mirror of
https://github.com/mangosfour/server.git
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113 lines
No EOL
2.8 KiB
C++
113 lines
No EOL
2.8 KiB
C++
/**
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* MaNGOS is a full featured server for World of Warcraft, supporting
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* the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
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*
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* Copyright (C) 2005-2015 MaNGOS project <http://getmangos.eu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* World of Warcraft, and all World of Warcraft or Warcraft art, images,
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* and lore are copyrighted by Blizzard Entertainment, Inc.
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*/
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#include "mpqfile.h"
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#include <deque>
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#include <cstdio>
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#include "StormLib.h"
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MPQFile::MPQFile(HANDLE mpq, const char* filename) :
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eof(false),
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buffer(0),
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pointer(0),
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size(0)
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{
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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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int error = GetLastError();
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if (error != ERROR_FILE_NOT_FOUND)
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fprintf(stderr, "Can't open %s, err=%u!\n", filename, GetLastError());
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eof = true;
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return;
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}
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DWORD hi = 0;
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size = SFileGetFileSize(file, &hi);
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if (hi)
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{
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fprintf(stderr, "Can't open %s, size[hi] = %u!\n", filename, (uint32)hi);
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SFileCloseFile(file);
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eof = true;
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return;
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}
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if (size <= 1)
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{
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fprintf(stderr, "Can't open %s, size = %u!\n", filename, size);
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SFileCloseFile(file);
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eof = true;
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return;
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}
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DWORD read = 0;
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buffer = new char[size];
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if (!SFileReadFile(file, buffer, size, &read, NULL) || size != read)
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{
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fprintf(stderr, "Can't read %s, size=%u read=%u!\n", filename, size, read);
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SFileCloseFile(file);
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eof = true;
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return;
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}
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SFileCloseFile(file);
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}
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size_t MPQFile::read(void* dest, size_t bytes)
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{
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if (eof) { return 0; }
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size_t rpos = (size_t)(pointer + bytes);
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if (rpos > size)
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{
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bytes = (size_t)(size - pointer);
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eof = true;
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}
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memcpy(dest, &(buffer[pointer]), bytes);
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pointer = rpos;
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return bytes;
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}
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void MPQFile::seek(int offset)
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{
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pointer = offset;
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eof = (pointer >= size);
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}
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void MPQFile::seekRelative(int offset)
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{
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pointer += offset;
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eof = (pointer >= size);
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}
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void MPQFile::close()
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{
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if (buffer) { delete[] buffer; }
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buffer = 0;
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eof = true;
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} |