DirectorySecurity.cs

using System.IO;
using System.Security.Permissions;

namespace System.Security.AccessControl
{
    public sealed class DirectorySecurity : FileSystemSecurity
    {
        [SecuritySafeCritical]
        public DirectorySecurity()
            : base(isContainer: true)
        {
        }

        [SecuritySafeCritical]
        [SecurityPermission(SecurityAction.Assert, UnmanagedCode = true)]
        public DirectorySecurity(string name, AccessControlSections includeSections)
            : base(isContainer: true, name, includeSections, isDirectory: true)
        {
            string fullPathInternal = Path.GetFullPathInternal(name);
            FileIOPermission.QuickDemand(FileIOPermissionAccess.NoAccess, AccessControlActions.View, fullPathInternal, checkForDuplicates: false, needFullPath: false);
        }
    }
}