Simple client server communication model under Linux (TCP)

Original: Linux simple client server communication model (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/inch.h>#defineServerPort 6080#defineMaxuser 8typedefstruct_server{intsock_fd; intnew_fd; structsockaddr_in my_addr;} Server;typedefstruct_client{intsock_fd; structsockaddr_in my_addr;} Client;StaticServer *server;StaticClient *client;voidSocket_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 (& (Server-My_addr.sin_zero),8);}intSocket_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, (structSOCKADDR *) &serverMy_addr,sizeof(structSOCKADDR)) ==-1) {perror ("failed to bind \ n"); return-1; }    if(Listen (server-Sock_fd,maxuser) ==-1) {perror ("failed to listen \ n"); return-1; }        return 1;}voidServer_send_msg (intFD) {    Charbuff[1024x768];  while(1) {fgets (buff,1024x768, stdin); if(Send (Fd,buff,1024x768,0)==-1) {perror ("error to send:");  Break; }    }}voidServer_wait_service (Server *server,client *client) {    intnew_fd, Ret,sin_size; Charbuf[1024x768];    pthread_t Tid; Sin_size=sizeof(Client-my_addr); NEW_FD= Accept (Server-&GT;SOCK_FD, (structSOCKADDR *) &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"); }         while(1){            if(Recv (New_fd,buf,sizeof(BUF),0) >0) {printf ("\nclient said:\t\t%s\n", BUF); }        }    }}intMainintArgChar*argv[]) {Server= (Server *) malloc (sizeof(Server)); Client= (Client *) malloc (sizeof(Client));    Socket_server_init (server); if(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>#defineServerPort 6080typedefstruct_server{intsock_fd; intnew_fd; structsockaddr_in my_addr;} Server;typedefstruct_client{intsock_fd; structsockaddr_in my_addr;} Client; Server*server; Client*client;voidSocket_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 (& (Server-My_addr.sin_zero),8);}voidSocket_client_init (Client *client) {Client-my_addr.sin_family =af_inet; Client-My_addr.sin_port = htons (serverport+Ten); Client-MY_ADDR.SIN_ADDR.S_ADDR =Inaddr_any; Bzero (& (Client-My_addr.sin_zero),8);}intSocket_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; }        Else if(Connect (client-sock_fd, (structSOCKADDR *) &serverMy_addr,sizeof(server->my_addr)) ==-1) {printf ("failed to connect the server \ n"); return-1; }Else    return 1;}voidClient_recv_msg (Client *client) {    Charbuf[1024x768];  while(1){        if(Recv (Client->sock_fd,buf,sizeof(BUF),0) >0) {printf ("\nserver said: \t\t%s\n", BUF); }Else  Break; }}intMainintargcChar*argv[]) {Server= (Server *) malloc (sizeof(Server)); Client= (Client *) malloc (sizeof(Client)); Chardata[1024x768];        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    -o server Server.c-pthreadclient:    client.c     -O client client.c-Pthreadclean    :-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)