Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Markup fixes.

Fix prototypes.

Expand *n't contractions.

Get rid of duplicates.

mdoc(7) police: "The .Fa argument.".

mdoc(7) police: "The .Fn function".

Fix documentation of clnt_control()'s CL{GET|SET}_{VERS|XID} to
reflect that they actually require a u_int32_t *, which is not
necessarily the same as an unsigned long *.

mdoc(7) police: whitespace nits.

clnt_vc_create() has const scalar arguments that wind up being modified,
fix it (make them non-const) and update the associated documentation.

Submitted by: mbr

Add functions allowing for the user to specify a timeout for rpc functions.

Update copyrights to reflect where this code was lifted from. (tirpc '99)

Submitted by: mbr

Fixed bitrot in synopsis. The TI-RPC changes gave mounds of it, mainly
inconsistently weird const poisoning in the man pages relative to the
headers.

mdoc(7) police: Use the new .In macro for #include statements.

Add a new clnt_control() request `CLSET_CONNECT' that controls
whether or not connect(2) is used for UDP client sockets. The default
is not to connect(), so existing clients will see no change in
behaviour.

The use of connect(2) for UDP clients has a number of advantages:
only replies from the intended address are received, and ICMP errors
pertaining to the connection are reported back to the application.

Fix typo: clnt_destroy() only takes one arg.

MFC after: 2 weeks

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