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From: cerr on 2 Feb 2010 13:43
Hi There,

I'm trying to send a UDP broadcast message to peers in my subnet using
following code:
struct sockaddr_in addr;
int fd;
string message = "Hello, World!";

if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
{
perror("socket");
return;
}

/* set up destination address */
memset(&addr,0,sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr("192.168.101.255");
addr.sin_port=htons(6767);
while (1) {
if (sendto(fd, message.c_str(), strlen(message.c_str()), 0,(struct
sockaddr *) &addr, sizeof(addr)) != message.size()){
cout << "Error:" << strerror(errno) << endl;
return;
}
else
{
cout << "sent:" << message << endl;
}
sleep(3);
}

I however do not see it showing-up in Wireshark... :( Why not? I
succesfully get "sent: Hello, World!" messages on my screen :(
Any clues?
Thank you!
--
roN
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