private void _read()
{
_flags = new LinkInfoFlags(m_io, this, m_root);
_ofsVolumeId = m_io.ReadU4le();
_ofsLocalBasePath = m_io.ReadU4le();
_ofsCommonNetRelLink = m_io.ReadU4le();
_ofsCommonPathSuffix = m_io.ReadU4le();
if (!(M_Io.IsEof)) {
_ofsLocalBasePathUnicode = m_io.ReadU4le();
}
if (!(M_Io.IsEof)) {
_ofsCommonPathSuffixUnicode = m_io.ReadU4le();
}
}
/// <summary>
/// Create a LinkInfo from a given byte array
/// </summary>
/// <param name="ba">The byte array</param>
/// <returns>A LinkInfo object</returns>
public static LinkInfo FromByteArray(byte[] ba)
{
LinkInfo LinkInfo = new LinkInfo();
if (ba.Length < 0x1C)
{
throw new ArgumentException(String.Format("Size of the LinkInfo Structure is less than 28 ({0})", ba.Length));
}
UInt32 LinkInfoSize = BitConverter.ToUInt32(ba, 0);
if (LinkInfoSize > ba.Length)
{
throw new ArgumentException(String.Format("The LinkInfoSize is {0} is incorrect (expected {1})", LinkInfoSize, ba.Length));
}
UInt32 LinkInfoHeaderSize = BitConverter.ToUInt32(ba, 4);
if (LinkInfoHeaderSize < 0x1C)
{
throw new ArgumentException(String.Format("The LinkInfoHeaderSize is {0} is incorrect)", LinkInfoHeaderSize));
}
LinkInfoFlags LinkInfoFlags = (LinkInfoFlags)BitConverter.ToUInt32(ba, 8);
// TODO: check offsets
UInt32 VolumeIDOffset = BitConverter.ToUInt32(ba, 12);
UInt32 LocalBasePathOffset = BitConverter.ToUInt32(ba, 16);
UInt32 CommonNetworkRelativeLinkOffset = BitConverter.ToUInt32(ba, 20);
UInt32 CommonPathSuffixOffset = BitConverter.ToUInt32(ba, 24);
UInt32 LocalBasePathOffsetUnicode = 0;
UInt32 CommonPathSuffixOffsetUnicode = 0;
if (LinkInfoHeaderSize > 0x1C)
{
if ((LinkInfoFlags & LinkInfoFlags.VolumeIDAndLocalBasePath) != 0)
{
LocalBasePathOffsetUnicode = BitConverter.ToUInt32(ba, 28);
}
if ((LinkInfoFlags & LinkInfoFlags.CommonNetworkRelativeLinkAndPathSuffix) != 0)
{
CommonPathSuffixOffsetUnicode = BitConverter.ToUInt32(ba, 32);
}
}
byte[] tmp;
if ((LinkInfoFlags & LinkInfoFlags.VolumeIDAndLocalBasePath) != 0)
{
tmp = ba.Skip((int)VolumeIDOffset).ToArray();
LinkInfo.VolumeID = VolumeID.FromByteArray(tmp);
tmp = ba.Skip((int)LocalBasePathOffset).ToArray();
LinkInfo.LocalBasePath = Encoding.Default.GetString(tmp.Take(Array.IndexOf(tmp, (byte)0x00) + 1).ToArray()).TrimEnd(new char[] { (char)0 });
}
if ((LinkInfoFlags & LinkInfoFlags.CommonNetworkRelativeLinkAndPathSuffix) != 0)
{
tmp = ba.Skip((int)CommonNetworkRelativeLinkOffset).ToArray();
LinkInfo.CommonNetworkRelativeLink = CommonNetworkRelativeLink.FromByteArray(tmp);
tmp = ba.Skip((int)CommonPathSuffixOffset).ToArray();
LinkInfo.CommonPathSuffix = Encoding.Default.GetString(tmp.Take(Array.IndexOf(tmp, (byte)0x00) + 1).ToArray()).TrimEnd(new char[] { (char)0 });
}
if (LinkInfoHeaderSize >= 0x24)
{
if ((LinkInfoFlags & LinkInfoFlags.VolumeIDAndLocalBasePath) != 0)
{
int Index = 0;
tmp = ba.Skip((int)LocalBasePathOffsetUnicode).ToArray();
for (int i = 0; i < tmp.Length - 1; i++)
{
if (tmp[i] == 0x00 && tmp[i + 1] == 0x00)
{
Index = i;
break;
}
}
LinkInfo.LocalBasePathUnicode = Encoding.Unicode.GetString(tmp.Take(Index + 1).ToArray()).TrimEnd(new char[] { (char)0 });
}
if ((LinkInfoFlags & LinkInfoFlags.CommonNetworkRelativeLinkAndPathSuffix) != 0)
{
int Index = 0;
tmp = ba.Skip((int)CommonPathSuffixOffsetUnicode).ToArray();
for (int i = 0; i < tmp.Length - 1; i++)
{
if (tmp[i] == 0x00 && tmp[i + 1] == 0x00)
{
Index = i;
break;
}
}
LinkInfo.CommonPathSuffixUnicode = Encoding.Unicode.GetString(tmp.Take(Index + 1).ToArray()).TrimEnd(new char[] { (char)0 });
}
}
return(LinkInfo);
}
