#include?
#include?
#include?
#include“ip.h“

#define?_W64

#include?“pcap.h“
#pragma?comment（lib“wpcap.lib“）
#pragma?comment（lib“ws2_32“）



int?ip_Check_SUM（netp_ip_header?*header）???//ip首部檢驗和。
{
	netp_ip_header?*temp=header;
	unsigned?long?sum;
	int?ipLnword;
	/*這個步驟是在轉(zhuǎn)載IP報的時候進(jìn)行的
	//將校驗和字段值置為0
	u_short?check=temp->crc;
	temp->crc=0x0000;
	*/
	//計算IP首部長度，并將其轉(zhuǎn)換為字個數(shù)
	ipL=（header->ver_ihl&0x0f）;
	nword=（ipL*4）/2;
	//構(gòu)建存儲ip首部數(shù)據(jù)的緩沖數(shù)組
	//u_short?buffer[nword]=temp;
	//計算校驗和
????for（sum?=?0;?nword?>?0;?nword--）{

		//printf（“狂%04x?\n“*（（unsigned?short?*）?temp））;
????????sum?+=*（（unsigned?short?*）?temp）++;
		//if?（sum&0x00000000）???????/*?if?high-order?bit?set?fold?*/
			//sum?=?（sum?&?0xFFFF）?+?（sum>>?16）?
		//printf（“校驗和為:%04x\n“sum）;
	}
	//printf（“低16位%04x\n“sum&0xFFFF）;
	//printf（“高位%04x\n“sum>>16）;
	sum?=?（sum>>16）?+?（sum&0xFFFF）;
	sum?+=?（sum>>16）;
	//sum=~sum;
	if（sum==0xFFFF）
	{
		return?1;
	}
	else
		return?-1;
}
/*?prototype?of?the?packet?handler?*/
void?packet_handler_ip（u_char?*param?const?struct?pcap_pkthdr?*header?const?u_char?*pkt_data）
{
	struct?tm?*ltime;
	char?timestr[16];
	netp_ip_header?*ih;?//定義ip頭部指針
	int?i=0;???//用于判斷用戶是否繼續(xù)解析。
	int?e=0;
	time_t?local_tv_sec;??//時間

	/*
	?*?unused?parameter
	?*/
	（VOID）（param）;//??這有什么用？

	/*?將時間戳轉(zhuǎn)換成可識別的格式?*/
	local_tv_sec?=?header->ts.tv_sec;
	ltime=localtime（&local_tv_sec）;
	strftime（?timestr?sizeof?timestr?“%H:%M:%S“?ltime）;


	/*?打印數(shù)據(jù)包的時間戳和長度?*/
	printf（“%s.%.6d?len:%d?\n“?timestr?header->ts.tv_usec?header->len）;


	/*?獲得IP數(shù)據(jù)包頭部的位置?*/
	ih?=?（netp_ip_header?*）?（pkt_data?+14）;?//length?of?ethernet?header

	
	e=sizeof（ih）;
	if（ip_Check_SUM（ih）==1）
	{
		printf（“源ip地址：“）;
????	printf（“%d.%d.%d.%d\n“
		ih->source_address.byte1
		ih->source_address.byte2
		ih->source_address.byte3
		ih->source_address.byte4）;
	????printf（“目的ip地址：“）;
	????printf（“%d.%d.%d.%d\n“
		ih->destination_address.byte1
		ih->destination_address.byte2
		ih->destination_address.byte3
		ih->destination_address.byte4）;
		printf（“版本號：%d\n“ih->ver_ihl>>4）;
	????printf（“首部長度：%d\n“ih->ver_ihl&0x0F）;?
	????printf（“區(qū)分服務(wù)：%d\n“ih->diff_services）;
	????printf（“總長度：%d\n“ntohs（ih->total_length））;?
//	printf（“總長度：%d\n“ih->total_length）;?//區(qū)別？為什么把網(wǎng)絡(luò)序轉(zhuǎn)換到主機(jī)序？
	????printf（“標(biāo)識：%d\n“ih->identification）;?
	????printf（“片偏移：%d\n“）;
	????printf（“生存時間：%d\n“ih->time_to_live）;?
	????printf（“首部檢驗和：%d\n“ih->header_checksum）;
	????printf（“高層協(xié)議類型：%d\n“ih->protocol）;?
		switch（ih->protocol）
		{
		case?17:
			printf（“（高層協(xié)議類型為UDP協(xié)議！）\n“）;
			
			
	????case?6:
			printf（“（高層協(xié)議類型為TCP協(xié)議!）\n“）;
					//開始進(jìn)行TCP?頭部結(jié)構(gòu)的相應(yīng)的處理.
		default:
			printf（“（其他協(xié)議）\n“）;
			break;
		}
	}
	else
	{
		printf（“經(jīng)計算檢驗和不為0，丟棄該包！“）;
	}
	printf（“\n“）;
	printf（“\n“）;

}



int?IP_AnalyTest（）
{
	pcap_if_t?*alldevs;
	pcap_if_t?*d;
	int?inum;
	int?i=0;
	pcap_t?*adhandle;
	char?errbuf[PCAP_ERRBUF_SIZE];

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2012-03-22?10:25??PCAP\
?????目錄???????????0??2012-03-22?10:25??PCAP\Debug\
?????目錄???????????0??2012-03-20?19:07??PCAP\Include\
?????文件????????3928??2009-10-07?01:20??PCAP\Include\bittypes.h
?????文件????????5756??2009-10-07?01:19??PCAP\Include\ip6_misc.h
?????文件???????16958??2008-11-18?12:26??PCAP\Include\Packet32.h
?????目錄???????????0??2012-03-20?19:07??PCAP\Include\pcap\
?????文件????????2393??2009-10-07?01:20??PCAP\Include\pcap-bpf.h
?????文件????????2125??2009-10-07?01:20??PCAP\Include\pcap-namedb.h
?????文件????????2873??2012-03-19?13:01??PCAP\Include\pcap-stdinc.h
?????文件????????2320??2009-10-07?01:20??PCAP\Include\pcap.h
?????文件????????2016??2009-10-07?01:20??PCAP\Include\pcap\bluetooth.h
?????文件???????29111??2009-10-07?01:20??PCAP\Include\pcap\bpf.h
?????文件????????3421??2009-10-07?01:20??PCAP\Include\pcap\namedb.h
?????文件???????14058??2010-06-25?09:44??PCAP\Include\pcap\pcap.h
?????文件????????5567??2009-10-07?01:20??PCAP\Include\pcap\sll.h
?????文件????????2925??2009-10-07?01:20??PCAP\Include\pcap\usb.h
?????文件????????2155??2009-10-07?01:20??PCAP\Include\pcap\vlan.h
?????文件???????14945??2007-09-27?11:32??PCAP\Include\remote-ext.h
?????文件????????4033??2006-08-09?17:16??PCAP\Include\Win32-Extensions.h
?????文件????????5195??2012-03-21?23:24??PCAP\ip.c
?????文件????????1878??2012-03-21?23:23??PCAP\ip.h
?????目錄???????????0??2012-03-20?19:07??PCAP\Lib\
?????文件???????20814??2010-06-25?10:01??PCAP\Lib\libpacket.a
?????文件???????54276??2010-06-25?10:02??PCAP\Lib\libwpcap.a
?????文件????????8450??2010-06-25?09:47??PCAP\Lib\Packet.lib
?????文件???????19320??2010-06-25?09:47??PCAP\Lib\wpcap.lib
?????目錄???????????0??2012-03-20?19:07??PCAP\Lib\x64\
?????文件????????8290??2010-06-25?09:49??PCAP\Lib\x64\Packet.lib
?????文件???????18892??2010-06-25?09:49??PCAP\Lib\x64\wpcap.lib
?????文件????????3476??2012-03-21?23:24??PCAP\mac.c
............此處省略11個文件信息