Mega Code Archive

 

Categories / C# / Security

 

Writing secure code

using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Security; using System.IO; using System.Security.Permissions; public class MainClass {     public static void Main(){         PermissionSet ps = new PermissionSet(System.Security.Permissions.PermissionState.None);         ps.AddPermission(new FileIOPermission(FileIOPermissionAccess.Read |FileIOPermissionAccess.Write | FileIOPermissionAccess.Append,"c:\\temp\\temp.txt"));         ps.Deny();         //ps.Assert();         FileStream fs = new FileStream(@"c:\temp\temp.txt",FileMode.OpenOrCreate, FileAccess.Write);         StreamWriter m_streamWriter = new StreamWriter(fs);         m_streamWriter.BaseStream.Seek(0, SeekOrigin.End);         m_streamWriter.Write("Test");     } }