Re: IP_MULTICAST_IF getsockopt man part

On Fri, May 4, 2012 at 9:00 PM, Jiri Pirko [off-list ref] wrote:

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)

Jirka,

I'm having trouble to understand what you mean. Perhaps it would be
simplest if you showed your proposed replacement text for the text
quoted above.

Thanks,

Michael



-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/