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Pull up following revision(s) (requested by dholland in ticket #1507):

	bin/test/test.c: revision 1.45

PR 56983 Izumi Tsutsui: fix confusing message in test(1) with -DSMALL

PR 56983 Izumi Tsutsui: fix confusing message in test(1) with -DSMALL

s/existance/existence/ in comment.

Ooops, restore accidently removed files from merge mishap

Sync with HEAD

Sync with HEAD

Ssync with HEAD

Allow SMALL (and TINY) builds of test (for SMALL/TINY builds of sh)
which support only the defined modes of operation of test, to allow
the version of sh on small install media be kept as small as possible.

PR standards/34646

Make test(1) always use the POSIX "number of args" evaluation rules
when they apply.

Only fall back to the old expression evaluation when there are more
than 4 args, or when the args given cannot work as a test expression
using the POSIX rules.  That is when the result is unspecified.

Also fix old bug where a string of whitespace is considered to be a
valid number (at least one digit is needed amongst it somewhere...)

XXX pullup -8

Drop main() prototype.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

resync from head

test(1): Compare timestamp in nsec scale in -nt/-ot.

sync with head

Add __printflike attribution to use vprintf and friends with an argument
as format string.

Use __dead

Merge in changes between wrstuden-revivesa-base-2 and
wrstuden-revivesa-base-3.

bin/39446: Aleksey Cheusov: always produce errors on empty numbers.

Sync w/ -current. 34 merge conflicts to follow.

make getn return long long to support large numbers on all archs.

sync with head

PR/38755: murray armfield: /bin posix programs missing setprogname and/or
setlocale

sync with HEAD

convert __attribute__s to applicable cdefs.h macros

PR/36534: Greg A. Woods: test(1) doesn't do -r and -w quite right
Use stat(2) instead of access(2) per POSIX.

Make sure we don't run over the end of the argument array while scanning
for input. This can happen if we have a unary not without an argument. When
we scan for the argument, we are already at the NULL element of the argument
array. Then when we scan ahead for a -a or -o, we end up testing the next
element after the NULL.

PR/36092: B K: algorithmic inefficiency in bin/test/test.c:t_lex
test(1) scans for "operators" linearly in an array using strcmp() to
find a match. Since the list of "operators" is fixed, split them
into one and two character ones, and ones that start with a `-' and
ones they don't. This way we can optimize the compare function to
just check for one or two characters. Sort and use bsearch(3). We
could have used a single sorted array and bsearch(3), to save some
complexity, but I decided to be a bit fancier.

Revert previous (==) - not worth the trouble.

Allow '==' as synonym to '=', just like our ksh and bash do.
This also affects the sh(1) builtin test command.

don't call get/set progname when we are a shell built-in.

use getprogname() instead of argv[0], because some programs that execv, pass
the full path in argv[0] instead of just the basename. In reality, those
programs should be fixed (hello gdb for example).

KNF, use NULL instead of (type *)0.

__STDC__ is always defined on NetBSD.

Some KNF fixes by Petri Koistinen and me.

ANSIfy and slight KNF. Mostly #13594 by Petri Koistinen.

Pull up revision 1.22 (requested by he):
  Enable test as a shell builtin.  Fixes PR#9847.

Pull up revision 1.21 (requested by he):
  Fix operator precedence consistency.  Fixes PR#7015.

- Enable test to be a shell builtin
- KNF
- Fix bug where test without arguments could access invalid memory

Operator precedence consistency; from "Andrew_L. Moore" <alm@SlewSys.Org>
in PR bin/7015.

char -> unsigned char

Be more retentive about use of NOTREACHED and noreturn.

Use S_IS*(), not S_IF*.

Fix compiler warnings.
Add WARNS=1

kill use of register

clean up Id's, and such.  reorganize man page slight to match lite's org.

from jtc: insure that 3 and 4 argument special cases work properly.

from jtc: insure that 3 and 4 argument special cases work properly.

Replaced test with simpler, more feature rich, version derived from pdksh.

Removed code that checked if arg was a unary operator when test is called
with only one argument.  It's not a syntax error --- it's a special case.

fix syntax error when only have one arg.  from Jarle Greipsland

add support for 'test -h' a la SunOS

fix from Andrew Moore <alm@netcom.com> to fix test's handling of
(non-negated) "-a" and "-o".

From alm:

Added and/or operator test to POSIX special case processing, so now:
$ test ! "abc" -o "abc"
evaluates to true.

The correct fix is probably to yank the superfluous special case code, but
I don't have time to verify the correctness of the result.

Put back RCS identifier.

test "0 " -eq 0 now evaluates to true.
It also does range checking.  These override J.T.'s patches.

Ignore leading whitespace and handle `-' and `+' for operands of integer
comparisions.

/bin/test " 5" -eq 5 now evaluates to true, rather than return an error.
/bin/test "5 a" -eq 5 still correclty returns an error.

Add RCS identifiers.

get the [ ! "" ] case right.

new 'test' from ftp.uu.net:/systems/unix/bsd-sources, got rid of GNU thing