protected void decrypt()

in src/main/java/org/apache/commons/crypto/stream/CtrCryptoInputStream.java [337:358]

• 21 lines of code
• 2 McCabe index (conditional complexity)

    protected void decrypt(final ByteBuffer buf, final int offset, final int len)
            throws IOException {
        final int pos = buf.position();
        final int limit = buf.limit();
        int n = 0;
        while (n < len) {
            buf.position(offset + n);
            buf.limit(offset + n + Math.min(len - n, inBuffer.remaining()));
            inBuffer.put(buf);
            // Do decryption
            try {
                decrypt();
                buf.position(offset + n);
                buf.limit(limit);
                n += outBuffer.remaining();
                buf.put(outBuffer);
            } finally {
                padding = postDecryption(streamOffset - (len - n));
            }
        }
        buf.position(pos);
    }