Test libcap library

pcaptest.c

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

int main(int argc, char *argv[])
{
	char *dev, errbuf[PCAP_ERRBUF_SIZE];
	dev = pcap_lookupdev(errbuf);
	if( dev == NULL)
	{
		fprintf(stderr,"Could Not find default device : %s\n",errbuf);
		return(2);
	}
	printf("Device: %s\n",dev);
	return(0);
}