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// GZipConstants.cs

//

// Copyright (C) 2001 Mike Krueger

//

// This file was translated from java, it was part of the GNU Classpath

// Copyright (C) 2001 Free Software Foundation, Inc.

//

// This program is free software; you can redistribute it and/or

// modify it under the terms of the GNU General Public License

// as published by the Free Software Foundation; either version 2

// of the License, or (at your option) any later version.

//

// This program 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 General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with this program; if not, write to the Free Software

// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

//

// Linking this library statically or dynamically with other modules is

// making a combined work based on this library.  Thus, the terms and

// conditions of the GNU General Public License cover the whole

// combination.

// 

// As a special exception, the copyright holders of this library give you

// permission to link this library with independent modules to produce an

// executable, regardless of the license terms of these independent

// modules, and to copy and distribute the resulting executable under

// terms of your choice, provided that you also meet, for each linked

// independent module, the terms and conditions of the license of that

// module.  An independent module is a module which is not derived from

// or based on this library.  If you modify this library, you may extend

// this exception to your version of the library, but you are not

// obligated to do so.  If you do not wish to do so, delete this

// exception statement from your version.

namespace ICSharpCode.SharpZipLib.GZip 

{

	/// <summary>

	/// This class contains constants used for gzip.

	/// </summary>

	sealed public class GZipConstants

	{

		/// <summary>

		/// Magic number found at start of GZIP header

		/// </summary>

		public const int GZIP_MAGIC = 0x1F8B;

		/*  The flag byte is divided into individual bits as follows:

			bit 0   FTEXT

			bit 1   FHCRC

			bit 2   FEXTRA

			bit 3   FNAME

			bit 4   FCOMMENT

			bit 5   reserved

			bit 6   reserved

			bit 7   reserved

		 */

		/// <summary>

		/// Flag bit mask for text

		/// </summary>

		public const int FTEXT    = 0x1;

		/// <summary>

		/// Flag bitmask for Crc

		/// </summary>

		public const int FHCRC    = 0x2;

		/// <summary>

		/// Flag bit mask for extra

		/// </summary>

		public const int FEXTRA   = 0x4;

		/// <summary>

		/// flag bitmask for name

		/// </summary>

		public const int FNAME    = 0x8;

		/// <summary>

		/// flag bit mask indicating comment is present

		/// </summary>

		public const int FCOMMENT = 0x10;

		/// <summary>

		/// Initialise default instance.

		/// </summary>

		/// <remarks>Constructor is private to prevent instances being created.</remarks>

		GZipConstants()

		{

		}

	}

}