VC中小弟我用socket创建套接字传输文件。但是只能传输txt文件。请教怎样让其传输任意格式的文件

// fasong.cpp : Defines the entry point for the console application.// The one and only application object

CWinApp theApp;

using namespace std;

void SendFile(LPCTSTR strFilename)

{

AfxSocketInit(NULL); //BOOL AfxSocketInit( WSADATA* lpwsaData = NULL ); 加载套接字库

CSocket sockSrvr; 

sockSrvr.Create(800); 

sockSrvr.Listen(); 

CSocket sockRecv;

sockSrvr.Accept(sockRecv);

CFile myFile; 

if(!myFile.Open(strFilename, CFile::modeRead | CFile::typeBinary))

return;

int myFileLength = myFile.GetLength(); 

sockRecv.Send(&myFileLength, 4); byte* data = new byte[myFileLength]; 

myFile.Read(data, myFileLength); //1024

int iRet ; 

iRet = sockRecv.Send(data, myFileLength); 

cout << "包含字节数 = " << iRet << endl;

cout << " 发送文件结束 " << endl;

myFile.Close(); delete data;

sockSrvr.Close();}

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])

{

int nRetCode = 0;

// initialize MFC and print and error on failure

if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))

{

// TODO: change error code to suit your needs

cerr << _T("Fatal Error: MFC initialization failed") << endl;

nRetCode = 1;

}

else

{

// TODO: code your application's behavior here.

//SendFile("C:\\autoexec.bat");




cout << "开始发送文件" << endl;

SendFile("G:\\123.docx");

getchar();


}

return nRetCode;

}

 

// kefu.cpp : Defines the entry point for the console application.//

 

CWinApp theApp;using namespace std;//#define PORT 34000void GetFile(LPCTSTR strFilename) 

{AfxSocketInit(NULL);CSocket sockkefu; sockkefu.Create(); sockkefu.Connect("127.0.0.1",800); 

int dataLength; 

sockkefu.Receive(&dataLength, 4);byte* data = new byte[dataLength];sockkefu.Receive(data, dataLength); //然后开始下载文件 

CFile destFile(strFilename, CFile::modeCreate | CFile::modeWrite | CFile::typeBinary);destFile.Write(data, dataLength); //写入数据destFile.Close();cout << "接受数据完成" << endl;delete data; sockkefu.Close();} 

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]){int nRetCode = 0; 

// initialize MFC and print and error on failure 

if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0)){// TODO: change error code to suit your needscerr << _T("Fatal Error: MFC initialization failed") << endl;nRetCode = 1;}else{// TODO: code your application's behavior here.cout << " 开始接受数据 " << endl;GetFile("G:\\123copy.docx");return nRetCode;} 

return nRetCode;}