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The Bouncy Castle Java APIs for the TLS, including a JSSE provider. The APIs are designed primarily to be used in conjunction with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.tls;

import java.io.IOException;
import java.io.InputStream;

/**
 * An InputStream for an TLS 1.0 connection.
 */
class TlsInputStream
    extends InputStream
{
    private byte[] buf = new byte[1];
    private TlsProtocol handler = null;

    TlsInputStream(TlsProtocol handler)
    {
        this.handler = handler;
    }

    public int available()
        throws IOException
    {
        return this.handler.applicationDataAvailable();
    }

    public int read(byte[] buf, int offset, int len)
        throws IOException
    {
        return this.handler.readApplicationData(buf, offset, len);
    }

    public int read()
        throws IOException
    {
        if (this.read(buf) < 0)
        {
            return -1;
        }
        return buf[0] & 0xff;
    }

    public void close()
        throws IOException
    {
        handler.close();
    }
}