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Implemented missing methods, for full MFS read-only support.

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This commit is contained in:
Natalia Portillo
2016-08-01 17:59:22 +01:00
parent b60f650733
commit e37f50d5d3
10 changed files with 716 additions and 26 deletions
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85
DiscImageChef.Filesystems/AppleMFS/Dir.cs
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@@ -31,6 +31,8 @@
// ****************************************************************************/
using System.Collections.Generic;
using System;
using DiscImageChef.Console;
namespace DiscImageChef.Filesystems.AppleMFS
{
@@ -39,7 +41,88 @@ namespace DiscImageChef.Filesystems.AppleMFS
{
public override Errno ReadDir(string path, ref List<string> contents)
{
return Errno.NotImplemented;
if(!mounted)
return Errno.AccessDenied;
if(!string.IsNullOrEmpty(path) && string.Compare(path, "/", StringComparison.OrdinalIgnoreCase) != 0)
return Errno.NotSupported;
contents = new List<string>();
foreach(KeyValuePair<uint, string> kvp in idToFilename)
contents.Add(kvp.Value);
if(debug)
{
contents.Add("$");
contents.Add("$Bitmap");
contents.Add("$MDB");
if(bootBlocks != null)
contents.Add("$Boot");
}
contents.Sort();
return Errno.NoError;
}
public bool FillDirectory()
{
idToFilename = new Dictionary<uint, string>();
idToEntry = new Dictionary<uint, MFS_FileEntry>();
filenameToId = new Dictionary<string, uint>();
int offset = 0;
while(offset + 51 < directoryBlocks.Length)
{
MFS_FileEntry entry = new MFS_FileEntry();
string lowerFilename;
entry.flUsrWds = new byte[16];
entry.flFlags = (MFS_FileFlags)directoryBlocks[offset + 0];
if(!entry.flFlags.HasFlag(MFS_FileFlags.Used))
break;
entry.flTyp = directoryBlocks[offset + 1];
Array.Copy(directoryBlocks, offset + 2, entry.flUsrWds, 0, 16);
entry.flFlNum = BigEndianBitConverter.ToUInt32(directoryBlocks, offset + 18);
entry.flStBlk = BigEndianBitConverter.ToUInt16(directoryBlocks, offset + 22);
entry.flLgLen = BigEndianBitConverter.ToUInt32(directoryBlocks, offset + 24);
entry.flPyLen = BigEndianBitConverter.ToUInt32(directoryBlocks, offset + 28);
entry.flRStBlk = BigEndianBitConverter.ToUInt16(directoryBlocks, offset + 32);
entry.flRLgLen = BigEndianBitConverter.ToUInt32(directoryBlocks, offset + 34);
entry.flRPyLen = BigEndianBitConverter.ToUInt32(directoryBlocks, offset + 38);
entry.flCrDat = BigEndianBitConverter.ToUInt32(directoryBlocks, offset + 42);
entry.flMdDat = BigEndianBitConverter.ToUInt32(directoryBlocks, offset + 46);
entry.flNam = new byte[directoryBlocks[offset + 50] + 1];
Array.Copy(directoryBlocks, offset + 50, entry.flNam, 0, entry.flNam.Length);
lowerFilename = GetStringFromPascal(entry.flNam).ToLowerInvariant().Replace('/', ':');
if(entry.flFlags.HasFlag(MFS_FileFlags.Used) && !idToFilename.ContainsKey(entry.flFlNum) &&
!idToEntry.ContainsKey(entry.flFlNum) && !filenameToId.ContainsKey(lowerFilename) &&
entry.flFlNum > 0)
{
idToEntry.Add(entry.flFlNum, entry);
idToFilename.Add(entry.flFlNum, GetStringFromPascal(entry.flNam).Replace('/', ':'));
filenameToId.Add(lowerFilename, entry.flFlNum);
System.Console.WriteLine("{0}", offset);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flFlags = {0}", entry.flFlags);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flTyp = {0}", entry.flTyp);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flFlNum = {0}", entry.flFlNum);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flStBlk = {0}", entry.flStBlk);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flLgLen = {0}", entry.flLgLen);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flPyLen = {0}", entry.flPyLen);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flRStBlk = {0}", entry.flRStBlk);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flRLgLen = {0}", entry.flRLgLen);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flRPyLen = {0}", entry.flRPyLen);
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flCrDat = {0}", DateHandlers.MacToDateTime(entry.flCrDat));
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flMdDat = {0}", DateHandlers.MacToDateTime(entry.flMdDat));
DicConsole.DebugWriteLine("DEBUG (AppleMFS plugin)", "entry.flNam0 = {0}", GetStringFromPascal(entry.flNam));
}
offset += (50 + entry.flNam.Length);
}
return true;
}
}
}