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
>
>
--
The statement below is true.
The statement above is false.
^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^
Amit Kucheria
EECS Grad. Research Assistant
University of Kansas @ Lawrence
(R)+1-(785)-830 8521 ||| (O)+1-(785)-864 7774
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