2011-03-03 18:34:33 +00:00
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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 FileSystemIDandChk;
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// Information from Inside Macintosh
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namespace FileSystemIDandChk.Plugins
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{
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class AppleHFS : Plugin
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{
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2012-08-04 18:20:03 +00:00
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private const UInt16 HFS_MAGIC = 0x4244; // "BD"
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private const UInt16 HFSP_MAGIC = 0x482B; // "H+"
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private const UInt16 HFSBB_MAGIC = 0x4C4B; // "LK"
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2011-03-03 18:34:33 +00:00
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public AppleHFS(PluginBase Core)
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{
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base.Name = "Apple Hierarchical File System";
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2011-03-28 11:15:54 +00:00
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base.PluginUUID = new Guid("36405F8D-0D26-6ECC-0BBB-1D5225FF404F");
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2011-03-03 18:34:33 +00:00
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}
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public override bool Identify(FileStream stream, long offset)
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{
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byte[] signature = new byte[2];
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2012-08-04 18:20:03 +00:00
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UInt16 drSigWord;
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EndianAwareBinaryReader eabr = new EndianAwareBinaryReader(stream, false); // BigEndian
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eabr.BaseStream.Seek(0x400 + offset, SeekOrigin.Begin);
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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drSigWord = eabr.ReadUInt16();
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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if(drSigWord == HFS_MAGIC)
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2011-03-06 00:25:11 +00:00
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{
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2012-08-04 18:20:03 +00:00
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eabr.BaseStream.Seek(0x47C + offset, SeekOrigin.Begin); // Seek to embedded HFS+ signature
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drSigWord = eabr.ReadUInt16();
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2011-03-06 00:25:11 +00:00
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2012-08-04 18:20:03 +00:00
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if(drSigWord == HFSP_MAGIC) // "H+"
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2011-03-06 00:25:11 +00:00
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return false;
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else
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return true;
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}
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2011-03-03 18:34:33 +00:00
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else
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return false;
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}
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public override void GetInformation (FileStream stream, long offset, out string information)
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{
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information = "";
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StringBuilder sb = new StringBuilder();
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HFS_MasterDirectoryBlock MDB = new HFS_MasterDirectoryBlock();
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HFS_BootBlock BB = new HFS_BootBlock();
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2012-08-04 18:20:03 +00:00
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byte[] pString;
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EndianAwareBinaryReader eabr = new EndianAwareBinaryReader(stream, false); // BigEndian
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eabr.BaseStream.Seek(0x400 + offset, SeekOrigin.Begin);
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MDB.drSigWord = eabr.ReadUInt16();
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if(MDB.drSigWord != HFS_MAGIC)
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2011-03-03 18:34:33 +00:00
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return;
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2012-08-04 18:20:03 +00:00
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MDB.drCrDate = eabr.ReadUInt32();
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MDB.drLsMod = eabr.ReadUInt32();
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MDB.drAtrb = eabr.ReadUInt16();
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MDB.drNmFls = eabr.ReadUInt16();
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MDB.drVBMSt = eabr.ReadUInt16();
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MDB.drAllocPtr = eabr.ReadUInt16();
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MDB.drNmAlBlks = eabr.ReadUInt16();
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MDB.drAlBlkSiz = eabr.ReadUInt32();
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MDB.drClpSiz = eabr.ReadUInt32();
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MDB.drAlBlSt = eabr.ReadUInt16();
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MDB.drNxtCNID = eabr.ReadUInt32();
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MDB.drFreeBks = eabr.ReadUInt16();
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pString = eabr.ReadBytes(28);
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MDB.drVN = StringHandlers.PascalToString(pString);
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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MDB.drVolBkUp = eabr.ReadUInt32();
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MDB.drVSeqNum = eabr.ReadUInt16();
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MDB.drWrCnt = eabr.ReadUInt32();
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MDB.drXTClpSiz = eabr.ReadUInt32();
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MDB.drCTClpSiz = eabr.ReadUInt32();
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MDB.drNmRtDirs = eabr.ReadUInt16();
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MDB.drFilCnt = eabr.ReadUInt32();
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MDB.drDirCnt = eabr.ReadUInt32();
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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MDB.drFndrInfo0 = eabr.ReadUInt32();
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MDB.drFndrInfo1 = eabr.ReadUInt32();
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MDB.drFndrInfo2 = eabr.ReadUInt32();
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MDB.drFndrInfo3 = eabr.ReadUInt32();
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MDB.drFndrInfo4 = eabr.ReadUInt32();
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MDB.drFndrInfo5 = eabr.ReadUInt32();
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MDB.drFndrInfo6 = eabr.ReadUInt32();
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MDB.drFndrInfo7 = eabr.ReadUInt32();
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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MDB.drEmbedSigWord = eabr.ReadUInt16();
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MDB.xdrStABNt = eabr.ReadUInt16();
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MDB.xdrNumABlks = eabr.ReadUInt16();
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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MDB.drXTFlSize = eabr.ReadUInt32();
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eabr.BaseStream.Seek(12, SeekOrigin.Current);
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MDB.drCTFlSize = eabr.ReadUInt32();
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eabr.BaseStream.Seek(12, SeekOrigin.Current);
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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eabr.BaseStream.Seek(0 + offset, SeekOrigin.Begin);
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BB.signature = eabr.ReadUInt16();
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if(BB.signature == HFSBB_MAGIC)
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2011-03-03 18:34:33 +00:00
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{
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2012-08-04 18:20:03 +00:00
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BB.branch = eabr.ReadUInt32();
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BB.boot_flags = eabr.ReadByte();
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BB.boot_version = eabr.ReadByte();
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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BB.sec_sv_pages = eabr.ReadInt16();
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pString = eabr.ReadBytes(16);
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BB.system_name = StringHandlers.PascalToString(pString);
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pString = eabr.ReadBytes(16);
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BB.finder_name = StringHandlers.PascalToString(pString);
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pString = eabr.ReadBytes(16);
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BB.debug_name = StringHandlers.PascalToString(pString);
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pString = eabr.ReadBytes(16);
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BB.disasm_name = StringHandlers.PascalToString(pString);
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pString = eabr.ReadBytes(16);
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BB.stupscr_name = StringHandlers.PascalToString(pString);
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pString = eabr.ReadBytes(16);
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BB.bootup_name = StringHandlers.PascalToString(pString);
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pString = eabr.ReadBytes(16);
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BB.clipbrd_name = StringHandlers.PascalToString(pString);
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2011-03-03 18:34:33 +00:00
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2012-08-04 18:20:03 +00:00
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BB.max_files = eabr.ReadUInt16();
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BB.queue_size = eabr.ReadUInt16();
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BB.heap_128k = eabr.ReadUInt32();
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BB.heap_256k = eabr.ReadUInt32();
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BB.heap_512k = eabr.ReadUInt32();
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2011-03-03 18:34:33 +00:00
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}
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else
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BB.signature = 0x0000;
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sb.AppendLine("Apple Hierarchical File System");
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sb.AppendLine();
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sb.AppendLine("Master Directory Block:");
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2012-08-03 01:45:38 +00:00
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sb.AppendFormat("Creation date: {0}", DateHandlers.MacToDateTime(MDB.drCrDate)).AppendLine();
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sb.AppendFormat("Last modification date: {0}", DateHandlers.MacToDateTime(MDB.drLsMod)).AppendLine();
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sb.AppendFormat("Last backup date: {0}", DateHandlers.MacToDateTime(MDB.drVolBkUp)).AppendLine();
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2011-03-03 18:34:33 +00:00
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sb.AppendFormat("Backup sequence number: {0}", MDB.drVSeqNum).AppendLine();
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if((MDB.drAtrb & 0x80) == 0x80)
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sb.AppendLine("Volume is locked by hardware.");
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if((MDB.drAtrb & 0x100) == 0x100)
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sb.AppendLine("Volume was unmonted.");
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else
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sb.AppendLine("Volume is mounted.");
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if((MDB.drAtrb & 0x200) == 0x200)
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sb.AppendLine("Volume has spared bad blocks.");
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if((MDB.drAtrb & 0x400) == 0x400)
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sb.AppendLine("Volume does not need cache.");
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if((MDB.drAtrb & 0x800) == 0x800)
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sb.AppendLine("Boot volume is inconsistent.");
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if((MDB.drAtrb & 0x1000) == 0x1000)
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sb.AppendLine("There are reused CNIDs.");
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if((MDB.drAtrb & 0x2000) == 0x2000)
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sb.AppendLine("Volume is journaled.");
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if((MDB.drAtrb & 0x4000) == 0x4000)
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sb.AppendLine("Volume is seriously inconsistent.");
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if((MDB.drAtrb & 0x8000) == 0x8000)
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sb.AppendLine("Volume is locked by software.");
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sb.AppendFormat("{0} files on root directory", MDB.drNmFls).AppendLine();
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sb.AppendFormat("{0} directories on root directory", MDB.drNmRtDirs).AppendLine();
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sb.AppendFormat("{0} files on volume", MDB.drFilCnt).AppendLine();
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sb.AppendFormat("{0} directories on volume", MDB.drDirCnt).AppendLine();
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sb.AppendFormat("Volume write count: {0}", MDB.drWrCnt).AppendLine();
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sb.AppendFormat("Volume bitmap starting sector (in 512-bytes): {0}", MDB.drVBMSt).AppendLine();
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sb.AppendFormat("Next allocation block: {0}.", MDB.drAllocPtr).AppendLine();
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sb.AppendFormat("{0} volume allocation blocks.", MDB.drNmAlBlks).AppendLine();
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sb.AppendFormat("{0} bytes per allocation block.", MDB.drAlBlkSiz).AppendLine();
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sb.AppendFormat("{0} bytes to allocate when extending a file.", MDB.drClpSiz).AppendLine();
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sb.AppendFormat("{0} bytes to allocate when extending a Extents B-Tree.", MDB.drXTClpSiz).AppendLine();
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sb.AppendFormat("{0} bytes to allocate when extending a Catalog B-Tree.", MDB.drCTClpSiz).AppendLine();
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sb.AppendFormat("Sector of first allocation block: {0}", MDB.drAlBlSt).AppendLine();
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sb.AppendFormat("Next unused CNID: {0}", MDB.drNxtCNID).AppendLine();
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sb.AppendFormat("{0} unused allocation blocks.", MDB.drFreeBks).AppendLine();
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sb.AppendFormat("{0} bytes in the Extents B-Tree", MDB.drXTFlSize).AppendLine();
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sb.AppendFormat("{0} bytes in the Catalog B-Tree", MDB.drCTFlSize).AppendLine();
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2012-08-04 18:20:03 +00:00
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sb.AppendFormat("Volume name: {0}", MDB.drVN).AppendLine();
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2011-03-03 18:34:33 +00:00
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sb.AppendLine("Finder info:");
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sb.AppendFormat("CNID of bootable system's directory: {0}", MDB.drFndrInfo0).AppendLine();
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sb.AppendFormat("CNID of first-run application's directory: {0}", MDB.drFndrInfo1).AppendLine();
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sb.AppendFormat("CNID of previously opened directory: {0}", MDB.drFndrInfo2).AppendLine();
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sb.AppendFormat("CNID of bootable Mac OS 8 or 9 directory: {0}", MDB.drFndrInfo3).AppendLine();
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sb.AppendFormat("CNID of bootable Mac OS X directory: {0}", MDB.drFndrInfo5).AppendLine();
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sb.AppendFormat("Mac OS X Volume ID: {0:X8}{1:X8}", MDB.drFndrInfo6, MDB.drFndrInfo7).AppendLine();
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if(MDB.drEmbedSigWord == 0x482B)
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{
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sb.AppendLine("Volume wraps a HFS+ volume.");
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sb.AppendFormat("Starting block of the HFS+ volume: {0}", MDB.xdrStABNt).AppendLine();
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sb.AppendFormat("Allocations blocks of the HFS+ volume: {0}", MDB.xdrNumABlks).AppendLine();
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}
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if(BB.signature == 0x4C4B)
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{
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sb.AppendLine("Volume is bootable.");
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sb.AppendLine();
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sb.AppendLine("Boot Block:");
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if((BB.boot_flags & 0x40) == 0x40)
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sb.AppendLine("Boot block should be executed.");
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if((BB.boot_flags & 0x80) == 0x80)
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{
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sb.AppendLine("Boot block is in new unknown format.");
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}
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else
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{
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if(BB.sec_sv_pages > 0)
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sb.AppendLine("Allocate secondary sound buffer at boot.");
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else if(BB.sec_sv_pages < 0)
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sb.AppendLine("Allocate secondary sound and video buffers at boot.");
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sb.AppendFormat("System filename: {0}", BB.system_name).AppendLine();
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sb.AppendFormat("Finder filename: {0}", BB.finder_name).AppendLine();
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sb.AppendFormat("Debugger filename: {0}", BB.debug_name).AppendLine();
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sb.AppendFormat("Disassembler filename: {0}", BB.disasm_name).AppendLine();
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sb.AppendFormat("Startup screen filename: {0}", BB.stupscr_name).AppendLine();
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sb.AppendFormat("First program to execute at boot: {0}", BB.bootup_name).AppendLine();
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sb.AppendFormat("Clipboard filename: {0}", BB.clipbrd_name).AppendLine();
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sb.AppendFormat("Maximum opened files: {0}", BB.max_files*4).AppendLine();
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sb.AppendFormat("Event queue size: {0}", BB.queue_size).AppendLine();
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sb.AppendFormat("Heap size with 128KiB of RAM: {0} bytes", BB.heap_128k).AppendLine();
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sb.AppendFormat("Heap size with 256KiB of RAM: {0} bytes", BB.heap_256k).AppendLine();
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sb.AppendFormat("Heap size with 512KiB of RAM or more: {0} bytes", BB.heap_512k).AppendLine();
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}
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}
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else
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sb.AppendLine("Volume is not bootable.");
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information = sb.ToString();
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return;
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}
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private struct HFS_MasterDirectoryBlock // Should be offset 0x0400 bytes in volume
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{
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public UInt16 drSigWord; // Signature, 0x4244
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2011-03-06 00:25:11 +00:00
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public ulong drCrDate; // Volume creation date
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public ulong drLsMod; // Volume last modification date
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2011-03-03 18:34:33 +00:00
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public UInt16 drAtrb; // Volume attributes
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public UInt16 drNmFls; // Files in root directory
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public UInt16 drVBMSt; // Start 512-byte sector of volume bitmap
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public UInt16 drAllocPtr; // Allocation block to begin next allocation
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public UInt16 drNmAlBlks; // Allocation blocks
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public UInt32 drAlBlkSiz; // Bytes per allocation block
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public UInt32 drClpSiz; // Bytes to allocate when extending a file
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public UInt16 drAlBlSt; // Start 512-byte sector of first allocation block
|
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public UInt32 drNxtCNID; // CNID for next file
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public UInt16 drFreeBks; // Free allocation blocks
|
2012-08-04 18:20:03 +00:00
|
|
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public string drVN; // Volume name (28 bytes)
|
2011-03-06 00:25:11 +00:00
|
|
|
public ulong drVolBkUp; // Volume last backup time
|
2011-03-03 18:34:33 +00:00
|
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public UInt16 drVSeqNum; // Volume backup sequence number
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public UInt32 drWrCnt; // Filesystem write count
|
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public UInt32 drXTClpSiz; // Bytes to allocate when extending the extents B-Tree
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public UInt32 drCTClpSiz; // Bytes to allocate when extending the catalog B-Tree
|
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public UInt16 drNmRtDirs; // Number of directories in root directory
|
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public UInt32 drFilCnt; // Number of files in the volume
|
|
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|
|
public UInt32 drDirCnt; // Number of directories in the volume
|
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|
|
public UInt32 drFndrInfo0; // finderInfo[0], CNID for bootable system's directory
|
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|
|
public UInt32 drFndrInfo1; // finderInfo[1], CNID of the directory containing the boot application
|
|
|
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|
public UInt32 drFndrInfo2; // finderInfo[2], CNID of the directory that should be opened on boot
|
|
|
|
|
public UInt32 drFndrInfo3; // finderInfo[3], CNID for Mac OS 8 or 9 directory
|
|
|
|
|
public UInt32 drFndrInfo4; // finderInfo[4], Reserved
|
|
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|
|
public UInt32 drFndrInfo5; // finderInfo[5], CNID for Mac OS X directory
|
|
|
|
|
public UInt32 drFndrInfo6; // finderInfo[6], first part of Mac OS X volume ID
|
|
|
|
|
public UInt32 drFndrInfo7; // finderInfo[7], second part of Mac OS X volume ID
|
|
|
|
|
public UInt16 drEmbedSigWord; // Embedded volume signature, "H+" if HFS+ is embedded ignore following two fields if not
|
|
|
|
|
public UInt16 xdrStABNt; // Starting block number of embedded HFS+ volume
|
|
|
|
|
public UInt16 xdrNumABlks; // Allocation blocks used by embedded volume
|
|
|
|
|
public UInt32 drXTFlSize; // Bytes in the extents B-Tree
|
|
|
|
|
// 3 HFS extents following, 32 bits each
|
|
|
|
|
public UInt32 drCTFlSize; // Bytes in the catalog B-Tree
|
|
|
|
|
// 3 HFS extents following, 32 bits each
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private struct HFS_BootBlock // Should be offset 0x0000 bytes in volume
|
|
|
|
|
{
|
|
|
|
|
public UInt16 signature; // Signature, 0x4C4B if bootable
|
|
|
|
|
public UInt32 branch; // Branch
|
|
|
|
|
public byte boot_flags; // Boot block flags
|
|
|
|
|
public byte boot_version; // Boot block version
|
|
|
|
|
public Int16 sec_sv_pages; // Allocate secondary buffers
|
|
|
|
|
public string system_name; // System file name (10 bytes)
|
|
|
|
|
public string finder_name; // Finder file name (10 bytes)
|
|
|
|
|
public string debug_name; // Debugger file name (10 bytes)
|
|
|
|
|
public string disasm_name; // Disassembler file name (10 bytes)
|
|
|
|
|
public string stupscr_name; // Startup screen file name (10 bytes)
|
|
|
|
|
public string bootup_name; // First program to execute on boot (10 bytes)
|
|
|
|
|
public string clipbrd_name; // Clipboard file name (10 bytes)
|
|
|
|
|
public UInt16 max_files; // 1/4 of maximum opened at a time files
|
|
|
|
|
public UInt16 queue_size; // Event queue size
|
|
|
|
|
public UInt32 heap_128k; // Heap size on a Mac with 128KiB of RAM
|
|
|
|
|
public UInt32 heap_256k; // Heap size on a Mac with 256KiB of RAM
|
|
|
|
|
public UInt32 heap_512k; // Heap size on a Mac with 512KiB of RAM or more
|
|
|
|
|
} // Follows boot code
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
