Minutes of the 20 February 2014 Teleconference Austin-645 Page 1 of 1 Submitted by Andrew Josey, The Open Group. 21 February 2014 Attendees: Don Cragun, IEEE PASC OR Joerg Schilling FOKUS Fraunhofer Andrew Josey, The Open Group Nick Stoughton, USENIX, ISO/IEC JTC 1/SC 22 OR Mark Ziegast, SHware Systems Geoff Clare, The Open Group Martin Rehak, Oracle, The Open Group OR David A. Wheeler, IDA Mark Brown, Canonical Eric Blake, Red Hat David Clissold, IBM Apologies Richard Hansen, BBN * General news On the issues forwarded (794/800) to the Base Working Group, Andrew reported that he has completed his action to contact individual representatives and that was progressing. He expects to have a position withn two to three weeks. On TC2 development, Andrew reported he was progressing and was on bug 106 out of 173 in his current queue. He had noted a small number of overlaps with bugs which were discussed in current business. We also agreed that we should process the latest interpretations queue. Andrew will take an action to do that. Mark Ziegast raised the issue of access to historical draft standards, and how they could be useful for members of the working group. Andrew took an action to contact his IEEE staff liaison to enquire whether they have an archive of old standards and whether those could be made available. * Outstanding actions +Bug 0000251: Forbid newline, or even bytes 1 through 31 (inclusive), in filenames OPEN http://austingroupbugs.net/view.php?id=251 Don has an action to produce a proposal. +Bug 0000561: NUL-termination of sun_path in Unix sockets OPEN http://austingroupbugs.net/view.php?id=561 Eric has an action to update the proposal. +Bug 0000573: Please add '+' to the portable filename character set OPEN http://austingroupbugs.net/view.php?id=573 Joerg has an action to prepare a proposed change. +Bug 0000592: consistent use of struct timespec OPEN http://austingroupbugs.net/view.php?id=592 Jim had provided additional information in bugnote 1627. This was discussed and Jim took an action to provide further information. +Bug 0000598: OH shading and new interfaces OPEN http://austingroupbugs.net/view.php?id=598 Eric has an action to propose a new solution with self-contained headers. +Bug 0000517: EBNF support OPEN http://austingroupbugs.net/view.php?id=517 Action on Joerg to look at this. +Bug 0000633: SIGEV_THREAD delivery renders many signal interfaces unsafe OPEN http://austingroupbugs.net/view.php?id=633 We noted that feedback has settled down on the mailing list, and will discuss next session. +Bug 0000657: Conditions under which fmemopen() write a NUL to the buffer are insufficiently specified OPEN http://austingroupbugs.net/view.php?id=657 Eric has an action to propose wording to clarify the behavior for fmemopen(), and also to contact the glibc developers to get their feedback. +Bug 0000658: Undefined/unspecified behavior clauses in description of open have race conditions OPEN http://austingroupbugs.net/view.php?id=658 It was noted that there is some overlap with changes in TC1. Eric took an action to update the proposal to resolve the overlaps appropriately. +Bug 0000615: pthread_setcancelstate should be async-signal-safe OPEN http://austingroupbugs.net/view.php?id=615 We now have reports on AIX and Apple. Jim to report back on whether pthread_cancelstate() is async-signal-safe on Solaris. Andrew to ask HP whether pthread_cancelstate() is async-signal-safe on HP-UX. +Bug 622 left open pending resolution of 615. http://austingroupbugs.net/view.php?id=622 +Bug 0000672: Necessary step(s) to synchronize filename operations on disk OPEN http://austingroupbugs.net/view.php?id=672 Geoff has a new proposed resolution in note 1618. Decided to solicit input from FS developers. Eric to go to Linux, David to AIX and Jim to Solaris. Jim has completed his action (see bugnote 1691). Andrew should chase HP and Apple for input. +Bug 0000663: Specification of str[n]casecmp is ambiguous reopened http://austingroupbugs.net/view.php?id=663 Action on David to follow up with the IBM developers about the EBCDIC collation sequence. Bug 696 either NAME_MAX shouldn't be optional, or readdir_r() needs clarification http://www.austingroupbugs.net/view.php?id=696 Don has an action to propose a resolution. Bug 0000721: Internal storage vs static storage OPEN http://austingroupbugs.net/view.php?id=721 This item is still open. Bug 0000375: Extend test/[...] conditionals: ==, <, >, -nt, -ot, -ef OPEN http://austingroupbugs.net/view.php?id=375 This is still left open due to discussions pending on the reflector. Bug 0000789: Add set -o pipefail OPEN http://austingroupbugs.net/view.php?id=789 Bug 0000794: Add a function series for formatted error messages OPEN http://austingroupbugs.net/view.php?id=794 Martin has completed his action to forward to The Open Group Base Working group to see if they would be willing to sponsor this proposal for new interfaces. Bug #0000800: Add support for the recursive printf() format %r OPEN http://austingroupbugs.net/view.php?id=800 Joerg has an action to write a new proposal. Martin has also forwarded this to The Open Group Base Working group for their consideration. * Current Business We picked up looking at an issue of duplication found when developing the TC2 draft changes. An overlapping changed had been found in bug 578 and 643 on line 73482 of the 2008 edition. Change Number: XCU/TC2/D1/nn [578] On Page: 2326 Line: 73482 Section: 2.10.2 In section 2.10.2 Shell Grammar Rules, change from: Assignment to the NAME shall occur as specified in Section 2.9.1. to: Assignment to the name before the '=' in the ASSIGNMENT_WORD shall occur as specified in Section 2.9.1 Rationale: Change Number: XCU/TC2/D1/nn [643] On Page: 2326 Line: 73482 Section: 2.10.2 In section 2.10.2 Shell Grammar Rules, change from: Assignment to the NAME shall occur ... to: Assignment to the name within a returned ASSIGNMENT_WORD token shall occur ... Rationale: We agreed to go with the change in 643 . Geoff updated bug 578. Bug #801 Clarify requirements on M_* macros with FLT_EVAL_METHOD!=0 Accepted as Marked http://austingroupbugs.net/view.php?id=801 We continued the discussion on bug 801. This item is tagged for TC2-2008. An interpretation is required. 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: None. Notes to the Editor (not part of this interpretation): At page 289 line 9596 section change: shall be accurate within the precision of the double type to: shall be accurate to at least the precision of the double type Add a note to Application usage (p 295, line 9860): Note that if FLT_EVAL_METHOD is neither 0 nor 1, then some constants might not compare equal as expected, for example (double)M_PI == M_PI can fail. Add after line 12423 on p 368: The header may also define macros for message types using names that start with M_. Add M_ prefix reservation for in the table on page 475, shaded XSI. Bug 0000806: fnmatch behavior unclear when pattern ends in backslash Accepted as Marked http://austingroupbugs.net/view.php?id=806 An interpretation is required. This item is tagged for TC2-2008 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: Existing practice is for a pattern ending in an unescaped not to match anything, but it would be useful to allow implementations to diagnose this as user error. Notes to the Editor (not part of this interpretation): At page 881 line 29479 after: In particular, "\\" shall match a in string. Add: If pattern ends with an unescaped , fnmatch() shall return a non-zero value (indicating either no match or an error). Cross-volume change to XCU... At page 2354 line 75017 section 2.13.1 after: The escaping shall be discarded. Add: If a pattern ends with an unescaped , it is unspecified whether the pattern does not match anything or the pattern is treated as invalid. Eric took an action to submit a separate bug on the behaviour of fnmatch() with FNM_PATHNAME set and multiple consecutive slashes in the pattern. Next Steps ---------- The next call is on February 27, 2014 (a Thursday) 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#