public FileSecurity GetAccessControl()
{
IntPtr pSidOwner, pSidGroup, pDacl, pSacl;
SafeGlobalMemoryBufferHandle pSecurityDescriptor;
var lastError = (int)SecurityNativeMethods.GetSecurityInfo(SafeFileHandle, SE_OBJECT_TYPE.SE_FILE_OBJECT, SECURITY_INFORMATION.GROUP_SECURITY_INFORMATION | SECURITY_INFORMATION.OWNER_SECURITY_INFORMATION | SECURITY_INFORMATION.LABEL_SECURITY_INFORMATION | SECURITY_INFORMATION.DACL_SECURITY_INFORMATION | SECURITY_INFORMATION.SACL_SECURITY_INFORMATION, out pSidOwner, out pSidGroup, out pDacl, out pSacl, out pSecurityDescriptor);
try
{
if (lastError != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException(lastError);
}
if (null != pSecurityDescriptor && pSecurityDescriptor.IsInvalid)
{
pSecurityDescriptor.Close();
pSecurityDescriptor = null;
throw new IOException(new Win32Exception((int)Win32Errors.ERROR_INVALID_SECURITY_DESCR).Message);
}
var length = SecurityNativeMethods.GetSecurityDescriptorLength(pSecurityDescriptor);
var managedBuffer = new byte[length];
// .CopyTo() does not work there?
if (null != pSecurityDescriptor)
{
pSecurityDescriptor.CopyTo(managedBuffer, 0, (int)length);
}
var fs = new FileSecurity();
fs.SetSecurityDescriptorBinaryForm(managedBuffer);
return(fs);
}
finally
{
if (null != pSecurityDescriptor)
{
pSecurityDescriptor.Close();
}
}
}
public FileSecurity GetAccessControl()
{
IntPtr pSidOwner, pSidGroup, pDacl, pSacl;
SafeGlobalMemoryBufferHandle pSecurityDescriptor;
uint lastError = SecurityNativeMethods.GetSecurityInfo(SafeFileHandle, ObjectType.FileObject,
SecurityInformation.Group | SecurityInformation.Owner | SecurityInformation.Label | SecurityInformation.Dacl | SecurityInformation.Sacl,
out pSidOwner, out pSidGroup, out pDacl, out pSacl, out pSecurityDescriptor);
try
{
if (lastError != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException((int)lastError);
}
if (pSecurityDescriptor != null && pSecurityDescriptor.IsInvalid)
{
pSecurityDescriptor.Close();
throw new IOException(Resources.Returned_Invalid_Security_Descriptor);
}
uint length = SecurityNativeMethods.GetSecurityDescriptorLength(pSecurityDescriptor);
byte[] managedBuffer = new byte[length];
// .CopyTo() does not work there?
if (pSecurityDescriptor != null)
{
pSecurityDescriptor.CopyTo(managedBuffer, 0, (int)length);
}
var fs = new FileSecurity();
fs.SetSecurityDescriptorBinaryForm(managedBuffer);
return(fs);
}
finally
{
if (pSecurityDescriptor != null)
{
pSecurityDescriptor.Close();
}
}
}
/// <summary>When overridden in a derived class, executes the code required to free the handle.</summary>
/// <returns>
/// <c>true</c> if the handle is released successfully; otherwise, in the event of a catastrophic failure,
/// <c>false</c>. In this case, it generates a ReleaseHandleFailed Managed Debugging Assistant.
/// </returns>
protected override bool ReleaseHandle()
{
return(handle == IntPtr.Zero || NativeMethods.LocalFree(handle) == IntPtr.Zero);
}
