Simple client server communication model under Linux (TCP)

Server side: SERVER.C

#include <stdio.h>#include <stdlib.h>#include <errno.h>#include <String.h>#include <sys/socket.h>#include <sys/types.h>#include <stdio.h>#include <unistd.h>#include <netdb.h>#include <netinet/In.h>#define ServerPort 6080#define MAXUSER 8typedefstruct_server{IntSOCK_FD;IntNEW_FD;structSockaddr_in my_addr;} Server;typedefstruct_client{IntSOCK_FD;structSockaddr_in my_addr;} Client;Static Server *ServerStatic Client *Clientvoid Socket_server_init (Server *Server) {server-my_addr.sin_family =Af_inet; Server-My_addr.sin_port =Htons (ServerPort); Server-my_addr.sin_addr.s_addr =Inaddr_any; Bzero (& My_addr.sin_zero),8);}int Socket_server_create_bind_listen (SERVER *Server) {IntSin_size,ret, on;if (server-SOCK_FD = socket (Af_inet,sock_stream,0)) = =-1) {perror ("Faild to create socket: \ n");Return-1; } on =1; RET = setsockopt (Server-SOCK_FD, Sol_socket, SO_REUSEADDR, &on,sizeof(on));if (Ret=bind (server-SOCK_FD, (struct sockaddr *) &serverMY_ADDR,sizeofstruct sockaddr)) ==-1) {perror ("Failed to bind \ n");Return-1; }if (Listen (server-Sock_fd,maxuser) ==-1) {perror ("Failed to listen \ n");Return-1; }Return1;}void Server_send_msg (IntFD) {Char buff[1024];While1) {fgets (buff,1024, stdin);if (Send (Fd,buff,1024,0) ==-1) {perror ("Error to send:");Break; } }}void Server_wait_service (Server *server,client *Client) {IntNEW_FD, Ret,sin_size;Char buf[1024]; pthread_t Tid; Sin_size =sizeof (Client-MY_ADDR); NEW_FD = Accept (Server-&GT;SOCK_FD, (struct sockaddr *) &client->my_addr,&Sin_size);if (new_fd <=0) {perror ("Accept Error:"); }Else{ret = Pthread_create (&TID,NULL,SERVER_SEND_MSG,NEW_FD);if (ret!=0) {perror ("Error to create Pthread"); }While1){if (recv (New_fd,buf,sizeof (BUF),0) >0 "\nclient said:\t\t%s\n ",buf);}}} int Main (int Arg, char *  argv[]) {Server = (server *) malloc (sizeofsizeofif (Socket_server_create_bind_listen (server)) { Server_wait_service (server,client); } return 0   

Client code: CLIENT.C

#include <stdio.h>#include <stdlib.h>#include <errno.h>#include <String.h>#include <sys/socket.h>#include <sys/types.h>#include <stdio.h>#include <netdb.h>#define ServerPort 6080typedefstruct_server{IntSOCK_FD;IntNEW_FD;structSockaddr_in my_addr;} Server;typedefstruct_client{IntSOCK_FD;structSockaddr_in my_addr;} Client; Server *Server Client *Clientvoid Socket_server_init (Server *Server) {server-my_addr.sin_family =Af_inet; Server-My_addr.sin_port =Htons (ServerPort); Server-my_addr.sin_addr.s_addr =Inaddr_any; Bzero (& My_addr.sin_zero),8);}void Socket_client_init (Client *Client) {client-my_addr.sin_family =Af_inet; Client-My_addr.sin_port = htons (serverport+10); Client-my_addr.sin_addr.s_addr =Inaddr_any; Bzero (& (My_addr.sin_zero, client),8);}int Socket_client_create_connect (Server * server,client *Client) {if (client-SOCK_FD = socket (Af_inet,sock_stream,0)) = =-1) {perror ("Failed to create client socket \ n");Return-1; }ElseIf (Connect client,SOCK_FD, (struct sockaddr *) &serverMY_ADDR,sizeof (server->my_addr)) ==-1) {printf ("Failed to connect the server \ n");Return-1; }ElseReturn1;}void client_recv_msg (Client *Client) {Char buf[1024];While1){if (recv (Client->sock_fd,buf,sizeof (BUF),0) >0) {printf ("\nserver said: \t\t%s\n", buf); }ElseBreak; }}int main (int argc,char*Argv[]) {Server = (server *) malloc (sizeof(Server)); Client = (client *) malloc (sizeof(Client));Char data[1024]; Socket_server_init (server); Socket_client_init (client); pthread_t Tid;If(Socket_client_create_connect (server,client)) {Pthread_create (&tid, null,client_recv_msg, client); while (1) {fgets (data,1024x768, stdin); if (send (Client->sock_fd,data,1024x768,0) ==-1) {perror ("error to send:"); break;}} } return 0;}                

Makefile:

All:    server clientserver:    server.c    gcc-o Server server.c-pthreadclient:    client.c    Gcc-o Client Client.c-pthreadclean:    rm-f Server Client 

Execution effect:

Server

[Email protected]:/mnt/hgfs/e/lessons/Personal summary/chat#./server

Client Said:hello

Hehe

Client Said:g

Client Said:goodbay

Client

[Email protected]:/mnt/hgfs/e/lessons/Personal summary/chat#./client
Hello

Server Said:hehe

S^hg
Goodbay

Last year's code, make a backup.

Simple client server communication model under Linux (TCP)