Socket传送文件

Socket传送文件

这是一对实现在两台计算机间传送文件的函数,我没有看到过使用CSocket进行文件传送的代码,希望此代码对你有用.代码中包含两个函数,第一个用于服务器端,第二个用于客户端. 需要说明的是本文提供的方法并不适用于大型文件的传送.

下面给出服务器端代码:void SendFile()

{

#define PORT 34000 /// Select any free port you wish

AfxSocketInit(NULL);

CSocket sockSrvr;

sockSrvr.Create(PORT); // Creates our server socket

sockSrvr.Listen(); // Start listening for the client at PORT

CSocket sockRecv;

sockSrvr.Accept(sockRecv); // Use another CSocket to accept the connection

CFile myFile;

myFile.Open("C:\\ANYFILE.EXE", CFile::modeRead | CFile::typeBinary);

int myFileLength = myFile.GetLength(); // Going to send the correct File Size

sockRecv.Send(&myFileLength, 4); // 4 bytes long

byte* data = new byte[myFileLength];

myFile.Read(data, myFileLength);

sockRecv.Send(data, myFileLength); //Send the whole thing now

myFile.Close();

delete data;

sockRecv.Close();

}

以下是客户端代码void GetFile()

{

#define PORT 34000 /// Select any free port you wish

AfxSocketInit(NULL);

CSocket sockClient;

sockClient.Create();

// "127.0.0.1" is the IP to your server, same port

sockClient.Connect("127.0.0.1", PORT);

int dataLength;

sockClient.Receive(&dataLength, 4); //Now we get the File Size first

byte* data = new byte[dataLength];

sockClient.Receive(data, dataLength); //Get the whole thing

CFile destFile("C:\\temp\\ANYFILE.EXE",

CFile::modeCreate | CFile::modeWrite | CFile::typeBinary); destFile.Write(data, dataLength); // Write it

destFile.Close();

delete data;

sockClient.Close();

}