Created
July 25, 2019 08:22
-
-
Save dhb52/e7265c328fffbab350c6a68bda553e82 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| /** | |
| * url:https://blog.csdn.net/what951006/article/details/73695117 | |
| */ | |
| #include <Winsock2.h> | |
| #include "iphlpapi.h" | |
| #include <iostream> | |
| using namespace std; | |
| #pragma comment(lib,"Iphlpapi.lib") | |
| #pragma comment(lib,"Ws2_32.lib") | |
| typedef HANDLE (WINAPI* ICMPCREATEFILE)(VOID); | |
| typedef BOOL (WINAPI* ICMPCLOSEHANDLE)(HANDLE); | |
| typedef DWORD (WINAPI* ICMPSENDECHO)(HANDLE, DWORD, LPVOID, WORD,PIP_OPTION_INFORMATION, LPVOID, DWORD, DWORD); | |
| //定义三个指针函数 | |
| ICMPCREATEFILE pIcmpCreateFile; | |
| ICMPCLOSEHANDLE pIcmpCloseHandle; | |
| ICMPSENDECHO pIcmpSendEcho; | |
| // 函数功能：初始化ICMP函数： | |
| BOOL InitIcmp() | |
| { | |
| HINSTANCE hIcmp = LoadLibrary("ICMP.DLL"); | |
| if(hIcmp==NULL) | |
| { | |
| return false; | |
| } | |
| pIcmpCreateFile = (ICMPCREATEFILE)GetProcAddress(hIcmp,"IcmpCreateFile"); | |
| pIcmpCloseHandle = (ICMPCLOSEHANDLE)GetProcAddress(hIcmp,"IcmpCloseHandle"); | |
| pIcmpSendEcho = (ICMPSENDECHO)GetProcAddress(hIcmp,"IcmpSendEcho"); | |
| if ((pIcmpCreateFile == NULL)||(pIcmpCloseHandle == NULL)||(pIcmpSendEcho == NULL)) | |
| return false; | |
| return true; | |
| } | |
| // 函数功能：判断是否能ping通IP | |
| // 函数参数：IP地址或域名 | |
| BOOL ICMPPing(char* host) | |
| { | |
| DWORD timeOut=1000; //设置超时 | |
| ULONG hAddr=inet_addr(host); //如果是IP地址就直接转换 | |
| if(hAddr==INADDR_NONE) | |
| { | |
| hostent* hp=gethostbyname(host); //如果是域名就用DNS解析出IP地址 | |
| if(hp) | |
| memcpy(&hAddr,hp->h_addr_list,hp->h_length); //IP地址 | |
| else | |
| { | |
| return false; | |
| } | |
| } | |
| HANDLE hIp=pIcmpCreateFile(); | |
| IP_OPTION_INFORMATION ipoi; | |
| memset(&ipoi,0,sizeof(IP_OPTION_INFORMATION)); | |
| ipoi.Ttl =128; //Time-To-Live | |
| unsigned char pSend[36]; //发送包 | |
| memset(pSend,'E',32); | |
| int repSize=sizeof(ICMP_ECHO_REPLY)+32; | |
| unsigned char pReply[100]; //接收包 | |
| ICMP_ECHO_REPLY* pEchoReply=(ICMP_ECHO_REPLY*)pReply; | |
| DWORD nPackets=pIcmpSendEcho(hIp,hAddr,pSend,32,&ipoi,pReply,repSize,timeOut); //发送ICMP数据报文 | |
| if(pEchoReply->Status!=0) //超时，可能是主机禁用了ICMP 或者目标主机不存在 | |
| { | |
| pIcmpCloseHandle(hIp); | |
| return false; | |
| } | |
| pIcmpCloseHandle(hIp); | |
| return true; | |
| } | |
| int main() | |
| { | |
| InitIcmp(); | |
| cout<<ICMPPing("192.168.1.50"); | |
| return 0; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment