util.cc

/*
 *          ClickOS Control
 *
 *   file: util.cc
 *
 *          NEC Europe Ltd. PROPRIETARY INFORMATION
 *
 * This software is supplied under the terms of a license agreement
 * or nondisclosure agreement with NEC Europe Ltd. and may not be
 * copied or disclosed except in accordance with the terms of that
 * agreement. The software and its source code contain valuable trade
 * secrets and confidential information which have to be maintained in
 * confidence.
 * Any unauthorized publication, transfer to third parties or duplication
 * of the object or source code - either totally or in part – is
 * prohibited.
 *
 *      Copyright (c) 2016 NEC Europe Ltd. All Rights Reserved.
 *
 * Authors: Filipe Manco <filipe.manco@neclab.eu>
 *
 * NEC Europe Ltd. DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE AND THE WARRANTY AGAINST LATENT
 * DEFECTS, WITH RESPECT TO THE PROGRAM AND THE ACCOMPANYING
 * DOCUMENTATION.
 *
 * No Liability For Consequential Damages IN NO EVENT SHALL NEC Europe
 * Ltd., NEC Corporation OR ANY OF ITS SUBSIDIARIES BE LIABLE FOR ANY
 * DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS
 * OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF INFORMATION, OR
 * OTHER PECUNIARY LOSS AND INDIRECT, CONSEQUENTIAL, INCIDENTAL,
 * ECONOMIC OR PUNITIVE DAMAGES) ARISING OUT OF THE USE OF OR INABILITY
 * TO USE THIS PROGRAM, EVEN IF NEC Europe Ltd. HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 *     THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
 */

#include "util.hh"

#include <fstream>
#include <sstream>


namespace clickos {

int read_click_config(const std::string& path, std::string& config)
{
    std::ostringstream buff;

    std::ifstream stream(path);
    if (!stream.is_open()) {
        printf("Failed to open configuration file '%s'\n", path.c_str());
        return ENOENT;
    }

    buff << stream.rdbuf();
    if (stream.bad()) {
        printf("Failed to read configuration file '%s'\n", path.c_str());
        return EINVAL;
    }

    config = buff.str();

    return 0;
}

void basename(const std::string& path, std::string& name)
{
    std::string::size_type pos;

    pos = path.rfind("/");
    if (pos == std::string::npos) {
        name = path;
    } else {
        name = path.substr(pos + 1);
    }
}

} /* namespace clickos */