public static PalmDatabaseFormat FromBinary(BinaryReader reader)
{
try
{
//create new palm database
var palm = new PalmDatabaseFormat();
//some buffer for reading data
byte[] buffer = new byte[4096];
// Read database name
reader.Read(buffer, 0, 32);
palm.Name = Latin1.GetString(buffer.TakeWhile(data => !data.Equals(0)).ToArray());
// Read attributes
palm.Attributes = (PalmDatabaseAttributes) Enum.ToObject(typeof(PalmDatabaseAttributes), reader.ReadInt16(Endian.BigEndian));
// Read version
palm.Version = reader.ReadInt16(Endian.BigEndian);
// Created time
palm.CreationDate = DateTimeConverter.GetPDBTimeFromTimestamp(reader.ReadUInt32(Endian.BigEndian));
// Modified time
palm.ModificationDate = DateTimeConverter.GetPDBTimeFromTimestamp(reader.ReadUInt32(Endian.BigEndian));
// Last backup time
palm.LastBackupDate = DateTimeConverter.GetPDBTimeFromTimestamp(reader.ReadUInt32(Endian.BigEndian));
// Modification number
palm.ModificationNumber = reader.ReadInt32(Endian.BigEndian);
// Internal offsets
palm._appInfoOffset = reader.ReadInt32(Endian.BigEndian);
palm._sortInfoOffset = reader.ReadInt32(Endian.BigEndian);
// read type and creator
reader.Read(buffer, 0, 8);
palm.Type = Latin1.GetString(buffer, 0, 4);
palm.Creator = Latin1.GetString(buffer, 4, 4);
// More internal data
palm._uniqueIdSeed = reader.ReadInt32(Endian.BigEndian);
palm._nextRecordListID = reader.ReadInt32(Endian.BigEndian);
// Read number of records
ushort numberOfRecords = reader.ReadUInt16(Endian.BigEndian);
for (ushort i = 0; i < numberOfRecords; i++)
{
//create new record
var record = new PalmDatabaseRecord();
//read offset of data
record.Offset = reader.ReadUInt32(Endian.BigEndian);
var category = reader.ReadByte();
record.Attributes = (PalmRecordAttributes) Enum.ToObject(typeof(PalmRecordAttributes), category >> 4);
record.Category = category & 0xf;
// uid
reader.Read(buffer, 0, 3);
record.Id = BitConverter.ToUInt32(new byte[] { buffer[2], buffer[1], buffer[0], 0 }, 0);
// adjust size of previous record
var last = palm.Records.LastOrDefault();
if (last != null)
last.Size = record.Offset - last.Offset;
// add record
palm.Records.Add(record);
}
// set size of last record
var lastRecord = palm.Records.LastOrDefault();
if (lastRecord != null)
lastRecord.Size = (uint)reader.BaseStream.Length - lastRecord.Offset;
foreach (var record in palm.Records)
{
reader.BaseStream.Seek(record.Offset, SeekOrigin.Begin);
record.Data = new byte[record.Size];
reader.Read(record.Data, 0, (int)record.Size);
}
//return the result
return palm;
}
catch (Exception e)
{
throw new Exception("cannot read palm database from binary reader", e);
}
}
public static PalmDatabaseFormat FromBinary(BinaryReader reader)
{
try
{
//create new palm database
var palm = new PalmDatabaseFormat();
//some buffer for reading data
byte[] buffer = new byte[4096];
// Read database name
reader.Read(buffer, 0, 32);
palm.Name = Latin1.GetString(buffer.TakeWhile(data => !data.Equals(0)).ToArray());
// Read attributes
palm.Attributes = (PalmDatabaseAttributes)Enum.ToObject(typeof(PalmDatabaseAttributes), reader.ReadInt16(Endian.BigEndian));
// Read version
palm.Version = reader.ReadInt16(Endian.BigEndian);
// Created time
palm.CreationDate = DateTimeConverter.GetPDBTimeFromTimestamp(reader.ReadUInt32(Endian.BigEndian));
// Modified time
palm.ModificationDate = DateTimeConverter.GetPDBTimeFromTimestamp(reader.ReadUInt32(Endian.BigEndian));
// Last backup time
palm.LastBackupDate = DateTimeConverter.GetPDBTimeFromTimestamp(reader.ReadUInt32(Endian.BigEndian));
// Modification number
palm.ModificationNumber = reader.ReadInt32(Endian.BigEndian);
// Internal offsets
palm._appInfoOffset = reader.ReadInt32(Endian.BigEndian);
palm._sortInfoOffset = reader.ReadInt32(Endian.BigEndian);
// read type and creator
reader.Read(buffer, 0, 8);
palm.Type = Latin1.GetString(buffer, 0, 4);
palm.Creator = Latin1.GetString(buffer, 4, 4);
// More internal data
palm._uniqueIdSeed = reader.ReadInt32(Endian.BigEndian);
palm._nextRecordListID = reader.ReadInt32(Endian.BigEndian);
// Read number of records
ushort numberOfRecords = reader.ReadUInt16(Endian.BigEndian);
for (ushort i = 0; i < numberOfRecords; i++)
{
//create new record
var record = new PalmDatabaseRecord();
//read offset of data
record.Offset = reader.ReadUInt32(Endian.BigEndian);
var category = reader.ReadByte();
record.Attributes = (PalmRecordAttributes)Enum.ToObject(typeof(PalmRecordAttributes), category >> 4);
record.Category = category & 0xf;
// uid
reader.Read(buffer, 0, 3);
record.Id = BitConverter.ToUInt32(new byte[] { buffer[2], buffer[1], buffer[0], 0 }, 0);
// adjust size of previous record
var last = palm.Records.LastOrDefault();
if (last != null)
{
last.Size = record.Offset - last.Offset;
}
// add record
palm.Records.Add(record);
}
// set size of last record
var lastRecord = palm.Records.LastOrDefault();
if (lastRecord != null)
{
lastRecord.Size = (uint)reader.BaseStream.Length - lastRecord.Offset;
}
foreach (var record in palm.Records)
{
reader.BaseStream.Seek(record.Offset, SeekOrigin.Begin);
record.Data = new byte[record.Size];
reader.Read(record.Data, 0, (int)record.Size);
}
//return the result
return(palm);
}
catch (Exception e)
{
throw new Exception("cannot read palm database from binary reader", e);
}
}
