henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | // Registry configuration wrapers class implementation |
| 12 | // |
| 13 | // Change made by S. Ganesh - ganesh@google.com: |
| 14 | // Use SHQueryValueEx instead of RegQueryValueEx throughout. |
| 15 | // A call to the SHLWAPI function is essentially a call to the standard |
| 16 | // function but with post-processing: |
| 17 | // * to fix REG_SZ or REG_EXPAND_SZ data that is not properly null-terminated; |
| 18 | // * to expand REG_EXPAND_SZ data. |
| 19 | |
| 20 | #include "webrtc/base/win32regkey.h" |
| 21 | |
| 22 | #include <shlwapi.h> |
| 23 | |
| 24 | #include "webrtc/base/common.h" |
| 25 | #include "webrtc/base/logging.h" |
| 26 | #include "webrtc/base/scoped_ptr.h" |
| 27 | |
| 28 | namespace rtc { |
| 29 | |
| 30 | RegKey::RegKey() { |
| 31 | h_key_ = NULL; |
| 32 | } |
| 33 | |
| 34 | RegKey::~RegKey() { |
| 35 | Close(); |
| 36 | } |
| 37 | |
| 38 | HRESULT RegKey::Create(HKEY parent_key, const wchar_t* key_name) { |
| 39 | return Create(parent_key, |
| 40 | key_name, |
| 41 | REG_NONE, |
| 42 | REG_OPTION_NON_VOLATILE, |
| 43 | KEY_ALL_ACCESS, |
| 44 | NULL, |
| 45 | NULL); |
| 46 | } |
| 47 | |
| 48 | HRESULT RegKey::Open(HKEY parent_key, const wchar_t* key_name) { |
| 49 | return Open(parent_key, key_name, KEY_ALL_ACCESS); |
| 50 | } |
| 51 | |
| 52 | bool RegKey::HasValue(const TCHAR* value_name) const { |
| 53 | return (ERROR_SUCCESS == ::RegQueryValueEx(h_key_, value_name, NULL, |
| 54 | NULL, NULL, NULL)); |
| 55 | } |
| 56 | |
| 57 | HRESULT RegKey::SetValue(const wchar_t* full_key_name, |
| 58 | const wchar_t* value_name, |
| 59 | DWORD value) { |
| 60 | ASSERT(full_key_name != NULL); |
| 61 | |
| 62 | return SetValueStaticHelper(full_key_name, value_name, REG_DWORD, &value); |
| 63 | } |
| 64 | |
| 65 | HRESULT RegKey::SetValue(const wchar_t* full_key_name, |
| 66 | const wchar_t* value_name, |
| 67 | DWORD64 value) { |
| 68 | ASSERT(full_key_name != NULL); |
| 69 | |
| 70 | return SetValueStaticHelper(full_key_name, value_name, REG_QWORD, &value); |
| 71 | } |
| 72 | |
| 73 | HRESULT RegKey::SetValue(const wchar_t* full_key_name, |
| 74 | const wchar_t* value_name, |
| 75 | float value) { |
| 76 | ASSERT(full_key_name != NULL); |
| 77 | |
| 78 | return SetValueStaticHelper(full_key_name, value_name, |
| 79 | REG_BINARY, &value, sizeof(value)); |
| 80 | } |
| 81 | |
| 82 | HRESULT RegKey::SetValue(const wchar_t* full_key_name, |
| 83 | const wchar_t* value_name, |
| 84 | double value) { |
| 85 | ASSERT(full_key_name != NULL); |
| 86 | |
| 87 | return SetValueStaticHelper(full_key_name, value_name, |
| 88 | REG_BINARY, &value, sizeof(value)); |
| 89 | } |
| 90 | |
| 91 | HRESULT RegKey::SetValue(const wchar_t* full_key_name, |
| 92 | const wchar_t* value_name, |
| 93 | const TCHAR* value) { |
| 94 | ASSERT(full_key_name != NULL); |
| 95 | ASSERT(value != NULL); |
| 96 | |
| 97 | return SetValueStaticHelper(full_key_name, value_name, |
| 98 | REG_SZ, const_cast<wchar_t*>(value)); |
| 99 | } |
| 100 | |
| 101 | HRESULT RegKey::SetValue(const wchar_t* full_key_name, |
| 102 | const wchar_t* value_name, |
| 103 | const uint8* value, |
| 104 | DWORD byte_count) { |
| 105 | ASSERT(full_key_name != NULL); |
| 106 | |
| 107 | return SetValueStaticHelper(full_key_name, value_name, REG_BINARY, |
| 108 | const_cast<uint8*>(value), byte_count); |
| 109 | } |
| 110 | |
| 111 | HRESULT RegKey::SetValueMultiSZ(const wchar_t* full_key_name, |
| 112 | const wchar_t* value_name, |
| 113 | const uint8* value, |
| 114 | DWORD byte_count) { |
| 115 | ASSERT(full_key_name != NULL); |
| 116 | |
| 117 | return SetValueStaticHelper(full_key_name, value_name, REG_MULTI_SZ, |
| 118 | const_cast<uint8*>(value), byte_count); |
| 119 | } |
| 120 | |
| 121 | HRESULT RegKey::GetValue(const wchar_t* full_key_name, |
| 122 | const wchar_t* value_name, |
| 123 | DWORD* value) { |
| 124 | ASSERT(full_key_name != NULL); |
| 125 | ASSERT(value != NULL); |
| 126 | |
| 127 | return GetValueStaticHelper(full_key_name, value_name, REG_DWORD, value); |
| 128 | } |
| 129 | |
| 130 | HRESULT RegKey::GetValue(const wchar_t* full_key_name, |
| 131 | const wchar_t* value_name, |
| 132 | DWORD64* value) { |
| 133 | ASSERT(full_key_name != NULL); |
| 134 | ASSERT(value != NULL); |
| 135 | |
| 136 | return GetValueStaticHelper(full_key_name, value_name, REG_QWORD, value); |
| 137 | } |
| 138 | |
| 139 | HRESULT RegKey::GetValue(const wchar_t* full_key_name, |
| 140 | const wchar_t* value_name, |
| 141 | float* value) { |
| 142 | ASSERT(value != NULL); |
| 143 | ASSERT(full_key_name != NULL); |
| 144 | |
| 145 | DWORD byte_count = 0; |
| 146 | scoped_ptr<byte[]> buffer; |
| 147 | HRESULT hr = GetValueStaticHelper(full_key_name, value_name, |
| 148 | REG_BINARY, buffer.accept(), &byte_count); |
| 149 | if (SUCCEEDED(hr)) { |
| 150 | ASSERT(byte_count == sizeof(*value)); |
| 151 | if (byte_count == sizeof(*value)) { |
| 152 | *value = *reinterpret_cast<float*>(buffer.get()); |
| 153 | } |
| 154 | } |
| 155 | return hr; |
| 156 | } |
| 157 | |
| 158 | HRESULT RegKey::GetValue(const wchar_t* full_key_name, |
| 159 | const wchar_t* value_name, |
| 160 | double* value) { |
| 161 | ASSERT(value != NULL); |
| 162 | ASSERT(full_key_name != NULL); |
| 163 | |
| 164 | DWORD byte_count = 0; |
| 165 | scoped_ptr<byte[]> buffer; |
| 166 | HRESULT hr = GetValueStaticHelper(full_key_name, value_name, |
| 167 | REG_BINARY, buffer.accept(), &byte_count); |
| 168 | if (SUCCEEDED(hr)) { |
| 169 | ASSERT(byte_count == sizeof(*value)); |
| 170 | if (byte_count == sizeof(*value)) { |
| 171 | *value = *reinterpret_cast<double*>(buffer.get()); |
| 172 | } |
| 173 | } |
| 174 | return hr; |
| 175 | } |
| 176 | |
| 177 | HRESULT RegKey::GetValue(const wchar_t* full_key_name, |
| 178 | const wchar_t* value_name, |
| 179 | wchar_t** value) { |
| 180 | ASSERT(full_key_name != NULL); |
| 181 | ASSERT(value != NULL); |
| 182 | |
| 183 | return GetValueStaticHelper(full_key_name, value_name, REG_SZ, value); |
| 184 | } |
| 185 | |
| 186 | HRESULT RegKey::GetValue(const wchar_t* full_key_name, |
| 187 | const wchar_t* value_name, |
| 188 | std::wstring* value) { |
| 189 | ASSERT(full_key_name != NULL); |
| 190 | ASSERT(value != NULL); |
| 191 | |
| 192 | scoped_ptr<wchar_t[]> buffer; |
| 193 | HRESULT hr = RegKey::GetValue(full_key_name, value_name, buffer.accept()); |
| 194 | if (SUCCEEDED(hr)) { |
| 195 | value->assign(buffer.get()); |
| 196 | } |
| 197 | return hr; |
| 198 | } |
| 199 | |
| 200 | HRESULT RegKey::GetValue(const wchar_t* full_key_name, |
| 201 | const wchar_t* value_name, |
| 202 | std::vector<std::wstring>* value) { |
| 203 | ASSERT(full_key_name != NULL); |
| 204 | ASSERT(value != NULL); |
| 205 | |
| 206 | return GetValueStaticHelper(full_key_name, value_name, REG_MULTI_SZ, value); |
| 207 | } |
| 208 | |
| 209 | HRESULT RegKey::GetValue(const wchar_t* full_key_name, |
| 210 | const wchar_t* value_name, |
| 211 | uint8** value, |
| 212 | DWORD* byte_count) { |
| 213 | ASSERT(full_key_name != NULL); |
| 214 | ASSERT(value != NULL); |
| 215 | ASSERT(byte_count != NULL); |
| 216 | |
| 217 | return GetValueStaticHelper(full_key_name, value_name, |
| 218 | REG_BINARY, value, byte_count); |
| 219 | } |
| 220 | |
| 221 | HRESULT RegKey::DeleteSubKey(const wchar_t* key_name) { |
| 222 | ASSERT(key_name != NULL); |
| 223 | ASSERT(h_key_ != NULL); |
| 224 | |
| 225 | LONG res = ::RegDeleteKey(h_key_, key_name); |
| 226 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 227 | if (hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND) || |
| 228 | hr == HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND)) { |
| 229 | hr = S_FALSE; |
| 230 | } |
| 231 | return hr; |
| 232 | } |
| 233 | |
| 234 | HRESULT RegKey::DeleteValue(const wchar_t* value_name) { |
| 235 | ASSERT(h_key_ != NULL); |
| 236 | |
| 237 | LONG res = ::RegDeleteValue(h_key_, value_name); |
| 238 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 239 | if (hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND) || |
| 240 | hr == HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND)) { |
| 241 | hr = S_FALSE; |
| 242 | } |
| 243 | return hr; |
| 244 | } |
| 245 | |
| 246 | HRESULT RegKey::Close() { |
| 247 | HRESULT hr = S_OK; |
| 248 | if (h_key_ != NULL) { |
| 249 | LONG res = ::RegCloseKey(h_key_); |
| 250 | hr = HRESULT_FROM_WIN32(res); |
| 251 | h_key_ = NULL; |
| 252 | } |
| 253 | return hr; |
| 254 | } |
| 255 | |
| 256 | HRESULT RegKey::Create(HKEY parent_key, |
| 257 | const wchar_t* key_name, |
| 258 | wchar_t* lpszClass, |
| 259 | DWORD options, |
| 260 | REGSAM sam_desired, |
| 261 | LPSECURITY_ATTRIBUTES lpSecAttr, |
| 262 | LPDWORD lpdwDisposition) { |
| 263 | ASSERT(key_name != NULL); |
| 264 | ASSERT(parent_key != NULL); |
| 265 | |
| 266 | DWORD dw = 0; |
| 267 | HKEY h_key = NULL; |
| 268 | LONG res = ::RegCreateKeyEx(parent_key, key_name, 0, lpszClass, options, |
| 269 | sam_desired, lpSecAttr, &h_key, &dw); |
| 270 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 271 | |
| 272 | if (lpdwDisposition) { |
| 273 | *lpdwDisposition = dw; |
| 274 | } |
| 275 | |
| 276 | // we have to close the currently opened key |
| 277 | // before replacing it with the new one |
| 278 | if (hr == S_OK) { |
| 279 | hr = Close(); |
| 280 | ASSERT(hr == S_OK); |
| 281 | h_key_ = h_key; |
| 282 | } |
| 283 | return hr; |
| 284 | } |
| 285 | |
| 286 | HRESULT RegKey::Open(HKEY parent_key, |
| 287 | const wchar_t* key_name, |
| 288 | REGSAM sam_desired) { |
| 289 | ASSERT(key_name != NULL); |
| 290 | ASSERT(parent_key != NULL); |
| 291 | |
| 292 | HKEY h_key = NULL; |
| 293 | LONG res = ::RegOpenKeyEx(parent_key, key_name, 0, sam_desired, &h_key); |
| 294 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 295 | |
| 296 | // we have to close the currently opened key |
| 297 | // before replacing it with the new one |
| 298 | if (hr == S_OK) { |
| 299 | // close the currently opened key if any |
| 300 | hr = Close(); |
| 301 | ASSERT(hr == S_OK); |
| 302 | h_key_ = h_key; |
| 303 | } |
| 304 | return hr; |
| 305 | } |
| 306 | |
| 307 | // save the key and all of its subkeys and values to a file |
| 308 | HRESULT RegKey::Save(const wchar_t* full_key_name, const wchar_t* file_name) { |
| 309 | ASSERT(full_key_name != NULL); |
| 310 | ASSERT(file_name != NULL); |
| 311 | |
| 312 | std::wstring key_name(full_key_name); |
| 313 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 314 | if (!h_key) { |
| 315 | return E_FAIL; |
| 316 | } |
| 317 | |
| 318 | RegKey key; |
| 319 | HRESULT hr = key.Open(h_key, key_name.c_str(), KEY_READ); |
| 320 | if (FAILED(hr)) { |
| 321 | return hr; |
| 322 | } |
| 323 | |
| 324 | AdjustCurrentProcessPrivilege(SE_BACKUP_NAME, true); |
| 325 | LONG res = ::RegSaveKey(key.h_key_, file_name, NULL); |
| 326 | AdjustCurrentProcessPrivilege(SE_BACKUP_NAME, false); |
| 327 | |
| 328 | return HRESULT_FROM_WIN32(res); |
| 329 | } |
| 330 | |
| 331 | // restore the key and all of its subkeys and values which are saved into a file |
| 332 | HRESULT RegKey::Restore(const wchar_t* full_key_name, |
| 333 | const wchar_t* file_name) { |
| 334 | ASSERT(full_key_name != NULL); |
| 335 | ASSERT(file_name != NULL); |
| 336 | |
| 337 | std::wstring key_name(full_key_name); |
| 338 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 339 | if (!h_key) { |
| 340 | return E_FAIL; |
| 341 | } |
| 342 | |
| 343 | RegKey key; |
| 344 | HRESULT hr = key.Open(h_key, key_name.c_str(), KEY_WRITE); |
| 345 | if (FAILED(hr)) { |
| 346 | return hr; |
| 347 | } |
| 348 | |
| 349 | AdjustCurrentProcessPrivilege(SE_RESTORE_NAME, true); |
| 350 | LONG res = ::RegRestoreKey(key.h_key_, file_name, REG_FORCE_RESTORE); |
| 351 | AdjustCurrentProcessPrivilege(SE_RESTORE_NAME, false); |
| 352 | |
| 353 | return HRESULT_FROM_WIN32(res); |
| 354 | } |
| 355 | |
| 356 | // check if the current key has the specified subkey |
| 357 | bool RegKey::HasSubkey(const wchar_t* key_name) const { |
| 358 | ASSERT(key_name != NULL); |
| 359 | |
| 360 | RegKey key; |
| 361 | HRESULT hr = key.Open(h_key_, key_name, KEY_READ); |
| 362 | key.Close(); |
| 363 | return hr == S_OK; |
| 364 | } |
| 365 | |
| 366 | // static flush key |
| 367 | HRESULT RegKey::FlushKey(const wchar_t* full_key_name) { |
| 368 | ASSERT(full_key_name != NULL); |
| 369 | |
| 370 | HRESULT hr = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND); |
| 371 | // get the root HKEY |
| 372 | std::wstring key_name(full_key_name); |
| 373 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 374 | |
| 375 | if (h_key != NULL) { |
| 376 | LONG res = ::RegFlushKey(h_key); |
| 377 | hr = HRESULT_FROM_WIN32(res); |
| 378 | } |
| 379 | return hr; |
| 380 | } |
| 381 | |
| 382 | // static SET helper |
| 383 | HRESULT RegKey::SetValueStaticHelper(const wchar_t* full_key_name, |
| 384 | const wchar_t* value_name, |
| 385 | DWORD type, |
| 386 | LPVOID value, |
| 387 | DWORD byte_count) { |
| 388 | ASSERT(full_key_name != NULL); |
| 389 | |
| 390 | HRESULT hr = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND); |
| 391 | // get the root HKEY |
| 392 | std::wstring key_name(full_key_name); |
| 393 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 394 | |
| 395 | if (h_key != NULL) { |
| 396 | RegKey key; |
| 397 | hr = key.Create(h_key, key_name.c_str()); |
| 398 | if (hr == S_OK) { |
| 399 | switch (type) { |
| 400 | case REG_DWORD: |
| 401 | hr = key.SetValue(value_name, *(static_cast<DWORD*>(value))); |
| 402 | break; |
| 403 | case REG_QWORD: |
| 404 | hr = key.SetValue(value_name, *(static_cast<DWORD64*>(value))); |
| 405 | break; |
| 406 | case REG_SZ: |
| 407 | hr = key.SetValue(value_name, static_cast<const wchar_t*>(value)); |
| 408 | break; |
| 409 | case REG_BINARY: |
| 410 | hr = key.SetValue(value_name, static_cast<const uint8*>(value), |
| 411 | byte_count); |
| 412 | break; |
| 413 | case REG_MULTI_SZ: |
| 414 | hr = key.SetValue(value_name, static_cast<const uint8*>(value), |
| 415 | byte_count, type); |
| 416 | break; |
| 417 | default: |
| 418 | ASSERT(false); |
| 419 | hr = HRESULT_FROM_WIN32(ERROR_DATATYPE_MISMATCH); |
| 420 | break; |
| 421 | } |
| 422 | // close the key after writing |
| 423 | HRESULT temp_hr = key.Close(); |
| 424 | if (hr == S_OK) { |
| 425 | hr = temp_hr; |
| 426 | } |
| 427 | } |
| 428 | } |
| 429 | return hr; |
| 430 | } |
| 431 | |
| 432 | // static GET helper |
| 433 | HRESULT RegKey::GetValueStaticHelper(const wchar_t* full_key_name, |
| 434 | const wchar_t* value_name, |
| 435 | DWORD type, |
| 436 | LPVOID value, |
| 437 | DWORD* byte_count) { |
| 438 | ASSERT(full_key_name != NULL); |
| 439 | |
| 440 | HRESULT hr = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND); |
| 441 | // get the root HKEY |
| 442 | std::wstring key_name(full_key_name); |
| 443 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 444 | |
| 445 | if (h_key != NULL) { |
| 446 | RegKey key; |
| 447 | hr = key.Open(h_key, key_name.c_str(), KEY_READ); |
| 448 | if (hr == S_OK) { |
| 449 | switch (type) { |
| 450 | case REG_DWORD: |
| 451 | hr = key.GetValue(value_name, reinterpret_cast<DWORD*>(value)); |
| 452 | break; |
| 453 | case REG_QWORD: |
| 454 | hr = key.GetValue(value_name, reinterpret_cast<DWORD64*>(value)); |
| 455 | break; |
| 456 | case REG_SZ: |
| 457 | hr = key.GetValue(value_name, reinterpret_cast<wchar_t**>(value)); |
| 458 | break; |
| 459 | case REG_MULTI_SZ: |
| 460 | hr = key.GetValue(value_name, reinterpret_cast< |
| 461 | std::vector<std::wstring>*>(value)); |
| 462 | break; |
| 463 | case REG_BINARY: |
| 464 | hr = key.GetValue(value_name, reinterpret_cast<uint8**>(value), |
| 465 | byte_count); |
| 466 | break; |
| 467 | default: |
| 468 | ASSERT(false); |
| 469 | hr = HRESULT_FROM_WIN32(ERROR_DATATYPE_MISMATCH); |
| 470 | break; |
| 471 | } |
| 472 | // close the key after writing |
| 473 | HRESULT temp_hr = key.Close(); |
| 474 | if (hr == S_OK) { |
| 475 | hr = temp_hr; |
| 476 | } |
| 477 | } |
| 478 | } |
| 479 | return hr; |
| 480 | } |
| 481 | |
| 482 | // GET helper |
| 483 | HRESULT RegKey::GetValueHelper(const wchar_t* value_name, |
| 484 | DWORD* type, |
| 485 | uint8** value, |
| 486 | DWORD* byte_count) const { |
| 487 | ASSERT(byte_count != NULL); |
| 488 | ASSERT(value != NULL); |
| 489 | ASSERT(type != NULL); |
| 490 | |
| 491 | // init return buffer |
| 492 | *value = NULL; |
| 493 | |
| 494 | // get the size of the return data buffer |
| 495 | LONG res = ::SHQueryValueEx(h_key_, value_name, NULL, type, NULL, byte_count); |
| 496 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 497 | |
| 498 | if (hr == S_OK) { |
| 499 | // if the value length is 0, nothing to do |
| 500 | if (*byte_count != 0) { |
| 501 | // allocate the buffer |
| 502 | *value = new byte[*byte_count]; |
| 503 | ASSERT(*value != NULL); |
| 504 | |
| 505 | // make the call again to get the data |
| 506 | res = ::SHQueryValueEx(h_key_, value_name, NULL, |
| 507 | type, *value, byte_count); |
| 508 | hr = HRESULT_FROM_WIN32(res); |
| 509 | ASSERT(hr == S_OK); |
| 510 | } |
| 511 | } |
| 512 | return hr; |
| 513 | } |
| 514 | |
| 515 | // Int32 Get |
| 516 | HRESULT RegKey::GetValue(const wchar_t* value_name, DWORD* value) const { |
| 517 | ASSERT(value != NULL); |
| 518 | |
| 519 | DWORD type = 0; |
| 520 | DWORD byte_count = sizeof(DWORD); |
| 521 | LONG res = ::SHQueryValueEx(h_key_, value_name, NULL, &type, |
| 522 | value, &byte_count); |
| 523 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 524 | ASSERT((hr != S_OK) || (type == REG_DWORD)); |
| 525 | ASSERT((hr != S_OK) || (byte_count == sizeof(DWORD))); |
| 526 | return hr; |
| 527 | } |
| 528 | |
| 529 | // Int64 Get |
| 530 | HRESULT RegKey::GetValue(const wchar_t* value_name, DWORD64* value) const { |
| 531 | ASSERT(value != NULL); |
| 532 | |
| 533 | DWORD type = 0; |
| 534 | DWORD byte_count = sizeof(DWORD64); |
| 535 | LONG res = ::SHQueryValueEx(h_key_, value_name, NULL, &type, |
| 536 | value, &byte_count); |
| 537 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 538 | ASSERT((hr != S_OK) || (type == REG_QWORD)); |
| 539 | ASSERT((hr != S_OK) || (byte_count == sizeof(DWORD64))); |
| 540 | return hr; |
| 541 | } |
| 542 | |
| 543 | // String Get |
| 544 | HRESULT RegKey::GetValue(const wchar_t* value_name, wchar_t** value) const { |
| 545 | ASSERT(value != NULL); |
| 546 | |
| 547 | DWORD byte_count = 0; |
| 548 | DWORD type = 0; |
| 549 | |
| 550 | // first get the size of the string buffer |
| 551 | LONG res = ::SHQueryValueEx(h_key_, value_name, NULL, |
| 552 | &type, NULL, &byte_count); |
| 553 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 554 | |
| 555 | if (hr == S_OK) { |
| 556 | // allocate room for the string and a terminating \0 |
| 557 | *value = new wchar_t[(byte_count / sizeof(wchar_t)) + 1]; |
| 558 | |
| 559 | if ((*value) != NULL) { |
| 560 | if (byte_count != 0) { |
| 561 | // make the call again |
| 562 | res = ::SHQueryValueEx(h_key_, value_name, NULL, &type, |
| 563 | *value, &byte_count); |
| 564 | hr = HRESULT_FROM_WIN32(res); |
| 565 | } else { |
| 566 | (*value)[0] = L'\0'; |
| 567 | } |
| 568 | |
| 569 | ASSERT((hr != S_OK) || (type == REG_SZ) || |
| 570 | (type == REG_MULTI_SZ) || (type == REG_EXPAND_SZ)); |
| 571 | } else { |
| 572 | hr = E_OUTOFMEMORY; |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | return hr; |
| 577 | } |
| 578 | |
| 579 | // get a string value |
| 580 | HRESULT RegKey::GetValue(const wchar_t* value_name, std::wstring* value) const { |
| 581 | ASSERT(value != NULL); |
| 582 | |
| 583 | DWORD byte_count = 0; |
| 584 | DWORD type = 0; |
| 585 | |
| 586 | // first get the size of the string buffer |
| 587 | LONG res = ::SHQueryValueEx(h_key_, value_name, NULL, |
| 588 | &type, NULL, &byte_count); |
| 589 | HRESULT hr = HRESULT_FROM_WIN32(res); |
| 590 | |
| 591 | if (hr == S_OK) { |
| 592 | if (byte_count != 0) { |
| 593 | // Allocate some memory and make the call again |
| 594 | value->resize(byte_count / sizeof(wchar_t) + 1); |
| 595 | res = ::SHQueryValueEx(h_key_, value_name, NULL, &type, |
| 596 | &value->at(0), &byte_count); |
| 597 | hr = HRESULT_FROM_WIN32(res); |
| 598 | value->resize(wcslen(value->data())); |
| 599 | } else { |
| 600 | value->clear(); |
| 601 | } |
| 602 | |
| 603 | ASSERT((hr != S_OK) || (type == REG_SZ) || |
| 604 | (type == REG_MULTI_SZ) || (type == REG_EXPAND_SZ)); |
| 605 | } |
| 606 | |
| 607 | return hr; |
| 608 | } |
| 609 | |
| 610 | // convert REG_MULTI_SZ bytes to string array |
| 611 | HRESULT RegKey::MultiSZBytesToStringArray(const uint8* buffer, |
| 612 | DWORD byte_count, |
| 613 | std::vector<std::wstring>* value) { |
| 614 | ASSERT(buffer != NULL); |
| 615 | ASSERT(value != NULL); |
| 616 | |
| 617 | const wchar_t* data = reinterpret_cast<const wchar_t*>(buffer); |
| 618 | DWORD data_len = byte_count / sizeof(wchar_t); |
| 619 | value->clear(); |
| 620 | if (data_len > 1) { |
| 621 | // must be terminated by two null characters |
| 622 | if (data[data_len - 1] != 0 || data[data_len - 2] != 0) { |
| 623 | return E_INVALIDARG; |
| 624 | } |
| 625 | |
| 626 | // put null-terminated strings into arrays |
| 627 | while (*data) { |
| 628 | std::wstring str(data); |
| 629 | value->push_back(str); |
| 630 | data += str.length() + 1; |
| 631 | } |
| 632 | } |
| 633 | return S_OK; |
| 634 | } |
| 635 | |
| 636 | // get a std::vector<std::wstring> value from REG_MULTI_SZ type |
| 637 | HRESULT RegKey::GetValue(const wchar_t* value_name, |
| 638 | std::vector<std::wstring>* value) const { |
| 639 | ASSERT(value != NULL); |
| 640 | |
| 641 | DWORD byte_count = 0; |
| 642 | DWORD type = 0; |
| 643 | uint8* buffer = 0; |
| 644 | |
| 645 | // first get the size of the buffer |
| 646 | HRESULT hr = GetValueHelper(value_name, &type, &buffer, &byte_count); |
| 647 | ASSERT((hr != S_OK) || (type == REG_MULTI_SZ)); |
| 648 | |
| 649 | if (SUCCEEDED(hr)) { |
| 650 | hr = MultiSZBytesToStringArray(buffer, byte_count, value); |
| 651 | } |
| 652 | |
| 653 | return hr; |
| 654 | } |
| 655 | |
| 656 | // Binary data Get |
| 657 | HRESULT RegKey::GetValue(const wchar_t* value_name, |
| 658 | uint8** value, |
| 659 | DWORD* byte_count) const { |
| 660 | ASSERT(byte_count != NULL); |
| 661 | ASSERT(value != NULL); |
| 662 | |
| 663 | DWORD type = 0; |
| 664 | HRESULT hr = GetValueHelper(value_name, &type, value, byte_count); |
| 665 | ASSERT((hr != S_OK) || (type == REG_MULTI_SZ) || (type == REG_BINARY)); |
| 666 | return hr; |
| 667 | } |
| 668 | |
| 669 | // Raw data get |
| 670 | HRESULT RegKey::GetValue(const wchar_t* value_name, |
| 671 | uint8** value, |
| 672 | DWORD* byte_count, |
| 673 | DWORD*type) const { |
| 674 | ASSERT(type != NULL); |
| 675 | ASSERT(byte_count != NULL); |
| 676 | ASSERT(value != NULL); |
| 677 | |
| 678 | return GetValueHelper(value_name, type, value, byte_count); |
| 679 | } |
| 680 | |
| 681 | // Int32 set |
| 682 | HRESULT RegKey::SetValue(const wchar_t* value_name, DWORD value) const { |
| 683 | ASSERT(h_key_ != NULL); |
| 684 | |
| 685 | LONG res = ::RegSetValueEx(h_key_, value_name, NULL, REG_DWORD, |
| 686 | reinterpret_cast<const uint8*>(&value), |
| 687 | sizeof(DWORD)); |
| 688 | return HRESULT_FROM_WIN32(res); |
| 689 | } |
| 690 | |
| 691 | // Int64 set |
| 692 | HRESULT RegKey::SetValue(const wchar_t* value_name, DWORD64 value) const { |
| 693 | ASSERT(h_key_ != NULL); |
| 694 | |
| 695 | LONG res = ::RegSetValueEx(h_key_, value_name, NULL, REG_QWORD, |
| 696 | reinterpret_cast<const uint8*>(&value), |
| 697 | sizeof(DWORD64)); |
| 698 | return HRESULT_FROM_WIN32(res); |
| 699 | } |
| 700 | |
| 701 | // String set |
| 702 | HRESULT RegKey::SetValue(const wchar_t* value_name, |
| 703 | const wchar_t* value) const { |
| 704 | ASSERT(value != NULL); |
| 705 | ASSERT(h_key_ != NULL); |
| 706 | |
| 707 | LONG res = ::RegSetValueEx(h_key_, value_name, NULL, REG_SZ, |
| 708 | reinterpret_cast<const uint8*>(value), |
| 709 | (lstrlen(value) + 1) * sizeof(wchar_t)); |
| 710 | return HRESULT_FROM_WIN32(res); |
| 711 | } |
| 712 | |
| 713 | // Binary data set |
| 714 | HRESULT RegKey::SetValue(const wchar_t* value_name, |
| 715 | const uint8* value, |
| 716 | DWORD byte_count) const { |
| 717 | ASSERT(h_key_ != NULL); |
| 718 | |
| 719 | // special case - if 'value' is NULL make sure byte_count is zero |
| 720 | if (value == NULL) { |
| 721 | byte_count = 0; |
| 722 | } |
| 723 | |
| 724 | LONG res = ::RegSetValueEx(h_key_, value_name, NULL, |
| 725 | REG_BINARY, value, byte_count); |
| 726 | return HRESULT_FROM_WIN32(res); |
| 727 | } |
| 728 | |
| 729 | // Raw data set |
| 730 | HRESULT RegKey::SetValue(const wchar_t* value_name, |
| 731 | const uint8* value, |
| 732 | DWORD byte_count, |
| 733 | DWORD type) const { |
| 734 | ASSERT(value != NULL); |
| 735 | ASSERT(h_key_ != NULL); |
| 736 | |
| 737 | LONG res = ::RegSetValueEx(h_key_, value_name, NULL, type, value, byte_count); |
| 738 | return HRESULT_FROM_WIN32(res); |
| 739 | } |
| 740 | |
| 741 | bool RegKey::HasKey(const wchar_t* full_key_name) { |
| 742 | ASSERT(full_key_name != NULL); |
| 743 | |
| 744 | // get the root HKEY |
| 745 | std::wstring key_name(full_key_name); |
| 746 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 747 | |
| 748 | if (h_key != NULL) { |
| 749 | RegKey key; |
| 750 | HRESULT hr = key.Open(h_key, key_name.c_str(), KEY_READ); |
| 751 | key.Close(); |
| 752 | return S_OK == hr; |
| 753 | } |
| 754 | return false; |
| 755 | } |
| 756 | |
| 757 | // static version of HasValue |
| 758 | bool RegKey::HasValue(const wchar_t* full_key_name, const wchar_t* value_name) { |
| 759 | ASSERT(full_key_name != NULL); |
| 760 | |
| 761 | bool has_value = false; |
| 762 | // get the root HKEY |
| 763 | std::wstring key_name(full_key_name); |
| 764 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 765 | |
| 766 | if (h_key != NULL) { |
| 767 | RegKey key; |
| 768 | if (key.Open(h_key, key_name.c_str(), KEY_READ) == S_OK) { |
| 769 | has_value = key.HasValue(value_name); |
| 770 | key.Close(); |
| 771 | } |
| 772 | } |
| 773 | return has_value; |
| 774 | } |
| 775 | |
| 776 | HRESULT RegKey::GetValueType(const wchar_t* full_key_name, |
| 777 | const wchar_t* value_name, |
| 778 | DWORD* value_type) { |
| 779 | ASSERT(full_key_name != NULL); |
| 780 | ASSERT(value_type != NULL); |
| 781 | |
| 782 | *value_type = REG_NONE; |
| 783 | |
| 784 | std::wstring key_name(full_key_name); |
| 785 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 786 | |
| 787 | RegKey key; |
| 788 | HRESULT hr = key.Open(h_key, key_name.c_str(), KEY_READ); |
| 789 | if (SUCCEEDED(hr)) { |
| 790 | LONG res = ::SHQueryValueEx(key.h_key_, value_name, NULL, value_type, |
| 791 | NULL, NULL); |
| 792 | if (res != ERROR_SUCCESS) { |
| 793 | hr = HRESULT_FROM_WIN32(res); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | return hr; |
| 798 | } |
| 799 | |
| 800 | HRESULT RegKey::DeleteKey(const wchar_t* full_key_name) { |
| 801 | ASSERT(full_key_name != NULL); |
| 802 | |
| 803 | return DeleteKey(full_key_name, true); |
| 804 | } |
| 805 | |
| 806 | HRESULT RegKey::DeleteKey(const wchar_t* full_key_name, bool recursively) { |
| 807 | ASSERT(full_key_name != NULL); |
| 808 | |
| 809 | // need to open the parent key first |
| 810 | // get the root HKEY |
| 811 | std::wstring key_name(full_key_name); |
| 812 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 813 | |
| 814 | // get the parent key |
| 815 | std::wstring parent_key(GetParentKeyInfo(&key_name)); |
| 816 | |
| 817 | RegKey key; |
| 818 | HRESULT hr = key.Open(h_key, parent_key.c_str()); |
| 819 | |
| 820 | if (hr == S_OK) { |
| 821 | hr = recursively ? key.RecurseDeleteSubKey(key_name.c_str()) |
| 822 | : key.DeleteSubKey(key_name.c_str()); |
| 823 | } else if (hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND) || |
| 824 | hr == HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND)) { |
| 825 | hr = S_FALSE; |
| 826 | } |
| 827 | |
| 828 | key.Close(); |
| 829 | return hr; |
| 830 | } |
| 831 | |
| 832 | HRESULT RegKey::DeleteValue(const wchar_t* full_key_name, |
| 833 | const wchar_t* value_name) { |
| 834 | ASSERT(full_key_name != NULL); |
| 835 | |
| 836 | HRESULT hr = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND); |
| 837 | // get the root HKEY |
| 838 | std::wstring key_name(full_key_name); |
| 839 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 840 | |
| 841 | if (h_key != NULL) { |
| 842 | RegKey key; |
| 843 | hr = key.Open(h_key, key_name.c_str()); |
| 844 | if (hr == S_OK) { |
| 845 | hr = key.DeleteValue(value_name); |
| 846 | key.Close(); |
| 847 | } |
| 848 | } |
| 849 | return hr; |
| 850 | } |
| 851 | |
| 852 | HRESULT RegKey::RecurseDeleteSubKey(const wchar_t* key_name) { |
| 853 | ASSERT(key_name != NULL); |
| 854 | |
| 855 | RegKey key; |
| 856 | HRESULT hr = key.Open(h_key_, key_name); |
| 857 | |
| 858 | if (hr == S_OK) { |
| 859 | // enumerate all subkeys of this key and recursivelly delete them |
| 860 | FILETIME time = {0}; |
| 861 | wchar_t key_name_buf[kMaxKeyNameChars] = {0}; |
| 862 | DWORD key_name_buf_size = kMaxKeyNameChars; |
| 863 | while (hr == S_OK && |
| 864 | ::RegEnumKeyEx(key.h_key_, 0, key_name_buf, &key_name_buf_size, |
| 865 | NULL, NULL, NULL, &time) == ERROR_SUCCESS) { |
| 866 | hr = key.RecurseDeleteSubKey(key_name_buf); |
| 867 | |
| 868 | // restore the buffer size |
| 869 | key_name_buf_size = kMaxKeyNameChars; |
| 870 | } |
| 871 | // close the top key |
| 872 | key.Close(); |
| 873 | } |
| 874 | |
| 875 | if (hr == S_OK) { |
| 876 | // the key has no more children keys |
| 877 | // delete the key and all of its values |
| 878 | hr = DeleteSubKey(key_name); |
| 879 | } |
| 880 | |
| 881 | return hr; |
| 882 | } |
| 883 | |
| 884 | HKEY RegKey::GetRootKeyInfo(std::wstring* full_key_name) { |
| 885 | ASSERT(full_key_name != NULL); |
| 886 | |
| 887 | HKEY h_key = NULL; |
| 888 | // get the root HKEY |
| 889 | size_t index = full_key_name->find(L'\\'); |
| 890 | std::wstring root_key; |
| 891 | |
| 892 | if (index == -1) { |
| 893 | root_key = *full_key_name; |
| 894 | *full_key_name = L""; |
| 895 | } else { |
| 896 | root_key = full_key_name->substr(0, index); |
| 897 | *full_key_name = full_key_name->substr(index + 1, |
| 898 | full_key_name->length() - index - 1); |
| 899 | } |
| 900 | |
| 901 | for (std::wstring::iterator iter = root_key.begin(); |
| 902 | iter != root_key.end(); ++iter) { |
| 903 | *iter = toupper(*iter); |
| 904 | } |
| 905 | |
| 906 | if (!root_key.compare(L"HKLM") || |
| 907 | !root_key.compare(L"HKEY_LOCAL_MACHINE")) { |
| 908 | h_key = HKEY_LOCAL_MACHINE; |
| 909 | } else if (!root_key.compare(L"HKCU") || |
| 910 | !root_key.compare(L"HKEY_CURRENT_USER")) { |
| 911 | h_key = HKEY_CURRENT_USER; |
| 912 | } else if (!root_key.compare(L"HKU") || |
| 913 | !root_key.compare(L"HKEY_USERS")) { |
| 914 | h_key = HKEY_USERS; |
| 915 | } else if (!root_key.compare(L"HKCR") || |
| 916 | !root_key.compare(L"HKEY_CLASSES_ROOT")) { |
| 917 | h_key = HKEY_CLASSES_ROOT; |
| 918 | } |
| 919 | |
| 920 | return h_key; |
| 921 | } |
| 922 | |
| 923 | |
| 924 | // Returns true if this key name is 'safe' for deletion |
| 925 | // (doesn't specify a key root) |
| 926 | bool RegKey::SafeKeyNameForDeletion(const wchar_t* key_name) { |
| 927 | ASSERT(key_name != NULL); |
| 928 | std::wstring key(key_name); |
| 929 | |
| 930 | HKEY root_key = GetRootKeyInfo(&key); |
| 931 | |
| 932 | if (!root_key) { |
| 933 | key = key_name; |
| 934 | } |
| 935 | if (key.empty()) { |
| 936 | return false; |
| 937 | } |
| 938 | bool found_subkey = false, backslash_found = false; |
| 939 | for (size_t i = 0 ; i < key.length() ; ++i) { |
| 940 | if (key[i] == L'\\') { |
| 941 | backslash_found = true; |
| 942 | } else if (backslash_found) { |
| 943 | found_subkey = true; |
| 944 | break; |
| 945 | } |
| 946 | } |
| 947 | return (root_key == HKEY_USERS) ? found_subkey : true; |
| 948 | } |
| 949 | |
| 950 | std::wstring RegKey::GetParentKeyInfo(std::wstring* key_name) { |
| 951 | ASSERT(key_name != NULL); |
| 952 | |
| 953 | // get the parent key |
| 954 | size_t index = key_name->rfind(L'\\'); |
| 955 | std::wstring parent_key; |
| 956 | if (index == -1) { |
| 957 | parent_key = L""; |
| 958 | } else { |
| 959 | parent_key = key_name->substr(0, index); |
| 960 | *key_name = key_name->substr(index + 1, key_name->length() - index - 1); |
| 961 | } |
| 962 | |
| 963 | return parent_key; |
| 964 | } |
| 965 | |
| 966 | // get the number of values for this key |
| 967 | uint32 RegKey::GetValueCount() { |
| 968 | DWORD num_values = 0; |
| 969 | |
| 970 | if (ERROR_SUCCESS != ::RegQueryInfoKey( |
| 971 | h_key_, // key handle |
| 972 | NULL, // buffer for class name |
| 973 | NULL, // size of class string |
| 974 | NULL, // reserved |
| 975 | NULL, // number of subkeys |
| 976 | NULL, // longest subkey size |
| 977 | NULL, // longest class string |
| 978 | &num_values, // number of values for this key |
| 979 | NULL, // longest value name |
| 980 | NULL, // longest value data |
| 981 | NULL, // security descriptor |
| 982 | NULL)) { // last write time |
| 983 | ASSERT(false); |
| 984 | } |
| 985 | return num_values; |
| 986 | } |
| 987 | |
| 988 | // Enumerators for the value_names for this key |
| 989 | |
| 990 | // Called to get the value name for the given value name index |
| 991 | // Use GetValueCount() to get the total value_name count for this key |
| 992 | // Returns failure if no key at the specified index |
| 993 | HRESULT RegKey::GetValueNameAt(int index, std::wstring* value_name, |
| 994 | DWORD* type) { |
| 995 | ASSERT(value_name != NULL); |
| 996 | |
| 997 | LONG res = ERROR_SUCCESS; |
| 998 | wchar_t value_name_buf[kMaxValueNameChars] = {0}; |
| 999 | DWORD value_name_buf_size = kMaxValueNameChars; |
| 1000 | res = ::RegEnumValue(h_key_, index, value_name_buf, &value_name_buf_size, |
| 1001 | NULL, type, NULL, NULL); |
| 1002 | |
| 1003 | if (res == ERROR_SUCCESS) { |
| 1004 | value_name->assign(value_name_buf); |
| 1005 | } |
| 1006 | |
| 1007 | return HRESULT_FROM_WIN32(res); |
| 1008 | } |
| 1009 | |
| 1010 | uint32 RegKey::GetSubkeyCount() { |
| 1011 | // number of values for key |
| 1012 | DWORD num_subkeys = 0; |
| 1013 | |
| 1014 | if (ERROR_SUCCESS != ::RegQueryInfoKey( |
| 1015 | h_key_, // key handle |
| 1016 | NULL, // buffer for class name |
| 1017 | NULL, // size of class string |
| 1018 | NULL, // reserved |
| 1019 | &num_subkeys, // number of subkeys |
| 1020 | NULL, // longest subkey size |
| 1021 | NULL, // longest class string |
| 1022 | NULL, // number of values for this key |
| 1023 | NULL, // longest value name |
| 1024 | NULL, // longest value data |
| 1025 | NULL, // security descriptor |
| 1026 | NULL)) { // last write time |
| 1027 | ASSERT(false); |
| 1028 | } |
| 1029 | return num_subkeys; |
| 1030 | } |
| 1031 | |
| 1032 | HRESULT RegKey::GetSubkeyNameAt(int index, std::wstring* key_name) { |
| 1033 | ASSERT(key_name != NULL); |
| 1034 | |
| 1035 | LONG res = ERROR_SUCCESS; |
| 1036 | wchar_t key_name_buf[kMaxKeyNameChars] = {0}; |
| 1037 | DWORD key_name_buf_size = kMaxKeyNameChars; |
| 1038 | |
| 1039 | res = ::RegEnumKeyEx(h_key_, index, key_name_buf, &key_name_buf_size, |
| 1040 | NULL, NULL, NULL, NULL); |
| 1041 | |
| 1042 | if (res == ERROR_SUCCESS) { |
| 1043 | key_name->assign(key_name_buf); |
| 1044 | } |
| 1045 | |
| 1046 | return HRESULT_FROM_WIN32(res); |
| 1047 | } |
| 1048 | |
| 1049 | // Is the key empty: having no sub-keys and values |
| 1050 | bool RegKey::IsKeyEmpty(const wchar_t* full_key_name) { |
| 1051 | ASSERT(full_key_name != NULL); |
| 1052 | |
| 1053 | bool is_empty = true; |
| 1054 | |
| 1055 | // Get the root HKEY |
| 1056 | std::wstring key_name(full_key_name); |
| 1057 | HKEY h_key = GetRootKeyInfo(&key_name); |
| 1058 | |
| 1059 | // Open the key to check |
| 1060 | if (h_key != NULL) { |
| 1061 | RegKey key; |
| 1062 | HRESULT hr = key.Open(h_key, key_name.c_str(), KEY_READ); |
| 1063 | if (SUCCEEDED(hr)) { |
| 1064 | is_empty = key.GetSubkeyCount() == 0 && key.GetValueCount() == 0; |
| 1065 | key.Close(); |
| 1066 | } |
| 1067 | } |
| 1068 | |
| 1069 | return is_empty; |
| 1070 | } |
| 1071 | |
| 1072 | bool AdjustCurrentProcessPrivilege(const TCHAR* privilege, bool to_enable) { |
| 1073 | ASSERT(privilege != NULL); |
| 1074 | |
| 1075 | bool ret = false; |
| 1076 | HANDLE token; |
| 1077 | if (::OpenProcessToken(::GetCurrentProcess(), |
| 1078 | TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) { |
| 1079 | LUID luid; |
| 1080 | memset(&luid, 0, sizeof(luid)); |
| 1081 | if (::LookupPrivilegeValue(NULL, privilege, &luid)) { |
| 1082 | TOKEN_PRIVILEGES privs; |
| 1083 | privs.PrivilegeCount = 1; |
| 1084 | privs.Privileges[0].Luid = luid; |
| 1085 | privs.Privileges[0].Attributes = to_enable ? SE_PRIVILEGE_ENABLED : 0; |
| 1086 | if (::AdjustTokenPrivileges(token, FALSE, &privs, 0, NULL, 0)) { |
| 1087 | ret = true; |
| 1088 | } else { |
| 1089 | LOG_GLE(LS_ERROR) << "AdjustTokenPrivileges failed"; |
| 1090 | } |
| 1091 | } else { |
| 1092 | LOG_GLE(LS_ERROR) << "LookupPrivilegeValue failed"; |
| 1093 | } |
| 1094 | CloseHandle(token); |
| 1095 | } else { |
| 1096 | LOG_GLE(LS_ERROR) << "OpenProcessToken(GetCurrentProcess) failed"; |
| 1097 | } |
| 1098 | |
| 1099 | return ret; |
| 1100 | } |
| 1101 | |
| 1102 | } // namespace rtc |