-Fixed amb1416: Fixed a class of crashes caused by improper cvar removal handling. This encompasses a lot of crazy internal changes. Thank goodness I never have to do this for OB.

-Removed unused update tool
-Bumped version for tagging

--HG--
branch : sourcemm-1.4.4
extra : convert_revision : svn%3Ac2935e3e-5518-0410-8daf-afa5dab7d4e3/branches/sourcemm-1.4.4%40705

sourcemm/CSmmAPI.cpp

@@ -225,22 +225,6 @@ void *CSmmAPI::MetaFactory(const char *iface, int *_ret, PluginId *id)
 #define ENGINEW32_OFFS	38
 #define IA32_CALL		0xE8
 
-bool vcmp(const void *_addr1, const void *_addr2, size_t len)
-{
-	unsigned char *addr1 = (unsigned char *)_addr1;
-	unsigned char *addr2 = (unsigned char *)_addr2;
-
-	for (size_t i=0; i<len; i++)
-	{
-		if (addr2[i] == '*')
-			continue;
-		if (addr1[i] != addr2[i])
-			return false;
-	}
-
-	return true;
-}
-
 //Thanks to fysh for the idea of extracting info from "echo" and for
 // having the original offsets at hand!
 bool CSmmAPI::CacheCmds()
@@ -260,20 +244,20 @@ bool CSmmAPI::CacheCmds()
 			callback = ((ConCommand *)pBase)->GetCallback();
 			ptr = (unsigned char *)callback;
 		#ifdef OS_LINUX
-			if (vcmp(ptr, ENGINE486_SIG, SIGLEN))
+			if (UTIL_VerifySignature(ptr, ENGINE486_SIG, SIGLEN))
 			{
 				offs = ENGINE486_OFFS;
 			}
-			else if (vcmp(ptr, ENGINE686_SIG, SIGLEN))
+			else if (UTIL_VerifySignature(ptr, ENGINE686_SIG, SIGLEN))
 			{
 				offs = ENGINE686_OFFS;
 			}
-			else if (vcmp(ptr, ENGINEAMD_SIG, SIGLEN))
+			else if (UTIL_VerifySignature(ptr, ENGINEAMD_SIG, SIGLEN))
 			{
 				offs = ENGINEAMD_OFFS;
 			}
 		#elif defined OS_WIN32 // Only one Windows engine binary so far...
-			if (vcmp(ptr, ENGINEW32_SIG, SIGLEN))
+			if (UTIL_VerifySignature(ptr, ENGINEW32_SIG, SIGLEN))
 			{
 				offs = ENGINEW32_OFFS;
 			}
@@ -541,45 +525,22 @@ int CSmmAPI::GetGameDLLVersion()
 /* :TODO: Make this prettier */
 bool CSmmAPI::CacheUserMessages()
 {
-	SourceHook::MemFuncInfo info = {true, -1, 0, 0};
-	SourceHook::GetFuncInfo(&IServerGameDLL::GetUserMessageInfo, info);
-
-	/* Get address of original GetUserMessageInfo() */
-	char *vfunc = reinterpret_cast<char *>(g_GameDllPatch->GetOrigFunc(info.vtbloffs, info.vtblindex));
-
-	/* If we can't get original function, that means there's no hook */
-	if (vfunc == NULL)
-	{
-		/* Get virtual function address 'manually' then */
-		char *adjustedptr = reinterpret_cast<char *>(g_GameDll.pGameDLL) + info.thisptroffs + info.vtbloffs;
-		char **vtable = *reinterpret_cast<char ***>(adjustedptr);
-
-		vfunc = vtable[info.vtblindex];
-	}
-
-	/* Oh dear, we have a relative jump on our hands
-	 * PVK II on Windows made me do this, but I suppose it doesn't hurt to check this on Linux too...
-	 */
-	if (*vfunc == '\xE9')
-	{
-		/* Get address from displacement...
-		 *
-		 * Add 5 because it's relative to next instruction:
-		 * Opcode <1 byte> + 32-bit displacement <4 bytes> 
-		 */
-		vfunc = vfunc + *reinterpret_cast<int *>(vfunc + 1) + 5;
-	}
-
 	UserMsgDict *dict = NULL;
+	char *vfunc = UTIL_GetOrigFunction(&IServerGameDLL::GetUserMessageInfo, g_GameDll.pGameDLL, g_GameDllPatch);
 
-	if (vcmp(vfunc, MSGCLASS_SIG, MSGCLASS_SIGLEN))
+	if (!vfunc)
+	{
+		return false;
+	}
+
+	if (UTIL_VerifySignature(vfunc, MSGCLASS_SIG, MSGCLASS_SIGLEN))
 	{
 		/* Get address of CUserMessages instance */
 		char **userMsgClass = *reinterpret_cast<char ***>(vfunc + MSGCLASS_OFFS);
 
 		/* Get address of CUserMessages::m_UserMessages */
 		dict = reinterpret_cast<UserMsgDict *>(*userMsgClass);
-	} else if (vcmp(vfunc, MSGCLASS2_SIG, MSGCLASS2_SIGLEN)) {
+	} else if (UTIL_VerifySignature(vfunc, MSGCLASS2_SIG, MSGCLASS2_SIGLEN)) {
 	#ifdef OS_WIN32
 		/* If we get here, the code is possibly inlined like in Dystopia */
 
@@ -596,7 +557,7 @@ bool CSmmAPI::CacheUserMessages()
 		dict = reinterpret_cast<UserMsgDict *>(*userMsgClass);
 	#endif
 	#ifdef OS_WIN32
-	} else if (vcmp(vfunc, MSGCLASS3_SIG, MSGCLASS3_SIGLEN)) {
+	} else if (UTIL_VerifySignature(vfunc, MSGCLASS3_SIG, MSGCLASS3_SIGLEN)) {
 		/* Get address of CUserMessages instance */
 		char **userMsgClass = *reinterpret_cast<char ***>(vfunc + MSGCLASS3_OFFS);
 

sourcemm/changelog.txt

@@ -1,12 +1,13 @@
-2008/??/?? 1.4.4:
+2008/07/26 1.4.4:
  - Fixed a bug where loading plugins built for MM:S 1.3 or older (API ver <= 9)
    would cause a crash.
  - Fixed a bug where loading plugins using VDF files caused Metamod:Source
-   to crash on The Ship.
+   to crash on The Ship. (bug 1523)
+ - Fixed a class of crashes caused by improper cvar removal handling. (bug 1416)
  - Fixed a bug where VDF files were opened by MM:S even if the .vdf extension
    was not at the very end of the filename. For example, "plugin.vdf.disabled"
-   would have been opened in previous versions.
+   would have been opened in previous versions. (bug 1534)
- - Removed FCVAR_REPLICATED from MM:S convars.
+ - Removed FCVAR_REPLICATED from MM:S convars. (bug 1479)
 
 2008/01/23 1.4.3:
  - Metamod:Source can now be loaded via a .vdf instead of gameinfo.txt.

sourcemm/concommands.cpp

@@ -9,6 +9,7 @@
  */
 
 #include <ctype.h>
+#include "convar_smm.h"
 #include "CSmmAPI.h"
 #include "concommands.h"
 #include "CPlugin.h"
@@ -21,20 +22,25 @@
  * @file concommands.cpp
  */
 
-CAlwaysRegisterableCommand g_EternalCommand;
 SMConVarAccessor g_SMConVarAccessor;
 
+SMConVarAccessor::SMConVarAccessor()
+{
+	m_TopConCommandBase = NULL;
+}
+
 bool SMConVarAccessor::RegisterConCommandBase(ConCommandBase *pCommand)
 {
-	// Add the FCVAR_GAMEDLL flag 
+	/* Add the FCVAR_GAMEDLL flag 
-	// => No crash on exit!
+	 * => No crash on exit!
-	// UPDATE: Do _not_ add the FCVAR_GAMEDLL flag here, as it
+	 * UPDATE: Do _not_ add the FCVAR_GAMEDLL flag here, as it
-	// causes the command to be unusable on listenservers until you load a map
+	 * causes the command to be unusable on listen servers until you load a map
-	// We will set the FCVAR_GAMEDLL flag on all commands we have registered once we are being unloaded
+	 * We will set the FCVAR_GAMEDLL flag on all commands we have registered once we are being unloaded
-	//pCommand->AddFlags(FCVAR_GAMEDLL);
+	 */
+	// pCommand->AddFlags(FCVAR_GAMEDLL);
 	m_RegisteredCommands.push_back(pCommand);
 
-	pCommand->SetNext( NULL );
+	pCommand->SetNext(NULL);
 	g_Engine.icvar->RegisterConCommandBase(pCommand);
 
 	return true;
@@ -42,8 +48,8 @@ bool SMConVarAccessor::RegisterConCommandBase(ConCommandBase *pCommand)
 
 bool SMConVarAccessor::Register(ConCommandBase *pCommand)
 {
-	//simple, don't mark as part of sourcemm!
+	/* Simple, don't mark as part of sourcemm! */
-	pCommand->SetNext( NULL );
+	pCommand->SetNext(NULL);
 	g_Engine.icvar->RegisterConCommandBase(pCommand);
 
 	return true;
@@ -60,64 +66,47 @@ void SMConVarAccessor::MarkCommandsAsGameDLL()
 
 void SMConVarAccessor::Unregister(ConCommandBase *pCommand)
 {
-	ICvar *cv = g_Engine.icvar;
+	ConCommandBase *pCur = NULL;
-	ConCommandBase *ptr = cv->GetCommands();
-
-	if (ptr == pCommand)
-	{
-		//first in list
-		g_EternalCommand.BringToFront();
-		g_EternalCommand.SetNext(const_cast<ConCommandBase *>(pCommand->GetNext()));
-	} else {
-		//find us and unregister us
 	ConCommandBase *pPrev = NULL;
-		while (ptr)
+
+	if (!pCommand || !pCommand->IsRegistered())
 	{
-			if (ptr == pCommand)
+		return;
-				break;
-			pPrev = ptr;
-			ptr = const_cast<ConCommandBase *>(ptr->GetNext());
 	}
-		if (pPrev && ptr == pCommand)
+
+	pCur = g_Engine.icvar->GetCommands();
+	pCommand->SetRegistered(false);
+
+	if (!m_TopConCommandBase || !pCur)
+	{
+		return;
+	}
+
+	if (pCur == pCommand)
+	{
+		*m_TopConCommandBase = const_cast<ConCommandBase *>(pCommand->GetNext());
+		pCommand->SetNext(NULL);
+		return;
+	}
+	
+	pPrev = pCur;
+	pCur = const_cast<ConCommandBase *>(pCur->GetNext());
+
+	while (pCur)
+	{
+		if (pCur == pCommand)
 		{
 			pPrev->SetNext(const_cast<ConCommandBase *>(pCommand->GetNext()));
+			pCommand->SetNext(NULL);
 		}
-	}
-}
 
-void SMConVarAccessor::UnregisterGameDLLCommands()
+		pPrev = pCur;
-{
+		pCur = const_cast<ConCommandBase *>(pCur->GetNext());
-	ConCommandBase *begin = g_Engine.icvar->GetCommands();
-	ConCommandBase *iter = begin;
-	ConCommandBase *prev = NULL;
-	while (iter)
-	{
-		// watch out for the ETERNAL COMMAND!
-		if (iter != &g_EternalCommand && iter->IsBitSet(FCVAR_GAMEDLL))
-		{
-			// Remove it!
-			if (iter == begin)
-			{
-				g_EternalCommand.BringToFront();
-				iter = const_cast<ConCommandBase*>(iter->GetNext());
-				g_EternalCommand.SetNext(iter);
-				prev = &g_EternalCommand;
-				continue;
-			}
-			else
-			{
-				iter = const_cast<ConCommandBase*>(iter->GetNext());
-				prev->SetNext(iter);
-				continue;
-			}
-		}
-		prev = iter;
-		iter = const_cast<ConCommandBase*>(iter->GetNext());
 	}
 }
 
 ConVar metamod_version("metamod_version", SOURCEMM_VERSION, FCVAR_SPONLY | FCVAR_NOTIFY, "Metamod:Source Version");
-#if defined WIN32 || defined _WIN32
+#ifdef OS_WIN32
 ConVar mm_pluginsfile("mm_pluginsfile", "addons\\metamod\\metaplugins.ini", FCVAR_SPONLY, "Metamod:Source Plugins File");
 ConVar mm_basedir("mm_basedir", "addons\\metamod", FCVAR_SPONLY, "Metamod:Source base folder");
 #else
@@ -646,53 +635,6 @@ CON_COMMAND(meta, "Metamod:Source Menu")
 	CONMSG("  version      - Version information\n");
 }
 
-CAlwaysRegisterableCommand::CAlwaysRegisterableCommand()
-{
-	Create("", NULL, FCVAR_UNREGISTERED|FCVAR_GAMEDLL);
-	m_pICvar = NULL;
-}
-
-bool CAlwaysRegisterableCommand::IsRegistered( void ) const
-{
-	return false;
-}
-
-void CAlwaysRegisterableCommand::BringToFront()
-{
-	if (!m_pICvar)
-		m_pICvar = g_Engine.icvar;
-
-	// First, let's try to find us!
-	ConCommandBase *pPtr = m_pICvar->GetCommands();
-
-	if (pPtr == this)
-	{
-		// We are already at the beginning; Nothing to do
-		return;
-	}
-
-	while (pPtr)
-	{
-		if (pPtr == this && pPtr->IsCommand() && stricmp(GetName(), pPtr->GetName()) == 0)
-			break;
-		ConCommandBase *pPrev = NULL;
-		while (pPtr)
-		{
-			if (pPtr == this)
-				break;
-			pPrev = pPtr;
-			pPtr = const_cast<ConCommandBase*>(pPtr->GetNext());
-		}
-		if (pPrev && pPtr == this)
-		{
-			pPrev->SetNext(m_pNext);		// Remove us from the list
-		}
-		// Now, register us
-		SetNext(NULL);
-		m_pICvar->RegisterConCommandBase(this);
-	}
-}
-
 void ClientCommand_handler(edict_t *client)
 {
 	IVEngineServer *e = g_Engine.engine;
@@ -800,3 +742,62 @@ const char *GetMetamodBaseDir()
 {
 	return mm_basedir.GetString();
 }
+
+/* Signature for ICvar::GetCommands() in vstdlib for Win32 and Linux.
+ *
+ * 20226EE0 A1 50 5C 5A 20   mov         eax,dword ptr ds:[205A5C50h] <-- What we want
+ * 20226EE5 C3               ret              
+ */
+#define CMDLIST_SIG "\xA1\x2A\x2A\x2A\x2A\xC3"
+#define CMDLIST_SIGLEN 6
+
+/* Linux symbol name of ConCommandBase list in vstdlib */
+#define CMDLIST_SYMBOL "_ZN14ConCommandBase18s_pConCommandBasesE"
+
+/* This function retrieves the address of the var that holds the top of the ConCommandBase list.
+ * Having this allows us to change the beginning of this list with ease.
+ *
+ * This craziness eliminates the need for the eternal command/cvar used previously which
+ * could have caused a crash as a result of registering commands/cvars more than once.
+ */
+bool SMConVarAccessor::InitConCommandBaseList()
+{
+	char *vfunc = UTIL_GetOrigFunction(&ICvar::GetCommands, g_Engine.icvar, g_CvarPatch);
+
+	if (!vfunc)
+	{
+		return false;
+	}
+
+#ifdef OS_WIN32
+	if (UTIL_VerifySignature(vfunc, CMDLIST_SIG, CMDLIST_SIGLEN))
+	{
+		/* Skip past 0xA1 and get addr of ConCommandBase list var */
+		m_TopConCommandBase = *reinterpret_cast<ConCommandBase ***>(vfunc + 1);
+		return true;
+	}
+#elif defined OS_LINUX
+	/* Try dlsym first */
+	char path[PATH_SIZE];
+	if (GetFileOfAddress((void *)g_Engine.icvar, path, sizeof(path)))
+	{
+		void *handle = dlopen(path, RTLD_NOW);
+		if (handle)
+		{
+			m_TopConCommandBase = reinterpret_cast<ConCommandBase **>(dlsym(handle, CMDLIST_SYMBOL));
+			dlclose(handle);
+			return true;
+		}
+	}
+
+	/* If dlsym failed, then verify signature of function */
+	if (!m_TopConCommandBase && UTIL_VerifySignature(vfunc, CMDLIST_SIG, CMDLIST_SIGLEN))
+	{
+		/* Skip past 0xA1 and get addr of ConCommandBase list var */
+		m_TopConCommandBase = *reinterpret_cast<ConCommandBase ***>(vfunc + 1);
+		return true;
+	}
+#endif
+
+	return false;
+}

sourcemm/concommands.h

@@ -16,35 +16,24 @@
  * @file concommands.h
  */
 
-#include <interface.h>
-#include <eiface.h>
-#include "sourcemm.h"
 #include "convar_smm.h"
+#include "sourcemm.h"
 #include "sh_list.h"
 
 class SMConVarAccessor : public IConCommandBaseAccessor
 {
 	SourceHook::List<ConCommandBase*> m_RegisteredCommands;
+	ConCommandBase **m_TopConCommandBase;
 public:
+	SMConVarAccessor();
 	virtual bool RegisterConCommandBase(ConCommandBase *pCommand);
 	bool Register(ConCommandBase *pCommand);
 	void MarkCommandsAsGameDLL();
+	bool InitConCommandBaseList();
 	void Unregister(ConCommandBase *pCommand);
-	void UnregisterGameDLLCommands();
 	void UnloadMetamodCommands();
 };
 
-class CAlwaysRegisterableCommand : public ConCommandBase
-{
-	ICvar *m_pICvar;
-public:
-	CAlwaysRegisterableCommand();
-	bool IsRegistered( void ) const;
-	// If already registered, removes us
-	// Then it registers us again
-	void BringToFront();
-};
-
 void ClientCommand_handler(edict_t *client);
 
 const char *GetPluginsFile();

sourcemm/convar_smm.h

@@ -198,6 +198,11 @@ protected:
 
 	// ConVars in this executable use this 'global' to access values.
 	static IConCommandBaseAccessor	*s_pAccessor;
+public:
+	inline void	SetRegistered(bool registered)
+	{
+		m_bRegistered = registered;
+	}
 };
 
 //-----------------------------------------------------------------------------
@@ -242,7 +247,7 @@ private:
 	FnCommandCompletionCallback	m_fnCompletionCallback;
 	bool						m_bHasCompletionCallback;
 public:
-	FnCommandCallback			GetCallback() { return m_fnCommandCallback; }
+	inline FnCommandCallback	GetCallback() { return m_fnCommandCallback; }
 };
 
 //-----------------------------------------------------------------------------

sourcemm/sourcemm.cpp

@@ -61,6 +61,7 @@ bool gParsedGameInfo = false;
 bool bGameInit = false;
 SourceHook::List<GameDllInfo *> gamedll_list;
 SourceHook::CallClass<IServerGameDLL> *g_GameDllPatch;
+SourceHook::CallClass<ICvar> *g_CvarPatch;
 int g_GameDllVersion = 0;
 const char VSPIFACE_001[] = "ISERVERPLUGINCALLBACKS001";
 const char VSPIFACE_002[] = "ISERVERPLUGINCALLBACKS002";
@@ -174,6 +175,7 @@ bool StartupMetamod(CreateInterfaceFn engineFactory, bool bWaitForGameInit)
 	ConCommandBaseMgr::OneTimeInit(static_cast<IConCommandBaseAccessor *>(&g_SMConVarAccessor));
 
 	g_GameDllPatch = SH_GET_CALLCLASS(g_GameDll.pGameDLL);
+	g_CvarPatch = SH_GET_CALLCLASS(g_Engine.icvar);
 
 	if (g_GameDll.pGameClients)
 	{
@@ -207,6 +209,13 @@ bool StartupMetamod(CreateInterfaceFn engineFactory, bool bWaitForGameInit)
 		LogMessage("[META] Failed to find filesystem interface, .vdf files will not be parsed.");
 	}
 
+	if (!g_SMConVarAccessor.InitConCommandBaseList())
+	{
+		/* This is very unlikely considering it's old engine */
+		LogMessage("[META] Warning: Failed to find ConCommandBase list!");
+		LogMessage("[META] Warning: ConVars and ConCommands cannot be unregistered properly! Please file a bug report.");
+	}
+
 	if (!bWaitForGameInit)
 	{
 		DoInitialPluginLoads();
@@ -603,13 +612,15 @@ void UnloadMetamod(bool shutting_down)
 	{
 		/* Add the FCVAR_GAMEDLL flag to our cvars so the engine removes them properly */
 		g_SMConVarAccessor.MarkCommandsAsGameDLL();
-		g_SMConVarAccessor.UnregisterGameDLLCommands();
+		g_Engine.icvar->UnlinkVariables(FCVAR_GAMEDLL);
 
 		SH_CALL(g_GameDllPatch, &IServerGameDLL::DLLShutdown)();
 	}
 
 	SH_RELEASE_CALLCLASS(g_GameDllPatch);
+	SH_RELEASE_CALLCLASS(g_CvarPatch);
 	g_GameDllPatch = NULL;
+	g_CvarPatch = NULL;
 
 	g_SourceHook.CompleteShutdown();
 

sourcemm/sourcemm.h

@@ -125,4 +125,7 @@ void UnloadMetamod(bool shutting_down);
 /** @brief Global CallClass for IServerGameDLL */
 extern SourceHook::CallClass<IServerGameDLL> *g_GameDllPatch;
 
+/** @brief Global CallClass for ICvar */
+extern SourceHook::CallClass<ICvar> *g_CvarPatch;
+
 #endif //_INCLUDE_SOURCEMM_H

sourcemm/svn_version.h

@@ -3,11 +3,11 @@
 #ifndef _INCLUDE_SVN_VERSION_H_
 #define _INCLUDE_SVN_VERSION_H_
 
-#define SVN_PRODUCT_VERSION		"1.4.3"
+#define SVN_PRODUCT_VERSION		"1.4.4"
 
-#define SVN_REVISION			656
+#define SVN_REVISION			705
-#define SVN_REVISION_STRING		"656"
+#define SVN_REVISION_STRING		"705"
-#define SVN_FILE_VERSION		1,4,3,656
+#define SVN_FILE_VERSION		1,4,4,705
-#define SVN_FILE_VERSION_STRING	"1.4.3.656"
+#define SVN_FILE_VERSION_STRING	"1.4.4.705"
 
 #endif //_INCLUDE_SVN_VERSION_H_

sourcemm/util.cpp

@@ -406,3 +406,19 @@ size_t UTIL_FormatArgs(char *buffer, size_t maxlength, const char *fmt, va_list
 
 	return len;
 }
+
+bool UTIL_VerifySignature(const void *addr, const char *sig, size_t len)
+{
+	unsigned char *addr1 = (unsigned char *) addr;
+	unsigned char *addr2 = (unsigned char *) sig;
+
+	for (size_t i = 0; i < len; i++)
+	{
+		if (addr2[i] == '*')
+			continue;
+		if (addr1[i] != addr2[i])
+			return false;
+	}
+
+	return true;
+}

sourcemm/util.h

@@ -12,12 +12,15 @@
 #define _INCLUDE_UTIL_H
 
 #include <stdarg.h>
+#include <sourcehook/sourcehook.h>
 
 /**
  * @brief Utility functions
  * @file util.h
  */
 
+#define IA32_JMP_IMM32 '\xE9'
+
 /**
  * @brief Returns a pointer to the extension in a file name.
  */
@@ -73,4 +76,55 @@ bool UTIL_Relatize(char buffer[],
 				   const char *relTo,
 				   const char *relFrom);
 
+/**
+ * @brief Compares memory address against a signature.
+ *
+ * @param addr			Memory address to check.
+ * @param sig			Signature used to check against memory address. Accept 0x2A as wildcard.
+ * @param len			Length of signature.
+ * @return				True if signature was verified, false otherwise.
+ */
+bool UTIL_VerifySignature(const void *addr, const char *sig, size_t len);
+
+/**
+ * @brief Returns the original function address of a given virtual function.
+ *
+ * @param mfp			Member function pointer to virtual function.
+ * @param ptr			Pointer to interface in which the virtual function belongs.
+ * @param cls			A CallClass for the interface in which the virtual function belongs.
+ * @return				Address of function originally pointed to by the virtual function.
+ */
+template <class MFP, class Iface>
+char *UTIL_GetOrigFunction(MFP vfunc, Iface *ptr, SourceHook::CallClass<Iface> *cls)
+{
+	SourceHook::MemFuncInfo info = {true, -1, 0, 0};
+	SourceHook::GetFuncInfo(vfunc, info);
+
+	/* Get address of original GetUserMessageInfo() */
+	char *func = reinterpret_cast<char *>(cls->GetOrigFunc(info.vtbloffs, info.vtblindex));
+
+	/* If we can't get original function, that means there's no hook */
+	if (func == NULL)
+	{
+		/* Get virtual function address 'manually' then */
+		char *adjustedptr = reinterpret_cast<char *>(ptr) + info.vtbloffs + info.vtbloffs;
+		char **vtable = *reinterpret_cast<char ***>(adjustedptr);
+
+		func = vtable[info.vtblindex];
+	}
+
+	/* Check for relative jumps */
+	if (func[0] == IA32_JMP_IMM32)
+	{
+		/* Get address from displacement...
+		 *
+		 * Add 5 because it's relative to next instruction:
+		 * Opcode <1 byte> + 32-bit displacement <4 bytes> 
+		 */
+		func += *reinterpret_cast<unsigned long *>(func + 1) + 5;
+	}
+
+	return func;
+}
+
 #endif //_INCLUDE_UTIL_H

update_tool/Makefile

@@ -1,68 +0,0 @@
-#(C)2004-2007 SourceMM Development Team
-# Makefile written by David "BAILOPAN" Anderson
-
-HL2SDK = ../../hl2sdk
-SMM_ROOT = ..
-SRCDS = ~/srcds
-
-### EDIT BELOW FOR OTHER PROJECTS ###
-
-OPT_FLAGS = -O2 -funroll-loops -s -pipe
-GCC4_FLAGS = -fvisibility=hidden -fvisibility-inlines-hidden
-DEBUG_FLAGS = -g -ggdb3
-CPP = gcc-4.1
-BINARY = sourcemm_update_tool_i486.so
-
-HL2PUB = $(HL2SDK)/public
-HL2LIB = $(HL2SDK)/linux_sdk
-
-OBJECTS = update_tool.cpp
-
-LINK = vstdlib_i486.so tier0_i486.so -static-libgcc
-
-INCLUDE = -I. -I$(HL2PUB) -I$(HL2PUB)/dlls -I$(HL2PUB)/engine -I$(HL2PUB)/tier0 -I$(HL2PUB)/tier1 \
-          -I$(HL2PUB)/vstdlib -I$(HL2SDK)/tier1 -I$(SMM_ROOT) -I$(SMM_ROOT)/sourcehook
-
-ifeq "$(DEBUG)" "true"
-	BIN_DIR = Debug
-	CFLAGS = $(DEBUG_FLAGS)
-else
-	BIN_DIR = Release
-	CFLAGS = $(OPT_FLAGS)
-endif
-
-GCC_VERSION := $(shell $(CPP) -dumpversion >&1 | cut -b1)
-
-CFLAGS += -D_LINUX -DNDEBUG -Dstricmp=strcasecmp -D_stricmp=strcasecmp -D_strnicmp=strncasecmp -Dstrnicmp=strncasecmp -D_snprintf=snprintf -D_vsnprintf=vsnprintf -D_alloca=alloca -Dstrcmpi=strcasecmp -Wall -Wno-non-virtual-dtor -Werror -fPIC -fno-exceptions -fno-rtti -msse
-
-ifeq "$(GCC_VERSION)" "4"
-	CFLAGS += $(GCC4_FLAGS)
-endif
-
-OBJ_LINUX := $(OBJECTS:%.cpp=$(BIN_DIR)/%.o)
-
-$(BIN_DIR)/%.o: %.cpp
-	$(CPP) $(INCLUDE) $(CFLAGS) -o $@ -c $<
-
-all:
-	mkdir -p $(BIN_DIR)
-	ln -sf $(SRCDS)/bin/tier0_i486.so tier0_i486.so
-	ln -sf $(SRCDS)/bin/vstdlib_i486.so vstdlib_i486.so
-	nasm api_link.asm -f elf -o $(BIN_DIR)/api_link.o -DLINUX
-	$(MAKE) sourcemm
-	rm -rf $(BINARY)
-	ln -sf $(BIN_DIR)/$(BINARY) $(BINARY)
-
-sourcemm: $(OBJ_LINUX)
-	$(CPP) $(INCLUDE) $(CFLAGS) $(OBJ_LINUX) $(BIN_DIR)/api_link.o $(LINK) -shared -ldl -lm -o$(BIN_DIR)/$(BINARY)
-
-debug:	
-	$(MAKE) all DEBUG=true
-
-default: all
-
-clean:
-	rm -rf Release/*.o
-	rm -rf Release/$(BINARY)
-	rm -rf Debug/*.o
-	rm -rf Debug/$(BINARY)

update_tool/README.txt

@@ -1,90 +0,0 @@
-This is the README file for sourcemm_update_tool.
-
-This tool will automatically correct gameinfo.txt when your server gets updated, and Valve's updater overwrites Metamod:Source's changes.  This tool is experimental, and is thus a separate download for now.
-
-1.  INSTALLATION
-
- a.  Extract the entire package to your mod folder.  The structure should look like:
-
-	<mod>/addons/metamod/bin/sourcemm_update_tool.dll
-	<mod>/addons/metamod/bin/sourcemm_update_tool_i486.so
-	<mod>/addons/metamod/README.txt
-	<mod>/addons/sourcemm_update_tool.vdf
-	<mod>/sourcemm_updater.conf
-
- b.  Open <mod>/sourcemm_updater.conf with your favorite text editor.  Change the
-     "cstrike" folder to match your mod folder.  
-
-2.  CONFIGURATION
-
-   The sourcemm_updater.conf file has two configuration options.  
-
-   mmpath     - Set this to the path Metamod:Source is located in.
-                This defaults to addons/metamod/bin
-   restart    - Set this to how the server should be restarted when 
-                gameinfo.txt is patched.  There are three options:
-
-                quit  - Execute "quit" in the console.  Currently does not work.
-                never - Do not restart.
-                error - Generate an error message.  Because of a bug in SourceDS,
-                        this will generate a crash dump on Windows, but the server
-                        will successfully quit.
-
-3.  USAGE
-
-   You do not need to do anything to use the updater tool.  When your server starts,
- it silently checks to see if Metamod:Source is loaded.  If not, it will make sure
- gameinfo.txt is correctly set.  Then, depending on how it's configured, it will 
- kill the server.  Most game server provides have auto-restart functionality on their
- servers; if not, you will need to manually restart the server.
-
-   The update tool unloads itself immediately after the server starts, so it will not
- use any resources, and will not display when you type 'plugin_print'.  
-
-4.  TROUBLESHOOTING
-
-   This tool is currently experimental.  There are two possible problems.  For 
-   any issue you encounter, you should post a report here:
-
-   http://bugs.alliedmods.net/index.php?project=4
-
-  a.  The updater tool does not patch gameinfo.txt
-
-      Verify that the tool is loading.  You can do this by opening up the 
-      sourcemm_update_tool.vdf file and copying its file path.  Then, enter
-      the following command in your server console:
-
-       plugin_load <path>
-
-      Example:
-
-       plugin_load cstrike\addons\metamod\bin\sourcemm_update_tool
-
-      If you get the following reply:
-
-       Failed to load plugin "cstrike\addons\sourcemm_update_tool"
-       Unable to load plugin "cstrike\addons\sourcemm_update_tool"
-
-      Then the tool is working, and you should post a bug report.  If instead, 
-      you get:
-
-       Unable to load plugin "cstrike\addons\sourcemm_update_tool"
-       Unable to load plugin "cstrike\addons\sourcemm_update_tool"
-
-      Then the tool is not loading properly, and the path you are trying to use
-      is not correct.
-
-  b.  The server always dies, and you can't start it at all
-
-      The updater tool is either crashing or not repairing Metamod:Source 
-      correctly.  First, try changing the 'restart' line in sourcemm_updater.conf
-      to the following line:
-
-	restart = never
-
-      If that does not fix the problem, remove the .vdf file so the updater tool
-      will not be loaded.  
-
-      In either case, you should post a bug report containing your mod name and
-      your gameinfo.txt as an attachment.
-      

update_tool/api_link.asm

@@ -1,138 +0,0 @@
-;;;;
-;; (C)2005-2007 AlliedModders LLC
-;; By the Metamod:Source Development Team
-;; This software is licensed under the zlib/libpng free software license.
-;;
-;; This assembly file is a short thunk wrapper to let us load as a VSP and exit quietly,
-;; without any overhead of the rest of the interface, and also to prevent linking against
-;; tierX or vstdlib
-;;;;
-
-;;Exports:
-;; void GetBaseDir(char *buffer, maxlength);
-;; void *GetThisPointer();
-;;Imports:
-;; void LoadFunction();
-
-section .text
-
-global GetThisPointer, GetGameDir, ServerCommand
-global _GetThisPointer, _GetGameDir, _ServerCommand
-global _GetICvar, GetICvar
-extern _LoadFunction
-
-GetICvar:
-_GetICvar:
-	mov 	eax, [icvar]
-	ret
-
-GetThisPointer:
-_GetThisPointer:
-	mov		eax, GLOBAL_POINTER
-	ret
-	
-GetGameDir:
-_GetGameDir:
-	push	ebp
-	mov		ebp, esp			
-	
-	mov		ecx, [engine]		;get this pointer
-	mov		edx, [ecx]			;get the vtable
-	push	dword [ebp+12]		;push maxlenth
-	push	dword [ebp+8]		;push buffer
-	%ifdef LINUX
-	push	ecx					;push this pointer
-	%endif
-	call	dword [edx+216]		;call IVEngineServer::GetGameDir
-	%ifdef LINUX
-	add		esp, 12				;correct stack
-	%endif
-	
-	pop 	ebp
-	ret
-	
-ServerCommand
-_ServerCommand:
-	push	ebp
-	mov		ebp, esp
-	
-	mov		ecx, [engine]		;get this pointer
-	mov		edx, [ecx]			;get the vtable
-	push	dword [ebp+8]		;push string
-	%ifdef LINUX
-	push	ecx					;push this pointer
-	%endif
-	call	dword [edx+144]		;call IVEngineServer::ServerCommand
-	%ifdef LINUX
-	add		esp, 8				;correct stack
-	%endif
-	
-	pop		ebp
-	ret
-	
-thisLoadFunction:
-	push	ebp
-	mov		ebp, esp
-	
-	push	edi
-	
-	;get factory
-	%ifdef LINUX
-	mov		edi, [ebp+12]
-	%else
-	mov		edi, [ebp+8]
-	%endif
-	
-	push	dword 0				;NULL
-	push	dword VENGINESERVER	;iface name
-	call	edi					;call factory
-	add		esp, 8				;correct stack
-	
-	test	eax, eax			;do we have a valid pointer?
-	jz		.end				;no, bail out
-	
-	mov		[engine], eax		;store the engine pointer
-	
-	push	dword 0				;NULL
-	push	dword VENGINECVAR	;iface name
-	call	edi					;call factory
-	add		esp, 8				;correct stack
-	
-	test	eax, eax			;do we have a valid pointer?
-	jz		.end				;no, bail out
-	
-	mov		[icvar], eax		;store the icvar pointer
-	
-	call	_LoadFunction
-	
-.end:
-	;We never load, never ever ever!
-	xor		eax, eax
-	
-	pop		edi
-	
-	pop		ebp
-	%ifdef LINUX
-	ret
-	%else
-	retn	8
-	%endif
-	
-thisUnloadFunction:
-	ret
-	
-section .data
-	INTERFACE_NAME		DB		"ISERVERPLUGINCALLBACKS001", 0
-	VENGINESERVER		DB		"VEngineServer021", 0
-	VENGINECVAR			DB		"VEngineCvar003", 0
-	
-	VIRTUAL_TABLE		DD		thisLoadFunction
-						DD		thisUnloadFunction
-						;We don't need any more of the vtable here
-								
-	GLOBAL_POINTER		DD		VIRTUAL_TABLE
-
-	temp_ret			DD		0
-	temp_ptr			DD		temp_ret
-	engine				DD		0
-	icvar				DD		0

update_tool/msvc8/update_tool.sln

@@ -1,20 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 9.00
-# Visual Studio 2005
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "update_tool", "update_tool.vcproj", "{DDD1563F-7EE2-4E76-BE57-ED84A2664A51}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		Release|Win32 = Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{DDD1563F-7EE2-4E76-BE57-ED84A2664A51}.Debug|Win32.ActiveCfg = Debug|Win32
-		{DDD1563F-7EE2-4E76-BE57-ED84A2664A51}.Debug|Win32.Build.0 = Debug|Win32
-		{DDD1563F-7EE2-4E76-BE57-ED84A2664A51}.Release|Win32.ActiveCfg = Release|Win32
-		{DDD1563F-7EE2-4E76-BE57-ED84A2664A51}.Release|Win32.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal

update_tool/msvc8/update_tool.vcproj

@@ -1,203 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="8.00"
-	Name="update_tool"
-	ProjectGUID="{DDD1563F-7EE2-4E76-BE57-ED84A2664A51}"
-	RootNamespace="update_tool"
-	Keyword="Win32Proj"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="2"
-			CharacterSet="2"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-				CommandLine="nasmw ..\api_link.asm -f win32 -oDebug\api_link.obj -DWIN32"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;UPDATE_TOOL_EXPORTS;_CRT_SECURE_NO_DEPRECATE;_CRT_STD_NO_DEPRECATE"
-				MinimalRebuild="true"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="1"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="4"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="Debug\api_link.obj tier0.lib"
-				OutputFile="$(OutDir)\sourcemm_update_tool.dll"
-				LinkIncremental="2"
-				GenerateDebugInformation="true"
-				SubSystem="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCWebDeploymentTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="2"
-			CharacterSet="2"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-				CommandLine="nasmw ..\api_link.asm -f win32 -oRelease\api_link.obj -DWIN32"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;UPDATE_TOOL_EXPORTS;_CRT_SECURE_NO_DEPRECATE"
-				RuntimeLibrary="0"
-				UsePrecompiledHeader="0"
-				WarningLevel="3"
-				Detect64BitPortabilityProblems="true"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				AdditionalDependencies="Release\api_link.obj tier0.lib"
-				OutputFile="$(OutDir)\sourcemm_update_tool.dll"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="2"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCWebDeploymentTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Source Files"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath="..\update_tool.cpp"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-		</Filter>
-		<Filter
-			Name="Resource Files"
-			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
-			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

update_tool/sourcemm_update_tool.vdf

@@ -1,6 +0,0 @@
-//This is a sample VDF file.  You need to edit "cstrike" to point to the mod you use.
-
-"Plugin"
-{
-	"file"		"cstrike/addons/metamod/bin/sourcemm_update_tool"
-}

update_tool/sourcemm_updater.conf

@@ -1,9 +0,0 @@
-;Use this to configure where Metamod resides, if you have
-;changed its location
-;mmpath = addons/metamod/bin
-
-;Use this to specify how the updater tool restarts SourceDS
-; never - don't restart
-; error - restart by generating a fatal error message
-; quit  - restart by issuing a "quit" server command
-restart = error

update_tool/update_tool.cpp

@@ -1,366 +0,0 @@
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <ctype.h>
-
-#if defined _MSC_VER
-#define SEPCHAR			"\\"
-#define MMPATH			"addons\\metamod\\bin"
-#define WINDOWS_LEAN_AND_MEAN
-#include <windows.h>
-#elif defined __linux__
-#define SEPCHAR			"/"
-#define MMPATH			"addons/metamod/bin"
-#include <unistd.h>
-#endif
-
-#include <icvar.h>
-
-extern "C" void GetGameDir(char *buffer, int maxlength);
-extern "C" void *GetThisPointer();
-extern "C" void ServerCommand(const char *command);
-extern "C" ICvar *GetICvar();
-
-size_t UTIL_Format(char *buffer, size_t maxlength, const char *fmt, ...);
-bool s_isspace(char c);
-bool RenameFile(const char *old, const char *newf);
-bool RemoveFile(const char *file);
-
-/* This will be called by the thunk */
-#if defined _MSC_VER
-extern "C" void LoadFunction()
-#elif defined __linux__
-extern "C" void _LoadFunction()
-#endif
-{
-	ICvar *pCvar = GetICvar();
-	if (pCvar->FindVar("metamod_version") != NULL)
-	{
-		/* Already exists, bail out */
-		return;
-	}
-
-	char gamedir[260];
-	char mmpath[260];
-
-	enum RestartMode
-	{
-		Restart_Never,
-		Restart_Error,
-		Restart_Quit,
-	};
-
-	RestartMode mode = Restart_Error;
-
-	GetGameDir(gamedir, sizeof(gamedir));
-
-	/* Defaults */
-	UTIL_Format(mmpath, sizeof(mmpath), "|gameinfo_path|%s", MMPATH);
-
-	/* Read config */
-	char config[260];
-	UTIL_Format(config, sizeof(config), "%s" SEPCHAR "sourcemm_updater.conf", gamedir);
-	FILE *fpCfg = fopen(config, "rt");
-	if (fpCfg)
-	{
-		char cfgLine[512];
-		while (!feof(fpCfg) && fgets(cfgLine, sizeof(cfgLine), fpCfg) != NULL)
-		{
-			char key[255];
-
-			size_t keyLen = 0;
-
-			/* Strip whitespace */
-			char *input = cfgLine;
-			while (*input != '\0' && s_isspace(*input))
-			{
-				input++;
-			}
-
-			/* Strip ending whitespace */
-			size_t len = strlen(input);
-			for (size_t i = len - 1;
-				 i >= 0 && i < len;
-				 i--)
-			{
-				if (s_isspace(input[i]))
-				{
-					input[i] = '\0';
-					len--;
-				} else {
-					break;
-				}
-			}
-			
-			/* Eat stuff until we find a key */
-			while (*input != '\0' && !s_isspace(*input))
-			{
-				if (keyLen < sizeof(key))
-				{
-					key[keyLen++] = *input;
-				}
-				input++;
-			}
-			key[keyLen] = '\0';
-
-			/* Eat spaces until we hit an = sign */
-			while (*input != '\0' && *input != '=')
-			{
-				input++;
-			}
-
-			if (*input == '=')
-			{
-				input++;
-			}
-
-			/* Eat spaces again */
-			while (*input != '\0' && s_isspace(*input))
-			{
-				input++;
-			}
-
-			/* Ignore comments */
-			if (key[0] == ';')
-			{
-				continue;
-			}
-
-			/* The rest is our key */
-			if (strcmp(key, "mmpath") == 0)
-			{
-				UTIL_Format(mmpath, sizeof(mmpath), "%s", input);
-			} else if (strcmp(key, "restart") == 0) {
-				if (strcmp(input, "never") == 0)
-				{
-					mode = Restart_Never;
-				} else if (strcmp(input, "error") == 0) {
-					mode = Restart_Error;
-				} else if (strcmp(input, "quit") == 0) {
-					mode = Restart_Quit;
-				}
-			}
-		}
-		fclose(fpCfg);
-	}
-
-	char old_path[260];
-	char new_path[260];
-
-	UTIL_Format(old_path, sizeof(old_path), "%s" SEPCHAR "gameinfo.txt", gamedir);
-	UTIL_Format(new_path, sizeof(new_path), "%s" SEPCHAR "gameinfo.new.txt", gamedir);
-
-	FILE *fp = fopen(old_path, "rt");
-	
-	if (!fp)
-	{
-		return;
-	}
-
-	FILE *op = fopen(new_path, "wt");
-	if (!op)
-	{
-		fclose(fp);
-		return;
-	}
-
-	enum ParseState
-	{
-		Parse_None,
-		Parse_Root,
-		Parse_GameInfo,
-		Parse_FileSystem,
-		Parse_SearchPaths,
-	};
-
-	ParseState ps = Parse_Root;
-
-	char input[1024];
-	char backup[1024];
-
-	bool bWroteOutput = false;
-	
-	while (!feof(fp) && fgets(input, sizeof(input), fp) != NULL)
-	{
-		UTIL_Format(backup, sizeof(backup), "%s", input);
-
-		if (ps != Parse_None)
-		{
-			char *inbuf = input;
-			
-			/* Strip beginning whitespace */
-			while (*inbuf != '\0' && s_isspace(*inbuf))
-			{
-				inbuf++;
-			}
-
-			/* Strip ending whitespace */
-			size_t len = strlen(inbuf);
-			for (size_t i = len - 1;
-				 i >= 0 && i < len;
-				 i--)
-			{
-				if (s_isspace(inbuf[i]))
-				{
-					inbuf[i] = '\0';
-					len--;
-				} else {
-					break;
-				}
-			}
-
-			/* Strip quotation marks */
-			if (inbuf[0] == '"'
-				&& inbuf[len-1] == '"')
-			{
-				inbuf[len - 1] = '\0';
-				inbuf = &inbuf[1];
-				len -= 2;
-			}
-
-			/* Do tests */
-			if (ps == Parse_Root && strcmp(inbuf, "GameInfo") == 0)
-			{
-				ps = Parse_GameInfo;
-			} else if (ps == Parse_GameInfo && strcmp(inbuf, "FileSystem") == 0) {
-				ps = Parse_FileSystem;
-			} else if (ps == Parse_FileSystem && strcmp(inbuf, "SearchPaths") == 0) {
-				ps = Parse_SearchPaths;
-			} else if (ps == Parse_SearchPaths) {
-				const char *game = strstr(inbuf, "Game");
-				if (game)
-				{
-					if (strstr(game, "GameBin") != NULL
-						&& strstr(game, mmpath) != NULL)
-					{
-						fclose(op);
-						op = NULL;
-						break;			/* Nothing more to do! */
-					} else {
-						fputs("\t\t\tGameBin\t\t\t", op);
-						fputs(mmpath, op);
-						fputs("\n", op);
-						ps = Parse_None;
-						bWroteOutput = true;
-					}
-				}
-			}
-		}
-
-		fputs(backup, op);
-	}
-
-	if (!op)
-	{
-		/* Well, we can't really do anything else.  Give up. */
-		fclose(fp);
-		return;
-	}
-
-	/* Close all streams */
-	fclose(op);
-	fclose(fp);
-
-	/* If we didn't change anything, abort here */
-	if (!bWroteOutput)
-	{
-		RemoveFile(new_path);
-		return;
-	}
-
-	/* Move the old file to a backup name */
-	char backup_name[260];
-	UTIL_Format(backup_name, sizeof(backup_name), "%s" SEPCHAR "gameinfo.backup.txt", gamedir);
-
-	if (!RenameFile(old_path, backup_name))
-	{
-		/* If we can't rename, just bail out.
-		 * We don't want to overwrite the client's default
-		 * without backing it up first!
-		 */
-		return;
-	}
-	if (!RenameFile(new_path, old_path))
-	{
-		/* Since this failed, we really have no choice.
-		 * Try and rename the old back.
-		 */
-		RenameFile(backup_name, old_path);
-		return;
-	}
-	RemoveFile(new_path);
-
-	if (mode == Restart_Error)
-	{
-		Error("Server is restarting to load Metamod:Source");
-	} else if (mode == Restart_Quit) {
-		ServerCommand("quit\n");
-	}
-}
-
-bool RemoveFile(const char *file)
-{
-#if defined _MSC_VER
-	return (_unlink(file) == 0);
-#else
-	return (unlink(file) == 0);
-#endif
-}
-
-bool s_isspace(char c)
-{
-	if ((unsigned)c & 0x80)
-	{
-		return false;
-	} else {
-		return isspace(c) ? true : false;
-	}
-}
-
-size_t UTIL_Format(char *buffer, size_t maxlength, const char *fmt, ...)
-{
-	va_list ap;
-
-	va_start(ap, fmt);
-	size_t len = vsnprintf(buffer, maxlength, fmt, ap);
-	va_end(ap);
-
-	if (len >= maxlength)
-	{
-		len = maxlength - 1;
-		buffer[len] = '\0';
-	}
-
-	return len;
-}
-
-bool RenameFile(const char *old, const char *newf)
-{
-#if defined __linux__
-	return (rename(old, newf) == 0);
-#elif defined WIN32
-	return (MoveFileA(old, newf) != 0);
-#endif
-}
-
-#if defined _MSC_VER
-extern "C" __declspec(dllexport) void *CreateInterface(const char *iface, int *ret)
-#elif defined __linux__
-extern "C" __attribute__((visibility("default"))) void *CreateInterface(const char *iface, int *ret)
-#endif
-{
-	if (strcmp(iface, "ISERVERPLUGINCALLBACKS001") == 0)
-	{
-		if (ret)
-		{
-			*ret = 0;
-		}
-		return GetThisPointer();
-	}
-
-	if (ret)
-	{
-		*ret = 1;
-	}
-	return NULL;
-}