Asp.net編寫的PING工具 (轉)
是一個用來檢測連線速度的工具,它會在本機和給出的主機名之間建立一個SOCKET 連線並向其傳送一個
ICMP格式的資料包,然後遠端主機作出響應,發回一個資料包,透過計算傳送到接收資料包的時間間隔,我們可以確
定連線的速度。
使用方法 ping
[/r] 可選屬性,決定是否連續的 ping 遠端主機。
下面是程式碼:
///ping.cs
namespace SaurabhPing
{
using System;
using System;
using System.Net.Sockets;
///
/// 主要的類:ping
///
class Ping
{
明幾個常量
const int SOCKET_ERROR = -1;
const int ICMP_ECHO = 8;
///
/// 這裡取得Hostname引數
///
public static void Main(string[] argv)
{
if(argv.Length==0)
{
user did not enter any Parameter infohim
Console.WriteLine("Usage:Ping
Console.WriteLine("
Console.WriteLine("/r Ping the host continuously") ;
}
else if(argv.Length==1)
{
the hostname provd by the user
the method "Pin" and pass the HostName as a parameter
PingHost(argv[0]) ;
}
else if(argv.Length==2)
{
user provided the hostname and the switch
if(argv[1]=="/r")
{
">file://loop the ping program
while(true)
{
the method "PingHost" and pass the HostName as a parameter
PingHost(argv[0]) ;
}
}
else
{
the user provided some other switch
PingHost(argv[0]) ;
}
}
else
{
error occurred
Console.WriteLine("Error in Arguments") ;
}
}
///
/// 主要的方法,用來取得IP,
/// 並計算響應時間
///
public static void PingHost(string host)
{
the IPHostEntry
IPHostEntry serverHE, fromHE;
int nBytes = 0;
int dwStart = 0, dwStop = 0;
a Socket of the Type ICMP
Socket socket =
new Socket(Addresamily.AfINet, SocketType.SockRaw, ProtocolType.ProtICMP);
// Get the server endpoint
try
{
serverHE = .GetHostByName(host);
}
catch(Exception)
{
Console.WriteLine("Host not found"); // fail
return ;
}
// Convert the server IP_EndPoint to an EndPoint
IPEndPoint ipepServer = new IPEndPoint(serverHE.Addreist[0], 0);
EndPoint epServer = (ipepServer);
// Set the receiving endpoint to the client machine
fromHE = DNS.GetHostByName(DNS.GetHostName());
IPEndPoint ipEndPointFrom = new IPEndPoint(fromHE.AddressList[0], 0);
EndPoint EndPointFrom = (ipEndPointFrom);
int PacketSize = 0;
IcmpPacket packet = new IcmpPacket();
// Construct the packet to send
packet.Type = ICMP_ECHO;
packet.SubCode = 0;
packet.CheckSum = UInt16.Parse("0");
packet.Identifier = UInt16.Parse("45");
packet.SequenceNumber = UInt16.Parse("0");
int PingData = 32; // sizeof(IcmpPacket) - 8;
packet.Data = new Byte[PingData];
the Packet.Data
for (int i = 0; i < PingData; i++)
{
packet.Data[i] = (byte)'#';
}
to hold the total Packet size
PacketSize = PingData + 8;
Byte [] icmp_pkt_buffer = new Byte[ PacketSize ];
Int32 Index = 0;
a Method Serialize which counts
total number of Bytes in the Packet
Index = Serialize(
packet,
icmp_pkt_buffer,
PacketSize,
PingData );
in Packet Size
if( Index == -1 )
{
Console.WriteLine("Error in Making Packet");
return ;
}
// now get this critter into a UInt16 array
the Half size of the Packet
Double double_length = Convert.ToDouble(Index);
Double dtemp = Math.Ceil( double_length / 2);
int cksum_buffer_length = Convert.ToInt32(dtemp);
a Byte Array
UInt16 [] cksum_buffer = new UInt16[cksum_buffer_length];
to initialize the Uint16 array
int icmp_header_buffer_index = 0;
for( int i = 0; i < cksum_buffer_length; i++ ) {
cksum_buffer[i] =
BitConverter.ToUInt16(icmp_pkt_buffer,icmp_header_buffer_index);
icmp_header_buffer_index += 2;
}
a method which will return a checksum
UInt16 u_cksum = checksum(cksum_buffer, cksum_buffer_length);
the checksum to the Packet
packet.CheckSum = u_cksum;
// Now that we have the checksum, serialize the packet again
Byte [] senuf = new Byte[ PacketSize ];
check the packet size
Index = Serialize(
packet,
sendbuf,
PacketSize,
PingData );
there is a error report it
if( Index == -1 )
{
Console.WriteLine("Error in Making Packet");
return ;
}
dwStart = System.Environment.TickCount; // Start timing
the Pack over the socket
if ((nBytes = socket.SendTo(sendbuf, PacketSize, 0, epServer)) == SOCKET_ERROR)
{
Console.WriteLine("Socket Error cannot Send Packet");
}
// Initialize the buffers. The receive buffer is the size of the
// ICMP header plus the header (20 bytes)
Byte [] ReceiveBuffer = new Byte[256];
nBytes = 0;
the bytes
bool recd =false ;
int timeout=0 ;
for checking the time of the server responding
while(!recd)
{
nBytes = socket.ReceiveFrom(ReceiveBuffer, 256, 0, ref EndPointFrom);
if (nBytes == SOCKET_ERROR)
{
Console.WriteLine("Host not Responding") ;
recd=true ;
break;
}
else if(nBytes>0)
{
dwStop = System.Environment.TickCount - dwStart; // stop timing
Console.WriteLine("Reply from "+epServer.ToString()+" in "
+dwStop+"MS :Bytes Received"+nBytes);
recd=true;
break;
}
timeout=System.Environment.TickCount - dwStart;
if(timeout>1000)
{
Console.WriteLine("Time Out") ;
recd=true;
}
}
the socket
socket.Close();
}
///
/// This method get the Packet and calculates the total size
/// of the Pack by converting it to byte array
///
public static Int32 Serialize(IcmpPacket packet, Byte[] Buffer,
Int32 PacketSize, Int32 PingData )
{
Int32 cbReturn = 0;
// serialize the struct into the array
int Index=0;
Byte [] b_type = new Byte[1];
b_type[0] = (packet.Type);
Byte [] b_code = new Byte[1];
b_code[0] = (packet.SubCode);
Byte [] b_cksum = BitConverter.GetBytes(packet.CheckSum);
Byte [] b_id = BitConverter.GetBytes(packet.Identifier);
Byte [] b_seq = BitConverter.GetBytes(packet.SequenceNumber);
// Console.WriteLine("Serialize type ");
Array.Copy( b_type, 0, Buffer, Index, b_type.Length );
Index += b_type.Length;
// Console.WriteLine("Serialize code ");
Array.Copy( b_code, 0, Buffer, Index, b_code.Length );
Index += b_code.Length;
// Console.WriteLine("Serialize cksum ");
Array.Copy( b_cksum, 0, Buffer, Index, b_cksum.Length );
Index += b_cksum.Length;
// Console.WriteLine("Serialize id ");
Array.Copy( b_id, 0, Buffer, Index, b_id.Length );
Index += b_id.Length;
Array.Copy( b_seq, 0, Buffer, Index, b_seq.Length );
Index += b_seq.Length;
// copy the data
Array.Copy( packet.Data, 0, Buffer, Index, PingData );
Index += PingData;
if( Index != PacketSize/* sizeof(IcmpPacket) */) {
cbReturn = -1;
return cbReturn;
}
cbReturn = Index;
return cbReturn;
}
///
/// This Method has the algorithm to make a checksum
///
public static UInt16 checksum( UInt16[] buffer, int size )
{
Int32 cksum = 0;
int counter;
counter = 0;
while ( size > 0 ) {
UInt16 val = buffer[counter];
cksum += Convert.ToInt32( buffer[counter] );
counter += 1;
size -= 1;
}
cksum = (cksum >> 16) + (cksum & 0xffff);
cksum += (cksum >> 16);
return (UInt16)(~cksum);
}
} // class ping
///
/// Class that holds the Pack information
///
public class IcmpPacket
{
public Byte Type; // type of message
public Byte SubCode; // type of sub code
public UInt16 CheckSum; // ones complement checksum of struct
public UInt16 Identifier; // identifier
public UInt16 SequenceNumber; // sequence number
public Byte [] Data;
} // class IcmpPacket
}
來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/10752043/viewspace-989574/,如需轉載,請註明出處,否則將追究法律責任。
相關文章
- 用ASP.Net編寫留言本 (轉)ASP.NET
- Windows Ping伺服器列表,把Ping的通寫入OK檔案,Ping不通的寫入NO檔案Windows伺服器
- workist - node編寫的小巧的效率工具
- java工具類編寫思考Java
- php 的字元編碼轉換工具 (轉)PHP字元
- 編寫易讀的程式碼 (轉)
- 編寫高效的MySQL應用(轉)MySql
- ASP.Net寫的瀏覽器間諜 (轉)ASP.NET瀏覽器
- 批量ping工具fping
- 如何在ASP.NET Core中編寫高效的控制器ASP.NET
- ping原始碼(轉)原始碼
- (轉載)編寫高效的jQuery程式碼jQuery
- JS編寫的俄羅斯方塊 (轉)JS
- 編寫一個介面壓測工具
- asp.net教程-C#中使用XML——編寫XMLASP.NETC#XML
- 【安卓筆記】硬碟快取工具類的編寫安卓筆記硬碟快取
- solaris Application Packaging 編寫的小工具APP
- 用Delphi編寫DelTree程式 (轉)
- 用Java編寫ASP元件 (轉)Java元件
- 用Excel編寫小遊戲 (轉)Excel遊戲
- MFC對COM介面編寫的支援分析 (轉)
- 拖拽編寫SVG圖形化工具(二)SVG
- ASP.NET程式設計中的9條程式碼編寫規範ASP.NET程式設計
- 編寫一個分析程式碼依賴的工具(一)
- 請問大家使用什麼樣的工具編寫javaJava
- java工具類之編碼轉換工具類Java
- 自寫Json轉換工具JSON
- [轉]andriod的apk檔案相關的編譯反編譯工具APK編譯
- 用ASP.Net寫一個傳送ICQ資訊的程式 (轉)ASP.NET
- (轉)Qt之qss檔案編寫QT
- 編寫網路尋呼機 (轉)
- 用VC++編寫CGI程式 (轉)C++
- 用VB編寫抽獎程式 (轉)
- 利用DELPHI編寫WINDOWS外殼 (轉)Windows
- 動畫程式編寫——DirectDraw之旅(3)(轉)動畫
- Linux bootloader 編寫方法(轉)Linuxboot
- JAVA程式碼編寫的30條建議(轉)Java
- 編寫Linux實用程式的藝術(轉)Linux