/// <summary>
/// Return whether or not the given expression matches the given name. Takes standard
/// Windows wildcards (*, ?, <, > ").
/// </summary>
public unsafe static bool IsNameInExpression(string expression, string name, bool ignoreCase)
{
if (string.IsNullOrEmpty(expression) || string.IsNullOrEmpty(name))
{
return(false);
// If ignore case is set, the API will uppercase the name *if* an UpcaseTable
// is not provided. It then flips to case-sensitive. In this state the expression
// has to be uppercase to match as expected.
fixed(char *e = ignoreCase?expression.ToUpperInvariant() : expression)
fixed(char *n = name)
{
SafeString.Unsafe.UNICODE_STRING *eus = null;
SafeString.Unsafe.UNICODE_STRING *nus = null;
if (e != null)
{
var temp = new SafeString.Unsafe.UNICODE_STRING(e, expression.Length);
eus = &temp;
}
if (n != null)
{
var temp = new SafeString.Unsafe.UNICODE_STRING(n, name.Length);
nus = &temp;
}
return(Imports.RtlIsNameInExpression(eus, nus, ignoreCase, IntPtr.Zero));
}
}
public unsafe static IntPtr CreateFileRelative(
ReadOnlySpan <char> path,
IntPtr rootDirectory,
CreateDisposition createDisposition,
DesiredAccess desiredAccess = DesiredAccess.GenericReadWrite | DesiredAccess.Synchronize,
ShareModes shareAccess = ShareModes.ReadWrite,
FileAttributes fileAttributes = FileAttributes.None,
CreateOptions createOptions = CreateOptions.SynchronousIoNonalert,
ObjectAttributes objectAttributes = ObjectAttributes.CaseInsensitive)
{
fixed(char *c = &MemoryMarshal.GetReference(path))
{
var name = new SafeString.Unsafe.UNICODE_STRING(c, path.Length);
var attributes = new Handles.Unsafe.OBJECT_ATTRIBUTES(
&name,
objectAttributes,
rootDirectory,
null,
null);
Imports.NtCreateFile(
out IntPtr handle,
desiredAccess,
ref attributes,
out IO_STATUS_BLOCK statusBlock,
AllocationSize: null,
FileAttributes: fileAttributes,
ShareAccess: shareAccess,
CreateDisposition: createDisposition,
CreateOptions: createOptions,
EaBuffer: null,
EaLength: 0)
.ThrowIfFailed(path.ToString());
return(handle);
}
}
