Re: sendmsg

[Kurt Van Dijck <kurt.van.dijck@eia.be>]

On Mon, Jan 16, 2012 at 03:28:24PM +0000, Wolfgang wrote:
> > I'm just pushed an update that fixes this. 
> Great! Thanks.
> 
> 
>  	while (1) {
> 		
>  		iov.iov_len = s.pkt_len;
>  		msg.msg_namelen = sizeof(src);
>  		msg.msg_controllen = sizeof(ctrlmsg);
> 		msg.msg_flags = 0;
>  
>  			
> 		ret = recvmsg(sock, &msg, 0);
>  
> 
> 		if ((msg.msg_flags & MSG_DONTROUTE) == 0)
>  			{
>  				src.can_addr.j1939.addr = J1939_NO_ADDR;
>  				src.can_ifindex = if_nametoindex("can1");
>  				sendmsg(s2, &msg, 0);
>  			}
> 
>                   } 
> 
> 
> 
> Is it possible or what do I have to change that sendmsg will send the _same_ 
> frame which is received? Now the dlc is always 0x400 as declared in s.pkt_len.
after recvmsg(), do
	msg.iov_len = ret;

I believe you understand why?
Kurt