通过调用gethostbyname 系统函数进行解析 void GetHostNamebyIp(char* hostName){if(NULL == hostName){return;}int WSA_return = 0; WSADATA WSAData;HOSTENT *host_entry;char szIP[1024] = {0};AfxMessageBox(hostName);WSA_return=WSAStartup
通过调用gethostbyname 系统函数进行解析
void GetHostNamebyIp(char* hostName) { if(NULL == hostName) { return; } int WSA_return = 0; WSADATA WSAData; HOSTENT *host_entry; char szIP[1024] = {0}; AfxMessageBox(hostName); WSA_return=WSAStartup(0x0202,&WSAData); if(0 == WSA_return) { host_entry = gethostbyname(hostName); if(0 != host_entry) { char** ipAddress = host_entry->h_addr_list; for(; *ipAddress != NULL; ipAddress++) { strcpy(szIP,inet_ntoa(*(LPIN_ADDR)*(ipAddress))); WriteIPFile("ip.txt",hostName ,szIP); } } } }
将解析出来的ip地址写入到文件中
//写文件,第一个参数文件名,第二个参数hostName,第三个参数文件内容 void WriteIPFile(char* FileName, char* hostName, char* text) { HANDLE hFILE=CreateFile(FileName,GENERIC_WRITE,FILE_SHARE_READ,NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL); if(hFILE==INVALID_HANDLE_VALUE) { //文件创建失败 return; } if(SetFilePointer(hFILE,0,NULL,FILE_END)==-1) { printf("SetFilePointer error\n"); return ; } DWORD dwhostWrite; if(!WriteFile(hFILE,hostName,strlen(hostName),&dwhostWrite,NULL)) { printf("WriteFile error\n"); return ; } if(!WriteFile(hFILE,"\r\n",2,&dwhostWrite,NULL)) { printf("WriteFile error\n"); return ; } DWORD dwWrite; if(!WriteFile(hFILE,text,strlen(text),&dwWrite,NULL)) { printf("WriteFile error\n"); return ; } if(!WriteFile(hFILE,"\r\n",2,&dwWrite,NULL)) { printf("WriteFile error\n"); return ; } CloseHandle(hFILE); }
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