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This may help you, I posted this http://www.gamedev.net/topic/635600-how-to-find-a-host-running-the-game/#entry5013275 you then process the packets as normal...<br><br> int received = enet_socket_receive(recvsock, &senderAddress, &buf, 1);<br> if(received==0) { /* would have blocked, need to resend later */ }<br> else if(received < 0) { /* something went wrong, error! */ }<br> else<br> {process packet}<br><br><br><div><div id="SkyDrivePlaceholder"></div><hr id="stopSpelling">Date: Mon, 7 Jan 2013 09:51:57 +0100<br>From: ruud@racer.nl<br>To: enet-discuss@cubik.org<br>Subject: Re: [ENet-discuss] How to send and recevice boradcast packets using enet<br><br><div dir="ltr">I don't see p2udp_socket_create in the ENet library, so are you trying to mix 2 network libraries?<div><br></div><div>Ruud</div></div><div class="ecxgmail_extra"><br><br><div class="ecxgmail_quote">On Mon, Jan 7, 2013 at 7:33 AM, enetcub <span dir="ltr"><<a href="mailto:enet_club@126.com">enet_club@126.com</a>></span> wrote:<br>
<blockquote class="ecxgmail_quote" style="border-left:1px #ccc solid;padding-left:1ex">
<div style="font-family:\0065b0\005b8b\004f53;font-size:9pt">
<div>enet-discuss，</div>
<div> </div>
<div> i just be in a spot with
send and receiveing BROADCAST packets in enet, i don't know what is
the right way to playing with function enet_socket_receive</div>
<div> </div>
<div>//sender_code</div>
<div> </div>
<div> P2UdpSocket
sck=p2udp_socket_create(P2UDP_SOCKET_TYPE_DATAGRAM);<br>
if(INVALID_SOCKET == sck){<br>
fprintf(stderr,"error while create
sccket\n");<br>
return(EXIT_FAILURE);<br> }</div>
<div> //set as broadcast option<br>
p2udp_socket_set_option(sck,P2UDP_SOCKOPT_BROADCAST,1);</div>
<div> //set broadcast addrs<br> P2UdpAddress
p2u_addr;<br>
p2u_addr.host=P2UDP_HOST_BROADCAST;<br>
p2u_addr.port=P2UDP_HOST_TO_NET_16(P2U_PORT);</div>
<div> printf("starting send broadcast packages...\n");</div>
<div> //gererate notify package<br> char
p2u_act_msg[16];<br>
strcpy(p2u_act_msg,P2U_ASK_ALIVE_FLAG_MSG);</div>
<div> int
p2u_alive_host_count=0;
//queue length</div>
<div> while(1){<br>
p2udp_socket_send(sck,&p2u_addr,&p2u_act_msg,sizeof(p2u_act_msg));<br>
printf(".");<br>
Sleep(1000);<br> }</div>
<div> </div>
<div> </div>
<div>//recv_code</div>
<div> </div>
<div> P2UdpSocket
sck=p2udp_socket_create(P2UDP_SOCKET_TYPE_DATAGRAM);<br>
if(INVALID_SOCKET == sck){<br>
fprintf(stderr,"error while create a
cscoket\n");<br>
return(EXIT_FAILURE);<br> }</div>
<div>
p2udp_socket_set_option(sck,P2UDP_SOCKOPT_BROADCAST,1);</div>
<div> P2UdpAddress serv_addr;<br>
serv_addr.host=P2UDP_HOST_ANY;<br>
serv_addr.port=P2UDP_HOST_TO_NET_16(P2U_PORT);</div>
<div> int
iret=p2udp_socket_bind(sck,&serv_addr);<br>
if(SOCKET_ERROR == iret){<br>
fprintf(stderr,"bind socket with
error\n");<br>
p2udp_socket_shutdown(sck,0);<br>
return(EXIT_FAILURE);<br> }<br> //host who
send broadcast msg<br> P2UdpAddress
host_addr;<br> char msg_buf[1024];</div>
<div> int recv_len=0;<br>
while(1){printf("data length:%d\n",recv_len); ------------> this
alway got 0 or -1 ,why?<br>
recv_len=p2udp_socket_receive(sck,&host_addr,&msg_buf,sizeof(msg_buf));<br>
if(recv_len <=
0){<br>
fprintf(stderr,"error receiving
data..\n");<br>
//p2udp_socket_shutdown(sck,0);<br>
//return(EXIT_FAILURE);<br>
//break; //no msg or
blcked,just wait<br>
}else{<br>
static int
seq_count=0;<br>
memset(msg_buf+recv_len,'/0',1);<br>
printf("get broadcast message from %u:%d with length:%d has content:%s
seq_id=%d\n",<br>
host_addr.host,<br>
host_addr.port,<br>
recv_len,<br>
msg_buf,<br>
seq_count++);</div>
<div> //check
if send is alive
flag<br>
if(strcmp(msg_buf,P2U_ASK_ALIVE_FLAG_MSG)){<br>
printf("i am
alive\n");<br>
}else{<br>
printf("i am
dead\n");<br>
}<br>
memset(msg_buf,0,sizeof(msg_buf));<br>
}<br>
Sleep(1000);<br> }</div>
<div> p2udp_socket_shutdown(sck,0);</div>
<div> </div>
<div> </div>
<div> </div>
<div></div>
<div>enetcub，<a href="mailto:enet_club@126.com">enet_club@126.com</a></div>
<div>2013-01-07 </div></div>
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<br></blockquote></div><br></div>
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