socket operation on non socket

1.TCP Server side: #include #include void Main (){WORD wversionrequested;Wsadata Wsadata;int err;wversionrequested = Makeword (1, 1);Err = WSAStartup (wversionrequested, wsadata);if (Err!= 0) {Return} if (Lobyte (wsadata.wversion)!= 1 | |Hibyte (wsadata.wversion)!= 1) {WSACleanup ();Return}SOCKET Socksrv=socket (af_inet,sock_stream,0); Sockaddr_in addrsrv;Addrsrv.sin_addr. S_un. S_addr=htonl (Inaddr_any);A

This log is to start from a running example, once you can successfully see the successful operation of the program, then the next event I think should be asked why. It seems so much easier to understand and master.The concept of the socket program is not much written here, but I believe that if you can read this whole article, I believe there will be no more such doubts.The following will write a C/s structure of the program, the main function is that

;socket, $this->host, $this->port);if ($this->conn){$this->result_str = "Create socket Connection:". Socket_strerror (Socket_last_error ());$this->debug_show ($this->result_str);}Else{Exit ("Initialization failed, please check your network connections and parameters");}$this->result_str = "Server answer: $this->debug_show ($this->result_str); }function Debug_show ($STR){if ($this->debug){echo $str. " }}func

,recvbuf,50,0);//Accept Client messagesprintf ("%s\n", recvbuf);Closesocket (sockconn);//Disconnect}}Client code#include #include #pragma comment (lib, "Ws2_32.lib")void Main (){WORD wversionrequested;Wsadata Wsadata;//wsaata is used to store the data returned by the system about WinSocket.int err;wversionrequested = Makeword (1, 1);Err = WSAStartup (wversionrequested, wsadata);if (err! = 0) {Return}if (Lobyte (wsadata.wversion)! = 1 | | Hibyte (wsada

ioexception{Server = new serversocket (port, 100 );System. Out. println ("server starting ..");} Private socket responsesocket () throws ioexception{Socket Client = server. Accept ();System. Out. println ("Client Connected ..");Return client;} Private void closesocket (Socket socket) throws ioexception{Reader. Close (

(' Utf-8 ')file_size = Int (SIZE_STR)Conn.sendall (' Start transfer '. Encode (' Utf-8 '))Has_size = 0f = open (' Db_new. JPG ', ' WB ')While True:if file_size = = Has_size:BreakDate = CONN.RECV (1024)F.write (date)Has_size + = len (date)F.close ()‘‘‘Reference: https://www.cnblogs.com/aylin/p/5572104.html "Using Select to implement pseudo simultaneous processing of multiple socket client requests" and "using Select to implement pseudo simultaneous pr

shutting down the virtual machine firewall commands, in my blog mentioned, there is a need to look for. Because I am not very familiar with the socket, some code is not understood, but I test pass is used to write the IP to die. The function used is inet_addr (), when the header file The code is as follows: Service side: /** SEVER.C** Created On:aug 23, 2012* AUTHOR:CYF*/#include #include #include #include #include #include #include #include #includ

= socket_accept ($ socket); // accept a socket connection$ Welcome = "welcome to the php service/n"; // define a stringSocket_write ($ msg, $ welcome, strlen ($ welcome); // write a socketSocket_close ($ socket); // close the socket */ $ Ip = "127.0.0.1"; // define an ip ad

over System. out. println (" There comes a socket! "); BufferedReader in = new BufferedReader (new InputStreamReader (socket. getInputStream (); // input, from client PrintWriter out = new PrintWriter (socket. getOutputStream (); // output, to the client System. out. println (in. readLine (); // print the character sent from the client

happened: % s') % eSys. exit (1)Print ('done ')Print ('sleeping ...')Time. sleep (3)Print ('ing ing ...')Try:S. sendall ('get % s HTTP/1.0 \ r \ n \ r \ n' % filename)Failed t socket. error, e:Print ('here is an error happened: % s') % eSys. exit (1)Try:S. shutdown (1)Failed t socket. error, e:Print ('here is an error

->h_addr_list[0]; Set the socket parameters//struct sockaddr_in socketparameters; socketparameters.sin_family = af_inet; SOCKETPARAMETERS.SIN_ADDR = *remoteinaddr; Socketparameters.sin_port = htons ([port Intvalue]); Connect the socket//INT ret =Connect(Socketfiledescriptor, (struct sockaddr *) socketparameters, sizeof (socketparameters)); if ( -1 = = ret) {close (socketfilede

the thread connected to the client. The ServiceClient () function is as follows: Private void ServiceClient (){Socket client = clientsocket;Bool keepalive = true;While (keepalive){Byte [] buffer = new Byte [1024];Client. Receive (buffer );String clientcommand = System. Text. Encoding. ASCII. GetString (buffer );String [] tokens = clientcommand. Split (new Char [] {'| '});Console. WriteLine (clientcommand );If

gone command can set the Boolean variable keepalive to false to end the thread connected to the client. The serviceclient () function is as follows: Private void serviceclient (){Socket Client = clientsocket;Bool keepalive = true; While (keepalive){Byte [] Buffer= New byte [2, 1024];Client. Receive (buffer );String clientcommand =System. Text. encoding. ASCII. getstring (buffer ); String [] tokens =Clientcommand. Split (New char [] {'| '});Cons

responsesocket () throws ioexception{Socket Client = server. Accept ();System. Out. println ("Client Connected .."); Return client;} Private void closesocket (Socket socket) throws ioexception{Reader. Close ();Writer. Close ();Socket. Close ();System. Out. println ("client closed ..");} Private void sendmsg (