public void SetCookie(Cookie cookie)
{
if (cookie == null)
{
throw new ArgumentNullException("cookie");
}
Cookie new_cookie = cookie.Clone();
int added = Cookies.InternalAdd(new_cookie, true);
if (Logging.On)
{
Logging.PrintInfo(Logging.HttpListener, this, "SetCookie", " cookie#" + ValidationHelper.HashString(cookie));
}
if (added != 1)
{
// cookie already existed and couldn't be replaced
throw new ArgumentException(SR.GetString(SR.net_cookie_exists), "cookie");
}
}