Winsock通过recv（）接收随机字母>> [

Question

我正在尝试进行Winsock聊天。我想发送位于2个“标签”之间的数据包。有点像“ ^^^ TAG ^^^

分组数据

^^^ TAG ^^^”问题是，我正在使用的客户端应用程序，包括我编写的我自己的客户端应用程序，要么发送错误消息，要么我的服务器应用程序接收到错误的数据

这是我的意思：

Using Hercules TCP Client

Using my own Client

我知道为什么将其拆分，这就是我的Tag思想的目的，但是，如果您阅读了我发送的内容和得到的内容，将会看到添加和替换的字母。在某个时候，我什至得到了我发送的单词，然后是“ =================================，然后是其他随机的unicode字符，但我无法再次将其截屏。

由于我离开互联网的大多数TCP客户端均无法正常工作，我认为问题在于如何接收数据包，而不是我和其他程序如何发送它们

我的代码：

这是我的代码的重写后的简单版本

struct client_info
{
    SOCKET sock;
    const char* ip;
    int port;
};

struct server_info
{
    SOCKET sock;
    const char* ip;
    int port;
    std::vector<client_info> clients;
    int client_count;

    HANDLE connection_handler;
    HANDLE recv_handler;
};

struct param_info
{
    void* server_info_pointer;
};

class my_server
{
public:
    my_server(const char* ip, int port)
    {
        this->m_info.ip = ip;
        this->m_info.port = port;

        this->start();
        this->client_handler();
        this->recv_packet();
    }
    ~my_server(void)
    {

    }
private:
    server_info m_info;

    bool start(void)
    {
        WSADATA lpWsaData = decltype(lpWsaData){};

        WSAStartup(MAKEWORD(2, 2), &lpWsaData);
        this->m_info.sock = socket(AF_INET, SOCK_STREAM, 0);

        sockaddr_in lpAddr = decltype(lpAddr){};
        lpAddr.sin_family = AF_INET;
        lpAddr.sin_addr.S_un.S_addr = inet_addr(this->m_info.ip);
        lpAddr.sin_port = htons(this->m_info.port);

        char chOption = 1;
        setsockopt(this->m_info.sock, SOL_SOCKET, SO_REUSEADDR, &chOption, sizeof(chOption));
        setsockopt(this->m_info.sock, IPPROTO_TCP, TCP_NODELAY, &chOption, sizeof(chOption));

        if (!bind(this->m_info.sock, reinterpret_cast<sockaddr*>(&lpAddr), sizeof(lpAddr)))
        {
            return true;
        }

        closesocket(this->m_info.sock);
        WSACleanup();
        return false;
    }

    bool client_handler(void)
    {
        param_info pi = param_info{};
        pi.server_info_pointer = &this->m_info;

        if (this->m_info.connection_handler = CreateThread(nullptr, 0, reinterpret_cast<LPTHREAD_START_ROUTINE>
            (this->client_handler_internal), &pi, 0, nullptr))
        {
            return true;
        }

        return false;
    }

    static void client_handler_internal(void* param)
    {
        auto pi = reinterpret_cast<param_info*>(param);

        if (!listen(reinterpret_cast<server_info*>(pi->server_info_pointer)->sock, SOMAXCONN))
        {
            client_info ci = client_info{};

            sockaddr_in lpAddr;
            int dAddrSize = sizeof(lpAddr);

            while (ci.sock = accept(reinterpret_cast<server_info*>(pi->server_info_pointer)->sock, reinterpret_cast<sockaddr*>(&lpAddr), &dAddrSize))
            {
                ci.ip = inet_ntoa(lpAddr.sin_addr);
                ci.port = htons(lpAddr.sin_port);

                printf("%s:%d joined!\n", ci.ip, ci.port);

                reinterpret_cast<server_info*>(pi->server_info_pointer)->clients.push_back(ci);

                memset(&ci, 0, sizeof(ci));
                Sleep(100);
            }
        }

        return;
    }

    auto __forceinline recv_packet(void) -> bool
    {
        param_info pi = param_info{};
        pi.server_info_pointer = &this->m_info;

        if (this->m_info.recv_handler = CreateThread(nullptr, 0, reinterpret_cast<LPTHREAD_START_ROUTINE>
            (this->recv_packet_internal), &pi, 0, nullptr))
        {
            return true;
        }

        return false;
    }

    static void recv_packet_internal(void* param)
    {
        auto pi = reinterpret_cast<param_info*>(param);

        for (;;)
        {
            for (int i = 0; i < reinterpret_cast<server_info*>(pi->server_info_pointer)->clients.size(); ++i)
            {
                char * lpBuffer = new char[64];
                if (0 < recv(reinterpret_cast<server_info*>(pi->server_info_pointer)->clients.at(i).sock, lpBuffer, sizeof(lpBuffer), 0))
                {
                    std::string lpNewBuffer = lpBuffer;
                    printf("%s\n", lpNewBuffer.c_str());
                }

                memset(lpBuffer, 0, sizeof(lpBuffer));
            }

            Sleep(50);
        }

        return;
    }
};

我正在尝试进行Winsock聊天。我想发送位于2个“标签”之间的数据包。有点像“ ^^^ TAG ^^^分组数据^^^ TAG ^^^”问题是，我正在使用的客户端应用程序，包括我自己的客户端...

Answer 1

if (0 < recv(reinterpret_cast<server_info*>(pi->server_info_pointer)->clients.at(i).sock, lpBuffer, sizeof(lpBuffer), 0))