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)

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

Fix libc build breakage by defining FSTYPENAMES before including
disklabel.h; broken originally by 1.87 of sys/disklabel.h, which
made the split between DKTYPENAMES and FSTYPENAMES.
Someone who knows disklabel.c: do we still need DKTYPENAMES to be
defined here now?

Retire the bogus uses of the disklabel field d_sbsize and begin to
initialize it to zero so we don't have to have everbody and their
aunt including FFS specific header files.

Sponsored by: DARPA & NAI Labs.

Catch up with const'ification of <sys/disklabel.h> and quelch warnings.

Initial deorbit burn for the undocumented and unused d_boot[01]
fields of struct disklabel.

Sponsored by: DARPA and NAI Labs.

Cut-n-paste in `list' mode considered harmful.

* Remove __P and convert to ANSI prototypes.
* Remove 'register'. (some functions had 7+ register functions...)
* Fix SCM ID's.

Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions. If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
__sys_foo - actual system call
_foo - weak definition to __sys_foo
foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo. In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde). All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes. <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE. We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by: -arch

Add unsigned char cast to isdigit

$Id$ -> $FreeBSD$

Don't cast int pointers to long pointers when reading labels from
/etc/disktab.

Merge from Lite2:
filesystem include updates, duplicate group suppression, cleanups,
filesystem whiteout support (unionfs), bidir popen().

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.

Updated a type to match Lite2's fixed-width type changes.

Added $Id$.

Obtained from: 4.4BSD-Lite2

Minor cleanup, mostly unused vars and missing #includes.

This commit was generated by cvs2svn to compensate for changes in r1573,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite Lib Sources