quote(C, "
	#include <pcap.h>

	typedef pcap_t *pcap_handle;
	typedef struct pcap_pkthdr pcap_pkthdr;

	typedef void (*pcap_callback)(u_char *, const struct pcap_pkthdr *,
			 const u_char *);

")

/* type defitions */
/* .............. */

typedef [abstract, ptr] void * pcap_handle;

struct timeval {
	int tv_sec;
	int tv_usec;
};

typedef struct {
	struct timeval ts;
	int caplen;
	int len;
} pcap_pkthdr;

/* function definitions */
/* .................... */

/* experimental callback handler */
typedef [ptr,mltype("string -> pcap_pkthdr -> string -> unit")] void *pcap_callback;

/* tested, OK */
pcap_handle pcap_open_live([in,string] char *dev, [in] int snaplen, 
		[in] int promisc, [in] int to_ms, [in,out,string] char *err);

/* tested, OK */
[string] char *pcap_lookupdev([in,out,string] char *errbuf);

/* broken ! */
[string] unsigned char *pcap_next([in] pcap_handle p, [in,out] pcap_pkthdr * h)
	quote(call, "_res = (char*) pcap_next(p,h); 
	");

/* tested, OK */
void pcap_close(pcap_handle p);

/* broken ! */
int pcap_loop([in] pcap_handle p, [in] int cnt, [in] pcap_callback callback, 
		[in,string] char *user);

int pcap_dispatch([in] pcap_handle p, [in] int cnt, [in] pcap_callback callback,
	[in,string] char *user);