#include <pcap.h>

main(int argc, char **argv)
{
	pcap_t *fp;
	char errbuf[PCAP_ERRBUF_SIZE];
	int c;
	struct bpf_program fcode;
	

	
	/* Open the capture file */
	if ((fp = pcap_open_offline(argv[1],			// name of the device
						 errbuf					// error buffer
						 )) == NULL)
	{
		fprintf(stderr,"\nUnable to open the file %s.\n", argv[1]);
		return -1;
	}


	pcap_close(fp);
	return 0;
}


by typing "gcc -o test.exe test.c -lwpcap"