xserver git update 15/5/2010

1 files changed, 434 insertions, 434 deletions

diff --git a/xorg-server/Xi/listdev.c b/xorg-server/Xi/listdev.c
index 98ef7aa43..2015f9cdd 100644
--- a/xorg-server/Xi/listdev.c
+++ b/xorg-server/Xi/listdev.c
@@ -1,434 +1,434 @@
-/************************************************************
-
-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 list the available input devices.
- *
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>	/* for inputstr.h    */
-#include <X11/Xproto.h>	/* Request macro     */
-#include "inputstr.h"	/* DeviceIntPtr      */
-#include <X11/extensions/XI.h>
-#include <X11/extensions/XIproto.h>
-#include "XIstubs.h"
-#include "extnsionst.h"
-#include "exevents.h"
-#include "xace.h"
-#include "xkbsrv.h"
-#include "xkbstr.h"
-
-#include "listdev.h"
-
-
-/***********************************************************************
- *
- * This procedure lists the input devices available to the server.
- *
- */
-
-int
-SProcXListInputDevices(ClientPtr client)
-{
-    char n;
-
-    REQUEST(xListInputDevicesReq);
-    swaps(&stuff->length, n);
-    return (ProcXListInputDevices(client));
-}
-
-/***********************************************************************
- *
- * This procedure calculates the size of the information to be returned
- * for an input device.
- *
- */
-
-static void
-SizeDeviceInfo(DeviceIntPtr d, int *namesize, int *size)
-{
-    int chunks;
-
-    *namesize += 1;
-    if (d->name)
-	*namesize += strlen(d->name);
-    if (d->key != NULL)
-	*size += sizeof(xKeyInfo);
-    if (d->button != NULL)
-	*size += sizeof(xButtonInfo);
-    if (d->valuator != NULL) {
-	chunks = ((int)d->valuator->numAxes + 19) / VPC;
-	*size += (chunks * sizeof(xValuatorInfo) +
-		  d->valuator->numAxes * sizeof(xAxisInfo));
-    }
-}
-
-/***********************************************************************
- *
- * This procedure copies data to the DeviceInfo struct, swapping if necessary.
- *
- * We need the extra byte in the allocated buffer, because the trailing null
- * hammers one extra byte, which is overwritten by the next name except for
- * the last name copied.
- *
- */
-
-static void
-CopyDeviceName(char **namebuf, char *name)
-{
-    char *nameptr = (char *)*namebuf;
-
-    if (name) {
-	*nameptr++ = strlen(name);
-	strcpy(nameptr, name);
-	*namebuf += (strlen(name) + 1);
-    } else {
-	*nameptr++ = 0;
-	*namebuf += 1;
-    }
-}
-
-/***********************************************************************
- *
- * This procedure copies ButtonClass information, swapping if necessary.
- *
- */
-
-static void
-CopySwapButtonClass(ClientPtr client, ButtonClassPtr b, char **buf)
-{
-    char n;
-    xButtonInfoPtr b2;
-
-    b2 = (xButtonInfoPtr) * buf;
-    b2->class = ButtonClass;
-    b2->length = sizeof(xButtonInfo);
-    b2->num_buttons = b->numButtons;
-    if (client && client->swapped) {
-	swaps(&b2->num_buttons, n);	/* macro - braces are required */
-    }
-    *buf += sizeof(xButtonInfo);
-}
-
-/***********************************************************************
- *
- * This procedure copies data to the DeviceInfo struct, swapping if necessary.
- *
- */
-
-static void
-CopySwapDevice(ClientPtr client, DeviceIntPtr d, int num_classes,
-	       char **buf)
-{
-    char n;
-    xDeviceInfoPtr dev;
-
-    dev = (xDeviceInfoPtr) * buf;
-
-    dev->id = d->id;
-    dev->type = d->xinput_type;
-    dev->num_classes = num_classes;
-    if (IsMaster(d) && IsKeyboardDevice(d))
-	dev->use = IsXKeyboard;
-    else if (IsMaster(d) && IsPointerDevice(d))
-	dev->use = IsXPointer;
-    else if (d->key && d->kbdfeed)
-        dev->use = IsXExtensionKeyboard;
-    else if (d->valuator && d->button)
-        dev->use = IsXExtensionPointer;
-    else
-	dev->use = IsXExtensionDevice;
-
-    if (client->swapped) {
-	swapl(&dev->type, n);	/* macro - braces are required */
-    }
-    *buf += sizeof(xDeviceInfo);
-}
-
-/***********************************************************************
- *
- * This procedure copies KeyClass information, swapping if necessary.
- *
- */
-
-static void
-CopySwapKeyClass(ClientPtr client, KeyClassPtr k, char **buf)
-{
-    char n;
-    xKeyInfoPtr k2;
-
-    k2 = (xKeyInfoPtr) * buf;
-    k2->class = KeyClass;
-    k2->length = sizeof(xKeyInfo);
-    k2->min_keycode = k->xkbInfo->desc->min_key_code;
-    k2->max_keycode = k->xkbInfo->desc->max_key_code;
-    k2->num_keys = k2->max_keycode - k2->min_keycode + 1;
-    if (client && client->swapped) {
-	swaps(&k2->num_keys, n);
-    }
-    *buf += sizeof(xKeyInfo);
-}
-
-/***********************************************************************
- *
- * This procedure copies ValuatorClass information, swapping if necessary.
- *
- * Devices may have up to 255 valuators.  The length of a ValuatorClass is
- * defined to be sizeof(ValuatorClassInfo) + num_axes * sizeof (xAxisInfo).
- * The maximum length is therefore (8 + 255 * 12) = 3068.  However, the
- * length field is one byte.  If a device has more than 20 valuators, we
- * must therefore return multiple valuator classes to the client.
- *
- */
-
-static int
-CopySwapValuatorClass(ClientPtr client, ValuatorClassPtr v, char **buf)
-{
-    int i, j, axes, t_axes;
-    char n;
-    xValuatorInfoPtr v2;
-    AxisInfo *a;
-    xAxisInfoPtr a2;
-
-    for (i = 0, axes = v->numAxes; i < ((v->numAxes + 19) / VPC);
-	 i++, axes -= VPC) {
-	t_axes = axes < VPC ? axes : VPC;
-	if (t_axes < 0)
-	    t_axes = v->numAxes % VPC;
-	v2 = (xValuatorInfoPtr) * buf;
-	v2->class = ValuatorClass;
-	v2->length = sizeof(xValuatorInfo) + t_axes * sizeof(xAxisInfo);
-	v2->num_axes = t_axes;
-	v2->mode = v->mode & DeviceMode;
-	v2->motion_buffer_size = v->numMotionEvents;
-	if (client && client->swapped) {
-	    swapl(&v2->motion_buffer_size, n);
-	}
-	*buf += sizeof(xValuatorInfo);
-	a = v->axes + (VPC * i);
-	a2 = (xAxisInfoPtr) * buf;
-	for (j = 0; j < t_axes; j++) {
-	    a2->min_value = a->min_value;
-	    a2->max_value = a->max_value;
-	    a2->resolution = a->resolution;
-	    if (client && client->swapped) {
-		swapl(&a2->min_value, n);
-		swapl(&a2->max_value, n);
-		swapl(&a2->resolution, n);
-	    }
-	    a2++;
-	    a++;
-	    *buf += sizeof(xAxisInfo);
-	}
-    }
-    return (i);
-}
-
-static void
-CopySwapClasses(ClientPtr client, DeviceIntPtr dev, CARD8 *num_classes,
-                char** classbuf)
-{
-    if (dev->key != NULL) {
-	CopySwapKeyClass(client, dev->key, classbuf);
-	(*num_classes)++;
-    }
-    if (dev->button != NULL) {
-	CopySwapButtonClass(client, dev->button, classbuf);
-	(*num_classes)++;
-    }
-    if (dev->valuator != NULL) {
-	(*num_classes) +=
-	    CopySwapValuatorClass(client, dev->valuator, classbuf);
-    }
-}
-
-/***********************************************************************
- *
- * This procedure lists information to be returned for an input device.
- *
- */
-
-static void
-ListDeviceInfo(ClientPtr client, DeviceIntPtr d, xDeviceInfoPtr dev,
-	       char **devbuf, char **classbuf, char **namebuf)
-{
-    CopyDeviceName(namebuf, d->name);
-    CopySwapDevice(client, d, 0, devbuf);
-    CopySwapClasses(client, d, &dev->num_classes, classbuf);
-}
-
-/***********************************************************************
- *
- * This procedure checks if a device should be left off the list.
- *
- */
-
-static Bool
-ShouldSkipDevice(ClientPtr client, DeviceIntPtr d)
-{
-    /* don't send master devices other than VCP/VCK */
-    if (!IsMaster(d) || d == inputInfo.pointer || d == inputInfo.keyboard)
-    {
-        int rc = XaceHook(XACE_DEVICE_ACCESS, client, d, DixGetAttrAccess);
-        if (rc == Success)
-            return FALSE;
-    }
-    return TRUE;
-}
-
-
-/***********************************************************************
- *
- * This procedure lists the input devices available to the server.
- *
- * If this request is called by a client that has not issued a
- * GetExtensionVersion request with major/minor version set, we don't send the
- * complete device list. Instead, we only send the VCP, the VCK and floating
- * SDs. This resembles the setup found on XI 1.x machines.
- */
-
-int
-ProcXListInputDevices(ClientPtr client)
-{
-    xListInputDevicesReply rep;
-    int numdevs = 0;
-    int namesize = 1;	/* need 1 extra byte for strcpy */
-    int i = 0, size = 0;
-    int total_length;
-    char *devbuf, *classbuf, *namebuf, *savbuf;
-    Bool *skip;
-    xDeviceInfo *dev;
-    DeviceIntPtr d;
-
-    REQUEST_SIZE_MATCH(xListInputDevicesReq);
-
-    memset(&rep, 0, sizeof(xListInputDevicesReply));
-    rep.repType = X_Reply;
-    rep.RepType = X_ListInputDevices;
-    rep.length = 0;
-    rep.sequenceNumber = client->sequence;
-
-
-    AddOtherInputDevices();
-
-    /* allocate space for saving skip value */
-    skip = xcalloc(sizeof(Bool), inputInfo.numDevices);
-    if (!skip)
-        return BadAlloc;
-
-    /* figure out which devices to skip */
-    numdevs = 0;
-    for (d = inputInfo.devices; d; d = d->next, i++) {
-        skip[i] = ShouldSkipDevice(client, d);
-        if (skip[i])
-            continue;
-
-        SizeDeviceInfo(d, &namesize, &size);
-        numdevs++;
-    }
-
-    for (d = inputInfo.off_devices; d; d = d->next, i++) {
-        skip[i] = ShouldSkipDevice(client, d);
-        if (skip[i])
-            continue;
-
-        SizeDeviceInfo(d, &namesize, &size);
-        numdevs++;
-    }
-
-    /* allocate space for reply */
-    total_length = numdevs * sizeof(xDeviceInfo) + size + namesize;
-    devbuf = (char *)xcalloc(1, total_length);
-    classbuf = devbuf + (numdevs * sizeof(xDeviceInfo));
-    namebuf = classbuf + size;
-    savbuf = devbuf;
-
-    /* fill in and send reply */
-    i = 0;
-    dev = (xDeviceInfoPtr) devbuf;
-    for (d = inputInfo.devices; d; d = d->next, i++) {
-        if (skip[i])
-            continue;
-
-        ListDeviceInfo(client, d, dev++, &devbuf, &classbuf, &namebuf);
-    }
-
-    for (d = inputInfo.off_devices; d; d = d->next, i++) {
-        if (skip[i])
-            continue;
-
-        ListDeviceInfo(client, d, dev++, &devbuf, &classbuf, &namebuf);
-    }
-    rep.ndevices = numdevs;
-    rep.length = bytes_to_int32(total_length);
-    WriteReplyToClient(client, sizeof(xListInputDevicesReply), &rep);
-    WriteToClient(client, total_length, savbuf);
-    xfree(savbuf);
-    xfree(skip);
-    return Success;
-}
-
-/***********************************************************************
- *
- * This procedure writes the reply for the XListInputDevices function,
- * if the client and server have a different byte ordering.
- *
- */
-
-void
-SRepXListInputDevices(ClientPtr client, int size, xListInputDevicesReply * rep)
-{
-    char n;
-
-    swaps(&rep->sequenceNumber, n);
-    swapl(&rep->length, n);
-    WriteToClient(client, size, (char *)rep);
-}
+/************************************************************

+

+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 list the available input devices.

+ *

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>	/* for inputstr.h    */

+#include <X11/Xproto.h>	/* Request macro     */

+#include "inputstr.h"	/* DeviceIntPtr      */

+#include <X11/extensions/XI.h>

+#include <X11/extensions/XIproto.h>

+#include "XIstubs.h"

+#include "extnsionst.h"

+#include "exevents.h"

+#include "xace.h"

+#include "xkbsrv.h"

+#include "xkbstr.h"

+

+#include "listdev.h"

+

+

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

+ *

+ * This procedure lists the input devices available to the server.

+ *

+ */

+

+int

+SProcXListInputDevices(ClientPtr client)

+{

+    char n;

+

+    REQUEST(xListInputDevicesReq);

+    swaps(&stuff->length, n);

+    return (ProcXListInputDevices(client));

+}

+

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

+ *

+ * This procedure calculates the size of the information to be returned

+ * for an input device.

+ *

+ */

+

+static void

+SizeDeviceInfo(DeviceIntPtr d, int *namesize, int *size)

+{

+    int chunks;

+

+    *namesize += 1;

+    if (d->name)

+	*namesize += strlen(d->name);

+    if (d->key != NULL)

+	*size += sizeof(xKeyInfo);

+    if (d->button != NULL)

+	*size += sizeof(xButtonInfo);

+    if (d->valuator != NULL) {

+	chunks = ((int)d->valuator->numAxes + 19) / VPC;

+	*size += (chunks * sizeof(xValuatorInfo) +

+		  d->valuator->numAxes * sizeof(xAxisInfo));

+    }

+}

+

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

+ *

+ * This procedure copies data to the DeviceInfo struct, swapping if necessary.

+ *

+ * We need the extra byte in the allocated buffer, because the trailing null

+ * hammers one extra byte, which is overwritten by the next name except for

+ * the last name copied.

+ *

+ */

+

+static void

+CopyDeviceName(char **namebuf, char *name)

+{

+    char *nameptr = (char *)*namebuf;

+

+    if (name) {

+	*nameptr++ = strlen(name);

+	strcpy(nameptr, name);

+	*namebuf += (strlen(name) + 1);

+    } else {

+	*nameptr++ = 0;

+	*namebuf += 1;

+    }

+}

+

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

+ *

+ * This procedure copies ButtonClass information, swapping if necessary.

+ *

+ */

+

+static void

+CopySwapButtonClass(ClientPtr client, ButtonClassPtr b, char **buf)

+{

+    char n;

+    xButtonInfoPtr b2;

+

+    b2 = (xButtonInfoPtr) * buf;

+    b2->class = ButtonClass;

+    b2->length = sizeof(xButtonInfo);

+    b2->num_buttons = b->numButtons;

+    if (client && client->swapped) {

+	swaps(&b2->num_buttons, n);	/* macro - braces are required */

+    }

+    *buf += sizeof(xButtonInfo);

+}

+

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

+ *

+ * This procedure copies data to the DeviceInfo struct, swapping if necessary.

+ *

+ */

+

+static void

+CopySwapDevice(ClientPtr client, DeviceIntPtr d, int num_classes,

+	       char **buf)

+{

+    char n;

+    xDeviceInfoPtr dev;

+

+    dev = (xDeviceInfoPtr) * buf;

+

+    dev->id = d->id;

+    dev->type = d->xinput_type;

+    dev->num_classes = num_classes;

+    if (IsMaster(d) && IsKeyboardDevice(d))

+	dev->use = IsXKeyboard;

+    else if (IsMaster(d) && IsPointerDevice(d))

+	dev->use = IsXPointer;

+    else if (d->key && d->kbdfeed)

+        dev->use = IsXExtensionKeyboard;

+    else if (d->valuator && d->button)

+        dev->use = IsXExtensionPointer;

+    else

+	dev->use = IsXExtensionDevice;

+

+    if (client->swapped) {

+	swapl(&dev->type, n);	/* macro - braces are required */

+    }

+    *buf += sizeof(xDeviceInfo);

+}

+

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

+ *

+ * This procedure copies KeyClass information, swapping if necessary.

+ *

+ */

+

+static void

+CopySwapKeyClass(ClientPtr client, KeyClassPtr k, char **buf)

+{

+    char n;

+    xKeyInfoPtr k2;

+

+    k2 = (xKeyInfoPtr) * buf;

+    k2->class = KeyClass;

+    k2->length = sizeof(xKeyInfo);

+    k2->min_keycode = k->xkbInfo->desc->min_key_code;

+    k2->max_keycode = k->xkbInfo->desc->max_key_code;

+    k2->num_keys = k2->max_keycode - k2->min_keycode + 1;

+    if (client && client->swapped) {

+	swaps(&k2->num_keys, n);

+    }

+    *buf += sizeof(xKeyInfo);

+}

+

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

+ *

+ * This procedure copies ValuatorClass information, swapping if necessary.

+ *

+ * Devices may have up to 255 valuators.  The length of a ValuatorClass is

+ * defined to be sizeof(ValuatorClassInfo) + num_axes * sizeof (xAxisInfo).

+ * The maximum length is therefore (8 + 255 * 12) = 3068.  However, the

+ * length field is one byte.  If a device has more than 20 valuators, we

+ * must therefore return multiple valuator classes to the client.

+ *

+ */

+

+static int

+CopySwapValuatorClass(ClientPtr client, ValuatorClassPtr v, char **buf)

+{

+    int i, j, axes, t_axes;

+    char n;

+    xValuatorInfoPtr v2;

+    AxisInfo *a;

+    xAxisInfoPtr a2;

+

+    for (i = 0, axes = v->numAxes; i < ((v->numAxes + 19) / VPC);

+	 i++, axes -= VPC) {

+	t_axes = axes < VPC ? axes : VPC;

+	if (t_axes < 0)

+	    t_axes = v->numAxes % VPC;

+	v2 = (xValuatorInfoPtr) * buf;

+	v2->class = ValuatorClass;

+	v2->length = sizeof(xValuatorInfo) + t_axes * sizeof(xAxisInfo);

+	v2->num_axes = t_axes;

+	v2->mode = v->mode & DeviceMode;

+	v2->motion_buffer_size = v->numMotionEvents;

+	if (client && client->swapped) {

+	    swapl(&v2->motion_buffer_size, n);

+	}

+	*buf += sizeof(xValuatorInfo);

+	a = v->axes + (VPC * i);

+	a2 = (xAxisInfoPtr) * buf;

+	for (j = 0; j < t_axes; j++) {

+	    a2->min_value = a->min_value;

+	    a2->max_value = a->max_value;

+	    a2->resolution = a->resolution;

+	    if (client && client->swapped) {

+		swapl(&a2->min_value, n);

+		swapl(&a2->max_value, n);

+		swapl(&a2->resolution, n);

+	    }

+	    a2++;

+	    a++;

+	    *buf += sizeof(xAxisInfo);

+	}

+    }

+    return (i);

+}

+

+static void

+CopySwapClasses(ClientPtr client, DeviceIntPtr dev, CARD8 *num_classes,

+                char** classbuf)

+{

+    if (dev->key != NULL) {

+	CopySwapKeyClass(client, dev->key, classbuf);

+	(*num_classes)++;

+    }

+    if (dev->button != NULL) {

+	CopySwapButtonClass(client, dev->button, classbuf);

+	(*num_classes)++;

+    }

+    if (dev->valuator != NULL) {

+	(*num_classes) +=

+	    CopySwapValuatorClass(client, dev->valuator, classbuf);

+    }

+}

+

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

+ *

+ * This procedure lists information to be returned for an input device.

+ *

+ */

+

+static void

+ListDeviceInfo(ClientPtr client, DeviceIntPtr d, xDeviceInfoPtr dev,

+	       char **devbuf, char **classbuf, char **namebuf)

+{

+    CopyDeviceName(namebuf, d->name);

+    CopySwapDevice(client, d, 0, devbuf);

+    CopySwapClasses(client, d, &dev->num_classes, classbuf);

+}

+

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

+ *

+ * This procedure checks if a device should be left off the list.

+ *

+ */

+

+static Bool

+ShouldSkipDevice(ClientPtr client, DeviceIntPtr d)

+{

+    /* don't send master devices other than VCP/VCK */

+    if (!IsMaster(d) || d == inputInfo.pointer || d == inputInfo.keyboard)

+    {

+        int rc = XaceHook(XACE_DEVICE_ACCESS, client, d, DixGetAttrAccess);

+        if (rc == Success)

+            return FALSE;

+    }

+    return TRUE;

+}

+

+

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

+ *

+ * This procedure lists the input devices available to the server.

+ *

+ * If this request is called by a client that has not issued a

+ * GetExtensionVersion request with major/minor version set, we don't send the

+ * complete device list. Instead, we only send the VCP, the VCK and floating

+ * SDs. This resembles the setup found on XI 1.x machines.

+ */

+

+int

+ProcXListInputDevices(ClientPtr client)

+{

+    xListInputDevicesReply rep;

+    int numdevs = 0;

+    int namesize = 1;	/* need 1 extra byte for strcpy */

+    int i = 0, size = 0;

+    int total_length;

+    char *devbuf, *classbuf, *namebuf, *savbuf;

+    Bool *skip;

+    xDeviceInfo *dev;

+    DeviceIntPtr d;

+

+    REQUEST_SIZE_MATCH(xListInputDevicesReq);

+

+    memset(&rep, 0, sizeof(xListInputDevicesReply));

+    rep.repType = X_Reply;

+    rep.RepType = X_ListInputDevices;

+    rep.length = 0;

+    rep.sequenceNumber = client->sequence;

+

+

+    AddOtherInputDevices();

+

+    /* allocate space for saving skip value */

+    skip = calloc(sizeof(Bool), inputInfo.numDevices);

+    if (!skip)

+        return BadAlloc;

+

+    /* figure out which devices to skip */

+    numdevs = 0;

+    for (d = inputInfo.devices; d; d = d->next, i++) {

+        skip[i] = ShouldSkipDevice(client, d);

+        if (skip[i])

+            continue;

+

+        SizeDeviceInfo(d, &namesize, &size);

+        numdevs++;

+    }

+

+    for (d = inputInfo.off_devices; d; d = d->next, i++) {

+        skip[i] = ShouldSkipDevice(client, d);

+        if (skip[i])

+            continue;

+

+        SizeDeviceInfo(d, &namesize, &size);

+        numdevs++;

+    }

+

+    /* allocate space for reply */

+    total_length = numdevs * sizeof(xDeviceInfo) + size + namesize;

+    devbuf = (char *)calloc(1, total_length);

+    classbuf = devbuf + (numdevs * sizeof(xDeviceInfo));

+    namebuf = classbuf + size;

+    savbuf = devbuf;

+

+    /* fill in and send reply */

+    i = 0;

+    dev = (xDeviceInfoPtr) devbuf;

+    for (d = inputInfo.devices; d; d = d->next, i++) {

+        if (skip[i])

+            continue;

+

+        ListDeviceInfo(client, d, dev++, &devbuf, &classbuf, &namebuf);

+    }

+

+    for (d = inputInfo.off_devices; d; d = d->next, i++) {

+        if (skip[i])

+            continue;

+

+        ListDeviceInfo(client, d, dev++, &devbuf, &classbuf, &namebuf);

+    }

+    rep.ndevices = numdevs;

+    rep.length = bytes_to_int32(total_length);

+    WriteReplyToClient(client, sizeof(xListInputDevicesReply), &rep);

+    WriteToClient(client, total_length, savbuf);

+    free(savbuf);

+    free(skip);

+    return Success;

+}

+

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

+ *

+ * This procedure writes the reply for the XListInputDevices function,

+ * if the client and server have a different byte ordering.

+ *

+ */

+

+void

+SRepXListInputDevices(ClientPtr client, int size, xListInputDevicesReply * rep)

+{

+    char n;

+

+    swaps(&rep->sequenceNumber, n);

+    swapl(&rep->length, n);

+    WriteToClient(client, size, (char *)rep);

+}