private void ParseCons(IAsn1TaggedEventHandler handler, int len)
{
var tag2 = new Asn1Tag();
var holder = new IntHolder();
var byteCount = base.ByteCount;
while (true)
{
ParseElement(handler, tag2, holder);
if (len == Asn1Status.IndefiniteLength)
{
if (tag2.IsEoc() && (holder.Value == 0))
{
return;
}
continue;
}
if ((base.ByteCount - byteCount) >= len)
{
return;
}
}
}
private void ParseElement(IAsn1TaggedEventHandler handler, Asn1Tag tag, IntHolder len)
{
_parserCaptureBuffer.Seek(0L, SeekOrigin.Begin);
_parserCaptureBuffer.SetLength(0L);
len.Value = DecodeTagAndLength(tag);
if (!tag.IsEoc() || (len.Value != 0))
{
handler.StartElement(tag, len.Value, _parserCaptureBuffer.ToArray());
_parserCaptureBuffer.Seek(0L, SeekOrigin.Begin);
_parserCaptureBuffer.SetLength(0L);
if ((len.Value > 0) || (len.Value == Asn1Status.IndefiniteLength))
{
if (tag.Constructed)
{
ParseCons(handler, len.Value);
}
else
{
ParsePrim(handler, len.Value);
}
}
handler.EndElement(tag);
}
}
protected void MovePastEoc(bool saveData)
{
var tag = new Asn1Tag();
var num = 1;
while (num > 0)
{
var nbytes = DecodeTagAndLength(tag);
if (nbytes > 0)
{
if (saveData)
{
Capture(nbytes);
}
else
{
Skip(nbytes);
}
}
else if (nbytes == Asn1Status.IndefiniteLength)
{
num++;
}
else if (tag.IsEoc() && (nbytes == 0))
{
num--;
}
}
}
public static int CalcIndefLen(byte[] data, int offset, int len)
{
Asn1BerDecodeBuffer buffer;
if ((offset == 0) && (len == data.Length))
{
buffer = new Asn1BerDecodeBuffer(data);
}
else
{
var destinationArray = new byte[len];
Array.Copy(data, offset, destinationArray, 0, len);
buffer = new Asn1BerDecodeBuffer(destinationArray);
}
var tag = new Asn1Tag();
var num = buffer.DecodeTagAndLength(tag);
if (num == Asn1Status.IndefiniteLength)
{
var num2 = 1;
num = 0;
while (num2 > 0)
{
var byteCount = buffer.ByteCount;
var num4 = buffer.DecodeTagAndLength(tag);
num += buffer.ByteCount - byteCount;
if (num4 > 0)
{
buffer.Skip(num4);
num += num4;
}
else
{
if (num4 == Asn1Status.IndefiniteLength)
{
num2++;
continue;
}
if (tag.IsEoc() && (num4 == 0))
{
num2--;
}
}
}
}
return(num);
}
public static int CalcIndefLen(byte[] data, int offset, int len)
{
Asn1BerDecodeBuffer buffer;
if ((offset == 0) && (len == data.Length))
{
buffer = new Asn1BerDecodeBuffer(data);
}
else
{
var destinationArray = new byte[len];
Array.Copy(data, offset, destinationArray, 0, len);
buffer = new Asn1BerDecodeBuffer(destinationArray);
}
var tag = new Asn1Tag();
var num = buffer.DecodeTagAndLength(tag);
if (num == Asn1Status.IndefiniteLength)
{
var num2 = 1;
num = 0;
while (num2 > 0)
{
var byteCount = buffer.ByteCount;
var num4 = buffer.DecodeTagAndLength(tag);
num += buffer.ByteCount - byteCount;
if (num4 > 0)
{
buffer.Skip(num4);
num += num4;
}
else
{
if (num4 == Asn1Status.IndefiniteLength)
{
num2++;
continue;
}
if (tag.IsEoc() && (num4 == 0))
{
num2--;
}
}
}
}
return num;
}
private void ParseElement(IAsn1TaggedEventHandler handler, Asn1Tag tag, IntHolder len)
{
_parserCaptureBuffer.Seek(0L, SeekOrigin.Begin);
_parserCaptureBuffer.SetLength(0L);
len.Value = DecodeTagAndLength(tag);
if (!tag.IsEoc() || (len.Value != 0))
{
handler.StartElement(tag, len.Value, _parserCaptureBuffer.ToArray());
_parserCaptureBuffer.Seek(0L, SeekOrigin.Begin);
_parserCaptureBuffer.SetLength(0L);
if ((len.Value > 0) || (len.Value == Asn1Status.IndefiniteLength))
{
if (tag.Constructed)
{
ParseCons(handler, len.Value);
}
else
{
ParsePrim(handler, len.Value);
}
}
handler.EndElement(tag);
}
}
private void ParseCons(IAsn1TaggedEventHandler handler, int len)
{
var tag2 = new Asn1Tag();
var holder = new IntHolder();
var byteCount = base.ByteCount;
while (true)
{
ParseElement(handler, tag2, holder);
if (len == Asn1Status.IndefiniteLength)
{
if (tag2.IsEoc() && (holder.Value == 0))
{
return;
}
continue;
}
if ((base.ByteCount - byteCount) >= len)
{
return;
}
}
}
protected void MovePastEoc(bool saveData)
{
var tag = new Asn1Tag();
var num = 1;
while (num > 0)
{
var nbytes = DecodeTagAndLength(tag);
if (nbytes > 0)
{
if (saveData)
{
Capture(nbytes);
}
else
{
Skip(nbytes);
}
}
else if (nbytes == Asn1Status.IndefiniteLength)
{
num++;
}
else if (tag.IsEoc() && (nbytes == 0))
{
num--;
}
}
}
