aaru-dps/Aaru
1
0
Fork 0
mirror of https://github.com/aaru-dps/Aaru.git synced 2025-12-16 19:24:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Move common Apple boot block information and structs to its own class.

Browse Source
This commit is contained in:
Natalia Portillo
2020-02-19 00:12:15 +00:00
parent 80a38c860d
commit 7ac5e40965
12 changed files with 309 additions and 228 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
DiscImageChef.Filesystems/AppleMFS/Info.cs
View File

@@ -64,7 +64,6 @@ namespace DiscImageChef.Filesystems.AppleMFS
var sb = new StringBuilder();
var mdb = new MFS_MasterDirectoryBlock();
var bb = new MFS_BootBlock();
byte[] pString = new byte[16];
@@ -93,40 +92,6 @@ namespace DiscImageChef.Filesystems.AppleMFS
Array.Copy(mdbSector, 0x024, variableSize, 0, mdb.drVNSiz + 1);
mdb.drVN = StringHandlers.PascalToString(variableSize, Encoding);
bb.bbID = BigEndianBitConverter.ToUInt16(bbSector, 0x000);
if(bb.bbID == MFSBB_MAGIC)
{
bb.bbEntry = BigEndianBitConverter.ToUInt32(bbSector, 0x002);
bb.boot_flags = bbSector[0x006];
bb.bbVersion = bbSector[0x007];
bb.bbPageFlags = BigEndianBitConverter.ToInt16(bbSector, 0x008);
Array.Copy(mdbSector, 0x00A, pString, 0, 16);
bb.bbSysName = StringHandlers.PascalToString(pString, Encoding);
Array.Copy(mdbSector, 0x01A, pString, 0, 16);
bb.bbShellName = StringHandlers.PascalToString(pString, Encoding);
Array.Copy(mdbSector, 0x02A, pString, 0, 16);
bb.bbDbg1Name = StringHandlers.PascalToString(pString, Encoding);
Array.Copy(mdbSector, 0x03A, pString, 0, 16);
bb.bbDbg2Name = StringHandlers.PascalToString(pString, Encoding);
Array.Copy(mdbSector, 0x04A, pString, 0, 16);
bb.bbScreenName = StringHandlers.PascalToString(pString, Encoding);
Array.Copy(mdbSector, 0x05A, pString, 0, 16);
bb.bbHelloName = StringHandlers.PascalToString(pString, Encoding);
Array.Copy(mdbSector, 0x06A, pString, 0, 16);
bb.bbScrapName = StringHandlers.PascalToString(pString, Encoding);
bb.bbCntFCBs = BigEndianBitConverter.ToUInt16(bbSector, 0x07A);
bb.bbCntEvts = BigEndianBitConverter.ToUInt16(bbSector, 0x07C);
bb.bb128KSHeap = BigEndianBitConverter.ToUInt32(bbSector, 0x07E);
bb.bb256KSHeap = BigEndianBitConverter.ToUInt32(bbSector, 0x082);
bb.bbSysHeapSize = BigEndianBitConverter.ToUInt32(bbSector, 0x086);
}
else
bb.bbID = 0x0000;
sb.AppendLine("Apple Macintosh File System");
sb.AppendLine();
sb.AppendLine("Master Directory Block:");
@@ -150,37 +115,13 @@ namespace DiscImageChef.Filesystems.AppleMFS
sb.AppendFormat("{0} unused allocation blocks.", mdb.drFreeBks).AppendLine();
sb.AppendFormat("Volume name: {0}", mdb.drVN).AppendLine();
if(bb.bbID == MFSBB_MAGIC)
string bootBlockInfo = AppleCommon.GetBootBlockInformation(bbSector, Encoding);
if(bootBlockInfo != null)
{
sb.AppendLine("Volume is bootable.");
sb.AppendLine();
sb.AppendLine("Boot Block:");
if((bb.boot_flags & 0x40) == 0x40)
sb.AppendLine("Boot block should be executed.");
if((bb.boot_flags & 0x80) == 0x80)
sb.AppendLine("Boot block is in new unknown format.");
else
{
if(bb.bbPageFlags > 0)
sb.AppendLine("Allocate secondary sound buffer at boot.");
else if(bb.bbPageFlags < 0)
sb.AppendLine("Allocate secondary sound and video buffers at boot.");
sb.AppendFormat("System filename: {0}", bb.bbSysName).AppendLine();
sb.AppendFormat("Finder filename: {0}", bb.bbShellName).AppendLine();
sb.AppendFormat("Debugger filename: {0}", bb.bbDbg1Name).AppendLine();
sb.AppendFormat("Disassembler filename: {0}", bb.bbDbg2Name).AppendLine();
sb.AppendFormat("Startup screen filename: {0}", bb.bbScreenName).AppendLine();
sb.AppendFormat("First program to execute at boot: {0}", bb.bbHelloName).AppendLine();
sb.AppendFormat("Clipboard filename: {0}", bb.bbScrapName).AppendLine();
sb.AppendFormat("Maximum opened files: {0}", bb.bbCntFCBs * 4).AppendLine();
sb.AppendFormat("Event queue size: {0}", bb.bbCntEvts).AppendLine();
sb.AppendFormat("Heap size with 128KiB of RAM: {0} bytes", bb.bb128KSHeap).AppendLine();
sb.AppendFormat("Heap size with 256KiB of RAM: {0} bytes", bb.bb256KSHeap).AppendLine();
sb.AppendFormat("Heap size with 512KiB of RAM or more: {0} bytes", bb.bbSysHeapSize).AppendLine();
}
sb.AppendLine(bootBlockInfo);
}
else
sb.AppendLine("Volume is not bootable.");
@@ -195,7 +136,7 @@ namespace DiscImageChef.Filesystems.AppleMFS
XmlFsType.BackupDateSpecified = true;
}
XmlFsType.Bootable = bb.bbID == MFSBB_MAGIC;
XmlFsType.Bootable = bootBlockInfo != null;
XmlFsType.Clusters = mdb.drNmAlBlks;
XmlFsType.ClusterSize = mdb.drAlBlkSiz;