TCP协议网络编程实例讲课教案.doc

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1、__________________________________________________服务器端程序CODE: [Copytoclipboard] --------------------------------------------------------------------------------/*******服务器程序 (server.c)************/ #include #include #include #in

2、clude #include #include #include #include #include #includeintmain(intargc,char*argv[]) {        intsockfd,new_fd;        structsockaddr_inserver_addr;        structsockaddr

3、_in____________________________________________________________________________________________________client_addr;        intsin_size,portnumber;        charhello[]="Hello!AreYouFine?";       if(argc!=2)        {                fprintf(stderr,"Usage:%sp

4、ortnumbera",argv[0]);                exit(1);        }       if((portnumber=atoi(argv[1]))<0)        {                fprintf(stderr,"Usage:%sportnumbera",argv[0]);                exit(1);        }       /*服务器端开始建立socket描述符*/        if((sockfd=socket

5、(AF_INET,SOCK_STREAM,0))==-1)         {                ____________________________________________________________________________________________________fprintf(stderr,"Socketerror:%sa",strerror(errno));                exit(1);        }       /*服务器端填充

6、sockaddr结构 */        bzero(&server_addr,sizeof(structsockaddr_in));        server_addr.sin_family=AF_INET;        server_addr.sin_addr.s_addr=htonl(INADDR_ANY);        server_addr.sin_port=htons(portnumber);       /*捆绑sockfd描述符 */        if(bind(sockfd,(st

7、ructsockaddr*)(&server_addr),sizeof(structsockaddr))==-1)        {                fprintf(stderr,"Binderror:%sa",strerror(errno));                exit(1);        }__________________________________________________________________________________________

8、__________       /*监听sockfd描述符 */        if(listen(sockfd,5)==-1)        {                fprintf(stderr,"Listenerror:%sa",strerror(errno));                exit(1);        }       while(1)        {