From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Kerrisk Subject: Re: [PATCH v2] getlogin.3: ATTRIBUTES: Note function that is not thread-safe Date: Mon, 27 May 2013 04:55:21 +0200 Message-ID: <51A2CB19.9000802@gmail.com> References: <1369357689-9069-1-git-send-email-penght@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1369357689-9069-1-git-send-email-penght-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Peng Haitao Cc: carlos-v2tUB8YBRSi3e3T8WW9gsA@public.gmane.org, aoliva-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-man@vger.kernel.org On 05/24/13 03:08, Peng Haitao wrote: > The function getlogin() is not thread safe. > The function cuserid() is thread-safe with exceptions. Thanks Peng. Applied in my local branch. Cheers, Michael > Signed-off-by: Peng Haitao > --- > man3/getlogin.3 | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/man3/getlogin.3 b/man3/getlogin.3 > index be7cc87..7050d5d 100644 > --- a/man3/getlogin.3 > +++ b/man3/getlogin.3 > @@ -135,6 +135,20 @@ password database file > \fI/var/run/utmp\fP > (traditionally \fI/etc/utmp\fP; > some libc versions used \fI/var/adm/utmp\fP) > +.SH ATTRIBUTES > +.SS Multithreading(see pthreads(7)) > +The > +.BR getlogin () > +function is not thread-safe. > +.LP > +The > +.BR getlogin_r () > +function is thread-safe. > +.LP > +The > +.BR cuserid () > +function is thread-safe with exceptions. > +It is not thread-safe if called with a NULL parameter. > .SH CONFORMING TO > .BR getlogin () > and > -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html