// Filename pattern examples:
// '\Directory' - Get the directory entry
// '\Directory\*' - List the directory files
// '\Directory\s*' - List the directory files starting with s (cmd.exe will use this syntax when entering 's' and hitting tab for autocomplete)
// '\Directory\<.inf' (Update driver will use this syntax)
// '\Directory\exefile"*' (cmd.exe will use this syntax when entering an exe without its extension, explorer will use this opening a directory from the run menu)
/// <param name="fileNamePattern">The filename pattern to search for. This field MAY contain wildcard characters</param>
/// <exception cref="System.UnauthorizedAccessException"></exception>
public static NTStatus QueryDirectory(out List <QueryDirectoryFileInformation> result, INTFileStore fileStore, string fileNamePattern, FileInformationClass fileInformation, SecurityContext securityContext)
{
int separatorIndex = fileNamePattern.LastIndexOf('\\');
if (separatorIndex >= 0)
{
string path = fileNamePattern.Substring(0, separatorIndex + 1);
string fileName = fileNamePattern.Substring(separatorIndex + 1);
object handle;
FileStatus fileStatus;
DirectoryAccessMask accessMask = DirectoryAccessMask.FILE_LIST_DIRECTORY | DirectoryAccessMask.FILE_TRAVERSE | DirectoryAccessMask.SYNCHRONIZE;
CreateOptions createOptions = CreateOptions.FILE_DIRECTORY_FILE | CreateOptions.FILE_SYNCHRONOUS_IO_NONALERT;
NTStatus status = fileStore.CreateFile(out handle, out fileStatus, path, (AccessMask)accessMask, 0, ShareAccess.FILE_SHARE_READ | ShareAccess.FILE_SHARE_WRITE, CreateDisposition.FILE_OPEN, createOptions, securityContext);
if (status != NTStatus.STATUS_SUCCESS)
{
result = null;
return(status);
}
status = fileStore.QueryDirectory(out result, handle, fileName, fileInformation);
fileStore.CloseFile(handle);
return(status);
}
else
{
result = null;
return(NTStatus.STATUS_INVALID_PARAMETER);
}
}