Re: [PATCH 2/5] AF_UNIX: enable/disable multicast withgetsockopt/setsockopt

[Eric Dumazet]

Le vendredi 24 septembre 2010 Ã 18:25 +0100, Alban Crequy a Ãcrit :
> Multicast can be enabled or disabled after a socket is allocated but this
> cannot be changed once the socket is bound or connected.
> 
> Userspace applications can enable multicast on an Unix stream socket:
>   sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
>   #define UNIX_MULTICAST 1
>   val = 1;
>   len = sizeof(val);
>   ret = setsockopt(sockfd, 0, UNIX_MULTICAST, &val, len);
> 
> Signed-off-by: Alban Crequy <alban.crequy@xxxxxxxxxxxxxxx>


> +		if (val != 0) {
> +			u->multicast = 1;
> +		} else {
> +			u->multicast = 0;
> +		}

u->multicast = !!val;



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