mirror of https://github.com/mkerrisk/man-pages
638 lines
20 KiB
Plaintext
638 lines
20 KiB
Plaintext
==================== Changes in man-pages-3.52 ====================
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Released: 2013-07-04, Munich
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Contributors
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------------
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The following people contributed patches/fixes or (noted in brackets
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in the changelog below) reports, notes, and ideas that have been
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incorporated in changes in this release:
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Adrian Bunk <bunk@kernel.org>
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Andrea Remondini <andrea@undeadlinks.com>
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Anthony Foiani <anthony.foiani@gmail.com>
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Brian Norris <computersforpeace@gmail.com>
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Cyril Hrubis <chrubis@suse.cz>
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Dan Jacobson <jidanni@jidanni.org>
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David Prévot <taffit@debian.org>
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Eric S. Raymond <esr@thyrsus.com>
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Georg Sauthoff <mail@georg.so>
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Jeff Moyer <jmoyer@redhat.com>
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Jérémie Galarneau <jeremie.galarneau@efficios.com>
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Jon Grant <jg@jguk.org>
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Manuel Traut <manut@linutronix.de>
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Марк Коренберг <socketpair@gmail.com>
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Michael Kerrisk <mtk.manpages@gmail.com>
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Mike Frysinger <vapier@gentoo.org>
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Pavel Emelyanov <xemul@parallels.com>
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Peng Haitao <penght@cn.fujitsu.com>
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Peter LaDow <petela@gocougs.wsu.edu>
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Petr Gajdos <pgajdos@suse.cz>
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Regid <regid23@nt1.in>
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Siddhesh Poyarekar <siddhesh@redhat.com>
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Simone Piccardi <piccardi@truelite.it>
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Simon Paillard <spaillard@debian.org>
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Vince Weaver <vincent.weaver@maine.edu>
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Yuri Kozlov <yuray@komyakino.ru>
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Apologies if I missed anyone!
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Newly documented interfaces in existing pages
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---------------------------------------------
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perf_event_open.2
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Vince Weaver
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Add PERF_IOC_FLAG_GROUP documentation
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The perf_event_open() ENABLE/DISABLE/RESET ioctls can take an
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argument, PERF_IOC_FLAG_GROUP. This wasn't documented at all
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until about a year ago (despite the support being there from
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the beginning) so I missed this when initially writing
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the man page.
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socket.7
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Pavel Emelyanov, Michael Kerrisk
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Document SO_PEEK_OFF option
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Since Linux 3.4 there appeared an ability to specify the
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offset in bytes from which the data will be MSG_PEEK-ed.
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Describe this socket option in the socket(7) page, where
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all the other socket options are described.
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Global changes
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--------------
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Various pages
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Michael Kerrisk
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Convert inline formatting (\fX...\fP) to dot-directive formatting
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readdir.2
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asprintf.
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getline.3
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getlogin.3
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pthread_setname_np.3
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readdir.3
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strerror.3
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Michael Kerrisk [Jon Grant]
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Clarify that terminating null byte is '\0'
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Changes to individual pages
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---------------------------
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execve.2
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Peter LaDow
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Add envp to the Linux notes about NULL pointers
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During the review of static analysis results, we discovered a
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functional, but non-portable, use of execve(). For example:
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char *cmd[] = { "/path/to/some/file", NULL };
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execve(cmd[0], cmd, NULL);
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The call succeeds. Yet, the static analysis tool (rightly)
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pointed out that envp could be dereferenced. But digging into
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glibc and the kernel, it appears that like argv, envp when NULL
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is treated as if it were an empty list.
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So, to clear things up, I'm submitting this patch to update the
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man page to indicate that envp is treated like argv.
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fallocate.2
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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io_setup.2
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Cyril Hrubis [Jeff Moyer]
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Clarify the nr_events parameter
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Currently the io_setup.2 man page describes what the kernel really
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does, i.e., that the resulting context may be able to hold more
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than the 'nr_event's operations because the memory allocated in
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kernel is rounded to be multiple of page size.
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It is better not to expose this implementation detail and
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simply state that the resulting context is suitable for
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'nr_events' operations.
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perf_event_open.2
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Vince Weaver
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Clarify the perf_event_open() wakeup_events/wakeup_watermark fields
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Clarify the perf_event_open() wakeup_events/wakeup_watermark
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fields a bit, based on info from kernel commit cfeb1d90a1b1.
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Vince Weaver
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Update to match the Linux 3.10 release
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This patch updates the perf_event_open() documentation to include
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new interfaces added in the 3.10 kernel.
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It also documents a few [To be documented] instances left over
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from the 3.7 kernel.
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Vince Weaver
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Small correction to description of 'flags' argument
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prctl.2
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Michael Kerrisk
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Note equivalents of PR_SET_NAME
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pthread_setname_np() and pthread_getname_np() and
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/proc/self/task/TID/comm provide access to the same
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attribute.
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pread.2
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Michael Kerrisk [Марк Коренберг]
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pread() and pwrite() are especially useful in multithreaded applications
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recv.2
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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semctl.2
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Michael Kerrisk [Simone Piccardi]
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'sem_nsems' is 'unsigned long' since Linux 2.4
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shmget.2
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Michael Kerrisk
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Rewrite RETURN VALUE and mention that 'errno' is set on error
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sigaction.2
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Michael Kerrisk [Brian Norris]
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RETURN VALUE: mention that 'errno' is set on error
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signal.2
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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sigpending.2
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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sigprocmask.2
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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sigsuspend.2
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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syscall.2
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Mike Frysinger
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Document s390/s390x calling convention
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a64l.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function l64a() is not thread safe.
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abs.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions abs(), labs(), llabs() and imaxabs() are
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thread-safe.
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aio_error.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread-safe
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The function aio_error() is thread safe.
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aio_return.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread-safe
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The function aio_return() is thread safe.
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alloca.3
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Adrian Bunk
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Correct information on getting non-inlined version with gcc+glibc
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- remove the incorrect information that -fno-builtin would help
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- add -std=c11 to the list of strict options
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- emphasize more that both the gcc option and not including
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alloca.h are needed
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- add the #ifdef from the glibc alloca.h to make the situation
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clearer
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bindresvport.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread-safe
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Before glibc 2.17, bindresvport() is not thread-safe.
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Since glibc 2.17, it is thread-safe, the patch can refer to URL:
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http://sourceware.org/git/?p=glibc.git;a=commit;h=f6da27e53695ad1cc0e2a9490358decbbfdff5e5
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canonicalize_file_name.3
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Michael Kerrisk
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Put CONFORMING TO section in right location
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catgets.3
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Michael Kerrisk [Jon Grant]
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Clarify that null byte is '\0'
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ceil.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions ceil(), ceilf() and ceill() are thread safe.
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cimag.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions cimag(), cimagf() and cimagl() are thread safe.
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clock_getcpuclockid.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread-safe
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The function clock_getcpuclockid() is thread safe.
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conj.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions conj(), conjf() and conjl() are thread safe.
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crypt.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function crypt() is not thread safe.
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ctermid.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread safe with exceptions
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The function ctermid() is thread safe with exceptions.
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dirfd.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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drand48.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions drand48(), erand48(), lrand48(), nrand48(),
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mrand48(), jrand48(), srand48(), seed48() and lcong48() are
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not thread safe.
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ecvt.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions ecvt() and fcvt() return a string located in a
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static buffer which is overwritten by the next call to the
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functions, so they are not thread-safe.
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encrypt.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions encrypt() and setkey() are not thread safe.
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ether_aton.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions ether_aton() and ether_ntoa() are not thread safe.
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fcloseall.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function fcloseall() is not thread safe.
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ferror.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions ferror(), clearerr(), feof() and fileno() are
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thread safe.
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fgetgrent.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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fgetpwent.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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fgetwc.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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fmtmsg.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread-safe
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Before glibc 2.16, fmtmsg() is not thread-safe.
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Since glibc 2.16, it is thread-safe, the patch can refer to URL:
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http://sourceware.org/git/?p=glibc.git;a=commit;h=7724defcf8873116fe4efab256596861eef21a94
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fputwc.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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getdate.3
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Peng Haitao
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ATTRIBUTES: Note functions that are and aren't thread-safe
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getgrent.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function getgrent() is not thread safe.
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getgrnam.3
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Peng Haitao
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ATTRIBUTES: Note functions that are and aren't thread-safe
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getline.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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getlogin.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function getlogin() is not thread safe.
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The function cuserid() is thread-safe with exceptions.
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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getpass.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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getpwent.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function getpwent() is not thread safe.
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getpwnam.3
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Peng Haitao
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ATTRIBUTES: Note functions that are and aren't thread-safe
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getspnam.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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getttyent.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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getusershell.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions getusershell(), setusershell() and endusershell()
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are not thread safe.
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getutent.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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hsearch.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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hsearch.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions hsearch(), hcreate() and hdestroy() are not
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thread-safe.
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localeconv.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The function localeconv() returns a pointer to a structure which
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might be overwritten by subsequent calls to localeconv() or by
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calls to setlocale(), so it is not thread-safe.
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Peng Haitao
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Add RETURN VALUE section
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malloc_info.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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mblen.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function mblen() is not thread safe.
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mbrlen.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread safe with exceptions
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The function mbrlen() is thread safe with exceptions.
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mbrtowc.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread safe with exceptions
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The function mbrtowc() is thread safe with exceptions.
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mktemp.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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modf.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions modf(), modff() and modfl() are thread safe.
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popen.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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pthread_attr_setinheritsched.3
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Michael Kerrisk
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Note the scheduling attributes affected by this function
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pthread_attr_setschedparam.3
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pthread_attr_setschedpolicy.3
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pthread_attr_setscope.3
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Michael Kerrisk [Manuel Traut, Siddhesh Poyarekar]
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The inherit-scheduler attribute must be set to PTHREAD_EXPLICIT_SCHED
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In order for the attributes set by these functions to have
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an effect, the caller must use pthread_attr_setinheritsched(3)
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to set the inherit-scheduler attribute of the attributes object
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to PTHREAD_EXPLICIT_SCHED.
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ptsname.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function ptsname() is not thread safe.
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putenv.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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putpwent.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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qecvt.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions qecvt() and qfcvt() are not thread-safe.
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random.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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Michael Kerrisk
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Add EINVAL error for setstate()
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Michael Kerrisk
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BUGS: inistate() does not return NULL on error
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http://sourceware.org/bugzilla/show_bug.cgi?id=15380
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random_r.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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readdir.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The data returned by readdir() may be overwritten by subsequent
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calls to readdir() for the same directory stream, so it is not
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thread-safe.
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re_comp.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions re_comp() and re_exec() are not thread safe.
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rexec.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions rexec() and rexec_af() are not thread safe.
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round.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions round(), roundf() and roundl() are thread safe.
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scalbln.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions scalbn(), scalbnf(), scalbnl(), scalbln(),
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scalblnf() and scalblnl() are thread safe.
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scandir.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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siginterrupt.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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signbit.3
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Peng Haitao
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ATTRIBUTES: Note macro that is thread-safe
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The macro signbit() is thread safe.
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sigsetops.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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stdio_ext.3
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Peng Haitao
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ATTRIBUTES: Note functions that are not thread-safe
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The functions __fbufsize(), __fpending(), __fpurge() and
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__fsetlocking() are not thread safe.
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strdup.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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strerror.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function strerror() is not thread safe.
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strftime.3
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Michael Kerrisk
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Clarify details of return value
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Michael Kerrisk
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BUGS: 'errno' is not set if the result string would exceed 'max' bytes
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strtok.3
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Peng Haitao
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ATTRIBUTES: Note function that is not thread-safe
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The function strtok() is not thread safe.
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Michael Kerrisk [Georg Sauthoff]
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Add more detail on the operation of strtok()
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Add a number of missing details on the operation of strtok()
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tempnam.3
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Michael Kerrisk
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RETURN VALUE: mention that 'errno' is set on error
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timegm.3
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Jérémie Galarneau
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copy the string returned by getenv()
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The example of a portable version of timegm() uses the string
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returned by getenv() after calling setenv() on the same
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environment variable. The tz string may be invalid as per
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getenv.3:
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"The string pointed to by the return value of getenv()
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may be statically allocated, and can be modified by a
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subsequent call to getenv(), putenv(3), setenv(3), or
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unsetenv(3)."
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tmpnam.3
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Peng Haitao
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ATTRIBUTES: Note function that is thread safe with exceptions
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The function tmpnam() is thread safe with exceptions.
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trunc.3
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Peng Haitao
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ATTRIBUTES: Note functions that are thread-safe
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The functions trunc(), truncf() and truncl() are thread safe.
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|
ttyname.3
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Michael Kerrisk
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|
ATTRIBUTES: Note functions that are and aren't thread-safe
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|
ttyslot.3
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|
Michael Kerrisk
|
|
ATTRIBUTES: Note functions that are not thread-safe
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usleep.3
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|
Michael Kerrisk
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|
RETURN VALUE: mention that 'errno' is set on error
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wcsdup.3
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|
Michael Kerrisk
|
|
RETURN VALUE: mention that 'errno' is set on error
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core.5
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|
Michael Kerrisk
|
|
Implicitly adding the PID to a core filename was dropped in 2.6.27
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|
|
proc.5
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|
Michael Kerrisk
|
|
Document /proc/[pid]/fd/ anon_inode symlinks
|
|
Mike Frysinger
|
|
Document /proc/[pid]/fd/ symlinks a bit more
|
|
Describe the type:[inode] syntax used in this dir
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bootparam.7
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|
Michael Kerrisk [Dan Jacobson]
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|
Remove outdated text on LILO and LoadLin
|
|
Strike the discussion of LILO and LoadLin, which
|
|
are long obsolete, and make a brief mention of GRUB.
|
|
See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=604019
|
|
Regid
|
|
Remove mention of the deprecated rdev(8)
|
|
The deprecated rdev(8) command was removed from util-linux in 2010.
|
|
See https://git.kernel.org/?p=utils/util-linux/util-linux.git;a=commit;h=a3e40c14651fccf18e7954f081e601389baefe3fO
|
|
Andrea Remondini
|
|
Document the 'resume' boot parameter
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|
|
|
inotify.7
|
|
Michael Kerrisk [Jon Grant]
|
|
Clarify that null byte is '\0'
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|
|
|
iso_8859-2.7
|
|
Eric S. Raymond
|
|
Remove incorrect reference to nonexistent groff glyph \[shc]
|
|
The reference incorrectly attempted to duplicate an
|
|
actual soft hyphen (hex 0xad) just before it in the file.
|
|
|
|
man-pages.7
|
|
Peng Haitao
|
|
Add description of "ATTRIBUTES"
|
|
"ATTRIBUTES" section can mention thread safety,
|
|
cancellation safety, and async-cancel-safety.
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|
|
|
socket.7
|
|
Michael Kerrisk
|
|
Note that 'optval' for socket options is an 'int' in most cases
|
|
|
|
tcp.7
|
|
Michael Kerrisk
|
|
Note that 'optval' for socket options is an 'int' in most cases
|
|
|
|
udp.7
|
|
Michael Kerrisk
|
|
Note that 'optval' for socket options is an 'int' in most cases
|