[PATCH] getprotoent_r.3: ATTRIBUTES: Note functions that are thread-safe

[Zeng Linggang <zenglg.jy-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>]

After research, We think
* getprotoent_r(),
* getprotobyname_r(),
* getprotobynumber_r(),
are thread-safe. But, there are not
markings of them in glibc document.

Signed-off-by: Zeng Linggang <zenglg.jy-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
---
 man3/getprotoent_r.3 | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/man3/getprotoent_r.3 b/man3/getprotoent_r.3
index 8d25c0c..00f76b9 100644
--- a/man3/getprotoent_r.3
+++ b/man3/getprotoent_r.3
@@ -128,6 +128,23 @@ is too small.
 Try again with a larger buffer
 (and increased
 .IR buflen ).
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR getprotoent_r (),
+.br
+.BR getprotobyname_r (),
+.br
+.BR getprotobynumber_r ()
+T}	Thread safety	MT-Safe locale
+.TE
+
 .SH CONFORMING TO
 These functions are GNU extensions.
 Functions with similar names exist on some other systems,
-- 
1.9.3

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