Minutes of the 27 February 2014 Teleconference Austin-646 Page 1 of 1 Submitted by Andrew Josey, The Open Group. 28 February 2014 Attendees: Mark Ziegast, SHware Systems Eric Blake, Red Hat Nick Stoughton, USENIX, ISO/IEC JTC 1/SC 22 OR Andrew Josey, The Open Group Joerg Schilling FOKUS Fraunhofer Don Cragun, IEEE PASC OR Geoff Clare, The Open Group Martin Rehak, Oracle, The Open Group OR Richard Hansen, BBN David Clissold, IBM (last 20 min only) Apologies: Mark Brown, Canonical * General news On the issues forwarded (794/800) to the Base Working Group, Andrew reported that he till expects to have the position in two weeks, he has received responses from some of the members and needs to chase a few of them. On TC2 development, Andrew reported he was progressing and was on bug 111 out of 173 in his current queue. Andrew reported he had not heard back yet from the IEEE staff liaison on the matter of access to historical draft standards, and will followup again with them in one weeks time. * 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 Eric reported that his action below is still open. 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. Bug 0000824: children should not inherit fcntl file locks from parent calling posix_spawn Accepted http://austingroupbugs.net/view.php?id=824 This item is tagged for TC2-2008 An interpretation is required. Interpretation response: The standard states that locks are inherited when using posix_spawn() and are not inherited when using fork()/exec(), and conforming implementations must conform to this. However, concerns have been raised about this which are being referred to the sponsor. Rationale: The behavior seen when creating a child using posix_spawn() and when using fork()/exec() should be the same. Notes to the Editor (not part of this interpretation): Make the changes suggested in the Desired Action. Action on Andrew to progress this item down the interpretations track. (Completed after meeting) Bug 0000807: Interaction between errno and signal handlers Accepted as Marked http://austingroupbugs.net/view.php?id=807 This item is tagged for TC2-2008 In Section 2.4.3 Replace Operations which obtain the value of errno and operations which assign a value to errno shall be async-signal-safe. with: Operations which obtain the value of errno and operations which assign a value to errno shall be async-signal-safe, provided that the signal-catching function saves the value of errno upon entry and restores it before it returns. Section 2.4.4: After except as noted for unsafe functions. insert this sentence: After returning from a signal-catching function, the value of errno is unspecified if the signal-catching function or any function it called assigned a value to errno and the signal-catching function did not save and restore the original value of errno. Bug 0000808: getgrgid() missing requirement not to change errno Accepted http://austingroupbugs.net/view.php?id=808 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: Application developers requiring to check for errors from these functions should set errno to zero before calling the function if they need to determine if an error occurred. Notes to the Editor (not part of this interpretation): See desired action. Action on Andrew to progress this item down the interpretations track. (Completed after meeting) Bug 0000809: Missing 'shall exit' error number Accepted http://austingroupbugs.net/view.php?id=809 This item is tagged for TC2-2008 Bug 0000810: Potential ambiguity in _CS_V[67]_ENV return value Accepted as Marked http://austingroupbugs.net/view.php?id=810 This item is tagged for TC2-2008 At page 692 line 23441 section confstr change: the string stored in buf will contain the -separated list of variable=value environment variable pairs required by the implementation to create a conforming environment, as described in the implementations’ conformance documentation. to: the string stored in buf shall contain a -separated list of the variable=value environment variable pairs an implementation requires as part of specifying a conforming environment, as described in the implementations’ conformance documentation After XBD page 16 line 493 section 2.1.1 add a small-font note: Note: If the documented method of setting up a conforming environment includes the need to set one or more environment variables, then the values of those environment variables cannot include any characters, since the confstr() function must be able to return them in a -separated list of variable=value pairs. See [xref to XSH confstr()]. Bug #811: precondition for mutex destruction unclear; example contradicts normative text OPEN http://www.austingroupbugs.net/view.php?id=811 This item was discussed, and is left open until next week Next Steps ---------- The next call is on March 6, 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#