48 lines
1.5 KiB
C#
48 lines
1.5 KiB
C#
//
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// GCFChecksumModule.cs - implements module for calculating checksum used in Valve GCF archives
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//
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// Author:
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// Michael Becker <alcexhim@gmail.com>
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//
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// Copyright (c) 2011-2020 Mike Becker's Software
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using System;
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namespace UniversalEditor.Checksum.Modules.GCF
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{
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/// <summary>
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/// Implements module for calculating checksum used in Valve GCF archives.
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/// </summary>
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public class GCFChecksumModule : ChecksumPlugin
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{
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public override string Name
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{
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get { return "GCF"; }
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}
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public override void Update(byte[] buffer, int offset, int count)
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{
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Adler32.Adler32ChecksumModule adler32 = new Adler32.Adler32ChecksumModule();
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CRC32.CRC32ChecksumModule crc32 = new CRC32.CRC32ChecksumModule();
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Value = (adler32.Calculate(buffer) ^ crc32.Calculate(buffer));
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}
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public override void Update(int value)
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{
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throw new NotImplementedException();
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}
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}
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}
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