zoukankan
html css js c++ java
用Delphi实现Ping类
网络上的一个实现PING功能的类,修改了部分代码。
=======================================
unit ping; interface uses Windows, SysUtils, Classes, Controls, Winsock, StdCtrls; function pingip(ip:string):string; type PIPOptionInformation = ^TIPOptionInformation; TIPOptionInformation = packed record TTL: Byte; TOS: Byte; Flags: Byte; OptionsSize: Byte; OptionsData: PChar; end; PIcmpEchoReply = ^TIcmpEchoReply; TIcmpEchoReply = packed record Address: DWORD; Status: DWORD; RTT: DWORD; DataSize: Word; Reserved: Word; Data: Pointer; Options: TIPOptionInformation; end; TIcmpCreateFile = function: THandle; stdcall; TIcmpCloseHandle = function(IcmpHandle: THandle): Boolean; stdcall; TIcmpSendEcho = function( IcmpHandle:THandle; DestinationAddress: DWORD; RequestData: Pointer; RequestSize: Word; RequestOptions: PIPOptionInformation; ReplyBuffer: Pointer; ReplySize: DWord; Timeout: DWord ): DWord; stdcall; Tping =class(Tobject) private { Private declarations } hICMP: THANDLE; IcmpCreateFile : TIcmpCreateFile; IcmpCloseHandle: TIcmpCloseHandle; IcmpSendEcho: TIcmpSendEcho; public procedure pinghost(ip:string;var info:string); constructor create; destructor destroy;override; { Public declarations } end; var hICMPdll: HMODULE; implementation constructor Tping.create; begin inherited create; hICMPdll := LoadLibrary('icmp.dll'); @ICMPCreateFile := GetProcAddress(hICMPdll, 'IcmpCreateFile'); @IcmpCloseHandle := GetProcAddress(hICMPdll,'IcmpCloseHandle'); @IcmpSendEcho := GetProcAddress(hICMPdll, 'IcmpSendEcho'); hICMP := IcmpCreateFile; end; destructor Tping.destroy; begin FreeLibrary(hIcmpDll); inherited destroy; end; procedure Tping.pinghost(ip:string;var info:string); var // IP Options for packet to send IPOpt:TIPOptionInformation; FIPAddress:DWORD; pReqData,pRevData:PChar; // ICMP Echo reply buffer pIPE:PIcmpEchoReply; FSize: DWORD; MyString:string; FTimeOut:DWORD; BufferSize:DWORD; begin if ip<>'' then begin FIPAddress := inet_addr(PChar(ip)); FSize := 40; BufferSize := SizeOf(TICMPEchoReply) + FSize; GetMem(pRevData,FSize); GetMem(pIPE,BufferSize); FillChar(pIPE^, SizeOf(pIPE^), 0); pIPE^.Data := pRevData; MyString := 'Test Net - Sos Admin'; pReqData := PChar(MyString); FillChar(IPOpt, Sizeof(IPOpt), 0); IPOpt.TTL := 64; FTimeOut := 4000; try IcmpSendEcho(hICMP, FIPAddress, pReqData, Length(MyString),@IPOpt, pIPE, BufferSize, FTimeOut); if pReqData^ = pIPE^.Options.OptionsData^ then info:=ip+ ' ' + IntToStr(pIPE^.DataSize) + ' ' +IntToStr(pIPE^.RTT); except info:='Can not find host!'; FreeMem(pRevData); FreeMem(pIPE); Exit; end; FreeMem(pRevData); FreeMem(pIPE); end; end; function pingip(ip:string):string; var str:string; ping:Tping; begin ping:=Tping.create ;//一定要初试化哦 ping.pinghost('127.0.0.1',str); result:=str; ping.destroy ; end; end.
谢祥选【小宇飞刀(xieyunc)】
查看全文
相关阅读:
linux,windows kettle安装方法
等待事件分类
分析函数详细例子
v$session中不同连接方式module,program的区别
charles Glist发布设置
charles 发布Glist
charles 工具菜单总结
charles 高级批量请求
charles 批量重复请求/重复发包工具
charles 重写工具/rewrite Srttings
原文地址:https://www.cnblogs.com/xieyunc/p/9126662.html
最新文章
解决微信端苹果手机无法跳转页面的问题
搭建后台管理系统
项目优化1
npm init webpack "" 报错
git报错:git pull
JavaScript 浅层克隆和深度克隆
validate.js(常用验证)
爬虫数据解析
爬虫案例
js数组
热门文章
js变量和数据类型
JavaScript入门
flask的小错误
一个神奇的SQL语句
不能自动生成snapshot,不能生成awr
Oracle数据库悲观锁与乐观锁详解
oracle的 listagg() WITHIN GROUP ()函数使用
oracle官方文档阅读方法,怎么看官方文档 图形语法图
监听投毒现象和解决办法
shared pool dump详解
Copyright © 2011-2022 走看看