797ed93386
One year after Ilja van Sprundel, discovered and reported a large number of issues in the way the X server code base handles requests from X clients, they have been fixed.
109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
/*
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* Copyright 2007-2008 Peter Hutterer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Author: Peter Hutterer, University of South Australia, NICTA
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*/
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/***********************************************************************
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*
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* Request to change a given device pointer's cursor.
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h> /* for inputstr.h */
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#include <X11/Xproto.h> /* Request macro */
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#include "inputstr.h" /* DeviceIntPtr */
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#include "windowstr.h" /* window structure */
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#include "scrnintstr.h" /* screen structure */
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XI2proto.h>
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#include "extnsionst.h"
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#include "exevents.h"
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#include "exglobals.h"
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#include "input.h"
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#include "xichangecursor.h"
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/***********************************************************************
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*
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* This procedure allows a client to set one pointer's cursor.
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*
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*/
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int
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SProcXIChangeCursor(ClientPtr client)
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{
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REQUEST(xXIChangeCursorReq);
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REQUEST_SIZE_MATCH(xXIChangeCursorReq);
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swaps(&stuff->length);
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swapl(&stuff->win);
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swapl(&stuff->cursor);
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swaps(&stuff->deviceid);
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return (ProcXIChangeCursor(client));
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}
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int
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ProcXIChangeCursor(ClientPtr client)
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{
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int rc;
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WindowPtr pWin = NULL;
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DeviceIntPtr pDev = NULL;
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CursorPtr pCursor = NULL;
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REQUEST(xXIChangeCursorReq);
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REQUEST_SIZE_MATCH(xXIChangeCursorReq);
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rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixSetAttrAccess);
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if (rc != Success)
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return rc;
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if (!IsMaster(pDev) || !IsPointerDevice(pDev))
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return BadDevice;
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if (stuff->win != None) {
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rc = dixLookupWindow(&pWin, stuff->win, client, DixSetAttrAccess);
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if (rc != Success)
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return rc;
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}
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if (stuff->cursor == None) {
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if (pWin == pWin->drawable.pScreen->root)
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pCursor = rootCursor;
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else
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pCursor = (CursorPtr) None;
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}
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else {
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rc = dixLookupResourceByType((void **) &pCursor, stuff->cursor,
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RT_CURSOR, client, DixUseAccess);
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if (rc != Success)
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return rc;
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}
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ChangeWindowDeviceCursor(pWin, pDev, pCursor);
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return Success;
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}
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