<> Asp.net编写的PING工具 / y) g* |9 I" R" G" @: g " Z4 G, I2 c% f- g ' ~5 I# E: q* l% g
PING 是一个用来检测网络连接速度的工具,它会在本机和给出的远程主机名之间建立一个SOCKET 连接并向其发送一个ICMP协议格式的数据包,然后远程主机作出响应,发回一个数据包,通过计算发送到接收数据包的时间间隔,我们可以确定连接的速度。 * ~) {, V( [8 u
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此程序可以使用于 asp+asp.net 虚拟主机,时代互联(<a href="http://www.now.net.cn" target="_blank" >www.now.net.cn</A>)的虚拟主机可以支持 。虚拟主机的其他的配置问题,可以见:<a href="http://www.now.net.cn/host" target="_blank" >www.now.net.cn/host</A> * D& a' B4 P! `! u9 ?/ a 主机+域名+邮箱 的优惠套餐,可以见 : <a href="http://www.now.net.cn/special/host.net" target="_blank" >http://www.now.net.cn/special/host.net</A> 8 a- h, c7 ? n2 C4 L% b 5 A1 B( Q5 m/ y: p, G c
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8 u1 e3 d+ w& g. c 使用方法 ping <hostname> [/r] : b! J7 B5 I. ?( m3 n' p
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<hostname> 主机名 , Z/ a: C. C5 b8 d. ^+ i/ M
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[/r] 可选属性,决定是否连续的 ping 远程主机。 $ K: v" D. w! C1 f' ]" u
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下面是代码: : ^' b( R. K3 F
+ ], s8 f+ {0 A( c ///ping.cs , ?; K" @( Q8 R/ d/ | 9 f5 |- t: s* m! ]4 W+ L. e( ~6 h" g$ \ namespace SaurabhPing ( O: q: ? ?. S( \, w+ p+ n u; E 2 g+ {9 \+ e" u& Q
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using System; 4 y9 v H3 q- M, l
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using System.Net; $ m U; o5 b& d+ E. q" z
& }1 z. N7 S+ \1 z1 N c' x+ o using System.Net.Sockets; % w% o- Q( S0 i$ G9 p 6 O# F* @; H' m% H" C) l% m- F /// <summary> 8 |# I' M" s% s/ W
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/// 主要的类:ping 2 p, k4 D0 l3 B5 O$ U* Y 1 h3 ]* o3 I" }) { /// </summary> ( g9 o( h5 v$ P# n; B2 P- a6 A
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class Ping 8 S) h7 _. o1 f# I+ ~ 7 s3 q( ] [# `
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$ g5 C6 R* \4 `2 H8 G$ L9 j //声明几个常量 ) t. n+ S# j: ] ' e3 G0 m8 l5 {6 L% M
const int SOCKET_ERROR = -1; 5 D' a* ~" l4 ?3 D # Z# m2 T8 ^& ]5 _5 {6 M
const int ICMP_ECHO = 8; & M3 J9 u4 O8 B" I8 ~2 Z
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/// <summary> 7 ^ z: Y1 z% D; `; J0 [5 z& E
) v9 w9 E( [2 g1 \4 R4 a6 w /// 这里取得Hostname参数 4 f9 \* O6 u) t
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/// </summary> 9 k% k+ J5 F0 _* d ( a, ~9 H/ x5 B9 [5 C
public static void Main(string[] argv) 0 D+ h! M9 i# ~7 |
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if(argv.Length==0) 3 }5 V9 P9 X; N) J0 r
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//If user did not enter any Parameter inform him 2 i' _3 z7 y7 m% H 2 r& q3 q+ H* w/ f' \; }5 R7 U Console.WriteLine("Usageing <hostname> /r") ; 0 s0 v t7 S5 ?# G8 }; ?# L
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Console.WriteLine("<hostname> The name of the Host who you want to ping"); ! q9 b7 ]* w7 q, v: S, g
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Console.WriteLine("/r Ping the host continuously") ; 8 f% \$ ~: K2 f( [3 c& S
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else if(argv.Length==1) ' F( {0 G1 D# s6 u& z
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//Just the hostname provided by the user 1 V& y: `4 G* p2 r) j6 R
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//call the method "ingHost" and pass the HostName as a parameter 7 C) m9 c( Y* `" L + N- g5 U2 D9 p1 F
PingHost(argv[0]) ; * H' O$ P1 o1 l3 m5 k 8 \$ y1 m) ? S0 t/ C } / N M" }! C P " L; p7 \% v# T
else if(argv.Length==2) ! E% ~9 O# _) A. E
# `- W3 |7 N# L% A9 O { $ ?4 r; Y. p8 s! K: z: \; J / q0 {$ R- C& h* y5 L- y8 T //the user provided the hostname and the switch ! j% _2 h% |+ X ( ?) ^/ l. e, J N/ W8 l
if(argv[1]=="/r") ( _3 E) J) P4 k2 Q" r) k( @: h6 M, _
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//loop the ping program , Z. X4 U4 r( M7 \2 t- ~/ q
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//call the method "ingHost" and pass the HostName as a parameter , Q' ]: H2 _+ m* x 8 k7 {+ u6 s9 J" k+ |7 q PingHost(argv[0]) ; 7 z3 e+ p5 r+ X: R0 @4 ]! | # K# `$ ]# P# l" B' t2 A
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//if the user provided some other switch , G/ X( ` Y X5 |7 V& h/ V+ W# Y
5 a. O6 y" K6 C. V PingHost(argv[0]) ; ' M! v- `9 ?% } c% f8 y
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else % |. F# f! ?( @ 9 @, g, b4 P" T
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% s G7 ]7 }: o //Some error occurred ) T/ P5 y) L& M5 a/ M U3 u & l k4 W; U( s1 F: j; K Console.WriteLine("Error in Arguments") ; 8 {2 H. w" |4 A, I8 ~
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/// <summary> & h8 a! G ^1 a9 r' }; m 1 d5 Z. E' Y+ U, r
/// 主要的方法,用来取得IP, 8 F" `% M p/ H" W 1 }0 A& D5 S$ k. E! L /// 并计算响应时间 ! q6 E: _ e- t" |% @ 4 D6 N4 E9 Y& {7 h; Z7 V; ?* p
/// </summary> / J* p0 [9 `0 N5 ?
! L1 X- F8 g! ^ q1 H3 Z public static void PingHost(string host) 7 H8 }- W8 @, p! A6 N1 V: a & U; C- j( U1 f
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* _: D4 w# c9 t //Declare the IPHostEntry 9 V7 M- e S7 P
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IPHostEntry serverHE, fromHE; / g7 c; `( x$ O3 r. ?( C9 u
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int nBytes = 0; 3 ?2 p! o; L# Q4 Q ]
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int dwStart = 0, dwStop = 0; 8 M% n( t7 y: l6 o; P ( r4 K+ c- k5 [2 e) b' y. \2 O$ z //Initilize a Socket of the Type ICMP 2 M: Y0 U; E% t% _/ e0 C! C( ?4 y3 T' ^ 1 @4 K6 h- O7 r: F+ R( ` Socket socket = ; C( _* y" ]" {& ?* _) X! R$ K; }4 ] . Z! f; B# _3 ^- [; q ?* K new Socket(AddressFamily.AfINet, SocketType.SockRaw, ProtocolType.ProtICMP); ! k% \% |/ v; ^% u; B- }1 d & L, ~$ N4 v* O: z4 r2 D 3 x& Y9 n/ @# m4 S$ _ _0 [ // Get the server endpoint / P' c2 n8 \- m/ G/ _# R2 ~- g : G+ H0 r# T+ \0 L% P N# J
try / k1 b q8 t; b' y; L- N % s0 _1 p1 v, d& P
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serverHE = DNS.GetHostByName(host); ( u% ]) V8 i L, V: A' ] 8 i. x) x* Q/ X% L7 y+ ]
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catch(Exception) " o7 z8 M- D% X d6 u 8 c3 z/ x) Y' D9 Q& K5 r6 O" z
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Console.WriteLine("Host not found"); // fail % l4 N6 M# z7 d: x2 h3 {1 z5 r! n
E/ u' |4 p3 M5 [& Y/ | return ; ! {4 ^5 H; Z* C7 D% j# J ) _/ `8 Q9 R" v, M2 { } # E: G5 E( ^; G1 ^! \& w' [
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// Convert the server IP_EndPoint to an EndPoint % r( e: O' E7 E! x/ N& v$ t3 I( n' | $ b$ Y3 X! J2 `* [! A0 v
IPEndPoint ipepServer = new IPEndPoint(serverHE.AddressList[0], 0); - `( K2 E; x" o1 \# P. {
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EndPoint epServer = (ipepServer); $ M8 }# Q" C1 v3 D [. q# O9 {9 j2 T 3 O/ B9 j7 p+ \$ T$ t; ~6 V5 b
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// Set the receiving endpoint to the client machine 6 B' M- j; c, j9 m e 8 g; h4 }- k* S/ | fromHE = DNS.GetHostByName(DNS.GetHostName()); % n* K6 b; E0 K1 c, w& j* l
# s: l/ h0 l$ m' x9 v6 i IPEndPoint ipEndPointFrom = new IPEndPoint(fromHE.AddressList[0], 0); 7 p' d. F# c& d8 M0 j* F0 ~ 7 m% A: \% F$ d/ A EndPoint EndPointFrom = (ipEndPointFrom); ) m8 u) C# Q# S" L3 K* W- Q
$ ]. I- D% M/ g' U9 w , b1 n% r8 u& h8 ~1 H int PacketSize = 0; 4 ?2 s w7 i' i
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IcmpPacket packet = new IcmpPacket(); + ^# ?6 H% N( ?# N, ]& K( N1 H 2 U$ L) R4 B$ t9 Y0 v$ L, x // Construct the packet to send 8 [# V: g# @2 N. k* R( F # T( V7 e* ?3 j! J packet.Type = ICMP_ECHO; //8 : X+ E5 \* f+ Y, A' G5 l
+ i( S2 E- o6 ^+ j* d% j+ m: k packet.SubCode = 0; 2 i8 O; y9 ]4 J( R3 f( g1 v 0 D) i: N6 `" o7 Q6 h
packet.CheckSum = UInt16.Parse("0"); % g* ? v( N) I6 N2 R
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packet.Identifier = UInt16.Parse("45"); ; F! Y5 A- z) j- k; G8 n* M+ L: u! P t $ W; \1 l6 ^- D packet.SequenceNumber = UInt16.Parse("0"); + u3 U0 v) T$ m1 w( o
' F2 X0 c% N7 e( X g% Q packet.Data = new Byte[PingData]; 7 }$ ^$ q' {" R& W9 k : @% E! ]4 T" q. ^9 u6 w
//Initilize the Packet.Data 9 l0 N/ H) L1 N, Y4 T8 q , F ~" J+ H% [ for (int i = 0; i < PingData; i++) ! L% a9 r8 h& |) ^# U: L
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packet.Data = (byte)'#'; % d2 U% F j0 i+ I , }$ M6 z% u2 K) \+ R+ w8 D" q
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//Variable to hold the total Packet size * |" { |; X5 O- O! i/ N . }6 _# }5 u' F7 S- L; D2 n
PacketSize = PingData + 8; ( F O8 i1 `) S' w
! D( q3 B1 S: i/ a: w Byte [] icmp_pkt_buffer = new Byte[ PacketSize ]; # u5 q4 E$ W2 N4 d' d, G6 ] 3 u0 \& h9 ^! n: u/ U$ ~* K Int32 Index = 0; 2 e. ?4 o0 G. D4 k; [ r) b9 a" P8 g5 ?5 L* e
//Call a Method Serialize which counts ' _ H8 _; ^0 K7 C& k& t/ ^. O ) C% y8 q, j! M6 c //The total number of Bytes in the Packet 8 \4 U+ H7 G+ O4 f 6 |% x8 R+ z" d; B( d r Index = Serialize( : T0 o2 R [1 d8 V3 A
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icmp_pkt_buffer, - V* V. C' R) @4 u; D
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PingData ); - X$ s- R5 x9 a7 A$ {
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if( Index == -1 ) 7 L ]* w% J: R {2 K+ I
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& F6 ~# K& [1 J5 L# V, C- l Console.WriteLine("Error in Making Packet"); & G7 u- S( `! g( N% S
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return ; 7 ^9 d3 X9 h7 F/ Y/ r% N* s1 V
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# ]3 l- N' B- R$ S4 @ // now get this critter into a UInt16 array $ k: K) f7 r, Y/ M" v8 w 3 S! u5 ~6 m/ d6 c% J3 g ( u5 |* h; }! t% O9 s2 N //Get the Half size of the Packet 5 @1 N. O" g( M) K% L2 m. I : I2 Q% T; I+ N9 t; }
Double double_length = Convert.ToDouble(Index); ! B3 p* w& p6 ?7 B ( m" M1 T/ F [: d. m7 m5 r2 v1 @6 U
Double dtemp = Math.Ceil( double_length / 2); * ^+ G. E! Z, r+ n
z. u ~/ E) O* M int cksum_buffer_length = Convert.ToInt32(dtemp); * Z7 o$ W7 D$ _
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//Create a Byte Array 7 S( D4 n5 ^: ~) v5 n; F
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//Code to initialize the Uint16 array 7 \: P8 Y! C4 O# X2 n) V5 J
' S! H9 w9 r6 Z) Q. D. n int icmp_header_buffer_index = 0; # R1 {+ J- M' e" D5 o0 W
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for( int i = 0; i < cksum_buffer_length; i++ ) { + s) T- ~; e! X. A" j 2 ^9 y8 h7 u0 t! v1 J cksum_buffer = 1 ~2 N, Z8 i: W. Q : X3 ]; ]' m5 D0 B9 i
BitConverter.ToUInt16(icmp_pkt_buffer,icmp_header_buffer_index); $ g& V8 u t7 G1 X/ c
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1 N! y7 R# G1 F. L- R 以上代码可以直接在时代互联的ASP+ASP.NET 虚拟主机上直接运行,欢迎试用 !到<a href="http://www.now.net.cn/host" target="_blank" >www.now.net.cn/host</A> 订购后可试用 ! ! X6 n A* d u ! ~$ O: P; |, E
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