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-rw-r--r--xorg-server/Xi/xiquerydevice.c1006
1 files changed, 503 insertions, 503 deletions
diff --git a/xorg-server/Xi/xiquerydevice.c b/xorg-server/Xi/xiquerydevice.c
index 4e1cae406..8b5421130 100644
--- a/xorg-server/Xi/xiquerydevice.c
+++ b/xorg-server/Xi/xiquerydevice.c
@@ -1,503 +1,503 @@
-/*
- * Copyright © 2009 Red Hat, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * Authors: Peter Hutterer
- *
- */
-
-/**
- * @file Protocol handling for the XIQueryDevice request/reply.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "inputstr.h"
-#include <X11/X.h>
-#include <X11/Xatom.h>
-#include <X11/extensions/XI2proto.h>
-#include "xkbstr.h"
-#include "xkbsrv.h"
-#include "xserver-properties.h"
-#include "exevents.h"
-#include "xace.h"
-
-#include "xiquerydevice.h"
-
-static Bool ShouldSkipDevice(ClientPtr client, int deviceid, DeviceIntPtr d);
-static int
-ListDeviceInfo(ClientPtr client, DeviceIntPtr dev, xXIDeviceInfo* info);
-static int SizeDeviceInfo(DeviceIntPtr dev);
-static void SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info);
-int
-SProcXIQueryDevice(ClientPtr client)
-{
- char n;
-
- REQUEST(xXIQueryDeviceReq);
-
- swaps(&stuff->length, n);
- swaps(&stuff->deviceid, n);
-
- return ProcXIQueryDevice(client);
-}
-
-int
-ProcXIQueryDevice(ClientPtr client)
-{
- xXIQueryDeviceReply rep;
- DeviceIntPtr dev = NULL;
- int rc = Success;
- int i = 0, len = 0;
- char *info, *ptr;
- Bool *skip = NULL;
-
- REQUEST(xXIQueryDeviceReq);
- REQUEST_SIZE_MATCH(xXIQueryDeviceReq);
-
- if (stuff->deviceid != XIAllDevices && stuff->deviceid != XIAllMasterDevices)
- {
- rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
- if (rc != Success)
- {
- client->errorValue = stuff->deviceid;
- return rc;
- }
- len += SizeDeviceInfo(dev);
- }
- else
- {
- skip = calloc(sizeof(Bool), inputInfo.numDevices);
- if (!skip)
- return BadAlloc;
-
- for (dev = inputInfo.devices; dev; dev = dev->next, i++)
- {
- skip[i] = ShouldSkipDevice(client, stuff->deviceid, dev);
- if (!skip[i])
- len += SizeDeviceInfo(dev);
- }
-
- for (dev = inputInfo.off_devices; dev; dev = dev->next, i++)
- {
- skip[i] = ShouldSkipDevice(client, stuff->deviceid, dev);
- if (!skip[i])
- len += SizeDeviceInfo(dev);
- }
- }
-
- info = calloc(1, len);
- if (!info)
- return BadAlloc;
-
- memset(&rep, 0, sizeof(xXIQueryDeviceReply));
- rep.repType = X_Reply;
- rep.RepType = X_XIQueryDevice;
- rep.sequenceNumber = client->sequence;
- rep.length = len/4;
- rep.num_devices = 0;
-
- ptr = info;
- if (dev)
- {
- len = ListDeviceInfo(client, dev, (xXIDeviceInfo*)info);
- if (client->swapped)
- SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
- info += len;
- rep.num_devices = 1;
- } else
- {
- i = 0;
- for (dev = inputInfo.devices; dev; dev = dev->next, i++)
- {
- if (!skip[i])
- {
- len = ListDeviceInfo(client, dev, (xXIDeviceInfo*)info);
- if (client->swapped)
- SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
- info += len;
- rep.num_devices++;
- }
- }
-
- for (dev = inputInfo.off_devices; dev; dev = dev->next, i++)
- {
- if (!skip[i])
- {
- len = ListDeviceInfo(client, dev, (xXIDeviceInfo*)info);
- if (client->swapped)
- SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
- info += len;
- rep.num_devices++;
- }
- }
- }
-
- WriteReplyToClient(client, sizeof(xXIQueryDeviceReply), &rep);
- WriteToClient(client, rep.length * 4, ptr);
- free(ptr);
- free(skip);
- return rc;
-}
-
-void
-SRepXIQueryDevice(ClientPtr client, int size, xXIQueryDeviceReply *rep)
-{
- char n;
-
- swaps(&rep->sequenceNumber, n);
- swapl(&rep->length, n);
- swaps(&rep->num_devices, n);
-
- /* Device info is already swapped, see ProcXIQueryDevice */
-
- WriteToClient(client, size, (char *)rep);
-}
-
-
-/**
- * @return Whether the device should be included in the returned list.
- */
-static Bool
-ShouldSkipDevice(ClientPtr client, int deviceid, DeviceIntPtr dev)
-{
- /* if all devices are not being queried, only master devices are */
- if (deviceid == XIAllDevices || IsMaster(dev))
- {
- int rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixGetAttrAccess);
- if (rc == Success)
- return FALSE;
- }
- return TRUE;
-}
-
-/**
- * @return The number of bytes needed to store this device's xXIDeviceInfo
- * (and its classes).
- */
-static int
-SizeDeviceInfo(DeviceIntPtr dev)
-{
- int len = sizeof(xXIDeviceInfo);
-
- /* 4-padded name */
- len += pad_to_int32(strlen(dev->name));
-
- return len + SizeDeviceClasses(dev);
-
-}
-
-/*
- * @return The number of bytes needed to store this device's classes.
- */
-int
-SizeDeviceClasses(DeviceIntPtr dev)
-{
- int len = 0;
-
- if (dev->button)
- {
- len += sizeof(xXIButtonInfo);
- len += dev->button->numButtons * sizeof(Atom);
- len += pad_to_int32(bits_to_bytes(dev->button->numButtons));
- }
-
- if (dev->key)
- {
- XkbDescPtr xkb = dev->key->xkbInfo->desc;
- len += sizeof(xXIKeyInfo);
- len += (xkb->max_key_code - xkb->min_key_code + 1) * sizeof(uint32_t);
- }
-
- if (dev->valuator)
- len += sizeof(xXIValuatorInfo) * dev->valuator->numAxes;
-
- return len;
-}
-
-
-/**
- * Write button information into info.
- * @return Number of bytes written into info.
- */
-int
-ListButtonInfo(DeviceIntPtr dev, xXIButtonInfo* info, Bool reportState)
-{
- unsigned char *bits;
- int mask_len;
- int i;
-
- if (!dev || !dev->button)
- return 0;
-
- mask_len = bytes_to_int32(bits_to_bytes(dev->button->numButtons));
-
- info->type = ButtonClass;
- info->num_buttons = dev->button->numButtons;
- info->length = bytes_to_int32(sizeof(xXIButtonInfo)) +
- info->num_buttons + mask_len;
- info->sourceid = dev->button->sourceid;
-
- bits = (unsigned char*)&info[1];
- memset(bits, 0, mask_len * 4);
-
- if (reportState)
- for (i = 0; i < dev->button->numButtons; i++)
- if (BitIsOn(dev->button->down, i))
- SetBit(bits, i);
-
- bits += mask_len * 4;
- memcpy(bits, dev->button->labels, dev->button->numButtons * sizeof(Atom));
-
- return info->length * 4;
-}
-
-static void
-SwapButtonInfo(DeviceIntPtr dev, xXIButtonInfo* info)
-{
- char n;
- Atom *btn;
- int i;
- swaps(&info->type, n);
- swaps(&info->length, n);
- swaps(&info->sourceid, n);
-
- for (i = 0, btn = (Atom*)&info[1]; i < info->num_buttons; i++, btn++)
- swaps(btn, n);
-
- swaps(&info->num_buttons, n);
-}
-
-/**
- * Write key information into info.
- * @return Number of bytes written into info.
- */
-int
-ListKeyInfo(DeviceIntPtr dev, xXIKeyInfo* info)
-{
- int i;
- XkbDescPtr xkb = dev->key->xkbInfo->desc;
- uint32_t *kc;
-
- info->type = KeyClass;
- info->num_keycodes = xkb->max_key_code - xkb->min_key_code + 1;
- info->length = sizeof(xXIKeyInfo)/4 + info->num_keycodes;
- info->sourceid = dev->key->sourceid;
-
- kc = (uint32_t*)&info[1];
- for (i = xkb->min_key_code; i <= xkb->max_key_code; i++, kc++)
- *kc = i;
-
- return info->length * 4;
-}
-
-static void
-SwapKeyInfo(DeviceIntPtr dev, xXIKeyInfo* info)
-{
- char n;
- uint32_t *key;
- int i;
- swaps(&info->type, n);
- swaps(&info->length, n);
- swaps(&info->sourceid, n);
-
- for (i = 0, key = (uint32_t*)&info[1]; i < info->num_keycodes; i++, key++)
- swapl(key, n);
-
- swaps(&info->num_keycodes, n);
-}
-
-/**
- * List axis information for the given axis.
- *
- * @return The number of bytes written into info.
- */
-int
-ListValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo* info, int axisnumber,
- Bool reportState)
-{
- ValuatorClassPtr v = dev->valuator;
-
- info->type = ValuatorClass;
- info->length = sizeof(xXIValuatorInfo)/4;
- info->label = v->axes[axisnumber].label;
- info->min.integral = v->axes[axisnumber].min_value;
- info->min.frac = 0;
- info->max.integral = v->axes[axisnumber].max_value;
- info->max.frac = 0;
- info->value.integral = (int)v->axisVal[axisnumber];
- info->value.frac = (int)(v->axisVal[axisnumber] * (1 << 16) * (1 << 16));
- info->resolution = v->axes[axisnumber].resolution;
- info->number = axisnumber;
- info->mode = valuator_get_mode(dev, axisnumber);
- info->sourceid = v->sourceid;
-
- if (!reportState)
- info->value = info->min;
-
- return info->length * 4;
-}
-
-static void
-SwapValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo* info)
-{
- char n;
- swaps(&info->type, n);
- swaps(&info->length, n);
- swapl(&info->label, n);
- swapl(&info->min.integral, n);
- swapl(&info->min.frac, n);
- swapl(&info->max.integral, n);
- swapl(&info->max.frac, n);
- swaps(&info->number, n);
- swaps(&info->sourceid, n);
-}
-
-int GetDeviceUse(DeviceIntPtr dev, uint16_t *attachment)
-{
- DeviceIntPtr master = dev->u.master;
- int use;
-
- if (IsMaster(dev))
- {
- DeviceIntPtr paired = GetPairedDevice(dev);
- use = IsPointerDevice(dev) ? XIMasterPointer : XIMasterKeyboard;
- *attachment = (paired ? paired->id : 0);
- } else if (master)
- {
- use = IsPointerDevice(master) ? XISlavePointer : XISlaveKeyboard;
- *attachment = master->id;
- } else
- use = XIFloatingSlave;
-
- return use;
-}
-
-/**
- * Write the info for device dev into the buffer pointed to by info.
- *
- * @return The number of bytes used.
- */
-static int
-ListDeviceInfo(ClientPtr client, DeviceIntPtr dev, xXIDeviceInfo* info)
-{
- char *any = (char*)&info[1];
- int len = 0, total_len = 0;
-
- info->deviceid = dev->id;
- info->use = GetDeviceUse(dev, &info->attachment);
- info->num_classes = 0;
- info->name_len = strlen(dev->name);
- info->enabled = dev->enabled;
- total_len = sizeof(xXIDeviceInfo);
-
- len = pad_to_int32(info->name_len);
- memset(any, 0, len);
- strncpy(any, dev->name, info->name_len);
- any += len;
- total_len += len;
-
- total_len += ListDeviceClasses(client, dev, any, &info->num_classes);
- return total_len;
-}
-
-/**
- * Write the class info of the device into the memory pointed to by any, set
- * nclasses to the number of classes in total and return the number of bytes
- * written.
- */
-int
-ListDeviceClasses(ClientPtr client, DeviceIntPtr dev,
- char *any, uint16_t *nclasses)
-{
- int total_len = 0;
- int len;
- int i;
- int rc;
-
- /* Check if the current device state should be suppressed */
- rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixReadAccess);
-
- if (dev->button)
- {
- (*nclasses)++;
- len = ListButtonInfo(dev, (xXIButtonInfo*)any, rc == Success);
- any += len;
- total_len += len;
- }
-
- if (dev->key)
- {
- (*nclasses)++;
- len = ListKeyInfo(dev, (xXIKeyInfo*)any);
- any += len;
- total_len += len;
- }
-
- for (i = 0; dev->valuator && i < dev->valuator->numAxes; i++)
- {
- (*nclasses)++;
- len = ListValuatorInfo(dev, (xXIValuatorInfo*)any, i, rc == Success);
- any += len;
- total_len += len;
- }
-
- return total_len;
-}
-
-static void
-SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info)
-{
- char n;
- char *any = (char*)&info[1];
- int i;
-
- /* Skip over name */
- any += pad_to_int32(info->name_len);
-
- for (i = 0; i < info->num_classes; i++)
- {
- int len = ((xXIAnyInfo*)any)->length;
- switch(((xXIAnyInfo*)any)->type)
- {
- case XIButtonClass:
- SwapButtonInfo(dev, (xXIButtonInfo*)any);
- break;
- case XIKeyClass:
- SwapKeyInfo(dev, (xXIKeyInfo*)any);
- break;
- case XIValuatorClass:
- SwapValuatorInfo(dev, (xXIValuatorInfo*)any);
- break;
- }
-
- any += len * 4;
- }
-
- swaps(&info->deviceid, n);
- swaps(&info->use, n);
- swaps(&info->attachment, n);
- swaps(&info->num_classes, n);
- swaps(&info->name_len, n);
-
-}
+/*
+ * Copyright © 2009 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors: Peter Hutterer
+ *
+ */
+
+/**
+ * @file Protocol handling for the XIQueryDevice request/reply.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "inputstr.h"
+#include <X11/X.h>
+#include <X11/Xatom.h>
+#include <X11/extensions/XI2proto.h>
+#include "xkbstr.h"
+#include "xkbsrv.h"
+#include "xserver-properties.h"
+#include "exevents.h"
+#include "xace.h"
+
+#include "xiquerydevice.h"
+
+static Bool ShouldSkipDevice(ClientPtr client, int deviceid, DeviceIntPtr d);
+static int
+ListDeviceInfo(ClientPtr client, DeviceIntPtr dev, xXIDeviceInfo* info);
+static int SizeDeviceInfo(DeviceIntPtr dev);
+static void SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info);
+int
+SProcXIQueryDevice(ClientPtr client)
+{
+ char n;
+
+ REQUEST(xXIQueryDeviceReq);
+
+ swaps(&stuff->length, n);
+ swaps(&stuff->deviceid, n);
+
+ return ProcXIQueryDevice(client);
+}
+
+int
+ProcXIQueryDevice(ClientPtr client)
+{
+ xXIQueryDeviceReply rep;
+ DeviceIntPtr dev = NULL;
+ int rc = Success;
+ int i = 0, len = 0;
+ char *info, *ptr;
+ Bool *skip = NULL;
+
+ REQUEST(xXIQueryDeviceReq);
+ REQUEST_SIZE_MATCH(xXIQueryDeviceReq);
+
+ if (stuff->deviceid != XIAllDevices && stuff->deviceid != XIAllMasterDevices)
+ {
+ rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
+ if (rc != Success)
+ {
+ client->errorValue = stuff->deviceid;
+ return rc;
+ }
+ len += SizeDeviceInfo(dev);
+ }
+ else
+ {
+ skip = calloc(sizeof(Bool), inputInfo.numDevices);
+ if (!skip)
+ return BadAlloc;
+
+ for (dev = inputInfo.devices; dev; dev = dev->next, i++)
+ {
+ skip[i] = ShouldSkipDevice(client, stuff->deviceid, dev);
+ if (!skip[i])
+ len += SizeDeviceInfo(dev);
+ }
+
+ for (dev = inputInfo.off_devices; dev; dev = dev->next, i++)
+ {
+ skip[i] = ShouldSkipDevice(client, stuff->deviceid, dev);
+ if (!skip[i])
+ len += SizeDeviceInfo(dev);
+ }
+ }
+
+ info = calloc(1, len);
+ if (!info)
+ return BadAlloc;
+
+ memset(&rep, 0, sizeof(xXIQueryDeviceReply));
+ rep.repType = X_Reply;
+ rep.RepType = X_XIQueryDevice;
+ rep.sequenceNumber = client->sequence;
+ rep.length = len/4;
+ rep.num_devices = 0;
+
+ ptr = info;
+ if (dev)
+ {
+ len = ListDeviceInfo(client, dev, (xXIDeviceInfo*)info);
+ if (client->swapped)
+ SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
+ info += len;
+ rep.num_devices = 1;
+ } else
+ {
+ i = 0;
+ for (dev = inputInfo.devices; dev; dev = dev->next, i++)
+ {
+ if (!skip[i])
+ {
+ len = ListDeviceInfo(client, dev, (xXIDeviceInfo*)info);
+ if (client->swapped)
+ SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
+ info += len;
+ rep.num_devices++;
+ }
+ }
+
+ for (dev = inputInfo.off_devices; dev; dev = dev->next, i++)
+ {
+ if (!skip[i])
+ {
+ len = ListDeviceInfo(client, dev, (xXIDeviceInfo*)info);
+ if (client->swapped)
+ SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
+ info += len;
+ rep.num_devices++;
+ }
+ }
+ }
+
+ WriteReplyToClient(client, sizeof(xXIQueryDeviceReply), &rep);
+ WriteToClient(client, rep.length * 4, ptr);
+ free(ptr);
+ free(skip);
+ return rc;
+}
+
+void
+SRepXIQueryDevice(ClientPtr client, int size, xXIQueryDeviceReply *rep)
+{
+ char n;
+
+ swaps(&rep->sequenceNumber, n);
+ swapl(&rep->length, n);
+ swaps(&rep->num_devices, n);
+
+ /* Device info is already swapped, see ProcXIQueryDevice */
+
+ WriteToClient(client, size, (char *)rep);
+}
+
+
+/**
+ * @return Whether the device should be included in the returned list.
+ */
+static Bool
+ShouldSkipDevice(ClientPtr client, int deviceid, DeviceIntPtr dev)
+{
+ /* if all devices are not being queried, only master devices are */
+ if (deviceid == XIAllDevices || IsMaster(dev))
+ {
+ int rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixGetAttrAccess);
+ if (rc == Success)
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/**
+ * @return The number of bytes needed to store this device's xXIDeviceInfo
+ * (and its classes).
+ */
+static int
+SizeDeviceInfo(DeviceIntPtr dev)
+{
+ int len = sizeof(xXIDeviceInfo);
+
+ /* 4-padded name */
+ len += pad_to_int32(strlen(dev->name));
+
+ return len + SizeDeviceClasses(dev);
+
+}
+
+/*
+ * @return The number of bytes needed to store this device's classes.
+ */
+int
+SizeDeviceClasses(DeviceIntPtr dev)
+{
+ int len = 0;
+
+ if (dev->button)
+ {
+ len += sizeof(xXIButtonInfo);
+ len += dev->button->numButtons * sizeof(Atom);
+ len += pad_to_int32(bits_to_bytes(dev->button->numButtons));
+ }
+
+ if (dev->key)
+ {
+ XkbDescPtr xkb = dev->key->xkbInfo->desc;
+ len += sizeof(xXIKeyInfo);
+ len += (xkb->max_key_code - xkb->min_key_code + 1) * sizeof(uint32_t);
+ }
+
+ if (dev->valuator)
+ len += sizeof(xXIValuatorInfo) * dev->valuator->numAxes;
+
+ return len;
+}
+
+
+/**
+ * Write button information into info.
+ * @return Number of bytes written into info.
+ */
+int
+ListButtonInfo(DeviceIntPtr dev, xXIButtonInfo* info, Bool reportState)
+{
+ unsigned char *bits;
+ int mask_len;
+ int i;
+
+ if (!dev || !dev->button)
+ return 0;
+
+ mask_len = bytes_to_int32(bits_to_bytes(dev->button->numButtons));
+
+ info->type = ButtonClass;
+ info->num_buttons = dev->button->numButtons;
+ info->length = bytes_to_int32(sizeof(xXIButtonInfo)) +
+ info->num_buttons + mask_len;
+ info->sourceid = dev->button->sourceid;
+
+ bits = (unsigned char*)&info[1];
+ memset(bits, 0, mask_len * 4);
+
+ if (reportState)
+ for (i = 0; i < dev->button->numButtons; i++)
+ if (BitIsOn(dev->button->down, i))
+ SetBit(bits, i);
+
+ bits += mask_len * 4;
+ memcpy(bits, dev->button->labels, dev->button->numButtons * sizeof(Atom));
+
+ return info->length * 4;
+}
+
+static void
+SwapButtonInfo(DeviceIntPtr dev, xXIButtonInfo* info)
+{
+ char n;
+ Atom *btn;
+ int i;
+ swaps(&info->type, n);
+ swaps(&info->length, n);
+ swaps(&info->sourceid, n);
+
+ for (i = 0, btn = (Atom*)&info[1]; i < info->num_buttons; i++, btn++)
+ swaps(btn, n);
+
+ swaps(&info->num_buttons, n);
+}
+
+/**
+ * Write key information into info.
+ * @return Number of bytes written into info.
+ */
+int
+ListKeyInfo(DeviceIntPtr dev, xXIKeyInfo* info)
+{
+ int i;
+ XkbDescPtr xkb = dev->key->xkbInfo->desc;
+ uint32_t *kc;
+
+ info->type = KeyClass;
+ info->num_keycodes = xkb->max_key_code - xkb->min_key_code + 1;
+ info->length = sizeof(xXIKeyInfo)/4 + info->num_keycodes;
+ info->sourceid = dev->key->sourceid;
+
+ kc = (uint32_t*)&info[1];
+ for (i = xkb->min_key_code; i <= xkb->max_key_code; i++, kc++)
+ *kc = i;
+
+ return info->length * 4;
+}
+
+static void
+SwapKeyInfo(DeviceIntPtr dev, xXIKeyInfo* info)
+{
+ char n;
+ uint32_t *key;
+ int i;
+ swaps(&info->type, n);
+ swaps(&info->length, n);
+ swaps(&info->sourceid, n);
+
+ for (i = 0, key = (uint32_t*)&info[1]; i < info->num_keycodes; i++, key++)
+ swapl(key, n);
+
+ swaps(&info->num_keycodes, n);
+}
+
+/**
+ * List axis information for the given axis.
+ *
+ * @return The number of bytes written into info.
+ */
+int
+ListValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo* info, int axisnumber,
+ Bool reportState)
+{
+ ValuatorClassPtr v = dev->valuator;
+
+ info->type = ValuatorClass;
+ info->length = sizeof(xXIValuatorInfo)/4;
+ info->label = v->axes[axisnumber].label;
+ info->min.integral = v->axes[axisnumber].min_value;
+ info->min.frac = 0;
+ info->max.integral = v->axes[axisnumber].max_value;
+ info->max.frac = 0;
+ info->value.integral = (int)v->axisVal[axisnumber];
+ info->value.frac = (int)(v->axisVal[axisnumber] * (1 << 16) * (1 << 16));
+ info->resolution = v->axes[axisnumber].resolution;
+ info->number = axisnumber;
+ info->mode = valuator_get_mode(dev, axisnumber);
+ info->sourceid = v->sourceid;
+
+ if (!reportState)
+ info->value = info->min;
+
+ return info->length * 4;
+}
+
+static void
+SwapValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo* info)
+{
+ char n;
+ swaps(&info->type, n);
+ swaps(&info->length, n);
+ swapl(&info->label, n);
+ swapl(&info->min.integral, n);
+ swapl(&info->min.frac, n);
+ swapl(&info->max.integral, n);
+ swapl(&info->max.frac, n);
+ swaps(&info->number, n);
+ swaps(&info->sourceid, n);
+}
+
+int GetDeviceUse(DeviceIntPtr dev, uint16_t *attachment)
+{
+ DeviceIntPtr master = GetMaster(dev, MASTER_ATTACHED);
+ int use;
+
+ if (IsMaster(dev))
+ {
+ DeviceIntPtr paired = GetPairedDevice(dev);
+ use = IsPointerDevice(dev) ? XIMasterPointer : XIMasterKeyboard;
+ *attachment = (paired ? paired->id : 0);
+ } else if (!IsFloating(dev))
+ {
+ use = IsPointerDevice(master) ? XISlavePointer : XISlaveKeyboard;
+ *attachment = master->id;
+ } else
+ use = XIFloatingSlave;
+
+ return use;
+}
+
+/**
+ * Write the info for device dev into the buffer pointed to by info.
+ *
+ * @return The number of bytes used.
+ */
+static int
+ListDeviceInfo(ClientPtr client, DeviceIntPtr dev, xXIDeviceInfo* info)
+{
+ char *any = (char*)&info[1];
+ int len = 0, total_len = 0;
+
+ info->deviceid = dev->id;
+ info->use = GetDeviceUse(dev, &info->attachment);
+ info->num_classes = 0;
+ info->name_len = strlen(dev->name);
+ info->enabled = dev->enabled;
+ total_len = sizeof(xXIDeviceInfo);
+
+ len = pad_to_int32(info->name_len);
+ memset(any, 0, len);
+ strncpy(any, dev->name, info->name_len);
+ any += len;
+ total_len += len;
+
+ total_len += ListDeviceClasses(client, dev, any, &info->num_classes);
+ return total_len;
+}
+
+/**
+ * Write the class info of the device into the memory pointed to by any, set
+ * nclasses to the number of classes in total and return the number of bytes
+ * written.
+ */
+int
+ListDeviceClasses(ClientPtr client, DeviceIntPtr dev,
+ char *any, uint16_t *nclasses)
+{
+ int total_len = 0;
+ int len;
+ int i;
+ int rc;
+
+ /* Check if the current device state should be suppressed */
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixReadAccess);
+
+ if (dev->button)
+ {
+ (*nclasses)++;
+ len = ListButtonInfo(dev, (xXIButtonInfo*)any, rc == Success);
+ any += len;
+ total_len += len;
+ }
+
+ if (dev->key)
+ {
+ (*nclasses)++;
+ len = ListKeyInfo(dev, (xXIKeyInfo*)any);
+ any += len;
+ total_len += len;
+ }
+
+ for (i = 0; dev->valuator && i < dev->valuator->numAxes; i++)
+ {
+ (*nclasses)++;
+ len = ListValuatorInfo(dev, (xXIValuatorInfo*)any, i, rc == Success);
+ any += len;
+ total_len += len;
+ }
+
+ return total_len;
+}
+
+static void
+SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info)
+{
+ char n;
+ char *any = (char*)&info[1];
+ int i;
+
+ /* Skip over name */
+ any += pad_to_int32(info->name_len);
+
+ for (i = 0; i < info->num_classes; i++)
+ {
+ int len = ((xXIAnyInfo*)any)->length;
+ switch(((xXIAnyInfo*)any)->type)
+ {
+ case XIButtonClass:
+ SwapButtonInfo(dev, (xXIButtonInfo*)any);
+ break;
+ case XIKeyClass:
+ SwapKeyInfo(dev, (xXIKeyInfo*)any);
+ break;
+ case XIValuatorClass:
+ SwapValuatorInfo(dev, (xXIValuatorInfo*)any);
+ break;
+ }
+
+ any += len * 4;
+ }
+
+ swaps(&info->deviceid, n);
+ swaps(&info->use, n);
+ swaps(&info->attachment, n);
+ swaps(&info->num_classes, n);
+ swaps(&info->name_len, n);
+
+}