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.
108 lines
3.4 KiB
C
108 lines
3.4 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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#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 "extinit.h" /* LookupDeviceIntRec */
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#include "exevents.h"
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#include "exglobals.h"
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#include "xigetclientpointer.h"
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/***********************************************************************
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* This procedure allows a client to query another client's client pointer
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* setting.
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*/
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int
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SProcXIGetClientPointer(ClientPtr client)
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{
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REQUEST(xXIGetClientPointerReq);
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REQUEST_SIZE_MATCH(xXIGetClientPointerReq);
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swaps(&stuff->length);
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swapl(&stuff->win);
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return ProcXIGetClientPointer(client);
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}
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int
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ProcXIGetClientPointer(ClientPtr client)
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{
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int rc;
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ClientPtr winclient;
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xXIGetClientPointerReply rep;
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REQUEST(xXIGetClientPointerReq);
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REQUEST_SIZE_MATCH(xXIGetClientPointerReq);
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if (stuff->win != None) {
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rc = dixLookupClient(&winclient, stuff->win, client, DixGetAttrAccess);
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if (rc != Success)
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return BadWindow;
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}
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else
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winclient = client;
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rep = (xXIGetClientPointerReply) {
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.repType = X_Reply,
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.RepType = X_XIGetClientPointer,
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.sequenceNumber = client->sequence,
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.length = 0,
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.set = (winclient->clientPtr != NULL),
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.deviceid = (winclient->clientPtr) ? winclient->clientPtr->id : 0
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};
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WriteReplyToClient(client, sizeof(xXIGetClientPointerReply), &rep);
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return Success;
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}
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/***********************************************************************
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*
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* This procedure writes the reply for the XGetClientPointer function,
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* if the client and server have a different byte ordering.
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*
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*/
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void
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SRepXIGetClientPointer(ClientPtr client, int size,
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xXIGetClientPointerReply * rep)
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{
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swaps(&rep->sequenceNumber);
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swapl(&rep->length);
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swaps(&rep->deviceid);
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WriteToClient(client, size, rep);
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}
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