Update from SDK 2013

game/shared/secure_command_line.h

@@ -0,0 +1,52 @@
+//====== Copyright  Valve Corporation, All rights reserved. =================
+//
+// Secure Command Line parsing to be able to safely launch with untrusted launch parameters.
+// 
+//=============================================================================
+#ifndef SECURE_COMMAND_LINE_H
+#define SECURE_COMMAND_LINE_H
+#if defined( COMPILER_MSVC )
+#pragma once
+#endif
+
+#include "steam/steam_api.h"
+
+// Should parse the command line and do whatever handling it wants. The command line coming in
+// should be considered actively hostile, from an untrusted source. Note that this is not the 
+// complete command line--only the options that are from an untrusted source (the others were
+// passed directly to us on the command line already).
+using FnUnsafeCmdLineProcessor = void( const char *pchUnsafeCmdLine, int cubSize, CSteamID srcSteamID );
+
+
+//
+// We don't really need to be a system, but we do need to exist for the duration of the app.
+// (We also need to register some steam callbacks, which we will own--but that will be dispatched
+// to a function passed in at construction time).
+class CSecureLaunchSystem : public CAutoGameSystem
+{
+public:
+	CSecureLaunchSystem( FnUnsafeCmdLineProcessor *pfnUnsafeCmdLineProcessor );
+	virtual ~CSecureLaunchSystem();
+
+	STEAM_CALLBACK( CSecureLaunchSystem, OnNewUrlLaunchParameters, NewUrlLaunchParameters_t );
+	STEAM_CALLBACK( CSecureLaunchSystem, OnGameRichPresenceJoinRequested, GameRichPresenceJoinRequested_t );
+
+	void ProcessCommandLine();
+
+private:
+	FnUnsafeCmdLineProcessor *m_pfnUnsafeCmdLineProcessor;
+};
+
+// This will create the system, and can only be called once. Passing null will fatal error. 
+void RegisterSecureLaunchProcessFunc( FnUnsafeCmdLineProcessor *pfnUnsafeCmdLineProcessor );
+// Call this sometime after you've init'd steam, and are ready to do processing on any parameters that came in
+// which could be unsafe.
+void ProcessInsecureLaunchParameters();
+
+#ifndef TF_CLIENT_DLL
+void UnsafeCmdLineProcessor( const char *pchUnsafeCmdLine, int cubSize, CSteamID srcSteamID );
+#else
+void TFUnsafeCmdLineProcessor( const char *pchUnsafeCmdLine, int cubSize, CSteamID srcSteamID );
+#endif
+
+#endif // SECURE_COMMAND_LINE_H