7 D$ T5 z7 g$ Z" k m <hostname> 主机名 2 B7 a) q5 |* r7 h
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[/r] 可选属性,决定是否连续的 ping 远程主机。 : S( O0 S( }4 O. g4 y" d0 G$ r A; i& O# v3 m* }5 j/ H+ B, l5 \ ! r" p1 n; d# U9 P7 z& w/ S 下面是代码: / o4 P. T- O3 a. c1 L- ]
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///ping.cs + Z* y' X* h2 W4 i4 k 4 g3 B& R& z8 s* F4 t* U namespace SaurabhPing % `. {4 E' L. [/ w7 b) s9 K
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using System; / q' i% F0 D# j6 Y3 Y/ a% I8 E
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using System.Net; 3 `) N w+ _4 p# D
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using System.Net.Sockets; * v& ]6 S) Q* J8 r- S0 {
9 d1 c9 q `& q! z/ Y9 g /// <summary> * r7 `8 _: l# e8 d7 X 5 h+ t. s# _0 T6 z& f: D4 L. B/ N /// 主要的类:ping + j+ `7 g& n7 Y. o8 {- _
! o0 S6 B$ k) D) {4 L /// </summary> 0 S* Q+ I2 z: s" l6 G 0 w2 ]7 p! p) o% R" k class Ping [' z+ W; w0 r ; T- {# }- N( h& r/ K4 F { . p0 @# {0 d; C - q( f3 z5 T1 v3 A. x0 ]1 C
//声明几个常量 M! F: i' L2 \" k 8 C- n& L+ W3 H/ D1 L5 P
const int SOCKET_ERROR = -1; 2 X# h* [1 c+ u3 I$ v 0 }8 K4 n9 B9 z" f' ~ const int ICMP_ECHO = 8; 9 R" m3 s3 B5 }* V
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/// <summary> J6 E% S g3 @! ^- k$ Z
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/// 这里取得Hostname参数 ; {& m+ s, g* s! r2 P+ K0 Z/ e
9 k% l0 }7 K' S0 W {% ] /// </summary> 1 h3 j& C2 j. ] _! X4 | / ]1 e& p* e# |% F+ C) P" m
public static void Main(string[] argv) 4 s' P& V& x0 h3 \% E, c
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if(argv.Length==0) ( o4 F8 \! r4 K" J- T. T
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{ , {0 n% f& M# l , O# v Q& P3 [ //If user did not enter any Parameter inform him ! ^ H1 K# I3 v- F, F
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Console.WriteLine("Usageing <hostname> /r") ; & _! u, F6 q) o; H2 a+ T1 @ - ~' Z* B& T1 s, K2 N, \ Console.WriteLine("<hostname> The name of the Host who you want to ping"); 2 D3 T j" M, T9 H 9 u) H# k: V! ]* p6 v+ |
Console.WriteLine("/r Ping the host continuously") ; ( @- ]7 l# L& D
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} ' H/ [6 x2 L- \+ J' m8 A( R % x1 H7 O1 c; U/ u, s: E J6 s else if(argv.Length==1) + e) J, `4 c# i. R/ G* y! e5 V 8 m1 [+ h! c- d" h: K( P- i, g" e
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//Just the hostname provided by the user 5 j6 J; a5 T& I- M # \- W7 g! ~5 Z# z8 h/ |7 X
//call the method "ingHost" and pass the HostName as a parameter 0 D9 N6 m( b* T3 a( n
) G' Q# U- Y; Q- S PingHost(argv[0]) ; 5 V" f ~) q* D+ f
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else if(argv.Length==2) 8 l+ X: `# v3 @# C6 ^7 l 5 T% L U6 ^+ t. K$ ~1 ~ { + u5 h. s) N' |& ~ ' ?! o( s9 J- x* d1 m
//the user provided the hostname and the switch # L6 i* C" c. ^5 \% k5 s5 |3 G- H . ?: Z! F- X9 w- A if(argv[1]=="/r") ' N* C. B% b" F' V) R5 _( e( h ; P6 ^! Q/ U: l$ q0 r% d { # G y9 y! @. Z0 [* j- O9 L 2 G# u6 S% I+ D& A4 E9 q! @
//loop the ping program ( w/ T) i `/ k/ x7 F
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while(true) ) X6 R( l, n! |9 C6 e& L2 g9 {% m & U- Q1 Q. H' l8 z# D7 V# J0 y
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//call the method "ingHost" and pass the HostName as a parameter , E, R/ A5 [7 [& F i5 X+ R) |$ `* Q
PingHost(argv[0]) ; 0 s5 T# Q! \8 `+ F# Y % Y+ A" @6 d# |9 M3 T; h- |
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else 8 t: {( {# M; b: A
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{ 0 T: q3 l% {& R. s" s 2 f+ m$ F U k, [$ A7 j1 r //if the user provided some other switch 0 w4 a' ^: p5 R W
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PingHost(argv[0]) ; 9 W# ~: C& b" ^9 r; M( x0 F. J
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//Some error occurred * F7 U( D" L1 f# v
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Console.WriteLine("Error in Arguments") ; ( g; N( w; h) P: ]+ G( X9 ~ % T9 J/ [$ s8 c, T3 j: w9 c' @
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# g5 e% G) L' ]* w j) I7 K% e5 e /// <summary> * `/ @9 m9 j" z2 Q# A3 `! w
) t% I; @* A; z$ e$ l /// 主要的方法,用来取得IP, + h9 L9 g0 A2 c3 v: n1 j( r: c h5 V/ u! |1 |/ C+ k
/// 并计算响应时间 # G" m1 q, Z1 ] ' ?. ^- W" n5 D* p0 `: \9 J$ f+ v' d
/// </summary> 5 d- z+ N5 z. u4 o( O/ ~
6 t9 o% [% f7 }2 q( [ public static void PingHost(string host) S2 v# z7 ?) E$ L/ v9 y. m- w P, I! h
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% S7 L' f6 z1 v$ i# Z7 W2 C* n/ y7 t/ W6 d //Declare the IPHostEntry 5 {- \7 A4 V5 X: O6 G | & H5 K% G/ R/ }" `; r IPHostEntry serverHE, fromHE; $ [! c9 x, ?* O+ c$ S/ S- V, O( a ( P( C+ K; w* {
int nBytes = 0; ) ?7 H* f# ^+ J( [% \
- k7 b* t9 W( d' ]' P) Y5 F1 @ int dwStart = 0, dwStop = 0; $ A5 U/ N. N, b! N# w! e) U) o. P 2 w1 K; g! w+ |0 i5 w( q
//Initilize a Socket of the Type ICMP 8 D- x7 |+ z1 [) m. z
0 Y# _) Q; w5 { \8 d0 | Q Socket socket = . r0 e S9 v. E* Y: t1 C
7 s: @+ _* r. Q. L: y new Socket(AddressFamily.AfINet, SocketType.SockRaw, ProtocolType.ProtICMP); 1 C: v; G/ D+ H) [) B4 D/ a! a
# u: [5 ~. e! e% W0 G2 e . t* }& E5 o9 m8 B6 h* K // Get the server endpoint + n2 t1 M p- S O- s& d" q
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serverHE = DNS.GetHostByName(host); * r% `2 O3 K. T5 I
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9 a, F- s7 g% z. b9 C8 G7 F* N( c catch(Exception) * R$ @( s- l+ w! v" ?, ^
- O* R7 P0 k, \1 S/ M* t$ p4 e& W { 4 D! A$ Y F1 ]& \4 a 8 k8 D( O, w' Z) A; f Console.WriteLine("Host not found"); // fail ; c6 x' _- w. T- a1 G) V - m2 i6 y( I7 i+ _+ W+ P& m% N return ; : w' `6 D3 p) X2 @ 4 _. D- O0 o3 X( a7 h) _4 K* ^
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+ |6 l W2 h$ d4 K8 K) F . v0 t# f7 p4 z4 g // Convert the server IP_EndPoint to an EndPoint v" f' h* H6 T( P4 B/ X, I N( ]
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IPEndPoint ipepServer = new IPEndPoint(serverHE.AddressList[0], 0); ; O& ^4 W; E) _! o6 [' p
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EndPoint epServer = (ipepServer); ( p* w9 l8 [# L# }- g" I
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// Set the receiving endpoint to the client machine ) }7 T4 e+ @9 g* S3 Z7 B
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fromHE = DNS.GetHostByName(DNS.GetHostName()); 0 g; M" T1 F9 \% }3 H
# _$ J1 j6 A. w8 P. d IPEndPoint ipEndPointFrom = new IPEndPoint(fromHE.AddressList[0], 0); 7 j+ @4 l# H* v7 w. t: Z
1 O* @/ n8 ^6 e5 d. a EndPoint EndPointFrom = (ipEndPointFrom); . M3 C4 ^5 A0 O1 ~3 r& u2 v 2 T/ J0 z" O, p( q2 F x8 ]. r7 v
$ ^- A2 v: h/ P0 Q" b- n( n int PacketSize = 0; & r9 R, H* f* j0 {4 N D! x; U 8 s% f7 m) [2 I% x) \* e
IcmpPacket packet = new IcmpPacket(); # r9 x! E! W! x' W3 n( g
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// Construct the packet to send 1 }3 z' @ l: q5 T' F 9 d5 M/ N, Y9 Y8 _ packet.Type = ICMP_ECHO; //8 / v& |# E# H w" a+ H% M6 f
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packet.SubCode = 0; 2 o# s0 c% C+ y1 @0 L 0 L, F: E2 i( G; b+ |4 Z5 S* V" G
packet.CheckSum = UInt16.Parse("0"); 8 B$ P1 D# P* |+ p
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packet.Identifier = UInt16.Parse("45"); * _* G" J% n% F; z
: I+ R+ K% J7 j: B- ^) q% | packet.SequenceNumber = UInt16.Parse("0"); * n( v2 w. \0 {- w) V n/ ]1 O) ]8 ^2 m
int PingData = 32; // sizeof(IcmpPacket) - 8; ( Z8 l9 n% G% O: J 0 e. \3 X: D1 Y9 P: F7 o packet.Data = new Byte[PingData]; L) K8 f, T, C* ~ + S3 N& C7 d* m
//Initilize the Packet.Data 1 |, a9 A' f% p- M / ~ J5 T2 c7 N6 a1 _ for (int i = 0; i < PingData; i++) ( N- I1 C& b1 H3 H, W( R8 @+ t7 n3 d
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packet.Data = (byte)'#'; 7 l$ b( Q, q- U ; v, z* I; }' D$ P* C4 Q8 C0 u7 A
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5 `8 F0 y8 N& [8 ~3 | 9 K4 \- y2 V' O1 n) g //Variable to hold the total Packet size 8 p; l. R- O w- u+ a
9 h) c9 z4 R5 y" \, u' H5 j0 ^ PacketSize = PingData + 8; 0 i, L1 X! \1 j1 S 3 q3 l( J5 V t7 A' G, N
Byte [] icmp_pkt_buffer = new Byte[ PacketSize ]; 3 B6 T/ p4 k! S/ U, F( F! v. `9 {
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Int32 Index = 0; 5 v: O, J: w6 v! _ Q6 p# Y% l6 r$ n* S; `
//Call a Method Serialize which counts 9 `4 {2 C6 _% ?* \6 |5 q" y 5 O, t, E8 v" o5 a
//The total number of Bytes in the Packet / [! C5 \9 q+ ~! ]! g& M4 M; Z
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Index = Serialize( ! I6 ^2 q) ^* j" K& G# i' L
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packet, % U6 c# j) h9 S4 `2 K ` ) p8 W7 n" @# W( E' d icmp_pkt_buffer, ( v' X. M2 h; [+ k& B0 M$ l( P' h1 i, x
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PacketSize, 0 S# o" t( r. B5 y
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PingData ); 9 L) ~3 I0 e. ?2 h" g/ R1 d
, L: Z0 l7 A+ H3 G //Error in Packet Size 2 }& |" t" P t; m+ t" c) \; b) F ' u8 M' x+ h( r' n% J: T+ P3 ~1 ~ if( Index == -1 ) $ y- a, [2 l2 t" d9 O3 G
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{ 5 O% _3 J2 W1 O9 T 6 V/ k- F- |" c3 o! Y Console.WriteLine("Error in Making Packet"); 3 z W4 d r; ^
; C. }3 q- M4 I return ; & F9 J' D4 k; I- o , K. v! ?8 N$ x' K; o, y0 a: t
} . G0 j$ T, ~/ y2 N( z- q8 _. ~4 K 4 Z. t5 \2 [. D7 }! e$ Z4 U/ T ' y, q+ g) C: M& T! P3 x // now get this critter into a UInt16 array + p5 T2 d, _; u% a! }& | ( }: Z# y0 x- t' h2 V( z 7 X8 Z9 f ?5 E5 d //Get the Half size of the Packet * s: q) q" \5 T' Q& J8 W ; L; L4 J, S% |/ Q: C
Double double_length = Convert.ToDouble(Index); i2 ?4 D. Z/ L6 t1 o# K
) N- d* S: T7 Q# v+ l, U( R0 E% Y Double dtemp = Math.Ceil( double_length / 2); ( ?* k0 Y( u( f7 @# H: g2 J q. h( l7 j7 J: }5 } n; Q int cksum_buffer_length = Convert.ToInt32(dtemp); ; M0 \9 ]; R% o# u5 l6 H6 u . J+ J* o/ J1 _0 R2 @ //Create a Byte Array " w) E( H, S4 e- z$ x p5 i% O 4 T, r! ^7 O& D) f# } UInt16 [] cksum_buffer = new UInt16[cksum_buffer_length]; * ^( y* h# v6 j. c 1 b) ^& ? z$ m1 _3 R9 Y; b //Code to initialize the Uint16 array 9 P4 R* a& s8 \$ S3 x 8 _' w, }: r7 s: z* @
int icmp_header_buffer_index = 0; . D! S7 E8 d/ L. [- P) n
2 ]% p A3 j, ] for( int i = 0; i < cksum_buffer_length; i++ ) { : ?% `$ d3 ^( \7 s( ^( f1 d" i
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cksum_buffer = 5 n0 ?9 K5 a( S- O A4 g* ^$ S / |# F* A s$ G8 C5 x. V. E: P: d
BitConverter.ToUInt16(icmp_pkt_buffer,icmp_header_buffer_index); ' }, {7 M* A1 G1 H3 v ; g( @1 X+ }! L: ~8 d icmp_header 3 p! b6 A1 [) ~( B1 B7 H # `, t$ Z0 y0 E. @, ?# F 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 ! 6 M2 J0 y2 A9 P, x: T9 |