Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

MFC the xlocale implementation.

Merged revisions: 227487,227753,227807,227818,227999,228002,228875,230156,231673,232498,232601,232620,232626,232926-232927,232929,232931,232935,233173,233600,234573,234578,235239

This currently defines __NO_TLS on ARM (unlike head), because the required
support function has not been MFC'd.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

strptime(3) confused July with June with the fr_FR locale.

When parsing the month "juillet" (abbr "jul"), %B recognized it as
"juin" (abbr "jui") because the full name of the month names is
checked at the same time as the abbrevation.

The new behaviour checks the full names first before checking the
abbrevation names.

PR: kern/141939
Submitted by: Denis Chatelain <denis@tikuts.com>
MFC after: 1 week

Use (unsigned char) cast for ctype macro

Implement %z for strptime.

PR: kern/63064
Submitted by: Stefan `Sec` Zehl <sec 42 org> (with some small changes)
MFC after: 1 month

Detect range errors when using the %s specifier. Previously, LONG_MAX
was rejected as a range error, while any values less than LONG_MIN
were silently substituted with LONG_MIN. Furthermore, on some
platforms `time_t' has less range than `long' (e.g. alpha), which may
give incorrect results when parsing some strings.

Backout my changes in rev. 1.32 and 1.33. There is some code that depends
on the previous behaviour. This also brings strptime(3) behaviour back in line
with the other BSDs.

Approved by: markm (mentor)

Zero out the struct tm supplied by the caller. Otherwise,
strange things might happen when garbage values in the struct
get passed in to localtime_r() and family.

Noticed by: marcus
Approved by: markm (mentor)(implicit)

Fill in the rest of the fields in the resulting struct tm
from strptime(3). Previously, they would get filled only
for the %s specifier and as a side effect of using the
the %Z specifier with a GMT time zone.

PR: misc/48993
Approved by: markm (mentor)
Silence on: -standards

Ditch a static global and the mutex that protected it. Achieve the
desired strptime(3) reentrancy by adding an extra argument to _strptime()
instead.

Approved by: markm (mentor)
MFC: 4 weeks

Eliminate 61 warnings emitted at WARNS=2 (leaving 53 to go).
Only warnings that could be fixed without changing the generated object
code and without restructuring the source code have been handled.

Reviewed by: /sbin/md5

Style: One space between "restrict" qualifier and "*".

- Add the C99 'restrict' qualifier using the '__restrict' macro to
function prototype and definition of strptime(3).
- Update the manual page.

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

Recognize the %s format.

Submitted by: Thomas Zenker <thz@lennartz-electronic.de> and
Maxim Konovalov <maxim@macomnet.ru>, respectively
Reviewed by: -audit

Get rid of non-standard %E[Ff] formats, userland apps already fixed

Relax local FreeBSD restrictions on 3 chars abbrev. name length and %c format
since they not allows POSIXly legal locale data. Currently, if relaxed form
POSIXly legal locale data will be used right now, some programs will be broken,
but it means that either locale data or programs must be fixed, not the library.

Introduce non-standard md_order (month/day order) locale field to be used later
via nl_langinfo(). Currently %EF and %Ef emulated using this field, but they
planned for remove in future in favour of nl_langinfo() test field.

Implement %F per POSIX

Make 'A' and 'a', 'B' and 'b' the same, per POSIX

Implement ampm_fmt (%r) per POSIX

Hardcode c_fmt in a different way since used in nl_langinfo now

Catch up to latest chanage in timelocal structures exporting.

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

Force "%c" to be ctime-compatible

Submitted by: ru

Null commit:

The commit message for rev 1.16 was incorrect with respect to the %e
and %l specifiers, which _can_ be fixed by correcting excessive
whitespace-gobbling.

Prevent digit-gobbling for all but %l and %e, which can't be fixed.
Discuss in the BUGS section of the manpage, problems involved with
the use of %C, %e, %l, %p, %U and %W.

PR: 13901
Reported by: scott@chronis.pobox.com

Accept 12 for %l, because it's logical to expect "%l:%M" to work for
"12:00" and because strftime(3) does the same.

%Ex -> %Ef to not conflict with POSIX
Add %EF (long months name / day order)
Check that O and E not intermixed
Add missing POSIX extension to example

Stricter checking %A vs %a

Fix %C handling
Use locale for %c
Add %+
Add %Ex and %OB

Decremement by 1 the value taken for %j before assigning it to tm_yday,
which is zero-based.

Correct the range checking for the value taken for %S.

Add %w for the day of the week (0-6).

Accept (but do nothing with) %U and %W. The comment for this change was
taken from NetBSD.

These changes were made after several failed attempts to contact the
author of our strptime.c .

PR: 10131
Submitted by: tadf@kt.rim.or.jp (Tadayoshi Funaba)

Add unsigned char cast to isupper

$Id$ -> $FreeBSD$

Make the new %Z addition thread-safe.

Actually impliment the documented %Z specifier.

Re-fixed to start at 1969 per the actual Posix requirement. Also
fixed a typo on the man page.

Bring two-digit years up-to-date with POSIX requirements.
70-00 are intepreted in the 20th century; 01-69 in the
21st century. (Yes, 2000 is the last year of the 20th
century, not the first year of the 21st.)

Submitted by: Sergey Babkin <babkin@bellatlantic.net>

Change return type of strptime from const char* to char*.
const char* was wrong and nonstandard.

Add unsigned char cast to all ctype calls

Import strptime(3) into libc. We've got permission by Kevin Ruddy to
modify the original `no modifications' copyright message, and i've
included his mail into the source file.

The common localization functions between strptime(3) and strftime(3)
have been broken out into timelocal.[ch].

This commit was generated by cvs2svn to compensate for changes in r28019,
which included commits to RCS files with non-trunk default branches.

Clean import of strptime(3) onto a vendor branch.

Submitted by: Powerdog Industries <kevin.ruddy@powerdog.com>