Refactor image classes and split them to smaller files.

DiscImageChef.DiscImages/NDIF/Structs.cs

@@ -0,0 +1,145 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : Structs.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Disk image plugins.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Contains structures for Apple New Disk Image Format.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     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, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2011-2018 Natalia Portillo
+// ****************************************************************************/
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace DiscImageChef.DiscImages
+{
+    public partial class Ndif
+    {
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct ChunkHeader
+        {
+            /// <summary>
+            ///     Version
+            /// </summary>
+            public short version;
+            /// <summary>
+            ///     Filesystem ID
+            /// </summary>
+            public short driver;
+            /// <summary>
+            ///     Disk image name, Str63 (Pascal string)
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 64)]
+            public byte[] name;
+            /// <summary>
+            ///     Sectors in image
+            /// </summary>
+            public uint sectors;
+            /// <summary>
+            ///     Maximum number of sectors per chunk
+            /// </summary>
+            public uint maxSectorsPerChunk;
+            /// <summary>
+            ///     Offset to add to every chunk offset
+            /// </summary>
+            public uint dataOffset;
+            /// <summary>
+            ///     CRC28 of whole image
+            /// </summary>
+            public uint crc;
+            /// <summary>
+            ///     Set to 1 if segmented
+            /// </summary>
+            public uint segmented;
+            /// <summary>
+            ///     Unknown
+            /// </summary>
+            public uint p1;
+            /// <summary>
+            ///     Unknown
+            /// </summary>
+            public uint p2;
+            /// <summary>
+            ///     Unknown, spare?
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 5)]
+            public uint[] unknown;
+            /// <summary>
+            ///     Set to 1 by ShrinkWrap if image is encrypted
+            /// </summary>
+            public uint encrypted;
+            /// <summary>
+            ///     Set by ShrinkWrap if image is encrypted, value is the same for same password
+            /// </summary>
+            public uint hash;
+            /// <summary>
+            ///     How many chunks follow the header
+            /// </summary>
+            public uint chunks;
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct BlockChunk
+        {
+            /// <summary>
+            ///     Starting sector, 3 bytes
+            /// </summary>
+            public uint sector;
+            /// <summary>
+            ///     Chunk type
+            /// </summary>
+            public byte type;
+            /// <summary>
+            ///     Offset in start of chunk
+            /// </summary>
+            public uint offset;
+            /// <summary>
+            ///     Length in bytes of chunk
+            /// </summary>
+            public uint length;
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct SegmentHeader
+        {
+            /// <summary>
+            ///     Segment #
+            /// </summary>
+            public ushort segment;
+            /// <summary>
+            ///     How many segments
+            /// </summary>
+            public ushort segments;
+            /// <summary>
+            ///     Seems to be a Guid, changes with different images, same for all segments of same image
+            /// </summary>
+            public Guid segmentId;
+            /// <summary>
+            ///     Seems to be a CRC28 of this segment, unchecked
+            /// </summary>
+            public uint crc;
+        }
+    }
+}