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)

nos-tun(8): make WARNS=3 clean

The renames are in spirit of DragonflyBSD, to keep diff minimal.

PR: bin/140060
Approved by: ed (co-mentor)

Sync program's usage() with manpage's SYNOPSIS.

64 bit fixes. in_addr_t is an uint32_t, not a u_long.

Don't depend on <sys/types.h> pollution in <fcntl.h>. Sort includes.

o remove __P
o remove main prototype

from select(2):
Any of readfds, writefds, and exceptfds may be given as nil
pointers if no descriptors are of interest.

neither wfds nor efds were of interest so now they are nil.

also, do a little better then making an educated guess for nfds.

s/adress/address/

Inspired by: OpenBSD
MFC After: 1 week

Allow specification of which source address to use for encapsulation.

PR: 25847
Submitted by: Eugene Polovnikov <eugene@brain-fag.org>

Fix occurences of nos_tun to nos-tun, this improves internal
consistency as well as an usage printout.

PR: 10538
Submitted by: piazza
Nudged by: nrahlstr

$Id$ -> $FreeBSD$

Add ability to set protocol number.

PR: 10753
Submitted by: Isao SEKI <iseki@gongon.com>

Fixed printf format errors.

Do not uppercase first letter in syslog() string.

Add usage() and rcsid. Getopt() returns -1 not EOF. Remove unused #includes.
Use .An/.Aq in man page.

Program which implements "nos" alias "ka9q" alias "IP-IP" tunnels.

PR: 1154
Reviewed by: phk
Manpage by: phk
Submitted by: Nickolay N. Dudorov nnd@itfs.nsk.su