#include <stdio.h>
#include <pcap.h>

#define NUM_PACKETS 10

void pcap_handler_cb(u_char *user, const struct pcap_pkthdr *pkt_header, const u_char *pkt_data)
{
	printf("Got packet: %d bytes captured:", pkt_header->caplen);
	if (pkt_header->caplen > 2)
		printf("%02X %02X ... \n", pkt_data[0], pkt_data[1]);
	else
		printf("...\n");
}

int main(int argc, char *argv[])
{
	char errbuf[PCAP_ERRBUF_SIZE];
	char *default_device;
	pcap_t* ph;
	default_device = pcap_lookupdev(errbuf);
	if (!default_device)
	{
		fprintf(stderr, "%s\n", errbuf);
		exit(1);
	}
	printf("Opening %s\n", default_device);
	ph = pcap_open_live(default_device, BUFSIZ, 1, 0, errbuf);
	printf("Capturing on %s\n", default_device);
	pcap_loop(ph, NUM_PACKETS, pcap_handler_cb, NULL);
	printf("Done.\n");
	return 0;
}