Authors of version 3.81

==================== Changes in man-pages-3.81 ====================

Released: 2015-03-02, Munich


Contributors
------------

The following people contributed patches/fixes or (noted in brackets
in the changelog below) reports, notes, and ideas that have been
incorporated in changes in this release:

Alexandre Oliva <aoliva@redhat.com>
Carlos O'Donell <carlos@redhat.com>
Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>
Michael Kerrisk <mtk.manpages@gmail.com>
Peng Haitao <penght@cn.fujitsu.com>

Apologies if I missed anyone!


New and rewritten pages
-----------------------

attributes.7
Alexandre Oliva, Michael Kerrisk [Carlos O'Donell]
New page describing POSIX safety concepts


Global changes
--------------

Many pages
Peng Haitao, Michael Kerrisk
Reformat existing thread-safety information to use a
tabular format, rather than plain text.


Changes to individual pages
---------------------------

mmap.2
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function mmap() and munmap() are thread safe.

a64l.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

acos.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function acos(), acosf() and acosl() are thread safe.

acosh.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function acosh(), acoshf() and acoshl() are thread safe.

addseverity.3
Ma Shimiao
ATTRIBUTES: Note function is thread-safe
The function addseverity() is thread safe.

aio_cancel.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function aio_cancel() is thread safe.

aio_fsync.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function aio_fsync() is thread safe.

aio_read.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function aio_read() is thread safe.

aio_suspend.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function aio_suspend() is thread safe.

aio_write.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function aio_write() is thread safe.

argz_add.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe

asin.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function asin(), asinf() and asinl() are thread safe.

assert.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
Its marking matches glibc marking.

assert_perror.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
Its marking matches glibc marking.

atan2.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function atan2(), atan2f() and atan2l() are thread safe.

atanh.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function atanh(), atanhf() and atanhl() are thread safe.

backtrace.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The markings match glibc markings.

btowc.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function btowc() in glibc is thread safe.
Its marking matches glibc marking.

cabs.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function cabs(), cabsf() and cabsl() are thread safe.

cacos.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function cacos(), cacosf() and cacosl() are thread safe.

cacosh.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions cacosh(), cacoshf() and cacoshl() in glibc are
thread safe. Its markings match glibc markings.

canonicalize_file_name.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The functions canonicalize_file_name() in glibc is thread safe.
Its marking matches glibc marking.

carg.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function carg(), cargf() and cargl() are thread safe.

casin.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions casin(), casinf() and casinl() are thread safe.
Their markings match glibc markings.

casinh.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions casinh(), casinhf() and casinhl() in glibc are
thread safe. Its markings match glibc markings.

catan.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions catan(), catanf() and catanl() are thread safe.
Their markings match glibc markings.

catanh.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions catanh(), catanhf() and catanhl() in glibc are
thread safe. Its markings match glibc markings.

catopen.3
Peng Haitao
ATTRIBUTES: Note functions that are thread-safe
The functions catopen() and catclose() are thread safe.

cfree.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function cfree() in glibc is thread safe.
Its marking matches glibc marking.

clog10.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions clog10(), clog10f() and clog10l() in glibc are
thread safe. Its markings match glibc markings.

clog.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function clog(), clogf() and clogl() are thread safe.

closedir.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function closedir() in glibc is thread safe.
Its marking matches glibc marking.

confstr.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function confstr() is thread safe.

cosh.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions cosh(), coshf() and coshl() in glibc are thread safe.
Its markings match glibc markings.

cpow.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions cpow(), cpowf() and cpowl() in glibc are thread safe.
Its markings match glibc markings.

crypt.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

ctermid.3
Ma Shimiao
Modify thread-safety information
According to the change of source code, ctermid's level has been
changed from MT-Unsafe to MT-Safe. After modifying, the marking
matches the glibc marking.

drand48.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

drand48_r.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

ecvt.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be same as glibc manual.

ecvt_r.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The markings match glibc markings.

encrypt.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

envz_add.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The markings match glibc markings.

exec.3
Peng Haitao
ATTRIBUTES: Note functions that are thread-safe
The functions execl(), execlp(), execle(), execv(), execvp() and
execvpe() are thread safe.

exit.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

exp10.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe

exp2.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function exp2(), exp2f() and exp2l() are thread safe.

exp.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function exp(), expf() and expl() are thread safe.

fclose.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The function fclose() is thread safe.
Its marking matches glibc marking.

fcloseall.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

fgetc.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The markings match glibc markings.

fgetwc.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The markings match glibc markings.

fgetws.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The marking matches glibc marking.

fmod.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function fmod(), fmodf() and fmodl() are thread safe.

fnmatch.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function fnmatch() is thread safe with exceptions.

fopen.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The markings match glibc markings.

fopencookie.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The marking matches glibc marking.

fread.3
Peng Haitao
ATTRIBUTES: Note functions that are thread-safe
The functions fread() and fwrite() are thread safe.

gamma.3
Peng Haitao
ATTRIBUTES: Note functions that are not thread-safe
The functions gamma(), gammaf() and gammal() are not thread safe.
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getcontext.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getcwd.3
Peng Haitao
ATTRIBUTES: Note functions that are thread-safe
The functions getcwd(), getwd() and get_current_dir_name() are
thread safe.

getdate.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getenv.3
Peng Haitao
ATTRIBUTES: Note functions that are thread-safe
The functions getenv() and secure_getenv() are thread safe.

getfsent.3
Peng Haitao
ATTRIBUTES: Note functions that are not thread-safe
The functions setfsent(), getfsent(), endfsent(), getfsspec()
and getfsfile() are not thread safe.
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getgrent.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
Its marking matches glibc marking.
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getgrnam.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getgrouplist.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function getgrouplist() is thread safe with exceptions.

getlogin.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getopt.3
Peng Haitao
ATTRIBUTES: Note functions that are not thread-safe
The functions getopt(), getopt_long() and getopt_long_only() are
not thread safe.
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getpass.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getpwent.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

getpwnam.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

gets.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
Its marking matches glibc marking.

getw.3
Peng Haitao
ATTRIBUTES: Note functions that are thread-safe
The functions getw() and putw() are thread safe.

gnu_get_libc_version.3
Peng Haitao
ATTRIBUTES: Note functions that are thread-safe
The functions gnu_get_libc_version() and gnu_get_libc_release()
are thread safe.

hsearch.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

iconv.3
Peng Haitao
Modify thread-safety information

inet.3
Peng Haitao
ATTRIBUTES: Note functions that are thread safe with exceptions
The functions inet_aton() and inet_addr() are thread safe with
exceptions.
The functions inet_network(), inet_ntoa(), inet_makeaddr(),
inet_lnaof() and inet_netof() are thread safe.
Modify thread-safety information
After researching and talking, we think inet_network() and
inet_ntoa() should be marked with locale.
After changing, the markings match glbc markings.

inet_pton.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function inet_pton() is thread safe with exceptions.

iswdigit.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function iswdigit() is thread safe with exceptions.

iswgraph.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function iswgraph() is thread safe with exceptions.

iswlower.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function iswlower() is thread safe with exceptions.

iswprint.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function iswprint() is thread safe with exceptions.

iswpunct.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function iswpunct() is thread safe with exceptions.

iswspace.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function iswspace() is thread safe with exceptions.

iswupper.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function iswupper() is thread safe with exceptions.

iswxdigit.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function iswxdigit() is thread safe with exceptions.

j0.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function j0(), j1f() jnl() and so on are thread safe.

lio_listio.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
Its marking matches glibc marking.

log10.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function log10(), log10f() and log10l() are thread safe.

log2.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function log2(), log2f() and log2l() are thread safe.

log.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function log(), logf() and logl() are thread safe.

makecontext.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

makedev.3
Peng Haitao
ATTRIBUTES: Note macros that are thread-safe
The macros makedev(), major() and minor() are thread safe.

malloc.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function malloc(), free(), calloc() and realloc() are
thread safe.

mblen.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

mbstowcs.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The marking matches glibc marking.

mbtowc.3
Peng Haitao
ATTRIBUTES: Note function that is not thread-safe
The function mbtowc() is not thread safe.
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

mktemp.3
Peng Haitao
ATTRIBUTES: Note function that is thread-safe
The function mktemp() is thread safe.

mtrace.3
Peng Haitao
ATTRIBUTES: Note functions that are not thread-safe
The functions mtrace() and muntrace() are not thread safe.

nan.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The markings match glibc markings.

nl_langinfo.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function nl_langinfo() is thread safe with exceptions.

opendir.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The markings match glibc markings.

pow10.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function pow10(), pow10f() and pow10l() are thread safe.

pow.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function pow(), powf() and powl() are thread safe.

pthread_setcancelstate.3
Michael Kerrisk
Add async-signal-safety information

ptsname.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

putenv.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-unsafe
The function putenv() is thread unsafe.

puts.3
Peng Haitao
ATTRIBUTES: Note functions that are thread-safe
The functions fputc(), fputs(), putc(), putchar() and puts() are
thread safe.

putwchar.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The marking matches glibc marking.

qecvt.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be same as glibc manual.

rand.3
Peng Haitao
ATTRIBUTES: Note macros that are thread-safe
The functions rand(), rand_r() and srand() are thread safe.

random_r.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

readdir.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be same as glibc manual.

realpath.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The marking matches glibc marking.

regex.3
Peng Haitao
ATTRIBUTES: Note functions that are thread safe with exceptions
The functions regcomp() and regexec() are thread safe with
exceptions.
The functions regerror() and regfree() are thread safe.

remainder.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The markings match glibc markings.

scalb.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function scalb(), scalbf() and scalbl() are thread safe.

setenv.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-unsafe
The function setenv() and unsetenv() are thread unsafe.

siginterrupt.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

sigset.3
Peng Haitao
ATTRIBUTES: Note macros that are thread-safe
The functions sigset(), sighold(), sigrelse() and sigignore()
are thread safe.

sinh.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function sinh(), sinhf() and sinhl() are thread safe.

sqrt.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function sqrt(), sqrtf() and sqrtl() are thread safe.

stdarg.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

stdio_ext.3
Ma Shimiao
Modify thread-safety information
Change the thread safety information to be the same as glibc.

strcasecmp.3
Peng Haitao
ATTRIBUTES: Note functions that are thread safe with exceptions
The functions strcasecmp() and strncasecmp() are thread safe
with exceptions.

strerror.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

strfmon.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
Its marking matches glibc marking.

strfry.3
Peng Haitao
ATTRIBUTES: Note function that is thread-safe
The function strfry() is thread safe.

strftime.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function strftime() is thread safe with exceptions.

strptime.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function strptime() is thread safe with exceptions.

strtok.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

strverscmp.3
Peng Haitao
ATTRIBUTES: Note function that is thread-safe
The function strverscmp() is thread safe.

strxfrm.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
The marking matches glibc marking.

syslog.3
Peng Haitao
ATTRIBUTES: Note functions that are thread safe with exceptions
The functions openlog() and closelog() are thread safe.
The functions syslog() and vsyslog() are thread safe with
exceptions.

tempnam.3
Peng Haitao
ATTRIBUTES: Note function that is thread-safe
The function tempnam() is thread safe.

termios.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.
Ma Shimiao
Modify thread-safety information
As this is man page for Linux, we don't need thread safety
information for bsd

tgamma.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions tgamma(), tgammaf() and tgammal() in glibc are
thread safe. Its markings match glibc markings.

timegm.3
Peng Haitao
ATTRIBUTES: Note functions that are thread safe with exceptions
The functions timelocal() and timegm() are thread safe with
exceptions.

tmpfile.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
Its markings match glibc markings.

tmpnam.3
Peng Haitao
Modify thread-safety information
When the argument s is NULL, tmpnam() should be MT-Unsafe.

toupper.3
Ma Shimiao
Modify thread-safety information
After researching and talking, we think toupper() and tolower()
should not be marked with locale.
After changing, the markings match glbc markings.

tsearch.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The functions' markings match glibc markings.

ttyname.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be same as glibc manual.

tzset.3
Peng Haitao
ATTRIBUTES: Note function that is thread safe with exceptions
The function tzset() is thread safe with exceptions.

wcsdup.3
Ma Shimiao
ATTRIBUTES: Note function that is thread-safe
Its marking matches glibc marking.

wctomb.3
Ma Shimiao
Modify thread-safety information
As annotation in glibc manual is more detailed, change the
thread-safety information to be the same as glibc manual.

y0.3
Ma Shimiao
ATTRIBUTES: Note functions that are thread-safe
The function y0(), y1f() ynl() and so on are thread safe.

man-pages.7
Michael Kerrisk
Refer reader to attributes(7) for details of ATTRIBUTES section
Michael Kerrisk
SEE ALSO: add attributes(7)

pthreads.7
Michael Kerrisk
SEE ALSO: add attributes(7)

standards.7
Michael Kerrisk
SEE ALSO: add attributes(7)