[PATCH] getnetent.3: ATTRIBUTES: Note functions that aren't thread-safe

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

The markings match glibc markings.

getnetent:    MT-Unsafe race:netent race:netentbuf env locale

getnetbyname: MT-Unsafe race:netbyname env locale

getnetbyaddr: MT-Unsafe race:netbyaddr locale

setnetent:    MT-Unsafe race:netent env locale
endnetent:    MT-Unsafe race:netent env locale

Signed-off-by: Zeng Linggang <zenglg.jy-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
---
 man3/getnetent.3 | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/man3/getnetent.3 b/man3/getnetent.3
index f071744..c4f197e 100644
--- a/man3/getnetent.3
+++ b/man3/getnetent.3
@@ -142,6 +142,57 @@ error occurs or the end of the file is reached.
 .TP
 .I /etc/networks
 networks database file
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbw14 lb lbw25
+l l l.
+Interface	Attribute	Value
+T{
+.BR getnetent ()
+T}	Thread safety	T{
+MT-Unsafe race:netent
+.br
+race:netentbuf env locale
+T}
+T{
+.BR getnetbyname ()
+T}	Thread safety	T{
+MT-Unsafe race:netbyname
+.br
+env locale
+T}
+T{
+.BR getnetbyaddr ()
+T}	Thread safety	T{
+MT-Unsafe race:netbyaddr
+.br
+locale
+T}
+T{
+.BR setnetent (),
+.br
+.BR endnetent ()
+T}	Thread safety	T{
+MT-Unsafe race:netent env
+.br
+locale
+T}
+.TE
+
+In the above table,
+.I netent
+in
+.I race:netent
+signifies that if any of the functions
+.BR setnetent (3),
+.BR getnetent (3),
+or
+.BR endnetent (3)
+are used in parallel in different threads of a program,
+then data races could occur.
 .SH CONFORMING TO
 4.3BSD, POSIX.1-2001.
 .SH NOTES
-- 
1.9.3

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