Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

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

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

Check the return error of set[e][ug]id. While this can never fail in the
current version of FreeBSD, this isn't guarenteed by the API.
Custom security modules, or future implementations of the setuid and
setgid may fail.

Submitted by: Erik Cederstrand
Approved by: cperciva
MFC after: 3 days

Add missing static keywords for global variables to tools in sbin/.

These tools declare global variables without using the static keyword,
even though their use is limited to a single C-file, or without placing
an extern declaration of them in the proper header file.

Remove dead variable assignments

Found by: clang static analyzer
Verified by: md5(1)

Make CCD be able to read and write Linux software raids.

Supported for raid-0 with <n> disks, raid-1 with 2 disks.

Manpages have examples, warnings etc.

Test scripts on
http://www.cons.org/cracauer/ccdconfig-linux/
Reviewed by: alfred

Garbage collect useless variables.

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

Make this WARNS=6 clean by renaming the variable 'err' to 'error'
in order not to shadow err(3).

Tested by: make universe

Be consistent about module names.

GEOMification of CCD.

You need your kernel and ccdconfig(8) to be in sync, particularly if your
source tree is on a ccd device.

Further devilification of CCD:

Change the list interface to simplify things.
Remove old list ioctls which bogusly exported the softc to userland.
Move the softc and associated structures from the public header to
the source file.

Use GEOM OAM api to retrive list of configured ccd devices.

Link against libgeom.

Use __FBSDID() to quiet GCC 3.3 warnings.

Don't pick the name out of the devstat member of the ccd softc, it will
disappear soon. Exporting the softc in the first place is a mistake.

Fix two errorchecks to check for negative error returns.

Find places to store the previously implicityly passed unit number in
the three configuration ioctls which need a unit number.

Add a "ccd.ctl" device for config operations.

Implement ioctls on ccd.ctl which rely on the explicityly passed
unit numbers.

Update ccdconfig to use the new ccd.ctl interface.

Add code to the kernel to detect old ccdconfig binaries, and whine
about it.

Add code to ccdconfig to detect old kernels, and whine about it.

These two compatibility measures will be retained only for a limited
period since they are in the way of GEOM'ification of ccd.

Fix various details so we get to WARNS=3.
Center operation on unit number rather than path name.

Remove CCDF_SWAP and CCDF_PARITY. They have never been implemented.

o __P removal.
o Use ANSI function definitions.
o main(int, char *[])

Removed -M and -N from getopt(3) call as well.

Duh! forgot this bit of the NCCD patch.

Submitted by: sobomax
Reviewed by: phk

SECURITY: Drop `setgid kmem' bit as early as possible.

Add `_PATH_DEVZERO'.
Use _PATH_* where where possible.

Fix world-breakage: warnx("..') --> warnx("...")

Submitted by: Alain Thivillon <Alain.Thivillon@hsc.fr>,
Udo Erdelhoff <ue@nathan.ruhr.de>
Approved by: green

Don't call warnx() without a format string (localized error messages
could conceivably cause a crash).

Obtained from: OpenBSD

Removal of sys/device.h

- Move intrhook stuff into kernel.h
- Remove all occurrences of #device <device.h>
- Add kernel.h were necessary (nowhere)
- delete device.h

This file contained the structures for cfdata (old style config) and is no
longer used. It was included by most drivers.

It confuses the remote debugger as the definition of 'struct device' in
device.h is found before the one in bus_private.h.

Silence -Wall

Reviewed by: dillon

$Id$ -> $FreeBSD$

(1) Include linker.h because we use kldload()
(2) Clear up an ambigious, nested if/else
(3) Cast a ccio_size to a long and use the correct format identifier.

Reviewed by: green

don't use <sys/disk.h>

kldload("ccd") if the ccd module isn't present.

Update system to new device statistics code.

Submitted by: "Kenneth D. Merry" <ken@plutotech.com>
mike@smith.net.au (Mike Smith)

Correct use of .Nm, use .Bl/.El in FILES section. Add rcsid. Remove unused
#includes and make it a little more -Wall-friendly.

Properly drop group privs to open file names specified by the user.
Submitted by: Niall Smart rotel@indigo.ie
Obtained from: OpenBSD (rev 1.7 and 1.8)

Remove __progname. Cosmetic in usage string.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Add mirror and parity flags to list of symbolic names.

Added $Id$.

Make it work for FreeBSD-2.1.

This commit was generated by cvs2svn to compensate for changes in r13044,
which included commits to RCS files with non-trunk default branches.

ccdcontrol from NetBSD-1.1. Note it was called "ccdconfig" originally.