linux-c-programming.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* Question on socket of broadcast
@ 2004-03-18 11:15 Wen Guangcheng
  0 siblings, 0 replies; only message in thread
From: Wen Guangcheng @ 2004-03-18 11:15 UTC (permalink / raw)
  To: linux-c-programming

Hello,
I create a socket for broadcast by

dhcpSocket = socket(PF_PACKET, SOCK_PACKET, htons(ETH_P_ALL));
setsockopt(dhcpSocket, SOL_SOCKET, SO_BROADCAST, &flags, sizeof(int *));

and send a message by

sendto(dhcpSocket,&UdpIpMsgSend,sizeof(struct packed_ether_header)+
    sizeof(udpiphdr)+sizeof(dhcpMessage),0,
    &addr,sizeof(struct sockaddr)

then receive a replied broadcast message by

recvfrom(dhcpSocket,&UdpIpMsgRecv,sizeof(udpipMessage),0,(struct sockaddr
*)&addr,&i);

It works well on normal LAN. But on a wireless LAN the message
which was sent by the socket. is received from itself.
Should a message sent by broadcast socket be recieved by itself?

Thanks in advance.

--Wen


^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2004-03-18 11:15 UTC | newest]

Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-03-18 11:15 Question on socket of broadcast Wen Guangcheng

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).