xserver-multidpi/Xi/setcptr.c
Peter Hutterer 2b459f44f3 Xi: return BadImplementation for deviceids 256 and above
The protocol allows for 16 bit device ids, but the implementation doesn't
yet. We need to break the input ABI once more to shift the DeviceIntRec's
CARD8 to a CARD16, along with some changes in the privates.

Once that is done, revert this patch.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2009-06-05 16:09:09 +10:00

107 lines
3.0 KiB
C

/*
* Copyright 2007-2008 Peter Hutterer
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Author: Peter Hutterer, University of South Australia, NICTA
*/
/***********************************************************************
*
* Request to set the client pointer for the owner of the given window.
* All subsequent calls that are ambiguous will choose the client pointer as
* default value.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <X11/X.h> /* for inputstr.h */
#include <X11/Xproto.h> /* Request macro */
#include "inputstr.h" /* DeviceIntPtr */
#include "windowstr.h" /* window structure */
#include "scrnintstr.h" /* screen structure */
#include <X11/extensions/XI.h>
#include <X11/extensions/XI2proto.h>
#include "extnsionst.h"
#include "exevents.h"
#include "exglobals.h"
#include "setcptr.h"
int
SProcXISetClientPointer(ClientPtr client)
{
char n;
REQUEST(xXISetClientPointerReq);
swaps(&stuff->length, n);
REQUEST_SIZE_MATCH(xXISetClientPointerReq);
return (ProcXISetClientPointer(client));
}
int
ProcXISetClientPointer(ClientPtr client)
{
DeviceIntPtr pDev;
ClientPtr targetClient;
int rc;
REQUEST(xXISetClientPointerReq);
REQUEST_SIZE_MATCH(xXISetClientPointerReq);
if (stuff->deviceid > 0xFF) /* FIXME */
{
client->errorValue = stuff->deviceid;
return BadImplementation;
}
rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixWriteAccess);
if (rc != Success)
return rc;
if (!IsPointerDevice(pDev) || !IsMaster(pDev))
{
client->errorValue = stuff->deviceid;
return BadDevice;
}
if (stuff->win != None)
{
rc = dixLookupClient(&targetClient, stuff->win, client,
DixWriteAccess);
if (rc != Success)
return rc;
} else
targetClient = client;
if (!SetClientPointer(targetClient, client, pDev))
{
client->errorValue = stuff->win;
return BadAccess;
}
return Success;
}