using System;
using System.Collections.Generic;
using System.Text;
using System.Security;
using System.Security.Permissions;
using System.IO;
class Program {
static void Main(string[] args) {
CodeAccessPermission permission = new FileIOPermission(FileIOPermissionAccess.Append,@"C:\audit.txt");
permission.Deny();
AuditClass.Save("some data to audit");
CodeAccessPermission.RevertDeny();
}
}
class AuditClass {
public static void Save(string value) {
try {
FileIOPermission permission = new FileIOPermission(FileIOPermissionAccess.Append,@"C:\audit.txt");
permission.Assert();
FileStream stream = new FileStream(@"C:\audit.txt",FileMode.Append, FileAccess.Write);
CodeAccessPermission.RevertAssert();
Console.WriteLine("Data written to audit file");
} catch {
Console.WriteLine("Failed to write data to audit file");
}
}
}