- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

Allow nghook to execute a program with the data socket connected to
stdin and stdout instead of relaying the data. Now it is possible
to say:

nghook -e path: hook /usr/local/bin/foo arg1 arg2

and foo will have the hook to path: at file descriptors 0 and 1.

Add an option to specify control messages to be send to the node before
either executing the program or entering the data relay loop.

add FBSDID, compare getopt() against -1, use fprintf() + exit() in usage()
instead of errx() to get the message starting with "usage:".

Make this WARNS=6 clean by just constifying two local char pointers.

Implement two command line options that allow one to change the
file descriptors that are used for input and output. That allows
one, for example, to use nghook to bi-directionally pipe the
input and output into/from another non-netgraph-aware program.

Use STD{ERR,IN,OUT}_FILENO instead of their numeric values. The
definitions are more readable, and it's possible that they're
more portable to pathalogical platforms.

Submitted by: David Hill <david@phobia.ms>

Add '-n' flag: don't attempt to read any data from standard input.

Add the '-l' flag to nghook which loops the received data back.

Remove extra spaces in hex dump output.

Put include <netgraph.h> back in - problem was due to a cvsup mess on
freefall. There may also be a real problem w/ buildworld but the fix
would go somewhere else, not here.

Cleanup missing includes, stale includes, and a few printf format
inconsistancies.

Whistle's Netgraph link-layer (sometimes more) networking infrastructure.
Been in production for 3 years now. Gives Instant Frame relay to if_sr
and if_ar drivers, and PPPOE support soon. See:
ftp://ftp.whistle.com/pub/archie/netgraph/index.html
for on-line manual pages.

Reviewed by: Doug Rabson (dfr@freebsd.org)
Obtained from: Whistle CVS tree