c - 使用 Windows 10 和 C (Visual Studio 2015) 进行套接字编程

Question

我使用 Windows 10 和 C (visual studios 2015) 编写了套接字服务器代码，但我认为绑定(bind)或监听代码是错误的。

当我执行我的代码时，它不会等到客户端连接。打印出“winsock初始化成功”和“创建socket成功”后结束。

请帮帮我

---

#include <stdio.h>
#include <winsock2.h>

int main(int argc, char *argv[]) {

    WSADATA wsaData;

    struct sockaddr_in address_of_server;
    struct sockaddr_in address_of_client;

    int socket_of_client;
    int size_of_address_of_client = sizeof(address_of_client);

    if (WSAStartup(MAKEWORD(2, 2), &wsaData) == 0) {
        printf("winsock initialization success\n");
    }
    else {
        printf("winsock initialization failure\n");
    }

    SOCKET socket_of_server = socket(AF_INET, SOCK_STREAM, 0);

    if (socket_of_server == -1) {
        printf("creating socket failure\n");
    }
    else {
        printf("creating socket success\n");
    }

    memset(&address_of_server, 0, sizeof(address_of_server));
    address_of_server.sin_family = AF_INET;
    address_of_server.sin_addr.s_addr = htonl(INADDR_ANY);
    address_of_server.sin_port = htons(atoi(10000));

    bind(socket_of_server, (struct sockaddr*)&address_of_server, sizeof(address_of_server));

    listen(socket_of_server, 5);

    socket_of_client = accept(socket_of_server, (struct sockaddr*)&address_of_client, &size_of_address_of_client);

    WSACleanup();

}

Answer 1

在 listen() 之后你需要调用 accept() 来获得一个新的连接套接字。 listen() 只是开始监听，并不等待任何客户端连接。