122 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			122 lines
		
	
	
		
			3.6 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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#define	 NEED_EVENTS
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#define	 NEED_REPLIES
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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/XIproto.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 "qryacces.h"
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/***********************************************************************
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 * This procedure allows a client to query window access control.
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 */
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int
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SProcXQueryWindowAccess(ClientPtr client)
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{
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    char n;
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    REQUEST(xQueryWindowAccessReq);
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    swaps(&stuff->length, n);
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    swapl(&stuff->win, n);
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    return ProcXQueryWindowAccess(client);
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}
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int
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ProcXQueryWindowAccess(ClientPtr client)
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{
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    int rc;
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    WindowPtr win;
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    DeviceIntPtr *perm, *deny;
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    int nperm, ndeny, i;
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    int defaultRule;
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    XID* deviceids;
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    xQueryWindowAccessReply rep;
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    REQUEST(xQueryWindowAccessReq);
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    REQUEST_SIZE_MATCH(xQueryWindowAccessReq);
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    rc = dixLookupWindow(&win, stuff->win, client, DixReadAccess);
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    if (rc != Success)
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    {
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        return rc;
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    }
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    ACQueryWindowAccess(win, &defaultRule, &perm, &nperm, &deny, &ndeny);
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    rep.repType = X_Reply;
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    rep.RepType = X_QueryWindowAccess;
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    rep.sequenceNumber = client->sequence;
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    rep.length = ((nperm + ndeny) * sizeof(XID) + 3) >> 2;
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    rep.defaultRule = defaultRule;
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    rep.npermit = nperm;
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    rep.ndeny = ndeny;
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    WriteReplyToClient(client, sizeof(xQueryWindowAccessReply), &rep);
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    if (nperm + ndeny)
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    {
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        deviceids = (XID*)xalloc((nperm + ndeny) * sizeof(XID));
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        if (!deviceids)
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        {
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            ErrorF("[Xi] ProcXQueryWindowAccess: xalloc failure.\n");
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            return BadImplementation;
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        }
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        for (i = 0; i < nperm; i++)
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            deviceids[i] = perm[i]->id;
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        for (i = 0; i < ndeny; i++)
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            deviceids[i + nperm] = deny[i]->id;
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        WriteToClient(client, (nperm + ndeny) * sizeof(XID), (char*)deviceids);
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        xfree(deviceids);
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    }
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    return Success;
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}
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void
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SRepXQueryWindowAccess(ClientPtr client,
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                      int size,
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                      xQueryWindowAccessReply* rep)
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{
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    char n;
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    swaps(&rep->sequenceNumber, n);
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    swapl(&rep->length, n);
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    WriteToClient(client, size, (char*)rep);
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}
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