public void GetFileNameByHandleBasic()
{
string tempPath = FileMethods.GetTempPath();
string tempFileName = System.IO.Path.Combine(tempPath, System.IO.Path.GetRandomFileName());
try
{
using (var file = FileMethods.CreateFile(tempFileName, DesiredAccess.GENERIC_READWRITE, ShareMode.FILE_SHARE_READWRITE, CreationDisposition.CREATE_NEW))
{
string fileName = FileMethods.GetFileNameByHandle(file);
tempFileName.Should().EndWith(fileName);
}
}
finally
{
FileMethods.DeleteFile(tempFileName);
}
}
public void QueryDosVolumePathBasic()
{
string tempPath = FileMethods.GetTempPath();
using (var directory = FileMethods.CreateFile(tempPath, DesiredAccess.GENERIC_READ, ShareMode.FILE_SHARE_READWRITE, CreationDisposition.OPEN_EXISTING,
FileAttributes.NONE, FileFlags.FILE_FLAG_BACKUP_SEMANTICS))
{
// This will give back the NT path (\Device\HarddiskVolumen...)
string fullName = HandleDesktopMethods.GetObjectName(directory);
string fileName = FileMethods.GetFileNameByHandle(directory);
string deviceName = fullName.Substring(0, fullName.Length - fileName.Length);
string dosVolumePath = DeviceDesktopMethods.QueryDosVolumePath(deviceName);
tempPath.Should().StartWith(dosVolumePath);
tempPath.Should().Be(dosVolumePath + fileName + @"\");
}
}
public void GetPipeObjectInfo()
{
var fileHandle = FileMethods.CreateFile(
@"\\.\pipe\",
0, // We don't care about read or write, we're just getting metadata with this handle
System.IO.FileShare.ReadWrite,
System.IO.FileMode.Open,
0,
FileFlags.FILE_FLAG_OPEN_REPARSE_POINT // To avoid traversing links
| FileFlags.FILE_FLAG_BACKUP_SEMANTICS); // To open directories
string name = HandleDesktopMethods.GetObjectName(fileHandle);
name.Should().Be(@"\Device\NamedPipe\");
string typeName = HandleDesktopMethods.GetObjectType(fileHandle);
typeName.Should().Be(@"File");
string fileName = FileMethods.GetFileNameByHandle(fileHandle);
fileName.Should().Be(@"\");
}
public void GetPipeObjectInfoNoTrailingSlash()
{
var fileHandle = FileMethods.CreateFile(
@"\\.\pipe",
0, // We don't care about read or write, we're just getting metadata with this handle
System.IO.FileShare.ReadWrite,
System.IO.FileMode.Open,
0,
FileFlags.FILE_FLAG_OPEN_REPARSE_POINT // To avoid traversing links
| FileFlags.FILE_FLAG_BACKUP_SEMANTICS); // To open directories
string name = HandleDesktopMethods.GetObjectName(fileHandle);
name.Should().Be(@"\Device\NamedPipe");
string typeName = HandleDesktopMethods.GetObjectType(fileHandle);
typeName.Should().Be(@"File");
// Not sure why this is- probably the source of why so many other things go wrong
Action action = () => FileMethods.GetFileNameByHandle(fileHandle);
action.ShouldThrow <ArgumentException>().And.HResult.Should().Be(unchecked ((int)0x80070057));
}
