From 6cea3be922110647df84a08e3a57cc395bec1d24 Mon Sep 17 00:00:00 2001
From: Gordon Bergling <gbe@FreeBSD.org>
Date: Sun, 3 Jul 2022 15:56:42 +0200
Subject: sockatmark(3): Add references to 4.4BSD IPC tutorials

Obtained from:	NetBSD
MFC after:	3 days
---
 lib/libc/net/sockatmark.3 | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/libc/net/sockatmark.3 b/lib/libc/net/sockatmark.3
index 61a1a9f52989..b44311234d0c 100644
--- a/lib/libc/net/sockatmark.3
+++ b/lib/libc/net/sockatmark.3
@@ -23,7 +23,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 13, 2002
+.Dd July 3, 2022
 .Dt SOCKATMARK 3
 .Os
 .Sh NAME
@@ -107,6 +107,21 @@ is a descriptor for a file, not a socket.
 .Sh SEE ALSO
 .Xr recv 2 ,
 .Xr send 2
+.Rs
+.%T "An Introductory 4.4BSD Interprocess Communication Tutorial"
+.%A Stuart Sechrest
+.Re
+.%U https://docs.freebsd.org/44doc/psd/20.ipctut/paper.pdf
+.Rs
+.%T "An Advanced 4.4BSD Interprocess Communication Tutorial"
+.%A Samuel J. Leffler
+.%A Robert S. Fabry
+.%A William N. Joy
+.%A Phil Lapsley
+.%A Steve Miller
+.%A Chris Torek
+.%U https://docs.freebsd.org/44doc/psd/21.ipc/paper.pdf
+.Re
 .Sh HISTORY
 The
 .Fn sockatmark
-- 
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