socket网络编程步骤



具体代码实现serv_sockfd =

(AF_INET, SOCK_STREAM, 0);

if (serv_sockfd < 0) {

p

("

");

goto err_

;

}

struct sockaddr_in attr = {

.sin_family = AF_INET,

.sin_port = htons(NET_PORT),

.sin_addr = {

.s_addr = inet_addr(IP_ADDR),

},

};

if(bind(serv_sockfd, (struct sockaddr*)&attr, sizeof(attr)) < 0) {

p

("bind

");

goto err_bind;

}

if (listen(serv_sockfd, 5) < 0) {

p

("listen");

goto err_listen;

}

socklen_t attr_len=sizeof(attr);

int client_sockfd = accept(serv_sockfd,(struct sockaddr*)&attr,&attr_len);

if (client_sockfd < 0) {

p

("accept");

goto err_accept;

}

const char *welcome_banner = "server connected";

write(client_sockfd, welcome_banner, strlen(welcome_banner)+1);

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