- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

Fix warning from valgrind when a failed entry is tested.

PR: kern/173008
Submitted by: Zhihao Yuan <lichray@gmail.com>
Reviewed by: gabor
Approved by: cperciva (implicit)
MFC after: 1 week

libc: Use O_CLOEXEC for various internal file descriptors.

This fixes a race condition where another thread may fork() before CLOEXEC
is set, unintentionally passing the descriptor to the child process.

This commit only adds O_CLOEXEC flags to open() or openat() calls where no
fcntl(fd, F_SETFD, FD_CLOEXEC) follows. The separate fcntl() call still
leaves a race window so it should be fixed later.

- More style(9) fixups

Approved by: delphij (mentor)

- Deal with some special cases [1]
- style(9) nits

Pointed out by: jilles [1]
Approved by: delphij (mentor)

- Fix some style(9) bugs

Pointed out by: bde

- style(9)

Approved by: delphij

Cache failing and opened catalogs in catopen() and related functions.
Continuous catopen() calls cause 4 failig stat(2) each, which means a lot
of overhead. It is also a good idea to keep the opened catalogs in the memory
to speed up further catopen() calls to the same catalog since these catalogs
are not big at all. In this case, we count references and only free() the
allocated space when the reference count reaches 0. The reads and writes to
the cache are syncronized with an rwlock when these functions are called from
a threaded program.

Requested by: kib
Approved by: delphij

Bring in NetBSD's improvements and cleanups to NLS subsystem, making
it type and endian clean and removing of stdio dependency from NLS
functions (catalog files now are processed via mmap())

Also following changes were done (against NetBSD version):

. If mmap() failed, set errno to EINVAL and do not try to munmap() file

Obtained from: NetBSD

Cleanup prototypes and remove dead code

MFC After: 3 days

Remove incomplete support for running FreeBSD userland on old NetBSD kernels
lacking the issetugid() and utrace() syscalls.

Back out the `hiding' of strlcpy and strlcat. Several people
vocally objected to this safety belt.

`Hide' strlcpy and strlcat (using the namespace.h / __weak_reference
technique) so that we don't wind up calling into an application's
version if the application defines them.

Inspired by: qpopper's interfering and buggy version of strlcpy

Do not include <sys/syslimits.h> directly; it is not intended for general
consumption.

Now, malloc is fixed, remove ENOMEM hardcode

Set errno to ENOMEM for strdup too (due to malloc errno bug)

Always set errno to ENOMEM after malloc failed (as workaround).
Our malloc sometimes forget to set errno, f.e. for size overflow case.

Close descriptor, if error happens in loadCat()

Try harder to check lang as path component (".", "..", / inside).
Try harder to not overwrite failure errno.
style(9) whitespace reformatting for code readability.

Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.

Removed duplicate VCS ID tags, as per style(9).

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

Fix typo

PR: misc/21596
Submitted by: TOGAWA Satoshi <toga@puyo.org>

Prevent buffer overflow if NLSPATH is too long

Fully implement NLSPATH processing as described in SUSv2

Oops! don't set errno to ENOMEM explicitly if malloc() failed.

Found by: ache

Finaly cleanup libc/nls code:

* rewrite catopen() to remove duplicate code chunks and optimize
* if empty string is passed to catopen() as name argument then
catopen() will set errno to ENOENT (File not found), not EINVAL
* move search code to LOOKUP() macro to shrink amount of duplicated code
* move common resource freeing actions to __nls_free_resources() function
* exclude from build code related to MCLoadAll defintion since it is not
using at all
* style(9) related whitespace changes

Reviewed by: ache

Rewrite using stdio. It cause program speedup since eliminates lots of small
read() syscalls. It not cause static binary size increasing because stdio
already picked via setlocale() called from catopen()

Treat empty lang as "C" lang too

Set rcsid to correct value
Resort #include files
Remove SYSV compatibility chunks

Remove unused indirect references to cat* functions.

Fix memory leak introduced by kris in rev 1.22

setlocale may return NULL, handle this case too by resetting to "C"

Move protection code down to handle NL_CAT_LOCALE case too.

Protect from badly formed LANG variable

catgets: detect if fd becomes invalid after exec and return default response

cosmetique, use NULL for pointers comparison

Prevent internal buffer overflow due to expansion of $LANG and/or name
argument in catopen().

Reviewed by: chris, -audit

Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),
just use _foo() <-- foo(). In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcoming libpthread), this
is adequate. In the case of libc_r, we still need three names, which are
now _thread_sys_foo() <-- _foo() <-- foo().

Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(),
nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo().

Remove all internal libc usage of: creat(), pause(), sleep(), system(),
tcdrain(), wait(), and waitpid().

Make thread cancellation fully POSIX-compliant.

Suggested by: deischen

Add three-tier symbol naming in support of POSIX thread cancellation
points. For library functions, the pattern is __sleep() <--
_libc_sleep() <-- sleep(). The arrows represent weak aliases. For
system calls, the pattern is _read() <-- _libc_read() <-- read().

$Id$ -> $FreeBSD$

Provide meaningful errno value on error return

Return -1 for invalid descriptor in catclose

If passed catgets descriptor is NULL or -1, return default string immediately

Force loadType to 0

Implement NL_CAT_LOCALE
Manpages cleanup

Prototypes/typedefs cleanup
Fix error return codes

Add #ifndef __NETBSD_SYSCALLS around calls to issetugid() which
do not exist in NetBSD 1.3.

Plug even more failure memory leaks

Cleanup
Plug failure memory leaks
Use issetugid now
PR: 3492

Restricting $LANG was a really bad idea

Pointed out by: Everybody but Jordan.

Don't honor LANG or NLSPATH if we're setuid/setgid.

Fixes PR 2582

Submitted by: Julian Assange

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.

General -Wall warning cleanup, part I.
Submitted-By: Kent Vander Velden <graphix@iastate.edu>

and so on...

Add /usr/local/share/nls to default search path

Remove trailing whitespace.

Add the nls code for XPG3-style message catalogs to libc.
Obtained from: NetBSD