netdev - IP_MULTICAST_IF getsockopt man part

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Message-ID: <20120504090013.GA2362@minipsycho>
Date:	Fri, 4 May 2012 11:00:14 +0200
From:	Jiri Pirko <jpirko@...hat.com>
To:	mtk.manpages@...il.com
Cc:	linux-man@...r.kernel.org, netdev@...r.kernel.org
Subject: IP_MULTICAST_IF getsockopt man part

Hi.

<quote>
IP_MULTICAST_IF (since Linux 1.2)
	              Set the local device for a multicast socket.
		      Argument is an ip_mreqn or ip_mreq structure
		      similar to IP_ADD_MEMBERSHIP.
</quote>

That is not true. Setsockopt recognizes only ip_mreqn and in_addr. I
made patch which makes it recognize ip_mreq as well. So that would be
probably ok.
http://patchwork.ozlabs.org/patch/156815/

On the other hand, getsockopt works only with in_addr. That I think is
good behaviour but manpages here needs to be corrected in this way (read
part needs to be added here)

Thanks!

Jirka
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