124 lines
3.6 KiB
C++
124 lines
3.6 KiB
C++
/**
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* vim: set ts=4 :
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* =============================================================================
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* SourceMod
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* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
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* =============================================================================
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, version 3.0, as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* As a special exception, AlliedModders LLC gives you permission to link the
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* code of this program (as well as its derivative works) to "Half-Life 2," the
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* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
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* by the Valve Corporation. You must obey the GNU General Public License in
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* all respects for all other code used. Additionally, AlliedModders LLC grants
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* this exception to all derivative works. AlliedModders LLC defines further
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* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
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* or <http://www.sourcemod.net/license.php>.
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*
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* Version: $Id$
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*/
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#include "common_logic.h"
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#include <IHandleSys.h>
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#include <IPluginSys.h>
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using namespace SourceMod;
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static cell_t sm_IsValidHandle(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t hndl = static_cast<Handle_t>(params[1]);
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HandleError err = handlesys->ReadHandle(hndl, 0, NULL, NULL);
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if (err != HandleError_Access
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&& err != HandleError_None)
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{
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return 0;
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}
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return 1;
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}
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static cell_t sm_CloseHandle(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t hndl = static_cast<Handle_t>(params[1]);
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if (!hndl)
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return 0;
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HandleSecurity sec;
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sec.pIdentity = NULL;
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sec.pOwner = pContext->GetIdentity();
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HandleError err = handlesys->FreeHandle(hndl, &sec);
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if (err == HandleError_None)
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{
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return 1;
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} else if (err == HandleError_Access) {
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return 0;
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} else {
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return pContext->ThrowNativeError("Handle %x is invalid (error %d)", hndl, err);
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}
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}
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static cell_t sm_CloneHandle(IPluginContext *pContext, const cell_t *params)
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{
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Handle_t new_hndl;
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Handle_t hndl = static_cast<Handle_t>(params[1]);
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HandleError err;
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IdentityToken_t *pNewOwner;
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if (params[2] == 0)
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{
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pNewOwner = pContext->GetIdentity();
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} else {
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Handle_t hPlugin = static_cast<Handle_t>(params[2]);
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IPlugin *pPlugin = pluginsys->PluginFromHandle(hPlugin, &err);
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if (!pPlugin)
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{
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return pContext->ThrowNativeError("Plugin handle %x is invalid (error %d)", hndl, err);
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}
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pNewOwner = pPlugin->GetIdentity();
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}
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err = handlesys->CloneHandle(hndl, &new_hndl, pNewOwner, NULL);
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if (err == HandleError_Access)
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{
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return 0;
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} else if (err == HandleError_None) {
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return new_hndl;
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} else {
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return pContext->ThrowNativeError("Handle %x cannot be cloned because it is invalid (error %d)", hndl, err);
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}
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}
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static cell_t sm_GetMyHandle(IPluginContext *pContext, const cell_t *params)
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{
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IPlugin *pPlugin = pluginsys->FindPluginByContext(pContext->GetContext());
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return pPlugin->GetMyHandle();
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}
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REGISTER_NATIVES(handles)
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{
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{"IsValidHandle", sm_IsValidHandle},
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{"CloseHandle", sm_CloseHandle},
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{"CloneHandle", sm_CloneHandle},
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{"GetMyHandle", sm_GetMyHandle},
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{NULL, NULL},
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};
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