93 lines
1.9 KiB
C#
93 lines
1.9 KiB
C#
using System.IO;
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using Org.BouncyCastle.Utilities.IO;
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namespace Org.BouncyCastle.Asn1;
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internal class ConstructedOctetStream : BaseInputStream
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{
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private readonly Asn1StreamParser _parser;
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private bool _first = true;
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private Stream _currentStream;
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internal ConstructedOctetStream(Asn1StreamParser parser)
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{
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_parser = parser;
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}
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public override int Read(byte[] buffer, int offset, int count)
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{
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if (_currentStream == null)
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{
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if (!_first)
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{
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return 0;
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}
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Asn1OctetStringParser asn1OctetStringParser = (Asn1OctetStringParser)_parser.ReadObject();
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if (asn1OctetStringParser == null)
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{
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return 0;
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}
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_first = false;
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_currentStream = asn1OctetStringParser.GetOctetStream();
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}
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int num = 0;
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while (true)
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{
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int num2 = _currentStream.Read(buffer, offset + num, count - num);
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if (num2 > 0)
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{
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num += num2;
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if (num == count)
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{
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return num;
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}
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continue;
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}
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Asn1OctetStringParser asn1OctetStringParser2 = (Asn1OctetStringParser)_parser.ReadObject();
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if (asn1OctetStringParser2 == null)
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{
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break;
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}
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_currentStream = asn1OctetStringParser2.GetOctetStream();
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}
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_currentStream = null;
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return num;
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}
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public override int ReadByte()
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{
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if (_currentStream == null)
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{
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if (!_first)
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{
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return 0;
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}
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Asn1OctetStringParser asn1OctetStringParser = (Asn1OctetStringParser)_parser.ReadObject();
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if (asn1OctetStringParser == null)
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{
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return 0;
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}
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_first = false;
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_currentStream = asn1OctetStringParser.GetOctetStream();
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}
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while (true)
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{
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int num = _currentStream.ReadByte();
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if (num >= 0)
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{
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return num;
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}
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Asn1OctetStringParser asn1OctetStringParser2 = (Asn1OctetStringParser)_parser.ReadObject();
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if (asn1OctetStringParser2 == null)
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{
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break;
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}
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_currentStream = asn1OctetStringParser2.GetOctetStream();
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}
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_currentStream = null;
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return -1;
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}
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}
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