I seem to be getting this error:
error C2664: 'pcap_loop' : cannot convert parameter 3 from 'void (u_char *,const pcap_pkthdr *,const u_char *)' to 'pcap_handler'
I tried wrapping the packet_handler class is extern "C" {...} and still same thing.
my code is pretty much this...
//copied more or less from the examples.....
void TableState::listen(void)
{
pcap_if_t *alldevs;
pcap_if_t *d;
int inum;
int j=0;
pcap_t *adhandle;
char errbuf[PCAP_ERRBUF_SIZE];if (pcap_findalldevs(&alldevs, errbuf) == -1)
{
fprintf(stderr,"Error in pcap_findalldevs: %s\n", errbuf);
exit(1);
}
/* Print the list */
//Just use the first adapter.... inum = 1;
/* Jump to the selected adapter */
for(d=alldevs, j=0; j< inum-1 ;d=d->next, j++);
/* Open the adapter */
if ( (adhandle= pcap_open_live(d->name, // name of the device
65536, // portion of the packet to capture.
// 65536 grants that the whole packet will be captured on all the MACs.
1, // promiscuous mode
1000, // read timeout
errbuf // error buffer
) ) == NULL)
{
fprintf(stderr,"\nUnable to open the adapter. %s is not supported by WinPcap\n");
/* Free the device list */
pcap_freealldevs(alldevs);
}
printf("\nlistening on %s...\n", d->description);
/* At this point, we don't need any more the device list. Free it */
pcap_freealldevs(alldevs);
/* start the capture */
pcap_loop(adhandle, 0,packet_handler, NULL);
}
void TableState::packet_handler(u_char * param, const struct pcap_pkthdr * header, const u_char * pkt_data)
{
//Just to show that I'm handling packets........ ddlg->PostMessage(WM_SETMESSAGE,400,4); }
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