计算机网络的对ip数据包的解析，但是运行窗口只是闪了一下就没了。有加system ("pause");求高人指点。
#include"stdafx.h"#include<iostream>
#include<winsock2.h>
#include<ws2tcpip.h>
#pragma comment(lib,"ws2_32")
#define IO_RCVALL _WSAIOW(IOC_VENDOR,1)
typedef struct IP_HEAD
{
union
{
unsigned char Version;
unsigned char HeadLen;
};
unsigned char ServiceType;
unsigned short TotalLen;
unsigned short Identifier;
union
{
unsigned short Flags;
unsigned short FragOffset;
};
unsigned char TimeToLive;
unsigned char Protocol;
unsigned short HeadChecksum;
unsigned int SourceAddr;
unsigned int DestinAddr;
unsigned char Options;
}ip_head;
void main(int argc,char *argv[])
{
using namespace std;
if(argc!=2)
{
cout<<endl<<"请以下格式输入命令行:PackParse packet_sum"<<endl;
return;
}
WSADATA WSAData;
if(WSAStartup(MAKEWORD(2,2), &WSAData)!=0)
{
cout<<endl<<"WSASTartup初始化失败"<<endl;
return;
}
SOCKET sock=socket(AF_INET,SOCK_RAW,IPPROTO_IP);
if(sock==INVALID_SOCKET)
{
cout<<endl<<"创建Socket失败!"<<endl;
goto exit_clean;
}
BOOL flag=TRUE;
if(setsockopt(sock,IPPROTO_IP,IP_HDRINCL,(char *) &flag,sizeof(flag))==SOCKET_ERROR)
{
cout<<endl<<"setsockopt操作失败:"<<WSAGetLastError()<<endl;
goto exit_clean;
}
char hostName[128];
if(gethostname(hostName,100)==SOCKET_ERROR)
{
cout<<endl<<"gethostname操作失败:"<<WSAGetLastError()<<endl;
goto exit_clean;
}
hostent *pHostIP;
if((pHostIP=gethostbyname(hostName))==NULL)
{
cout<<endl<<"gethostbyname操作失败:"<<WSAGetLastError()<<endl;
goto exit_clean;
}
sockaddr_in host_addr;
host_addr.sin_family=AF_INET;
host_addr.sin_port=htons(6000);
host_addr.sin_addr=*(in_addr *)pHostIP->h_addr_list[0];
if(bind(sock,(PSOCKADDR)&host_addr,sizeof(host_addr))==SOCKET_ERROR)
{
cout<<endl<<"bind操作失败:"<<WSAGetLastError()<<endl;
goto exit_clean;
}
DWORD dwBufferLen[10];
DWORD dwBufferInLen=1;
DWORD dwBytesReturned=0;
if(WSAIoctl(sock , IO_RCVALL ,&dwBufferInLen , sizeof(dwBufferInLen) , &dwBufferLen,sizeof(dwBufferLen),&dwBytesReturned,NULL,NULL)==SOCKET_ERROR)
{
cout<<endl<<"WSAIoctl操作失败:"<<WSAGetLastError()<<endl;
goto exit_clean;
}
cout<<endl<<"开始解析IP包:"<<endl;
char buffer[65535];
int packsum=atoi(argv[1]);
for(int i=0;i<packsum;i++)
{
if(recv(sock,buffer,65535,0)>0)
{
ip_head ip=*(ip_head *)buffer;
cout<<"-----------------------"<<endl;
cout<<"版本:"<<(ip.Version>>4)<<endl;
cout<<"头部长度:"<<((ip.HeadLen &0x0f)*4)<<endl;
cout<<"服务类型:Priority"<<(ip.ServiceType>>5)<<", Service"<<((ip.ServiceType>>1)&0x0f)<<endl;
cout<<"总长度:"<<ip.TotalLen<<endl;
cout<<"标识符:"<<ip.Identifier<<endl;
cout<<"标志位:"<<((ip.Flags>>15)&0x01)<<",DF= "<<((ip.Flags>>14)&0x01)<<",Mf="<<((ip.Flags>>13)&0x01)<<endl;
cout<<"片偏移:"<<(ip.FragOffset&0x1fff)<<endl;
cout<<"生存周期:"<<(int)ip.TimeToLive<<endl;
cout<<"协议:Protocol"<<(int)ip.Protocol<<endl;
cout<<"头部校验和:"<<ip.HeadChecksum<<endl;
cout<<"原地址:"<<inet_ntoa(*(in_addr *)&ip.SourceAddr)<<endl;
cout<<"目的IP地址:"<<inet_ntoa(*(in_addr *)&ip.DestinAddr)<<endl;
}
}
exit_clean:
closesocket(sock);
WSACleanup();
system ("pause");
}
