网络上的 C++ 命名管道无效名称错误

Question

我正在尝试通过命名管道在两台 Windows 电脑之间发送消息。在本地调用 CreateNamedPipe 时一切正常。如果我将主机名从 "\\\\.\\pipe\\testpipename" 更改为 "\\\\myHostname\\pipe\\testpipename" 我得到一个ERROR_INVALID_NAME(123) 来自 getLastError()。

这是我的代码:

    BOOL   fConnected = FALSE;
    DWORD  dwThreadId = 0;
    HANDLE hPipe = INVALID_HANDLE_VALUE, hThread = NULL;
    LPTSTR pipeName = /*nullptr*/ TEXT("\\\\myHostname\\pipe\\testpipename");

    SECURITY_ATTRIBUTES sa = { 0 };
    SECURITY_DESCRIPTOR sd = { 0 };

    InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION);

    SetSecurityDescriptorDacl(&sd, TRUE, NULL, FALSE);

    sa.bInheritHandle = false;
    sa.lpSecurityDescriptor = &sd;
    sa.nLength = sizeof(sa);

    hPipe = CreateNamedPipe(
    pipeName,                 // pipe name  
    PIPE_ACCESS_DUPLEX,       // read/write access 
    PIPE_TYPE_MESSAGE |       // message type pipe 
    PIPE_READMODE_MESSAGE |   // message-read mode 
    PIPE_WAIT,                // blocking mode 
    PIPE_UNLIMITED_INSTANCES, // max. instances  
    255,                      // output buffer size 
    255,                      // input buffer size 
    0,                        // client time-out 
    &sa);                     // default security attribute 

    if (hPipe == INVALID_HANDLE_VALUE)
    {
        cout << GetLastError();
        return -2;
    }

    cout << "Waiting for client to connect!" << endl;

    //waiting for client to connect
    fConnected = ConnectNamedPipe(hPipe, NULL) ?
        TRUE : (GetLastError() == ERROR_PIPE_CONNECTED);

    cout << "Client connected! YEAH" << endl;

我的猜测是管道名称无效，但我不知道为什么。有什么想法吗？

Answer 1

问题解决了!服务器和客户端的管道名称是:

Server: "\\\\.\\pipe\\testpipe"
Client: "\\\\serverHostName\\pipe\\testpipe"

客户端也做了一些小改动。完整代码可以在 my Github repo 找到.