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windows - win32 套接字绑定函数失败，错误 10014 c++

问题描述

我正在尝试在我的机器上运行一个 tcp 服务器，这主要是一个教程代码，但由于某种原因，绑定失败并出现错误 10014。如果有人感兴趣，sizeof(serverAddr) 在下面的代码中返回 16。我知道错误 10014 是什么意思，但似乎无法弄清楚为什么它会在绑定时出现在此处，一切似乎都正常。

#include <iostream>
#include <winsock2.h>
#pragma comment(lib,"Ws2_32.lib")


int main()
{
    WSADATA WSAData;

    SOCKET server, client;

    SOCKADDR_IN serverAddr, clientAddr;

    int iResult = WSAStartup(MAKEWORD(2, 2), &WSAData);
    if (iResult != NO_ERROR) {
        std::cout << "startup error" << std::endl;
        return 1;
    }
    server = socket(AF_INET, SOCK_STREAM, 0);

    serverAddr.sin_addr.s_addr = INADDR_ANY;
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_port = htons(5555);


    if (bind(server, (SOCKADDR*)&serverAddr, sizeof(serverAddr) != 0))
    {
        std::cout << "bind " << WSAGetLastError() << " sizeof " << sizeof(serverAddr) << std::endl;
        std::cout << "cannot start server" << std::endl;
        return 0;
    }
    listen(server, 0);

    std::cout << "Listening for incoming connections..." << std::endl;

    char buffer[1024];
    int clientAddrSize = sizeof(clientAddr);
    if ((client = accept(server, (SOCKADDR*)&clientAddr, &clientAddrSize)) != INVALID_SOCKET)
    {
        std::cout << "Client connected!" << std::endl;
        recv(client, buffer, sizeof(buffer), 0);
        std::cout << "Client says: " << buffer << std::endl;
        memset(buffer, 0, sizeof(buffer));

        closesocket(client);
        std::cout << "Client disconnected." << std::endl;
    }
    return 0;
}

标签： windowssocketsc++11tcp

解决方案

括号有错误。这一行：

if (bind(server, (SOCKADDR*)&serverAddr, sizeof(serverAddr) != 0))

应该是：

if (bind(server, (SOCKADDR*)&serverAddr, sizeof(serverAddr)) != 0)

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