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2024年7月3日发(作者:)
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与封装好的.直接在你的程序中调用.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
116.209.15.221就是本机现在的外网就是你账号对应
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,以及外部调用的
函数***-----------------------
-----------------------------------------ping.h----------------------
----------------------
// Ping.h: interface for the CPing class.
//
/////////////////////////////////////////////////////////////////////
/
#if !defined(AFX_PING_H__DD196130_22F6_48DA_BAFC_B799A0034437__INCLUD
ED_)
#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 addr[9]; // 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__INCLUDE
D_)
-------------------------------------------------------------
------------------------
// : implementation of the CPing class.
//
/////////////////////////////////////////////////////////////////////
/
#include "stdafx.h"
#include "MyPing.h"
#include "Ping.h"
#include "MyPingDlg.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
CString 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_ = IP_RECORD_ROUTE; // Record route option
m_ = 4; // Point to the first addr offset
m_ = 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 endpoint's name if necessary
//
m__family = AF_INET;
if ((m__addr.s_addr = inet_addr(lpdest)) ==
INADDR_NONE)
{
struct hostent *hp = NULL;
if ((hp = gethostbyname(lpdest)) != NULL)
{
memcpy(&(m__addr), hp->h_addr, hp->h_length);
m__family = hp->h_addrtype;
// printf("m__addr = %sn",
inet_ntoa(m__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 < datasize)
{
CString temp;
("Wrote %d bytes rn", bwrote);
m_dlg->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 < (ipopt->ptr / 4) - 1; i++)
{
inaddr.S_un.S_addr = ipopt->addr[i];
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)
{
("(%-15s) %s rn", inet_ntoa(inaddr), host->h_name);
m_dlg->m_result+=temp;
m_dlg->SetDlgItemText(IDC_EDIT2,m_dlg->m_result);
}
else
{
("(%-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 < iphdrlen + ICMP_MIN)
{
("Too few bytes from %s rn",inet_ntoa(from->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)
{
("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())
{
("someone else's packet! rn");
m_dlg->m_result+=temp;
m_dlg->SetDlgItemText(IDC_EDIT2,m_dlg->m_result);
return ;
}
DNS_IP=inet_ntoa(from->sin_addr);
("%d bytes from %s: rn", bytes, inet_ntoa(from->sin_addr));
m_dlg->m_result+=temp;
(" icmp_seq = %d. rn", icmphdr->i_seq);
m_dlg->m_result+=temp;
(" time: %d ms rn", tick - icmphdr->timestamp);
m_dlg->m_result+=temp;
m_dlg->SetDlgItemText(IDC_EDIT2,m_dlg->m_result);
icmpcount++;
return;
}
---------------------外部调用的函数***-----------------------
extern CString DNS_IP;
void CMyPingDlg::OnPing()
{
// TODO: Add your control notification handler code here
CButton* checkbox=(CButton*)GetDlgItem(IDC_CHECK_ROUTE);
int state=checkbox->GetCheck();
char host[100];
GetDlgItemText(IDC_HOST,host,100);
m_figure(host,state);
m_();
m_result+="ping 完成!rn--------------------rn";
SetDlgItemText(IDC_EDIT2,m_result);
UpdateData(TRUE);
m_dnsip=DNS_IP;
UpdateData(FALSE);
m_p();
}
附注1:源程序已上传至邮箱,即取即用.
本例有个特点:封装性特别好.ping.h与直接包含进去,然后把
***中按钮响应的代码添加进去,就可以了
附注2:在次申明:本例仅为学习.来源ping程序的扩展
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