Minutes of the 17th November 2016 Teleconference     Austin-792 Page 1 of 1
Submitted by Andrew Josey, The Open Group. 19th November 2016

Attendees:
    Mark Ziegast, SHware Systems
    Don Cragun, IEEE PASC OR
    Geoff Clare, The Open Group
    David Clissold, IBM (partial)
    Andrew Josey, The Open Group (partial)
    Eric Blake, Red Hat
    Joerg Schilling, FOKUS Fraunhofer
 
Apologies
    Nick Stoughton, USENIX, ISO/IEC JTC 1/SC 22 OR
    Richard Hansen, Google
    Martin Rehak, Oracle, The Open Group OR

* General news

None.

* Outstanding actions

( Please note that this section has been flushed to shorten the minutes -
to locate the previous set of outstanding actions, look to the minutes
from 28 Jan 2016)

Bug 0000249: Add standard support for $'...' in shell   Reopened
http://austingroupbugs.net/bug_view_page.php?bug_id=249
We will return to bug 249 on a future call.

Bug 0000953: Alias expansion is under-specified   Was Accepted as Marked
http://austingroupbugs.net/view.php?id=953
Richard has an action to propose new wording to discuss in a future telecon.

* Current Business

Bug 1016: race condition with set -C Accepted as Marked
http://austingroupbugs.net/view.php?id=1016

An interpretation is required
This item is tagged for Issue 8

Interpretation response:
The standard states the requirements for redirection with '>' when
set -C is in effect, and conforming implementations must conform
to this. However, concerns have been raised about this which are
being referred to the sponsor.

Rationale:
Historical shells just called stat() to check if a regular file
existed and then called creat(). The operation thus involved a race
condition which meant that it could not be used for reliable creation
of lock files or unique (often temporary) files. Modern shell
implementations are instead using open() with the O_CREAT and O_EXCL
flags set as one step in a multi-step process, although this makes
their behavior differ from the behavior required by the standard
in certain respects.

Notes to the Editor (not part of this interpretation):
Make the changes in Note: 0003485, choosing between option 1 and
option 2 during work on the Issue 8 drafts.

Bug 0001022: error indicator for encoding errors in fgetwc(3)  OPEN
http://austingroupbugs.net/view.php?id=1022

Action: request Nick to raise with the C committee


Bug 1023: Behaviour of ls -R without -a under presence of directories beginning with a dot         Accepted as Marked
http://austingroupbugs.net/view.php?id=1023


An interpretation is required. 
This item is tagged for Issue 8

Interpretation response:
The standard does not speak to this issue, and as such no conformance
distinction can be made between alternative implementations based
on this.  This is being referred to the sponsor.

Rationale:
It seems that all implementations of ls, but one, have excluded
hidden directories when using ls -R without -A and without -a. The
standard developers believe that this is the correct or intended
behavior. However, the standard did not clearly specify this behavior.

Notes to the Editor (not part of this interpretation):
Change:
    Recursively list subdirectories encountered.
to:
    Recursively list subdirectories encountered. Subdirectories
    with filenames beginning with a <period> ('.') shall be recursively
    listed if and only if the subdirectory name was included in the
    filenames listed for the containing directory.


Bug 1024: chmod() should be allowed to ignore S_ISVTX  OPEN
http://austingroupbugs.net/view.php?id=1024 

We started on this item and will continue next time.


Next Steps
----------
The next call is on December 1st, 2016 (a Thursday)

There will be no call on November 24th.

Calls are anchored on US time. (8am Pacific) 

This call will be for the regular 90 minutes.

http://austingroupbugs.net

An IRC channel will be available for the meeting
irc://irc.freenode.net/austingroupbugs

An etherpad is usually up for the meeting, with a URL using the date format as below:

http://posix@posix.rhansen.org:9001/p/201x-mm-dd
password=2115756#