我正在尝试在本机应用程序和托管应用程序之间进行通信，我正在使用 NamedPipe。我首先尝试使用 C++ 创建和打开命名管道，但我遇到了安全错误
SECURITY_ATTRIBUTES sa;
sa.lpSecurityDescriptor = (PSECURITY_DESCRIPTOR)malloc(SECURITY_DESCRIPTOR_MIN_LENGTH);
if (!InitializeSecurityDescriptor(sa.lpSecurityDescriptor, SECURITY_DESCRIPTOR_REVISION))
{
DWORD er = ::GetLastError();
}
if (!SetSecurityDescriptorDacl(sa.lpSecurityDescriptor, TRUE, (PACL)0, FALSE))
{
DWORD er = ::GetLastError();
}
sa.nLength = sizeof sa;
sa.bInheritHandle = TRUE;
// To know the maximal size of the received data for reading from the // pipe buffer
union maxSize
{
UINT _1;
};
_pipe = ::CreateNamedPipe(pipeName.c_str(), PIPE_ACCESS_INBOUND,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES,
sizeof maxSize,
sizeof maxSize,
NMPWAIT_USE_DEFAULT_WAIT,
&sa);
if (_pipe == INVALID_HANDLE_VALUE)
{
DWORD dwError = ::GetLastError();
}
cout<<"Connected to Pipe"<<endl;
auto pipe = CreateFile(
pipeName.c_str(), // pipe name
GENERIC_READ | GENERIC_WRITE , // read and write access
0, // no sharing
&sa, // default security attributes
OPEN_EXISTING, // opens existing pipe
0, // default attributes
NULL); // no template file
if (pipe == INVALID_HANDLE_VALUE)
{
DWORD dwError = ::GetLastError();
cout<<"Failed to open Pipe "<<dwError<<endl;
}