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diff --git a/xorg-server/Xi/grabdev.c b/xorg-server/Xi/grabdev.c
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+/************************************************************
+
+Copyright 1989, 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 1989 by Hewlett-Packard Company, Palo Alto, California.
+
+ 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 Hewlett-Packard not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+HEWLETT-PACKARD 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.
+
+********************************************************/
+
+/***********************************************************************
+ *
+ * Extension function to grab an extension device.
+ *
+ */
+
+#define NEED_EVENTS
+#define NEED_REPLIES
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "inputstr.h" /* DeviceIntPtr */
+#include "windowstr.h" /* window structure */
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include "exglobals.h"
+#include "dixevents.h" /* GrabDevice */
+
+#include "grabdev.h"
+
+extern XExtEventInfo EventInfo[];
+extern int ExtEventIndex;
+
+/***********************************************************************
+ *
+ * Swap the request if the requestor has a different byte order than us.
+ *
+ */
+
+int
+SProcXGrabDevice(ClientPtr client)
+{
+ char n;
+
+ REQUEST(xGrabDeviceReq);
+ swaps(&stuff->length, n);
+ REQUEST_AT_LEAST_SIZE(xGrabDeviceReq);
+ swapl(&stuff->grabWindow, n);
+ swapl(&stuff->time, n);
+ swaps(&stuff->event_count, n);
+
+ if (stuff->length != (sizeof(xGrabDeviceReq) >> 2) + stuff->event_count)
+ return BadLength;
+
+ SwapLongs((CARD32 *) (&stuff[1]), stuff->event_count);
+
+ return (ProcXGrabDevice(client));
+}
+
+/***********************************************************************
+ *
+ * Grab an extension device.
+ *
+ */
+
+int
+ProcXGrabDevice(ClientPtr client)
+{
+ int rc;
+ xGrabDeviceReply rep;
+ DeviceIntPtr dev;
+ struct tmask tmp[EMASKSIZE];
+
+ REQUEST(xGrabDeviceReq);
+ REQUEST_AT_LEAST_SIZE(xGrabDeviceReq);
+
+ if (stuff->length != (sizeof(xGrabDeviceReq) >> 2) + stuff->event_count)
+ return BadLength;
+
+ rep.repType = X_Reply;
+ rep.RepType = X_GrabDevice;
+ rep.sequenceNumber = client->sequence;
+ rep.length = 0;
+
+ rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
+ if (rc != Success)
+ return rc;
+
+ if ((rc = CreateMaskFromList(client, (XEventClass *) & stuff[1],
+ stuff->event_count, tmp, dev,
+ X_GrabDevice)) != Success)
+ return rc;
+
+ rc = GrabDevice(client, dev, stuff->this_device_mode,
+ stuff->other_devices_mode, stuff->grabWindow,
+ stuff->ownerEvents, stuff->time,
+ tmp[stuff->deviceid].mask, &rep.status);
+
+ if (rc != Success)
+ return rc;
+
+ WriteReplyToClient(client, sizeof(xGrabDeviceReply), &rep);
+ return Success;
+}
+
+/***********************************************************************
+ *
+ * This procedure creates an event mask from a list of XEventClasses.
+ *
+ */
+
+int
+CreateMaskFromList(ClientPtr client, XEventClass * list, int count,
+ struct tmask *mask, DeviceIntPtr dev, int req)
+{
+ int rc, i, j;
+ int device;
+ DeviceIntPtr tdev;
+
+ for (i = 0; i < EMASKSIZE; i++) {
+ mask[i].mask = 0;
+ mask[i].dev = NULL;
+ }
+
+ for (i = 0; i < count; i++, list++) {
+ device = *list >> 8;
+ if (device > 255)
+ return BadClass;
+
+ rc = dixLookupDevice(&tdev, device, client, DixReadAccess);
+ if (rc != BadDevice && rc != Success)
+ return rc;
+ if (rc == BadDevice || (dev != NULL && tdev != dev))
+ return BadClass;
+
+ for (j = 0; j < ExtEventIndex; j++)
+ if (EventInfo[j].type == (*list & 0xff)) {
+ mask[device].mask |= EventInfo[j].mask;
+ mask[device].dev = (Pointer) tdev;
+ break;
+ }
+ }
+ return Success;
+}
+
+/***********************************************************************
+ *
+ * This procedure writes the reply for the XGrabDevice function,
+ * if the client and server have a different byte ordering.
+ *
+ */
+
+void
+SRepXGrabDevice(ClientPtr client, int size, xGrabDeviceReply * rep)
+{
+ char n;
+
+ swaps(&rep->sequenceNumber, n);
+ swapl(&rep->length, n);
+ WriteToClient(client, size, (char *)rep);
+}