[PATCH v2] getlogin.3: ATTRIBUTES: Note function that is not thread-safe

[PATCH v2] getlogin.3: ATTRIBUTES: Note function that is not thread-safe

[Peng Haitao]

The function getlogin() is not thread safe.
The function cuserid() is thread-safe with exceptions.

Signed-off-by: Peng Haitao <penght-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
---
 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
-- 
1.8.1.4

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Re: [PATCH v2] getlogin.3: ATTRIBUTES: Note function that is not thread-safe

[Michael Kerrisk]

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 <penght-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
> ---
>  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
> 

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