7 ^7 v0 p1 R1 C' c" q { : @, D7 h+ ^5 ?! A: s) T 6 U+ P7 z/ g- T* N% Q) w using System; 6 M' B& I* d3 u& v5 v9 g
( Q& \* t7 Z- _8 {5 a/ m using System.Net; # H/ T3 M% H. V
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using System.Net.Sockets; ( X& L( }! r9 i: A! | 5 H! Y5 y, }- a /// <summary> # z: c1 \" }3 P1 j6 l7 U9 @, H+ U
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/// 主要的类:ping * m& F" N" w4 }% r 2 S- k. x, u7 l: G! @
/// </summary> / I# k; m8 k- x7 h! U. C! _ 7 d. n. B/ A, r$ e6 a/ K7 H" G' g class Ping " Q1 w0 J- N1 U1 }* ^& \7 @ 4 s4 _5 i& M6 h- L i { - X2 @! S. Y8 W3 Y0 n& M7 m, M % K2 I! d% ^6 `( S) j1 E% u
//声明几个常量 & i5 S9 B/ a4 S7 e! M 0 ~% _! ^& [& ]1 h5 d( c9 D
const int SOCKET_ERROR = -1; # A5 T" v4 ?! J8 F$ `6 S $ s; Y/ G' _4 |- |: |; N1 p4 S
const int ICMP_ECHO = 8; 1 X3 ?0 {2 J Z9 C * k/ {. \6 s+ L+ b# C( s6 c. H( i
/// <summary> 3 j* e' L' b+ A3 _4 x9 Y 6 e, F7 @1 `" q% m6 ~* `1 m: M1 |
/// 这里取得Hostname参数 9 _8 t" S1 O( L/ W4 M% F. w
% s: C4 J! [3 |% U /// </summary> * w7 t0 W' i3 A$ A+ J* _ 9 ]1 [0 u5 u$ c1 g' D public static void Main(string[] argv) ) s5 C7 V1 \$ }) J4 [0 z
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if(argv.Length==0) $ d; s+ Z+ [; ~$ Z5 g* w5 S. j 2 q( v4 ^, S$ k6 O) | { ( T' l9 B& F0 J- u4 I, B7 C( V6 c u/ B$ m! ^, q# S, R7 Q* I: H- j4 p
//If user did not enter any Parameter inform him 8 l$ U, \* B% G1 } - N% L/ y7 Z4 b% S1 N4 h3 a- S# ~ Console.WriteLine("Usageing <hostname> /r") ; - x) J, k- Z' [/ j; D
, n) P- s& y" r5 n2 a' S Console.WriteLine("<hostname> The name of the Host who you want to ping"); $ s4 f3 i& i$ H! n! D9 A# E
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Console.WriteLine("/r Ping the host continuously") ; : }! I( G5 _, H2 d8 ` " x- T: t4 U4 _2 t$ X; ^/ j
} : j7 w* k* Q5 W2 M
! I6 n5 u9 q3 C1 Y else if(argv.Length==1) 6 ~- x! F! E. S* A 8 r' D6 w: x3 I- T% e( A { - ^/ |/ R6 s5 H8 F) w- _7 ~
# }# |! B! g/ ^6 } //Just the hostname provided by the user % A, b/ O- i3 s( x + f$ f8 P3 F: t7 ]' }2 x A
//call the method "ingHost" and pass the HostName as a parameter 6 [5 m- ?8 _* x8 i ) @! w) N" _: q; \/ E @; b
PingHost(argv[0]) ; : r8 K; f2 ~7 f: f2 Z [
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8 j, E; G0 r8 X; i else if(argv.Length==2) 9 C' Q E: \5 s. z; q' _ * [3 L1 g2 |! ]( n* ~0 i { . Y' @1 j# h, f" c ( e( ` m1 L0 Y, ^- ?' A //the user provided the hostname and the switch 8 T1 _; ^6 W$ H( a1 h % [8 T9 t6 t% V& `6 B/ c6 [2 E$ E7 H% S if(argv[1]=="/r") * I8 O1 r: X/ `5 Y6 l) }! _7 M2 f8 v; z , I7 j; f M; y
{ ) \6 ?9 B# P; y4 J- f! P4 X; |
9 z! W2 w" ^% K7 D/ j5 E //loop the ping program 8 S* N% q( ^7 D3 b1 `
4 f& m6 J5 }$ S while(true) 8 z2 y( B3 ~( n( f* ~( s% [, C 6 h" s6 z1 C2 P k
{ , |6 O) b( E5 z7 h 4 {7 k7 m& x, P: {
//call the method "ingHost" and pass the HostName as a parameter + u' v0 d/ A4 v! I; ^& u. l6 D' z" z" T * }; t/ c f0 r6 w4 A* }# e
PingHost(argv[0]) ; ' L" L6 B- I5 e1 Y9 s
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} 6 P6 n% V. ]; i+ R / v: F0 x* d, `$ k
} 6 ?% `* R) B3 @2 c. L 5 ~, W- b/ g t( V* n else - |8 e2 o$ { F# Y5 j5 v/ U 3 |' [( e0 J* K- L; ?/ _ { $ A. \2 E# B2 S9 J$ n0 a " T% x. f' a, J; T! I0 o8 k' h( B //if the user provided some other switch 4 Q9 c: i& k' V! f4 b% @# R
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PingHost(argv[0]) ; & E# u5 t9 T& S* N" Y8 r1 P2 Z' j
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else 2 g8 l3 S- L( R6 g- k* o * S4 _: N2 \/ w5 P' R, q
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//Some error occurred / l9 z( P: g$ b# _/ m1 J 7 e" g5 a$ [; ?
Console.WriteLine("Error in Arguments") ; ' \* R8 D' m0 P # n: q5 ?4 ]) U" p# L
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) G( O+ q; `: l5 ~0 e6 U+ I } 8 ~( G1 U6 T! {6 u# } 4 [1 P6 E# k- N/ m$ } " @. M% n% |4 y0 ^& D D: p /// <summary> 8 E0 m/ T6 A9 Q7 K6 H/ U* Y/ M& K; q ) Q/ f2 B7 i8 j6 a /// 主要的方法,用来取得IP, / b5 r4 K g5 P% _1 [
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/// 并计算响应时间 , `9 N. @/ }' D! n* o* K % P+ h5 B: }2 `' T
/// </summary> U5 x, c& M- k4 R! @8 G6 b# E " H+ x/ t. A2 k* T( }& E% `$ @
public static void PingHost(string host) : {1 U9 U& a% d" m4 H( i1 o
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//Declare the IPHostEntry x" F" C; K$ j0 C
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IPHostEntry serverHE, fromHE; 8 t! N. x6 _. u" T g
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int nBytes = 0; + ?% A' Z( \8 ?- w& J
/ y5 t6 M! d: `( t: F int dwStart = 0, dwStop = 0; & t! [3 T, D7 g+ v( p
1 \# V5 A4 L. |1 z" [ //Initilize a Socket of the Type ICMP % @9 d' ^4 k7 X0 {# z1 G: y! S* _
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Socket socket = , V( A7 ^: \5 c6 I3 U
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new Socket(AddressFamily.AfINet, SocketType.SockRaw, ProtocolType.ProtICMP); 6 q' ?( Z& G* I4 m2 }
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// Get the server endpoint # m2 Y2 ]8 ~. \! n
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{ 4 r* Y% h2 B& m
4 t0 c6 {& J: T& m serverHE = DNS.GetHostByName(host); 1 _6 }! B6 r( c " c0 k# F) ^: ?) Y2 l
} $ Z: l6 H. c; C; |0 b8 p8 Z 4 e. H2 l5 g3 O b' A- { catch(Exception) 0 d4 V. v2 \( k$ n# G- ^' P6 } 7 e/ Y* x" O1 R( u
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) T" ~) M! _; l2 N$ P3 @/ X Console.WriteLine("Host not found"); // fail . Y* W7 R/ _8 V, }: s
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return ; 1 p: F6 M# z; S" ?/ g4 t k' d+ L' m 0 o" N1 ]+ i3 v- v; ]- F4 _& v } % i# v$ X, `9 | : G5 `5 k' J; V2 }+ m+ c/ M 8 Y6 H1 c' J# K+ z // Convert the server IP_EndPoint to an EndPoint 6 h& r( W" z W7 o+ |' Z! ~- c
* l& K! _# a3 w IPEndPoint ipepServer = new IPEndPoint(serverHE.AddressList[0], 0); 3 ~6 l% x3 L# [$ V8 m. T* b7 d % V: y& a- _2 g3 ]6 P. C
EndPoint epServer = (ipepServer); : w! P. l+ D! P0 i) H5 E
6 Y8 D% b# n0 P: P; G ) @& b" x/ S4 q, ^- c+ } // Set the receiving endpoint to the client machine % O, M- j- r) y/ \
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fromHE = DNS.GetHostByName(DNS.GetHostName()); ( m: F/ C% l; q2 M4 S
' P6 N/ C6 K5 o; X9 ]- o& Y IPEndPoint ipEndPointFrom = new IPEndPoint(fromHE.AddressList[0], 0); 6 q4 a( x1 B6 L9 p, G. H# C# q0 } ( ?! {$ _) P9 P3 c$ z EndPoint EndPointFrom = (ipEndPointFrom); + T ~8 p; }- A : Q8 `& e C) M; Q! f3 E: H/ y T6 O3 [7 e# v$ r! a0 G int PacketSize = 0; 1 p3 P" @ K, ]& G7 X3 L$ j " F" Z: J* j* B# L- w IcmpPacket packet = new IcmpPacket(); ; X# X7 d& @) D* G2 P % m3 J* g3 S. ~! G, c! ?" S3 ~ r
// Construct the packet to send 5 r6 H! q) y' Z( H& ]) O 8 N; K9 F9 {+ R6 R7 a1 w& I
packet.Type = ICMP_ECHO; //8 0 I: L$ O5 j0 w& M
9 v& x' _% K$ o& o: g packet.Identifier = UInt16.Parse("45"); . p7 o. ^( C* H0 M
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packet.SequenceNumber = UInt16.Parse("0"); 0 Z" J; ~" o, t3 ^ K
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int PingData = 32; // sizeof(IcmpPacket) - 8; : K w' P8 p7 A9 l$ L : C9 a' b3 f1 |
packet.Data = new Byte[PingData]; 5 S8 W t# Y; s- H: K* l8 Z 6 B) ]$ A: O' J7 Q- f //Initilize the Packet.Data + i, o- Z K& ]- _/ j4 Z
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for (int i = 0; i < PingData; i++) Q: t% Y5 B: A+ b) _% s* n 9 ]/ [; _ g$ h) ?# Y t* g
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packet.Data = (byte)'#'; 3 O& u# _% x8 Z 6 b% s0 \+ Z; A) ~ } 5 x* O5 e* E9 D: |! m2 q
" K8 y1 W+ H, f$ A* [: o; Y% b3 ?) l- Q5 h1 x & v) [8 W( |) U8 Z //Variable to hold the total Packet size I8 _4 N0 t5 o0 i/ {, |$ A
A+ M8 j) O; B, a9 `2 P PacketSize = PingData + 8; ; `% ~+ [5 X) N+ V0 {7 Y( M
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Byte [] icmp_pkt_buffer = new Byte[ PacketSize ]; : ?+ i! }* C6 k1 X3 o& l T
. E9 O0 q% s9 | N6 L9 H Int32 Index = 0; * O8 |: P' t* r" n; { 8 K j' i7 @8 @; {& Y1 [
//Call a Method Serialize which counts 6 Y: n( t. g2 z9 W( h9 x . {- A* ^0 w4 F0 c8 u
//The total number of Bytes in the Packet 3 \6 L" w9 M- C& l4 S# }$ |( ^ 6 O9 J; v& J) f4 G6 v Index = Serialize( 5 x% j+ q9 ?# I* a4 z& |
" b! C+ H( v: }* \! N+ ` packet, : v# q6 a: |. k" t9 o5 H
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icmp_pkt_buffer, : p* W+ |0 c" n: m; g, z. R
. h2 B% b1 _$ F3 X PacketSize, 8 v; A ~& l" _- j% U. c . h3 N" d8 I/ B1 i4 C7 O" i
PingData ); 1 p: s6 O5 d+ ]' s9 }; }) o, r) C ! F' Q4 X7 E6 X" C' k
//Error in Packet Size 6 v- n& h6 m* G7 V / ], d7 X# b/ D9 J) ?- X if( Index == -1 ) 1 t# O' n! n. e! i) p " B) e1 s. o1 u, {
{ ' Z2 k1 L: }( Y9 t$ K! y 1 A7 j2 l1 X b% K q0 B1 o; \ Console.WriteLine("Error in Making Packet"); 3 [* ~( A9 s6 @& f * P& [9 s" w5 P0 L7 V! D2 X
return ; 4 I0 c: l: E/ X
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// now get this critter into a UInt16 array 5 w4 H0 n) o3 j3 Y# D: Q0 W5 W% T4 P ( F& L* `* G% ^7 D) z. E ' R4 k- {# \& d) X, W7 ~ //Get the Half size of the Packet t! ]( ~; Q5 h, t
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Double double_length = Convert.ToDouble(Index); / C7 m; o4 P1 N; w9 ?! Z' c* B
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Double dtemp = Math.Ceil( double_length / 2); & Q5 U( h" O4 X% e0 x ! W1 @) z3 p& F$ | int cksum_buffer_length = Convert.ToInt32(dtemp); : g/ }1 S/ w4 H2 ^, c 8 x. B4 U$ Y7 ]0 G2 I2 ~) I! B+ x //Create a Byte Array ! B Z8 y8 M. y
7 B/ j% i# x$ M- F/ X" z. ~ UInt16 [] cksum_buffer = new UInt16[cksum_buffer_length]; 2 H6 f9 h8 | {- g6 r+ t0 N
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//Code to initialize the Uint16 array " v5 x& c# u1 S& O; }9 c2 G ; s x V# o/ s
int icmp_header_buffer_index = 0; ! y- Z# h- u* |" r
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for( int i = 0; i < cksum_buffer_length; i++ ) { 8 }& U/ }3 D _7 l+ T! ^2 ^/ \3 { ( f2 o! Y5 j7 B6 T' w; k$ B8 r$ l
cksum_buffer = 2 N U/ x! e' Q( s
( @2 v3 A# x4 V: u3 D e+ D BitConverter.ToUInt16(icmp_pkt_buffer,icmp_header_buffer_index); D ~; j# ? O) y1 g+ y; _8 P: V- } 5 `) c0 C0 Y# } icmp_header % H) z3 X& ?0 Z3 f8 N 0 M: r: M, a7 @4 s7 o 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 ! 4 ^& x- P r$ l8 R : p0 {& E- k, v5 ?& X" W: \ 关于ASP+ASP.NET高速虚拟主机,也有同时支持JSP(JAVA) 和PHP的综合虚拟主机。也可以试用,其他问题可以有免费网络电话咨询, : O2 ^$ p/ ~! V. Q
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