
only made available after this porting effort was underway).

The submitter has agreed to continue on and bring us up to the
1999 release.

Several key features are introduced with this update:
Client calls are thread safe. (1999 code has server side thread
safe)
Updated, a more modern interface.

Many userland updates were done to bring the code up to par with
the recent RPC API.

There is an update to the pthreads library, a function
pthread_main_np() was added to emulate a function of Sun's threads
library.

While we're at it, bring in NetBSD's lockd, it's been far too
long of a wait.

New rpcbind(8) replaces portmap(8) (supporting communication over
an authenticated Unix-domain socket, and by default only allowing
set and unset requests over that channel). It's much more secure
than the old portmapper.

Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded
to support TI-RPC and to support IPV6.

Umount(8) is also fixed to unmount pathnames longer than 80 chars,
which are currently truncated by the Kernel statfs structure.

Submitted by: Martin Blapp <mb@imp.ch>
Manpage review: ru
Secure RPC implemented by: wpaul