// Npgsql.NpgsqlStartupState.cs
// 
// Author:
// 	Dave Joyner <d4ljoyn@yahoo.com>
//
//	Copyright (C) 2002 The Npgsql Development Team
//	npgsql-general@gborg.postgresql.org
//	http://gborg.postgresql.org/project/npgsql/projdisplay.php
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


using System;
using System.IO;
using System.Net;
using System.Net.Sockets;

namespace Npgsql
{
	
	
	internal sealed class NpgsqlStartupState : NpgsqlState
	{
		private static NpgsqlStartupState _instance = null;
        
        private readonly String CLASSNAME = "NpgsqlStartupState";
		
		private NpgsqlStartupState() : base() { }
        
		public static NpgsqlStartupState Instance
		{
			get
			{
				if ( _instance == null )
				{
					_instance = new NpgsqlStartupState();
				}
				return _instance;	
			}
		}
		public override void Authenticate( NpgsqlConnection context, string password)
		{
			NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "Authenticate");
			NpgsqlPasswordPacket pwpck = new NpgsqlPasswordPacket(password, context.BackendProtocolVersion);
			BufferedStream stream = context.getStream();
			pwpck.WriteToStream(stream, context.Encoding);
			stream.Flush();
			
		}
	}
}