[Rel21] Stage 1 of updates for Rel21 Build System

dep/loadlib/loadlib.cpp

@@ -0,0 +1,168 @@
+/**
+ * MaNGOS is a full featured server for World of Warcraft, supporting
+ * the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
+ *
+ * Copyright (C) 2005-2015  MaNGOS project <http://getmangos.eu>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * World of Warcraft, and all World of Warcraft or Warcraft art, images,
+ * and lore are copyrighted by Blizzard Entertainment, Inc.
+ */
+
+#include "loadlib.h"
+
+ArchiveSet gOpenArchives;
+
+ArchiveSetBounds GetArchivesBounds()
+{
+return ArchiveSetBounds(gOpenArchives.begin(), gOpenArchives.end());
+}
+
+bool OpenArchive(char const* mpqFileName, HANDLE* mpqHandlePtr /*= NULL*/)
+{
+    HANDLE mpqHandle;
+    
+    if (!SFileOpenArchive(mpqFileName, 0, MPQ_OPEN_READ_ONLY, &mpqHandle))
+        return false;
+    
+    gOpenArchives.push_back(mpqHandle);
+    
+    if (mpqHandlePtr)
+        *mpqHandlePtr = mpqHandle;
+    
+    return true;
+}
+
+bool OpenNewestFile(char const* filename, HANDLE* fileHandlerPtr)
+{
+    for (ArchiveSet::const_reverse_iterator i = gOpenArchives.rbegin(); i != gOpenArchives.rend();++i)
+    {
+        // always prefer get updated file version
+        if (SFileOpenFileEx(*i, filename, SFILE_OPEN_PATCHED_FILE, fileHandlerPtr))
+            return true;
+    }
+    
+    return false;
+}
+
+bool ExtractFile(char const* mpq_name, std::string const& filename)
+{
+    for (ArchiveSet::const_reverse_iterator i = gOpenArchives.rbegin(); i != gOpenArchives.rend();++i)
+    {
+        HANDLE fileHandle;
+        if (!SFileOpenFileEx(*i, mpq_name, SFILE_OPEN_PATCHED_FILE, &fileHandle))
+            continue;
+
+        if (SFileGetFileSize(fileHandle, NULL) == 0)        // some files removed in next updates and its reported  size 0
+        {
+            printf("Skipping zero-size file: %s\n", mpq_name);
+            SFileCloseFile(fileHandle);
+            return false;
+        }
+
+        SFileCloseFile(fileHandle);
+
+        if (!SFileExtractFile(*i, mpq_name, filename.c_str(), SFILE_OPEN_PATCHED_FILE))
+        {
+            printf("Can't extract file: %s\n", mpq_name);
+            return false;
+        }
+    }
+
+    return true;
+}
+
+void CloseArchives()
+{
+    for (ArchiveSet::const_iterator i = gOpenArchives.begin(); i != gOpenArchives.end();++i)
+        SFileCloseArchive(*i);
+
+    gOpenArchives.clear();
+}
+
+FileLoader::FileLoader()
+{
+    data = 0;
+    data_size = 0;
+    version = 0;
+}
+
+FileLoader::~FileLoader()
+{
+    free();
+}
+
+bool FileLoader::loadFile(char* filename, bool log)
+{
+    free();
+    HANDLE fileHandle = 0;
+    
+    if (!OpenNewestFile(filename, &fileHandle))
+    {
+        if (log)
+            { printf("No such file %s\n", filename); }
+        return false;
+    }
+
+    data_size = SFileGetFileSize(fileHandle, NULL);
+
+    data = new uint8 [data_size];
+    if (!data)
+    {
+        SFileCloseFile(fileHandle);
+        return false;
+    }
+
+    if (!SFileReadFile(fileHandle, data, data_size, NULL, NULL))
+    {
+        if (log)
+            printf("Can't read file %s\n", filename);
+
+        SFileCloseFile(fileHandle);
+        return false;
+    }
+
+    SFileCloseFile(fileHandle);
+
+    if (!prepareLoadedData())
+    {
+        printf("Error loading %s\n\n", filename);
+        free();
+        return false;
+    }
+
+    return true;
+
+}
+
+bool FileLoader::prepareLoadedData()
+{
+    // Check version
+    version = (file_MVER*) data;
+    if (version->fcc != 'MVER')
+        { return false; }
+    if (version->ver != FILE_FORMAT_VERSION)
+        { return false; }
+    return true;
+}
+
+void FileLoader::free()
+{
+    if (data) { delete[] data; }
+    data = 0;
+    data_size = 0;
+    version = 0;
+}