SOCKET bind INADDR

int sd; struct sockaddr_in serv_addr; serv_addr.sin_family = AF_INET; serv_addr.sin_port = htons(port); serv_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); else serv_addr.sin_addr.s_addr = htonl(INADDR_ANY ); sd = socket(AF_INET, SOCK_STREAM, 0); bind(sd, (struct sockaddr *) &serv_addr, sizeof (serv_addr));

两者的区别 INADDR_ANY是ANY，是绑定地址0.0.0.0上的监听, 能收到任意一块网卡的连接； INADDR_LOOPBACK, 也就是绑定地址LOOPBAC, 往往是127.0.0.1, 只能收到127.0.0.1上面的连接请求

INADDR_LOOPBACK情况：

INADDR_ANY情况：

telnet退出时 ‘ctrl+]’再输入 quit