C language implements Scoket communication.

Server-side:

#include <sys/types.h> #include <sys/socket.h>                                                                         Include socket function library # include <stdio.h> #include <netinet/in.h>                                                                          Contains AF_INET related structures # include <arpa/inet.h>                                                            Functions that contain af_inet related operations # include <unistd.h>int main () {int server_sockfd, CLIENT_SOCKFD;                                                                  Used to save server and client socket identifiers int Server_len, Client_len;                                                   Used to save server and customer message length struct sockaddr_in server_address;                                                   Define a server socket address struct sockaddr_in client_address;                     Define the client socket address SERVER_SOCKFD = socket (af_inet, sock_stream, 0);          Defines socket type server_address.sin_family = af_inet;                                       Defines the domain in the socket address server_address.sin_addr.s_addr = inet_addr ("127.0.0.1");                                                              Define socket address Server_address.sin_port = 9734;   Define socket Port Server_len = sizeof (server_address);        Bind (SERVER_SOCKFD, (struct sockaddr *) &server_address, Server_len);                                                                    Defines the socket name listen (SERVER_SOCKFD, 5);      Create socket queue while (1) {char ch;      printf ("Server waits for message \ n");      Client_len = sizeof (client_address); CLIENT_SOCKFD = Accept (SERVER_SOCKFD,//Accept connection (struct sockaddr *) &      Amp;client_address, (socklen_t *__restrict) &client_len);                                                              Read (CLIENT_SOCKFD, &ch, 1);      Read customer message ch++;                                                          Write (CLIENT_SOCKFD, &ch, 1);   Send message to Customer close (CLIENT_SOCKFD); Close Connection}}

Client:

#include <sys/types.h> #include <sys/socket.h>                                                                         Include socket function library # include <stdio.h> #include <netinet/in.h>                                                                          Contains AF_INET related structures # include <arpa/inet.h>                                                                                          Functions that contain af_inet related operations # include <unistd.h>int main () {int sockfd;                                                                                                     Used to save the client socket identifier int len;                                                                  For customer message length struct sockaddr_in address;   Defines the client socket address int result;                                                                                       char ch = ' A ';                                     Defines the message to be transmitted SOCKFD = socket (af_inet,sock_stream, 0);Defines socket type address.sin_family = af_inet;                            Defines the domain in the socket address address.sin_addr.s_addr = inet_addr ("127.0.0.1");                                                                     Define socket address Address.sin_port = 9734;   Define socket Port Len = sizeof (address);                 result = Connect (SOCKFD, (struct sockaddr *) &address, Len);      Request Connection if (result = =-1) {perror ("Connection failed");   return 1;                                                                               } write (SOCKFD, &ch, 1);                                                                                Sending messages to the server read (SOCKFD, &ch, 1);   Receive messages from the server printf ("Message from the server is%c\n", ch);                                                                                       Close (SOCKFD); Close connection return 0;}

C language implements Scoket communication.