Question

I am having trouble connecting to a Named Pipe (in this case a fast cgi named pipe) According to MSDN, I should be using CreateFile() or CallNamedPipe() (flat C API, synchronous – no overlapped I/O) http://msdn.microsoft.com/en-us/library/aa363858(VS.85).aspx

Yet I am getting INVALID_HANDLE_VALUE and when I GetLastError() it is zero!?

I am also wondering if I can just enumerate all the named pipes with a . call of some sort and then parse out the one I am looking for: ‘\.\pipe\FastCGI\’

and does anyone have experience with these comments: http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/225878

Answer 1

Using the undocumented function:

// NtQueryDirectoryFile(
// IN HANDLE FileHandle, // handle to the file
// IN HANDLE EventHandle OPTIONAL,
// IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
// IN PVOID ApcContext OPTIONAL,
// OUT PIO_STATUS_BLOCK IoStatusBlock,
// OUT PVOID Buffer, // pointer to the buffer to receive the result
// IN ULONG BufferLength, // length of Buffer
// IN FILE_INFORMATION_CLASS InformationClass,// information type
// IN BOOLEAN ReturnByOne, // each call returns info for only one file
// IN PUNICODE_STRING FileTemplate OPTIONAL, // template for search
// IN BOOLEAN Reset // restart search
// );