Socket Broadcasting

[mountainash]

When trying to broadcast using the following code I am not seeing any data been even been sent from my network card (snooping using Ethereal). Please help.

var s = new Socket;
s.create(1364, $SOCK_DGRAM);

var stream = new StringStream();

stream.write(0x09, 0x2b, .... 0x01);
s.sendTo(stream, stream.length, 64512);

[SWFKit]

Hi, the socket must get the broadcast permission by using the setSockOpt method.

var s = new Socket;
s.create(1364, $SOCK_DGRAM);
s.setSockOpt(0x0020, 1);

var s2 = new Socket;
s2.create(64512, $SOCK_DGRAM);
s2.onReceive = function ()
{
var st = new StringStream;
this.receiveFrom(st, 65536);

trace(st);
}

var stream = new StringStream();

stream.write("hello");

s.sendTo(stream, stream.length, 64512);

[mountainash]

Wow, thanks for the quick reply - what service!

That worked, now my next problem is when I send a byte using stream.write(0x09,0x2b...); it's showing 3 blank (00) bytes between each value sent.

How do I stop this?

[SWFKit]

Hi,

The write methods takes the integer parameters as 4-bytes int, so you get three extra 00.

You can use the put method to avoid the problem.

stream.put(0x09);
...
stream.put(0x01);

[mountainash]

I have implimented this and am getting a reply but for some reason I the SWFKit app not seeing all the data in the reply packet (only getting 42 bytes not 83 that I should be). Can you tell me why this would be occuring?

[SWFKit]

Some data must have been lost. Please send us the code, we will help you to resolve the problem.

[mountainash]

The code has been emailed to you.

[SWFKit]

Hi, it works ok now. Please check mail.

var s2 = new Socket;
s2.create(64512, $SOCK_DGRAM);
s2.st = new StringStream;
s2.onReceive = function ()
{
   this.receiveFrom(this.st, 65535);
   
   if (this.st.length >= 126)
   {
   trace(this.st.length);
   for (i = 0; i < this.st.length; i++)
   {
   var value = this.st.get();
   var s = value.format("0x%02x");
   trace(s);
   }
   
   //reset the stringstream
   this.st.length = 0;
   this.st.getPos = this.st.putPos = 0;
   }
}