/// <summary>
/// Gets the native representation of this attribute. The caller is responsible to free the memory allocated in this method with a call to <see cref="FreeNativeAttribute"/>.
/// </summary>
/// <returns>The native representation of this attribute.</returns>
internal RADIUS_ATTRIBUTE GetNativeAttribute()
{
if (this.radiusAttribute == null)
{
this.radiusAttribute = new RADIUS_ATTRIBUTE {
dwAttrType = this.attributeId
};
this.SetAttributeValue();
}
return(this.radiusAttribute);
}
/// <summary>
/// Releases the memory allocated during a call to <see cref="GetNativeAttribute"/>
/// </summary>
internal void FreeNativeAttribute()
{
if (this.radiusAttribute == null)
{
return;
}
var ip = this.value as IPAddress;
if (ip != null && ip.AddressFamily == AddressFamily.InterNetworkV6)
{
Marshal.FreeHGlobal(this.radiusAttribute.Value.lpValue);
this.radiusAttribute = null;
return;
}
if (this.value is string ||
this.value is byte[] ||
this.value is VendorSpecificAttribute)
{
Marshal.FreeHGlobal(this.radiusAttribute.Value.lpValue);
this.radiusAttribute = null;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="RadiusAttribute"/> class.
/// </summary>
/// <param name="radiusAttributePtr">Pointer to the native attribute.</param>
internal RadiusAttribute(IntPtr radiusAttributePtr)
{
this.radiusAttributePtr = radiusAttributePtr;
this.radiusAttribute = (RADIUS_ATTRIBUTE)Marshal.PtrToStructure(this.radiusAttributePtr, typeof(RADIUS_ATTRIBUTE));
}