int rl = nextCommand != 0 ? nextCommand : size;

            // read and decode first
            System.arraycopy(this.sbuf, 4, buffer, 0, Smb2Constants.SMB2_HEADER_LENGTH);
            readn(this.in, buffer, Smb2Constants.SMB2_HEADER_LENGTH, rl - Smb2Constants.SMB2_HEADER_LENGTH);

            cur.setReadSize(rl);
            int len = cur.decode(buffer, 0);

            if (len > rl) {

        byte[] token = negoResp.getSecurityBlob();
        final int securityMode =
                (negoResp.getSecurityMode() & Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED) != 0 || trans.isSigningEnforced()
                        ? Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED
                        : Smb2Constants.SMB2_NEGOTIATE_SIGNING_ENABLED;
        boolean anonymous = this.credentials.isAnonymous();
        long sessId = 0;