AF_INET?
Amit Kucheria wrote:
> Can anybody explain whats wrong with the following piece of code?
>
> Specifically, the bind() fails. I have a clue that its something to do
> with packet sockets, but what ? I checked my kernel, packet sockets are
> compiled in.
>
> Regards,
> Amit
>
> -------------------------------------------------
> struct sockaddr_ll me, he;
>
> int main(int argc, char *argv[])
> {
> struct sockaddr hwaddr;
>
> if (argc < 2)
> {
> usage(argv[0]);
> exit(1);
> }
> strcpy(device, argv[1]);
>
> sockfd = socket(PF_PACKET, SOCK_DGRAM, 0);
> if (sockfd < 0)
> {
> DBG("main(): unable to create socket\n");
> perror("main()");
> return -1;
> }
>
> req_dest.s_addr = address_generate(); /* linklocal address we want to own */
> req_src.s_addr = 0; /* send with IP addr 0.0.0.0 */
>
> ret = get_ether_addr(device, &hwaddr);
> if (ret < 0)
> {
> ERR("main(): get_ether_addr failed\n");
> exit(-1);
> }
> me.sll_family = AF_INET;
> me.sll_ifindex = ifindex;
> me.sll_protocol = htons(ETH_P_ARP);
> if (bind(sockfd, (struct sockaddr*)&me, sizeof(me)) == -1)
> {
> perror("main(): bind");
> exit(2);
> }
> <snip>
> --------------------------------------------------
>
> On Sat, 15 Dec 2001, Amit Kucheria wrote:
>
>
>>On Fri, 14 Dec 2001, James Stevenson wrote:
>>
>>
>>>it should not take long just create a raw socket and send and
>>>eth header and arp packet you should see it.
>>>
>>>as far as i can see this should work i am thinking it is a problem with
>>>libnet
>>>i have never used it but i have tried other libs that are meant todo the
>>>same
>>>things but i have always ened up creating my own structs etc.. because they
>>>have created nothing but problems then if you need to make it portable you
>>>only
>>>need to change the socket type between certin OS's
>>>
>>
>
--
Casey Carter
Casey@Carter.net
ccarter@uiuc.edu
AIM: cartec69
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