xserver git update 15/5/2010

1 files changed, 645 insertions, 649 deletions

diff --git a/xorg-server/dix/property.c b/xorg-server/dix/property.c
index 9ec5dc6ae..7c4bd62d2 100644
--- a/xorg-server/dix/property.c
+++ b/xorg-server/dix/property.c
@@ -1,649 +1,645 @@
-/***********************************************************
-
-Copyright 1987, 1998  The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice 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
-OPEN GROUP 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.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include "windowstr.h"
-#include "propertyst.h"
-#include "dixstruct.h"
-#include "dispatch.h"
-#include "swaprep.h"
-#include "xace.h"
-
-/*****************************************************************
- * Property Stuff
- *
- *    dixLookupProperty, dixChangeProperty, DeleteProperty
- *
- *   Properties belong to windows.  The list of properties should not be
- *   traversed directly.  Instead, use the three functions listed above.
- *
- *****************************************************************/
-
-#ifdef notdef
-static void
-PrintPropertys(WindowPtr pWin)
-{
-    PropertyPtr pProp;
-    int j;
-
-    pProp = pWin->userProps;
-    while (pProp)
-    {
-        ErrorF("[dix] %x %x\n", pProp->propertyName, pProp->type);
-        ErrorF("[dix] property format: %d\n", pProp->format);
-        ErrorF("[dix] property data: \n");
-        for (j=0; j<(pProp->format/8)*pProp->size; j++)
-           ErrorF("[dix] %c\n", pProp->data[j]);
-        pProp = pProp->next;
-    }
-}
-#endif
-
-int
-dixLookupProperty(PropertyPtr *result, WindowPtr pWin, Atom propertyName,
-		  ClientPtr client, Mask access_mode)
-{
-    PropertyPtr pProp;
-    int rc = BadMatch;
-    client->errorValue = propertyName;
-
-    for (pProp = wUserProps(pWin); pProp; pProp = pProp->next)
-	if (pProp->propertyName == propertyName)
-	    break;
-
-    if (pProp)
-	rc = XaceHookPropertyAccess(client, pWin, &pProp, access_mode);
-    *result = pProp;
-    return rc;
-}
-
-static void
-deliverPropertyNotifyEvent(WindowPtr pWin, int state, Atom atom)
-{
-    xEvent event;
-
-    memset(&event, 0, sizeof(xEvent));
-    event.u.u.type = PropertyNotify;
-    event.u.property.window = pWin->drawable.id;
-    event.u.property.state = state;
-    event.u.property.atom = atom;
-    event.u.property.time = currentTime.milliseconds;
-    DeliverEvents(pWin, &event, 1, (WindowPtr)NULL);
-}
-
-int
-ProcRotateProperties(ClientPtr client)
-{
-    int     i, j, delta, rc;
-    REQUEST(xRotatePropertiesReq);
-    WindowPtr pWin;
-    Atom * atoms;
-    PropertyPtr * props;               /* array of pointer */
-    PropertyPtr pProp, saved;
-
-    REQUEST_FIXED_SIZE(xRotatePropertiesReq, stuff->nAtoms << 2);
-    UpdateCurrentTime();
-    rc = dixLookupWindow(&pWin, stuff->window, client, DixSetPropAccess);
-    if (rc != Success || stuff->nAtoms <= 0)
-        return rc;
-
-    atoms = (Atom *) & stuff[1];
-    props = xalloc(stuff->nAtoms * sizeof(PropertyPtr));
-    saved = xalloc(stuff->nAtoms * sizeof(PropertyRec));
-    if (!props || !saved) {
-	rc = BadAlloc;
-	goto out;
-    }
-
-    for (i = 0; i < stuff->nAtoms; i++)
-    {
-        if (!ValidAtom(atoms[i])) {
-	    rc = BadAtom;
-	    client->errorValue = atoms[i];
-	    goto out;
-        }
-        for (j = i + 1; j < stuff->nAtoms; j++)
-            if (atoms[j] == atoms[i])
-            {
-		rc = BadMatch;
-		goto out;
-            }
-
-	rc = dixLookupProperty(&pProp, pWin, atoms[i], client,
-			       DixReadAccess|DixWriteAccess);
-	if (rc != Success)
-	    goto out;
-
-        props[i] = pProp;
-	saved[i] = *pProp;
-    }
-    delta = stuff->nPositions;
-
-    /* If the rotation is a complete 360 degrees, then moving the properties
-	around and generating PropertyNotify events should be skipped. */
-
-    if (abs(delta) % stuff->nAtoms)
-    {
-	while (delta < 0)                  /* faster if abs value is small */
-            delta += stuff->nAtoms;
-    	for (i = 0; i < stuff->nAtoms; i++)
- 	{
-	    j = (i + delta) % stuff->nAtoms;
-	    deliverPropertyNotifyEvent(pWin, PropertyNewValue, atoms[i]);
-
-	    /* Preserve name and devPrivates */
-	    props[j]->type = saved[i].type;
-	    props[j]->format = saved[i].format;
-	    props[j]->size = saved[i].size;
-	    props[j]->data = saved[i].data;
-	}
-    }
-out:
-    xfree(saved);
-    xfree(props);
-    return rc;
-}
-
-int 
-ProcChangeProperty(ClientPtr client)
-{	      
-    WindowPtr pWin;
-    char format, mode;
-    unsigned long len;
-    int sizeInBytes, totalSize, err;
-    REQUEST(xChangePropertyReq);
-
-    REQUEST_AT_LEAST_SIZE(xChangePropertyReq);
-    UpdateCurrentTime();
-    format = stuff->format;
-    mode = stuff->mode;
-    if ((mode != PropModeReplace) && (mode != PropModeAppend) &&
-	(mode != PropModePrepend))
-    {
-	client->errorValue = mode;
-	return BadValue;
-    }
-    if ((format != 8) && (format != 16) && (format != 32))
-    {
-	client->errorValue = format;
-        return BadValue;
-    }
-    len = stuff->nUnits;
-    if (len > bytes_to_int32(0xffffffff - sizeof(xChangePropertyReq)))
-	return BadLength;
-    sizeInBytes = format>>3;
-    totalSize = len * sizeInBytes;
-    REQUEST_FIXED_SIZE(xChangePropertyReq, totalSize);
-
-    err = dixLookupWindow(&pWin, stuff->window, client, DixSetPropAccess);
-    if (err != Success)
-	return err;
-    if (!ValidAtom(stuff->property))
-    {
-	client->errorValue = stuff->property;
-	return(BadAtom);
-    }
-    if (!ValidAtom(stuff->type))
-    {
-	client->errorValue = stuff->type;
-	return(BadAtom);
-    }
-
-    err = dixChangeWindowProperty(client, pWin, stuff->property, stuff->type,
-				  (int)format, (int)mode, len, &stuff[1],
-				  TRUE);
-    if (err != Success)
-	return err;
-    else
-	return client->noClientException;
-}
-
-int
-dixChangeWindowProperty(ClientPtr pClient, WindowPtr pWin, Atom property,
-			Atom type, int format, int mode, unsigned long len,
-			pointer value, Bool sendevent)
-{
-    PropertyPtr pProp;
-    PropertyRec savedProp;
-    int sizeInBytes, totalSize, rc;
-    unsigned char *data;
-    Mask access_mode;
-
-    sizeInBytes = format>>3;
-    totalSize = len * sizeInBytes;
-    access_mode = (mode == PropModeReplace) ? DixWriteAccess : DixBlendAccess;
-
-    /* first see if property already exists */
-    rc = dixLookupProperty(&pProp, pWin, property, pClient, access_mode);
-
-    if (rc == BadMatch)   /* just add to list */
-    {
-	if (!pWin->optional && !MakeWindowOptional (pWin))
-	    return(BadAlloc);
-        pProp = xalloc(sizeof(PropertyRec));
-	if (!pProp)
-	    return(BadAlloc);
-        data = xalloc(totalSize);
-	if (!data && len)
-	{
-	    xfree(pProp);
-	    return(BadAlloc);
-	}
-        memcpy(data, value, totalSize);
-        pProp->propertyName = property;
-        pProp->type = type;
-        pProp->format = format;
-        pProp->data = data;
-	pProp->size = len;
-	pProp->devPrivates = NULL;
-	rc = XaceHookPropertyAccess(pClient, pWin, &pProp,
-				    DixCreateAccess|DixWriteAccess);
-	if (rc != Success) {
-	    xfree(data);
-	    xfree(pProp);
-	    pClient->errorValue = property;
-	    return rc;
-	}
-        pProp->next = pWin->optional->userProps;
-        pWin->optional->userProps = pProp;
-    }
-    else if (rc == Success)
-    {
-	/* To append or prepend to a property the request format and type
-		must match those of the already defined property.  The
-		existing format and type are irrelevant when using the mode
-		"PropModeReplace" since they will be written over. */
-
-        if ((format != pProp->format) && (mode != PropModeReplace))
-	    return(BadMatch);
-        if ((pProp->type != type) && (mode != PropModeReplace))
-            return(BadMatch);
-
-	/* save the old values for later */
-	savedProp = *pProp;
-
-        if (mode == PropModeReplace)
-        {
-	    data = xalloc(totalSize);
-	    if (!data && len)
-		return(BadAlloc);
-	    memcpy(data, value, totalSize);
-	    pProp->data = data;
-	    pProp->size = len;
-    	    pProp->type = type;
-	    pProp->format = format;
-	}
-	else if (len == 0)
-	{
-	    /* do nothing */
-	}
-        else if (mode == PropModeAppend)
-        {
-	    data = xalloc((pProp->size + len) * sizeInBytes);
-	    if (!data)
-		return(BadAlloc);
-	    memcpy(data, pProp->data, pProp->size * sizeInBytes);
-	    memcpy(data + pProp->size * sizeInBytes, value, totalSize);
-            pProp->data = data;
-            pProp->size += len;
-	}
-        else if (mode == PropModePrepend)
-        {
-            data = xalloc(sizeInBytes * (len + pProp->size));
-	    if (!data)
-		return(BadAlloc);
-            memcpy(data + totalSize, pProp->data, pProp->size * sizeInBytes);
-            memcpy(data, value, totalSize);
-            pProp->data = data;
-            pProp->size += len;
-	}
-
-	/* Allow security modules to check the new content */
-	access_mode |= DixPostAccess;
-	rc = XaceHookPropertyAccess(pClient, pWin, &pProp, access_mode);
-	if (rc == Success)
-	{
-	    if (savedProp.data != pProp->data)
-		xfree(savedProp.data);
-	}
-	else
-	{
-	    if (savedProp.data != pProp->data)
-		xfree(pProp->data);
-	    *pProp = savedProp;
-	    return rc;
-	}
-    }
-    else
-	return rc;
-
-    if (sendevent)
-	deliverPropertyNotifyEvent(pWin, PropertyNewValue, pProp->propertyName);
-
-    return(Success);
-}
-
-int
-ChangeWindowProperty(WindowPtr pWin, Atom property, Atom type, int format, 
-		     int mode, unsigned long len, pointer value, 
-		     Bool sendevent)
-{
-    return dixChangeWindowProperty(serverClient, pWin, property, type, format,
-				   mode, len, value, sendevent);
-}
-
-int
-DeleteProperty(ClientPtr client, WindowPtr pWin, Atom propName)
-{
-    PropertyPtr pProp, prevProp;
-    int rc;
-
-    rc = dixLookupProperty(&pProp, pWin, propName, client, DixDestroyAccess);
-    if (rc == BadMatch)
-	return Success; /* Succeed if property does not exist */
-
-    if (rc == Success) {
-	if (pWin->optional->userProps == pProp) {
-	    /* Takes care of head */
-            if (!(pWin->optional->userProps = pProp->next))
-		CheckWindowOptionalNeed (pWin);
-	} else {
-	    /* Need to traverse to find the previous element */
-	    prevProp = pWin->optional->userProps;
-	    while (prevProp->next != pProp)
-		prevProp = prevProp->next;
-	    prevProp->next = pProp->next;
-	}
-
-	deliverPropertyNotifyEvent(pWin, PropertyDelete, pProp->propertyName);
-	dixFreePrivates(pProp->devPrivates);
-	xfree(pProp->data);
-        xfree(pProp);
-    }
-    return rc;
-}
-
-void
-DeleteAllWindowProperties(WindowPtr pWin)
-{
-    PropertyPtr pProp, pNextProp;
-
-    pProp = wUserProps (pWin);
-    while (pProp)
-    {
-	deliverPropertyNotifyEvent(pWin, PropertyDelete, pProp->propertyName);
-	pNextProp = pProp->next;
-	dixFreePrivates(pProp->devPrivates);
-        xfree(pProp->data);
-        xfree(pProp);
-	pProp = pNextProp;
-    }
-}
-
-static int
-NullPropertyReply(
-    ClientPtr client,
-    ATOM propertyType,
-    int format,
-    xGetPropertyReply *reply)
-{
-    reply->nItems = 0;
-    reply->length = 0;
-    reply->bytesAfter = 0;
-    reply->propertyType = propertyType;
-    reply->format = format;
-    WriteReplyToClient(client, sizeof(xGenericReply), reply);
-    return(client->noClientException);
-}
-
-/*****************
- * GetProperty
- *    If type Any is specified, returns the property from the specified
- *    window regardless of its type.  If a type is specified, returns the
- *    property only if its type equals the specified type.
- *    If delete is True and a property is returned, the property is also
- *    deleted from the window and a PropertyNotify event is generated on the
- *    window.
- *****************/
-
-int
-ProcGetProperty(ClientPtr client)
-{
-    PropertyPtr pProp, prevProp;
-    unsigned long n, len, ind;
-    int rc;
-    WindowPtr pWin;
-    xGetPropertyReply reply;
-    Mask win_mode = DixGetPropAccess, prop_mode = DixReadAccess;
-    REQUEST(xGetPropertyReq);
-
-    REQUEST_SIZE_MATCH(xGetPropertyReq);
-    if (stuff->delete) {
-	UpdateCurrentTime();
-	win_mode |= DixSetPropAccess;
-	prop_mode |= DixDestroyAccess;
-    }
-    rc = dixLookupWindow(&pWin, stuff->window, client, win_mode);
-    if (rc != Success)
-	return (rc == BadMatch) ? BadWindow : rc;
-
-    if (!ValidAtom(stuff->property))
-    {
-	client->errorValue = stuff->property;
-	return(BadAtom);
-    }
-    if ((stuff->delete != xTrue) && (stuff->delete != xFalse))
-    {
-	client->errorValue = stuff->delete;
-	return(BadValue);
-    }
-    if ((stuff->type != AnyPropertyType) && !ValidAtom(stuff->type))
-    {
-	client->errorValue = stuff->type;
-	return(BadAtom);
-    }
-
-    memset(&reply, 0, sizeof(xGetPropertyReply));
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-
-    rc = dixLookupProperty(&pProp, pWin, stuff->property, client, prop_mode);
-    if (rc == BadMatch)
-	return NullPropertyReply(client, None, 0, &reply);
-    else if (rc != Success)
-	return rc;
-
-    /* If the request type and actual type don't match. Return the
-    property information, but not the data. */
-
-    if (((stuff->type != pProp->type) &&
-	 (stuff->type != AnyPropertyType))
-       )
-    {
-	reply.bytesAfter = pProp->size;
-	reply.format = pProp->format;
-	reply.length = 0;
-	reply.nItems = 0;
-	reply.propertyType = pProp->type;
-	WriteReplyToClient(client, sizeof(xGenericReply), &reply);
-	return(Success);
-    }
-
-/*
- *  Return type, format, value to client
- */
-    n = (pProp->format/8) * pProp->size; /* size (bytes) of prop */
-    ind = stuff->longOffset << 2;        
-
-   /* If longOffset is invalid such that it causes "len" to
-	    be negative, it's a value error. */
-
-    if (n < ind)
-    {
-	client->errorValue = stuff->longOffset;
-	return BadValue;
-    }
-
-    len = min(n - ind, 4 * stuff->longLength);
-
-    reply.bytesAfter = n - (ind + len);
-    reply.format = pProp->format;
-    reply.length = bytes_to_int32(len);
-    reply.nItems = len / (pProp->format / 8 );
-    reply.propertyType = pProp->type;
-
-    if (stuff->delete && (reply.bytesAfter == 0))
-	deliverPropertyNotifyEvent(pWin, PropertyDelete, pProp->propertyName);
-
-    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 (pWin->optional->userProps == pProp) {
-	    /* Takes care of head */
-            if (!(pWin->optional->userProps = pProp->next))
-		CheckWindowOptionalNeed (pWin);
-	} else {
-	    /* Need to traverse to find the previous element */
-	    prevProp = pWin->optional->userProps;
-	    while (prevProp->next != pProp)
-		prevProp = prevProp->next;
-	    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, realProp;
-    REQUEST(xResourceReq);
-
-    REQUEST_SIZE_MATCH(xResourceReq);
-    rc = dixLookupWindow(&pWin, stuff->id, client, DixListPropAccess);
-    if (rc != Success)
-        return rc;
-
-    for (pProp = wUserProps(pWin); pProp; pProp = pProp->next)
-	numProps++;
-
-    if (numProps && !(pAtoms = xalloc(numProps * sizeof(Atom))))
-	return BadAlloc;
-
-    numProps = 0;
-    temppAtoms = pAtoms;
-    for (pProp = wUserProps(pWin); pProp; pProp = pProp->next) {
-	realProp = pProp;
-	rc = XaceHookPropertyAccess(client, pWin, &realProp, DixGetAttrAccess);
-	if (rc == Success && realProp == pProp) {
-	    *temppAtoms++ = pProp->propertyName;
-	    numProps++;
-	}
-    }
-
-    xlpr.type = X_Reply;
-    xlpr.nProperties = numProps;
-    xlpr.length = bytes_to_int32(numProps * sizeof(Atom));
-    xlpr.sequenceNumber = client->sequence;
-    WriteReplyToClient(client, sizeof(xGenericReply), &xlpr);
-    if (numProps)
-    {
-        client->pSwapReplyFunc = (ReplySwapPtr)Swap32Write;
-        WriteSwappedDataToClient(client, numProps * sizeof(Atom), pAtoms);
-    }
-    xfree(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, DixSetPropAccess);
-    if (result != Success)
-        return result;
-    if (!ValidAtom(stuff->property))
-    {
-	client->errorValue = stuff->property;
-	return (BadAtom);
-    }
-
-    result = DeleteProperty(client, pWin, stuff->property);
-    if (client->noClientException != Success)
-	return(client->noClientException);
-    else
-	return(result);
-}
+/***********************************************************

+

+Copyright 1987, 1998  The Open Group

+

+Permission to use, copy, modify, distribute, and sell this software and its

+documentation for any purpose is hereby granted without fee, provided that

+the above copyright notice appear in all copies and that both that

+copyright notice and this permission notice appear in supporting

+documentation.

+

+The above copyright notice and this permission notice 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

+OPEN GROUP 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.

+

+Except as contained in this notice, the name of The Open Group shall not be

+used in advertising or otherwise to promote the sale, use or other dealings

+in this Software without prior written authorization from The Open Group.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xproto.h>

+#include "windowstr.h"

+#include "propertyst.h"

+#include "dixstruct.h"

+#include "dispatch.h"

+#include "swaprep.h"

+#include "xace.h"

+

+/*****************************************************************

+ * Property Stuff

+ *

+ *    dixLookupProperty, dixChangeProperty, DeleteProperty

+ *

+ *   Properties belong to windows.  The list of properties should not be

+ *   traversed directly.  Instead, use the three functions listed above.

+ *

+ *****************************************************************/

+

+#ifdef notdef

+static void

+PrintPropertys(WindowPtr pWin)

+{

+    PropertyPtr pProp;

+    int j;

+

+    pProp = pWin->userProps;

+    while (pProp)

+    {

+        ErrorF("[dix] %x %x\n", pProp->propertyName, pProp->type);

+        ErrorF("[dix] property format: %d\n", pProp->format);

+        ErrorF("[dix] property data: \n");

+        for (j=0; j<(pProp->format/8)*pProp->size; j++)

+           ErrorF("[dix] %c\n", pProp->data[j]);

+        pProp = pProp->next;

+    }

+}

+#endif

+

+int

+dixLookupProperty(PropertyPtr *result, WindowPtr pWin, Atom propertyName,

+		  ClientPtr client, Mask access_mode)

+{

+    PropertyPtr pProp;

+    int rc = BadMatch;

+    client->errorValue = propertyName;

+

+    for (pProp = wUserProps(pWin); pProp; pProp = pProp->next)

+	if (pProp->propertyName == propertyName)

+	    break;

+

+    if (pProp)

+	rc = XaceHookPropertyAccess(client, pWin, &pProp, access_mode);

+    *result = pProp;

+    return rc;

+}

+

+static void

+deliverPropertyNotifyEvent(WindowPtr pWin, int state, Atom atom)

+{

+    xEvent event;

+

+    memset(&event, 0, sizeof(xEvent));

+    event.u.u.type = PropertyNotify;

+    event.u.property.window = pWin->drawable.id;

+    event.u.property.state = state;

+    event.u.property.atom = atom;

+    event.u.property.time = currentTime.milliseconds;

+    DeliverEvents(pWin, &event, 1, (WindowPtr)NULL);

+}

+

+int

+ProcRotateProperties(ClientPtr client)

+{

+    int     i, j, delta, rc;

+    REQUEST(xRotatePropertiesReq);

+    WindowPtr pWin;

+    Atom * atoms;

+    PropertyPtr * props;               /* array of pointer */

+    PropertyPtr pProp, saved;

+

+    REQUEST_FIXED_SIZE(xRotatePropertiesReq, stuff->nAtoms << 2);

+    UpdateCurrentTime();

+    rc = dixLookupWindow(&pWin, stuff->window, client, DixSetPropAccess);

+    if (rc != Success || stuff->nAtoms <= 0)

+        return rc;

+

+    atoms = (Atom *) & stuff[1];

+    props = malloc(stuff->nAtoms * sizeof(PropertyPtr));

+    saved = malloc(stuff->nAtoms * sizeof(PropertyRec));

+    if (!props || !saved) {

+	rc = BadAlloc;

+	goto out;

+    }

+

+    for (i = 0; i < stuff->nAtoms; i++)

+    {

+        if (!ValidAtom(atoms[i])) {

+	    rc = BadAtom;

+	    client->errorValue = atoms[i];

+	    goto out;

+        }

+        for (j = i + 1; j < stuff->nAtoms; j++)

+            if (atoms[j] == atoms[i])

+            {

+		rc = BadMatch;

+		goto out;

+            }

+

+	rc = dixLookupProperty(&pProp, pWin, atoms[i], client,

+			       DixReadAccess|DixWriteAccess);

+	if (rc != Success)

+	    goto out;

+

+        props[i] = pProp;

+	saved[i] = *pProp;

+    }

+    delta = stuff->nPositions;

+

+    /* If the rotation is a complete 360 degrees, then moving the properties

+	around and generating PropertyNotify events should be skipped. */

+

+    if (abs(delta) % stuff->nAtoms)

+    {

+	while (delta < 0)                  /* faster if abs value is small */

+            delta += stuff->nAtoms;

+    	for (i = 0; i < stuff->nAtoms; i++)

+ 	{

+	    j = (i + delta) % stuff->nAtoms;

+	    deliverPropertyNotifyEvent(pWin, PropertyNewValue, atoms[i]);

+

+	    /* Preserve name and devPrivates */

+	    props[j]->type = saved[i].type;

+	    props[j]->format = saved[i].format;

+	    props[j]->size = saved[i].size;

+	    props[j]->data = saved[i].data;

+	}

+    }

+out:

+    free(saved);

+    free(props);

+    return rc;

+}

+

+int 

+ProcChangeProperty(ClientPtr client)

+{	      

+    WindowPtr pWin;

+    char format, mode;

+    unsigned long len;

+    int sizeInBytes, totalSize, err;

+    REQUEST(xChangePropertyReq);

+

+    REQUEST_AT_LEAST_SIZE(xChangePropertyReq);

+    UpdateCurrentTime();

+    format = stuff->format;

+    mode = stuff->mode;

+    if ((mode != PropModeReplace) && (mode != PropModeAppend) &&

+	(mode != PropModePrepend))

+    {

+	client->errorValue = mode;

+	return BadValue;

+    }

+    if ((format != 8) && (format != 16) && (format != 32))

+    {

+	client->errorValue = format;

+        return BadValue;

+    }

+    len = stuff->nUnits;

+    if (len > bytes_to_int32(0xffffffff - sizeof(xChangePropertyReq)))

+	return BadLength;

+    sizeInBytes = format>>3;

+    totalSize = len * sizeInBytes;

+    REQUEST_FIXED_SIZE(xChangePropertyReq, totalSize);

+

+    err = dixLookupWindow(&pWin, stuff->window, client, DixSetPropAccess);

+    if (err != Success)

+	return err;

+    if (!ValidAtom(stuff->property))

+    {

+	client->errorValue = stuff->property;

+	return(BadAtom);

+    }

+    if (!ValidAtom(stuff->type))

+    {

+	client->errorValue = stuff->type;

+	return(BadAtom);

+    }

+

+    err = dixChangeWindowProperty(client, pWin, stuff->property, stuff->type,

+				  (int)format, (int)mode, len, &stuff[1],

+				  TRUE);

+    if (err != Success)

+	return err;

+    else

+	return Success;

+}

+

+int

+dixChangeWindowProperty(ClientPtr pClient, WindowPtr pWin, Atom property,

+			Atom type, int format, int mode, unsigned long len,

+			pointer value, Bool sendevent)

+{

+    PropertyPtr pProp;

+    PropertyRec savedProp;

+    int sizeInBytes, totalSize, rc;

+    unsigned char *data;

+    Mask access_mode;

+

+    sizeInBytes = format>>3;

+    totalSize = len * sizeInBytes;

+    access_mode = (mode == PropModeReplace) ? DixWriteAccess : DixBlendAccess;

+

+    /* first see if property already exists */

+    rc = dixLookupProperty(&pProp, pWin, property, pClient, access_mode);

+

+    if (rc == BadMatch)   /* just add to list */

+    {

+	if (!pWin->optional && !MakeWindowOptional (pWin))

+	    return(BadAlloc);

+        pProp = malloc(sizeof(PropertyRec));

+	if (!pProp)

+	    return(BadAlloc);

+        data = malloc(totalSize);

+	if (!data && len)

+	{

+	    free(pProp);

+	    return(BadAlloc);

+	}

+        memcpy(data, value, totalSize);

+        pProp->propertyName = property;

+        pProp->type = type;

+        pProp->format = format;

+        pProp->data = data;

+	pProp->size = len;

+	pProp->devPrivates = NULL;

+	rc = XaceHookPropertyAccess(pClient, pWin, &pProp,

+				    DixCreateAccess|DixWriteAccess);

+	if (rc != Success) {

+	    free(data);

+	    free(pProp);

+	    pClient->errorValue = property;

+	    return rc;

+	}

+        pProp->next = pWin->optional->userProps;

+        pWin->optional->userProps = pProp;

+    }

+    else if (rc == Success)

+    {

+	/* To append or prepend to a property the request format and type

+		must match those of the already defined property.  The

+		existing format and type are irrelevant when using the mode

+		"PropModeReplace" since they will be written over. */

+

+        if ((format != pProp->format) && (mode != PropModeReplace))

+	    return(BadMatch);

+        if ((pProp->type != type) && (mode != PropModeReplace))

+            return(BadMatch);

+

+	/* save the old values for later */

+	savedProp = *pProp;

+

+        if (mode == PropModeReplace)

+        {

+	    data = malloc(totalSize);

+	    if (!data && len)

+		return(BadAlloc);

+	    memcpy(data, value, totalSize);

+	    pProp->data = data;

+	    pProp->size = len;

+    	    pProp->type = type;

+	    pProp->format = format;

+	}

+	else if (len == 0)

+	{

+	    /* do nothing */

+	}

+        else if (mode == PropModeAppend)

+        {

+	    data = malloc((pProp->size + len) * sizeInBytes);

+	    if (!data)

+		return(BadAlloc);

+	    memcpy(data, pProp->data, pProp->size * sizeInBytes);

+	    memcpy(data + pProp->size * sizeInBytes, value, totalSize);

+            pProp->data = data;

+            pProp->size += len;

+	}

+        else if (mode == PropModePrepend)

+        {

+            data = malloc(sizeInBytes * (len + pProp->size));

+	    if (!data)

+		return(BadAlloc);

+            memcpy(data + totalSize, pProp->data, pProp->size * sizeInBytes);

+            memcpy(data, value, totalSize);

+            pProp->data = data;

+            pProp->size += len;

+	}

+

+	/* Allow security modules to check the new content */

+	access_mode |= DixPostAccess;

+	rc = XaceHookPropertyAccess(pClient, pWin, &pProp, access_mode);

+	if (rc == Success)

+	{

+	    if (savedProp.data != pProp->data)

+		free(savedProp.data);

+	}

+	else

+	{

+	    if (savedProp.data != pProp->data)

+		free(pProp->data);

+	    *pProp = savedProp;

+	    return rc;

+	}

+    }

+    else

+	return rc;

+

+    if (sendevent)

+	deliverPropertyNotifyEvent(pWin, PropertyNewValue, pProp->propertyName);

+

+    return(Success);

+}

+

+int

+ChangeWindowProperty(WindowPtr pWin, Atom property, Atom type, int format, 

+		     int mode, unsigned long len, pointer value, 

+		     Bool sendevent)

+{

+    return dixChangeWindowProperty(serverClient, pWin, property, type, format,

+				   mode, len, value, sendevent);

+}

+

+int

+DeleteProperty(ClientPtr client, WindowPtr pWin, Atom propName)

+{

+    PropertyPtr pProp, prevProp;

+    int rc;

+

+    rc = dixLookupProperty(&pProp, pWin, propName, client, DixDestroyAccess);

+    if (rc == BadMatch)

+	return Success; /* Succeed if property does not exist */

+

+    if (rc == Success) {

+	if (pWin->optional->userProps == pProp) {

+	    /* Takes care of head */

+            if (!(pWin->optional->userProps = pProp->next))

+		CheckWindowOptionalNeed (pWin);

+	} else {

+	    /* Need to traverse to find the previous element */

+	    prevProp = pWin->optional->userProps;

+	    while (prevProp->next != pProp)

+		prevProp = prevProp->next;

+	    prevProp->next = pProp->next;

+	}

+

+	deliverPropertyNotifyEvent(pWin, PropertyDelete, pProp->propertyName);

+	dixFreePrivates(pProp->devPrivates);

+	free(pProp->data);

+        free(pProp);

+    }

+    return rc;

+}

+

+void

+DeleteAllWindowProperties(WindowPtr pWin)

+{

+    PropertyPtr pProp, pNextProp;

+

+    pProp = wUserProps (pWin);

+    while (pProp)

+    {

+	deliverPropertyNotifyEvent(pWin, PropertyDelete, pProp->propertyName);

+	pNextProp = pProp->next;

+	dixFreePrivates(pProp->devPrivates);

+        free(pProp->data);

+        free(pProp);

+	pProp = pNextProp;

+    }

+}

+

+static int

+NullPropertyReply(

+    ClientPtr client,

+    ATOM propertyType,

+    int format,

+    xGetPropertyReply *reply)

+{

+    reply->nItems = 0;

+    reply->length = 0;

+    reply->bytesAfter = 0;

+    reply->propertyType = propertyType;

+    reply->format = format;

+    WriteReplyToClient(client, sizeof(xGenericReply), reply);

+    return Success;

+}

+

+/*****************

+ * GetProperty

+ *    If type Any is specified, returns the property from the specified

+ *    window regardless of its type.  If a type is specified, returns the

+ *    property only if its type equals the specified type.

+ *    If delete is True and a property is returned, the property is also

+ *    deleted from the window and a PropertyNotify event is generated on the

+ *    window.

+ *****************/

+

+int

+ProcGetProperty(ClientPtr client)

+{

+    PropertyPtr pProp, prevProp;

+    unsigned long n, len, ind;

+    int rc;

+    WindowPtr pWin;

+    xGetPropertyReply reply;

+    Mask win_mode = DixGetPropAccess, prop_mode = DixReadAccess;

+    REQUEST(xGetPropertyReq);

+

+    REQUEST_SIZE_MATCH(xGetPropertyReq);

+    if (stuff->delete) {

+	UpdateCurrentTime();

+	win_mode |= DixSetPropAccess;

+	prop_mode |= DixDestroyAccess;

+    }

+    rc = dixLookupWindow(&pWin, stuff->window, client, win_mode);

+    if (rc != Success)

+	return (rc == BadMatch) ? BadWindow : rc;

+

+    if (!ValidAtom(stuff->property))

+    {

+	client->errorValue = stuff->property;

+	return(BadAtom);

+    }

+    if ((stuff->delete != xTrue) && (stuff->delete != xFalse))

+    {

+	client->errorValue = stuff->delete;

+	return(BadValue);

+    }

+    if ((stuff->type != AnyPropertyType) && !ValidAtom(stuff->type))

+    {

+	client->errorValue = stuff->type;

+	return(BadAtom);

+    }

+

+    memset(&reply, 0, sizeof(xGetPropertyReply));

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+

+    rc = dixLookupProperty(&pProp, pWin, stuff->property, client, prop_mode);

+    if (rc == BadMatch)

+	return NullPropertyReply(client, None, 0, &reply);

+    else if (rc != Success)

+	return rc;

+

+    /* If the request type and actual type don't match. Return the

+    property information, but not the data. */

+

+    if (((stuff->type != pProp->type) &&

+	 (stuff->type != AnyPropertyType))

+       )

+    {

+	reply.bytesAfter = pProp->size;

+	reply.format = pProp->format;

+	reply.length = 0;

+	reply.nItems = 0;

+	reply.propertyType = pProp->type;

+	WriteReplyToClient(client, sizeof(xGenericReply), &reply);

+	return(Success);

+    }

+

+/*

+ *  Return type, format, value to client

+ */

+    n = (pProp->format/8) * pProp->size; /* size (bytes) of prop */

+    ind = stuff->longOffset << 2;        

+

+   /* If longOffset is invalid such that it causes "len" to

+	    be negative, it's a value error. */

+

+    if (n < ind)

+    {

+	client->errorValue = stuff->longOffset;

+	return BadValue;

+    }

+

+    len = min(n - ind, 4 * stuff->longLength);

+

+    reply.bytesAfter = n - (ind + len);

+    reply.format = pProp->format;

+    reply.length = bytes_to_int32(len);

+    reply.nItems = len / (pProp->format / 8 );

+    reply.propertyType = pProp->type;

+

+    if (stuff->delete && (reply.bytesAfter == 0))

+	deliverPropertyNotifyEvent(pWin, PropertyDelete, pProp->propertyName);

+

+    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 (pWin->optional->userProps == pProp) {

+	    /* Takes care of head */

+            if (!(pWin->optional->userProps = pProp->next))

+		CheckWindowOptionalNeed (pWin);

+	} else {

+	    /* Need to traverse to find the previous element */

+	    prevProp = pWin->optional->userProps;

+	    while (prevProp->next != pProp)

+		prevProp = prevProp->next;

+	    prevProp->next = pProp->next;

+	}

+

+	dixFreePrivates(pProp->devPrivates);

+	free(pProp->data);

+	free(pProp);

+    }

+    return Success;

+}

+

+int

+ProcListProperties(ClientPtr client)

+{

+    Atom *pAtoms = NULL, *temppAtoms;

+    xListPropertiesReply xlpr;

+    int	rc, numProps = 0;

+    WindowPtr pWin;

+    PropertyPtr pProp, realProp;

+    REQUEST(xResourceReq);

+

+    REQUEST_SIZE_MATCH(xResourceReq);

+    rc = dixLookupWindow(&pWin, stuff->id, client, DixListPropAccess);

+    if (rc != Success)

+        return rc;

+

+    for (pProp = wUserProps(pWin); pProp; pProp = pProp->next)

+	numProps++;

+

+    if (numProps && !(pAtoms = malloc(numProps * sizeof(Atom))))

+	return BadAlloc;

+

+    numProps = 0;

+    temppAtoms = pAtoms;

+    for (pProp = wUserProps(pWin); pProp; pProp = pProp->next) {

+	realProp = pProp;

+	rc = XaceHookPropertyAccess(client, pWin, &realProp, DixGetAttrAccess);

+	if (rc == Success && realProp == pProp) {

+	    *temppAtoms++ = pProp->propertyName;

+	    numProps++;

+	}

+    }

+

+    xlpr.type = X_Reply;

+    xlpr.nProperties = numProps;

+    xlpr.length = bytes_to_int32(numProps * sizeof(Atom));

+    xlpr.sequenceNumber = client->sequence;

+    WriteReplyToClient(client, sizeof(xGenericReply), &xlpr);

+    if (numProps)

+    {

+        client->pSwapReplyFunc = (ReplySwapPtr)Swap32Write;

+        WriteSwappedDataToClient(client, numProps * sizeof(Atom), pAtoms);

+    }

+    free(pAtoms);

+    return Success;

+}

+

+int 

+ProcDeleteProperty(ClientPtr client)

+{

+    WindowPtr pWin;

+    REQUEST(xDeletePropertyReq);

+    int result;

+              

+    REQUEST_SIZE_MATCH(xDeletePropertyReq);

+    UpdateCurrentTime();

+    result = dixLookupWindow(&pWin, stuff->window, client, DixSetPropAccess);

+    if (result != Success)

+        return result;

+    if (!ValidAtom(stuff->property))

+    {

+	client->errorValue = stuff->property;

+	return (BadAtom);

+    }

+

+    return DeleteProperty(client, pWin, stuff->property);

+}