[PD] 0.43 should still be a test version

Martin martin.peach at sympatico.ca
Tue May 10 21:00:45 CEST 2011

On 10/05/11 01:40 PM, Matteo Sisti Sette wrote:
> On 05/10/2011 06:56 PM, Martin wrote:
>> I don't have any trouble here with [udpsend] and debian lenny.
> I don't have any trouble with [udpsend] either. It's [netsend 1] that 
> can't broadcast (neither in Pd Vanilla 0.42.5 nor Pd Extended 0.42.5)
>> Any time you get permission denied it's up to you to set the
>> permissions. (If a program could do that, why have permissions at all?)
> That sounds very reasonable, but then how comes that [udpsend] can 
> broadcast packets and [netsend 1] can't (on the same system, same 
> machine, I've tried both right now)?
> My guess is that either
> A) [netsend 1] is doing something wrong, trying to do something that 
> is not really necessary and that requires some permissions that the 
> program doesn't have
> B) it is printing a wrong error message and the failure is not really 
> due to a denied permission.
OK I see now. [udpsend] has this in it right after the socket is created:

/* Based on zmoelnig's patch 2221504:
Enable sending of broadcast messages (if hostname is a broadcast address)*/
     if( 0 != setsockopt(sockfd, SOL_SOCKET, SO_BROADCAST, (const void 
*)&broadcast, sizeof(broadcast)))
         udpsend_sock_err(x, "couldn't switch to broadcast mode");
#endif /* SO_BROADCAST */

...and broadcast is just an int:
     int                 broadcast = 1;/* nonzero is true */

I guess if something like that were to be added to the netsend_connect 
function it would work.


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