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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> & i4 w* A9 j: V v+ I6 Y' N 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> / ^/ m8 w5 u" h! A . s1 D: i; d: l5 w/ x
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使用方法 ping <hostname> [/r] ( |# f( e' X0 F& Y- v8 t$ A / ` N. E* r$ l
<hostname> 主机名 + d; f4 |' i9 }& N4 Q5 E9 T
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[/r] 可选属性,决定是否连续的 ping 远程主机。 ) \6 j* V$ Q! S9 j. f
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下面是代码: ) E2 x; d# C9 u9 n/ E: w : u7 u. z7 b9 I& r
///ping.cs 5 V% u; @8 E+ z! P# o) ~9 s! c
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namespace SaurabhPing 1 H5 Y( s+ n: S+ D7 z1 U ; N( c" C- T. ], z# }, W0 @ y) D9 W
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( y0 q. P" B& J0 I* q% I using System; : b4 q: i, s: J0 ~- x1 R& p+ d9 h , G$ a1 K1 Z& _ J7 E3 g
using System.Net; * X. y! [& g+ k' o2 |9 w! K 7 a. F% ~# q# I9 y
using System.Net.Sockets; & X% d; U G0 i. j' a- @ ; U! M$ p' ]9 c /// <summary> ) i ?$ {3 h, `( Q , l, W2 N7 K s& I) e, D( L3 s' p
/// 主要的类:ping I* s8 S3 @# ]+ {% H' o4 L 7 @' s$ c! ^* r! w7 g- G
/// </summary> # G( @& n/ l' P7 ^0 Z
& k! Q+ J# E- K' N' N7 |) F! ?+ ` class Ping - r1 m/ z7 T. C' F- G6 Y6 N
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//声明几个常量 ; y0 g: n" f" G5 ~
. Q: Z8 B& W9 s0 a# g4 t4 D! l const int SOCKET_ERROR = -1; ( F" C5 j. X7 g1 ?; z $ C4 d! }* m' k% K W* K
const int ICMP_ECHO = 8; 7 ^) s# Z. S+ |+ r7 K) I 2 G2 z" Z5 t! ^8 A$ [: |
/// <summary> 9 N [/ ?1 P; T# W0 e. g0 [ ) K# @" T/ c. G( K; G& a3 f
/// 这里取得Hostname参数 1 R. Q! ]7 \' O" I1 K& o - X P6 L9 Z+ | /// </summary> 9 X7 b3 |. E6 ~
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public static void Main(string[] argv) / x# n" b/ z4 Z+ J5 c* i % f2 q% s' s+ d { 1 ~ R. @$ a7 V$ q8 L 8 K2 x: i/ d: C/ p9 v2 v; z( S
if(argv.Length==0) ! a8 K) z2 m: D/ d5 G 8 Q" ^! ~7 y8 g* o* v
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//If user did not enter any Parameter inform him + N. q' a, B2 s / Z. g+ W- n9 C3 x* E, f" i Console.WriteLine("Usageing <hostname> /r") ; ) M* P r' }/ [7 e( j* ? 6 y- v) K( _9 i" [4 P: m* m$ w
Console.WriteLine("<hostname> The name of the Host who you want to ping"); " M2 `" O- P1 Y- T9 [ * c' ~' K3 r& m9 P
Console.WriteLine("/r Ping the host continuously") ; ! m( k1 A! }- u
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( K% N0 ^9 q! m1 v5 H# E. ^) H else if(argv.Length==1) ) i7 w; Z+ ^% d; X
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//Just the hostname provided by the user 4 i0 Y' @% N- g( Q& L8 d % a6 e5 I. J% G
//call the method "ingHost" and pass the HostName as a parameter 2 }7 A. G1 \. X
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PingHost(argv[0]) ; 6 \( Y) D6 Z0 s2 N' s1 \" W 6 Q( _3 q: J( y1 d } ' z2 I5 \, h1 ]7 D! ]0 ^
2 t8 x" T- l. h! p! w% O, _ else if(argv.Length==2) * d& J3 Q8 i" J( ^
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//the user provided the hostname and the switch - t0 [6 \ Y7 l! r 6 M$ |& T+ M: q* N& t* w* F6 |
if(argv[1]=="/r") : _6 E R8 Y$ H, c" f5 @ ; D! m. U. B" r# F0 `
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//loop the ping program 8 n. i& |# ^6 }- d0 _+ N 7 t% H+ y- o, Q( s while(true) 7 \* k, B& l( n& ~( G7 e
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//call the method "ingHost" and pass the HostName as a parameter % d8 k2 Q: T7 Q) x% W& a: w& | 7 f% s* w f; C$ Q, m+ u9 ~ PingHost(argv[0]) ; . R" X* y& P& P# B) `) m" k7 W& A * L; m# N; o3 l, Z# T
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else ! N- w* x; C" `. `) V ) a& f6 C- I( v! ?# t2 k. @( S! j( B
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//if the user provided some other switch ( Q7 N1 N% N C+ g0 B- |. W0 m
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PingHost(argv[0]) ; , F3 b2 D1 b- S( Y ~) e& G 8 ]2 l( U" G* O8 B7 c
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5 o, o8 Z( j: @; p% n" o V packet.Data = new Byte[PingData]; ! s" D% I# d' ^5 V( }+ w
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//Initilize the Packet.Data 6 T5 {5 s2 I x6 Y9 u" `2 Q- H
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for (int i = 0; i < PingData; i++) }# T7 y# v+ l1 m' |9 ? 3 t% e) ?0 ]9 ^: ^( V
{ , m3 }9 {+ Z7 S/ v% e0 C$ j - v F! E# b% }3 E) t packet.Data = (byte)'#'; ' u7 B. s6 T- h2 {* W9 q; c- u/ d , Q: V. _% {. n2 a+ F7 g1 r
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0 K8 B$ w# w: f9 l/ {- a/ q5 _2 N 8 L2 j9 n* R0 I) Y3 `- `) U) @ //Variable to hold the total Packet size + ~+ A. ?* k3 n+ H' U
* l* s* w) R2 Y" c, h H- i U2 f) T PacketSize = PingData + 8; % |, h" r# g; i7 T, g1 t 6 S. d% R2 X! S5 J1 I1 I
Byte [] icmp_pkt_buffer = new Byte[ PacketSize ]; / ^, a* D8 b8 r# x/ K
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Int32 Index = 0; 8 ~4 @' \0 w/ K" y$ D+ ^3 } % n$ Y! h" U& M, X3 T
//Call a Method Serialize which counts * M# A6 D6 D$ n) H6 S. Q
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//The total number of Bytes in the Packet 6 o' x5 ~! u. W) X3 c- n - C) p; D) ~7 y$ ^/ R+ i1 y/ J1 | Index = Serialize( 0 x5 e) O! x* R+ |6 @ 2 ~+ o2 y6 @0 M
packet, 3 e' n8 {( Q% f H. O! h
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icmp_pkt_buffer, 7 s: y; B( y ~2 X6 c / i* E8 m4 Q; C PacketSize, . G8 A& K% ~2 f 4 l; H: e( {( p$ B
PingData ); ! q8 s4 N( Q3 c' I 4 t X/ Z% ]" Y/ ^
//Error in Packet Size - e& S% C8 `0 \2 @. _5 B& F ' X( R/ I( q& N
if( Index == -1 ) 8 v' H" `. s; W2 d4 ~1 g4 T2 k
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Console.WriteLine("Error in Making Packet"); % u$ j4 O6 ?" D5 }* J* T3 Z
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return ; 7 D/ S+ \" y) w . c5 O4 c" k. D& }- f" \$ w" ]
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// now get this critter into a UInt16 array t+ O1 S# _/ F. n* Z " S+ w9 K1 j, b7 l. [' O6 V( a + i7 g: c& ?3 y
//Get the Half size of the Packet 3 }7 w) |& F2 C
6 J# i2 ?; I. @% D! } ^& x- g: w ^* l Double double_length = Convert.ToDouble(Index); 5 T& R. P' ^' ~. ?9 Q1 J3 h( S 2 L, n/ H- C% o6 c) Z5 r. D7 U
Double dtemp = Math.Ceil( double_length / 2); - V1 |, I- j& [/ u& ] * ?9 o, b0 x% z8 G, G int cksum_buffer_length = Convert.ToInt32(dtemp); 7 N, ~8 {8 @) z
9 |/ g/ i) U$ t! { //Create a Byte Array 4 g3 v# A [" ~" W$ T ; x3 }9 ~9 k. n* J/ N, D
UInt16 [] cksum_buffer = new UInt16[cksum_buffer_length]; . ]0 S% Y, x( h9 p' n2 m) B4 c/ X
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//Code to initialize the Uint16 array . Z. g1 R5 E6 X' |; V1 V$ j+ p( O
) ?! y9 s% M; T4 R2 N9 s int icmp_header_buffer_index = 0; : i/ h8 E) Z1 [/ u ! v. S! P- S+ E2 Q+ ^3 F& ^- Y. ^
for( int i = 0; i < cksum_buffer_length; i++ ) { 3 U3 ]( x+ {' p# [5 w
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cksum_buffer = " H9 _4 S! H( d ' d; @* f- M& f; { BitConverter.ToUInt16(icmp_pkt_buffer,icmp_header_buffer_index); ' }% ?6 U: h. o' r: q0 D
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icmp_header ( `- L7 X. X, l8 V4 F