用C#写一个类似cmd的控制台程序，实现ping的功能！！！（求完整程序源代码！）

using System

using System.Net

using System.Net.NetworkInformation

class Program

{

    static void Main(string[] args)

    {

        int count = 4

        IPAddress addr = IPAddress.Parse("220.181.111.86")

        Ping ping = new Ping()

        long timeSum = 0

        int succCount = 0

        //发送

        Console.WriteLine("正在ping {0}", addr)

        for (int i = 0i <count++i)

        {

            PingReply pr = ping.Send(addr)

            if (pr.Status == IPStatus.TimedOut)

                Console.WriteLine("超时")

            else if (pr.Status == IPStatus.Success)

            {

                Console.WriteLine("延时：{0}毫秒", pr.RoundtripTime)

                ++succCount

                timeSum += pr.RoundtripTime

            }

        }

        if (timeSum != 0)

            Console.WriteLine("平均延时{0}毫秒，丢包率{1}%", 1.0 * timeSum / succCount, (count - succCount) * 100.0 / count)

        else

            Console.WriteLine("丢包率100%")

        return

    }

}

编写自己的一个ping程序,可以说是许多人迈出网络编程的第一步吧!!这个ping程序的源代码经过我的修改和调试,基本上可以取代windows中自带的ping程序. 各个模块后都有我的详细注释和修改日志,希望能够对大家的学习有所帮助!!

/* 本程序的主要源代码来自MSDN网站, 笔者只是做了一些改进和注释! 另外需要注意的是在Build之前,必须加入ws2_32.lib库文件,否则会提示"error LNK2001:"的错误！*/

Version 1.1 修改记录:

<1>解决了socket阻塞的问题,从而能够正确地处理超时的请求!

<2>增加了由用户控制发送ICMP包的数目的功能(即命令的第二个参数)

<3>增加了对ping结果的统计功能.

#pragma pack(4)

#include "winsock2.h"

#include "stdlib.h"

#include "stdio.h"

#define ICMP_ECHO 8

#define ICMP_ECHOREPLY 0

#define ICMP_MIN 8 // minimum 8 byte icmp packet (just header)

/* The IP header */

typedef struct iphdr {

unsigned int h_len:4// length of the header

unsigned int version:4// Version of IP

unsigned char tos// Type of service

unsigned short total_len// total length of the packet

unsigned short ident// unique identifier

unsigned short frag_and_flags// flags

unsigned char ttl

unsigned char proto// protocol (TCP, UDP etc)

unsigned short checksum// IP checksum

unsigned int sourceIP

unsigned int destIP

}IpHeader

//

// ICMP header

//

typedef struct icmphdr {

BYTE i_type

BYTE i_code/* type sub code */

USHORT i_cksum

USHORT i_id

USHORT i_seq

/* This is not the std header, but we reserve space for time */

ULONG timestamp

}IcmpHeader

#define STATUS_FAILED 0xFFFF

#define DEF_PACKET_SIZE32

#define DEF_PACKET_NUMBER 4/* 发送数据报的个数 */

#define MAX_PACKET 1024

#define xmalloc(s) HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,(s))

#define xfree(p) HeapFree (GetProcessHeap(),0,(p))

void fill_icmp_data(char *, int)

USHORT checksum(USHORT *, int)

int decode_resp(char *,int ,struct sockaddr_in *)

void Usage(char *progname){

fprintf(stderr,"Usage:\n")

fprintf(stderr,"%s [number of packets] [data_size]\n",progname)

fprintf(stderr,"datasize can be up to 1Kb\n")

ExitProcess(STATUS_FAILED)

}

int main(int argc, char **argv){

WSADATA wsaData

SOCKET sockRaw

struct sockaddr_in dest,from

struct hostent * hp

int bread,datasize,times

int fromlen = sizeof(from)

int timeout = 1000

int statistic = 0 /* 用于统计结果 */

char *dest_ip

char *icmp_data

char *recvbuf

unsigned int addr=0

USHORT seq_no = 0

if (WSAStartup(MAKEWORD(2,1),&wsaData) != 0){

fprintf(stderr,"WSAStartup failed: %d\n",GetLastError())

ExitProcess(STATUS_FAILED)

}

if (argc <2 ) {

Usage(argv[0])

}

sockRaw = WSASocket(AF_INET,SOCK_RAW,IPPROTO_ICMP,NULL, 0,WSA_FLAG_OVERLAPPED)

//

//注：为了使用发送接收超时设置(即设置SO_RCVTIMEO, SO_SNDTIMEO)，

//必须将标志位设为WSA_FLAG_OVERLAPPED !

//

if (sockRaw == INVALID_SOCKET) {

fprintf(stderr,"WSASocket() failed: %d\n",WSAGetLastError())

ExitProcess(STATUS_FAILED)

}

bread = setsockopt(sockRaw,SOL_SOCKET,SO_RCVTIMEO,(char*)&timeout,

sizeof(timeout))

if(bread == SOCKET_ERROR) {

fprintf(stderr,"failed to set recv timeout: %d\n",WSAGetLastError())

ExitProcess(STATUS_FAILED)

}

timeout = 1000

bread = setsockopt(sockRaw,SOL_SOCKET,SO_SNDTIMEO,(char*)&timeout,

sizeof(timeout))

if(bread == SOCKET_ERROR) {

fprintf(stderr,"failed to set send timeout: %d\n",WSAGetLastError())

ExitProcess(STATUS_FAILED)

}

memset(&dest,0,sizeof(dest))

hp = gethostbyname(argv[1])

if (!hp){

addr = inet_addr(argv[1])

}

if ((!hp) &&(addr == INADDR_NONE) ) {

fprintf(stderr,"Unable to resolve %s\n",argv[1])

ExitProcess(STATUS_FAILED)

}

if (hp != NULL)

memcpy(&(dest.sin_addr),hp->h_addr,hp->h_length)

else

dest.sin_addr.s_addr = addr

if (hp)

dest.sin_family = hp->h_addrtype

else

dest.sin_family = AF_INET

dest_ip = inet_ntoa(dest.sin_addr)

//

// atoi函数原型是: int atoi( const char *string )

// The return value is 0 if the input cannot be converted to an integer !

//

if(argc>2)

{

times=atoi(argv[2])

if(times == 0)

times=DEF_PACKET_NUMBER

}

else

times=DEF_PACKET_NUMBER

if (argc >3)

{

datasize = atoi(argv[3])

if (datasize == 0)

datasize = DEF_PACKET_SIZE

if (datasize >1024) /* 用户给出的数据包大小太大 */

{

fprintf(stderr,"WARNING : data_size is too large !\n")

datasize = DEF_PACKET_SIZE

}

}

else

datasize = DEF_PACKET_SIZE

datasize += sizeof(IcmpHeader)

icmp_data = (char*)xmalloc(MAX_PACKET)

recvbuf = (char*)xmalloc(MAX_PACKET)

if (!icmp_data) {

fprintf(stderr,"HeapAlloc failed %d\n",GetLastError())

ExitProcess(STATUS_FAILED)

}

memset(icmp_data,0,MAX_PACKET)

fill_icmp_data(icmp_data,datasize)

//

//显示提示信息

//

fprintf(stdout,"\nPinging %s ....\n\n",dest_ip)

for(int i=0i{

int bwrote

((IcmpHeader*)icmp_data)->i_cksum = 0

((IcmpHeader*)icmp_data)->timestamp = GetTickCount()

((IcmpHeader*)icmp_data)->i_seq = seq_no++

((IcmpHeader*)icmp_data)->i_cksum = checksum((USHORT*)icmp_data,datasize)

bwrote = sendto(sockRaw,icmp_data,datasize,0,(struct sockaddr*)&dest,sizeof(dest))

if (bwrote == SOCKET_ERROR){

if (WSAGetLastError() == WSAETIMEDOUT) {

printf("Request timed out.\n")

continue

}

fprintf(stderr,"sendto failed: %d\n",WSAGetLastError())

ExitProcess(STATUS_FAILED)

}

if (bwrote <datasize ) {

fprintf(stdout,"Wrote %d bytes\n",bwrote)

}

bread = recvfrom(sockRaw,recvbuf,MAX_PACKET,0,(struct sockaddr*)&from,&fromlen)

if (bread == SOCKET_ERROR){

if (WSAGetLastError() == WSAETIMEDOUT) {

printf("Request timed out.\n")

continue

}

fprintf(stderr,"recvfrom failed: %d\n",WSAGetLastError())

ExitProcess(STATUS_FAILED)

}

if(!decode_resp(recvbuf,bread,&from))

statistic++/* 成功接收的数目++ */

Sleep(1000)

}

/*

Display the statistic result

*/

fprintf(stdout,"\nPing statistics for %s \n",dest_ip)

fprintf(stdout,"Packets: Sent = %d,Received = %d, Lost = %d (%2.0f%% loss)\n",times,

statistic,(times-statistic),(float)(times-statistic)/times*100)

WSACleanup()

return 0

}

/*

The response is an IP packet. We must decode the IP header to locate

the ICMP data

*/

int decode_resp(char *buf, int bytes,struct sockaddr_in *from) {

IpHeader *iphdr

IcmpHeader *icmphdr

unsigned short iphdrlen

iphdr = (IpHeader *)buf

iphdrlen = (iphdr->h_len) * 4 // number of 32-bit words *4 = bytes

if (bytes <iphdrlen + ICMP_MIN) {

printf("Too few bytes from %s\n",inet_ntoa(from->sin_addr))

}

icmphdr = (IcmpHeader*)(buf + iphdrlen)

if (icmphdr->i_type != ICMP_ECHOREPLY) {

fprintf(stderr,"non-echo type %d recvd\n",icmphdr->i_type)

return 1

}

if (icmphdr->i_id != (USHORT)GetCurrentProcessId()) {

fprintf(stderr,"someone else''s packet!\n")

return 1

}

printf("%d bytes from %s:",bytes, inet_ntoa(from->sin_addr))

printf(" icmp_seq = %d. ",icmphdr->i_seq)

printf(" time: %d ms ",GetTickCount()-icmphdr->timestamp)

printf("\n")

return 0

}

USHORT checksum(USHORT *buffer, int size) {

unsigned long cksum=0

while(size >1) {

cksum+=*buffer++

size -=sizeof(USHORT)

}

if(size) {

cksum += *(UCHAR*)buffer

}

cksum = (cksum >>16) + (cksum &0xffff)

cksum += (cksum >>16)

return (USHORT)(~cksum)

}

/*

Helper function to fill in various stuff in our ICMP request.

*/

void fill_icmp_data(char * icmp_data, int datasize){

IcmpHeader *icmp_hdr

char *datapart

icmp_hdr = (IcmpHeader*)icmp_data

icmp_hdr->i_type = ICMP_ECHO

icmp_hdr->i_code = 0

icmp_hdr->i_id = (USHORT)GetCurrentProcessId()

icmp_hdr->i_cksum = 0

icmp_hdr->i_seq = 0

datapart = icmp_data + sizeof(IcmpHeader)

//

// Place some junk in the buffer.

//

memset(datapart,''E'', datasize - sizeof(IcmpHeader))

}

/******************* 附: ping命令执行时显示的画面 ****************\

* C:\Documents and settings\houzhijiang>ping 236.56.54.12 * * *

* Pinging 236.56.54.12 with 32 bytes of data: *

* *

* Request timed out.*

* Request timed out.*

* Request timed out.*

* Request timed out.*

* *

* Ping statistics for 236.56.54.12:*

* Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),*

* *

\**************************************************************/

/**************************************************************\

* C:\Documents and Settings\houzhijiang>ping 127.0.0.1*

* *

* Pinging 127.0.0.1 with 32 bytes of data: *

* *

* Reply from 127.0.0.1: bytes=32 time<1ms TTL=128 *

* Reply from 127.0.0.1: bytes=32 time<1ms TTL=128 *

* Reply from 127.0.0.1: bytes=32 time<1ms TTL=128 *

* Reply from 127.0.0.1: bytes=32 time<1ms TTL=128 *

* *

* Ping statistics for 127.0.0.1: *

* Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), *

* Approximate round trip times in milli-seconds: *

* Minimum = 0ms, Maximum = 0ms, Average = 0ms *

* *

\**************************************************************/

.版本 2

.如果 (编辑框1.内容 ≠ “”)

运行 (“cmd /c ping ” ＋ 编辑框1.内容 ＋ “-t” ＋ “ >c:\ping.txt”, 真, #隐藏窗口)

编辑框2.内容 ＝ 到文本 (读入文件 (“c:\ping.txt”))

删除文件 (“c:\ping.txt”)

.否则

.如果结束

是用CMD的保存文件。读取CMD的保存文件。原理就是这样

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