Actually, I did better now ... but I don't know what should be done to call
the corresponding dispatch
If someone can give me a hint
char *device0="phy0";
char *device1="phy1";
pcap0 = pcap_open_live(device0, BUFSIZ, 1, -1, errbuf);
pcap1 = pcap_open_live(device1, BUFSIZ, 1, -1, errbuf);
for(;;)
{
/* If you include STDIN_FILENO, be sure to read from it when you get
traffic from it, or select will return every time it is called,
since there will still be traffic waiting there.
*/
FD_ZERO(&fd_wait);
//FD_SET(STDIN_FILENO, &fd_wait);
FD_SET(pcap_fileno(pcap0), &fd_wait);
FD_SET(pcap_fileno(pcap1), &fd_wait);
st.tv_sec = 1;
st.tv_usec = 0; /* 1000 = 1 second */
t=select(FD_SETSIZE, &fd_wait, NULL, NULL, &st);
printf("t is %d\n",t);
switch(t)
{
case -1: /* Something went really wrong */
printf("Argh!\n\n");
exit(1);
case 0: /* We timed out, no trafffic */
printf( " Time out ! \n");
break;
default: /* We got traffic */
pcap_dispatch(pcap0,-1, (void *) packet_callback, NULL);
pcap_dispatch(pcap1,-1, (void *) packet_callback2, NULL);
}
// Put your service routine here.. is called when select times out or
when a packet is processed
}
On Sat, Dec 10, 2011 at 7:12 PM, abhinav narain
<[email protected]>wrote:
> Two threads are too large on this.
>
> I was unable to find how to set the set of interfaces to be restricted to
> 2 (the ones i want) and call the same callback on return from dispatch.
>
> This code is not right, but I am clueless to proceed
>
> Any direction will be good.
> <code>
> fd_set rfds;
> char * device="phy0";
> char * device1="phy1";
> handle1 = pcap_open_live(device, BUFSIZ, 1, 0, errbuf);
> handle2 = pcap_open_live(device1, BUFSIZ, 1, 0, errbuf);
>
> fd = pcap_get_selectable_fd(handle1);
> pcap_compile(handle1, &fcode, "type mgt subtype beacon", 1, 0);
> pcap_setfilter(handle1, &fcode);
>
> /*
>
>
> fd = pcap_get_selectable_fd(handle2);
>
>
> pcap_compile(handle2, &fcode, "type mgt subtype beacon", 1, 0);
>
>
> pcap_setfilter(handle2, &fcode);
>
>
> */
>
> while (retval == 0) {
> FD_ZERO(&rfds);
> FD_SET(fd, &rfds);
> tv.tv_sec = 1; /* timeout 1 sec */
> tv.tv_usec = 0;
> retval = select(fd + 1, &rfds, NULL, NULL, &tv);
>
> if(pcap_dispatch(handle1,-1,callback1,(u_char *)NULL) < 0 ){
> printf("error");
> }
> if(pcap_dispatch(handle2, -1,callback1,(u_char *)NULL) < 0 ){
> printf("error");
> }
>
> }
>
> </code>
>
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