From owner-freebsd-standards@FreeBSD.ORG Mon Nov 13 11:08:40 2006
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Subject: Current problem reports assigned to you
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Current FreeBSD problem reports
Critical problems
Serious problems
S Tracker Resp. Description
--------------------------------------------------------------------------------
o bin/25542 standards /bin/sh: null char in quoted string
o kern/46239 standards posix semaphore implementation errors
o stand/54410 standards one-true-awk not POSIX compliant (no extended REs)
o stand/82654 standards C99 long double math functions are missing
o stand/94729 standards fcntl() throws undocumented ENOTTY
o stand/104422 standards TCP-MD5 key length limits
6 problems total.
Non-critical problems
S Tracker Resp. Description
--------------------------------------------------------------------------------
o bin/21519 standards sys/dir.h should be deprecated some more
o bin/24390 standards Replacing old dir-symlinks when using /bin/ln
s stand/24590 standards timezone function not compatible witn Single Unix Spec
s kern/28260 standards UIO_MAXIOV needs to be made public
s stand/36076 standards Implementation of POSIX fuser command
o stand/39256 standards snprintf/vsnprintf aren't POSIX-conformant for strings
p stand/41576 standards POSIX compliance of ln(1)
o stand/44425 standards getcwd() succeeds even if current dir has perm 000.
o stand/46119 standards Priority problems for SCHED_OTHER using pthreads
o stand/54833 standards [pcvt] more pcvt deficits
o stand/54839 standards [pcvt] pcvt deficits
p stand/55112 standards glob.h, glob_t's gl_pathc should be "size_t", not "int
o stand/56476 standards cd9660 unicode support simple hack
o stand/58676 standards grantpt(3) alters storage used by ptsname(3)
s stand/62858 standards malloc(0) not C99 compliant
s kern/64875 standards [libc] [patch] [feature request] add a system call: fd
o stand/66357 standards make POSIX conformance problem ('sh -e' & '+' command-
o stand/66531 standards _gettemp uses a far smaller set of filenames than docu
o stand/70813 standards [PATCH] ls(1) not Posix compliant
o stand/72006 standards floating point formating in non-C locales
o stand/79056 standards regex(3) regression tests
a stand/80293 standards sysconf() does not support well-defined unistd values
o stand/81287 standards [PATCH]: fingerd(8) might send a line not ending in CR
o stand/83845 standards [libm] [patch] add log2() and log2f() support for libm
o stand/85080 standards output of long double subnormals (with printf) is wron
o stand/92360 standards [headers] [patch] Missing TAB3 in kernel headers
o stand/92362 standards [headers] [patch] Missing SIGPOLL in kernel headers
o kern/93705 standards [headers] [patch] ENODATA and EGREGIOUS (for glibc com
o stand/96016 standards clock_getres et al should be in <time.h>
o stand/96236 standards [PATCH] [POSIX] sed.1 incorrectly describes a function
o stand/99517 standards Missing SIGRTMIN and SIGRTMAX signals
o stand/99960 standards [Patch] [make] Add -p flag
o stand/100017 standards [Patch] Add fuser(1) functionality to fstat(1)
o stand/104743 standards Wrong values for _POSIX_ minimal limits
o stand/104841 standards C99 long double square root.
35 problems total.
From owner-freebsd-standards@FreeBSD.ORG Mon Nov 13 17:20:56 2006
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Date: Mon, 13 Nov 2006 12:15:32 -0500
From: Craig Rodrigues <rodrigc@crodrigues.org>
To: Tom Rhodes <trhodes@freebsd.org>
Message-ID: <20061113171532.GA95344@crodrigues.org>
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Subject: Re: New Patch [was: Re: cvs rm sys/posix4 && enable sem]
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On Thu, Nov 09, 2006 at 10:04:29PM -0500, Tom Rhodes wrote:
> >
> > 1: Repocopy posix4/* files to sys/sys and sys/kern;
There is a task on the C99 and POSIX Conformance project
to do this, but no one took this task on until you did:
http://www.freebsd.org/projects/c99/
Since you've done this, you might want to update the status of
this task. The page is in CVS:
http://www.freebsd.org/cgi/cvsweb.cgi/www/en/projects/c99/
--
Craig Rodrigues
rodrigc@crodrigues.org
From owner-freebsd-standards@FreeBSD.ORG Mon Nov 13 22:49:09 2006
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Cc: trhodes@FreeBSD.org, standards@FreeBSD.org, arch@FreeBSD.org
Subject: Re: New Patch [was: Re: cvs rm sys/posix4 && enable sem]
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On Mon, 13 Nov 2006 12:15:32 -0500
Craig Rodrigues <rodrigc@crodrigues.org> wrote:
> On Thu, Nov 09, 2006 at 10:04:29PM -0500, Tom Rhodes wrote:
> > >
> > > 1: Repocopy posix4/* files to sys/sys and sys/kern;
>
> There is a task on the C99 and POSIX Conformance project
> to do this, but no one took this task on until you did:
>
> http://www.freebsd.org/projects/c99/
>
> Since you've done this, you might want to update the status of
> this task. The page is in CVS:
> http://www.freebsd.org/cgi/cvsweb.cgi/www/en/projects/c99/
Yep, done, thanks!
--
Tom Rhodes
From owner-freebsd-standards@FreeBSD.ORG Thu Nov 16 10:04:38 2006
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Cc:
Subject: sh(1) still has support for "let" keyword
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Hi,
PR: 104432 discusses the keyword let, which seems to be nothing
more than an alias for expr and works just like it. It appears
to have been around since FreeBSD 2.2. At one point, this was
documented in the manual pages, originally it was documented in
revision 1.9.2.10, RELENG_2_2. That revision was a stable branch
at the time and perhaps, when RELENG_3 was branched, the changes
were not picked up.
I was thinking of removing it, but discussions pushed me to
consider placing it under #ifndef _POSIX_SOURCE, kind of like
how ed(1) has. Questions/comments?
Thanks,
--
Tom Rhodes
From owner-freebsd-standards@FreeBSD.ORG Thu Nov 16 12:06:17 2006
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From: Oliver Fromme <olli@lurza.secnetix.de>
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Cc:
Subject: Re: sh(1) still has support for "let" keyword
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Tom Rhodes <trhodes@freebsd.org> wrote:
> PR: 104432 discusses the keyword let, which seems to be nothing
> more than an alias for expr and works just like it.
Not exactly. It supports numeric arithmetics, but not the
other features of expr(1), e.g. regular expression matching:
$ expr foo : .
1
$ let foo : .
let: arith: syntax error: "foo : ."
There are also some incompatibilities: "|" and "&" are
boolean operators in expr, but binary operators in let:
$ expr 4 \| 3
4
$ let 4 \| 3
7
Also, the "let" builtin can be used to assign the result
to a variable (it is still also printed to stdout):
$ let xyz = 6 \* 7
42
$ echo $xyz
42
On the other hand, the "let" builtin is completely redundant
because all of the above can also be done with arithmetic
expansion via $((...)), which is POSIX-compliant.
> It appears
> to have been around since FreeBSD 2.2. At one point, this was
> documented in the manual pages, originally it was documented in
> revision 1.9.2.10, RELENG_2_2. That revision was a stable branch
> at the time and perhaps, when RELENG_3 was branched, the changes
> were not picked up.
>
> I was thinking of removing it, but discussions pushed me to
> consider placing it under #ifndef _POSIX_SOURCE, kind of like
> how ed(1) has. Questions/comments?
Personally I would prefer such an #ifndef, too. There
might be a few scripts out there using "let", so it would
be a good thing not to break them. (Some authors of
scripts might have used "let" instead of expr(1) because
of efficiency reasons, since the former is built-in and
doesn't require the fork/exec overhead. It's also worth
noting that very old versions of the shell didn't support
arithmetic expansion via $((...)), so authors might have
used "let" instead.)
Another thing to note is that "let" is a builtin of most
other bourne shells (I just checked zsh, bash and pdksh),
which might be another reason to keep it in our sh, too.
However, "let" works a bit different in those three
shells: The result is _never_ echoed to stdour (only the
assignments take place), and white space between operands
and operators is not allowed:
$ zsh # bash and pdksh are exactly the same
$ let a = 3 + 4
zsh: bad math expression: operand expected at `='
$ let a=3+4
$ echo $a
7
Just my 2 cents.
Best regards
Oliver
--
Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd
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and may not necessarily reflect the opinions of secnetix in any way.
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