基于socket套接字的IP数据包的抓取.docx

基于socket套接字的IP数据包的抓取SOCKET sock; WSADATA wsData;ofstream ofs(ip.log,ios:app);if (WSAStartup(MAKEWORD(2,2), &wsData) != 0)printf(WSAStartup failed!n);return -1;if ( ( sock = socket(AF_INET, SOCK_RAW, IPPROTO_IP) ) = INVALID_SOCKET )printf(create socket failedn);return -1;BOOL flag = true;if ( setsockopt(sock, IPPROTO_IP, IP_HDRINCL,(char*)&flag, sizeof(flag) = SOCKET_ERROR )printf(setsockopt failed!n);return -1;char hostName128;if ( gethostname(hostName, 100) = SOCKET_ERROR )printf(gethostname failed!n);return -1;hostent* pHostIP;if( ( pHostIP = gethostbyname(hostName) ) = NULL )printf(gethostbyname failedn);return -1;sockaddr_in addr_in;addr_in.sin_addr = *(in_addr*)pHostIP-h_addr_list0;addr_in.sin_family = AF_INET;addr_in.sin_port = htons(6000);if ( bind(sock, (PSOCKADDR)&addr_in, sizeof(addr_in) = SOCKET_ERROR )printf(bind failedn);return -1;#define IO_RCVALL _WSAIOW(IOC_VENDOR,1) DWORD dwBufferLen10;DWORD dwBufferInLen = 1;DWORD dwBytesReturned = 0;char buffer100;if ( WSAIoctl(sock, IO_RCVALL, &dwBufferInLen, sizeof(dwBufferInLen),&dwBufferLen, sizeof(dwBufferLen), &dwBytesReturned, NULL, NULL) = SOCKET_ERROR )printf(ioctlsocket faildn);return -1;printf(Analysis IP Packet !nn);string s;char * p;char buffer1100;while ( true )int size = recv(sock, buffer, sizeof(buffer), 0);IP_HEADER ip = *(IP_HEADER *)buffer; cout - endl; s+=n-n;cout Version: 4) 4,buffer1,10);s+=Version: ;s+=buffer1;s+=n;cout IHL: ( (ip.HdrLen & 0x0f) * 4) endl; s+=IHL:;_itoa(ip.HdrLen & 0x0f)*4,buffer1,10);s+=buffer1;s+=n;cout Type of service: Priority 5) , Service 1 ) & 0x0f) 5,buffer1,10);s+=buffer1; s+=, Service; _itoa(ip.ServiceType 1 ) & 0x0f,buffer1,10);s+=buffer1;s+=n;cout TOtal Length: ip.TotalLen endl;s+=TOtal Length: ; _itoa( ip.TotalLen ,buffer1,10);s+=buffer1;s+=n;cout Identifcation: ip.ID endl;s+=Identifcation: ; _itoa( ip.ID ,buffer1,10);s+=buffer1;s+=n; cout sign: 15) & 0x01) , DF = 14) & 0x01) , Mf = 13) &0x01) 15) & 0x01,buffer1,10);s+=buffer1; s+= , DF = ; _itoa(ip.Flags 14) & 0x01,buffer1,10); s+=buffer1;s+=, Mf = ; _itoa(ip.Flags 13) & 0x01,buffer1,10); s+=buffer1;s+=n;cout Fragment offset: (ip.Fragoff & 0x1fff) endl; s+=Fragment offset: ; _itoa(ip.Fragoff & 0x1fff,buffer1,10); s+=buffer1;s+=n;cout Time to live: (int)ip.TimeToLive endl; s+=Time to live: ; _itoa(int)ip.TimeToLive ,buffer1,10); s+=buffer1;s+=n;cout Protocol: (int)ip.Protocol endl; s+=Protocol: ; _itoa(int)ip.Protocol ,buffer1,10); s+=buffer1;s+=n;cout Header Checksum: ip.HdrChksum endl; s+=Header Checksum: ; _itoa( ip.HdrChksum ,buffer1,10); s+=buffer1;s+=n;cout Source address: inet_ntoa(*(in_addr *)&ip.SrcAddr) endl; s+=Source address: ; s+=inet_ntoa(*(in_addr *)&ip.SrcAddr);