Gameconfig: Add game configs parser

public/IGameConfigs.h

@@ -0,0 +1,139 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod
+ * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ * 
+ * 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/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
+#ifndef _INCLUDE_IGAMECONFIG_H_
+#define _INCLUDE_IGAMECONFIG_H_
+
+#include <ITextParsers.h>
+
+/**
+ * @brief Describes a game private data config file
+ */
+class IGameConfig
+{
+public:
+	/**
+	 * @brief Returns an offset value.
+	 *
+	 * @param key			Key to retrieve from the offset section.
+	 * @param value			Pointer to store the offset value in.
+	 * @return				True if found, false otherwise.
+	 */
+	virtual bool GetOffset(const char *key, int *value) = 0;
+
+	/**
+	 * @brief Returns an offset value from given class.
+	 *
+	 * @param classname		class name to match from the offset section.
+	 * @param key			Key to retrieve from the offset section.
+	 * @param value			Pointer to store the offset value in.
+	 * @return				True if found, false otherwise.
+	 */
+	virtual bool GetOffsetByClass(const char *classname, const char *key, int *value) = 0;
+ 
+	/**
+	 * @brief Returns the value of a key from the "Keys" section.
+	 *
+	 * @param key			Key to retrieve from the Keys section.
+	 * @return				String containing the value, or NULL if not found.
+	 */
+	virtual const char *GetKeyValue(const char *key) = 0;
+
+	/**
+	 * @brief Retrieves a cached memory signature.
+	 *
+	 * @param key			Name of the signature.
+	 * @param addr			Pointer to store the memory address in.
+	 *						(NULL is copied if signature is not found in binary).
+	 * @return				True if the section exists and key for current
+	 *						platform was found, false otherwise.
+	 */
+	virtual bool GetMemSig(const char *key, void **addr) = 0;
+
+	/**
+	 * @brief Retrieves the value of an address from the "Address" section.
+	 *
+	 * @param key			Key to retrieve from the Address section.
+	 * @param addr          Pointer to store the memory address.
+	 * @return				True on success, false on failure.
+	 */
+	virtual bool GetAddress(const char *key, void **addr) = 0;
+};
+
+/**
+ * @brief Manages game config files
+ */
+class IGameConfigManager
+{
+public:
+	/**
+	 * @brief Loads or finds an already loaded game config file.  
+	 *
+	 * @param file		File to load.  The path must be relative to the 
+	 *					'gamedata' folder and the extension should be 
+	 *					omitted.
+	 * @param pConfig	Pointer to store the game config pointer.  Pointer 
+	 *					will be valid even on failure.
+	 * @param error		Optional error message buffer.
+	 * @param maxlength	Maximum length of the error buffer.
+	 * @return			True on success, false if the file failed.
+	 */
+	virtual bool LoadGameConfigFile(const char *file, IGameConfig **pConfig, char *error, size_t maxlength) = 0;
+
+	/**
+	 * @brief Closes an IGameConfig pointer.  Since a file can be loaded 
+	 * more than once, the file will not actually be removed from memory 
+	 * until it is closed once for each call to LoadGameConfigfile().
+	 *
+	 * @param cfg		Pointer to the IGameConfig to close.
+	 */
+	virtual void CloseGameConfigFile(IGameConfig *cfg) = 0;
+
+	/**
+	 * @brief Adds a custom gamedata section hook.
+	 *
+	 * @param sectionname	Section name to hook.
+	 * @param listener		Listener callback.
+	 * @noreturn
+	 */
+	virtual void AddUserConfigHook(const char *sectionname, ITextListener_SMC *listener) = 0;
+
+	/**
+	 * @brief Removes a custom gamedata section hook.
+	 *
+	 * @param sectionname	Section name to unhook.
+	 * @param listener		Listener callback.
+	 * @noreturn
+	 */
+	virtual void RemoveUserConfigHook(const char *sectionname, ITextListener_SMC *listener) = 0;
+};
+
+#endif //_INCLUDE_IGAMECONFIG_H_

public/memtools/MemoryUtils.cpp

@@ -28,7 +28,7 @@
  */
 
 #include "MemoryUtils.h"
-#include "amxxmodule.h"
+#include <stdio.h> // sscanf
 
 #if defined(__linux__)
 	#include <fcntl.h>
@@ -159,6 +159,13 @@ void *MemoryUtils::ResolveSymbol(void *handle, const char *symbol)
 	
 #elif defined(__linux__)
 
+	void *addr = dlsym(handle, symbol);
+
+	if (addr)
+	{
+		return addr;
+	}
+
 	struct link_map *dlmap;
 	struct stat dlstat;
 	int dlfile;