socket operation on non socket

describes the three-time handshake creation process of TCP in the socket and the socket function involved. Now that we introduce the four-time handshake in the socket to release the connection, see:Figure 2, TCP four-time handshake sent in socketThe process is as follows: An application process first calls close to actively close the connection, when TC

process the user's connection. $commonProtocol = Getprotobyname ("TCP");$socket = Socket_create (Af_inet, Sock_stream, $commonProtocol);Socket_bind ($socket, ' localhost ', 1337);Socket_listen ($socket);Accept any incoming connections to the server$connection = Socket_accept ($socket);if ($connection) {Socket_write (

the first example. You need to listen to a specified socket and process user connections.$ Commonprotocol = getprotobyname ("TCP ");$ Socket = socket_create (af_inet, sock_stream, $ commonprotocol );Socket_bind ($ socket, 'localhost', 1337 );Socket_listen ($ socket );// Accept any incoming connections to the server$ C

1: 2: ". /lib/unpsunyj.h "3: 4: Main (argc * *argv)5: {6: {7: s;8: Char C [sizeof(short)];9: un;Ten: One : un. = 0x0103;: std::un. std::Endl;: printf ("%s:"cpu_vendor_os);: (sizeof (short) = = 2): { :(un. Cun. C [1] = = 3): printf ("big-endian\n"); :(un. Cun. C [1] = = 1): printf ("little-endian\n")

returns at the second time of the three handshake, while the server-side accept returns for the third time on the three handshake. 5, the socket in TCP Four handshake release connection detailed This paper introduces the process of three handshake of TCP in socket and the socket function involved. Now we introduce the process of the four handshake release connec

Socket...\n\r"); } ? You should use your command prompt to run this example. The reason is because there will be a server, not a Web page. If you try to run the script using a Web browser, it is likely that it will exceed the 30-second limit. You can use the following code to set an unlimited run time, but it is recommended that you run it using the command prompt. set_time_limi

. Show (me ); ShowMsg (point + "connection successful! "); CboIpPort. Items. Add (point ); Dic. Add (point, tSocket ); // Receives the message Thread th = new Thread (ReceiveMsg ); Th. IsBackground = true; Th. Start (tSocket ); } Catch (Exception ex) { ShowMsg (ex. Message ); Break; } } } // Receives the message Void ReceiveMsg (object o) { Socket client = o as Socket; While (true) { // Receives the data se

transfer Socket */struct sockaddr_in my_addr; /* Native Address information */struct sockaddr_in remote_addr; /* Client Address information */if ((SOCKFD = socket (af_inet, sock_stream, 0)) = = = 1) {Perror ("Socket creation Error! "); Exit (1);}My_addr.sin_family=af_inet;My_addr.sin_port=htons (Servport);MY_ADDR.SIN_ADDR.S_ADDR = Inaddr_any;Bzero ( (My_addr.sin

. Now that we introduce the four-time handshake in the socket to release the connection, see:Figure 2, TCP four-time handshake sent in socketThe process is as follows: An application process first calls close to actively close the connection, when TCP sends a FIN M; After the other end receives fin m, perform a passive shutdown to confirm the fin. Its reception is also passed as a file terminator to the application process, because the re

passive shutdown to confirm the FIN. Its receipt is also passed to the application process as a file Terminator, because the receiving of FIN means that the application process can no longer receive additional data on the corresponding connection;After a period of time, the application process receiving the file Terminator calls close to close its socket. As a result, TCP also sends a fin n;The source send

: BOOL PASCAL far closesocket (SOCKET s); parameter s the socket descriptor to be closed. If no error occurs, closesocket () returns 0. Otherwise the return value is Socket_error. These are some of the common API functions of the socket API, the following is a piece of code: Client code: #include #include #pragma comment (lib, "Ws2_32.lib") int main () { int

-ano to check the port status. my port number is Port 1935. Check that the port is already in the LISTENING status. Next, we only need to run the client program to connect. Code on ";}While ($ out = socket_read ($ socket, 8192) {echo" received the server's return message! \ N "; echo" accept the following content: ", $ out;} echo" close SOCKET... \

connection is established. Summary: The client's connect returns in the second time of the three handshake, while the server-side accept is returned for the third time in the three-time handshake. 5, the socket TCP Four handshake release connection detailedThe above describes the three-time handshake creation process of TCP in the socket and the socket