Question

以下是代码：

int main(int argc, char **argv)
{
    int listener_socket, new_socket;
    struct sockaddr_in server_address;
    pthread_t player_queue_processing;
    pthread_attr_t attr;
    Network_Code wait_message = WAIT;
    Network_Code incoming_message;

    if(pthread_attr_init(&attr) != 0){
        perror("Error initializing thread attributes");
        return 1;
    }

    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
    if(pthread_create(&player_queue_processing, &attr, run, NULL) != 0){
        perror("Error creating thread");
        return 1;
    }

    if((listener_socket = socket(AF_INET, SOCK_STREAM, 0)) == -1){
        perror("Error creating socket");
        return 1;
    }

    if((player_queue = qu_allocate()) == NULL){
        perror("Error creating player queue");
        return 1;
    }

    memset(&server_address, 0, sizeof server_address);

    server_address.sin_family = AF_INET;
    server_address.sin_addr.s_addr = INADDR_ANY;
    server_address.sin_port = htons(449);

    printf("Listening on port: %d\n", ntohs(server_address.sin_port));

    bind(listener_socket, (struct sockaddr*)&server_address, sizeof server_address);

    if(listen(listener_socket, BACKLOG) == -1){
        perror("Listen");
        return 1;
    }

    while(1){
        new_socket = accept(listener_socket, (struct sockaddr*)NULL, NULL);

        read(new_socket, &incoming_message, sizeof incoming_message);

        if(incoming_message != I_WANT_TO_PLAY){
            close(new_socket);
            continue;
        }

        write(new_socket, &wait_message, sizeof wait_message);

        if(qu_enqueue(player_queue, (void *)(size_t)new_socket) == QU_ERROR)
            perror("Error enqueuing player");
    }
}

netstat -tulpn

报告了什么

tcp        0      0 0.0.0.0:48577           0.0.0.0:*               LISTEN

当客户端使用端口48577时，它可以工作。问题是服务器绑定在错误的端口上，即使我正在调用htons()。为什么会这样？

每次端口更改时，我都会重启多次。我正在运行Debian GNU / Linux jessie / sid 64位

错误端口上的Linux套接字绑定

0 个答案: