Legends-of-Azeroth-Pandaria-5.4.8

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/*
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 * Copyright (C) 2011-2016 Project SkyFire <http://www.projectskyfire.org/>
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 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
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 * Copyright (C) 2005-2016 MaNGOS <http://getmangos.com/>
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 *
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 * This program is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License as published by the
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 * Free Software Foundation; either version 3 of the License, or (at your
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 * option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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 * more details.
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 *
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 * You should have received a copy of the GNU General Public License along
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 * with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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#define _CRT_SECURE_NO_DEPRECATE
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#include "loadlib.h"
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#include <cstdio>
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u_map_fcc MverMagic = { {'R','E','V','M'} };
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FileLoader::FileLoader()
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{
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    data = 0;
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    data_size = 0;
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    version = 0;
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}
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FileLoader::~FileLoader()
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{
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    free();
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}
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bool FileLoader::loadFile(HANDLE mpq, char* filename, bool log)
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{
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    free();
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    HANDLE file;
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    if (!SFileOpenFileEx(mpq, filename, SFILE_OPEN_PATCHED_FILE, &file))
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    {
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        if (log)
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            printf("No such file %s\n", filename);
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        return false;
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    }
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    data_size = SFileGetFileSize(file, NULL);
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    data = new uint8[data_size];
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    if (data)
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    {
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        SFileReadFile(file, data, data_size, NULL/*bytesRead*/, NULL);
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        if (prepareLoadedData())
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        {
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            SFileCloseFile(file);
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            return true;
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        }
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    }
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    printf("Error loading %s\n", filename);
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    SFileCloseFile(file);
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    free();
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    return false;
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}
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bool FileLoader::prepareLoadedData()
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{
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    // Check version
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    version = reinterpret_cast<file_MVER*>(data);
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    if (version->fcc != MverMagic.fcc)
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        return false;
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    if (version->ver != FILE_FORMAT_VERSION)
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        return false;
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    return true;
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}
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void FileLoader::free()
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{
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    if (data) delete[] data;
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    data = 0;
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    data_size = 0;
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    version = 0;
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}
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