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76 lines
2.6 KiB
C#
76 lines
2.6 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Identify.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Identifies CPCEMU disk images.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.IO;
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using System.Text;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.Helpers;
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using Aaru.Logging;
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namespace Aaru.Images;
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public sealed partial class Cpcdsk
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{
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#region IMediaImage Members
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/// <inheritdoc />
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public bool Identify(IFilter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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stream.Seek(0, SeekOrigin.Begin);
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if(stream.Length < 512) return false;
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var headerB = new byte[256];
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stream.EnsureRead(headerB, 0, 256);
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int pos;
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for(pos = 0; pos < 254; pos++)
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{
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if(headerB[pos] == 0x0D && headerB[pos + 1] == 0x0A) break;
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}
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if(pos >= 254) return false;
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string magic = Encoding.ASCII.GetString(headerB, 0, pos);
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AaruLogging.Debug(MODULE_NAME, Localization.magic_equals_0_quoted, magic);
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return string.Equals(CPCDSK_ID, magic, StringComparison.InvariantCultureIgnoreCase) ||
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string.Equals(EDSK_ID, magic, StringComparison.InvariantCultureIgnoreCase) ||
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string.Equals(DU54_ID, magic, StringComparison.InvariantCultureIgnoreCase);
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}
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#endregion
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} |