/*
 * Usurpataion --- clinet-server protocol implementation.
 *
 * Copyright (C) 2019 Ramūnas Mažeikis
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; version 2.1
 * of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

/**
 * Common parts of protocol implementation. Handling of anything that actually
 * deals with connection descriptor has to be implemented by device and daemon
 * separately.
 */

#ifndef PROTOCOL_PRIVATE_H
#define PROTOCOL_PRIVATE_H

#include "protocol_private.h"

/**
 * Convenience function that pushes bytes to the end of a packet and reports
 * potential overflow.
 *
 * In case of detected overflow nothing is done to the packet.
 */
int push_bytes(struct tlv_packet *packet, char *data, size_t size);

/**
 * Convenience function that forms a tlv header at the end of a packet. Reports
 * potential overflow.
 *
 * In case of detected overflow nothing is done to the packet.
 */
int push_tlv_header(struct tlv_packet *packet, enum tlv_type type, size_t size);

#endif /* PROTOCOL_PRIVATE_H */