#include?
#include?
#include?“pcap.h“
void?usage（）;
void?dispatcher_handler（u_char?*?const?struct?pcap_pkthdr?*?const?u_char?*）;

int?main（）
{
pcap_t?*fp;
char?errbuf[PCAP_ERRBUF_SIZE];
struct?timeval?st_ts;
??
pcap_if_t?*alldevs;
pcap_if_t?*d;
int?inum;
int?i=0;
pcap_t?*adhandle;

????/*?獲取本機設備列表?*/
????if?（pcap_findalldevs_ex（PCAP_SRC_IF_STRING?NULL?&alldevs?errbuf）?==?-1）
????{
????????fprintf（stderr“Error?in?pcap_findalldevs:?%s\n“?errbuf）;
????????exit（1）;
????}
????
????/*?打印列表?*/
????for（d=alldevs;?d;?d=d->next）
????{
????????printf（“%d.?%s“?++i?d->name）;
????????if?（d->description）
????????????printf（“?（%s）\n“?d->description）;
????????else
????????????printf（“?（No?description?available）\n“）;
????}
????
????if（i==0）
????{
????????printf（“\nNo?interfaces?found!?Make?sure?WinPcap?is?installed.\n“）;
????????return?-1;
????}
????
????printf（“Enter?the?interface?number?（1-%d）:“i）;
????scanf（“%d“?&inum）;
????
????if（inum??i）
????{
????????printf（“\nInterface?number?out?of?range.\n“）;
????????/*?釋放設備列表?*/
????????pcap_freealldevs（alldevs）;
????????return?-1;
????}
????
????/*?跳轉到選中的適配器?*/
????for（d=alldevs?i=0;?inext?i++）;
????
????/*?打開設備?*/
????if?（?（adhandle=?pcap_open（d->name??????????//?設備名
??????????????????????????????65536????????????//?65535保證能捕獲到不同數(shù)據鏈路層上的每個數(shù)據包的全部內容
							?????PCAP_OPENFLAG_PROMISCUOUS????//?混雜模式
??????????????????????????????1000?????????????//?讀取超時時間
??????????????????????????????NULL?????????????//?遠程機器驗證
??????????????????????????????errbuf????????????//?錯誤緩沖池
??????????????????????????????）?）?==?NULL）
????{
????????fprintf（stderr“\nUnable?to?open?the?adapter.?%s?is?not?supported?by?WinPcap\n“?d->name）;
????????/*?釋放設備列表?*/
????????pcap_freealldevs（alldevs）;
????????return?-1;
????}
????
????printf（“\nlistening?on?%s...\n“?d->description）;
????fp=adhandle;

????/*?將接口設置為統(tǒng)計模式?*/
????if?（pcap_setmode（fp?MODE_STAT）<0）
????{
????????fprintf（stderr“\nError?setting?the?mode.\n“）;
????????pcap_close（fp）;
????????/*?釋放設備列表?*/
????????return?1;
????}

????printf（“NetWork?traffic?summary:\n“）;

????/*?開始主循環(huán)?*/
????pcap_loop（fp?0?dispatcher_handler?（PUCHAR）&st_ts）;

????pcap_close（fp）;
????return??1;
}
/*?每次捕獲到數(shù)據包時，libpcap都會自動調用這個回調函數(shù)?*/
void?dispatcher_handler（u_char?*state?const?struct?pcap_pkthdr?*header?const?u_char?*pkt_data）
{
????struct?timeval?*old_ts?=?（struct?timeval?*）state;
????u_int?delay;
????LARGE_INTEGER?BpsPps;
????struct?tm?*ltime;
????char?timestr[16];
????time_t?local_tv_sec;

????/*?以毫秒計算上一次采樣的延遲時間?*/
????/*?這個值通過采樣到的時間戳獲得?*/
????delay=（header->ts.tv_sec?-?old_ts->tv_sec）?*?1000000?-?old_ts->tv_usec?+?header->ts.tv_usec;
????/*?獲取每秒的比特數(shù)b/s?*/
????Bps.QuadPart=（（（*（LONGLONG*）（pkt_data?+?8））?*?8?*?1000000）?/?（delay））;
????/*????????????????????????????????????????????^??????^
??????????????????????????????????????????????????|

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????549??2008-03-27?15:10??流量統(tǒng)計程序\流量統(tǒng)計程序.dsw

?????文件??????50176??2008-04-12?20:27??流量統(tǒng)計程序\流量統(tǒng)計程序.ncb

?????文件???????1390??2008-04-12?20:18??流量統(tǒng)計程序\流量統(tǒng)計程序.plg

?????文件??????77824??2008-04-12?20:18??流量統(tǒng)計程序\Debug\vc60.pdb

?????文件?????517120??2008-04-12?20:18??流量統(tǒng)計程序\Debug\流量統(tǒng)計程序.pdb

?????文件?????164864??2008-04-12?20:27??流量統(tǒng)計程序\Debug\vc60.idb

?????文件?????188504??2008-04-12?20:18??流量統(tǒng)計程序\Debug\流量統(tǒng)計程序.exe

?????文件?????220276??2008-04-12?20:18??流量統(tǒng)計程序\Debug\流量統(tǒng)計程序.ilk

?????文件??????????0??2008-04-12?20:18??流量統(tǒng)計程序\Debug\流量統(tǒng)計程序.sbr

?????文件????4697864??2008-04-12?20:18??流量統(tǒng)計程序\Debug\流量統(tǒng)計程序.pch

?????文件??????19971??2008-04-12?20:18??流量統(tǒng)計程序\Debug\流量統(tǒng)計程序.obj

?????文件????2008064??2008-04-12?20:18??流量統(tǒng)計程序\Debug\流量統(tǒng)計程序.bsc

?????文件???????4381??2008-04-12?20:18??流量統(tǒng)計程序\流量統(tǒng)計程序.cpp

?????文件???????3682??2008-04-12?20:26??流量統(tǒng)計程序\流量統(tǒng)計程序.dsp

?????文件??????54784??2008-04-12?20:27??流量統(tǒng)計程序\流量統(tǒng)計程序.opt

?????目錄??????????0??2008-04-12?19:30??流量統(tǒng)計程序\Debug

?????目錄??????????0??2008-04-12?19:30??流量統(tǒng)計程序

-----------?---------??----------?-----??----

??????????????8009449????????????????????17