auditd-plugin-clickhouse/utils.cpp

/*
 * This is an auditd plugin for sending auditd data
 * to clickhouse DB.
 * Copyright (C) 2020 Aleksei Nikiforov <darktemplar@basealt.ru>
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 *
 */

#include "utils.hpp"

#include <stdlib.h>

std::string string_or_null(const char *data)
{
	return (data) ? data : std::string();
}

std::string string_or_null_and_free(const char *data)
{
	std::string result = string_or_null(data);
	free((void*) data);
	return result;
}

std::string sanitize_column_name(const std::string &name)
{
	auto result = name;

	std::replace(result.begin(), result.end(), '-', '_');

	return result;
}

bool is_valid_table_name(const std::string &value)
{
	return (std::find_if_not(value.begin(), value.end(), [] (const char c) { return (std::isalnum(c) || (strchr("_", c) != NULL)); } ) == value.end());
}