| File: | Xi/xiquerydevice.c |
| Location: | line 124, column 9 |
| Description: | Value stored to 'info' is never read |
| 1 | /* |
| 2 | * Copyright © 2009 Red Hat, Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 21 | * DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | * Authors: Peter Hutterer |
| 24 | * |
| 25 | */ |
| 26 | |
| 27 | /** |
| 28 | * @file Protocol handling for the XIQueryDevice request/reply. |
| 29 | */ |
| 30 | |
| 31 | #ifdef HAVE_DIX_CONFIG_H1 |
| 32 | #include <dix-config.h> |
| 33 | #endif |
| 34 | |
| 35 | #include "inputstr.h" |
| 36 | #include <X11/X.h> |
| 37 | #include <X11/Xatom.h> |
| 38 | #include <X11/extensions/XI2proto.h> |
| 39 | #include "xkbstr.h" |
| 40 | #include "xkbsrv.h" |
| 41 | #include "xserver-properties.h" |
| 42 | #include "exevents.h" |
| 43 | #include "xace.h" |
| 44 | #include "inpututils.h" |
| 45 | |
| 46 | #include "xiquerydevice.h" |
| 47 | |
| 48 | static Bool ShouldSkipDevice(ClientPtr client, int deviceid, DeviceIntPtr d); |
| 49 | static int |
| 50 | ListDeviceInfo(ClientPtr client, DeviceIntPtr dev, xXIDeviceInfo * info); |
| 51 | static int SizeDeviceInfo(DeviceIntPtr dev); |
| 52 | static void SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo * info); |
| 53 | int |
| 54 | SProcXIQueryDevice(ClientPtr client) |
| 55 | { |
| 56 | REQUEST(xXIQueryDeviceReq)xXIQueryDeviceReq *stuff = (xXIQueryDeviceReq *)client->requestBuffer; |
| 57 | REQUEST_SIZE_MATCH(xXIQueryDeviceReq)if ((sizeof(xXIQueryDeviceReq) >> 2) != client->req_len ) return(16); |
| 58 | |
| 59 | swaps(&stuff->length)do { if (sizeof(*(&stuff->length)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&stuff->length) & 1) && ((uintptr_t)(&stuff->length) & 1) == 0) *(&stuff->length) = lswaps(*(&stuff->length )); else swap_uint16((uint16_t *)(&stuff->length)); } while (0); |
| 60 | swaps(&stuff->deviceid)do { if (sizeof(*(&stuff->deviceid)) != 2) wrong_size( ); if (__builtin_constant_p((uintptr_t)(&stuff->deviceid ) & 1) && ((uintptr_t)(&stuff->deviceid) & 1) == 0) *(&stuff->deviceid) = lswaps(*(&stuff-> deviceid)); else swap_uint16((uint16_t *)(&stuff->deviceid )); } while (0); |
| 61 | |
| 62 | return ProcXIQueryDevice(client); |
| 63 | } |
| 64 | |
| 65 | int |
| 66 | ProcXIQueryDevice(ClientPtr client) |
| 67 | { |
| 68 | xXIQueryDeviceReply rep; |
| 69 | DeviceIntPtr dev = NULL((void*)0); |
| 70 | int rc = Success0; |
| 71 | int i = 0, len = 0; |
| 72 | char *info, *ptr; |
| 73 | Bool *skip = NULL((void*)0); |
| 74 | |
| 75 | REQUEST(xXIQueryDeviceReq)xXIQueryDeviceReq *stuff = (xXIQueryDeviceReq *)client->requestBuffer; |
| 76 | REQUEST_SIZE_MATCH(xXIQueryDeviceReq)if ((sizeof(xXIQueryDeviceReq) >> 2) != client->req_len ) return(16); |
| 77 | |
| 78 | if (stuff->deviceid != XIAllDevices0 && |
| 79 | stuff->deviceid != XIAllMasterDevices1) { |
| 80 | rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess(1<<4)); |
| 81 | if (rc != Success0) { |
| 82 | client->errorValue = stuff->deviceid; |
| 83 | return rc; |
| 84 | } |
| 85 | len += SizeDeviceInfo(dev); |
| 86 | } |
| 87 | else { |
| 88 | skip = calloc(sizeof(Bool), inputInfo.numDevices); |
| 89 | if (!skip) |
| 90 | return BadAlloc11; |
| 91 | |
| 92 | for (dev = inputInfo.devices; dev; dev = dev->next, i++) { |
| 93 | skip[i] = ShouldSkipDevice(client, stuff->deviceid, dev); |
| 94 | if (!skip[i]) |
| 95 | len += SizeDeviceInfo(dev); |
| 96 | } |
| 97 | |
| 98 | for (dev = inputInfo.off_devices; dev; dev = dev->next, i++) { |
| 99 | skip[i] = ShouldSkipDevice(client, stuff->deviceid, dev); |
| 100 | if (!skip[i]) |
| 101 | len += SizeDeviceInfo(dev); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | info = calloc(1, len); |
| 106 | if (!info) { |
| 107 | free(skip); |
| 108 | return BadAlloc11; |
| 109 | } |
| 110 | |
| 111 | rep = (xXIQueryDeviceReply) { |
| 112 | .repType = X_Reply1, |
| 113 | .RepType = X_XIQueryDevice48, |
| 114 | .sequenceNumber = client->sequence, |
| 115 | .length = len / 4, |
| 116 | .num_devices = 0 |
| 117 | }; |
| 118 | |
| 119 | ptr = info; |
| 120 | if (dev) { |
| 121 | len = ListDeviceInfo(client, dev, (xXIDeviceInfo *) info); |
| 122 | if (client->swapped) |
| 123 | SwapDeviceInfo(dev, (xXIDeviceInfo *) info); |
| 124 | info += len; |
Value stored to 'info' is never read | |
| 125 | rep.num_devices = 1; |
| 126 | } |
| 127 | else { |
| 128 | i = 0; |
| 129 | for (dev = inputInfo.devices; dev; dev = dev->next, i++) { |
| 130 | if (!skip[i]) { |
| 131 | len = ListDeviceInfo(client, dev, (xXIDeviceInfo *) info); |
| 132 | if (client->swapped) |
| 133 | SwapDeviceInfo(dev, (xXIDeviceInfo *) info); |
| 134 | info += len; |
| 135 | rep.num_devices++; |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | for (dev = inputInfo.off_devices; dev; dev = dev->next, i++) { |
| 140 | if (!skip[i]) { |
| 141 | len = ListDeviceInfo(client, dev, (xXIDeviceInfo *) info); |
| 142 | if (client->swapped) |
| 143 | SwapDeviceInfo(dev, (xXIDeviceInfo *) info); |
| 144 | info += len; |
| 145 | rep.num_devices++; |
| 146 | } |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | len = rep.length * 4; |
| 151 | WriteReplyToClient(client, sizeof(xXIQueryDeviceReply), &rep){ if ((client)->swapped) (*ReplySwapVector[((xReq *)(client )->requestBuffer)->reqType]) (client, (int)(sizeof(xXIQueryDeviceReply )), &rep); else WriteToClient(client, (int)(sizeof(xXIQueryDeviceReply )), (&rep)); }; |
| 152 | WriteToClient(client, len, ptr); |
| 153 | free(ptr); |
| 154 | free(skip); |
| 155 | return rc; |
| 156 | } |
| 157 | |
| 158 | void |
| 159 | SRepXIQueryDevice(ClientPtr client, int size, xXIQueryDeviceReply * rep) |
| 160 | { |
| 161 | swaps(&rep->sequenceNumber)do { if (sizeof(*(&rep->sequenceNumber)) != 2) wrong_size (); if (__builtin_constant_p((uintptr_t)(&rep->sequenceNumber ) & 1) && ((uintptr_t)(&rep->sequenceNumber ) & 1) == 0) *(&rep->sequenceNumber) = lswaps(*(& rep->sequenceNumber)); else swap_uint16((uint16_t *)(& rep->sequenceNumber)); } while (0); |
| 162 | swapl(&rep->length)do { if (sizeof(*(&rep->length)) != 4) wrong_size(); if (__builtin_constant_p((uintptr_t)(&rep->length) & 3) && ((uintptr_t)(&rep->length) & 3) == 0 ) *(&rep->length) = lswapl(*(&rep->length)); else swap_uint32((uint32_t *)(&rep->length)); } while (0); |
| 163 | swaps(&rep->num_devices)do { if (sizeof(*(&rep->num_devices)) != 2) wrong_size (); if (__builtin_constant_p((uintptr_t)(&rep->num_devices ) & 1) && ((uintptr_t)(&rep->num_devices) & 1) == 0) *(&rep->num_devices) = lswaps(*(&rep-> num_devices)); else swap_uint16((uint16_t *)(&rep->num_devices )); } while (0); |
| 164 | |
| 165 | /* Device info is already swapped, see ProcXIQueryDevice */ |
| 166 | |
| 167 | WriteToClient(client, size, rep); |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * @return Whether the device should be included in the returned list. |
| 172 | */ |
| 173 | static Bool |
| 174 | ShouldSkipDevice(ClientPtr client, int deviceid, DeviceIntPtr dev) |
| 175 | { |
| 176 | /* if all devices are not being queried, only master devices are */ |
| 177 | if (deviceid == XIAllDevices0 || IsMaster(dev)) { |
| 178 | int rc = XaceHook(XACE_DEVICE_ACCESS3, client, dev, DixGetAttrAccess(1<<4)); |
| 179 | |
| 180 | if (rc == Success0) |
| 181 | return FALSE0; |
| 182 | } |
| 183 | return TRUE1; |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * @return The number of bytes needed to store this device's xXIDeviceInfo |
| 188 | * (and its classes). |
| 189 | */ |
| 190 | static int |
| 191 | SizeDeviceInfo(DeviceIntPtr dev) |
| 192 | { |
| 193 | int len = sizeof(xXIDeviceInfo); |
| 194 | |
| 195 | /* 4-padded name */ |
| 196 | len += pad_to_int32(strlen(dev->name)); |
| 197 | |
| 198 | return len + SizeDeviceClasses(dev); |
| 199 | |
| 200 | } |
| 201 | |
| 202 | /* |
| 203 | * @return The number of bytes needed to store this device's classes. |
| 204 | */ |
| 205 | int |
| 206 | SizeDeviceClasses(DeviceIntPtr dev) |
| 207 | { |
| 208 | int len = 0; |
| 209 | |
| 210 | if (dev->button) { |
| 211 | len += sizeof(xXIButtonInfo); |
| 212 | len += dev->button->numButtons * sizeof(Atom); |
| 213 | len += pad_to_int32(bits_to_bytes(dev->button->numButtons)); |
| 214 | } |
| 215 | |
| 216 | if (dev->key) { |
| 217 | XkbDescPtr xkb = dev->key->xkbInfo->desc; |
| 218 | |
| 219 | len += sizeof(xXIKeyInfo); |
| 220 | len += (xkb->max_key_code - xkb->min_key_code + 1) * sizeof(uint32_t); |
| 221 | } |
| 222 | |
| 223 | if (dev->valuator) { |
| 224 | int i; |
| 225 | |
| 226 | len += (sizeof(xXIValuatorInfo)) * dev->valuator->numAxes; |
| 227 | |
| 228 | for (i = 0; i < dev->valuator->numAxes; i++) { |
| 229 | if (dev->valuator->axes[i].scroll.type != SCROLL_TYPE_NONE) |
| 230 | len += sizeof(xXIScrollInfo); |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | if (dev->touch) |
| 235 | len += sizeof(xXITouchInfo); |
| 236 | |
| 237 | return len; |
| 238 | } |
| 239 | |
| 240 | /** |
| 241 | * Write button information into info. |
| 242 | * @return Number of bytes written into info. |
| 243 | */ |
| 244 | int |
| 245 | ListButtonInfo(DeviceIntPtr dev, xXIButtonInfo * info, Bool reportState) |
| 246 | { |
| 247 | unsigned char *bits; |
| 248 | int mask_len; |
| 249 | int i; |
| 250 | |
| 251 | if (!dev || !dev->button) |
| 252 | return 0; |
| 253 | |
| 254 | mask_len = bytes_to_int32(bits_to_bytes(dev->button->numButtons)); |
| 255 | |
| 256 | info->type = ButtonClass1; |
| 257 | info->num_buttons = dev->button->numButtons; |
| 258 | info->length = bytes_to_int32(sizeof(xXIButtonInfo)) + |
| 259 | info->num_buttons + mask_len; |
| 260 | info->sourceid = dev->button->sourceid; |
| 261 | |
| 262 | bits = (unsigned char *) &info[1]; |
| 263 | memset(bits, 0, mask_len * 4)__builtin___memset_chk (bits, 0, mask_len * 4, __builtin_object_size (bits, 0)); |
| 264 | |
| 265 | if (reportState) |
| 266 | for (i = 0; i < dev->button->numButtons; i++) |
| 267 | if (BitIsOn(dev->button->down, i)(!!(((const BYTE *) (dev->button->down))[(i)>>3] & (1 << ((i) & 7))))) |
| 268 | SetBit(bits, i)(((BYTE *) (bits))[(i)>>3] |= (1 << ((i) & 7) )); |
| 269 | |
| 270 | bits += mask_len * 4; |
| 271 | memcpy(bits, dev->button->labels, dev->button->numButtons * sizeof(Atom))__builtin___memcpy_chk (bits, dev->button->labels, dev-> button->numButtons * sizeof(Atom), __builtin_object_size ( bits, 0)); |
| 272 | |
| 273 | return info->length * 4; |
| 274 | } |
| 275 | |
| 276 | static void |
| 277 | SwapButtonInfo(DeviceIntPtr dev, xXIButtonInfo * info) |
| 278 | { |
| 279 | Atom *btn; |
| 280 | int i; |
| 281 | |
| 282 | swaps(&info->type)do { if (sizeof(*(&info->type)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->type) & 1 ) && ((uintptr_t)(&info->type) & 1) == 0) * (&info->type) = lswaps(*(&info->type)); else swap_uint16 ((uint16_t *)(&info->type)); } while (0); |
| 283 | swaps(&info->length)do { if (sizeof(*(&info->length)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->length) & 1) && ((uintptr_t)(&info->length) & 1) == 0) *(&info->length) = lswaps(*(&info->length)) ; else swap_uint16((uint16_t *)(&info->length)); } while (0); |
| 284 | swaps(&info->sourceid)do { if (sizeof(*(&info->sourceid)) != 2) wrong_size() ; if (__builtin_constant_p((uintptr_t)(&info->sourceid ) & 1) && ((uintptr_t)(&info->sourceid) & 1) == 0) *(&info->sourceid) = lswaps(*(&info-> sourceid)); else swap_uint16((uint16_t *)(&info->sourceid )); } while (0); |
| 285 | |
| 286 | for (i = 0, btn = (Atom *) &info[1]; i < info->num_buttons; i++, btn++) |
| 287 | swapl(btn)do { if (sizeof(*(btn)) != 4) wrong_size(); if (__builtin_constant_p ((uintptr_t)(btn) & 3) && ((uintptr_t)(btn) & 3) == 0) *(btn) = lswapl(*(btn)); else swap_uint32((uint32_t *)(btn)); } while (0); |
| 288 | |
| 289 | swaps(&info->num_buttons)do { if (sizeof(*(&info->num_buttons)) != 2) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->num_buttons ) & 1) && ((uintptr_t)(&info->num_buttons) & 1) == 0) *(&info->num_buttons) = lswaps(*(& info->num_buttons)); else swap_uint16((uint16_t *)(&info ->num_buttons)); } while (0); |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * Write key information into info. |
| 294 | * @return Number of bytes written into info. |
| 295 | */ |
| 296 | int |
| 297 | ListKeyInfo(DeviceIntPtr dev, xXIKeyInfo * info) |
| 298 | { |
| 299 | int i; |
| 300 | XkbDescPtr xkb = dev->key->xkbInfo->desc; |
| 301 | uint32_t *kc; |
| 302 | |
| 303 | info->type = KeyClass0; |
| 304 | info->num_keycodes = xkb->max_key_code - xkb->min_key_code + 1; |
| 305 | info->length = sizeof(xXIKeyInfo) / 4 + info->num_keycodes; |
| 306 | info->sourceid = dev->key->sourceid; |
| 307 | |
| 308 | kc = (uint32_t *) &info[1]; |
| 309 | for (i = xkb->min_key_code; i <= xkb->max_key_code; i++, kc++) |
| 310 | *kc = i; |
| 311 | |
| 312 | return info->length * 4; |
| 313 | } |
| 314 | |
| 315 | static void |
| 316 | SwapKeyInfo(DeviceIntPtr dev, xXIKeyInfo * info) |
| 317 | { |
| 318 | uint32_t *key; |
| 319 | int i; |
| 320 | |
| 321 | swaps(&info->type)do { if (sizeof(*(&info->type)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->type) & 1 ) && ((uintptr_t)(&info->type) & 1) == 0) * (&info->type) = lswaps(*(&info->type)); else swap_uint16 ((uint16_t *)(&info->type)); } while (0); |
| 322 | swaps(&info->length)do { if (sizeof(*(&info->length)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->length) & 1) && ((uintptr_t)(&info->length) & 1) == 0) *(&info->length) = lswaps(*(&info->length)) ; else swap_uint16((uint16_t *)(&info->length)); } while (0); |
| 323 | swaps(&info->sourceid)do { if (sizeof(*(&info->sourceid)) != 2) wrong_size() ; if (__builtin_constant_p((uintptr_t)(&info->sourceid ) & 1) && ((uintptr_t)(&info->sourceid) & 1) == 0) *(&info->sourceid) = lswaps(*(&info-> sourceid)); else swap_uint16((uint16_t *)(&info->sourceid )); } while (0); |
| 324 | |
| 325 | for (i = 0, key = (uint32_t *) &info[1]; i < info->num_keycodes; |
| 326 | i++, key++) |
| 327 | swapl(key)do { if (sizeof(*(key)) != 4) wrong_size(); if (__builtin_constant_p ((uintptr_t)(key) & 3) && ((uintptr_t)(key) & 3) == 0) *(key) = lswapl(*(key)); else swap_uint32((uint32_t *)(key)); } while (0); |
| 328 | |
| 329 | swaps(&info->num_keycodes)do { if (sizeof(*(&info->num_keycodes)) != 2) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->num_keycodes ) & 1) && ((uintptr_t)(&info->num_keycodes ) & 1) == 0) *(&info->num_keycodes) = lswaps(*(& info->num_keycodes)); else swap_uint16((uint16_t *)(&info ->num_keycodes)); } while (0); |
| 330 | } |
| 331 | |
| 332 | /** |
| 333 | * List axis information for the given axis. |
| 334 | * |
| 335 | * @return The number of bytes written into info. |
| 336 | */ |
| 337 | int |
| 338 | ListValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo * info, int axisnumber, |
| 339 | Bool reportState) |
| 340 | { |
| 341 | ValuatorClassPtr v = dev->valuator; |
| 342 | |
| 343 | info->type = ValuatorClass2; |
| 344 | info->length = sizeof(xXIValuatorInfo) / 4; |
| 345 | info->label = v->axes[axisnumber].label; |
| 346 | info->min.integral = v->axes[axisnumber].min_value; |
| 347 | info->min.frac = 0; |
| 348 | info->max.integral = v->axes[axisnumber].max_value; |
| 349 | info->max.frac = 0; |
| 350 | info->value = double_to_fp3232(v->axisVal[axisnumber]); |
| 351 | info->resolution = v->axes[axisnumber].resolution; |
| 352 | info->number = axisnumber; |
| 353 | info->mode = valuator_get_mode(dev, axisnumber); |
| 354 | info->sourceid = v->sourceid; |
| 355 | |
| 356 | if (!reportState) |
| 357 | info->value = info->min; |
| 358 | |
| 359 | return info->length * 4; |
| 360 | } |
| 361 | |
| 362 | static void |
| 363 | SwapValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo * info) |
| 364 | { |
| 365 | swaps(&info->type)do { if (sizeof(*(&info->type)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->type) & 1 ) && ((uintptr_t)(&info->type) & 1) == 0) * (&info->type) = lswaps(*(&info->type)); else swap_uint16 ((uint16_t *)(&info->type)); } while (0); |
| 366 | swaps(&info->length)do { if (sizeof(*(&info->length)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->length) & 1) && ((uintptr_t)(&info->length) & 1) == 0) *(&info->length) = lswaps(*(&info->length)) ; else swap_uint16((uint16_t *)(&info->length)); } while (0); |
| 367 | swapl(&info->label)do { if (sizeof(*(&info->label)) != 4) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->label) & 3) && ((uintptr_t)(&info->label) & 3) == 0 ) *(&info->label) = lswapl(*(&info->label)); else swap_uint32((uint32_t *)(&info->label)); } while (0); |
| 368 | swapl(&info->min.integral)do { if (sizeof(*(&info->min.integral)) != 4) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->min.integral ) & 3) && ((uintptr_t)(&info->min.integral ) & 3) == 0) *(&info->min.integral) = lswapl(*(& info->min.integral)); else swap_uint32((uint32_t *)(&info ->min.integral)); } while (0); |
| 369 | swapl(&info->min.frac)do { if (sizeof(*(&info->min.frac)) != 4) wrong_size() ; if (__builtin_constant_p((uintptr_t)(&info->min.frac ) & 3) && ((uintptr_t)(&info->min.frac) & 3) == 0) *(&info->min.frac) = lswapl(*(&info-> min.frac)); else swap_uint32((uint32_t *)(&info->min.frac )); } while (0); |
| 370 | swapl(&info->max.integral)do { if (sizeof(*(&info->max.integral)) != 4) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->max.integral ) & 3) && ((uintptr_t)(&info->max.integral ) & 3) == 0) *(&info->max.integral) = lswapl(*(& info->max.integral)); else swap_uint32((uint32_t *)(&info ->max.integral)); } while (0); |
| 371 | swapl(&info->max.frac)do { if (sizeof(*(&info->max.frac)) != 4) wrong_size() ; if (__builtin_constant_p((uintptr_t)(&info->max.frac ) & 3) && ((uintptr_t)(&info->max.frac) & 3) == 0) *(&info->max.frac) = lswapl(*(&info-> max.frac)); else swap_uint32((uint32_t *)(&info->max.frac )); } while (0); |
| 372 | swaps(&info->number)do { if (sizeof(*(&info->number)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->number) & 1) && ((uintptr_t)(&info->number) & 1) == 0) *(&info->number) = lswaps(*(&info->number)) ; else swap_uint16((uint16_t *)(&info->number)); } while (0); |
| 373 | swaps(&info->sourceid)do { if (sizeof(*(&info->sourceid)) != 2) wrong_size() ; if (__builtin_constant_p((uintptr_t)(&info->sourceid ) & 1) && ((uintptr_t)(&info->sourceid) & 1) == 0) *(&info->sourceid) = lswaps(*(&info-> sourceid)); else swap_uint16((uint16_t *)(&info->sourceid )); } while (0); |
| 374 | } |
| 375 | |
| 376 | int |
| 377 | ListScrollInfo(DeviceIntPtr dev, xXIScrollInfo * info, int axisnumber) |
| 378 | { |
| 379 | ValuatorClassPtr v = dev->valuator; |
| 380 | AxisInfoPtr axis = &v->axes[axisnumber]; |
| 381 | |
| 382 | if (axis->scroll.type == SCROLL_TYPE_NONE) |
| 383 | return 0; |
| 384 | |
| 385 | info->type = XIScrollClass3; |
| 386 | info->length = sizeof(xXIScrollInfo) / 4; |
| 387 | info->number = axisnumber; |
| 388 | switch (axis->scroll.type) { |
| 389 | case SCROLL_TYPE_VERTICAL: |
| 390 | info->scroll_type = XIScrollTypeVertical1; |
| 391 | break; |
| 392 | case SCROLL_TYPE_HORIZONTAL: |
| 393 | info->scroll_type = XIScrollTypeHorizontal2; |
| 394 | break; |
| 395 | default: |
| 396 | ErrorF("[Xi] Unknown scroll type %d. This is a bug.\n", |
| 397 | axis->scroll.type); |
| 398 | break; |
| 399 | } |
| 400 | info->increment = double_to_fp3232(axis->scroll.increment); |
| 401 | info->sourceid = v->sourceid; |
| 402 | |
| 403 | info->flags = 0; |
| 404 | |
| 405 | if (axis->scroll.flags & SCROLL_FLAG_DONT_EMULATE) |
| 406 | info->flags |= XIScrollFlagNoEmulation(1 << 0); |
| 407 | if (axis->scroll.flags & SCROLL_FLAG_PREFERRED) |
| 408 | info->flags |= XIScrollFlagPreferred(1 << 1); |
| 409 | |
| 410 | return info->length * 4; |
| 411 | } |
| 412 | |
| 413 | static void |
| 414 | SwapScrollInfo(DeviceIntPtr dev, xXIScrollInfo * info) |
| 415 | { |
| 416 | swaps(&info->type)do { if (sizeof(*(&info->type)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->type) & 1 ) && ((uintptr_t)(&info->type) & 1) == 0) * (&info->type) = lswaps(*(&info->type)); else swap_uint16 ((uint16_t *)(&info->type)); } while (0); |
| 417 | swaps(&info->length)do { if (sizeof(*(&info->length)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->length) & 1) && ((uintptr_t)(&info->length) & 1) == 0) *(&info->length) = lswaps(*(&info->length)) ; else swap_uint16((uint16_t *)(&info->length)); } while (0); |
| 418 | swaps(&info->number)do { if (sizeof(*(&info->number)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&info->number) & 1) && ((uintptr_t)(&info->number) & 1) == 0) *(&info->number) = lswaps(*(&info->number)) ; else swap_uint16((uint16_t *)(&info->number)); } while (0); |
| 419 | swaps(&info->sourceid)do { if (sizeof(*(&info->sourceid)) != 2) wrong_size() ; if (__builtin_constant_p((uintptr_t)(&info->sourceid ) & 1) && ((uintptr_t)(&info->sourceid) & 1) == 0) *(&info->sourceid) = lswaps(*(&info-> sourceid)); else swap_uint16((uint16_t *)(&info->sourceid )); } while (0); |
| 420 | swaps(&info->scroll_type)do { if (sizeof(*(&info->scroll_type)) != 2) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->scroll_type ) & 1) && ((uintptr_t)(&info->scroll_type) & 1) == 0) *(&info->scroll_type) = lswaps(*(& info->scroll_type)); else swap_uint16((uint16_t *)(&info ->scroll_type)); } while (0); |
| 421 | swapl(&info->increment.integral)do { if (sizeof(*(&info->increment.integral)) != 4) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->increment .integral) & 3) && ((uintptr_t)(&info->increment .integral) & 3) == 0) *(&info->increment.integral) = lswapl(*(&info->increment.integral)); else swap_uint32 ((uint32_t *)(&info->increment.integral)); } while (0); |
| 422 | swapl(&info->increment.frac)do { if (sizeof(*(&info->increment.frac)) != 4) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->increment .frac) & 3) && ((uintptr_t)(&info->increment .frac) & 3) == 0) *(&info->increment.frac) = lswapl (*(&info->increment.frac)); else swap_uint32((uint32_t *)(&info->increment.frac)); } while (0); |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * List multitouch information |
| 427 | * |
| 428 | * @return The number of bytes written into info. |
| 429 | */ |
| 430 | int |
| 431 | ListTouchInfo(DeviceIntPtr dev, xXITouchInfo * touch) |
| 432 | { |
| 433 | touch->type = XITouchClass8; |
| 434 | touch->length = sizeof(xXITouchInfo) >> 2; |
| 435 | touch->sourceid = dev->touch->sourceid; |
| 436 | touch->mode = dev->touch->mode; |
| 437 | touch->num_touches = dev->touch->num_touches; |
| 438 | |
| 439 | return touch->length << 2; |
| 440 | } |
| 441 | |
| 442 | static void |
| 443 | SwapTouchInfo(DeviceIntPtr dev, xXITouchInfo * touch) |
| 444 | { |
| 445 | swaps(&touch->type)do { if (sizeof(*(&touch->type)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&touch->type) & 1) && ((uintptr_t)(&touch->type) & 1) == 0 ) *(&touch->type) = lswaps(*(&touch->type)); else swap_uint16((uint16_t *)(&touch->type)); } while (0); |
| 446 | swaps(&touch->length)do { if (sizeof(*(&touch->length)) != 2) wrong_size(); if (__builtin_constant_p((uintptr_t)(&touch->length) & 1) && ((uintptr_t)(&touch->length) & 1) == 0) *(&touch->length) = lswaps(*(&touch->length )); else swap_uint16((uint16_t *)(&touch->length)); } while (0); |
| 447 | swaps(&touch->sourceid)do { if (sizeof(*(&touch->sourceid)) != 2) wrong_size( ); if (__builtin_constant_p((uintptr_t)(&touch->sourceid ) & 1) && ((uintptr_t)(&touch->sourceid) & 1) == 0) *(&touch->sourceid) = lswaps(*(&touch-> sourceid)); else swap_uint16((uint16_t *)(&touch->sourceid )); } while (0); |
| 448 | } |
| 449 | |
| 450 | int |
| 451 | GetDeviceUse(DeviceIntPtr dev, uint16_t * attachment) |
| 452 | { |
| 453 | DeviceIntPtr master = GetMaster(dev, MASTER_ATTACHED4); |
| 454 | int use; |
| 455 | |
| 456 | if (IsMaster(dev)) { |
| 457 | DeviceIntPtr paired = GetPairedDevice(dev); |
| 458 | |
| 459 | use = IsPointerDevice(dev) ? XIMasterPointer1 : XIMasterKeyboard2; |
| 460 | *attachment = (paired ? paired->id : 0); |
| 461 | } |
| 462 | else if (!IsFloating(dev)) { |
| 463 | use = IsPointerDevice(master) ? XISlavePointer3 : XISlaveKeyboard4; |
| 464 | *attachment = master->id; |
| 465 | } |
| 466 | else |
| 467 | use = XIFloatingSlave5; |
| 468 | |
| 469 | return use; |
| 470 | } |
| 471 | |
| 472 | /** |
| 473 | * Write the info for device dev into the buffer pointed to by info. |
| 474 | * |
| 475 | * @return The number of bytes used. |
| 476 | */ |
| 477 | static int |
| 478 | ListDeviceInfo(ClientPtr client, DeviceIntPtr dev, xXIDeviceInfo * info) |
| 479 | { |
| 480 | char *any = (char *) &info[1]; |
| 481 | int len = 0, total_len = 0; |
| 482 | |
| 483 | info->deviceid = dev->id; |
| 484 | info->use = GetDeviceUse(dev, &info->attachment); |
| 485 | info->num_classes = 0; |
| 486 | info->name_len = strlen(dev->name); |
| 487 | info->enabled = dev->enabled; |
| 488 | total_len = sizeof(xXIDeviceInfo); |
| 489 | |
| 490 | len = pad_to_int32(info->name_len); |
| 491 | memset(any, 0, len)__builtin___memset_chk (any, 0, len, __builtin_object_size (any , 0)); |
| 492 | strncpy(any, dev->name, info->name_len)__builtin___strncpy_chk (any, dev->name, info->name_len , __builtin_object_size (any, 2 > 1 ? 1 : 0)); |
| 493 | any += len; |
| 494 | total_len += len; |
| 495 | |
| 496 | total_len += ListDeviceClasses(client, dev, any, &info->num_classes); |
| 497 | return total_len; |
| 498 | } |
| 499 | |
| 500 | /** |
| 501 | * Write the class info of the device into the memory pointed to by any, set |
| 502 | * nclasses to the number of classes in total and return the number of bytes |
| 503 | * written. |
| 504 | */ |
| 505 | int |
| 506 | ListDeviceClasses(ClientPtr client, DeviceIntPtr dev, |
| 507 | char *any, uint16_t * nclasses) |
| 508 | { |
| 509 | int total_len = 0; |
| 510 | int len; |
| 511 | int i; |
| 512 | int rc; |
| 513 | |
| 514 | /* Check if the current device state should be suppressed */ |
| 515 | rc = XaceHook(XACE_DEVICE_ACCESS3, client, dev, DixReadAccess(1<<0)); |
| 516 | |
| 517 | if (dev->button) { |
| 518 | (*nclasses)++; |
| 519 | len = ListButtonInfo(dev, (xXIButtonInfo *) any, rc == Success0); |
| 520 | any += len; |
| 521 | total_len += len; |
| 522 | } |
| 523 | |
| 524 | if (dev->key) { |
| 525 | (*nclasses)++; |
| 526 | len = ListKeyInfo(dev, (xXIKeyInfo *) any); |
| 527 | any += len; |
| 528 | total_len += len; |
| 529 | } |
| 530 | |
| 531 | for (i = 0; dev->valuator && i < dev->valuator->numAxes; i++) { |
| 532 | (*nclasses)++; |
| 533 | len = ListValuatorInfo(dev, (xXIValuatorInfo *) any, i, rc == Success0); |
| 534 | any += len; |
| 535 | total_len += len; |
| 536 | } |
| 537 | |
| 538 | for (i = 0; dev->valuator && i < dev->valuator->numAxes; i++) { |
| 539 | len = ListScrollInfo(dev, (xXIScrollInfo *) any, i); |
| 540 | if (len) |
| 541 | (*nclasses)++; |
| 542 | any += len; |
| 543 | total_len += len; |
| 544 | } |
| 545 | |
| 546 | if (dev->touch) { |
| 547 | (*nclasses)++; |
| 548 | len = ListTouchInfo(dev, (xXITouchInfo *) any); |
| 549 | any += len; |
| 550 | total_len += len; |
| 551 | } |
| 552 | |
| 553 | return total_len; |
| 554 | } |
| 555 | |
| 556 | static void |
| 557 | SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo * info) |
| 558 | { |
| 559 | char *any = (char *) &info[1]; |
| 560 | int i; |
| 561 | |
| 562 | /* Skip over name */ |
| 563 | any += pad_to_int32(info->name_len); |
| 564 | |
| 565 | for (i = 0; i < info->num_classes; i++) { |
| 566 | int len = ((xXIAnyInfo *) any)->length; |
| 567 | |
| 568 | switch (((xXIAnyInfo *) any)->type) { |
| 569 | case XIButtonClass1: |
| 570 | SwapButtonInfo(dev, (xXIButtonInfo *) any); |
| 571 | break; |
| 572 | case XIKeyClass0: |
| 573 | SwapKeyInfo(dev, (xXIKeyInfo *) any); |
| 574 | break; |
| 575 | case XIValuatorClass2: |
| 576 | SwapValuatorInfo(dev, (xXIValuatorInfo *) any); |
| 577 | break; |
| 578 | case XIScrollClass3: |
| 579 | SwapScrollInfo(dev, (xXIScrollInfo *) any); |
| 580 | break; |
| 581 | case XITouchClass8: |
| 582 | SwapTouchInfo(dev, (xXITouchInfo *) any); |
| 583 | break; |
| 584 | |
| 585 | } |
| 586 | |
| 587 | any += len * 4; |
| 588 | } |
| 589 | |
| 590 | swaps(&info->deviceid)do { if (sizeof(*(&info->deviceid)) != 2) wrong_size() ; if (__builtin_constant_p((uintptr_t)(&info->deviceid ) & 1) && ((uintptr_t)(&info->deviceid) & 1) == 0) *(&info->deviceid) = lswaps(*(&info-> deviceid)); else swap_uint16((uint16_t *)(&info->deviceid )); } while (0); |
| 591 | swaps(&info->use)do { if (sizeof(*(&info->use)) != 2) wrong_size(); if ( __builtin_constant_p((uintptr_t)(&info->use) & 1) && ((uintptr_t)(&info->use) & 1) == 0) *(&info-> use) = lswaps(*(&info->use)); else swap_uint16((uint16_t *)(&info->use)); } while (0); |
| 592 | swaps(&info->attachment)do { if (sizeof(*(&info->attachment)) != 2) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->attachment ) & 1) && ((uintptr_t)(&info->attachment) & 1) == 0) *(&info->attachment) = lswaps(*(&info-> attachment)); else swap_uint16((uint16_t *)(&info->attachment )); } while (0); |
| 593 | swaps(&info->num_classes)do { if (sizeof(*(&info->num_classes)) != 2) wrong_size (); if (__builtin_constant_p((uintptr_t)(&info->num_classes ) & 1) && ((uintptr_t)(&info->num_classes) & 1) == 0) *(&info->num_classes) = lswaps(*(& info->num_classes)); else swap_uint16((uint16_t *)(&info ->num_classes)); } while (0); |
| 594 | swaps(&info->name_len)do { if (sizeof(*(&info->name_len)) != 2) wrong_size() ; if (__builtin_constant_p((uintptr_t)(&info->name_len ) & 1) && ((uintptr_t)(&info->name_len) & 1) == 0) *(&info->name_len) = lswaps(*(&info-> name_len)); else swap_uint16((uint16_t *)(&info->name_len )); } while (0); |
| 595 | |
| 596 | } |