/// <summary>
/// Encodes and returns the specified <see cref="AK.Net.Dns.DnsQuery"/>.
/// </summary>
/// <param name="query">The query to encode.</param>
/// <returns>The encoded <see cref="AK.Net.Dns.DnsQuery"/>.</returns>
/// <exception cref="System.ArgumentNullException">
/// Thrown when <paramref name="query"/> is <see langword="null"/>.
/// </exception>
protected ArraySegment <byte> WriteQuery(DnsQuery query)
{
Guard.NotNull(query, "query");
using (DnsWireWriter writer = new DnsWireWriter()) {
query.Write(writer);
return(writer.GetBuffer());
}
}