Check if rpcbind is already running and print a warning.
Fixes segfault if rpcbind is started up a second time.

Solution has been taken from mountd(8).

Reviewed by: phk
Approved by: re (rwatson)

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

fix line wrap.

Don't pass a NULL pointer to syslog(3).

Submitted by: kris

use IPV6_V6ONLY instead of non standard IPV6_BINDV6ONLY.

MFC after: 1 week

Add -h option to rpcbind, used to specify what address to bind to for
UDP requests.

Submitted by: mbr

Stop this program's abuse of malloc(3). Its return value doesn't need these
ugly explicit casts, and its argument doesn't need explicitly cast to u_int,
especially if sizeof() is being used.

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

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

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