DetectFraming()

Framing System.Net.Security.SslStream.DetectFraming ( ReadOnlySpan< byte > bytes )

inlineprivate

Definition at line 1761 of file SslStream.cs.

    {
        int num = -1;
        if (bytes[0] == 22 || bytes[0] == 23 || bytes[0] == 21)
        {
            if (bytes.Length < 3)
            {
                return Framing.Invalid;
            }
            num = (bytes[1] << 8) | bytes[2];
            if (num < 768 || num >= 1280)
            {
                return Framing.Invalid;
            }
            return Framing.SinceSSL3;
        }
        if (bytes.Length < 3)
        {
            return Framing.Invalid;
        }
        if (bytes[2] > 8)
        {
            return Framing.Invalid;
        }
        if (bytes[2] == 1)
        {
            if (bytes.Length >= 5)
            {
                num = (bytes[3] << 8) | bytes[4];
            }
        }
        else if (bytes[2] == 4 && bytes.Length >= 7)
        {
            num = (bytes[5] << 8) | bytes[6];
        }
        if (num != -1)
        {
            if (_framing == Framing.Unknown)
            {
                if (num != 2 && (num < 512 || num >= 1280))
                {
                    return Framing.Invalid;
                }
            }
            else if (num != 2)
            {
                return Framing.Invalid;
            }
        }
        if (!_context.IsServer || _framing == Framing.Unified)
        {
            return Framing.BeforeSSL3;
        }
        return Framing.Unified;
    }

References System.Net.Security.SslStream._context, System.Net.Security.SslStream._framing, System.bytes, and System.Net.Security.SecureChannel.IsServer.

Referenced by System.Net.Security.SslStream.ReceiveBlobAsync< TIOAdapter >().