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/*
 * 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.
 */

#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "protocol.h"
#include "protocol_private.h"
#include "net.h"
#include "util.h"

#define READ_AS(type, from)	(*((type*)(from)))

int push_data(enum tlv_type type)
{
	int ret = 0;
	switch (type) {
	case TEXT:
		break;
	case FPI1:
		break;
	case TIMESTAMP:
		break;
	case REQUEST:
		break;
	case REPLY:
		break;
	case UUID:
		break;
	default:
		ret = E_UNKNOWN_TYPE;
	}
	return ret;
}

static int push_string(struct tlv_packet *packet, const char *str)
{
	size_t strsize = strlen(str);
	int ret = 0;

	if (strsize + packet->offset >= packet->size) {
		ret = E_TLV_OVERFLOW;
	} else {
		memcpy(packet->data, str, strsize);
	}
	return ret;
}

static int push_fpi1(struct tlv_packet *packet, const char *num)
{
	int ret = 0;

	if (packet->offset + sizeof(fpi1_t) >= packet->size) {
		ret = E_TLV_OVERFLOW;
	} else {
		memcpy(packet->data, num, sizeof(fpi1_t));
	}
	return ret;
}

static int push_timestamp(struct tlv_packet *packet, const char *data)
{
	return 0;
}

static int push_request(struct tlv_packet *packet, const char *data)
{
	return 0;
}

static int push_reply(struct tlv_packet *packet, const char *data)
{
	return 0;
}

static int push_uuid(struct tlv_packet *packet, const char *data)
{
	return 0;
}

size_t parse_tlv(const char *data, size_t cursor, struct tlv *t)
{
	return 0;
}

int clear_data()
{
	return 0;
}

static int push_bytes(struct tlv_packet *packet, size_t size)
{
	return 0;
}

static int push_tlv_header(struct tlv_packet *packet, enum tlv_type type, size_t size)
{
	return 0;
}

int get_tlv(struct tlv_parser *parser, struct tlv *ret)
{
	return 0;
}