/*
 * This file is part of libsamsung-ipc.
 *
 * Copyright (C) 2010-2011 Joerie de Gram <j.de.gram@gmail.com>
 * Copyright (C) 2014 Paul Kocialkowsk <contact@paulk.fr>
 *
 * libsamsung-ipc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * libsamsung-ipc 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with libsamsung-ipc.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdlib.h>
#include <string.h>

#include <samsung-ipc.h>

int ipc_net_plmn_sel_setup(struct ipc_net_plmn_sel_request_data *data,
			   unsigned char mode_sel, const char *plmn,
			   unsigned char act)
{
	size_t plmn_length;

	if (data == NULL)
		return -1;

	memset(data, 0, sizeof(struct ipc_net_plmn_sel_request_data));
	data->mode_sel = mode_sel;

	if (mode_sel == IPC_NET_PLMN_SEL_AUTO) {
		data->act = IPC_NET_ACCESS_TECHNOLOGY_UNKNOWN;
	} else {
		plmn_length = strlen(plmn);
		if (plmn_length > sizeof(data->plmn))
			plmn_length = sizeof(data->plmn);

		memcpy((void *) data->plmn, (void *) plmn, plmn_length);

		/*
		 * If there are less (5 is the usual case) PLMN bytes, fill the
		 * rest with '#'
		 */
		if (plmn_length < sizeof(data->plmn)) {
			memset((void *) ((unsigned char *) data->plmn +
					 plmn_length),
			       '#',
			       sizeof(data->plmn) - plmn_length);
		}

		data->act = act;
	}

	return 0;
}

int ipc_net_regist_setup(struct ipc_net_regist_request_data *data,
			 unsigned char domain)
{
	if (data == NULL)
		return -1;

	memset(data, 0, sizeof(struct ipc_net_regist_request_data));
	data->act = IPC_NET_ACCESS_TECHNOLOGY_UNKNOWN;
	data->domain = domain;

	return 0;
}

unsigned char ipc_net_plmn_list_count_extract(const void *data, size_t size)
{
	struct ipc_net_plmn_list_header *header;

	if (data == NULL || size < sizeof(struct ipc_net_plmn_list_header))
		return 0;

	header = (struct ipc_net_plmn_list_header *) data;

	return header->count;
}

struct ipc_net_plmn_list_entry *ipc_net_plmn_list_entry_extract(
	const void *data, size_t size, unsigned int index)
{
	struct ipc_net_plmn_list_entry *entry = NULL;
	unsigned char count;
	unsigned char i;
	unsigned int offset;

	if (data == NULL)
		return NULL;

	count = ipc_net_plmn_list_count_extract(data, size);
	if (count == 0 || index >= count)
		return NULL;

	offset = sizeof(struct ipc_net_plmn_list_header);

	for (i = 0; i < (index + 1); i++) {
		entry = (struct ipc_net_plmn_list_entry *) (
			(unsigned char *) data + offset);
		offset += sizeof(struct ipc_net_plmn_list_entry);
	}

	if (offset > size)
		return NULL;

	return entry;
}