#include?“StdAfx.h“
#include?“MyWinPcap.h“


//?file?process
MyWinPcap::MyWinPcap（void）:m_iCurNo（0）
{
	//使用GetModuleFileName獲取應(yīng)用程序路徑
	TCHAR?szModuleName[MAX_PATH];
	::GetModuleFileName（NULLszModuleNameMAX_PATH）;
	CString?strDir?=?szModuleName;
	strDir?=?strDir.Left（strDir.ReverseFind（TEXT（‘\\‘）））;?//?Left（）?->?Extracts?the?leftmost?nCount?characters?from?this?CStringT?object?and?returns?a?copy?of?the?extracted?substring

	CString?fileData;
	fileData.Format（TEXT（“%s\\packet.dmp“）strDir）;
	m_pfileData?=?new?CFile（fileDataCFile::modeCreate|CFile::modeReadWrite）;?//create?or?write?data（packet）?file

	CString?fileIndex;
	fileIndex.Format（TEXT（“%s\\packet.idx“）strDir）;
	m_pfileIndex?=?new?CFile（fileIndexCFile::modeCreate|CFile::modeReadWrite）;?//create?or?write?index（packet）?file
}

MyWinPcap::~MyWinPcap（void）
{????
	if（m_pfileData）
	{
		m_pfileData->Close（）;
		delete?m_pfileData;
		m_pfileData?=?NULL;?//?safer
	}
	if（m_pfileIndex）
	{
		m_pfileIndex->Close（）;
		delete?m_pfileIndex;
		m_pfileIndex?=?NULL;
	}
}

//?Append?packet
void?MyWinPcap::AppendPacket（packet?*pkt）
{
	const?pcap_pkthdr?*header?=?pkt->header;
????const?u_char?*data?=?pkt->pkt_data;
	++m_iCurNo;
	
	packet_index?index;
	index.no?=?m_iCurNo;
	index.pos?=?m_pfileData->GetPosition（）;
	index.len?=?sizeof（pcap_pkthdr）?+?header->len;

	m_pfileIndex->SeekToEnd（）;
	m_pfileIndex->Write（&indexsizeof（packet_index））;

	m_pfileData->SeekToEnd（）;
	m_pfileData->Write（headersizeof（pcap_pkthdr））;
	m_pfileData->Write（dataheader->len）;

	m_pfileIndex->Flush（）;?//?write?from?memory?to?disk?immediatly
	m_pfileData->Flush（）;
}

//?Get?packet
packet?*?MyWinPcap::GetPacket（int?m_iNo）
{
	int?iPos?=?（m_iNo-1）*sizeof（packet_index）;
	packet_index?pIndex;

	m_pfileIndex->Seek（iPosCFile::begin）;
	m_pfileIndex->Read（&pIndexsizeof（packet_index））;

	m_pfileData->Seek（pIndex.posCFile::begin）;
	byte?*buffer?=?new?byte[pIndex.len];
	m_pfileData->Read（bufferpIndex.len）;

	packet?*pkt?=?new?packet（）;
	pkt->header?=?（pcap_pkthdr?*）buffer;
	pkt->pkt_data?=?（u_char?*）（buffer+sizeof（pcap_pkthdr））;

	return?pkt;
}


//?=============?self?function?=============
//?返回本機(jī)所有的網(wǎng)卡
pcap_if_t?*??MyWinPcap::GetAdapterList（void?）
{
	/*?Retrieve?the?device?list?from?the?local?machine?*/
	char?errbuf[PCAP_ERRBUF_SIZE];
	pcap_if_t?*?m_alldevs?=?new?pcap_if_t（）;??//????????allocate?memory?to?sava?temp?all-devs??????
????if?（pcap_findalldevs_ex（PCAP_SRC_IF_STRING?NULL?/*?auth?is?not?needed?*/?&m_alldevs?errbuf）?==?-1）?//?if?error
????{
		CString?errmsg;
		USES_CONVERSION;
		errmsg.Format（TEXT（“Error?in?cap_finalldevs_ex（）:?%s\n“）A2W（errbuf））;
		AfxMessageBox（errmsg）;
		
		return?NULL;
	}
	else?if（NULL?==?m_alldevs）
	{
		AfxMessageBox（TEXT（“No?interfaces?found!?Make?sure?WinPcap?is?installed...“））;
		return?NULL;
	}
	else
		return?m_alldevs;
}

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

?????文件?????238080??2009-10-25?23:41??網(wǎng)絡(luò)攻擊與防范實(shí)驗(yàn)報告.doc

?????文件?????223232??2009-10-25?23:43??YGSniffer.exe

?????文件???????2939??2009-10-16?02:00??YGSniffer\YGSniffer\MyWinPcap.cpp

?????文件????????629??2009-10-15?17:35??YGSniffer\YGSniffer\MyWinPcap.h

?????文件???????4058??2009-10-14?13:32??YGSniffer\YGSniffer\ReadMe.txt

?????文件??????67777??2007-11-28?16:21??YGSniffer\YGSniffer\res\YGSniffer.ico

?????文件????????400??2009-10-14?13:32??YGSniffer\YGSniffer\res\YGSniffer.rc2

?????文件???????2881??2009-10-25?21:46??YGSniffer\YGSniffer\resource.h

?????文件????????211??2009-10-14?13:32??YGSniffer\YGSniffer\stdafx.cpp

?????文件???????2175??2009-10-17?12:10??YGSniffer\YGSniffer\stdafx.h

?????文件???????5143??2009-10-24?09:59??YGSniffer\YGSniffer\StructFile.h

?????文件???????1469??2009-10-14?17:22??YGSniffer\YGSniffer\targetver.h

?????文件?????110440??2009-10-25?21:47??YGSniffer\YGSniffer\YGSniffer.aps

?????文件???????2129??2009-10-25?21:44??YGSniffer\YGSniffer\YGSniffer.cpp

?????文件????????526??2009-10-14?13:32??YGSniffer\YGSniffer\YGSniffer.h

?????文件???????9465??2009-10-25?21:47??YGSniffer\YGSniffer\YGSniffer.rc

?????文件???????6031??2009-10-24?16:12??YGSniffer\YGSniffer\YGSniffer.vcproj

?????文件???????1421??2009-10-24?20:24??YGSniffer\YGSniffer\YGSniffer.vcproj.INTERNAL.yangliang.user

?????文件???????1407??2009-10-25?23:43??YGSniffer\YGSniffer\YGSniffer.vcproj.YOUNG.yanggang.user

?????文件??????34882??2009-10-25?21:46??YGSniffer\YGSniffer\YGSnifferDlg.cpp

?????文件???????4502??2009-10-25?21:46??YGSniffer\YGSniffer\YGSnifferDlg.h

?????文件????????893??2009-10-14?13:32??YGSniffer\YGSniffer.sln

????..A..H.????173056??2009-10-25?23:43??YGSniffer\YGSniffer.suo

?????目錄??????????0??2009-10-24?20:44??YGSniffer\YGSniffer\res

?????目錄??????????0??2009-10-25?23:43??YGSniffer\YGSniffer

?????目錄??????????0??2009-10-25?23:45??YGSniffer

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

???????????????893746????????????????????26