/*
 *  Copyright (c) 2014 Samsung Electronics Co., Ltd All Rights Reserved
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License
 */
/**
 * @file        src/helpers/session/session.cpp
 * @author      Radoslaw Bartosiak <r.bartosiak@samsung.com>
 * @author      Aleksander Zdyb <a.zdyb@samsung.com>
 * @author      Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>
 * @version     1.0
 * @brief       Implementation of external libcynara-session API
 */

#include <cstring>
#include <string>
#include <sys/stat.h>

#include <attributes/attributes.h>

#include <cynara-session.h>

CYNARA_API
char *cynara_session_from_pid(pid_t client_pid) {
    std::string path = std::string("/proc/") + std::to_string(client_pid);

    struct stat st;
    if (stat(path.c_str(), &st) < 0)
        return nullptr;

    std::string session = std::to_string(st.st_ctim.tv_sec) + path;
    return strdup(session.c_str());
}