From mboxrd@z Thu Jan 1 00:00:00 1970 From: Flavio Leitner Subject: [PATCH] ip.7: Improve explanation about calling listen or connect Date: Wed, 9 May 2012 09:30:36 -0300 Message-ID: <1336566636-14713-1-git-send-email-fbl@redhat.com> Cc: linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, netdev , Flavio Leitner To: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Return-path: Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org Signed-off-by: Flavio Leitner --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html