All
Enclosed are the minutes of the Monday meeting this past week
regards
Andrew
-----------------------
Minutes of the 17th October 2022 Teleconference Austin-1263 Page 1 of 1
Submitted by Andrew Josey, The Open Group. 21st October 2022
Attendees:
Don Cragun, IEEE PASC OR
Nick Stoughton, Logitech/USENIX, ISO/IEC JTC 1/SC 22 OR
Eric Blake, Red Hat, The Open Group OR
Eric Ackermann, HPI, University of Potsdam
Mark Ziegast, SHware Systems Dev.
Geoff Clare, The Open Group
Apologies:
Andrew Josey, The Open Group
Tom Thompson, IEEE
* General news
This was a call dedicated to general bugs.
* Carried Forward
Bug 1560: clarify wording of command substitution
https://austingroupbugs.net/view.php?id=1560
Leave this and related bugs 1561 and 1564 open awaiting reviews/discussion.
Bug 1273: glob()'s GLOB_ERR/errfunc and non-directory files OPEN
https://austingroupbugs.net/view.php?id=1273
We will leave this open awaiting feedback.
Bug 768: add "fd-private" POSIX locks to spec OPEN
https://austingroupbugs.net/view.php?id=768
Linux has now had OFD locks for several years, and more code in the
wild is starting to use it - so we have existing practice (see note
2508)
https://www.gnu.org/software/libc/manual/html_mono/libc.html#Open-File-Description-Locks
Starting point of resolution at https://posix.rhansen.org/p/bug768
AI to EricB - take the GNU documentation and turn it into a desired action
Bug 739: CX requirements for strftime seem to conflict with ISO C OPEN
https://austingroupbugs.net/view.php?id=739
Nick completed his action to liaise with the C committee on this
issue. C23 is about to go to ballot, so the way to raise the issue
would be as a ballot comment. This could be done either as a UK or
US national body comment.
Andrew confirmed with the UK C Panel that we can submit comments.
Bug 728: Restrictions on signal handlers are both excessive and insufficient
OPEN
https://austingroupbugs.net/view.php?id=728
The alignment with C17 changes the requirements in this area. There
is still no allowance for accessing const objects or string literals,
so that is something we could consider adding as an extension to
C. Or we could raise the issue with the C committee if we want to
stay in sync with the C standard. Suggestion: raise it as a C23
ballot comment. Depending on the answer, we could implement what
they plan to do, or diverge (or leave things as they are).
AI Nick and Geoff: File ballot comments on C23 (through the US and/or UK
national bodies to WG14).
Bug 708: Make mblen, mbtowc, and wctomb thread-safe for alignment with C11 OPEN
https://austingroupbugs.net/view.php?id=708
This was discussed with WG14:
https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2148.htm#dr_498
DR 498 (URL above) seems to have an agreed wording change from April
2017, but it has not been applied.
Nick asked the WG14 convenor what happened to that DR.
It appears the item was discussed but in the end the C committee could
not agree an acceptable change, and no alternate proposal was available.
We will need to accept the C wording for now.
Bug 700: Clarify strtoul's behaviour on strings representing negative numbers
OPEN
https://austingroupbugs.net/view.php?id=700
AI: Nick and Geoff to work together on a C23 ballot comment (against N3047
7.24.1.7 para 5).
Bug 689: Possibly unintended allowance for stdio deadlock OPEN
https://austingroupbugs.net/view.php?id=689
Change needs to be coordinated with C23.
AI: Nick and Geoff to work together on a C23 ballot comment (against N3047
7.23.3 para 3).
Bug 618: require isatty and friends to set errno on failure OPEN
https://austingroupbugs.net/view.php?id=618
Action item to EricB: email to various lists to collect results for
sample program (see bug 503 comment 1005 for starting point) for
current errno behavior on various OS
Bug 375: Extend test/[...] conditionals: ==, <, >, -nt, -ot, -ef OPEN
https://austingroupbugs.net/view.php?id=375
This bug was reviewed, and the following added as note.
Given the difficulties identified with the matching operations
performed by == and =~ in [[ ... ]] there would seem to be two
options for progressing this bug:
1. Keep [[ ... ]] but without =~ and with == "neutered" such that
it can only be used portably for fixed-string comparisons.
2. Omit [[ ... ]] altogether but perhaps add -nt, -ot, and -ef to
test/[ instead.
We would welcome feedback on whether option 1 is an acceptable
compromise or is too limiting. We need to resolve this bug by no
later than 2022-11-13 if it is to make it into draft 3. After that,
only option 2 will be possible (because draft 3 will be "feature
complete").
* Current Business
Bug 267: time (keyword) Accepted as Marked
https://austingroupbugs.net/view.php?id=267
This item is tagged for TC3-2008.
An interpretation is required.
Interpretation response:
The standard is unclear on this issue, and no conformance distinction
can be made between alternative implementations based on this. This
is being referred to the sponsor.
Rationale:
It is clear that the intent is to allow the reserved word implementation
(as evidenced by use of time in pipelines being unspecified, and
explicit mention in the rationale of the time utility), but the
conditions under which the behavior is unspecified are insufficient
to allow this.
Notes to the Editor (not part of this interpretation):
Make the changes in Note: 0005990
This will be discussed at the next meeting.
Any comments on this should be submitted before October 17.
Bug 249: Add standard support for $'...' in shell OPEN
https://austingroupbugs.net/view.php?id=249
This item was continued and has its own etherpad.
See also https://posix.rhansen.org/p/bug249
Geoff took an action to copy the etherpad content to a bug note.
Bug 247: Add nullglob (null globbing) support to shell's "set" and glob()
Rejected
https://austingroupbugs.net/view.php?id=247
Various suggestions have been made in this bug, but there have been
valid objections to all of them. Therefore this bug is rejected on
the basis of no consensus.
Bug 220: FD_ISSET can use const keyword Accepted as Marked
https://austingroupbugs.net/view.php?id=220
This item is tagged for Issue 8.
Make the change in the desired action, and also the following change:
On 2018 edition page 1553 line 50827 section pselect(), change:
int FD_ISSET(int fd, fd_set *fdset);
to:
int FD_ISSET(int fd, const fd_set *fdset);
Bug 144: Standard lacks a (possibly XSI) interface to associate a session to a
TTY; tcsetsid() OPEN
https://austingroupbugs.net/view.php?id=144
We discussed bug 144 and will pick it up again after we resolve bug 249.
Next Steps
----------
The next calls are on:
Thu 2022-10-20 (general bugs) WEBEX
Mon 2022-10-24 (general bugs)
The calls are for 90 minutes
Apologies in advance:
Nick Stoughton: 2022-10-20
Eric Blake: 2022-10-27, 2022-11-03
Calls are anchored on US time. (8am Pacific)
Please check the calendar invites for dial in details.
Bugs are at:
https://austingroupbugs.net
An etherpad is usually up for the meeting, with a URL using the date format as
below:
https://posix.rhansen.org/p/20xx-mm-dd
(For write access this uses The Open Group single sign on,
for those individuals with gitlab.opengroup.org accounts.
Please contact Andrew if you need to be setup)
--------
Andrew Josey The Open Group
Austin Group Chair
Email: a.jo...@opengroup.org
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