9cee4ec5e6
arbitrary X status codes instead of just TRUE/FALSE. The dix layer in most cases still does not propagate the return value of XACE hooks back to the client, however. There is more error propagation work to do.
672 lines
19 KiB
C
672 lines
19 KiB
C
/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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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 THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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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>
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#define NEED_REPLIES
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#define NEED_EVENTS
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#include <X11/Xproto.h>
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#include "windowstr.h"
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#include "propertyst.h"
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#include "dixstruct.h"
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#include "dispatch.h"
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#include "swaprep.h"
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#include "xace.h"
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/*****************************************************************
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* Property Stuff
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*
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* ChangeProperty, DeleteProperty, GetProperties,
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* ListProperties
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*
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* Properties below to windows. A allocate slots each time
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* a property is added. No fancy searching done.
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*
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*****************************************************************/
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#ifdef notdef
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static void
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PrintPropertys(WindowPtr pWin)
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{
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PropertyPtr pProp;
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int j;
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pProp = pWin->userProps;
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while (pProp)
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{
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ErrorF( "%x %x\n", pProp->propertyName, pProp->type);
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ErrorF("property format: %d\n", pProp->format);
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ErrorF("property data: \n");
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for (j=0; j<(pProp->format/8)*pProp->size; j++)
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ErrorF("%c\n", pProp->data[j]);
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pProp = pProp->next;
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}
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}
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#endif
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static _X_INLINE PropertyPtr
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FindProperty(WindowPtr pWin, Atom propertyName)
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{
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PropertyPtr pProp = wUserProps(pWin);
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while (pProp)
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{
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if (pProp->propertyName == propertyName)
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break;
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pProp = pProp->next;
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}
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return pProp;
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}
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int
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ProcRotateProperties(ClientPtr client)
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{
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int i, j, delta, rc;
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REQUEST(xRotatePropertiesReq);
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WindowPtr pWin;
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Atom * atoms;
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PropertyPtr * props; /* array of pointer */
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PropertyPtr pProp;
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xEvent event;
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REQUEST_FIXED_SIZE(xRotatePropertiesReq, stuff->nAtoms << 2);
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UpdateCurrentTime();
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rc = dixLookupWindow(&pWin, stuff->window, client, DixWriteAccess);
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if (rc != Success)
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return rc;
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if (!stuff->nAtoms)
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return(Success);
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atoms = (Atom *) & stuff[1];
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props = (PropertyPtr *)ALLOCATE_LOCAL(stuff->nAtoms * sizeof(PropertyPtr));
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if (!props)
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return(BadAlloc);
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for (i = 0; i < stuff->nAtoms; i++)
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{
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if (!ValidAtom(atoms[i])) {
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DEALLOCATE_LOCAL(props);
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client->errorValue = atoms[i];
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return BadAtom;
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}
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for (j = i + 1; j < stuff->nAtoms; j++)
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if (atoms[j] == atoms[i])
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{
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DEALLOCATE_LOCAL(props);
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return BadMatch;
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}
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pProp = FindProperty(pWin, atoms[i]);
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if (!pProp) {
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DEALLOCATE_LOCAL(props);
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return BadMatch;
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}
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rc = XaceHook(XACE_PROPERTY_ACCESS, client, pWin, pProp,
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DixReadAccess|DixWriteAccess);
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if (rc != Success) {
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DEALLOCATE_LOCAL(props);
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client->errorValue = atoms[i];
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return (rc == XaceIgnoreError) ? Success : rc;
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}
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props[i] = pProp;
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}
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delta = stuff->nPositions;
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/* If the rotation is a complete 360 degrees, then moving the properties
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around and generating PropertyNotify events should be skipped. */
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if ( (stuff->nAtoms != 0) && (abs(delta) % stuff->nAtoms) != 0 )
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{
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while (delta < 0) /* faster if abs value is small */
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delta += stuff->nAtoms;
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for (i = 0; i < stuff->nAtoms; i++)
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{
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/* Generate a PropertyNotify event for each property whose value
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is changed in the order in which they appear in the request. */
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event.u.u.type = PropertyNotify;
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event.u.property.window = pWin->drawable.id;
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event.u.property.state = PropertyNewValue;
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event.u.property.atom = props[i]->propertyName;
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event.u.property.time = currentTime.milliseconds;
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DeliverEvents(pWin, &event, 1, (WindowPtr)NULL);
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props[i]->propertyName = atoms[(i + delta) % stuff->nAtoms];
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}
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}
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DEALLOCATE_LOCAL(props);
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return Success;
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}
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int
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ProcChangeProperty(ClientPtr client)
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{
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WindowPtr pWin;
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char format, mode;
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unsigned long len;
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int sizeInBytes, totalSize, err;
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REQUEST(xChangePropertyReq);
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REQUEST_AT_LEAST_SIZE(xChangePropertyReq);
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UpdateCurrentTime();
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format = stuff->format;
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mode = stuff->mode;
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if ((mode != PropModeReplace) && (mode != PropModeAppend) &&
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(mode != PropModePrepend))
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{
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client->errorValue = mode;
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return BadValue;
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}
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if ((format != 8) && (format != 16) && (format != 32))
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{
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client->errorValue = format;
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return BadValue;
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}
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len = stuff->nUnits;
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if (len > ((0xffffffff - sizeof(xChangePropertyReq)) >> 2))
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return BadLength;
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sizeInBytes = format>>3;
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totalSize = len * sizeInBytes;
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REQUEST_FIXED_SIZE(xChangePropertyReq, totalSize);
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err = dixLookupWindow(&pWin, stuff->window, client, DixWriteAccess);
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if (err != Success)
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return err;
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if (!ValidAtom(stuff->property))
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{
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client->errorValue = stuff->property;
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return(BadAtom);
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}
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if (!ValidAtom(stuff->type))
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{
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client->errorValue = stuff->type;
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return(BadAtom);
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}
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err = dixChangeWindowProperty(client, pWin, stuff->property, stuff->type,
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(int)format, (int)mode, len, &stuff[1],
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TRUE);
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if (err != Success)
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return err;
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else
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return client->noClientException;
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}
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_X_EXPORT int
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dixChangeWindowProperty(ClientPtr pClient, WindowPtr pWin, Atom property,
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Atom type, int format, int mode, unsigned long len,
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pointer value, Bool sendevent)
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{
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PropertyPtr pProp;
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xEvent event;
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int sizeInBytes, totalSize, rc;
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pointer data;
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sizeInBytes = format>>3;
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totalSize = len * sizeInBytes;
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/* first see if property already exists */
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pProp = FindProperty(pWin, property);
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if (!pProp) /* just add to list */
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{
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if (!pWin->optional && !MakeWindowOptional (pWin))
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return(BadAlloc);
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pProp = (PropertyPtr)xalloc(sizeof(PropertyRec));
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if (!pProp)
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return(BadAlloc);
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data = (pointer)xalloc(totalSize);
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if (!data && len)
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{
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xfree(pProp);
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return(BadAlloc);
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}
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pProp->propertyName = property;
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pProp->type = type;
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pProp->format = format;
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pProp->data = data;
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if (len)
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memmove((char *)data, (char *)value, totalSize);
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pProp->size = len;
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pProp->devPrivates = NULL;
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rc = XaceHook(XACE_PROPERTY_ACCESS, pClient, pWin, pProp,
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DixCreateAccess);
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if (rc != Success) {
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xfree(data);
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xfree(pProp);
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pClient->errorValue = property;
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return (rc == XaceIgnoreError) ? Success : rc;
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}
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pProp->next = pWin->optional->userProps;
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pWin->optional->userProps = pProp;
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}
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else
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{
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rc = XaceHook(XACE_PROPERTY_ACCESS, pClient, pWin, pProp,
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DixWriteAccess);
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if (rc != Success) {
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pClient->errorValue = property;
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return (rc == XaceIgnoreError) ? Success : rc;
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}
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/* To append or prepend to a property the request format and type
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must match those of the already defined property. The
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existing format and type are irrelevant when using the mode
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"PropModeReplace" since they will be written over. */
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if ((format != pProp->format) && (mode != PropModeReplace))
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return(BadMatch);
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if ((pProp->type != type) && (mode != PropModeReplace))
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return(BadMatch);
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if (mode == PropModeReplace)
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{
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if (totalSize != pProp->size * (pProp->format >> 3))
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{
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data = (pointer)xrealloc(pProp->data, totalSize);
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if (!data && len)
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return(BadAlloc);
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pProp->data = data;
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}
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if (len)
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memmove((char *)pProp->data, (char *)value, totalSize);
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pProp->size = len;
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pProp->type = type;
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pProp->format = format;
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}
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else if (len == 0)
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{
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/* do nothing */
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}
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else if (mode == PropModeAppend)
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{
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data = (pointer)xrealloc(pProp->data,
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sizeInBytes * (len + pProp->size));
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if (!data)
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return(BadAlloc);
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pProp->data = data;
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memmove(&((char *)data)[pProp->size * sizeInBytes],
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(char *)value,
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totalSize);
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pProp->size += len;
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}
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else if (mode == PropModePrepend)
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{
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data = (pointer)xalloc(sizeInBytes * (len + pProp->size));
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if (!data)
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return(BadAlloc);
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memmove(&((char *)data)[totalSize], (char *)pProp->data,
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(int)(pProp->size * sizeInBytes));
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memmove((char *)data, (char *)value, totalSize);
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xfree(pProp->data);
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pProp->data = data;
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pProp->size += len;
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}
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}
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if (sendevent)
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{
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event.u.u.type = PropertyNotify;
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event.u.property.window = pWin->drawable.id;
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event.u.property.state = PropertyNewValue;
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event.u.property.atom = pProp->propertyName;
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event.u.property.time = currentTime.milliseconds;
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DeliverEvents(pWin, &event, 1, (WindowPtr)NULL);
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}
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return(Success);
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}
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_X_EXPORT int
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ChangeWindowProperty(WindowPtr pWin, Atom property, Atom type, int format,
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int mode, unsigned long len, pointer value,
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Bool sendevent)
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{
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return dixChangeWindowProperty(serverClient, pWin, property, type, format,
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mode, len, value, sendevent);
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}
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int
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DeleteProperty(WindowPtr pWin, Atom propName)
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{
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PropertyPtr pProp, prevProp;
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xEvent event;
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if (!(pProp = wUserProps (pWin)))
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return(Success);
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prevProp = (PropertyPtr)NULL;
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while (pProp)
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{
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if (pProp->propertyName == propName)
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break;
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prevProp = pProp;
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pProp = pProp->next;
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}
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if (pProp)
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{
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if (prevProp == (PropertyPtr)NULL) /* takes care of head */
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{
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if (!(pWin->optional->userProps = pProp->next))
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CheckWindowOptionalNeed (pWin);
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}
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else
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{
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prevProp->next = pProp->next;
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}
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event.u.u.type = PropertyNotify;
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event.u.property.window = pWin->drawable.id;
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event.u.property.state = PropertyDelete;
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event.u.property.atom = pProp->propertyName;
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event.u.property.time = currentTime.milliseconds;
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DeliverEvents(pWin, &event, 1, (WindowPtr)NULL);
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dixFreePrivates(pProp->devPrivates);
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xfree(pProp->data);
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xfree(pProp);
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}
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return(Success);
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}
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void
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DeleteAllWindowProperties(WindowPtr pWin)
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{
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PropertyPtr pProp, pNextProp;
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xEvent event;
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pProp = wUserProps (pWin);
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while (pProp)
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{
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event.u.u.type = PropertyNotify;
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event.u.property.window = pWin->drawable.id;
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event.u.property.state = PropertyDelete;
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event.u.property.atom = pProp->propertyName;
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event.u.property.time = currentTime.milliseconds;
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DeliverEvents(pWin, &event, 1, (WindowPtr)NULL);
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pNextProp = pProp->next;
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dixFreePrivates(pProp->devPrivates);
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xfree(pProp->data);
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xfree(pProp);
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pProp = pNextProp;
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}
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}
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static int
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NullPropertyReply(
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ClientPtr client,
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ATOM propertyType,
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int format,
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xGetPropertyReply *reply)
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{
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reply->nItems = 0;
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reply->length = 0;
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reply->bytesAfter = 0;
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reply->propertyType = propertyType;
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reply->format = format;
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WriteReplyToClient(client, sizeof(xGenericReply), reply);
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return(client->noClientException);
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}
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/*****************
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* GetProperty
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* If type Any is specified, returns the property from the specified
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* window regardless of its type. If a type is specified, returns the
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* property only if its type equals the specified type.
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* If delete is True and a property is returned, the property is also
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* deleted from the window and a PropertyNotify event is generated on the
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* window.
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*****************/
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int
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ProcGetProperty(ClientPtr client)
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{
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PropertyPtr pProp, prevProp;
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unsigned long n, len, ind;
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int rc;
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WindowPtr pWin;
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xGetPropertyReply reply;
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Mask access_mode = DixReadAccess;
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REQUEST(xGetPropertyReq);
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REQUEST_SIZE_MATCH(xGetPropertyReq);
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if (stuff->delete)
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UpdateCurrentTime();
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rc = dixLookupWindow(&pWin, stuff->window, client, DixReadAccess);
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if (rc != Success)
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return rc;
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|
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if (!ValidAtom(stuff->property))
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{
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client->errorValue = stuff->property;
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return(BadAtom);
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}
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if ((stuff->delete != xTrue) && (stuff->delete != xFalse))
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{
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client->errorValue = stuff->delete;
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return(BadValue);
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}
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if ((stuff->type != AnyPropertyType) && !ValidAtom(stuff->type))
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{
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client->errorValue = stuff->type;
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return(BadAtom);
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}
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pProp = wUserProps (pWin);
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prevProp = (PropertyPtr)NULL;
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while (pProp)
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{
|
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if (pProp->propertyName == stuff->property)
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break;
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prevProp = pProp;
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pProp = pProp->next;
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}
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reply.type = X_Reply;
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reply.sequenceNumber = client->sequence;
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if (!pProp)
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return NullPropertyReply(client, None, 0, &reply);
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if (stuff->delete)
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access_mode |= DixDestroyAccess;
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rc = XaceHook(XACE_PROPERTY_ACCESS, client, pWin, pProp, access_mode);
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if (rc != Success) {
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client->errorValue = stuff->property;
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return (rc == XaceIgnoreError) ?
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NullPropertyReply(client, pProp->type, pProp->format, &reply) : rc;
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}
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/* If the request type and actual type don't match. Return the
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property information, but not the data. */
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if (((stuff->type != pProp->type) &&
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(stuff->type != AnyPropertyType))
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)
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{
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reply.bytesAfter = pProp->size;
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reply.format = pProp->format;
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reply.length = 0;
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reply.nItems = 0;
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reply.propertyType = pProp->type;
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WriteReplyToClient(client, sizeof(xGenericReply), &reply);
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return(Success);
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}
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/*
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* Return type, format, value to client
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*/
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n = (pProp->format/8) * pProp->size; /* size (bytes) of prop */
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ind = stuff->longOffset << 2;
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/* If longOffset is invalid such that it causes "len" to
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be negative, it's a value error. */
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if (n < ind)
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{
|
|
client->errorValue = stuff->longOffset;
|
|
return BadValue;
|
|
}
|
|
|
|
len = min(n - ind, 4 * stuff->longLength);
|
|
|
|
reply.bytesAfter = n - (ind + len);
|
|
reply.format = pProp->format;
|
|
reply.length = (len + 3) >> 2;
|
|
reply.nItems = len / (pProp->format / 8 );
|
|
reply.propertyType = pProp->type;
|
|
|
|
if (stuff->delete && (reply.bytesAfter == 0))
|
|
{ /* send the event */
|
|
xEvent event;
|
|
|
|
event.u.u.type = PropertyNotify;
|
|
event.u.property.window = pWin->drawable.id;
|
|
event.u.property.state = PropertyDelete;
|
|
event.u.property.atom = pProp->propertyName;
|
|
event.u.property.time = currentTime.milliseconds;
|
|
DeliverEvents(pWin, &event, 1, (WindowPtr)NULL);
|
|
}
|
|
|
|
WriteReplyToClient(client, sizeof(xGenericReply), &reply);
|
|
if (len)
|
|
{
|
|
switch (reply.format) {
|
|
case 32: client->pSwapReplyFunc = (ReplySwapPtr)CopySwap32Write; break;
|
|
case 16: client->pSwapReplyFunc = (ReplySwapPtr)CopySwap16Write; break;
|
|
default: client->pSwapReplyFunc = (ReplySwapPtr)WriteToClient; break;
|
|
}
|
|
WriteSwappedDataToClient(client, len,
|
|
(char *)pProp->data + ind);
|
|
}
|
|
|
|
if (stuff->delete && (reply.bytesAfter == 0))
|
|
{ /* delete the Property */
|
|
if (prevProp == (PropertyPtr)NULL) /* takes care of head */
|
|
{
|
|
if (!(pWin->optional->userProps = pProp->next))
|
|
CheckWindowOptionalNeed (pWin);
|
|
}
|
|
else
|
|
prevProp->next = pProp->next;
|
|
dixFreePrivates(pProp->devPrivates);
|
|
xfree(pProp->data);
|
|
xfree(pProp);
|
|
}
|
|
return(client->noClientException);
|
|
}
|
|
|
|
int
|
|
ProcListProperties(ClientPtr client)
|
|
{
|
|
Atom *pAtoms = NULL, *temppAtoms;
|
|
xListPropertiesReply xlpr;
|
|
int rc, numProps = 0;
|
|
WindowPtr pWin;
|
|
PropertyPtr pProp;
|
|
REQUEST(xResourceReq);
|
|
|
|
REQUEST_SIZE_MATCH(xResourceReq);
|
|
rc = dixLookupWindow(&pWin, stuff->id, client, DixReadAccess);
|
|
if (rc != Success)
|
|
return rc;
|
|
|
|
pProp = wUserProps (pWin);
|
|
while (pProp)
|
|
{
|
|
pProp = pProp->next;
|
|
numProps++;
|
|
}
|
|
if (numProps)
|
|
if(!(pAtoms = (Atom *)ALLOCATE_LOCAL(numProps * sizeof(Atom))))
|
|
return(BadAlloc);
|
|
|
|
xlpr.type = X_Reply;
|
|
xlpr.nProperties = numProps;
|
|
xlpr.length = (numProps * sizeof(Atom)) >> 2;
|
|
xlpr.sequenceNumber = client->sequence;
|
|
pProp = wUserProps (pWin);
|
|
temppAtoms = pAtoms;
|
|
while (pProp)
|
|
{
|
|
*temppAtoms++ = pProp->propertyName;
|
|
pProp = pProp->next;
|
|
}
|
|
WriteReplyToClient(client, sizeof(xGenericReply), &xlpr);
|
|
if (numProps)
|
|
{
|
|
client->pSwapReplyFunc = (ReplySwapPtr)Swap32Write;
|
|
WriteSwappedDataToClient(client, numProps * sizeof(Atom), pAtoms);
|
|
DEALLOCATE_LOCAL(pAtoms);
|
|
}
|
|
return(client->noClientException);
|
|
}
|
|
|
|
int
|
|
ProcDeleteProperty(ClientPtr client)
|
|
{
|
|
WindowPtr pWin;
|
|
REQUEST(xDeletePropertyReq);
|
|
int result;
|
|
|
|
REQUEST_SIZE_MATCH(xDeletePropertyReq);
|
|
UpdateCurrentTime();
|
|
result = dixLookupWindow(&pWin, stuff->window, client, DixWriteAccess);
|
|
if (result != Success)
|
|
return result;
|
|
if (!ValidAtom(stuff->property))
|
|
{
|
|
client->errorValue = stuff->property;
|
|
return (BadAtom);
|
|
}
|
|
|
|
result = XaceHook(XACE_PROPERTY_ACCESS, client, pWin,
|
|
FindProperty(pWin, stuff->property), DixDestroyAccess);
|
|
if (result != Success) {
|
|
client->errorValue = stuff->property;
|
|
return (result == XaceIgnoreError) ? Success : result;
|
|
}
|
|
|
|
result = DeleteProperty(pWin, stuff->property);
|
|
if (client->noClientException != Success)
|
|
return(client->noClientException);
|
|
else
|
|
return(result);
|
|
}
|