/// <summary> /// Tries to get dns records from cache, if any. /// </summary> /// <param name="qname"></param> /// <param name="qtype"></param> /// <returns>Returns null if not in cache.</returns> public static DnsServerResponse GetFromCache(string qname, int qtype) { try{ if (m_pCache.Contains(qname + qtype)) { DnsCacheEntry entry = (DnsCacheEntry)m_pCache[qname + qtype]; // If cache object isn't expired if (entry.Time.AddSeconds(m_CacheTime) > DateTime.Now) { return(entry.Answers); } } } catch { } return(null); }