loadlib.cpp

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * 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 2 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 <http://www.gnu.org/licenses/>.
 */
 
#define _CRT_SECURE_NO_DEPRECATE
 
#include "loadlib.h"
#include "mpq_libmpq.h"
#include <cstdio>
 
class MPQFile;
 
u_map_fcc MverMagic = { {'R','E','V','M'} };
 
FileLoader::FileLoader()
{
    data = 0;
    data_size = 0;
    version = 0;
}
 
FileLoader::~FileLoader()
{
    free();
}
 
bool FileLoader::loadFile(std::string const& fileName, bool log)
{
    free();
    MPQFile mf(fileName.c_str());
    if(mf.isEof())
    {
        if (log)
            printf("No such file %s\n", fileName.c_str());
        return false;
    }
 
    data_size = mf.getSize();
 
    data = new uint8 [data_size];
    mf.read(data, data_size);
    mf.close();
    if (prepareLoadedData())
        return true;
 
    printf("Error loading %s", fileName.c_str());
    mf.close();
    free();
    return false;
}
 
bool FileLoader::prepareLoadedData()
{
    // Check version
    version = (file_MVER *) data;
    if (version->fcc != MverMagic.fcc)
        return false;
    if (version->ver != FILE_FORMAT_VERSION)
        return false;
    return true;
}
 
void FileLoader::free()
{
    delete[] data;
    data = 0;
    data_size = 0;
    version = 0;
}