Add support for retrieving game server Steam Id (bug 6404). (#495)

core/logic/AMBuilder

@@ -81,6 +81,7 @@ binary.sources += [
   'RootConsoleMenu.cpp',
   'CDataPack.cpp',
   'frame_tasks.cpp',
+  'smn_halflife.cpp',
 ]
 if builder.target_platform == 'windows':
   binary.sources += ['thread/WinThreads.cpp']

core/logic/smn_halflife.cpp

@@ -0,0 +1,69 @@
+/**
+* vim: set ts=4 sw=4 tw=99 noet :
+* =============================================================================
+* SourceMod
+* Copyright (C) 2004-2016 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: $Id$
+*/
+
+#include "common_logic.h"
+#include <IGameHelpers.h>
+#include <am-string.h>
+
+#include <inttypes.h>
+
+static cell_t GetServerAuthId(IPluginContext *pContext, const cell_t *params)
+{
+	cell_t *pOut;
+	pContext->LocalToPhysAddr(params[2], &pOut);
+
+	switch ((AuthIdType)params[1])
+	{
+	case AuthIdType::Steam3:
+		gamehelpers->GetServerSteam3Id((char *)pOut, params[3]);
+		break;
+
+	case AuthIdType::SteamId64:
+		ke::SafeSprintf((char *)pOut, params[3], "%" PRIu64, gamehelpers->GetServerSteamId64());
+		break;
+	default:
+		return pContext->ThrowNativeError("Unsupported AuthIdType (%d) for GetServerAuthId.", params[1]);
+	}
+
+	return 1;
+}
+
+static cell_t GetServerAccountId(IPluginContext *pContext, const cell_t *params)
+{
+	return (cell_t)(gamehelpers->GetServerSteamId64() & 0xFFFFFFFF);
+}
+
+REGISTER_NATIVES(halflifeNatives)
+{
+	{ "GetServerAuthId",			GetServerAuthId },
+	{ "GetServerSteamAccountId",	GetServerAccountId },
+	{ nullptr, 						nullptr }
+};

core/logic/smn_players.cpp

@@ -2,7 +2,7 @@
  * vim: set ts=4 sw=4 tw=99 noet :
  * =============================================================================
  * SourceMod
- * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
+ * Copyright (C) 2004-2016 AlliedModders LLC.  All rights reserved.
  * =============================================================================
  *
  * This program is free software; you can redistribute it and/or modify it under
@@ -336,15 +336,6 @@ static cell_t sm_GetClientIP(IPluginContext *pCtx, const cell_t *params)
 	return 1;
 }
 
-// Must match clients.inc
-enum class AuthIdType
-{
-	Engine = 0,
-	Steam2,
-	Steam3,
-	SteamId64,
-};
-
 static cell_t SteamIdToLocal(IPluginContext *pCtx, int index, AuthIdType authType, cell_t local_addr, size_t bytes, bool validate)
 {
 	pCtx->StringToLocal(local_addr, bytes, "STEAM_ID_STOP_IGNORING_RETVALS");