/// <summary>
/// Creates an APDU from an existing buffer building a database of fields as contained inside the APDU
/// </summary>
/// <param name="buffer">The buffer to scan to search the fields.</param>
public CAPDU(byte[] buffer)
{
int offset = 0;
// get message ID
ID = new CAPDUID(buffer, offset, ref offset);
if (0 != ID.Value)
{
// Get the bitmap
Bitmap = new CBitmap(buffer, offset, ref offset);
if (Bitmap.IsSet)
{
// arrived here we can process the fields described inside the bitmap
CFields fields = new CFields();
// offset now points to the beginning of the fields - WE ONLY CONSIDER BITMAP1 as bitmap2 fields are not described in the dictionary
for (int field = 2; field <= 0xFF && 0 < buffer.Length - offset; field++)
{
if (Bitmap.IsBitSet(field))
{
// create and retrieve field
//CField fg = fields.GetField(field);
//CField f = new CField(fg.ID, fg.Type, fg.Minlen, fg.Maxlen);
CField f = fields.GetField(field);
if (f.SetData(buffer, offset, out offset))
{
// save the field inside the list of fields
try
{
AddField(f);
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex, "CHAMP: " + field);
}
}
}
}
}
}
}
/// <summary>
/// Creates an empty APDU with an ID
/// </summary>
public CAPDU(short msgid)
{
ID = new CAPDUID(msgid);
}