netdev - [PATCH] ip.7: Improve explanation about calling listen or connect

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Message-Id: <1336566636-14713-1-git-send-email-fbl@redhat.com>
Date:	Wed,  9 May 2012 09:30:36 -0300
From:	Flavio Leitner <fbl@...hat.com>
To:	mtk.manpages@...il.com
Cc:	linux-man@...r.kernel.org, netdev <netdev@...r.kernel.org>,
	Flavio Leitner <fbl@...hat.com>
Subject: [PATCH] ip.7: Improve explanation about calling listen or connect

Signed-off-by: Flavio Leitner <fbl@...hat.com>
---
 man7/ip.7 |   15 +++++++++------
 1 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/man7/ip.7 b/man7/ip.7
index 9f560df..84fe32d 100644
--- a/man7/ip.7
+++ b/man7/ip.7
@@ -69,12 +69,11 @@ For
 you may specify a valid IANA IP protocol defined in
 RFC\ 1700 assigned numbers.
 .PP
-.\" FIXME ip current does an autobind in listen, but I'm not sure
-.\" if that should be documented.
 When a process wants to receive new incoming packets or connections, it
 should bind a socket to a local interface address using
 .BR bind (2).
-Only one IP socket may be bound to any given local (address, port) pair.
+In this case, only one IP socket may be bound to any given local
+(address, port) pair.
 When
 .B INADDR_ANY
 is specified in the bind call, the socket will be bound to
@@ -82,10 +81,14 @@ is specified in the bind call, the socket will be bound to
 local interfaces.
 When
 .BR listen (2)
-or
+is called on an unbound socket, the socket is automatically bound
+to a random free port with the local address set to
+.BR INADDR_ANY .
+When
 .BR connect (2)
-are called on an unbound socket, it is automatically bound to a
-random free port with the local address set to
+is called on an unbound socket, the socket is automatically bound
+to a random free port or an usable shared port with the local address
+set to
 .BR INADDR_ANY .
 
 A TCP local socket address that has been bound is unavailable for
-- 
1.7.7.1

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