怎样使用花生壳域名解析出IP.doc

怎样使用花生壳域名解析出IP?-即通常所说的上线2010年10月05日 星期二 下午 01:09本例仅为学习.一个写远控的,连上线都不会.一问三不知,还能算是个网络编程的程序员?上线:就是敲门,1台电脑给另外一台电脑敲门,有人在就进去,没人在就回去.这是最基本的常识.方法:用的是原始套接字icmp获取的,其实就是一个ping程序(包括IP与网站名的那种ping,仅IP的不可以)主程序:ping.h与ping.cpp封装好的.直接在你的dlg.cpp程序中调用.其实算不上什么本事,都是抄来的.因为不是搞专业的远控,仅是学习,所以我也没花时间仔细去学这.cpp顺便介绍下花生壳:从/下载花生壳软件,登录后21就是本机现在的外网IP.就是你账号对应的网站,无论你用的是哪一台机器.(那么端口呢?端口指定的一样的).花生壳其它的就不用管了.你只要做一步即可:打开花生壳软件,登录你的账号即可.难吗?不难,很简单的1步-源代码 包括ping.h与ping.cpp,以及外部调用的函数*dlg.cpp-ping.h-/ Ping.h: interface for the CPing class./#if !defined(AFX_PING_H_DD196130_22F6_48DA_BAFC_B799A0034437_INCLUDED_)#define AFX_PING_H_DD196130_22F6_48DA_BAFC_B799A0034437_INCLUDED_#if _MSC_VER 1000#pragma once#endif / _MSC_VER 1000#include #include #include #include #define IP_RECORD_ROUTE 0x7#define DEF_PACKET_SIZE 32 #define MAX_PACKET 1024 / Max ICMP packet size#define MAX_IP_HDR_SIZE 60 / Max IP header size w/options#define ICMP_ECHO 8#define ICMP_ECHOREPLY 0#define ICMP_MIN 8 / Minimum 8-byte ICMP packet (header)class CMyPingDlg;typedef struct _iphdr unsigned int h_len:4; / Length of the header unsigned int version:4; / Version of IP unsigned char tos; / Type of service unsigned short total_len; / Total length of the packet unsigned short ident; / Unique identifier unsigned short frag_and_flags; / Flags unsigned char ttl; / Time to live unsigned char proto; / Protocol (TCP, UDP etc) unsigned short checksum; / IP checksum unsigned int sourceIP; unsigned int destIP; IpHeader;typedef struct _icmphdr BYTE i_type; BYTE i_code; / Type sub code USHORT i_cksum; USHORT i_id; USHORT i_seq; / This is not the standard header, but we reserve space for time ULONG timestamp; IcmpHeader;/ IP option header - use with socket option IP_OPTIONS/typedef struct _ipoptionhdr unsigned char code; / Option type unsigned char len; / Length of option hdr unsigned char ptr; / Offset into options unsigned long addr9; / List of IP addrs IpOptionHeader;class CPing public:void SetConfigure(char * host,BOOL recordrout=FALSE,int size=DEF_PACKET_SIZE);void DecodeIPOptions(char *buf, int bytes);void Cleanup();void Ping(int timeout =1000);SOCKET m_hSocket;IpOptionHeader m_ipopt;SOCKADDR_IN m_addrDest;SOCKADDR_IN m_addrFrom;char *icmp_data; char *recvbuf;USHORT seq_no ;char *lpdest;int datasize;BOOL m_bRecordRout;CMyPingDlg * m_dlg;CPing(CMyPingDlg *dlg);virtual CPing();private:void DecodeICMPHeader(char *buf, int bytes, SOCKADDR_IN* from);USHORT checksum(USHORT *buffer, int size);void FillICMPData(char *icmp_data, int datasize);#endif / !defined(AFX_PING_H_DD196130_22F6_48DA_BAFC_B799A0034437_INCLUDED_)-ping.cpp-/ Ping.cpp: implementation of the CPing class./#include stdafx.h#include MyPing.h#include Ping.h#include MyPingDlg.h#ifdef _DEBUG#undef THIS_FILEstatic char THIS_FILE=_FILE_;#define new DEBUG_NEW#endifCString DNS_IP=;/ Construction/Destruction/CPing:CPing(CMyPingDlg * dlg)m_dlg=dlg;icmp_data = NULL;seq_no = 0;recvbuf = NULL;m_bRecordRout = FALSE;lpdest = NULL;datasize = DEF_PACKET_SIZE;WSADATA wsaData;if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) AfxMessageBox(Sorry, you cannot load socket dll!); return ;m_hSocket = INVALID_SOCKET;CPing:CPing()if(lpdest) delete lpdest;void CPing:Ping(int timeout) m_hSocket = WSASocket (AF_INET, SOCK_RAW, IPPROTO_ICMP, NULL, 0, WSA_FLAG_OVERLAPPED); if (m_hSocket = INVALID_SOCKET) AfxMessageBox(socket 创建失败!); return ; if (m_bRecordRout) / Setup the IP option header to go out on every ICMP packet / ZeroMemory(&m_ipopt, sizeof(m_ipopt); m_ipopt.code = IP_RECORD_ROUTE; / Record route option m_ipopt.ptr = 4; / Point to the first addr offset m_ipopt.len = 39; / Length of option header int ret = setsockopt(m_hSocket, IPPROTO_IP, IP_OPTIONS, (char *)&m_ipopt, sizeof(m_ipopt); if (ret = SOCKET_ERROR) AfxMessageBox(设置socket协议选项错误!); / Set the send/recv timeout values / int bread = setsockopt(m_hSocket, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout, sizeof(timeout); if(bread = SOCKET_ERROR) AfxMessageBox(设置socket接收超时选项错误!); return ; timeout = 1000; bread = setsockopt(m_hSocket, SOL_SOCKET, SO_SNDTIMEO, (char*)&timeout, sizeof(timeout); if (bread = SOCKET_ERROR) AfxMessageBox(设置socket发送超时选项错误!); return ; memset(&m_addrDest, 0, sizeof(m_addrDest); / / Resolve the endpoints name if necessary / m_addrDest.sin_family = AF_INET; if (m_addrDest.sin_addr.s_addr = inet_addr(lpdest) = INADDR_NONE) struct hostent *hp = NULL; if (hp = gethostbyname(lpdest) != NULL) memcpy(&(m_addrDest.sin_addr), hp-h_addr, hp-h_length); m_addrDest.sin_family = hp-h_addrtype;/ printf(m_addrDest.sin_addr = %sn, inet_ntoa(m_addrDest.sin_addr); else / printf(gethostbyname() failed: %dn, / WSAGetLastError(); AfxMessageBox(输入的主机不存在!); return ; / / Create the ICMP packet / datasize += sizeof(IcmpHeader); icmp_data =(char*) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, MAX_PACKET); recvbuf =(char*) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, MAX_PACKET); if (!icmp_data) AfxMessageBox(堆分配错误!); return ; memset(icmp_data,0,MAX_PACKET); FillICMPData(icmp_data,datasize); / / Start sending/receiving ICMP packets /static int nCount = 0;int nCount=0; while(1) int bwrote; if (nCount+ = 4) break; (IcmpHeader*)icmp_data)-i_cksum = 0; (IcmpHeader*)icmp_data)-timestamp = GetTickCount(); (IcmpHeader*)icmp_data)-i_seq = seq_no+; (IcmpHeader*)icmp_data)-i_cksum = checksum(USHORT*)icmp_data, datasize); bwrote = sendto(m_hSocket, icmp_data, datasize, 0, (struct sockaddr*)&m_addrDest, sizeof(m_addrDest); if (bwrote = SOCKET_ERROR) if (WSAGetLastError() = WSAETIMEDOUT) m_dlg-m_result+=Timed out ! rn; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); continue; AfxMessageBox(发送数据函数调用错误!); return ; if (bwrote m_result+=temp; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); int fromlen = sizeof(m_addrFrom); bread = recvfrom(m_hSocket, recvbuf, MAX_PACKET, 0, (struct sockaddr*)&m_addrFrom, &fromlen); if (bread = SOCKET_ERROR) if (WSAGetLastError() = WSAETIMEDOUT) m_dlg-m_result+=Timed out !rn; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); continue; AfxMessageBox(接收数据函数调用错误!); return ; DecodeICMPHeader(recvbuf, bread, &m_addrFrom); if(DNS_IP!=)/不等于空时表示ping通有IP了 AfxMessageBox(解析出域名IP:+DNS_IP);void CPing:Cleanup()if (m_hSocket != INVALID_SOCKET) closesocket(m_hSocket); HeapFree(GetProcessHeap(), 0, recvbuf); HeapFree(GetProcessHeap(), 0, icmp_data);/ WSACleanup(); return ;void CPing:FillICMPData(char *icmp_data, int datasize) IcmpHeader *icmp_hdr = NULL; char *datapart = NULL; icmp_hdr = (IcmpHeader*)icmp_data; icmp_hdr-i_type = ICMP_ECHO; / Request an ICMP echo icmp_hdr-i_code = 0; icmp_hdr-i_id = (USHORT)GetCurrentProcessId(); icmp_hdr-i_cksum = 0; icmp_hdr-i_seq = 0; datapart = icmp_data + sizeof(IcmpHeader);void CPing:DecodeIPOptions(char *buf, int bytes) IpOptionHeader *ipopt = NULL; IN_ADDR inaddr; int i; HOSTENT *host = NULL; ipopt = (IpOptionHeader *)(buf + 20);m_dlg-m_result+=Ping 结果: rn; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); for(i = 0; i ptr / 4) - 1; i+) inaddr.S_un.S_addr = ipopt-addri; if (i != 0) / m_dlg-m_result+= ; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); host = gethostbyaddr(char *)&inaddr.S_un.S_addr, sizeof(inaddr.S_un.S_addr), AF_INET); CString temp; if (host) temp.Format(%-15s) %s rn, inet_ntoa(inaddr), host-h_name); m_dlg-m_result+=temp; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); else temp.Format(%-15s)rn, inet_ntoa(inaddr); m_dlg-m_result+=temp; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); return;USHORT CPing:checksum(USHORT *buffer, int size) unsigned long cksum=0; while (size 1) cksum += *buffer+; size -= sizeof(USHORT); if (size) cksum += *(UCHAR*)buffer; cksum = (cksum 16) + (cksum & 0xffff); cksum += (cksum 16); return (USHORT)(cksum);void CPing:SetConfigure(char * host,BOOL recordrout,int size)if(lpdest) delete lpdest; lpdest=NULL; m_bRecordRout = recordrout; datasize = size; lpdest = new char strlen(host)+1;strcpy(lpdest,host);void CPing:DecodeICMPHeader(char *buf, int bytes, SOCKADDR_IN *from) IpHeader *iphdr = NULL; IcmpHeader *icmphdr = NULL; unsigned short iphdrlen; DWORD tick; static int icmpcount = 0; iphdr = (IpHeader *)buf;/ Number of 32-bit words * 4 = bytes iphdrlen = iphdr-h_len * 4; tick = GetTickCount(); if (iphdrlen = MAX_IP_HDR_SIZE) & (!icmpcount) DecodeIPOptions(buf, bytes);CString temp; if (bytes sin_addr); m_dlg-m_result+=temp; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); icmphdr = (IcmpHeader*)(buf + iphdrlen); if (icmphdr-i_type != ICMP_ECHOREPLY) temp.Format(nonecho type %d recvd rn, icmphdr-i_type); m_dlg-m_result+=temp; m_dlg-SetDlgItemText(IDC_EDIT2,m_dlg-m_result); return; / Make sure this is an ICMP reply to something we sent! / if (icmphdr-i_id != (USHORT)GetCurrentProcessId() temp.Format(someone elses pa