Minutes of the 30 October 2014 Teleconference Austin-681 Page 1 of 1 Submitted by Andrew Josey, The Open Group. 1st November 2014 Attendees: Mark Ziegast, SHware Systems Eric Blake, Red Hat Martin Rehak, Oracle, The Open Group OR Don Cragun, IEEE PASC OR David Clissold, IBM Mark Brown, Canonical Richard Hansen, BBN Geoff Clare, The Open Group Apologies: Nick Stoughton, USENIX, ISO/IEC JTC 1/SC 22 OR Andrew Josey, The Open Group * General news On the PASC PAR approval progress - still open. Don currently has the action to progress. * 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 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 * Current Business - Open Actions Bug #851: pthread_atfork orphans handlers in unloaded shared libraries OPEN http://www.austingroupbugs.net/view.php?id=851 Bug #854: requirement for additional built-in utilities to be searched for via $PATH was not and is not existing practice OPEN http://austingroupbugs.net/view.php?id=854 Dave Korn has responded and we need to discuss at an upcoming meeting. Bug #859: Add posix_random family of interfaces OPEN http://austingroupbugs.net/view.php?id=859 Action on The Open Group Base WG to respond whether they will sponsor. Completed On 859 Andrew has started an email ballot in the Base Working Group, which is due to close on 4 November 2014. - Bug processing Bug 0000877: tail should support the -r option Accept as Marked http://austingroupbugs.net/view.php?id=877 On page 3239 line 108600 change from: tail [-f] [-c number|-n number] [file] to: tail [-f] [-c number|-n number] [file] tail -r [-n number] [file] On page 3239 lines 108629-108632 change from: -n number This option shall be equivalent to -c number, except the starting location in the file shall be measured in lines instead of bytes. The origin for counting shall be 1; that is, -n +1 represents the first line of the file, -n -1 the last. If neither -c nor -n is specified, -n 10 shall be assumed. to: -n number If -r is not specified, this option shall be equivalent to -c number, except the starting location in the file shall be measured in lines instead of bytes. The origin for counting shall be 1; that is, -n +1 represents the first line of the file, -n -1 the last. If -r is specified, number shall specify the number of lines to read (in reverse) from the end of the input file. The application shall ensure that number does not have a sign. -r Copy the lines in reverse order (last line first). If -n is specified, that many lines of the file, starting with the last line, shall be copied. If -n is not specified, every line of the input file shall be copied. If none of the -c, -n or -r options is specified, -n 10 shall be assumed. After line 108722 (page 3242), add a new paragraph to RATIONALE: The functionality made available by tail -r has been historically provided on some systems by a separate utility (tac), although tac traditionally lacked support for -n to limit the output. While both tail -n$n | tac and tac | head -n$n can be used to output a fixed length of reversed line output, the standard developers decided that it was preferable to have a single utility tail -r -n$n for the same purpose. Furthermore, in deciding whether to standardize tac rather than tail -r, it was determined that more implementations that have achieved POSIX certification had already implemented tail -r as an extension. Bug #878: Is empty s2/sep allowed? What is the meaning of "lasts"? OPEN http://austingroupbugs.net/view.php?id=878 The rest of the call was spent discussing this item. To be continued on the next call. Next Steps ---------- The next call is on November 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#