ip数据包的捕获与解析代码

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1、//PackCaptureDlg.h:headerfile#defineIPV4_WERSION4#defineIPV6_WERSION6#defineICMP_PACKET1#defineIGMP_PACKET2#defineTCP_PACKET6#defineEGP_PACKET8#defineUDP_packet17#defineOSPF_PACKET89classCPackCaptureDlg:publicCDialog{public://{{AFX_DATA(CFindHostDlg)enum{IDO=IDO_PACKCAPTURE_DIALOG};intm_Count;CSt

2、ringm_Packet;//}}AFX_DATAprotected://{{AFX_MSG(CFindHostDlg)afx_msgvoidOnCapture();//}}AFX_MSGprivate:typedefstructIP_HEAD//IP头部结构{union{unsignedcharVersion;//版本（字节前四位）unsignedcharHeadLen;//头部长度（字节后四位）};unsignedcharServiceType;//服务类型unsignedshortTotalLen;//总长度unsignedshortIdentifier;//标识符union{un

3、signedshortFlags;//标志位（字前三位）unsignedshortFragOffset;otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarc

4、h,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand//片偏移（字后13位）};unsignedcharTimeToLive;//生存周期unsignedcharProtocol;//协议unsignedshortHeadChecksum;//头部校验

5、和unsignedintSourceAddr;//源IP地址unsignedintDestinAddr;//目的IP地址}ip_head;typedefstructICMP_HEAD//ICMP头部结构{unsignedcharType;//类型unsignedcharCode;//代码unsignedshortHeadChecksum;//头部校验和unsignedshortIdentifior;//标识符unsignedshortSequence;//序号}icmp_head;};//PackCaptureDlg.cpp:implementationfile#include"stda

6、fx.h"#include"PackCaptureDlg.h"#include"PackCapture.h"#include"winsock2.h"#include"ws2tcpip.h"#pragmacomment(lib,"ws2_32")#defineIO_RCVALL_WSAIOW(IOC_VENDOR,1)voidCPackCaptureDlg::OnCapture(){WSADATAWSAData;//建立与Socket库绑定if(WSAStartup(MAKEWORD(2,2),&WSAData)!=0){MessageBox("WSAStartup初始化失败!");ret

7、urn;}otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommi