projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| c058d59f JY |
1 | /** @file\r |
| 2 | Safe String functions.\r | |
| 3 | \r | |
| 5dbfa01e | 4 | Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>\r |
| 9344f092 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| c058d59f JY |
6 | \r |
| 7 | **/\r | |
| 8 | \r | |
| d8af3301 | 9 | #include "BaseLibInternals.h"\r |
| c058d59f JY |
10 | \r |
| 11 | #define RSIZE_MAX (PcdGet32 (PcdMaximumUnicodeStringLength))\r | |
| 12 | \r | |
| 13 | #define ASCII_RSIZE_MAX (PcdGet32 (PcdMaximumAsciiStringLength))\r | |
| 14 | \r | |
| 15 | #define SAFE_STRING_CONSTRAINT_CHECK(Expression, Status) \\r | |
| 16 | do { \\r | |
| c058d59f | 17 | if (!(Expression)) { \\r |
| 09fe015a VC |
18 | DEBUG ((DEBUG_VERBOSE, \\r |
| 19 | "%a(%d) %a: SAFE_STRING_CONSTRAINT_CHECK(%a) failed. Return %r\n", \\r | |
| 5948ec36 | 20 | __FILE__, DEBUG_LINE_NUMBER, __FUNCTION__, DEBUG_EXPRESSION_STRING (Expression), Status)); \\r |
| c058d59f JY |
21 | return Status; \\r |
| 22 | } \\r | |
| 23 | } while (FALSE)\r | |
| 24 | \r | |
| 25 | /**\r | |
| 26 | Returns if 2 memory blocks are overlapped.\r | |
| 27 | \r | |
| 28 | @param Base1 Base address of 1st memory block.\r | |
| 29 | @param Size1 Size of 1st memory block.\r | |
| 30 | @param Base2 Base address of 2nd memory block.\r | |
| 31 | @param Size2 Size of 2nd memory block.\r | |
| 32 | \r | |
| 33 | @retval TRUE 2 memory blocks are overlapped.\r | |
| 34 | @retval FALSE 2 memory blocks are not overlapped.\r | |
| 35 | **/\r | |
| 36 | BOOLEAN\r | |
| 37 | InternalSafeStringIsOverlap (\r | |
| 38 | IN VOID *Base1,\r | |
| 39 | IN UINTN Size1,\r | |
| 40 | IN VOID *Base2,\r | |
| 41 | IN UINTN Size2\r | |
| 42 | )\r | |
| 43 | {\r | |
| 44 | if ((((UINTN)Base1 >= (UINTN)Base2) && ((UINTN)Base1 < (UINTN)Base2 + Size2)) ||\r | |
| 45 | (((UINTN)Base2 >= (UINTN)Base1) && ((UINTN)Base2 < (UINTN)Base1 + Size1))) {\r | |
| 46 | return TRUE;\r | |
| 47 | }\r | |
| 48 | return FALSE;\r | |
| 49 | }\r | |
| 50 | \r | |
| 51 | /**\r | |
| 52 | Returns if 2 Unicode strings are not overlapped.\r | |
| 53 | \r | |
| 54 | @param Str1 Start address of 1st Unicode string.\r | |
| 55 | @param Size1 The number of char in 1st Unicode string,\r | |
| 56 | including terminating null char.\r | |
| 57 | @param Str2 Start address of 2nd Unicode string.\r | |
| 58 | @param Size2 The number of char in 2nd Unicode string,\r | |
| 59 | including terminating null char.\r | |
| 60 | \r | |
| 61 | @retval TRUE 2 Unicode strings are NOT overlapped.\r | |
| 62 | @retval FALSE 2 Unicode strings are overlapped.\r | |
| 63 | **/\r | |
| 64 | BOOLEAN\r | |
| 65 | InternalSafeStringNoStrOverlap (\r | |
| 66 | IN CHAR16 *Str1,\r | |
| 67 | IN UINTN Size1,\r | |
| 68 | IN CHAR16 *Str2,\r | |
| 69 | IN UINTN Size2\r | |
| 70 | )\r | |
| 71 | {\r | |
| 72 | return !InternalSafeStringIsOverlap (Str1, Size1 * sizeof(CHAR16), Str2, Size2 * sizeof(CHAR16));\r | |
| 73 | }\r | |
| 74 | \r | |
| 75 | /**\r | |
| 76 | Returns if 2 Ascii strings are not overlapped.\r | |
| 77 | \r | |
| 78 | @param Str1 Start address of 1st Ascii string.\r | |
| 79 | @param Size1 The number of char in 1st Ascii string,\r | |
| 80 | including terminating null char.\r | |
| 81 | @param Str2 Start address of 2nd Ascii string.\r | |
| 82 | @param Size2 The number of char in 2nd Ascii string,\r | |
| 83 | including terminating null char.\r | |
| 84 | \r | |
| 85 | @retval TRUE 2 Ascii strings are NOT overlapped.\r | |
| 86 | @retval FALSE 2 Ascii strings are overlapped.\r | |
| 87 | **/\r | |
| 88 | BOOLEAN\r | |
| 89 | InternalSafeStringNoAsciiStrOverlap (\r | |
| 90 | IN CHAR8 *Str1,\r | |
| 91 | IN UINTN Size1,\r | |
| 92 | IN CHAR8 *Str2,\r | |
| 93 | IN UINTN Size2\r | |
| 94 | )\r | |
| 95 | {\r | |
| 96 | return !InternalSafeStringIsOverlap (Str1, Size1, Str2, Size2);\r | |
| 97 | }\r | |
| 98 | \r | |
| 99 | /**\r | |
| 100 | Returns the length of a Null-terminated Unicode string.\r | |
| 101 | \r | |
| 328f84b1 JY |
102 | This function is similar as strlen_s defined in C11.\r |
| 103 | \r | |
| c058d59f JY |
104 | If String is not aligned on a 16-bit boundary, then ASSERT().\r |
| 105 | \r | |
| 106 | @param String A pointer to a Null-terminated Unicode string.\r | |
| 107 | @param MaxSize The maximum number of Destination Unicode\r | |
| 108 | char, including terminating null char.\r | |
| 109 | \r | |
| 110 | @retval 0 If String is NULL.\r | |
| 111 | @retval MaxSize If there is no null character in the first MaxSize characters of String.\r | |
| 112 | @return The number of characters that percede the terminating null character.\r | |
| 113 | \r | |
| 114 | **/\r | |
| 115 | UINTN\r | |
| 116 | EFIAPI\r | |
| 117 | StrnLenS (\r | |
| 118 | IN CONST CHAR16 *String,\r | |
| 119 | IN UINTN MaxSize\r | |
| 120 | )\r | |
| 121 | {\r | |
| 122 | UINTN Length;\r | |
| 123 | \r | |
| 124 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 125 | \r | |
| 126 | //\r | |
| cb867499 | 127 | // If String is a null pointer or MaxSize is 0, then the StrnLenS function returns zero.\r |
| c058d59f | 128 | //\r |
| cb867499 | 129 | if ((String == NULL) || (MaxSize == 0)) {\r |
| c058d59f JY |
130 | return 0;\r |
| 131 | }\r | |
| 132 | \r | |
| 133 | //\r | |
| 134 | // Otherwise, the StrnLenS function returns the number of characters that precede the\r | |
| 135 | // terminating null character. If there is no null character in the first MaxSize characters of\r | |
| 136 | // String then StrnLenS returns MaxSize. At most the first MaxSize characters of String shall\r | |
| 137 | // be accessed by StrnLenS.\r | |
| 138 | //\r | |
| c07c517c HW |
139 | Length = 0;\r |
| 140 | while (String[Length] != 0) {\r | |
| 141 | if (Length >= MaxSize - 1) {\r | |
| 142 | return MaxSize;\r | |
| 143 | }\r | |
| 144 | Length++;\r | |
| c058d59f JY |
145 | }\r |
| 146 | return Length;\r | |
| 147 | }\r | |
| 148 | \r | |
| b590e43a HW |
149 | /**\r |
| 150 | Returns the size of a Null-terminated Unicode string in bytes, including the\r | |
| 151 | Null terminator.\r | |
| 152 | \r | |
| 153 | This function returns the size of the Null-terminated Unicode string\r | |
| 154 | specified by String in bytes, including the Null terminator.\r | |
| 155 | \r | |
| 156 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 157 | \r | |
| 158 | @param String A pointer to a Null-terminated Unicode string.\r | |
| 159 | @param MaxSize The maximum number of Destination Unicode\r | |
| 160 | char, including the Null terminator.\r | |
| 161 | \r | |
| 162 | @retval 0 If String is NULL.\r | |
| 163 | @retval (sizeof (CHAR16) * (MaxSize + 1))\r | |
| 164 | If there is no Null terminator in the first MaxSize characters of\r | |
| 165 | String.\r | |
| 166 | @return The size of the Null-terminated Unicode string in bytes, including\r | |
| 167 | the Null terminator.\r | |
| 168 | \r | |
| 169 | **/\r | |
| 170 | UINTN\r | |
| 171 | EFIAPI\r | |
| 172 | StrnSizeS (\r | |
| 173 | IN CONST CHAR16 *String,\r | |
| 174 | IN UINTN MaxSize\r | |
| 175 | )\r | |
| 176 | {\r | |
| 177 | //\r | |
| 178 | // If String is a null pointer, then the StrnSizeS function returns zero.\r | |
| 179 | //\r | |
| 180 | if (String == NULL) {\r | |
| 181 | return 0;\r | |
| 182 | }\r | |
| 183 | \r | |
| 184 | //\r | |
| 185 | // Otherwise, the StrnSizeS function returns the size of the Null-terminated\r | |
| 186 | // Unicode string in bytes, including the Null terminator. If there is no\r | |
| 187 | // Null terminator in the first MaxSize characters of String, then StrnSizeS\r | |
| 188 | // returns (sizeof (CHAR16) * (MaxSize + 1)) to keep a consistent map with\r | |
| 189 | // the StrnLenS function.\r | |
| 190 | //\r | |
| 191 | return (StrnLenS (String, MaxSize) + 1) * sizeof (*String);\r | |
| 192 | }\r | |
| 193 | \r | |
| c058d59f JY |
194 | /**\r |
| 195 | Copies the string pointed to by Source (including the terminating null char)\r | |
| 196 | to the array pointed to by Destination.\r | |
| 197 | \r | |
| 328f84b1 JY |
198 | This function is similar as strcpy_s defined in C11.\r |
| 199 | \r | |
| c058d59f JY |
200 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r |
| 201 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 202 | \r | |
| 328f84b1 JY |
203 | If an error is returned, then the Destination is unmodified.\r |
| 204 | \r | |
| c058d59f JY |
205 | @param Destination A pointer to a Null-terminated Unicode string.\r |
| 206 | @param DestMax The maximum number of Destination Unicode\r | |
| 207 | char, including terminating null char.\r | |
| 208 | @param Source A pointer to a Null-terminated Unicode string.\r | |
| 209 | \r | |
| 210 | @retval RETURN_SUCCESS String is copied.\r | |
| 211 | @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r | |
| 212 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 213 | If Source is NULL.\r | |
| 214 | If PcdMaximumUnicodeStringLength is not zero,\r | |
| 973f8862 | 215 | and DestMax is greater than\r |
| c058d59f JY |
216 | PcdMaximumUnicodeStringLength.\r |
| 217 | If DestMax is 0.\r | |
| 218 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 219 | **/\r | |
| 220 | RETURN_STATUS\r | |
| 221 | EFIAPI\r | |
| 222 | StrCpyS (\r | |
| 223 | OUT CHAR16 *Destination,\r | |
| 224 | IN UINTN DestMax,\r | |
| 225 | IN CONST CHAR16 *Source\r | |
| 226 | )\r | |
| 227 | {\r | |
| 228 | UINTN SourceLen;\r | |
| 973f8862 | 229 | \r |
| c058d59f JY |
230 | ASSERT (((UINTN) Destination & BIT0) == 0);\r |
| 231 | ASSERT (((UINTN) Source & BIT0) == 0);\r | |
| 232 | \r | |
| 233 | //\r | |
| 234 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 235 | //\r | |
| 236 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 237 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 238 | \r | |
| 239 | //\r | |
| 240 | // 2. DestMax shall not be greater than RSIZE_MAX.\r | |
| 241 | //\r | |
| 242 | if (RSIZE_MAX != 0) {\r | |
| 243 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 244 | }\r | |
| 245 | \r | |
| 246 | //\r | |
| 247 | // 3. DestMax shall not equal zero.\r | |
| 248 | //\r | |
| 249 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 250 | \r | |
| 251 | //\r | |
| 252 | // 4. DestMax shall be greater than StrnLenS(Source, DestMax).\r | |
| 253 | //\r | |
| 254 | SourceLen = StrnLenS (Source, DestMax);\r | |
| 255 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 256 | \r | |
| 257 | //\r | |
| 258 | // 5. Copying shall not take place between objects that overlap.\r | |
| 259 | //\r | |
| 260 | SAFE_STRING_CONSTRAINT_CHECK (InternalSafeStringNoStrOverlap (Destination, DestMax, (CHAR16 *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 261 | \r | |
| 262 | //\r | |
| 263 | // The StrCpyS function copies the string pointed to by Source (including the terminating\r | |
| 264 | // null character) into the array pointed to by Destination.\r | |
| 265 | //\r | |
| 266 | while (*Source != 0) {\r | |
| 267 | *(Destination++) = *(Source++);\r | |
| 268 | }\r | |
| 269 | *Destination = 0;\r | |
| 270 | \r | |
| 271 | return RETURN_SUCCESS;\r | |
| 272 | }\r | |
| 273 | \r | |
| 274 | /**\r | |
| 275 | Copies not more than Length successive char from the string pointed to by\r | |
| 276 | Source to the array pointed to by Destination. If no null char is copied from\r | |
| 277 | Source, then Destination[Length] is always set to null.\r | |
| 278 | \r | |
| 328f84b1 JY |
279 | This function is similar as strncpy_s defined in C11.\r |
| 280 | \r | |
| c058d59f JY |
281 | If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r |
| 282 | If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 283 | \r | |
| 328f84b1 JY |
284 | If an error is returned, then the Destination is unmodified.\r |
| 285 | \r | |
| c058d59f JY |
286 | @param Destination A pointer to a Null-terminated Unicode string.\r |
| 287 | @param DestMax The maximum number of Destination Unicode\r | |
| 288 | char, including terminating null char.\r | |
| 289 | @param Source A pointer to a Null-terminated Unicode string.\r | |
| 290 | @param Length The maximum number of Unicode characters to copy.\r | |
| 291 | \r | |
| 292 | @retval RETURN_SUCCESS String is copied.\r | |
| 973f8862 | 293 | @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than\r |
| c058d59f JY |
294 | MIN(StrLen(Source), Length).\r |
| 295 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 296 | If Source is NULL.\r | |
| 297 | If PcdMaximumUnicodeStringLength is not zero,\r | |
| 973f8862 | 298 | and DestMax is greater than\r |
| c058d59f JY |
299 | PcdMaximumUnicodeStringLength.\r |
| 300 | If DestMax is 0.\r | |
| 301 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 302 | **/\r | |
| 303 | RETURN_STATUS\r | |
| 304 | EFIAPI\r | |
| 305 | StrnCpyS (\r | |
| 306 | OUT CHAR16 *Destination,\r | |
| 307 | IN UINTN DestMax,\r | |
| 308 | IN CONST CHAR16 *Source,\r | |
| 309 | IN UINTN Length\r | |
| 310 | )\r | |
| 311 | {\r | |
| 312 | UINTN SourceLen;\r | |
| 313 | \r | |
| 314 | ASSERT (((UINTN) Destination & BIT0) == 0);\r | |
| 315 | ASSERT (((UINTN) Source & BIT0) == 0);\r | |
| 316 | \r | |
| 317 | //\r | |
| 318 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 319 | //\r | |
| 320 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 321 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 322 | \r | |
| 323 | //\r | |
| 324 | // 2. Neither DestMax nor Length shall be greater than RSIZE_MAX\r | |
| 325 | //\r | |
| 326 | if (RSIZE_MAX != 0) {\r | |
| 327 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 328 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 329 | }\r | |
| 330 | \r | |
| 331 | //\r | |
| 332 | // 3. DestMax shall not equal zero.\r | |
| 333 | //\r | |
| 334 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 335 | \r | |
| 336 | //\r | |
| 337 | // 4. If Length is not less than DestMax, then DestMax shall be greater than StrnLenS(Source, DestMax).\r | |
| 338 | //\r | |
| 56658c22 | 339 | SourceLen = StrnLenS (Source, MIN (DestMax, Length));\r |
| c058d59f JY |
340 | if (Length >= DestMax) {\r |
| 341 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 342 | }\r | |
| 343 | \r | |
| 344 | //\r | |
| 345 | // 5. Copying shall not take place between objects that overlap.\r | |
| 346 | //\r | |
| 347 | if (SourceLen > Length) {\r | |
| 348 | SourceLen = Length;\r | |
| 349 | }\r | |
| 350 | SAFE_STRING_CONSTRAINT_CHECK (InternalSafeStringNoStrOverlap (Destination, DestMax, (CHAR16 *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 351 | \r | |
| 352 | //\r | |
| 353 | // The StrnCpyS function copies not more than Length successive characters (characters that\r | |
| 354 | // follow a null character are not copied) from the array pointed to by Source to the array\r | |
| 355 | // pointed to by Destination. If no null character was copied from Source, then Destination[Length] is set to a null\r | |
| 356 | // character.\r | |
| 357 | //\r | |
| 56658c22 | 358 | while ((SourceLen > 0) && (*Source != 0)) {\r |
| c058d59f JY |
359 | *(Destination++) = *(Source++);\r |
| 360 | SourceLen--;\r | |
| 361 | }\r | |
| 362 | *Destination = 0;\r | |
| 363 | \r | |
| 364 | return RETURN_SUCCESS;\r | |
| 365 | }\r | |
| 366 | \r | |
| 367 | /**\r | |
| 368 | Appends a copy of the string pointed to by Source (including the terminating\r | |
| 369 | null char) to the end of the string pointed to by Destination.\r | |
| 370 | \r | |
| 328f84b1 JY |
371 | This function is similar as strcat_s defined in C11.\r |
| 372 | \r | |
| c058d59f JY |
373 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r |
| 374 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 375 | \r | |
| 328f84b1 JY |
376 | If an error is returned, then the Destination is unmodified.\r |
| 377 | \r | |
| c058d59f JY |
378 | @param Destination A pointer to a Null-terminated Unicode string.\r |
| 379 | @param DestMax The maximum number of Destination Unicode\r | |
| 380 | char, including terminating null char.\r | |
| 381 | @param Source A pointer to a Null-terminated Unicode string.\r | |
| 382 | \r | |
| 383 | @retval RETURN_SUCCESS String is appended.\r | |
| 973f8862 | 384 | @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r |
| c058d59f JY |
385 | StrLen(Destination).\r |
| 386 | @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r | |
| 387 | greater than StrLen(Source).\r | |
| 388 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 389 | If Source is NULL.\r | |
| 390 | If PcdMaximumUnicodeStringLength is not zero,\r | |
| 973f8862 | 391 | and DestMax is greater than\r |
| c058d59f JY |
392 | PcdMaximumUnicodeStringLength.\r |
| 393 | If DestMax is 0.\r | |
| 394 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 395 | **/\r | |
| 396 | RETURN_STATUS\r | |
| 397 | EFIAPI\r | |
| 398 | StrCatS (\r | |
| 399 | IN OUT CHAR16 *Destination,\r | |
| 400 | IN UINTN DestMax,\r | |
| 401 | IN CONST CHAR16 *Source\r | |
| 402 | )\r | |
| 403 | {\r | |
| 404 | UINTN DestLen;\r | |
| 405 | UINTN CopyLen;\r | |
| 406 | UINTN SourceLen;\r | |
| 973f8862 | 407 | \r |
| c058d59f JY |
408 | ASSERT (((UINTN) Destination & BIT0) == 0);\r |
| 409 | ASSERT (((UINTN) Source & BIT0) == 0);\r | |
| 410 | \r | |
| 411 | //\r | |
| 412 | // Let CopyLen denote the value DestMax - StrnLenS(Destination, DestMax) upon entry to StrCatS.\r | |
| 413 | //\r | |
| 414 | DestLen = StrnLenS (Destination, DestMax);\r | |
| 415 | CopyLen = DestMax - DestLen;\r | |
| 416 | \r | |
| 417 | //\r | |
| 418 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 419 | //\r | |
| 420 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 421 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 422 | \r | |
| 423 | //\r | |
| 424 | // 2. DestMax shall not be greater than RSIZE_MAX.\r | |
| 425 | //\r | |
| 426 | if (RSIZE_MAX != 0) {\r | |
| 427 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 428 | }\r | |
| 429 | \r | |
| 430 | //\r | |
| 431 | // 3. DestMax shall not equal zero.\r | |
| 432 | //\r | |
| 433 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 434 | \r | |
| 435 | //\r | |
| 436 | // 4. CopyLen shall not equal zero.\r | |
| 437 | //\r | |
| 438 | SAFE_STRING_CONSTRAINT_CHECK ((CopyLen != 0), RETURN_BAD_BUFFER_SIZE);\r | |
| 439 | \r | |
| 440 | //\r | |
| 441 | // 5. CopyLen shall be greater than StrnLenS(Source, CopyLen).\r | |
| 442 | //\r | |
| 443 | SourceLen = StrnLenS (Source, CopyLen);\r | |
| 444 | SAFE_STRING_CONSTRAINT_CHECK ((CopyLen > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 445 | \r | |
| 446 | //\r | |
| 447 | // 6. Copying shall not take place between objects that overlap.\r | |
| 448 | //\r | |
| 449 | SAFE_STRING_CONSTRAINT_CHECK (InternalSafeStringNoStrOverlap (Destination, DestMax, (CHAR16 *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 450 | \r | |
| 451 | //\r | |
| 452 | // The StrCatS function appends a copy of the string pointed to by Source (including the\r | |
| 453 | // terminating null character) to the end of the string pointed to by Destination. The initial character\r | |
| 454 | // from Source overwrites the null character at the end of Destination.\r | |
| 455 | //\r | |
| 456 | Destination = Destination + DestLen;\r | |
| 457 | while (*Source != 0) {\r | |
| 458 | *(Destination++) = *(Source++);\r | |
| 459 | }\r | |
| 460 | *Destination = 0;\r | |
| 461 | \r | |
| 462 | return RETURN_SUCCESS;\r | |
| 463 | }\r | |
| 464 | \r | |
| 465 | /**\r | |
| 466 | Appends not more than Length successive char from the string pointed to by\r | |
| 467 | Source to the end of the string pointed to by Destination. If no null char is\r | |
| 468 | copied from Source, then Destination[StrLen(Destination) + Length] is always\r | |
| 469 | set to null.\r | |
| 470 | \r | |
| 328f84b1 JY |
471 | This function is similar as strncat_s defined in C11.\r |
| 472 | \r | |
| c058d59f | 473 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r |
| 0e93edbb | 474 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r |
| c058d59f | 475 | \r |
| 328f84b1 JY |
476 | If an error is returned, then the Destination is unmodified.\r |
| 477 | \r | |
| c058d59f JY |
478 | @param Destination A pointer to a Null-terminated Unicode string.\r |
| 479 | @param DestMax The maximum number of Destination Unicode\r | |
| 480 | char, including terminating null char.\r | |
| 481 | @param Source A pointer to a Null-terminated Unicode string.\r | |
| 482 | @param Length The maximum number of Unicode characters to copy.\r | |
| 483 | \r | |
| 484 | @retval RETURN_SUCCESS String is appended.\r | |
| 485 | @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r | |
| 486 | StrLen(Destination).\r | |
| 487 | @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r | |
| 488 | greater than MIN(StrLen(Source), Length).\r | |
| 489 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 490 | If Source is NULL.\r | |
| 491 | If PcdMaximumUnicodeStringLength is not zero,\r | |
| 973f8862 | 492 | and DestMax is greater than\r |
| c058d59f JY |
493 | PcdMaximumUnicodeStringLength.\r |
| 494 | If DestMax is 0.\r | |
| 495 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 496 | **/\r | |
| 497 | RETURN_STATUS\r | |
| 498 | EFIAPI\r | |
| 499 | StrnCatS (\r | |
| 500 | IN OUT CHAR16 *Destination,\r | |
| 501 | IN UINTN DestMax,\r | |
| 502 | IN CONST CHAR16 *Source,\r | |
| 503 | IN UINTN Length\r | |
| 504 | )\r | |
| 505 | {\r | |
| 506 | UINTN DestLen;\r | |
| 507 | UINTN CopyLen;\r | |
| 508 | UINTN SourceLen;\r | |
| 973f8862 | 509 | \r |
| c058d59f JY |
510 | ASSERT (((UINTN) Destination & BIT0) == 0);\r |
| 511 | ASSERT (((UINTN) Source & BIT0) == 0);\r | |
| 512 | \r | |
| 513 | //\r | |
| 514 | // Let CopyLen denote the value DestMax - StrnLenS(Destination, DestMax) upon entry to StrnCatS.\r | |
| 515 | //\r | |
| 516 | DestLen = StrnLenS (Destination, DestMax);\r | |
| 517 | CopyLen = DestMax - DestLen;\r | |
| 518 | \r | |
| 519 | //\r | |
| 520 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 521 | //\r | |
| 522 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 523 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 524 | \r | |
| 525 | //\r | |
| 526 | // 2. Neither DestMax nor Length shall be greater than RSIZE_MAX.\r | |
| 527 | //\r | |
| 528 | if (RSIZE_MAX != 0) {\r | |
| 529 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 530 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 531 | }\r | |
| 532 | \r | |
| 533 | //\r | |
| 534 | // 3. DestMax shall not equal zero.\r | |
| 535 | //\r | |
| 536 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 537 | \r | |
| 538 | //\r | |
| 539 | // 4. CopyLen shall not equal zero.\r | |
| 540 | //\r | |
| 541 | SAFE_STRING_CONSTRAINT_CHECK ((CopyLen != 0), RETURN_BAD_BUFFER_SIZE);\r | |
| 542 | \r | |
| 543 | //\r | |
| 544 | // 5. If Length is not less than CopyLen, then CopyLen shall be greater than StrnLenS(Source, CopyLen).\r | |
| 545 | //\r | |
| 56658c22 | 546 | SourceLen = StrnLenS (Source, MIN (CopyLen, Length));\r |
| c058d59f JY |
547 | if (Length >= CopyLen) {\r |
| 548 | SAFE_STRING_CONSTRAINT_CHECK ((CopyLen > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 549 | }\r | |
| 550 | \r | |
| 551 | //\r | |
| 552 | // 6. Copying shall not take place between objects that overlap.\r | |
| 553 | //\r | |
| 554 | if (SourceLen > Length) {\r | |
| 555 | SourceLen = Length;\r | |
| 556 | }\r | |
| 557 | SAFE_STRING_CONSTRAINT_CHECK (InternalSafeStringNoStrOverlap (Destination, DestMax, (CHAR16 *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 558 | \r | |
| 559 | //\r | |
| 560 | // The StrnCatS function appends not more than Length successive characters (characters\r | |
| 561 | // that follow a null character are not copied) from the array pointed to by Source to the end of\r | |
| 562 | // the string pointed to by Destination. The initial character from Source overwrites the null character at\r | |
| 563 | // the end of Destination. If no null character was copied from Source, then Destination[DestMax-CopyLen+Length] is set to\r | |
| 564 | // a null character.\r | |
| 565 | //\r | |
| 566 | Destination = Destination + DestLen;\r | |
| 56658c22 | 567 | while ((SourceLen > 0) && (*Source != 0)) {\r |
| c058d59f JY |
568 | *(Destination++) = *(Source++);\r |
| 569 | SourceLen--;\r | |
| 570 | }\r | |
| 571 | *Destination = 0;\r | |
| 572 | \r | |
| 573 | return RETURN_SUCCESS;\r | |
| 574 | }\r | |
| 575 | \r | |
| d8af3301 HW |
576 | /**\r |
| 577 | Convert a Null-terminated Unicode decimal string to a value of type UINTN.\r | |
| 578 | \r | |
| 579 | This function outputs a value of type UINTN by interpreting the contents of\r | |
| 580 | the Unicode string specified by String as a decimal number. The format of the\r | |
| 581 | input Unicode string String is:\r | |
| 582 | \r | |
| 583 | [spaces] [decimal digits].\r | |
| 584 | \r | |
| 585 | The valid decimal digit character is in the range [0-9]. The function will\r | |
| 586 | ignore the pad space, which includes spaces or tab characters, before\r | |
| 587 | [decimal digits]. The running zero in the beginning of [decimal digits] will\r | |
| 588 | be ignored. Then, the function stops at the first character that is a not a\r | |
| 589 | valid decimal character or a Null-terminator, whichever one comes first.\r | |
| 590 | \r | |
| d8af3301 | 591 | If String is not aligned in a 16-bit boundary, then ASSERT().\r |
| d8af3301 HW |
592 | \r |
| 593 | If String has no valid decimal digits in the above format, then 0 is stored\r | |
| 594 | at the location pointed to by Data.\r | |
| 595 | If the number represented by String exceeds the range defined by UINTN, then\r | |
| 596 | MAX_UINTN is stored at the location pointed to by Data.\r | |
| 597 | \r | |
| 598 | If EndPointer is not NULL, a pointer to the character that stopped the scan\r | |
| 599 | is stored at the location pointed to by EndPointer. If String has no valid\r | |
| 600 | decimal digits right after the optional pad spaces, the value of String is\r | |
| 601 | stored at the location pointed to by EndPointer.\r | |
| 602 | \r | |
| 603 | @param String Pointer to a Null-terminated Unicode string.\r | |
| 604 | @param EndPointer Pointer to character that stops scan.\r | |
| 605 | @param Data Pointer to the converted value.\r | |
| 606 | \r | |
| 607 | @retval RETURN_SUCCESS Value is translated from String.\r | |
| 608 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 609 | If Data is NULL.\r | |
| 610 | If PcdMaximumUnicodeStringLength is not\r | |
| 611 | zero, and String contains more than\r | |
| 612 | PcdMaximumUnicodeStringLength Unicode\r | |
| 613 | characters, not including the\r | |
| 614 | Null-terminator.\r | |
| 615 | @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r | |
| 616 | the range defined by UINTN.\r | |
| 617 | \r | |
| 618 | **/\r | |
| 619 | RETURN_STATUS\r | |
| 620 | EFIAPI\r | |
| 621 | StrDecimalToUintnS (\r | |
| 622 | IN CONST CHAR16 *String,\r | |
| 623 | OUT CHAR16 **EndPointer, OPTIONAL\r | |
| 624 | OUT UINTN *Data\r | |
| 625 | )\r | |
| 626 | {\r | |
| 627 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 628 | \r | |
| 629 | //\r | |
| 630 | // 1. Neither String nor Data shall be a null pointer.\r | |
| 631 | //\r | |
| 632 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 633 | SAFE_STRING_CONSTRAINT_CHECK ((Data != NULL), RETURN_INVALID_PARAMETER);\r | |
| 634 | \r | |
| 635 | //\r | |
| 636 | // 2. The length of String shall not be greater than RSIZE_MAX.\r | |
| 637 | //\r | |
| 638 | if (RSIZE_MAX != 0) {\r | |
| 639 | SAFE_STRING_CONSTRAINT_CHECK ((StrnLenS (String, RSIZE_MAX + 1) <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 640 | }\r | |
| 641 | \r | |
| 642 | if (EndPointer != NULL) {\r | |
| 643 | *EndPointer = (CHAR16 *) String;\r | |
| 644 | }\r | |
| 645 | \r | |
| 646 | //\r | |
| 647 | // Ignore the pad spaces (space or tab)\r | |
| 648 | //\r | |
| 649 | while ((*String == L' ') || (*String == L'\t')) {\r | |
| 650 | String++;\r | |
| 651 | }\r | |
| 652 | \r | |
| 653 | //\r | |
| 654 | // Ignore leading Zeros after the spaces\r | |
| 655 | //\r | |
| 656 | while (*String == L'0') {\r | |
| 657 | String++;\r | |
| 658 | }\r | |
| 659 | \r | |
| 660 | *Data = 0;\r | |
| 661 | \r | |
| 662 | while (InternalIsDecimalDigitCharacter (*String)) {\r | |
| 663 | //\r | |
| 664 | // If the number represented by String overflows according to the range\r | |
| 665 | // defined by UINTN, then MAX_UINTN is stored in *Data and\r | |
| 666 | // RETURN_UNSUPPORTED is returned.\r | |
| 667 | //\r | |
| 668 | if (*Data > ((MAX_UINTN - (*String - L'0')) / 10)) {\r | |
| 669 | *Data = MAX_UINTN;\r | |
| 670 | if (EndPointer != NULL) {\r | |
| 671 | *EndPointer = (CHAR16 *) String;\r | |
| 672 | }\r | |
| 673 | return RETURN_UNSUPPORTED;\r | |
| 674 | }\r | |
| 675 | \r | |
| 676 | *Data = *Data * 10 + (*String - L'0');\r | |
| 677 | String++;\r | |
| 678 | }\r | |
| 679 | \r | |
| 680 | if (EndPointer != NULL) {\r | |
| 681 | *EndPointer = (CHAR16 *) String;\r | |
| 682 | }\r | |
| 683 | return RETURN_SUCCESS;\r | |
| 684 | }\r | |
| 685 | \r | |
| 686 | /**\r | |
| 687 | Convert a Null-terminated Unicode decimal string to a value of type UINT64.\r | |
| 688 | \r | |
| 689 | This function outputs a value of type UINT64 by interpreting the contents of\r | |
| 690 | the Unicode string specified by String as a decimal number. The format of the\r | |
| 691 | input Unicode string String is:\r | |
| 692 | \r | |
| 693 | [spaces] [decimal digits].\r | |
| 694 | \r | |
| 695 | The valid decimal digit character is in the range [0-9]. The function will\r | |
| 696 | ignore the pad space, which includes spaces or tab characters, before\r | |
| 697 | [decimal digits]. The running zero in the beginning of [decimal digits] will\r | |
| 698 | be ignored. Then, the function stops at the first character that is a not a\r | |
| 699 | valid decimal character or a Null-terminator, whichever one comes first.\r | |
| 700 | \r | |
| d8af3301 | 701 | If String is not aligned in a 16-bit boundary, then ASSERT().\r |
| d8af3301 HW |
702 | \r |
| 703 | If String has no valid decimal digits in the above format, then 0 is stored\r | |
| 704 | at the location pointed to by Data.\r | |
| 705 | If the number represented by String exceeds the range defined by UINT64, then\r | |
| 706 | MAX_UINT64 is stored at the location pointed to by Data.\r | |
| 707 | \r | |
| 708 | If EndPointer is not NULL, a pointer to the character that stopped the scan\r | |
| 709 | is stored at the location pointed to by EndPointer. If String has no valid\r | |
| 710 | decimal digits right after the optional pad spaces, the value of String is\r | |
| 711 | stored at the location pointed to by EndPointer.\r | |
| 712 | \r | |
| 713 | @param String Pointer to a Null-terminated Unicode string.\r | |
| 714 | @param EndPointer Pointer to character that stops scan.\r | |
| 715 | @param Data Pointer to the converted value.\r | |
| 716 | \r | |
| 717 | @retval RETURN_SUCCESS Value is translated from String.\r | |
| 718 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 719 | If Data is NULL.\r | |
| 720 | If PcdMaximumUnicodeStringLength is not\r | |
| 721 | zero, and String contains more than\r | |
| 722 | PcdMaximumUnicodeStringLength Unicode\r | |
| 723 | characters, not including the\r | |
| 724 | Null-terminator.\r | |
| 725 | @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r | |
| 726 | the range defined by UINT64.\r | |
| 727 | \r | |
| 728 | **/\r | |
| 729 | RETURN_STATUS\r | |
| 730 | EFIAPI\r | |
| 731 | StrDecimalToUint64S (\r | |
| 732 | IN CONST CHAR16 *String,\r | |
| 733 | OUT CHAR16 **EndPointer, OPTIONAL\r | |
| 734 | OUT UINT64 *Data\r | |
| 735 | )\r | |
| 736 | {\r | |
| 737 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 738 | \r | |
| 739 | //\r | |
| 740 | // 1. Neither String nor Data shall be a null pointer.\r | |
| 741 | //\r | |
| 742 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 743 | SAFE_STRING_CONSTRAINT_CHECK ((Data != NULL), RETURN_INVALID_PARAMETER);\r | |
| 744 | \r | |
| 745 | //\r | |
| 746 | // 2. The length of String shall not be greater than RSIZE_MAX.\r | |
| 747 | //\r | |
| 748 | if (RSIZE_MAX != 0) {\r | |
| 749 | SAFE_STRING_CONSTRAINT_CHECK ((StrnLenS (String, RSIZE_MAX + 1) <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 750 | }\r | |
| 751 | \r | |
| 752 | if (EndPointer != NULL) {\r | |
| 753 | *EndPointer = (CHAR16 *) String;\r | |
| 754 | }\r | |
| 755 | \r | |
| 756 | //\r | |
| 757 | // Ignore the pad spaces (space or tab)\r | |
| 758 | //\r | |
| 759 | while ((*String == L' ') || (*String == L'\t')) {\r | |
| 760 | String++;\r | |
| 761 | }\r | |
| 762 | \r | |
| 763 | //\r | |
| 764 | // Ignore leading Zeros after the spaces\r | |
| 765 | //\r | |
| 766 | while (*String == L'0') {\r | |
| 767 | String++;\r | |
| 768 | }\r | |
| 769 | \r | |
| 770 | *Data = 0;\r | |
| 771 | \r | |
| 772 | while (InternalIsDecimalDigitCharacter (*String)) {\r | |
| 773 | //\r | |
| 774 | // If the number represented by String overflows according to the range\r | |
| 775 | // defined by UINT64, then MAX_UINT64 is stored in *Data and\r | |
| 776 | // RETURN_UNSUPPORTED is returned.\r | |
| 777 | //\r | |
| 778 | if (*Data > DivU64x32 (MAX_UINT64 - (*String - L'0'), 10)) {\r | |
| 779 | *Data = MAX_UINT64;\r | |
| 780 | if (EndPointer != NULL) {\r | |
| 781 | *EndPointer = (CHAR16 *) String;\r | |
| 782 | }\r | |
| 783 | return RETURN_UNSUPPORTED;\r | |
| 784 | }\r | |
| 785 | \r | |
| 786 | *Data = MultU64x32 (*Data, 10) + (*String - L'0');\r | |
| 787 | String++;\r | |
| 788 | }\r | |
| 789 | \r | |
| 790 | if (EndPointer != NULL) {\r | |
| 791 | *EndPointer = (CHAR16 *) String;\r | |
| 792 | }\r | |
| 793 | return RETURN_SUCCESS;\r | |
| 794 | }\r | |
| 795 | \r | |
| 796 | /**\r | |
| 797 | Convert a Null-terminated Unicode hexadecimal string to a value of type\r | |
| 798 | UINTN.\r | |
| 799 | \r | |
| 800 | This function outputs a value of type UINTN by interpreting the contents of\r | |
| 801 | the Unicode string specified by String as a hexadecimal number. The format of\r | |
| 802 | the input Unicode string String is:\r | |
| 803 | \r | |
| 804 | [spaces][zeros][x][hexadecimal digits].\r | |
| 805 | \r | |
| 806 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r | |
| 807 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r | |
| 808 | If "x" appears in the input string, it must be prefixed with at least one 0.\r | |
| 809 | The function will ignore the pad space, which includes spaces or tab\r | |
| 810 | characters, before [zeros], [x] or [hexadecimal digit]. The running zero\r | |
| 811 | before [x] or [hexadecimal digit] will be ignored. Then, the decoding starts\r | |
| 812 | after [x] or the first valid hexadecimal digit. Then, the function stops at\r | |
| 813 | the first character that is a not a valid hexadecimal character or NULL,\r | |
| 814 | whichever one comes first.\r | |
| 815 | \r | |
| d8af3301 | 816 | If String is not aligned in a 16-bit boundary, then ASSERT().\r |
| d8af3301 HW |
817 | \r |
| 818 | If String has no valid hexadecimal digits in the above format, then 0 is\r | |
| 819 | stored at the location pointed to by Data.\r | |
| 820 | If the number represented by String exceeds the range defined by UINTN, then\r | |
| 821 | MAX_UINTN is stored at the location pointed to by Data.\r | |
| 822 | \r | |
| 823 | If EndPointer is not NULL, a pointer to the character that stopped the scan\r | |
| 824 | is stored at the location pointed to by EndPointer. If String has no valid\r | |
| 825 | hexadecimal digits right after the optional pad spaces, the value of String\r | |
| 826 | is stored at the location pointed to by EndPointer.\r | |
| 827 | \r | |
| 828 | @param String Pointer to a Null-terminated Unicode string.\r | |
| 829 | @param EndPointer Pointer to character that stops scan.\r | |
| 830 | @param Data Pointer to the converted value.\r | |
| 831 | \r | |
| 832 | @retval RETURN_SUCCESS Value is translated from String.\r | |
| 833 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 834 | If Data is NULL.\r | |
| 835 | If PcdMaximumUnicodeStringLength is not\r | |
| 836 | zero, and String contains more than\r | |
| 837 | PcdMaximumUnicodeStringLength Unicode\r | |
| 838 | characters, not including the\r | |
| 839 | Null-terminator.\r | |
| 840 | @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r | |
| 841 | the range defined by UINTN.\r | |
| 842 | \r | |
| 843 | **/\r | |
| 844 | RETURN_STATUS\r | |
| 845 | EFIAPI\r | |
| 846 | StrHexToUintnS (\r | |
| 847 | IN CONST CHAR16 *String,\r | |
| 848 | OUT CHAR16 **EndPointer, OPTIONAL\r | |
| 849 | OUT UINTN *Data\r | |
| 850 | )\r | |
| 851 | {\r | |
| 852 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 853 | \r | |
| 854 | //\r | |
| 855 | // 1. Neither String nor Data shall be a null pointer.\r | |
| 856 | //\r | |
| 857 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 858 | SAFE_STRING_CONSTRAINT_CHECK ((Data != NULL), RETURN_INVALID_PARAMETER);\r | |
| 859 | \r | |
| 860 | //\r | |
| 861 | // 2. The length of String shall not be greater than RSIZE_MAX.\r | |
| 862 | //\r | |
| 863 | if (RSIZE_MAX != 0) {\r | |
| 864 | SAFE_STRING_CONSTRAINT_CHECK ((StrnLenS (String, RSIZE_MAX + 1) <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 865 | }\r | |
| 866 | \r | |
| 867 | if (EndPointer != NULL) {\r | |
| 868 | *EndPointer = (CHAR16 *) String;\r | |
| 869 | }\r | |
| 870 | \r | |
| 871 | //\r | |
| 872 | // Ignore the pad spaces (space or tab)\r | |
| 873 | //\r | |
| 874 | while ((*String == L' ') || (*String == L'\t')) {\r | |
| 875 | String++;\r | |
| 876 | }\r | |
| 877 | \r | |
| 878 | //\r | |
| 879 | // Ignore leading Zeros after the spaces\r | |
| 880 | //\r | |
| 881 | while (*String == L'0') {\r | |
| 882 | String++;\r | |
| 883 | }\r | |
| 884 | \r | |
| 5dbfa01e | 885 | if (CharToUpper (*String) == L'X') {\r |
| d8af3301 HW |
886 | if (*(String - 1) != L'0') {\r |
| 887 | *Data = 0;\r | |
| 888 | return RETURN_SUCCESS;\r | |
| 889 | }\r | |
| 890 | //\r | |
| 891 | // Skip the 'X'\r | |
| 892 | //\r | |
| 893 | String++;\r | |
| 894 | }\r | |
| 895 | \r | |
| 896 | *Data = 0;\r | |
| 897 | \r | |
| 898 | while (InternalIsHexaDecimalDigitCharacter (*String)) {\r | |
| 899 | //\r | |
| 900 | // If the number represented by String overflows according to the range\r | |
| 901 | // defined by UINTN, then MAX_UINTN is stored in *Data and\r | |
| 902 | // RETURN_UNSUPPORTED is returned.\r | |
| 903 | //\r | |
| 904 | if (*Data > ((MAX_UINTN - InternalHexCharToUintn (*String)) >> 4)) {\r | |
| 905 | *Data = MAX_UINTN;\r | |
| 906 | if (EndPointer != NULL) {\r | |
| 907 | *EndPointer = (CHAR16 *) String;\r | |
| 908 | }\r | |
| 909 | return RETURN_UNSUPPORTED;\r | |
| 910 | }\r | |
| 911 | \r | |
| 912 | *Data = (*Data << 4) + InternalHexCharToUintn (*String);\r | |
| 913 | String++;\r | |
| 914 | }\r | |
| 915 | \r | |
| 916 | if (EndPointer != NULL) {\r | |
| 917 | *EndPointer = (CHAR16 *) String;\r | |
| 918 | }\r | |
| 919 | return RETURN_SUCCESS;\r | |
| 920 | }\r | |
| 921 | \r | |
| 922 | /**\r | |
| 923 | Convert a Null-terminated Unicode hexadecimal string to a value of type\r | |
| 924 | UINT64.\r | |
| 925 | \r | |
| 926 | This function outputs a value of type UINT64 by interpreting the contents of\r | |
| 927 | the Unicode string specified by String as a hexadecimal number. The format of\r | |
| 928 | the input Unicode string String is:\r | |
| 929 | \r | |
| 930 | [spaces][zeros][x][hexadecimal digits].\r | |
| 931 | \r | |
| 932 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r | |
| 933 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r | |
| 934 | If "x" appears in the input string, it must be prefixed with at least one 0.\r | |
| 935 | The function will ignore the pad space, which includes spaces or tab\r | |
| 936 | characters, before [zeros], [x] or [hexadecimal digit]. The running zero\r | |
| 937 | before [x] or [hexadecimal digit] will be ignored. Then, the decoding starts\r | |
| 938 | after [x] or the first valid hexadecimal digit. Then, the function stops at\r | |
| 939 | the first character that is a not a valid hexadecimal character or NULL,\r | |
| 940 | whichever one comes first.\r | |
| 941 | \r | |
| d8af3301 | 942 | If String is not aligned in a 16-bit boundary, then ASSERT().\r |
| d8af3301 HW |
943 | \r |
| 944 | If String has no valid hexadecimal digits in the above format, then 0 is\r | |
| 945 | stored at the location pointed to by Data.\r | |
| 946 | If the number represented by String exceeds the range defined by UINT64, then\r | |
| 947 | MAX_UINT64 is stored at the location pointed to by Data.\r | |
| 948 | \r | |
| 949 | If EndPointer is not NULL, a pointer to the character that stopped the scan\r | |
| 950 | is stored at the location pointed to by EndPointer. If String has no valid\r | |
| 951 | hexadecimal digits right after the optional pad spaces, the value of String\r | |
| 952 | is stored at the location pointed to by EndPointer.\r | |
| 953 | \r | |
| 954 | @param String Pointer to a Null-terminated Unicode string.\r | |
| 955 | @param EndPointer Pointer to character that stops scan.\r | |
| 956 | @param Data Pointer to the converted value.\r | |
| 957 | \r | |
| 958 | @retval RETURN_SUCCESS Value is translated from String.\r | |
| 959 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 960 | If Data is NULL.\r | |
| 961 | If PcdMaximumUnicodeStringLength is not\r | |
| 962 | zero, and String contains more than\r | |
| 963 | PcdMaximumUnicodeStringLength Unicode\r | |
| 964 | characters, not including the\r | |
| 965 | Null-terminator.\r | |
| 966 | @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r | |
| 967 | the range defined by UINT64.\r | |
| 968 | \r | |
| 969 | **/\r | |
| 970 | RETURN_STATUS\r | |
| 971 | EFIAPI\r | |
| 972 | StrHexToUint64S (\r | |
| 973 | IN CONST CHAR16 *String,\r | |
| 974 | OUT CHAR16 **EndPointer, OPTIONAL\r | |
| 975 | OUT UINT64 *Data\r | |
| 976 | )\r | |
| 977 | {\r | |
| 978 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 979 | \r | |
| 980 | //\r | |
| 981 | // 1. Neither String nor Data shall be a null pointer.\r | |
| 982 | //\r | |
| 983 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 984 | SAFE_STRING_CONSTRAINT_CHECK ((Data != NULL), RETURN_INVALID_PARAMETER);\r | |
| 985 | \r | |
| 986 | //\r | |
| 987 | // 2. The length of String shall not be greater than RSIZE_MAX.\r | |
| 988 | //\r | |
| 989 | if (RSIZE_MAX != 0) {\r | |
| 990 | SAFE_STRING_CONSTRAINT_CHECK ((StrnLenS (String, RSIZE_MAX + 1) <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 991 | }\r | |
| 992 | \r | |
| 993 | if (EndPointer != NULL) {\r | |
| 994 | *EndPointer = (CHAR16 *) String;\r | |
| 995 | }\r | |
| 996 | \r | |
| 997 | //\r | |
| 998 | // Ignore the pad spaces (space or tab)\r | |
| 999 | //\r | |
| 1000 | while ((*String == L' ') || (*String == L'\t')) {\r | |
| 1001 | String++;\r | |
| 1002 | }\r | |
| 1003 | \r | |
| 1004 | //\r | |
| 1005 | // Ignore leading Zeros after the spaces\r | |
| 1006 | //\r | |
| 1007 | while (*String == L'0') {\r | |
| 1008 | String++;\r | |
| 1009 | }\r | |
| 1010 | \r | |
| 5dbfa01e | 1011 | if (CharToUpper (*String) == L'X') {\r |
| d8af3301 HW |
1012 | if (*(String - 1) != L'0') {\r |
| 1013 | *Data = 0;\r | |
| 1014 | return RETURN_SUCCESS;\r | |
| 1015 | }\r | |
| 1016 | //\r | |
| 1017 | // Skip the 'X'\r | |
| 1018 | //\r | |
| 1019 | String++;\r | |
| 1020 | }\r | |
| 1021 | \r | |
| 1022 | *Data = 0;\r | |
| 1023 | \r | |
| 1024 | while (InternalIsHexaDecimalDigitCharacter (*String)) {\r | |
| 1025 | //\r | |
| 1026 | // If the number represented by String overflows according to the range\r | |
| 1027 | // defined by UINT64, then MAX_UINT64 is stored in *Data and\r | |
| 1028 | // RETURN_UNSUPPORTED is returned.\r | |
| 1029 | //\r | |
| 1030 | if (*Data > RShiftU64 (MAX_UINT64 - InternalHexCharToUintn (*String), 4)) {\r | |
| 1031 | *Data = MAX_UINT64;\r | |
| 1032 | if (EndPointer != NULL) {\r | |
| 1033 | *EndPointer = (CHAR16 *) String;\r | |
| 1034 | }\r | |
| 1035 | return RETURN_UNSUPPORTED;\r | |
| 1036 | }\r | |
| 1037 | \r | |
| 1038 | *Data = LShiftU64 (*Data, 4) + InternalHexCharToUintn (*String);\r | |
| 1039 | String++;\r | |
| 1040 | }\r | |
| 1041 | \r | |
| 1042 | if (EndPointer != NULL) {\r | |
| 1043 | *EndPointer = (CHAR16 *) String;\r | |
| 1044 | }\r | |
| 1045 | return RETURN_SUCCESS;\r | |
| 1046 | }\r | |
| 1047 | \r | |
| 36396ea2 RN |
1048 | /**\r |
| 1049 | Convert a Null-terminated Unicode string to IPv6 address and prefix length.\r | |
| 1050 | \r | |
| 1051 | This function outputs a value of type IPv6_ADDRESS and may output a value\r | |
| 1052 | of type UINT8 by interpreting the contents of the Unicode string specified\r | |
| 1053 | by String. The format of the input Unicode string String is as follows:\r | |
| 1054 | \r | |
| 1055 | X:X:X:X:X:X:X:X[/P]\r | |
| 1056 | \r | |
| 1057 | X contains one to four hexadecimal digit characters in the range [0-9], [a-f] and\r | |
| 1058 | [A-F]. X is converted to a value of type UINT16, whose low byte is stored in low\r | |
| 1059 | memory address and high byte is stored in high memory address. P contains decimal\r | |
| 1060 | digit characters in the range [0-9]. The running zero in the beginning of P will\r | |
| 1061 | be ignored. /P is optional.\r | |
| 1062 | \r | |
| 1063 | When /P is not in the String, the function stops at the first character that is\r | |
| 1064 | not a valid hexadecimal digit character after eight X's are converted.\r | |
| 1065 | \r | |
| 1066 | When /P is in the String, the function stops at the first character that is not\r | |
| 1067 | a valid decimal digit character after P is converted.\r | |
| 1068 | \r | |
| 1069 | "::" can be used to compress one or more groups of X when X contains only 0.\r | |
| 1070 | The "::" can only appear once in the String.\r | |
| 1071 | \r | |
| 36396ea2 RN |
1072 | If String is not aligned in a 16-bit boundary, then ASSERT().\r |
| 1073 | \r | |
| 36396ea2 RN |
1074 | If EndPointer is not NULL and Address is translated from String, a pointer\r |
| 1075 | to the character that stopped the scan is stored at the location pointed to\r | |
| 1076 | by EndPointer.\r | |
| 1077 | \r | |
| 1078 | @param String Pointer to a Null-terminated Unicode string.\r | |
| 1079 | @param EndPointer Pointer to character that stops scan.\r | |
| 1080 | @param Address Pointer to the converted IPv6 address.\r | |
| 1081 | @param PrefixLength Pointer to the converted IPv6 address prefix\r | |
| 1082 | length. MAX_UINT8 is returned when /P is\r | |
| 1083 | not in the String.\r | |
| 1084 | \r | |
| 1085 | @retval RETURN_SUCCESS Address is translated from String.\r | |
| 1086 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 1087 | If Data is NULL.\r | |
| 1088 | @retval RETURN_UNSUPPORTED If X contains more than four hexadecimal\r | |
| 1089 | digit characters.\r | |
| 1090 | If String contains "::" and number of X\r | |
| 1091 | is not less than 8.\r | |
| 1092 | If P starts with character that is not a\r | |
| 1093 | valid decimal digit character.\r | |
| 1094 | If the decimal number converted from P\r | |
| 1095 | exceeds 128.\r | |
| 1096 | \r | |
| 1097 | **/\r | |
| 1098 | RETURN_STATUS\r | |
| 1099 | EFIAPI\r | |
| 1100 | StrToIpv6Address (\r | |
| 1101 | IN CONST CHAR16 *String,\r | |
| 1102 | OUT CHAR16 **EndPointer, OPTIONAL\r | |
| 1103 | OUT IPv6_ADDRESS *Address,\r | |
| 1104 | OUT UINT8 *PrefixLength OPTIONAL\r | |
| 1105 | )\r | |
| 1106 | {\r | |
| 1107 | RETURN_STATUS Status;\r | |
| 1108 | UINTN AddressIndex;\r | |
| 1109 | UINTN Uintn;\r | |
| 1110 | IPv6_ADDRESS LocalAddress;\r | |
| 1111 | UINT8 LocalPrefixLength;\r | |
| 1112 | CONST CHAR16 *Pointer;\r | |
| 1113 | CHAR16 *End;\r | |
| 1114 | UINTN CompressStart;\r | |
| 1115 | BOOLEAN ExpectPrefix;\r | |
| 1116 | \r | |
| 1117 | LocalPrefixLength = MAX_UINT8;\r | |
| 1118 | CompressStart = ARRAY_SIZE (Address->Addr);\r | |
| 1119 | ExpectPrefix = FALSE;\r | |
| 1120 | \r | |
| 1121 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 1122 | \r | |
| 1123 | //\r | |
| 1124 | // 1. None of String or Guid shall be a null pointer.\r | |
| 1125 | //\r | |
| 1126 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1127 | SAFE_STRING_CONSTRAINT_CHECK ((Address != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1128 | \r | |
| 1129 | for (Pointer = String, AddressIndex = 0; AddressIndex < ARRAY_SIZE (Address->Addr) + 1;) {\r | |
| 1130 | if (!InternalIsHexaDecimalDigitCharacter (*Pointer)) {\r | |
| 1131 | if (*Pointer != L':') {\r | |
| 1132 | //\r | |
| 1133 | // ":" or "/" should be followed by digit characters.\r | |
| 1134 | //\r | |
| 1135 | return RETURN_UNSUPPORTED;\r | |
| 1136 | }\r | |
| 1137 | \r | |
| 1138 | //\r | |
| 1139 | // Meet second ":" after previous ":" or "/"\r | |
| 1140 | // or meet first ":" in the beginning of String.\r | |
| 1141 | //\r | |
| 1142 | if (ExpectPrefix) {\r | |
| 1143 | //\r | |
| 1144 | // ":" shall not be after "/"\r | |
| 1145 | //\r | |
| 1146 | return RETURN_UNSUPPORTED;\r | |
| 1147 | }\r | |
| 1148 | \r | |
| 1149 | if (CompressStart != ARRAY_SIZE (Address->Addr) || AddressIndex == ARRAY_SIZE (Address->Addr)) {\r | |
| 1150 | //\r | |
| 1151 | // "::" can only appear once.\r | |
| 1152 | // "::" can only appear when address is not full length.\r | |
| 1153 | //\r | |
| 1154 | return RETURN_UNSUPPORTED;\r | |
| 1155 | } else {\r | |
| 1156 | //\r | |
| 1157 | // Remember the start of zero compressing.\r | |
| 1158 | //\r | |
| 1159 | CompressStart = AddressIndex;\r | |
| 1160 | Pointer++;\r | |
| 1161 | \r | |
| 1162 | if (CompressStart == 0) {\r | |
| 1163 | if (*Pointer != L':') {\r | |
| 1164 | //\r | |
| 1165 | // Single ":" shall not be in the beginning of String.\r | |
| 1166 | //\r | |
| 1167 | return RETURN_UNSUPPORTED;\r | |
| 1168 | }\r | |
| 1169 | Pointer++;\r | |
| 1170 | }\r | |
| 1171 | }\r | |
| 1172 | }\r | |
| 1173 | \r | |
| 1174 | if (!InternalIsHexaDecimalDigitCharacter (*Pointer)) {\r | |
| 1175 | if (*Pointer == L'/') {\r | |
| 1176 | //\r | |
| 1177 | // Might be optional "/P" after "::".\r | |
| 1178 | //\r | |
| 1179 | if (CompressStart != AddressIndex) {\r | |
| 1180 | return RETURN_UNSUPPORTED;\r | |
| 1181 | }\r | |
| 1182 | } else {\r | |
| 1183 | break;\r | |
| 1184 | }\r | |
| 1185 | } else {\r | |
| 1186 | if (!ExpectPrefix) {\r | |
| 1187 | //\r | |
| 1188 | // Get X.\r | |
| 1189 | //\r | |
| 1190 | Status = StrHexToUintnS (Pointer, &End, &Uintn);\r | |
| 1191 | if (RETURN_ERROR (Status) || End - Pointer > 4) {\r | |
| 1192 | //\r | |
| 1193 | // Number of hexadecimal digit characters is no more than 4.\r | |
| 1194 | //\r | |
| 1195 | return RETURN_UNSUPPORTED;\r | |
| 1196 | }\r | |
| 1197 | Pointer = End;\r | |
| 1198 | //\r | |
| 1199 | // Uintn won't exceed MAX_UINT16 if number of hexadecimal digit characters is no more than 4.\r | |
| 1200 | //\r | |
| 5b0ce08a | 1201 | ASSERT (AddressIndex + 1 < ARRAY_SIZE (Address->Addr));\r |
| 36396ea2 RN |
1202 | LocalAddress.Addr[AddressIndex] = (UINT8) ((UINT16) Uintn >> 8);\r |
| 1203 | LocalAddress.Addr[AddressIndex + 1] = (UINT8) Uintn;\r | |
| 1204 | AddressIndex += 2;\r | |
| 1205 | } else {\r | |
| 1206 | //\r | |
| 1207 | // Get P, then exit the loop.\r | |
| 1208 | //\r | |
| 1209 | Status = StrDecimalToUintnS (Pointer, &End, &Uintn);\r | |
| 1210 | if (RETURN_ERROR (Status) || End == Pointer || Uintn > 128) {\r | |
| 1211 | //\r | |
| 1212 | // Prefix length should not exceed 128.\r | |
| 1213 | //\r | |
| 1214 | return RETURN_UNSUPPORTED;\r | |
| 1215 | }\r | |
| 1216 | LocalPrefixLength = (UINT8) Uintn;\r | |
| 1217 | Pointer = End;\r | |
| 1218 | break;\r | |
| 1219 | }\r | |
| 1220 | }\r | |
| 1221 | \r | |
| 1222 | //\r | |
| 1223 | // Skip ':' or "/"\r | |
| 1224 | //\r | |
| 1225 | if (*Pointer == L'/') {\r | |
| 1226 | ExpectPrefix = TRUE;\r | |
| 1227 | } else if (*Pointer == L':') {\r | |
| 1228 | if (AddressIndex == ARRAY_SIZE (Address->Addr)) {\r | |
| 1229 | //\r | |
| 1230 | // Meet additional ":" after all 8 16-bit address\r | |
| 1231 | //\r | |
| 1232 | break;\r | |
| 1233 | }\r | |
| 1234 | } else {\r | |
| 1235 | //\r | |
| 1236 | // Meet other character that is not "/" or ":" after all 8 16-bit address\r | |
| 1237 | //\r | |
| 1238 | break;\r | |
| 1239 | }\r | |
| 1240 | Pointer++;\r | |
| 1241 | }\r | |
| 1242 | \r | |
| 1243 | if ((AddressIndex == ARRAY_SIZE (Address->Addr) && CompressStart != ARRAY_SIZE (Address->Addr)) ||\r | |
| 1244 | (AddressIndex != ARRAY_SIZE (Address->Addr) && CompressStart == ARRAY_SIZE (Address->Addr))\r | |
| 1245 | ) {\r | |
| 1246 | //\r | |
| 1247 | // Full length of address shall not have compressing zeros.\r | |
| 1248 | // Non-full length of address shall have compressing zeros.\r | |
| 1249 | //\r | |
| 1250 | return RETURN_UNSUPPORTED;\r | |
| 1251 | }\r | |
| 1252 | CopyMem (&Address->Addr[0], &LocalAddress.Addr[0], CompressStart);\r | |
| 1253 | ZeroMem (&Address->Addr[CompressStart], ARRAY_SIZE (Address->Addr) - AddressIndex);\r | |
| 5b0ce08a RN |
1254 | if (AddressIndex > CompressStart) {\r |
| 1255 | CopyMem (\r | |
| 1256 | &Address->Addr[CompressStart + ARRAY_SIZE (Address->Addr) - AddressIndex],\r | |
| 1257 | &LocalAddress.Addr[CompressStart],\r | |
| 1258 | AddressIndex - CompressStart\r | |
| 1259 | );\r | |
| 1260 | }\r | |
| 36396ea2 RN |
1261 | \r |
| 1262 | if (PrefixLength != NULL) {\r | |
| 1263 | *PrefixLength = LocalPrefixLength;\r | |
| 1264 | }\r | |
| 1265 | if (EndPointer != NULL) {\r | |
| 1266 | *EndPointer = (CHAR16 *) Pointer;\r | |
| 1267 | }\r | |
| 1268 | \r | |
| 1269 | return RETURN_SUCCESS;\r | |
| 1270 | }\r | |
| 1271 | \r | |
| 1272 | /**\r | |
| 1273 | Convert a Null-terminated Unicode string to IPv4 address and prefix length.\r | |
| 1274 | \r | |
| 1275 | This function outputs a value of type IPv4_ADDRESS and may output a value\r | |
| 1276 | of type UINT8 by interpreting the contents of the Unicode string specified\r | |
| 1277 | by String. The format of the input Unicode string String is as follows:\r | |
| 1278 | \r | |
| 1279 | D.D.D.D[/P]\r | |
| 1280 | \r | |
| 1281 | D and P are decimal digit characters in the range [0-9]. The running zero in\r | |
| 1282 | the beginning of D and P will be ignored. /P is optional.\r | |
| 1283 | \r | |
| 1284 | When /P is not in the String, the function stops at the first character that is\r | |
| 1285 | not a valid decimal digit character after four D's are converted.\r | |
| 1286 | \r | |
| 1287 | When /P is in the String, the function stops at the first character that is not\r | |
| 1288 | a valid decimal digit character after P is converted.\r | |
| 1289 | \r | |
| 36396ea2 RN |
1290 | If String is not aligned in a 16-bit boundary, then ASSERT().\r |
| 1291 | \r | |
| 36396ea2 RN |
1292 | If EndPointer is not NULL and Address is translated from String, a pointer\r |
| 1293 | to the character that stopped the scan is stored at the location pointed to\r | |
| 1294 | by EndPointer.\r | |
| 1295 | \r | |
| 1296 | @param String Pointer to a Null-terminated Unicode string.\r | |
| 1297 | @param EndPointer Pointer to character that stops scan.\r | |
| 1298 | @param Address Pointer to the converted IPv4 address.\r | |
| 1299 | @param PrefixLength Pointer to the converted IPv4 address prefix\r | |
| 1300 | length. MAX_UINT8 is returned when /P is\r | |
| 1301 | not in the String.\r | |
| 1302 | \r | |
| 1303 | @retval RETURN_SUCCESS Address is translated from String.\r | |
| 1304 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 1305 | If Data is NULL.\r | |
| 1306 | @retval RETURN_UNSUPPORTED If String is not in the correct format.\r | |
| 1307 | If any decimal number converted from D\r | |
| 1308 | exceeds 255.\r | |
| 1309 | If the decimal number converted from P\r | |
| 1310 | exceeds 32.\r | |
| 1311 | \r | |
| 1312 | **/\r | |
| 1313 | RETURN_STATUS\r | |
| 1314 | EFIAPI\r | |
| 1315 | StrToIpv4Address (\r | |
| 1316 | IN CONST CHAR16 *String,\r | |
| 1317 | OUT CHAR16 **EndPointer, OPTIONAL\r | |
| 1318 | OUT IPv4_ADDRESS *Address,\r | |
| 1319 | OUT UINT8 *PrefixLength OPTIONAL\r | |
| 1320 | )\r | |
| 1321 | {\r | |
| 1322 | RETURN_STATUS Status;\r | |
| 1323 | UINTN AddressIndex;\r | |
| 1324 | UINTN Uintn;\r | |
| 1325 | IPv4_ADDRESS LocalAddress;\r | |
| 1326 | UINT8 LocalPrefixLength;\r | |
| 1327 | CHAR16 *Pointer;\r | |
| 1328 | \r | |
| 1329 | LocalPrefixLength = MAX_UINT8;\r | |
| 1330 | \r | |
| 1331 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 1332 | \r | |
| 1333 | //\r | |
| 1334 | // 1. None of String or Guid shall be a null pointer.\r | |
| 1335 | //\r | |
| 1336 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1337 | SAFE_STRING_CONSTRAINT_CHECK ((Address != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1338 | \r | |
| 1339 | for (Pointer = (CHAR16 *) String, AddressIndex = 0; AddressIndex < ARRAY_SIZE (Address->Addr) + 1;) {\r | |
| 1340 | if (!InternalIsDecimalDigitCharacter (*Pointer)) {\r | |
| 1341 | //\r | |
| 1342 | // D or P contains invalid characters.\r | |
| 1343 | //\r | |
| 1344 | break;\r | |
| 1345 | }\r | |
| 1346 | \r | |
| 1347 | //\r | |
| 1348 | // Get D or P.\r | |
| 1349 | //\r | |
| 1350 | Status = StrDecimalToUintnS ((CONST CHAR16 *) Pointer, &Pointer, &Uintn);\r | |
| 1351 | if (RETURN_ERROR (Status)) {\r | |
| 1352 | return RETURN_UNSUPPORTED;\r | |
| 1353 | }\r | |
| 1354 | if (AddressIndex == ARRAY_SIZE (Address->Addr)) {\r | |
| 1355 | //\r | |
| 1356 | // It's P.\r | |
| 1357 | //\r | |
| 1358 | if (Uintn > 32) {\r | |
| 1359 | return RETURN_UNSUPPORTED;\r | |
| 1360 | }\r | |
| 1361 | LocalPrefixLength = (UINT8) Uintn;\r | |
| 1362 | } else {\r | |
| 1363 | //\r | |
| 1364 | // It's D.\r | |
| 1365 | //\r | |
| 1366 | if (Uintn > MAX_UINT8) {\r | |
| 1367 | return RETURN_UNSUPPORTED;\r | |
| 1368 | }\r | |
| 1369 | LocalAddress.Addr[AddressIndex] = (UINT8) Uintn;\r | |
| 1370 | AddressIndex++;\r | |
| 1371 | }\r | |
| 1372 | \r | |
| 1373 | //\r | |
| 1374 | // Check the '.' or '/', depending on the AddressIndex.\r | |
| 1375 | //\r | |
| 1376 | if (AddressIndex == ARRAY_SIZE (Address->Addr)) {\r | |
| 1377 | if (*Pointer == L'/') {\r | |
| 1378 | //\r | |
| 1379 | // '/P' is in the String.\r | |
| 1380 | // Skip "/" and get P in next loop.\r | |
| 1381 | //\r | |
| 1382 | Pointer++;\r | |
| 1383 | } else {\r | |
| 1384 | //\r | |
| 1385 | // '/P' is not in the String.\r | |
| 1386 | //\r | |
| 1387 | break;\r | |
| 1388 | }\r | |
| 1389 | } else if (AddressIndex < ARRAY_SIZE (Address->Addr)) {\r | |
| 1390 | if (*Pointer == L'.') {\r | |
| 1391 | //\r | |
| 1392 | // D should be followed by '.'\r | |
| 1393 | //\r | |
| 1394 | Pointer++;\r | |
| 1395 | } else {\r | |
| 1396 | return RETURN_UNSUPPORTED;\r | |
| 1397 | }\r | |
| 1398 | }\r | |
| 1399 | }\r | |
| 1400 | \r | |
| 1401 | if (AddressIndex < ARRAY_SIZE (Address->Addr)) {\r | |
| 1402 | return RETURN_UNSUPPORTED;\r | |
| 1403 | }\r | |
| 1404 | \r | |
| 1405 | CopyMem (Address, &LocalAddress, sizeof (*Address));\r | |
| 1406 | if (PrefixLength != NULL) {\r | |
| 1407 | *PrefixLength = LocalPrefixLength;\r | |
| 1408 | }\r | |
| 1409 | if (EndPointer != NULL) {\r | |
| 1410 | *EndPointer = Pointer;\r | |
| 1411 | }\r | |
| 1412 | \r | |
| 1413 | return RETURN_SUCCESS;\r | |
| 1414 | }\r | |
| 1415 | \r | |
| 1416 | /**\r | |
| 1417 | Convert a Null-terminated Unicode GUID string to a value of type\r | |
| 1418 | EFI_GUID.\r | |
| 1419 | \r | |
| 1420 | This function outputs a GUID value by interpreting the contents of\r | |
| 1421 | the Unicode string specified by String. The format of the input\r | |
| 1422 | Unicode string String consists of 36 characters, as follows:\r | |
| 1423 | \r | |
| 1424 | aabbccdd-eeff-gghh-iijj-kkllmmnnoopp\r | |
| 1425 | \r | |
| 1426 | The pairs aa - pp are two characters in the range [0-9], [a-f] and\r | |
| 1427 | [A-F], with each pair representing a single byte hexadecimal value.\r | |
| 1428 | \r | |
| 1429 | The mapping between String and the EFI_GUID structure is as follows:\r | |
| 1430 | aa Data1[24:31]\r | |
| 1431 | bb Data1[16:23]\r | |
| 1432 | cc Data1[8:15]\r | |
| 1433 | dd Data1[0:7]\r | |
| 1434 | ee Data2[8:15]\r | |
| 1435 | ff Data2[0:7]\r | |
| 1436 | gg Data3[8:15]\r | |
| 1437 | hh Data3[0:7]\r | |
| 1438 | ii Data4[0:7]\r | |
| 1439 | jj Data4[8:15]\r | |
| 1440 | kk Data4[16:23]\r | |
| 1441 | ll Data4[24:31]\r | |
| 1442 | mm Data4[32:39]\r | |
| 1443 | nn Data4[40:47]\r | |
| 1444 | oo Data4[48:55]\r | |
| 1445 | pp Data4[56:63]\r | |
| 1446 | \r | |
| 36396ea2 RN |
1447 | If String is not aligned in a 16-bit boundary, then ASSERT().\r |
| 1448 | \r | |
| 1449 | @param String Pointer to a Null-terminated Unicode string.\r | |
| 1450 | @param Guid Pointer to the converted GUID.\r | |
| 1451 | \r | |
| 1452 | @retval RETURN_SUCCESS Guid is translated from String.\r | |
| 1453 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 1454 | If Data is NULL.\r | |
| 1455 | @retval RETURN_UNSUPPORTED If String is not as the above format.\r | |
| 1456 | \r | |
| 1457 | **/\r | |
| 1458 | RETURN_STATUS\r | |
| 1459 | EFIAPI\r | |
| 1460 | StrToGuid (\r | |
| 1461 | IN CONST CHAR16 *String,\r | |
| 1462 | OUT GUID *Guid\r | |
| 1463 | )\r | |
| 1464 | {\r | |
| 1465 | RETURN_STATUS Status;\r | |
| 1466 | GUID LocalGuid;\r | |
| 1467 | \r | |
| 1468 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 1469 | \r | |
| 1470 | //\r | |
| 1471 | // 1. None of String or Guid shall be a null pointer.\r | |
| 1472 | //\r | |
| 1473 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1474 | SAFE_STRING_CONSTRAINT_CHECK ((Guid != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1475 | \r | |
| 1476 | //\r | |
| 1477 | // Get aabbccdd in big-endian.\r | |
| 1478 | //\r | |
| 1479 | Status = StrHexToBytes (String, 2 * sizeof (LocalGuid.Data1), (UINT8 *) &LocalGuid.Data1, sizeof (LocalGuid.Data1));\r | |
| 1480 | if (RETURN_ERROR (Status) || String[2 * sizeof (LocalGuid.Data1)] != L'-') {\r | |
| 1481 | return RETURN_UNSUPPORTED;\r | |
| 1482 | }\r | |
| 1483 | //\r | |
| 1484 | // Convert big-endian to little-endian.\r | |
| 1485 | //\r | |
| 1486 | LocalGuid.Data1 = SwapBytes32 (LocalGuid.Data1);\r | |
| 1487 | String += 2 * sizeof (LocalGuid.Data1) + 1;\r | |
| 1488 | \r | |
| 1489 | //\r | |
| 1490 | // Get eeff in big-endian.\r | |
| 1491 | //\r | |
| 1492 | Status = StrHexToBytes (String, 2 * sizeof (LocalGuid.Data2), (UINT8 *) &LocalGuid.Data2, sizeof (LocalGuid.Data2));\r | |
| 1493 | if (RETURN_ERROR (Status) || String[2 * sizeof (LocalGuid.Data2)] != L'-') {\r | |
| 1494 | return RETURN_UNSUPPORTED;\r | |
| 1495 | }\r | |
| 1496 | //\r | |
| 1497 | // Convert big-endian to little-endian.\r | |
| 1498 | //\r | |
| 1499 | LocalGuid.Data2 = SwapBytes16 (LocalGuid.Data2);\r | |
| 1500 | String += 2 * sizeof (LocalGuid.Data2) + 1;\r | |
| 1501 | \r | |
| 1502 | //\r | |
| 1503 | // Get gghh in big-endian.\r | |
| 1504 | //\r | |
| 1505 | Status = StrHexToBytes (String, 2 * sizeof (LocalGuid.Data3), (UINT8 *) &LocalGuid.Data3, sizeof (LocalGuid.Data3));\r | |
| 1506 | if (RETURN_ERROR (Status) || String[2 * sizeof (LocalGuid.Data3)] != L'-') {\r | |
| 1507 | return RETURN_UNSUPPORTED;\r | |
| 1508 | }\r | |
| 1509 | //\r | |
| 1510 | // Convert big-endian to little-endian.\r | |
| 1511 | //\r | |
| 1512 | LocalGuid.Data3 = SwapBytes16 (LocalGuid.Data3);\r | |
| 1513 | String += 2 * sizeof (LocalGuid.Data3) + 1;\r | |
| 1514 | \r | |
| 1515 | //\r | |
| 1516 | // Get iijj.\r | |
| 1517 | //\r | |
| 1518 | Status = StrHexToBytes (String, 2 * 2, &LocalGuid.Data4[0], 2);\r | |
| 1519 | if (RETURN_ERROR (Status) || String[2 * 2] != L'-') {\r | |
| 1520 | return RETURN_UNSUPPORTED;\r | |
| 1521 | }\r | |
| 1522 | String += 2 * 2 + 1;\r | |
| 1523 | \r | |
| 1524 | //\r | |
| 1525 | // Get kkllmmnnoopp.\r | |
| 1526 | //\r | |
| 1527 | Status = StrHexToBytes (String, 2 * 6, &LocalGuid.Data4[2], 6);\r | |
| 1528 | if (RETURN_ERROR (Status)) {\r | |
| 1529 | return RETURN_UNSUPPORTED;\r | |
| 1530 | }\r | |
| 1531 | \r | |
| 1532 | CopyGuid (Guid, &LocalGuid);\r | |
| 1533 | return RETURN_SUCCESS;\r | |
| 1534 | }\r | |
| 1535 | \r | |
| 1536 | /**\r | |
| 1537 | Convert a Null-terminated Unicode hexadecimal string to a byte array.\r | |
| 1538 | \r | |
| 1539 | This function outputs a byte array by interpreting the contents of\r | |
| 1540 | the Unicode string specified by String in hexadecimal format. The format of\r | |
| 1541 | the input Unicode string String is:\r | |
| 1542 | \r | |
| 1543 | [XX]*\r | |
| 1544 | \r | |
| 1545 | X is a hexadecimal digit character in the range [0-9], [a-f] and [A-F].\r | |
| 1546 | The function decodes every two hexadecimal digit characters as one byte. The\r | |
| 1547 | decoding stops after Length of characters and outputs Buffer containing\r | |
| 1548 | (Length / 2) bytes.\r | |
| 1549 | \r | |
| 1550 | If String is not aligned in a 16-bit boundary, then ASSERT().\r | |
| 1551 | \r | |
| 36396ea2 RN |
1552 | @param String Pointer to a Null-terminated Unicode string.\r |
| 1553 | @param Length The number of Unicode characters to decode.\r | |
| 1554 | @param Buffer Pointer to the converted bytes array.\r | |
| 1555 | @param MaxBufferSize The maximum size of Buffer.\r | |
| 1556 | \r | |
| 1557 | @retval RETURN_SUCCESS Buffer is translated from String.\r | |
| 1558 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 1559 | If Data is NULL.\r | |
| 1560 | If Length is not multiple of 2.\r | |
| 1561 | If PcdMaximumUnicodeStringLength is not zero,\r | |
| 1562 | and Length is greater than\r | |
| 1563 | PcdMaximumUnicodeStringLength.\r | |
| 1564 | @retval RETURN_UNSUPPORTED If Length of characters from String contain\r | |
| 1565 | a character that is not valid hexadecimal\r | |
| 1566 | digit characters, or a Null-terminator.\r | |
| 1567 | @retval RETURN_BUFFER_TOO_SMALL If MaxBufferSize is less than (Length / 2).\r | |
| 1568 | **/\r | |
| 1569 | RETURN_STATUS\r | |
| 1570 | EFIAPI\r | |
| 1571 | StrHexToBytes (\r | |
| 1572 | IN CONST CHAR16 *String,\r | |
| 1573 | IN UINTN Length,\r | |
| 1574 | OUT UINT8 *Buffer,\r | |
| 1575 | IN UINTN MaxBufferSize\r | |
| 1576 | )\r | |
| 1577 | {\r | |
| 1578 | UINTN Index;\r | |
| 1579 | \r | |
| 1580 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
| 1581 | \r | |
| 1582 | //\r | |
| 1583 | // 1. None of String or Buffer shall be a null pointer.\r | |
| 1584 | //\r | |
| 1585 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1586 | SAFE_STRING_CONSTRAINT_CHECK ((Buffer != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1587 | \r | |
| 1588 | //\r | |
| 1589 | // 2. Length shall not be greater than RSIZE_MAX.\r | |
| 1590 | //\r | |
| 1591 | if (RSIZE_MAX != 0) {\r | |
| 1592 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 1593 | }\r | |
| 1594 | \r | |
| 1595 | //\r | |
| 1596 | // 3. Length shall not be odd.\r | |
| 1597 | //\r | |
| 1598 | SAFE_STRING_CONSTRAINT_CHECK (((Length & BIT0) == 0), RETURN_INVALID_PARAMETER);\r | |
| 1599 | \r | |
| 1600 | //\r | |
| 1601 | // 4. MaxBufferSize shall equal to or greater than Length / 2.\r | |
| 1602 | //\r | |
| 1603 | SAFE_STRING_CONSTRAINT_CHECK ((MaxBufferSize >= Length / 2), RETURN_BUFFER_TOO_SMALL);\r | |
| 1604 | \r | |
| 1605 | //\r | |
| 1606 | // 5. String shall not contains invalid hexadecimal digits.\r | |
| 1607 | //\r | |
| 1608 | for (Index = 0; Index < Length; Index++) {\r | |
| 1609 | if (!InternalIsHexaDecimalDigitCharacter (String[Index])) {\r | |
| 1610 | break;\r | |
| 1611 | }\r | |
| 1612 | }\r | |
| 1613 | if (Index != Length) {\r | |
| 1614 | return RETURN_UNSUPPORTED;\r | |
| 1615 | }\r | |
| 1616 | \r | |
| 1617 | //\r | |
| 1618 | // Convert the hex string to bytes.\r | |
| 1619 | //\r | |
| 1620 | for(Index = 0; Index < Length; Index++) {\r | |
| 1621 | \r | |
| 1622 | //\r | |
| 1623 | // For even characters, write the upper nibble for each buffer byte,\r | |
| 1624 | // and for even characters, the lower nibble.\r | |
| 1625 | //\r | |
| 1626 | if ((Index & BIT0) == 0) {\r | |
| 1627 | Buffer[Index / 2] = (UINT8) InternalHexCharToUintn (String[Index]) << 4;\r | |
| 1628 | } else {\r | |
| 1629 | Buffer[Index / 2] |= (UINT8) InternalHexCharToUintn (String[Index]);\r | |
| 1630 | }\r | |
| 1631 | }\r | |
| 1632 | return RETURN_SUCCESS;\r | |
| 1633 | }\r | |
| 1634 | \r | |
| c058d59f JY |
1635 | /**\r |
| 1636 | Returns the length of a Null-terminated Ascii string.\r | |
| 1637 | \r | |
| 328f84b1 JY |
1638 | This function is similar as strlen_s defined in C11.\r |
| 1639 | \r | |
| c058d59f JY |
1640 | @param String A pointer to a Null-terminated Ascii string.\r |
| 1641 | @param MaxSize The maximum number of Destination Ascii\r | |
| 1642 | char, including terminating null char.\r | |
| 1643 | \r | |
| 1644 | @retval 0 If String is NULL.\r | |
| 1645 | @retval MaxSize If there is no null character in the first MaxSize characters of String.\r | |
| 1646 | @return The number of characters that percede the terminating null character.\r | |
| 1647 | \r | |
| 1648 | **/\r | |
| 1649 | UINTN\r | |
| 1650 | EFIAPI\r | |
| 1651 | AsciiStrnLenS (\r | |
| 1652 | IN CONST CHAR8 *String,\r | |
| 1653 | IN UINTN MaxSize\r | |
| 1654 | )\r | |
| 1655 | {\r | |
| 1656 | UINTN Length;\r | |
| 1657 | \r | |
| 1658 | //\r | |
| cb867499 | 1659 | // If String is a null pointer or MaxSize is 0, then the AsciiStrnLenS function returns zero.\r |
| c058d59f | 1660 | //\r |
| cb867499 | 1661 | if ((String == NULL) || (MaxSize == 0)) {\r |
| c058d59f JY |
1662 | return 0;\r |
| 1663 | }\r | |
| 1664 | \r | |
| 1665 | //\r | |
| 1666 | // Otherwise, the AsciiStrnLenS function returns the number of characters that precede the\r | |
| 1667 | // terminating null character. If there is no null character in the first MaxSize characters of\r | |
| 1668 | // String then AsciiStrnLenS returns MaxSize. At most the first MaxSize characters of String shall\r | |
| 1669 | // be accessed by AsciiStrnLenS.\r | |
| 1670 | //\r | |
| c07c517c HW |
1671 | Length = 0;\r |
| 1672 | while (String[Length] != 0) {\r | |
| 1673 | if (Length >= MaxSize - 1) {\r | |
| 1674 | return MaxSize;\r | |
| 1675 | }\r | |
| 1676 | Length++;\r | |
| c058d59f JY |
1677 | }\r |
| 1678 | return Length;\r | |
| 1679 | }\r | |
| 1680 | \r | |
| b590e43a HW |
1681 | /**\r |
| 1682 | Returns the size of a Null-terminated Ascii string in bytes, including the\r | |
| 1683 | Null terminator.\r | |
| 1684 | \r | |
| 1685 | This function returns the size of the Null-terminated Ascii string specified\r | |
| 1686 | by String in bytes, including the Null terminator.\r | |
| 1687 | \r | |
| 1688 | @param String A pointer to a Null-terminated Ascii string.\r | |
| 1689 | @param MaxSize The maximum number of Destination Ascii\r | |
| 1690 | char, including the Null terminator.\r | |
| 1691 | \r | |
| 1692 | @retval 0 If String is NULL.\r | |
| 1693 | @retval (sizeof (CHAR8) * (MaxSize + 1))\r | |
| 1694 | If there is no Null terminator in the first MaxSize characters of\r | |
| 1695 | String.\r | |
| 1696 | @return The size of the Null-terminated Ascii string in bytes, including the\r | |
| 1697 | Null terminator.\r | |
| 1698 | \r | |
| 1699 | **/\r | |
| 1700 | UINTN\r | |
| 1701 | EFIAPI\r | |
| 1702 | AsciiStrnSizeS (\r | |
| 1703 | IN CONST CHAR8 *String,\r | |
| 1704 | IN UINTN MaxSize\r | |
| 1705 | )\r | |
| 1706 | {\r | |
| 1707 | //\r | |
| 1708 | // If String is a null pointer, then the AsciiStrnSizeS function returns\r | |
| 1709 | // zero.\r | |
| 1710 | //\r | |
| 1711 | if (String == NULL) {\r | |
| 1712 | return 0;\r | |
| 1713 | }\r | |
| 1714 | \r | |
| 1715 | //\r | |
| 1716 | // Otherwise, the AsciiStrnSizeS function returns the size of the\r | |
| 1717 | // Null-terminated Ascii string in bytes, including the Null terminator. If\r | |
| 1718 | // there is no Null terminator in the first MaxSize characters of String,\r | |
| 1719 | // then AsciiStrnSizeS returns (sizeof (CHAR8) * (MaxSize + 1)) to keep a\r | |
| 1720 | // consistent map with the AsciiStrnLenS function.\r | |
| 1721 | //\r | |
| 1722 | return (AsciiStrnLenS (String, MaxSize) + 1) * sizeof (*String);\r | |
| 1723 | }\r | |
| 1724 | \r | |
| c058d59f JY |
1725 | /**\r |
| 1726 | Copies the string pointed to by Source (including the terminating null char)\r | |
| 1727 | to the array pointed to by Destination.\r | |
| 1728 | \r | |
| 328f84b1 JY |
1729 | This function is similar as strcpy_s defined in C11.\r |
| 1730 | \r | |
| 328f84b1 JY |
1731 | If an error is returned, then the Destination is unmodified.\r |
| 1732 | \r | |
| c058d59f JY |
1733 | @param Destination A pointer to a Null-terminated Ascii string.\r |
| 1734 | @param DestMax The maximum number of Destination Ascii\r | |
| 1735 | char, including terminating null char.\r | |
| 1736 | @param Source A pointer to a Null-terminated Ascii string.\r | |
| 1737 | \r | |
| 1738 | @retval RETURN_SUCCESS String is copied.\r | |
| 1739 | @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r | |
| 1740 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 1741 | If Source is NULL.\r | |
| 1742 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 973f8862 | 1743 | and DestMax is greater than\r |
| c058d59f JY |
1744 | PcdMaximumAsciiStringLength.\r |
| 1745 | If DestMax is 0.\r | |
| 1746 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 1747 | **/\r | |
| 1748 | RETURN_STATUS\r | |
| 1749 | EFIAPI\r | |
| 1750 | AsciiStrCpyS (\r | |
| 1751 | OUT CHAR8 *Destination,\r | |
| 1752 | IN UINTN DestMax,\r | |
| 1753 | IN CONST CHAR8 *Source\r | |
| 1754 | )\r | |
| 1755 | {\r | |
| 1756 | UINTN SourceLen;\r | |
| 973f8862 | 1757 | \r |
| c058d59f JY |
1758 | //\r |
| 1759 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 1760 | //\r | |
| 1761 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1762 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1763 | \r | |
| 1764 | //\r | |
| 1765 | // 2. DestMax shall not be greater than ASCII_RSIZE_MAX.\r | |
| 1766 | //\r | |
| 1767 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 1768 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 1769 | }\r | |
| 1770 | \r | |
| 1771 | //\r | |
| 1772 | // 3. DestMax shall not equal zero.\r | |
| 1773 | //\r | |
| 1774 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 1775 | \r | |
| 1776 | //\r | |
| 1777 | // 4. DestMax shall be greater than AsciiStrnLenS(Source, DestMax).\r | |
| 1778 | //\r | |
| 1779 | SourceLen = AsciiStrnLenS (Source, DestMax);\r | |
| 1780 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 1781 | \r | |
| 1782 | //\r | |
| 1783 | // 5. Copying shall not take place between objects that overlap.\r | |
| 1784 | //\r | |
| 1785 | SAFE_STRING_CONSTRAINT_CHECK (InternalSafeStringNoAsciiStrOverlap (Destination, DestMax, (CHAR8 *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 1786 | \r | |
| 1787 | //\r | |
| 1788 | // The AsciiStrCpyS function copies the string pointed to by Source (including the terminating\r | |
| 1789 | // null character) into the array pointed to by Destination.\r | |
| 1790 | //\r | |
| 1791 | while (*Source != 0) {\r | |
| 1792 | *(Destination++) = *(Source++);\r | |
| 1793 | }\r | |
| 1794 | *Destination = 0;\r | |
| 1795 | \r | |
| 1796 | return RETURN_SUCCESS;\r | |
| 1797 | }\r | |
| 1798 | \r | |
| 1799 | /**\r | |
| 1800 | Copies not more than Length successive char from the string pointed to by\r | |
| 1801 | Source to the array pointed to by Destination. If no null char is copied from\r | |
| 1802 | Source, then Destination[Length] is always set to null.\r | |
| 1803 | \r | |
| 328f84b1 JY |
1804 | This function is similar as strncpy_s defined in C11.\r |
| 1805 | \r | |
| 328f84b1 JY |
1806 | If an error is returned, then the Destination is unmodified.\r |
| 1807 | \r | |
| c058d59f JY |
1808 | @param Destination A pointer to a Null-terminated Ascii string.\r |
| 1809 | @param DestMax The maximum number of Destination Ascii\r | |
| 1810 | char, including terminating null char.\r | |
| 1811 | @param Source A pointer to a Null-terminated Ascii string.\r | |
| 1812 | @param Length The maximum number of Ascii characters to copy.\r | |
| 1813 | \r | |
| 1814 | @retval RETURN_SUCCESS String is copied.\r | |
| 973f8862 | 1815 | @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than\r |
| c058d59f JY |
1816 | MIN(StrLen(Source), Length).\r |
| 1817 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 1818 | If Source is NULL.\r | |
| 1819 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 973f8862 | 1820 | and DestMax is greater than\r |
| c058d59f JY |
1821 | PcdMaximumAsciiStringLength.\r |
| 1822 | If DestMax is 0.\r | |
| 1823 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 1824 | **/\r | |
| 1825 | RETURN_STATUS\r | |
| 1826 | EFIAPI\r | |
| 1827 | AsciiStrnCpyS (\r | |
| 1828 | OUT CHAR8 *Destination,\r | |
| 1829 | IN UINTN DestMax,\r | |
| 1830 | IN CONST CHAR8 *Source,\r | |
| 1831 | IN UINTN Length\r | |
| 1832 | )\r | |
| 1833 | {\r | |
| 1834 | UINTN SourceLen;\r | |
| 1835 | \r | |
| 1836 | //\r | |
| 1837 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 1838 | //\r | |
| 1839 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1840 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1841 | \r | |
| 1842 | //\r | |
| 1843 | // 2. Neither DestMax nor Length shall be greater than ASCII_RSIZE_MAX\r | |
| 1844 | //\r | |
| 1845 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 1846 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 1847 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 1848 | }\r | |
| 1849 | \r | |
| 1850 | //\r | |
| 1851 | // 3. DestMax shall not equal zero.\r | |
| 1852 | //\r | |
| 1853 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 1854 | \r | |
| 1855 | //\r | |
| 1856 | // 4. If Length is not less than DestMax, then DestMax shall be greater than AsciiStrnLenS(Source, DestMax).\r | |
| 1857 | //\r | |
| 56658c22 | 1858 | SourceLen = AsciiStrnLenS (Source, MIN (DestMax, Length));\r |
| c058d59f JY |
1859 | if (Length >= DestMax) {\r |
| 1860 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 1861 | }\r | |
| 1862 | \r | |
| 1863 | //\r | |
| 1864 | // 5. Copying shall not take place between objects that overlap.\r | |
| 1865 | //\r | |
| 1866 | if (SourceLen > Length) {\r | |
| 1867 | SourceLen = Length;\r | |
| 1868 | }\r | |
| 1869 | SAFE_STRING_CONSTRAINT_CHECK (InternalSafeStringNoAsciiStrOverlap (Destination, DestMax, (CHAR8 *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 1870 | \r | |
| 1871 | //\r | |
| 1872 | // The AsciiStrnCpyS function copies not more than Length successive characters (characters that\r | |
| 1873 | // follow a null character are not copied) from the array pointed to by Source to the array\r | |
| 1874 | // pointed to by Destination. If no null character was copied from Source, then Destination[Length] is set to a null\r | |
| 1875 | // character.\r | |
| 1876 | //\r | |
| 56658c22 | 1877 | while ((SourceLen > 0) && (*Source != 0)) {\r |
| c058d59f JY |
1878 | *(Destination++) = *(Source++);\r |
| 1879 | SourceLen--;\r | |
| 1880 | }\r | |
| 1881 | *Destination = 0;\r | |
| 1882 | \r | |
| 1883 | return RETURN_SUCCESS;\r | |
| 1884 | }\r | |
| 1885 | \r | |
| 1886 | /**\r | |
| 1887 | Appends a copy of the string pointed to by Source (including the terminating\r | |
| 1888 | null char) to the end of the string pointed to by Destination.\r | |
| 1889 | \r | |
| 328f84b1 JY |
1890 | This function is similar as strcat_s defined in C11.\r |
| 1891 | \r | |
| 328f84b1 JY |
1892 | If an error is returned, then the Destination is unmodified.\r |
| 1893 | \r | |
| c058d59f JY |
1894 | @param Destination A pointer to a Null-terminated Ascii string.\r |
| 1895 | @param DestMax The maximum number of Destination Ascii\r | |
| 1896 | char, including terminating null char.\r | |
| 1897 | @param Source A pointer to a Null-terminated Ascii string.\r | |
| 1898 | \r | |
| 1899 | @retval RETURN_SUCCESS String is appended.\r | |
| 973f8862 | 1900 | @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r |
| c058d59f JY |
1901 | StrLen(Destination).\r |
| 1902 | @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r | |
| 1903 | greater than StrLen(Source).\r | |
| 1904 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 1905 | If Source is NULL.\r | |
| 1906 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 973f8862 | 1907 | and DestMax is greater than\r |
| c058d59f JY |
1908 | PcdMaximumAsciiStringLength.\r |
| 1909 | If DestMax is 0.\r | |
| 1910 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 1911 | **/\r | |
| 1912 | RETURN_STATUS\r | |
| 1913 | EFIAPI\r | |
| 1914 | AsciiStrCatS (\r | |
| 1915 | IN OUT CHAR8 *Destination,\r | |
| 1916 | IN UINTN DestMax,\r | |
| 1917 | IN CONST CHAR8 *Source\r | |
| 1918 | )\r | |
| 1919 | {\r | |
| 1920 | UINTN DestLen;\r | |
| 1921 | UINTN CopyLen;\r | |
| 1922 | UINTN SourceLen;\r | |
| 973f8862 | 1923 | \r |
| c058d59f JY |
1924 | //\r |
| 1925 | // Let CopyLen denote the value DestMax - AsciiStrnLenS(Destination, DestMax) upon entry to AsciiStrCatS.\r | |
| 1926 | //\r | |
| 1927 | DestLen = AsciiStrnLenS (Destination, DestMax);\r | |
| 1928 | CopyLen = DestMax - DestLen;\r | |
| 1929 | \r | |
| 1930 | //\r | |
| 1931 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 1932 | //\r | |
| 1933 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1934 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 1935 | \r | |
| 1936 | //\r | |
| 1937 | // 2. DestMax shall not be greater than ASCII_RSIZE_MAX.\r | |
| 1938 | //\r | |
| 1939 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 1940 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 1941 | }\r | |
| 1942 | \r | |
| 1943 | //\r | |
| 1944 | // 3. DestMax shall not equal zero.\r | |
| 1945 | //\r | |
| 1946 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 1947 | \r | |
| 1948 | //\r | |
| 1949 | // 4. CopyLen shall not equal zero.\r | |
| 1950 | //\r | |
| 1951 | SAFE_STRING_CONSTRAINT_CHECK ((CopyLen != 0), RETURN_BAD_BUFFER_SIZE);\r | |
| 1952 | \r | |
| 1953 | //\r | |
| 1954 | // 5. CopyLen shall be greater than AsciiStrnLenS(Source, CopyLen).\r | |
| 1955 | //\r | |
| 1956 | SourceLen = AsciiStrnLenS (Source, CopyLen);\r | |
| 1957 | SAFE_STRING_CONSTRAINT_CHECK ((CopyLen > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 1958 | \r | |
| 1959 | //\r | |
| 1960 | // 6. Copying shall not take place between objects that overlap.\r | |
| 1961 | //\r | |
| 1962 | SAFE_STRING_CONSTRAINT_CHECK (InternalSafeStringNoAsciiStrOverlap (Destination, DestMax, (CHAR8 *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 1963 | \r | |
| 1964 | //\r | |
| 1965 | // The AsciiStrCatS function appends a copy of the string pointed to by Source (including the\r | |
| 1966 | // terminating null character) to the end of the string pointed to by Destination. The initial character\r | |
| 1967 | // from Source overwrites the null character at the end of Destination.\r | |
| 1968 | //\r | |
| 1969 | Destination = Destination + DestLen;\r | |
| 1970 | while (*Source != 0) {\r | |
| 1971 | *(Destination++) = *(Source++);\r | |
| 1972 | }\r | |
| 1973 | *Destination = 0;\r | |
| 1974 | \r | |
| 1975 | return RETURN_SUCCESS;\r | |
| 1976 | }\r | |
| 1977 | \r | |
| 1978 | /**\r | |
| 1979 | Appends not more than Length successive char from the string pointed to by\r | |
| 1980 | Source to the end of the string pointed to by Destination. If no null char is\r | |
| 1981 | copied from Source, then Destination[StrLen(Destination) + Length] is always\r | |
| 1982 | set to null.\r | |
| 1983 | \r | |
| 328f84b1 JY |
1984 | This function is similar as strncat_s defined in C11.\r |
| 1985 | \r | |
| 328f84b1 JY |
1986 | If an error is returned, then the Destination is unmodified.\r |
| 1987 | \r | |
| c058d59f JY |
1988 | @param Destination A pointer to a Null-terminated Ascii string.\r |
| 1989 | @param DestMax The maximum number of Destination Ascii\r | |
| 1990 | char, including terminating null char.\r | |
| 1991 | @param Source A pointer to a Null-terminated Ascii string.\r | |
| 1992 | @param Length The maximum number of Ascii characters to copy.\r | |
| 1993 | \r | |
| 1994 | @retval RETURN_SUCCESS String is appended.\r | |
| 1995 | @retval RETURN_BAD_BUFFER_SIZE If DestMax is NOT greater than\r | |
| 1996 | StrLen(Destination).\r | |
| 1997 | @retval RETURN_BUFFER_TOO_SMALL If (DestMax - StrLen(Destination)) is NOT\r | |
| 1998 | greater than MIN(StrLen(Source), Length).\r | |
| 1999 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 2000 | If Source is NULL.\r | |
| 2001 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 973f8862 | 2002 | and DestMax is greater than\r |
| c058d59f JY |
2003 | PcdMaximumAsciiStringLength.\r |
| 2004 | If DestMax is 0.\r | |
| 2005 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 2006 | **/\r | |
| 2007 | RETURN_STATUS\r | |
| 2008 | EFIAPI\r | |
| 2009 | AsciiStrnCatS (\r | |
| 2010 | IN OUT CHAR8 *Destination,\r | |
| 2011 | IN UINTN DestMax,\r | |
| 2012 | IN CONST CHAR8 *Source,\r | |
| 2013 | IN UINTN Length\r | |
| 2014 | )\r | |
| 2015 | {\r | |
| 2016 | UINTN DestLen;\r | |
| 2017 | UINTN CopyLen;\r | |
| 2018 | UINTN SourceLen;\r | |
| 973f8862 | 2019 | \r |
| c058d59f JY |
2020 | //\r |
| 2021 | // Let CopyLen denote the value DestMax - AsciiStrnLenS(Destination, DestMax) upon entry to AsciiStrnCatS.\r | |
| 2022 | //\r | |
| 2023 | DestLen = AsciiStrnLenS (Destination, DestMax);\r | |
| 2024 | CopyLen = DestMax - DestLen;\r | |
| 2025 | \r | |
| 2026 | //\r | |
| 2027 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 2028 | //\r | |
| 2029 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2030 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2031 | \r | |
| 2032 | //\r | |
| 2033 | // 2. Neither DestMax nor Length shall be greater than ASCII_RSIZE_MAX.\r | |
| 2034 | //\r | |
| 2035 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2036 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2037 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2038 | }\r | |
| 2039 | \r | |
| 2040 | //\r | |
| 2041 | // 3. DestMax shall not equal zero.\r | |
| 2042 | //\r | |
| 2043 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 2044 | \r | |
| 2045 | //\r | |
| 2046 | // 4. CopyLen shall not equal zero.\r | |
| 2047 | //\r | |
| 2048 | SAFE_STRING_CONSTRAINT_CHECK ((CopyLen != 0), RETURN_BAD_BUFFER_SIZE);\r | |
| 2049 | \r | |
| 2050 | //\r | |
| 2051 | // 5. If Length is not less than CopyLen, then CopyLen shall be greater than AsciiStrnLenS(Source, CopyLen).\r | |
| 2052 | //\r | |
| 56658c22 | 2053 | SourceLen = AsciiStrnLenS (Source, MIN (CopyLen, Length));\r |
| c058d59f JY |
2054 | if (Length >= CopyLen) {\r |
| 2055 | SAFE_STRING_CONSTRAINT_CHECK ((CopyLen > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 2056 | }\r | |
| 2057 | \r | |
| 2058 | //\r | |
| 2059 | // 6. Copying shall not take place between objects that overlap.\r | |
| 2060 | //\r | |
| 2061 | if (SourceLen > Length) {\r | |
| 2062 | SourceLen = Length;\r | |
| 2063 | }\r | |
| 2064 | SAFE_STRING_CONSTRAINT_CHECK (InternalSafeStringNoAsciiStrOverlap (Destination, DestMax, (CHAR8 *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 2065 | \r | |
| 2066 | //\r | |
| 2067 | // The AsciiStrnCatS function appends not more than Length successive characters (characters\r | |
| 2068 | // that follow a null character are not copied) from the array pointed to by Source to the end of\r | |
| 2069 | // the string pointed to by Destination. The initial character from Source overwrites the null character at\r | |
| 2070 | // the end of Destination. If no null character was copied from Source, then Destination[DestMax-CopyLen+Length] is set to\r | |
| 2071 | // a null character.\r | |
| 2072 | //\r | |
| 2073 | Destination = Destination + DestLen;\r | |
| 56658c22 | 2074 | while ((SourceLen > 0) && (*Source != 0)) {\r |
| c058d59f JY |
2075 | *(Destination++) = *(Source++);\r |
| 2076 | SourceLen--;\r | |
| 2077 | }\r | |
| 2078 | *Destination = 0;\r | |
| 2079 | \r | |
| d8af3301 HW |
2080 | return RETURN_SUCCESS;\r |
| 2081 | }\r | |
| 2082 | \r | |
| 2083 | /**\r | |
| 2084 | Convert a Null-terminated Ascii decimal string to a value of type UINTN.\r | |
| 2085 | \r | |
| 2086 | This function outputs a value of type UINTN by interpreting the contents of\r | |
| 2087 | the Ascii string specified by String as a decimal number. The format of the\r | |
| 2088 | input Ascii string String is:\r | |
| 2089 | \r | |
| 2090 | [spaces] [decimal digits].\r | |
| 2091 | \r | |
| 2092 | The valid decimal digit character is in the range [0-9]. The function will\r | |
| 2093 | ignore the pad space, which includes spaces or tab characters, before\r | |
| 2094 | [decimal digits]. The running zero in the beginning of [decimal digits] will\r | |
| 2095 | be ignored. Then, the function stops at the first character that is a not a\r | |
| 2096 | valid decimal character or a Null-terminator, whichever one comes first.\r | |
| 2097 | \r | |
| d8af3301 HW |
2098 | If String has no valid decimal digits in the above format, then 0 is stored\r |
| 2099 | at the location pointed to by Data.\r | |
| 2100 | If the number represented by String exceeds the range defined by UINTN, then\r | |
| 2101 | MAX_UINTN is stored at the location pointed to by Data.\r | |
| 2102 | \r | |
| 2103 | If EndPointer is not NULL, a pointer to the character that stopped the scan\r | |
| 2104 | is stored at the location pointed to by EndPointer. If String has no valid\r | |
| 2105 | decimal digits right after the optional pad spaces, the value of String is\r | |
| 2106 | stored at the location pointed to by EndPointer.\r | |
| 2107 | \r | |
| 2108 | @param String Pointer to a Null-terminated Ascii string.\r | |
| 2109 | @param EndPointer Pointer to character that stops scan.\r | |
| 2110 | @param Data Pointer to the converted value.\r | |
| 2111 | \r | |
| 2112 | @retval RETURN_SUCCESS Value is translated from String.\r | |
| 2113 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 2114 | If Data is NULL.\r | |
| 2115 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 2116 | and String contains more than\r | |
| 2117 | PcdMaximumAsciiStringLength Ascii\r | |
| 2118 | characters, not including the\r | |
| 2119 | Null-terminator.\r | |
| 2120 | @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r | |
| 2121 | the range defined by UINTN.\r | |
| 2122 | \r | |
| 2123 | **/\r | |
| 2124 | RETURN_STATUS\r | |
| 2125 | EFIAPI\r | |
| 2126 | AsciiStrDecimalToUintnS (\r | |
| 2127 | IN CONST CHAR8 *String,\r | |
| 2128 | OUT CHAR8 **EndPointer, OPTIONAL\r | |
| 2129 | OUT UINTN *Data\r | |
| 2130 | )\r | |
| 2131 | {\r | |
| 2132 | //\r | |
| 2133 | // 1. Neither String nor Data shall be a null pointer.\r | |
| 2134 | //\r | |
| 2135 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2136 | SAFE_STRING_CONSTRAINT_CHECK ((Data != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2137 | \r | |
| 2138 | //\r | |
| 2139 | // 2. The length of String shall not be greater than ASCII_RSIZE_MAX.\r | |
| 2140 | //\r | |
| 2141 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2142 | SAFE_STRING_CONSTRAINT_CHECK ((AsciiStrnLenS (String, ASCII_RSIZE_MAX + 1) <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2143 | }\r | |
| 2144 | \r | |
| 2145 | if (EndPointer != NULL) {\r | |
| 2146 | *EndPointer = (CHAR8 *) String;\r | |
| 2147 | }\r | |
| 2148 | \r | |
| 2149 | //\r | |
| 2150 | // Ignore the pad spaces (space or tab)\r | |
| 2151 | //\r | |
| 2152 | while ((*String == ' ') || (*String == '\t')) {\r | |
| 2153 | String++;\r | |
| 2154 | }\r | |
| 2155 | \r | |
| 2156 | //\r | |
| 2157 | // Ignore leading Zeros after the spaces\r | |
| 2158 | //\r | |
| 2159 | while (*String == '0') {\r | |
| 2160 | String++;\r | |
| 2161 | }\r | |
| 2162 | \r | |
| 2163 | *Data = 0;\r | |
| 2164 | \r | |
| 2165 | while (InternalAsciiIsDecimalDigitCharacter (*String)) {\r | |
| 2166 | //\r | |
| 2167 | // If the number represented by String overflows according to the range\r | |
| 2168 | // defined by UINTN, then MAX_UINTN is stored in *Data and\r | |
| 2169 | // RETURN_UNSUPPORTED is returned.\r | |
| 2170 | //\r | |
| 2171 | if (*Data > ((MAX_UINTN - (*String - '0')) / 10)) {\r | |
| 2172 | *Data = MAX_UINTN;\r | |
| 2173 | if (EndPointer != NULL) {\r | |
| 2174 | *EndPointer = (CHAR8 *) String;\r | |
| 2175 | }\r | |
| 2176 | return RETURN_UNSUPPORTED;\r | |
| 2177 | }\r | |
| 2178 | \r | |
| 2179 | *Data = *Data * 10 + (*String - '0');\r | |
| 2180 | String++;\r | |
| 2181 | }\r | |
| 2182 | \r | |
| 2183 | if (EndPointer != NULL) {\r | |
| 2184 | *EndPointer = (CHAR8 *) String;\r | |
| 2185 | }\r | |
| 2186 | return RETURN_SUCCESS;\r | |
| 2187 | }\r | |
| 2188 | \r | |
| 2189 | /**\r | |
| 2190 | Convert a Null-terminated Ascii decimal string to a value of type UINT64.\r | |
| 2191 | \r | |
| 2192 | This function outputs a value of type UINT64 by interpreting the contents of\r | |
| 2193 | the Ascii string specified by String as a decimal number. The format of the\r | |
| 2194 | input Ascii string String is:\r | |
| 2195 | \r | |
| 2196 | [spaces] [decimal digits].\r | |
| 2197 | \r | |
| 2198 | The valid decimal digit character is in the range [0-9]. The function will\r | |
| 2199 | ignore the pad space, which includes spaces or tab characters, before\r | |
| 2200 | [decimal digits]. The running zero in the beginning of [decimal digits] will\r | |
| 2201 | be ignored. Then, the function stops at the first character that is a not a\r | |
| 2202 | valid decimal character or a Null-terminator, whichever one comes first.\r | |
| 2203 | \r | |
| d8af3301 HW |
2204 | If String has no valid decimal digits in the above format, then 0 is stored\r |
| 2205 | at the location pointed to by Data.\r | |
| 2206 | If the number represented by String exceeds the range defined by UINT64, then\r | |
| 2207 | MAX_UINT64 is stored at the location pointed to by Data.\r | |
| 2208 | \r | |
| 2209 | If EndPointer is not NULL, a pointer to the character that stopped the scan\r | |
| 2210 | is stored at the location pointed to by EndPointer. If String has no valid\r | |
| 2211 | decimal digits right after the optional pad spaces, the value of String is\r | |
| 2212 | stored at the location pointed to by EndPointer.\r | |
| 2213 | \r | |
| 2214 | @param String Pointer to a Null-terminated Ascii string.\r | |
| 2215 | @param EndPointer Pointer to character that stops scan.\r | |
| 2216 | @param Data Pointer to the converted value.\r | |
| 2217 | \r | |
| 2218 | @retval RETURN_SUCCESS Value is translated from String.\r | |
| 2219 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 2220 | If Data is NULL.\r | |
| 2221 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 2222 | and String contains more than\r | |
| 2223 | PcdMaximumAsciiStringLength Ascii\r | |
| 2224 | characters, not including the\r | |
| 2225 | Null-terminator.\r | |
| 2226 | @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r | |
| 2227 | the range defined by UINT64.\r | |
| 2228 | \r | |
| 2229 | **/\r | |
| 2230 | RETURN_STATUS\r | |
| 2231 | EFIAPI\r | |
| 2232 | AsciiStrDecimalToUint64S (\r | |
| 2233 | IN CONST CHAR8 *String,\r | |
| 2234 | OUT CHAR8 **EndPointer, OPTIONAL\r | |
| 2235 | OUT UINT64 *Data\r | |
| 2236 | )\r | |
| 2237 | {\r | |
| 2238 | //\r | |
| 2239 | // 1. Neither String nor Data shall be a null pointer.\r | |
| 2240 | //\r | |
| 2241 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2242 | SAFE_STRING_CONSTRAINT_CHECK ((Data != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2243 | \r | |
| 2244 | //\r | |
| 2245 | // 2. The length of String shall not be greater than ASCII_RSIZE_MAX.\r | |
| 2246 | //\r | |
| 2247 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2248 | SAFE_STRING_CONSTRAINT_CHECK ((AsciiStrnLenS (String, ASCII_RSIZE_MAX + 1) <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2249 | }\r | |
| 2250 | \r | |
| 2251 | if (EndPointer != NULL) {\r | |
| 2252 | *EndPointer = (CHAR8 *) String;\r | |
| 2253 | }\r | |
| 2254 | \r | |
| 2255 | //\r | |
| 2256 | // Ignore the pad spaces (space or tab)\r | |
| 2257 | //\r | |
| 2258 | while ((*String == ' ') || (*String == '\t')) {\r | |
| 2259 | String++;\r | |
| 2260 | }\r | |
| 2261 | \r | |
| 2262 | //\r | |
| 2263 | // Ignore leading Zeros after the spaces\r | |
| 2264 | //\r | |
| 2265 | while (*String == '0') {\r | |
| 2266 | String++;\r | |
| 2267 | }\r | |
| 2268 | \r | |
| 2269 | *Data = 0;\r | |
| 2270 | \r | |
| 2271 | while (InternalAsciiIsDecimalDigitCharacter (*String)) {\r | |
| 2272 | //\r | |
| 2273 | // If the number represented by String overflows according to the range\r | |
| 2274 | // defined by UINT64, then MAX_UINT64 is stored in *Data and\r | |
| 2275 | // RETURN_UNSUPPORTED is returned.\r | |
| 2276 | //\r | |
| 2277 | if (*Data > DivU64x32 (MAX_UINT64 - (*String - '0'), 10)) {\r | |
| 2278 | *Data = MAX_UINT64;\r | |
| 2279 | if (EndPointer != NULL) {\r | |
| 2280 | *EndPointer = (CHAR8 *) String;\r | |
| 2281 | }\r | |
| 2282 | return RETURN_UNSUPPORTED;\r | |
| 2283 | }\r | |
| 2284 | \r | |
| 2285 | *Data = MultU64x32 (*Data, 10) + (*String - '0');\r | |
| 2286 | String++;\r | |
| 2287 | }\r | |
| 2288 | \r | |
| 2289 | if (EndPointer != NULL) {\r | |
| 2290 | *EndPointer = (CHAR8 *) String;\r | |
| 2291 | }\r | |
| 2292 | return RETURN_SUCCESS;\r | |
| 2293 | }\r | |
| 2294 | \r | |
| 2295 | /**\r | |
| 2296 | Convert a Null-terminated Ascii hexadecimal string to a value of type UINTN.\r | |
| 2297 | \r | |
| 2298 | This function outputs a value of type UINTN by interpreting the contents of\r | |
| 2299 | the Ascii string specified by String as a hexadecimal number. The format of\r | |
| 2300 | the input Ascii string String is:\r | |
| 2301 | \r | |
| 2302 | [spaces][zeros][x][hexadecimal digits].\r | |
| 2303 | \r | |
| 2304 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r | |
| 2305 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If\r | |
| 2306 | "x" appears in the input string, it must be prefixed with at least one 0. The\r | |
| 2307 | function will ignore the pad space, which includes spaces or tab characters,\r | |
| 2308 | before [zeros], [x] or [hexadecimal digits]. The running zero before [x] or\r | |
| 2309 | [hexadecimal digits] will be ignored. Then, the decoding starts after [x] or\r | |
| 2310 | the first valid hexadecimal digit. Then, the function stops at the first\r | |
| 2311 | character that is a not a valid hexadecimal character or Null-terminator,\r | |
| 2312 | whichever on comes first.\r | |
| 2313 | \r | |
| d8af3301 HW |
2314 | If String has no valid hexadecimal digits in the above format, then 0 is\r |
| 2315 | stored at the location pointed to by Data.\r | |
| 2316 | If the number represented by String exceeds the range defined by UINTN, then\r | |
| 2317 | MAX_UINTN is stored at the location pointed to by Data.\r | |
| 2318 | \r | |
| 2319 | If EndPointer is not NULL, a pointer to the character that stopped the scan\r | |
| 2320 | is stored at the location pointed to by EndPointer. If String has no valid\r | |
| 2321 | hexadecimal digits right after the optional pad spaces, the value of String\r | |
| 2322 | is stored at the location pointed to by EndPointer.\r | |
| 2323 | \r | |
| 2324 | @param String Pointer to a Null-terminated Ascii string.\r | |
| 2325 | @param EndPointer Pointer to character that stops scan.\r | |
| 2326 | @param Data Pointer to the converted value.\r | |
| 2327 | \r | |
| 2328 | @retval RETURN_SUCCESS Value is translated from String.\r | |
| 2329 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 2330 | If Data is NULL.\r | |
| 2331 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 2332 | and String contains more than\r | |
| 2333 | PcdMaximumAsciiStringLength Ascii\r | |
| 2334 | characters, not including the\r | |
| 2335 | Null-terminator.\r | |
| 2336 | @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r | |
| 2337 | the range defined by UINTN.\r | |
| 2338 | \r | |
| 2339 | **/\r | |
| 2340 | RETURN_STATUS\r | |
| 2341 | EFIAPI\r | |
| 2342 | AsciiStrHexToUintnS (\r | |
| 2343 | IN CONST CHAR8 *String,\r | |
| 2344 | OUT CHAR8 **EndPointer, OPTIONAL\r | |
| 2345 | OUT UINTN *Data\r | |
| 2346 | )\r | |
| 2347 | {\r | |
| 2348 | //\r | |
| 2349 | // 1. Neither String nor Data shall be a null pointer.\r | |
| 2350 | //\r | |
| 2351 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2352 | SAFE_STRING_CONSTRAINT_CHECK ((Data != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2353 | \r | |
| 2354 | //\r | |
| 2355 | // 2. The length of String shall not be greater than ASCII_RSIZE_MAX.\r | |
| 2356 | //\r | |
| 2357 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2358 | SAFE_STRING_CONSTRAINT_CHECK ((AsciiStrnLenS (String, ASCII_RSIZE_MAX + 1) <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2359 | }\r | |
| 2360 | \r | |
| 2361 | if (EndPointer != NULL) {\r | |
| 2362 | *EndPointer = (CHAR8 *) String;\r | |
| 2363 | }\r | |
| 2364 | \r | |
| 2365 | //\r | |
| 2366 | // Ignore the pad spaces (space or tab)\r | |
| 2367 | //\r | |
| 2368 | while ((*String == ' ') || (*String == '\t')) {\r | |
| 2369 | String++;\r | |
| 2370 | }\r | |
| 2371 | \r | |
| 2372 | //\r | |
| 2373 | // Ignore leading Zeros after the spaces\r | |
| 2374 | //\r | |
| 2375 | while (*String == '0') {\r | |
| 2376 | String++;\r | |
| 2377 | }\r | |
| 2378 | \r | |
| 5dbfa01e | 2379 | if (AsciiCharToUpper (*String) == 'X') {\r |
| d8af3301 HW |
2380 | if (*(String - 1) != '0') {\r |
| 2381 | *Data = 0;\r | |
| 2382 | return RETURN_SUCCESS;\r | |
| 2383 | }\r | |
| 2384 | //\r | |
| 2385 | // Skip the 'X'\r | |
| 2386 | //\r | |
| 2387 | String++;\r | |
| 2388 | }\r | |
| 2389 | \r | |
| 2390 | *Data = 0;\r | |
| 2391 | \r | |
| 2392 | while (InternalAsciiIsHexaDecimalDigitCharacter (*String)) {\r | |
| 2393 | //\r | |
| 2394 | // If the number represented by String overflows according to the range\r | |
| 2395 | // defined by UINTN, then MAX_UINTN is stored in *Data and\r | |
| 2396 | // RETURN_UNSUPPORTED is returned.\r | |
| 2397 | //\r | |
| 2398 | if (*Data > ((MAX_UINTN - InternalAsciiHexCharToUintn (*String)) >> 4)) {\r | |
| 2399 | *Data = MAX_UINTN;\r | |
| 2400 | if (EndPointer != NULL) {\r | |
| 2401 | *EndPointer = (CHAR8 *) String;\r | |
| 2402 | }\r | |
| 2403 | return RETURN_UNSUPPORTED;\r | |
| 2404 | }\r | |
| 2405 | \r | |
| 2406 | *Data = (*Data << 4) + InternalAsciiHexCharToUintn (*String);\r | |
| 2407 | String++;\r | |
| 2408 | }\r | |
| 2409 | \r | |
| 2410 | if (EndPointer != NULL) {\r | |
| 2411 | *EndPointer = (CHAR8 *) String;\r | |
| 2412 | }\r | |
| 2413 | return RETURN_SUCCESS;\r | |
| 2414 | }\r | |
| 2415 | \r | |
| 2416 | /**\r | |
| 2417 | Convert a Null-terminated Ascii hexadecimal string to a value of type UINT64.\r | |
| 2418 | \r | |
| 2419 | This function outputs a value of type UINT64 by interpreting the contents of\r | |
| 2420 | the Ascii string specified by String as a hexadecimal number. The format of\r | |
| 2421 | the input Ascii string String is:\r | |
| 2422 | \r | |
| 2423 | [spaces][zeros][x][hexadecimal digits].\r | |
| 2424 | \r | |
| 2425 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r | |
| 2426 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If\r | |
| 2427 | "x" appears in the input string, it must be prefixed with at least one 0. The\r | |
| 2428 | function will ignore the pad space, which includes spaces or tab characters,\r | |
| 2429 | before [zeros], [x] or [hexadecimal digits]. The running zero before [x] or\r | |
| 2430 | [hexadecimal digits] will be ignored. Then, the decoding starts after [x] or\r | |
| 2431 | the first valid hexadecimal digit. Then, the function stops at the first\r | |
| 2432 | character that is a not a valid hexadecimal character or Null-terminator,\r | |
| 2433 | whichever on comes first.\r | |
| 2434 | \r | |
| d8af3301 HW |
2435 | If String has no valid hexadecimal digits in the above format, then 0 is\r |
| 2436 | stored at the location pointed to by Data.\r | |
| 2437 | If the number represented by String exceeds the range defined by UINT64, then\r | |
| 2438 | MAX_UINT64 is stored at the location pointed to by Data.\r | |
| 2439 | \r | |
| 2440 | If EndPointer is not NULL, a pointer to the character that stopped the scan\r | |
| 2441 | is stored at the location pointed to by EndPointer. If String has no valid\r | |
| 2442 | hexadecimal digits right after the optional pad spaces, the value of String\r | |
| 2443 | is stored at the location pointed to by EndPointer.\r | |
| 2444 | \r | |
| 2445 | @param String Pointer to a Null-terminated Ascii string.\r | |
| 2446 | @param EndPointer Pointer to character that stops scan.\r | |
| 2447 | @param Data Pointer to the converted value.\r | |
| 2448 | \r | |
| 2449 | @retval RETURN_SUCCESS Value is translated from String.\r | |
| 2450 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 2451 | If Data is NULL.\r | |
| 2452 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 2453 | and String contains more than\r | |
| 2454 | PcdMaximumAsciiStringLength Ascii\r | |
| 2455 | characters, not including the\r | |
| 2456 | Null-terminator.\r | |
| 2457 | @retval RETURN_UNSUPPORTED If the number represented by String exceeds\r | |
| 2458 | the range defined by UINT64.\r | |
| 2459 | \r | |
| 2460 | **/\r | |
| 2461 | RETURN_STATUS\r | |
| 2462 | EFIAPI\r | |
| 2463 | AsciiStrHexToUint64S (\r | |
| 2464 | IN CONST CHAR8 *String,\r | |
| 2465 | OUT CHAR8 **EndPointer, OPTIONAL\r | |
| 2466 | OUT UINT64 *Data\r | |
| 2467 | )\r | |
| 2468 | {\r | |
| 2469 | //\r | |
| 2470 | // 1. Neither String nor Data shall be a null pointer.\r | |
| 2471 | //\r | |
| 2472 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2473 | SAFE_STRING_CONSTRAINT_CHECK ((Data != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2474 | \r | |
| 2475 | //\r | |
| 2476 | // 2. The length of String shall not be greater than ASCII_RSIZE_MAX.\r | |
| 2477 | //\r | |
| 2478 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2479 | SAFE_STRING_CONSTRAINT_CHECK ((AsciiStrnLenS (String, ASCII_RSIZE_MAX + 1) <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2480 | }\r | |
| 2481 | \r | |
| 2482 | if (EndPointer != NULL) {\r | |
| 2483 | *EndPointer = (CHAR8 *) String;\r | |
| 2484 | }\r | |
| 2485 | \r | |
| 2486 | //\r | |
| 2487 | // Ignore the pad spaces (space or tab)\r | |
| 2488 | //\r | |
| 2489 | while ((*String == ' ') || (*String == '\t')) {\r | |
| 2490 | String++;\r | |
| 2491 | }\r | |
| 2492 | \r | |
| 2493 | //\r | |
| 2494 | // Ignore leading Zeros after the spaces\r | |
| 2495 | //\r | |
| 2496 | while (*String == '0') {\r | |
| 2497 | String++;\r | |
| 2498 | }\r | |
| 2499 | \r | |
| 5dbfa01e | 2500 | if (AsciiCharToUpper (*String) == 'X') {\r |
| d8af3301 HW |
2501 | if (*(String - 1) != '0') {\r |
| 2502 | *Data = 0;\r | |
| 2503 | return RETURN_SUCCESS;\r | |
| 2504 | }\r | |
| 2505 | //\r | |
| 2506 | // Skip the 'X'\r | |
| 2507 | //\r | |
| 2508 | String++;\r | |
| 2509 | }\r | |
| 2510 | \r | |
| 2511 | *Data = 0;\r | |
| 2512 | \r | |
| 2513 | while (InternalAsciiIsHexaDecimalDigitCharacter (*String)) {\r | |
| 2514 | //\r | |
| 2515 | // If the number represented by String overflows according to the range\r | |
| 2516 | // defined by UINT64, then MAX_UINT64 is stored in *Data and\r | |
| 2517 | // RETURN_UNSUPPORTED is returned.\r | |
| 2518 | //\r | |
| 2519 | if (*Data > RShiftU64 (MAX_UINT64 - InternalAsciiHexCharToUintn (*String), 4)) {\r | |
| 2520 | *Data = MAX_UINT64;\r | |
| 2521 | if (EndPointer != NULL) {\r | |
| 2522 | *EndPointer = (CHAR8 *) String;\r | |
| 2523 | }\r | |
| 2524 | return RETURN_UNSUPPORTED;\r | |
| 2525 | }\r | |
| 2526 | \r | |
| 2527 | *Data = LShiftU64 (*Data, 4) + InternalAsciiHexCharToUintn (*String);\r | |
| 2528 | String++;\r | |
| 2529 | }\r | |
| 2530 | \r | |
| 2531 | if (EndPointer != NULL) {\r | |
| 2532 | *EndPointer = (CHAR8 *) String;\r | |
| 2533 | }\r | |
| c058d59f JY |
2534 | return RETURN_SUCCESS;\r |
| 2535 | }\r | |
| 3ab41b7a JY |
2536 | \r |
| 2537 | /**\r | |
| 2538 | Convert a Null-terminated Unicode string to a Null-terminated\r | |
| 2539 | ASCII string.\r | |
| 2540 | \r | |
| 2541 | This function is similar to AsciiStrCpyS.\r | |
| 2542 | \r | |
| 2543 | This function converts the content of the Unicode string Source\r | |
| 2544 | to the ASCII string Destination by copying the lower 8 bits of\r | |
| 2545 | each Unicode character. The function terminates the ASCII string\r | |
| 2546 | Destination by appending a Null-terminator character at the end.\r | |
| 2547 | \r | |
| 2548 | The caller is responsible to make sure Destination points to a buffer with size\r | |
| 2549 | equal or greater than ((StrLen (Source) + 1) * sizeof (CHAR8)) in bytes.\r | |
| 2550 | \r | |
| 2551 | If any Unicode characters in Source contain non-zero value in\r | |
| 2552 | the upper 8 bits, then ASSERT().\r | |
| 2553 | \r | |
| 2554 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 3ab41b7a JY |
2555 | \r |
| 2556 | If an error is returned, then the Destination is unmodified.\r | |
| 2557 | \r | |
| 2558 | @param Source The pointer to a Null-terminated Unicode string.\r | |
| 2559 | @param Destination The pointer to a Null-terminated ASCII string.\r | |
| 2560 | @param DestMax The maximum number of Destination Ascii\r | |
| 2561 | char, including terminating null char.\r | |
| 2562 | \r | |
| 2563 | @retval RETURN_SUCCESS String is converted.\r | |
| 2564 | @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r | |
| 2565 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 2566 | If Source is NULL.\r | |
| 2567 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 2568 | and DestMax is greater than\r | |
| 2569 | PcdMaximumAsciiStringLength.\r | |
| 2570 | If PcdMaximumUnicodeStringLength is not zero,\r | |
| 2571 | and DestMax is greater than\r | |
| 2572 | PcdMaximumUnicodeStringLength.\r | |
| 2573 | If DestMax is 0.\r | |
| 2574 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 2575 | \r | |
| 2576 | **/\r | |
| 2577 | RETURN_STATUS\r | |
| 2578 | EFIAPI\r | |
| 2579 | UnicodeStrToAsciiStrS (\r | |
| 2580 | IN CONST CHAR16 *Source,\r | |
| 2581 | OUT CHAR8 *Destination,\r | |
| 2582 | IN UINTN DestMax\r | |
| 2583 | )\r | |
| 2584 | {\r | |
| 2585 | UINTN SourceLen;\r | |
| 2586 | \r | |
| 2587 | ASSERT (((UINTN) Source & BIT0) == 0);\r | |
| 2588 | \r | |
| 2589 | //\r | |
| 2590 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 2591 | //\r | |
| 2592 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2593 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2594 | \r | |
| 2595 | //\r | |
| 2596 | // 2. DestMax shall not be greater than ASCII_RSIZE_MAX or RSIZE_MAX.\r | |
| 2597 | //\r | |
| 2598 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2599 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2600 | }\r | |
| 2601 | if (RSIZE_MAX != 0) {\r | |
| 2602 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2603 | }\r | |
| 2604 | \r | |
| 2605 | //\r | |
| 2606 | // 3. DestMax shall not equal zero.\r | |
| 2607 | //\r | |
| 2608 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 2609 | \r | |
| 2610 | //\r | |
| 2611 | // 4. DestMax shall be greater than StrnLenS (Source, DestMax).\r | |
| 2612 | //\r | |
| 2613 | SourceLen = StrnLenS (Source, DestMax);\r | |
| 2614 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 2615 | \r | |
| 2616 | //\r | |
| 2617 | // 5. Copying shall not take place between objects that overlap.\r | |
| 2618 | //\r | |
| 2619 | SAFE_STRING_CONSTRAINT_CHECK (!InternalSafeStringIsOverlap (Destination, DestMax, (VOID *)Source, (SourceLen + 1) * sizeof(CHAR16)), RETURN_ACCESS_DENIED);\r | |
| 2620 | \r | |
| 2621 | //\r | |
| 2622 | // convert string\r | |
| 2623 | //\r | |
| 2624 | while (*Source != '\0') {\r | |
| 2625 | //\r | |
| 2626 | // If any Unicode characters in Source contain\r | |
| 2627 | // non-zero value in the upper 8 bits, then ASSERT().\r | |
| 2628 | //\r | |
| 2629 | ASSERT (*Source < 0x100);\r | |
| 2630 | *(Destination++) = (CHAR8) *(Source++);\r | |
| 2631 | }\r | |
| 2632 | *Destination = '\0';\r | |
| 2633 | \r | |
| 2634 | return RETURN_SUCCESS;\r | |
| 2635 | }\r | |
| 2636 | \r | |
| 02263214 HW |
2637 | /**\r |
| 2638 | Convert not more than Length successive characters from a Null-terminated\r | |
| 2639 | Unicode string to a Null-terminated Ascii string. If no null char is copied\r | |
| 2640 | from Source, then Destination[Length] is always set to null.\r | |
| 2641 | \r | |
| 2642 | This function converts not more than Length successive characters from the\r | |
| 2643 | Unicode string Source to the Ascii string Destination by copying the lower 8\r | |
| 2644 | bits of each Unicode character. The function terminates the Ascii string\r | |
| 2645 | Destination by appending a Null-terminator character at the end.\r | |
| 2646 | \r | |
| 2647 | The caller is responsible to make sure Destination points to a buffer with\r | |
| 2648 | size not smaller than ((MIN(StrLen(Source), Length) + 1) * sizeof (CHAR8))\r | |
| 2649 | in bytes.\r | |
| 2650 | \r | |
| 2651 | If any Unicode characters in Source contain non-zero value in the upper 8\r | |
| 2652 | bits, then ASSERT().\r | |
| 2653 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 02263214 HW |
2654 | \r |
| 2655 | If an error is returned, then Destination and DestinationLength are\r | |
| 2656 | unmodified.\r | |
| 2657 | \r | |
| 2658 | @param Source The pointer to a Null-terminated Unicode string.\r | |
| 2659 | @param Length The maximum number of Unicode characters to\r | |
| 2660 | convert.\r | |
| 2661 | @param Destination The pointer to a Null-terminated Ascii string.\r | |
| 2662 | @param DestMax The maximum number of Destination Ascii char,\r | |
| 2663 | including terminating null char.\r | |
| 2664 | @param DestinationLength The number of Unicode characters converted.\r | |
| 2665 | \r | |
| 2666 | @retval RETURN_SUCCESS String is converted.\r | |
| 2667 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 2668 | If Source is NULL.\r | |
| 2669 | If DestinationLength is NULL.\r | |
| 2670 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 2671 | and Length or DestMax is greater than\r | |
| 2672 | PcdMaximumAsciiStringLength.\r | |
| 2673 | If PcdMaximumUnicodeStringLength is not\r | |
| 2674 | zero, and Length or DestMax is greater than\r | |
| 2675 | PcdMaximumUnicodeStringLength.\r | |
| 2676 | If DestMax is 0.\r | |
| 2677 | @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than\r | |
| 2678 | MIN(StrLen(Source), Length).\r | |
| 2679 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 2680 | \r | |
| 2681 | **/\r | |
| 2682 | RETURN_STATUS\r | |
| 2683 | EFIAPI\r | |
| 2684 | UnicodeStrnToAsciiStrS (\r | |
| 2685 | IN CONST CHAR16 *Source,\r | |
| 2686 | IN UINTN Length,\r | |
| 2687 | OUT CHAR8 *Destination,\r | |
| 2688 | IN UINTN DestMax,\r | |
| 2689 | OUT UINTN *DestinationLength\r | |
| 2690 | )\r | |
| 2691 | {\r | |
| 2692 | UINTN SourceLen;\r | |
| 2693 | \r | |
| 2694 | ASSERT (((UINTN) Source & BIT0) == 0);\r | |
| 2695 | \r | |
| 2696 | //\r | |
| 2697 | // 1. None of Destination, Source or DestinationLength shall be a null\r | |
| 2698 | // pointer.\r | |
| 2699 | //\r | |
| 2700 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2701 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2702 | SAFE_STRING_CONSTRAINT_CHECK ((DestinationLength != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2703 | \r | |
| 2704 | //\r | |
| 2705 | // 2. Neither Length nor DestMax shall be greater than ASCII_RSIZE_MAX or\r | |
| 2706 | // RSIZE_MAX.\r | |
| 2707 | //\r | |
| 2708 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2709 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2710 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2711 | }\r | |
| 2712 | if (RSIZE_MAX != 0) {\r | |
| 2713 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2714 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2715 | }\r | |
| 2716 | \r | |
| 2717 | //\r | |
| 2718 | // 3. DestMax shall not equal zero.\r | |
| 2719 | //\r | |
| 2720 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 2721 | \r | |
| 2722 | //\r | |
| 2723 | // 4. If Length is not less than DestMax, then DestMax shall be greater than\r | |
| 2724 | // StrnLenS(Source, DestMax).\r | |
| 2725 | //\r | |
| 2726 | SourceLen = StrnLenS (Source, DestMax);\r | |
| 2727 | if (Length >= DestMax) {\r | |
| 2728 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 2729 | }\r | |
| 2730 | \r | |
| 2731 | //\r | |
| 2732 | // 5. Copying shall not take place between objects that overlap.\r | |
| 2733 | //\r | |
| 2734 | if (SourceLen > Length) {\r | |
| 2735 | SourceLen = Length;\r | |
| 2736 | }\r | |
| 2737 | SAFE_STRING_CONSTRAINT_CHECK (!InternalSafeStringIsOverlap (Destination, DestMax, (VOID *)Source, (SourceLen + 1) * sizeof(CHAR16)), RETURN_ACCESS_DENIED);\r | |
| 2738 | \r | |
| 2739 | *DestinationLength = 0;\r | |
| 2740 | \r | |
| 2741 | //\r | |
| 2742 | // Convert string\r | |
| 2743 | //\r | |
| 2744 | while ((*Source != 0) && (SourceLen > 0)) {\r | |
| 2745 | //\r | |
| 2746 | // If any Unicode characters in Source contain non-zero value in the upper\r | |
| 2747 | // 8 bits, then ASSERT().\r | |
| 2748 | //\r | |
| 2749 | ASSERT (*Source < 0x100);\r | |
| 2750 | *(Destination++) = (CHAR8) *(Source++);\r | |
| 2751 | SourceLen--;\r | |
| 2752 | (*DestinationLength)++;\r | |
| 2753 | }\r | |
| 2754 | *Destination = 0;\r | |
| 2755 | \r | |
| 2756 | return RETURN_SUCCESS;\r | |
| 2757 | }\r | |
| 3ab41b7a JY |
2758 | \r |
| 2759 | /**\r | |
| 2760 | Convert one Null-terminated ASCII string to a Null-terminated\r | |
| 2761 | Unicode string.\r | |
| 2762 | \r | |
| 2763 | This function is similar to StrCpyS.\r | |
| 2764 | \r | |
| 2765 | This function converts the contents of the ASCII string Source to the Unicode\r | |
| 2766 | string Destination. The function terminates the Unicode string Destination by\r | |
| 2767 | appending a Null-terminator character at the end.\r | |
| 2768 | \r | |
| 2769 | The caller is responsible to make sure Destination points to a buffer with size\r | |
| 2770 | equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes.\r | |
| 2771 | \r | |
| 2772 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 3ab41b7a JY |
2773 | \r |
| 2774 | If an error is returned, then the Destination is unmodified.\r | |
| 2775 | \r | |
| 2776 | @param Source The pointer to a Null-terminated ASCII string.\r | |
| 2777 | @param Destination The pointer to a Null-terminated Unicode string.\r | |
| 2778 | @param DestMax The maximum number of Destination Unicode\r | |
| 2779 | char, including terminating null char.\r | |
| 2780 | \r | |
| 2781 | @retval RETURN_SUCCESS String is converted.\r | |
| 2782 | @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than StrLen(Source).\r | |
| 2783 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 2784 | If Source is NULL.\r | |
| 2785 | If PcdMaximumUnicodeStringLength is not zero,\r | |
| 2786 | and DestMax is greater than\r | |
| 2787 | PcdMaximumUnicodeStringLength.\r | |
| 2788 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 2789 | and DestMax is greater than\r | |
| 2790 | PcdMaximumAsciiStringLength.\r | |
| 2791 | If DestMax is 0.\r | |
| 2792 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 2793 | \r | |
| 2794 | **/\r | |
| 2795 | RETURN_STATUS\r | |
| 2796 | EFIAPI\r | |
| 2797 | AsciiStrToUnicodeStrS (\r | |
| 2798 | IN CONST CHAR8 *Source,\r | |
| 2799 | OUT CHAR16 *Destination,\r | |
| 2800 | IN UINTN DestMax\r | |
| 2801 | )\r | |
| 2802 | {\r | |
| 2803 | UINTN SourceLen;\r | |
| 2804 | \r | |
| 2805 | ASSERT (((UINTN) Destination & BIT0) == 0);\r | |
| 2806 | \r | |
| 2807 | //\r | |
| 2808 | // 1. Neither Destination nor Source shall be a null pointer.\r | |
| 2809 | //\r | |
| 2810 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2811 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2812 | \r | |
| 2813 | //\r | |
| 2814 | // 2. DestMax shall not be greater than RSIZE_MAX or ASCII_RSIZE_MAX.\r | |
| 2815 | //\r | |
| 2816 | if (RSIZE_MAX != 0) {\r | |
| 2817 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2818 | }\r | |
| 2819 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2820 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2821 | }\r | |
| 2822 | \r | |
| 2823 | //\r | |
| 2824 | // 3. DestMax shall not equal zero.\r | |
| 2825 | //\r | |
| 2826 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 2827 | \r | |
| 2828 | //\r | |
| 2829 | // 4. DestMax shall be greater than AsciiStrnLenS(Source, DestMax).\r | |
| 2830 | //\r | |
| 2831 | SourceLen = AsciiStrnLenS (Source, DestMax);\r | |
| 2832 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 2833 | \r | |
| 2834 | //\r | |
| 2835 | // 5. Copying shall not take place between objects that overlap.\r | |
| 2836 | //\r | |
| 2837 | SAFE_STRING_CONSTRAINT_CHECK (!InternalSafeStringIsOverlap (Destination, DestMax * sizeof(CHAR16), (VOID *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 2838 | \r | |
| 2839 | //\r | |
| 2840 | // Convert string\r | |
| 2841 | //\r | |
| 2842 | while (*Source != '\0') {\r | |
| 0dab5770 | 2843 | *(Destination++) = (CHAR16)(UINT8)*(Source++);\r |
| 3ab41b7a JY |
2844 | }\r |
| 2845 | *Destination = '\0';\r | |
| 2846 | \r | |
| 2847 | return RETURN_SUCCESS;\r | |
| 2848 | }\r | |
| 02263214 HW |
2849 | \r |
| 2850 | /**\r | |
| 2851 | Convert not more than Length successive characters from a Null-terminated\r | |
| 2852 | Ascii string to a Null-terminated Unicode string. If no null char is copied\r | |
| 2853 | from Source, then Destination[Length] is always set to null.\r | |
| 2854 | \r | |
| 2855 | This function converts not more than Length successive characters from the\r | |
| 2856 | Ascii string Source to the Unicode string Destination. The function\r | |
| 2857 | terminates the Unicode string Destination by appending a Null-terminator\r | |
| 2858 | character at the end.\r | |
| 2859 | \r | |
| 2860 | The caller is responsible to make sure Destination points to a buffer with\r | |
| 2861 | size not smaller than\r | |
| 2862 | ((MIN(AsciiStrLen(Source), Length) + 1) * sizeof (CHAR8)) in bytes.\r | |
| 2863 | \r | |
| 2864 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
| 02263214 HW |
2865 | \r |
| 2866 | If an error is returned, then Destination and DestinationLength are\r | |
| 2867 | unmodified.\r | |
| 2868 | \r | |
| 2869 | @param Source The pointer to a Null-terminated Ascii string.\r | |
| 2870 | @param Length The maximum number of Ascii characters to convert.\r | |
| 2871 | @param Destination The pointer to a Null-terminated Unicode string.\r | |
| 2872 | @param DestMax The maximum number of Destination Unicode char,\r | |
| 2873 | including terminating null char.\r | |
| 2874 | @param DestinationLength The number of Ascii characters converted.\r | |
| 2875 | \r | |
| 2876 | @retval RETURN_SUCCESS String is converted.\r | |
| 2877 | @retval RETURN_INVALID_PARAMETER If Destination is NULL.\r | |
| 2878 | If Source is NULL.\r | |
| 2879 | If DestinationLength is NULL.\r | |
| 2880 | If PcdMaximumUnicodeStringLength is not\r | |
| 2881 | zero, and Length or DestMax is greater than\r | |
| 2882 | PcdMaximumUnicodeStringLength.\r | |
| 2883 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 2884 | and Length or DestMax is greater than\r | |
| 2885 | PcdMaximumAsciiStringLength.\r | |
| 2886 | If DestMax is 0.\r | |
| 2887 | @retval RETURN_BUFFER_TOO_SMALL If DestMax is NOT greater than\r | |
| 2888 | MIN(AsciiStrLen(Source), Length).\r | |
| 2889 | @retval RETURN_ACCESS_DENIED If Source and Destination overlap.\r | |
| 2890 | \r | |
| 2891 | **/\r | |
| 2892 | RETURN_STATUS\r | |
| 2893 | EFIAPI\r | |
| 2894 | AsciiStrnToUnicodeStrS (\r | |
| 2895 | IN CONST CHAR8 *Source,\r | |
| 2896 | IN UINTN Length,\r | |
| 2897 | OUT CHAR16 *Destination,\r | |
| 2898 | IN UINTN DestMax,\r | |
| 2899 | OUT UINTN *DestinationLength\r | |
| 2900 | )\r | |
| 2901 | {\r | |
| 2902 | UINTN SourceLen;\r | |
| 2903 | \r | |
| 2904 | ASSERT (((UINTN) Destination & BIT0) == 0);\r | |
| 2905 | \r | |
| 2906 | //\r | |
| 2907 | // 1. None of Destination, Source or DestinationLength shall be a null\r | |
| 2908 | // pointer.\r | |
| 2909 | //\r | |
| 2910 | SAFE_STRING_CONSTRAINT_CHECK ((Destination != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2911 | SAFE_STRING_CONSTRAINT_CHECK ((Source != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2912 | SAFE_STRING_CONSTRAINT_CHECK ((DestinationLength != NULL), RETURN_INVALID_PARAMETER);\r | |
| 2913 | \r | |
| 2914 | //\r | |
| 2915 | // 2. Neither Length nor DestMax shall be greater than ASCII_RSIZE_MAX or\r | |
| 2916 | // RSIZE_MAX.\r | |
| 2917 | //\r | |
| 2918 | if (RSIZE_MAX != 0) {\r | |
| 2919 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2920 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2921 | }\r | |
| 2922 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 2923 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2924 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 2925 | }\r | |
| 2926 | \r | |
| 2927 | //\r | |
| 2928 | // 3. DestMax shall not equal zero.\r | |
| 2929 | //\r | |
| 2930 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax != 0), RETURN_INVALID_PARAMETER);\r | |
| 2931 | \r | |
| 2932 | //\r | |
| 2933 | // 4. If Length is not less than DestMax, then DestMax shall be greater than\r | |
| 2934 | // AsciiStrnLenS(Source, DestMax).\r | |
| 2935 | //\r | |
| 2936 | SourceLen = AsciiStrnLenS (Source, DestMax);\r | |
| 2937 | if (Length >= DestMax) {\r | |
| 2938 | SAFE_STRING_CONSTRAINT_CHECK ((DestMax > SourceLen), RETURN_BUFFER_TOO_SMALL);\r | |
| 2939 | }\r | |
| 2940 | \r | |
| 2941 | //\r | |
| 2942 | // 5. Copying shall not take place between objects that overlap.\r | |
| 2943 | //\r | |
| 2944 | if (SourceLen > Length) {\r | |
| 2945 | SourceLen = Length;\r | |
| 2946 | }\r | |
| 2947 | SAFE_STRING_CONSTRAINT_CHECK (!InternalSafeStringIsOverlap (Destination, DestMax * sizeof(CHAR16), (VOID *)Source, SourceLen + 1), RETURN_ACCESS_DENIED);\r | |
| 2948 | \r | |
| 2949 | *DestinationLength = 0;\r | |
| 2950 | \r | |
| 2951 | //\r | |
| 2952 | // Convert string\r | |
| 2953 | //\r | |
| 2954 | while ((*Source != 0) && (SourceLen > 0)) {\r | |
| 0dab5770 | 2955 | *(Destination++) = (CHAR16)(UINT8)*(Source++);\r |
| 02263214 HW |
2956 | SourceLen--;\r |
| 2957 | (*DestinationLength)++;\r | |
| 2958 | }\r | |
| 2959 | *Destination = 0;\r | |
| 2960 | \r | |
| 2961 | return RETURN_SUCCESS;\r | |
| 2962 | }\r | |
| fb4dd857 RN |
2963 | \r |
| 2964 | /**\r | |
| 2965 | Convert a Null-terminated ASCII string to IPv6 address and prefix length.\r | |
| 2966 | \r | |
| 2967 | This function outputs a value of type IPv6_ADDRESS and may output a value\r | |
| 2968 | of type UINT8 by interpreting the contents of the ASCII string specified\r | |
| 2969 | by String. The format of the input ASCII string String is as follows:\r | |
| 2970 | \r | |
| 2971 | X:X:X:X:X:X:X:X[/P]\r | |
| 2972 | \r | |
| 2973 | X contains one to four hexadecimal digit characters in the range [0-9], [a-f] and\r | |
| 2974 | [A-F]. X is converted to a value of type UINT16, whose low byte is stored in low\r | |
| 2975 | memory address and high byte is stored in high memory address. P contains decimal\r | |
| 2976 | digit characters in the range [0-9]. The running zero in the beginning of P will\r | |
| 2977 | be ignored. /P is optional.\r | |
| 2978 | \r | |
| 2979 | When /P is not in the String, the function stops at the first character that is\r | |
| 2980 | not a valid hexadecimal digit character after eight X's are converted.\r | |
| 2981 | \r | |
| 2982 | When /P is in the String, the function stops at the first character that is not\r | |
| 2983 | a valid decimal digit character after P is converted.\r | |
| 2984 | \r | |
| 2985 | "::" can be used to compress one or more groups of X when X contains only 0.\r | |
| 2986 | The "::" can only appear once in the String.\r | |
| 2987 | \r | |
| fb4dd857 RN |
2988 | If EndPointer is not NULL and Address is translated from String, a pointer\r |
| 2989 | to the character that stopped the scan is stored at the location pointed to\r | |
| 2990 | by EndPointer.\r | |
| 2991 | \r | |
| 2992 | @param String Pointer to a Null-terminated ASCII string.\r | |
| 2993 | @param EndPointer Pointer to character that stops scan.\r | |
| 2994 | @param Address Pointer to the converted IPv6 address.\r | |
| 2995 | @param PrefixLength Pointer to the converted IPv6 address prefix\r | |
| 2996 | length. MAX_UINT8 is returned when /P is\r | |
| 2997 | not in the String.\r | |
| 2998 | \r | |
| 2999 | @retval RETURN_SUCCESS Address is translated from String.\r | |
| 3000 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 3001 | If Data is NULL.\r | |
| 3002 | @retval RETURN_UNSUPPORTED If X contains more than four hexadecimal\r | |
| 3003 | digit characters.\r | |
| 3004 | If String contains "::" and number of X\r | |
| 3005 | is not less than 8.\r | |
| 3006 | If P starts with character that is not a\r | |
| 3007 | valid decimal digit character.\r | |
| 3008 | If the decimal number converted from P\r | |
| 3009 | exceeds 128.\r | |
| 3010 | \r | |
| 3011 | **/\r | |
| 3012 | RETURN_STATUS\r | |
| 3013 | EFIAPI\r | |
| 3014 | AsciiStrToIpv6Address (\r | |
| 3015 | IN CONST CHAR8 *String,\r | |
| 3016 | OUT CHAR8 **EndPointer, OPTIONAL\r | |
| 3017 | OUT IPv6_ADDRESS *Address,\r | |
| 3018 | OUT UINT8 *PrefixLength OPTIONAL\r | |
| 3019 | )\r | |
| 3020 | {\r | |
| 3021 | RETURN_STATUS Status;\r | |
| 3022 | UINTN AddressIndex;\r | |
| 3023 | UINTN Uintn;\r | |
| 3024 | IPv6_ADDRESS LocalAddress;\r | |
| 3025 | UINT8 LocalPrefixLength;\r | |
| 3026 | CONST CHAR8 *Pointer;\r | |
| 3027 | CHAR8 *End;\r | |
| 3028 | UINTN CompressStart;\r | |
| 3029 | BOOLEAN ExpectPrefix;\r | |
| 3030 | \r | |
| 3031 | LocalPrefixLength = MAX_UINT8;\r | |
| 3032 | CompressStart = ARRAY_SIZE (Address->Addr);\r | |
| 3033 | ExpectPrefix = FALSE;\r | |
| 3034 | \r | |
| 3035 | //\r | |
| 3036 | // None of String or Address shall be a null pointer.\r | |
| 3037 | //\r | |
| 3038 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 3039 | SAFE_STRING_CONSTRAINT_CHECK ((Address != NULL), RETURN_INVALID_PARAMETER);\r | |
| 3040 | \r | |
| 3041 | for (Pointer = String, AddressIndex = 0; AddressIndex < ARRAY_SIZE (Address->Addr) + 1;) {\r | |
| 3042 | if (!InternalAsciiIsHexaDecimalDigitCharacter (*Pointer)) {\r | |
| 3043 | if (*Pointer != ':') {\r | |
| 3044 | //\r | |
| 3045 | // ":" or "/" should be followed by digit characters.\r | |
| 3046 | //\r | |
| 3047 | return RETURN_UNSUPPORTED;\r | |
| 3048 | }\r | |
| 3049 | \r | |
| 3050 | //\r | |
| 3051 | // Meet second ":" after previous ":" or "/"\r | |
| 3052 | // or meet first ":" in the beginning of String.\r | |
| 3053 | //\r | |
| 3054 | if (ExpectPrefix) {\r | |
| 3055 | //\r | |
| 3056 | // ":" shall not be after "/"\r | |
| 3057 | //\r | |
| 3058 | return RETURN_UNSUPPORTED;\r | |
| 3059 | }\r | |
| 3060 | \r | |
| 3061 | if (CompressStart != ARRAY_SIZE (Address->Addr) || AddressIndex == ARRAY_SIZE (Address->Addr)) {\r | |
| 3062 | //\r | |
| 3063 | // "::" can only appear once.\r | |
| 3064 | // "::" can only appear when address is not full length.\r | |
| 3065 | //\r | |
| 3066 | return RETURN_UNSUPPORTED;\r | |
| 3067 | } else {\r | |
| 3068 | //\r | |
| 3069 | // Remember the start of zero compressing.\r | |
| 3070 | //\r | |
| 3071 | CompressStart = AddressIndex;\r | |
| 3072 | Pointer++;\r | |
| 3073 | \r | |
| 3074 | if (CompressStart == 0) {\r | |
| 3075 | if (*Pointer != ':') {\r | |
| 3076 | //\r | |
| 3077 | // Single ":" shall not be in the beginning of String.\r | |
| 3078 | //\r | |
| 3079 | return RETURN_UNSUPPORTED;\r | |
| 3080 | }\r | |
| 3081 | Pointer++;\r | |
| 3082 | }\r | |
| 3083 | }\r | |
| 3084 | }\r | |
| 3085 | \r | |
| 3086 | if (!InternalAsciiIsHexaDecimalDigitCharacter (*Pointer)) {\r | |
| 3087 | if (*Pointer == '/') {\r | |
| 3088 | //\r | |
| 3089 | // Might be optional "/P" after "::".\r | |
| 3090 | //\r | |
| 3091 | if (CompressStart != AddressIndex) {\r | |
| 3092 | return RETURN_UNSUPPORTED;\r | |
| 3093 | }\r | |
| 3094 | } else {\r | |
| 3095 | break;\r | |
| 3096 | }\r | |
| 3097 | } else {\r | |
| 3098 | if (!ExpectPrefix) {\r | |
| 3099 | //\r | |
| 3100 | // Get X.\r | |
| 3101 | //\r | |
| 3102 | Status = AsciiStrHexToUintnS (Pointer, &End, &Uintn);\r | |
| 3103 | if (RETURN_ERROR (Status) || End - Pointer > 4) {\r | |
| 3104 | //\r | |
| 3105 | // Number of hexadecimal digit characters is no more than 4.\r | |
| 3106 | //\r | |
| 3107 | return RETURN_UNSUPPORTED;\r | |
| 3108 | }\r | |
| 3109 | Pointer = End;\r | |
| 3110 | //\r | |
| 3111 | // Uintn won't exceed MAX_UINT16 if number of hexadecimal digit characters is no more than 4.\r | |
| 3112 | //\r | |
| 5b0ce08a | 3113 | ASSERT (AddressIndex + 1 < ARRAY_SIZE (Address->Addr));\r |
| fb4dd857 RN |
3114 | LocalAddress.Addr[AddressIndex] = (UINT8) ((UINT16) Uintn >> 8);\r |
| 3115 | LocalAddress.Addr[AddressIndex + 1] = (UINT8) Uintn;\r | |
| 3116 | AddressIndex += 2;\r | |
| 3117 | } else {\r | |
| 3118 | //\r | |
| 3119 | // Get P, then exit the loop.\r | |
| 3120 | //\r | |
| 3121 | Status = AsciiStrDecimalToUintnS (Pointer, &End, &Uintn);\r | |
| 3122 | if (RETURN_ERROR (Status) || End == Pointer || Uintn > 128) {\r | |
| 3123 | //\r | |
| 3124 | // Prefix length should not exceed 128.\r | |
| 3125 | //\r | |
| 3126 | return RETURN_UNSUPPORTED;\r | |
| 3127 | }\r | |
| 3128 | LocalPrefixLength = (UINT8) Uintn;\r | |
| 3129 | Pointer = End;\r | |
| 3130 | break;\r | |
| 3131 | }\r | |
| 3132 | }\r | |
| 3133 | \r | |
| 3134 | //\r | |
| 3135 | // Skip ':' or "/"\r | |
| 3136 | //\r | |
| 3137 | if (*Pointer == '/') {\r | |
| 3138 | ExpectPrefix = TRUE;\r | |
| 3139 | } else if (*Pointer == ':') {\r | |
| 3140 | if (AddressIndex == ARRAY_SIZE (Address->Addr)) {\r | |
| 3141 | //\r | |
| 3142 | // Meet additional ":" after all 8 16-bit address\r | |
| 3143 | //\r | |
| 3144 | break;\r | |
| 3145 | }\r | |
| 3146 | } else {\r | |
| 3147 | //\r | |
| 3148 | // Meet other character that is not "/" or ":" after all 8 16-bit address\r | |
| 3149 | //\r | |
| 3150 | break;\r | |
| 3151 | }\r | |
| 3152 | Pointer++;\r | |
| 3153 | }\r | |
| 3154 | \r | |
| 3155 | if ((AddressIndex == ARRAY_SIZE (Address->Addr) && CompressStart != ARRAY_SIZE (Address->Addr)) ||\r | |
| 3156 | (AddressIndex != ARRAY_SIZE (Address->Addr) && CompressStart == ARRAY_SIZE (Address->Addr))\r | |
| 3157 | ) {\r | |
| 3158 | //\r | |
| 3159 | // Full length of address shall not have compressing zeros.\r | |
| 3160 | // Non-full length of address shall have compressing zeros.\r | |
| 3161 | //\r | |
| 3162 | return RETURN_UNSUPPORTED;\r | |
| 3163 | }\r | |
| 3164 | CopyMem (&Address->Addr[0], &LocalAddress.Addr[0], CompressStart);\r | |
| 3165 | ZeroMem (&Address->Addr[CompressStart], ARRAY_SIZE (Address->Addr) - AddressIndex);\r | |
| 5b0ce08a RN |
3166 | if (AddressIndex > CompressStart) {\r |
| 3167 | CopyMem (\r | |
| 3168 | &Address->Addr[CompressStart + ARRAY_SIZE (Address->Addr) - AddressIndex],\r | |
| 3169 | &LocalAddress.Addr[CompressStart],\r | |
| 3170 | AddressIndex - CompressStart\r | |
| 973f8862 HW |
3171 | );\r |
| 3172 | \r | |
| 5b0ce08a | 3173 | }\r |
| fb4dd857 RN |
3174 | \r |
| 3175 | if (PrefixLength != NULL) {\r | |
| 3176 | *PrefixLength = LocalPrefixLength;\r | |
| 3177 | }\r | |
| 3178 | if (EndPointer != NULL) {\r | |
| 3179 | *EndPointer = (CHAR8 *) Pointer;\r | |
| 3180 | }\r | |
| 3181 | \r | |
| 3182 | return RETURN_SUCCESS;\r | |
| 3183 | }\r | |
| 3184 | \r | |
| 3185 | /**\r | |
| 3186 | Convert a Null-terminated ASCII string to IPv4 address and prefix length.\r | |
| 3187 | \r | |
| 3188 | This function outputs a value of type IPv4_ADDRESS and may output a value\r | |
| 3189 | of type UINT8 by interpreting the contents of the ASCII string specified\r | |
| 3190 | by String. The format of the input ASCII string String is as follows:\r | |
| 3191 | \r | |
| 3192 | D.D.D.D[/P]\r | |
| 3193 | \r | |
| 3194 | D and P are decimal digit characters in the range [0-9]. The running zero in\r | |
| 3195 | the beginning of D and P will be ignored. /P is optional.\r | |
| 3196 | \r | |
| 3197 | When /P is not in the String, the function stops at the first character that is\r | |
| 3198 | not a valid decimal digit character after four D's are converted.\r | |
| 3199 | \r | |
| 3200 | When /P is in the String, the function stops at the first character that is not\r | |
| 3201 | a valid decimal digit character after P is converted.\r | |
| 3202 | \r | |
| fb4dd857 RN |
3203 | If EndPointer is not NULL and Address is translated from String, a pointer\r |
| 3204 | to the character that stopped the scan is stored at the location pointed to\r | |
| 3205 | by EndPointer.\r | |
| 3206 | \r | |
| 3207 | @param String Pointer to a Null-terminated ASCII string.\r | |
| 3208 | @param EndPointer Pointer to character that stops scan.\r | |
| 3209 | @param Address Pointer to the converted IPv4 address.\r | |
| 3210 | @param PrefixLength Pointer to the converted IPv4 address prefix\r | |
| 3211 | length. MAX_UINT8 is returned when /P is\r | |
| 3212 | not in the String.\r | |
| 3213 | \r | |
| 3214 | @retval RETURN_SUCCESS Address is translated from String.\r | |
| 3215 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 3216 | If Data is NULL.\r | |
| 3217 | @retval RETURN_UNSUPPORTED If String is not in the correct format.\r | |
| 3218 | If any decimal number converted from D\r | |
| 3219 | exceeds 255.\r | |
| 3220 | If the decimal number converted from P\r | |
| 3221 | exceeds 32.\r | |
| 3222 | \r | |
| 3223 | **/\r | |
| 3224 | RETURN_STATUS\r | |
| 3225 | EFIAPI\r | |
| 3226 | AsciiStrToIpv4Address (\r | |
| 3227 | IN CONST CHAR8 *String,\r | |
| 3228 | OUT CHAR8 **EndPointer, OPTIONAL\r | |
| 3229 | OUT IPv4_ADDRESS *Address,\r | |
| 3230 | OUT UINT8 *PrefixLength OPTIONAL\r | |
| 3231 | )\r | |
| 3232 | {\r | |
| 3233 | RETURN_STATUS Status;\r | |
| 3234 | UINTN AddressIndex;\r | |
| 3235 | UINTN Uintn;\r | |
| 3236 | IPv4_ADDRESS LocalAddress;\r | |
| 3237 | UINT8 LocalPrefixLength;\r | |
| 3238 | CHAR8 *Pointer;\r | |
| 3239 | \r | |
| 3240 | LocalPrefixLength = MAX_UINT8;\r | |
| 3241 | \r | |
| 3242 | //\r | |
| 3243 | // None of String or Address shall be a null pointer.\r | |
| 3244 | //\r | |
| 3245 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 3246 | SAFE_STRING_CONSTRAINT_CHECK ((Address != NULL), RETURN_INVALID_PARAMETER);\r | |
| 3247 | \r | |
| 3248 | for (Pointer = (CHAR8 *) String, AddressIndex = 0; AddressIndex < ARRAY_SIZE (Address->Addr) + 1;) {\r | |
| 3249 | if (!InternalAsciiIsDecimalDigitCharacter (*Pointer)) {\r | |
| 3250 | //\r | |
| 3251 | // D or P contains invalid characters.\r | |
| 3252 | //\r | |
| 3253 | break;\r | |
| 3254 | }\r | |
| 3255 | \r | |
| 3256 | //\r | |
| 3257 | // Get D or P.\r | |
| 3258 | //\r | |
| 3259 | Status = AsciiStrDecimalToUintnS ((CONST CHAR8 *) Pointer, &Pointer, &Uintn);\r | |
| 3260 | if (RETURN_ERROR (Status)) {\r | |
| 3261 | return RETURN_UNSUPPORTED;\r | |
| 3262 | }\r | |
| 3263 | if (AddressIndex == ARRAY_SIZE (Address->Addr)) {\r | |
| 3264 | //\r | |
| 3265 | // It's P.\r | |
| 3266 | //\r | |
| 3267 | if (Uintn > 32) {\r | |
| 3268 | return RETURN_UNSUPPORTED;\r | |
| 3269 | }\r | |
| 3270 | LocalPrefixLength = (UINT8) Uintn;\r | |
| 3271 | } else {\r | |
| 3272 | //\r | |
| 3273 | // It's D.\r | |
| 3274 | //\r | |
| 3275 | if (Uintn > MAX_UINT8) {\r | |
| 3276 | return RETURN_UNSUPPORTED;\r | |
| 3277 | }\r | |
| 3278 | LocalAddress.Addr[AddressIndex] = (UINT8) Uintn;\r | |
| 3279 | AddressIndex++;\r | |
| 3280 | }\r | |
| 3281 | \r | |
| 3282 | //\r | |
| 3283 | // Check the '.' or '/', depending on the AddressIndex.\r | |
| 3284 | //\r | |
| 3285 | if (AddressIndex == ARRAY_SIZE (Address->Addr)) {\r | |
| 3286 | if (*Pointer == '/') {\r | |
| 3287 | //\r | |
| 3288 | // '/P' is in the String.\r | |
| 3289 | // Skip "/" and get P in next loop.\r | |
| 3290 | //\r | |
| 3291 | Pointer++;\r | |
| 3292 | } else {\r | |
| 3293 | //\r | |
| 3294 | // '/P' is not in the String.\r | |
| 3295 | //\r | |
| 3296 | break;\r | |
| 3297 | }\r | |
| 3298 | } else if (AddressIndex < ARRAY_SIZE (Address->Addr)) {\r | |
| 3299 | if (*Pointer == '.') {\r | |
| 3300 | //\r | |
| 3301 | // D should be followed by '.'\r | |
| 3302 | //\r | |
| 3303 | Pointer++;\r | |
| 3304 | } else {\r | |
| 3305 | return RETURN_UNSUPPORTED;\r | |
| 3306 | }\r | |
| 3307 | }\r | |
| 3308 | }\r | |
| 3309 | \r | |
| 3310 | if (AddressIndex < ARRAY_SIZE (Address->Addr)) {\r | |
| 3311 | return RETURN_UNSUPPORTED;\r | |
| 3312 | }\r | |
| 3313 | \r | |
| 3314 | CopyMem (Address, &LocalAddress, sizeof (*Address));\r | |
| 3315 | if (PrefixLength != NULL) {\r | |
| 3316 | *PrefixLength = LocalPrefixLength;\r | |
| 3317 | }\r | |
| 3318 | if (EndPointer != NULL) {\r | |
| 3319 | *EndPointer = Pointer;\r | |
| 3320 | }\r | |
| 3321 | \r | |
| 3322 | return RETURN_SUCCESS;\r | |
| 3323 | }\r | |
| 3324 | \r | |
| 3325 | /**\r | |
| 3326 | Convert a Null-terminated ASCII GUID string to a value of type\r | |
| 3327 | EFI_GUID.\r | |
| 3328 | \r | |
| 3329 | This function outputs a GUID value by interpreting the contents of\r | |
| 3330 | the ASCII string specified by String. The format of the input\r | |
| 3331 | ASCII string String consists of 36 characters, as follows:\r | |
| 3332 | \r | |
| 3333 | aabbccdd-eeff-gghh-iijj-kkllmmnnoopp\r | |
| 3334 | \r | |
| 3335 | The pairs aa - pp are two characters in the range [0-9], [a-f] and\r | |
| 3336 | [A-F], with each pair representing a single byte hexadecimal value.\r | |
| 3337 | \r | |
| 3338 | The mapping between String and the EFI_GUID structure is as follows:\r | |
| 3339 | aa Data1[24:31]\r | |
| 3340 | bb Data1[16:23]\r | |
| 3341 | cc Data1[8:15]\r | |
| 3342 | dd Data1[0:7]\r | |
| 3343 | ee Data2[8:15]\r | |
| 3344 | ff Data2[0:7]\r | |
| 3345 | gg Data3[8:15]\r | |
| 3346 | hh Data3[0:7]\r | |
| 3347 | ii Data4[0:7]\r | |
| 3348 | jj Data4[8:15]\r | |
| 3349 | kk Data4[16:23]\r | |
| 3350 | ll Data4[24:31]\r | |
| 3351 | mm Data4[32:39]\r | |
| 3352 | nn Data4[40:47]\r | |
| 3353 | oo Data4[48:55]\r | |
| 3354 | pp Data4[56:63]\r | |
| 3355 | \r | |
| fb4dd857 RN |
3356 | @param String Pointer to a Null-terminated ASCII string.\r |
| 3357 | @param Guid Pointer to the converted GUID.\r | |
| 3358 | \r | |
| 3359 | @retval RETURN_SUCCESS Guid is translated from String.\r | |
| 3360 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 3361 | If Data is NULL.\r | |
| 3362 | @retval RETURN_UNSUPPORTED If String is not as the above format.\r | |
| 3363 | \r | |
| 3364 | **/\r | |
| 3365 | RETURN_STATUS\r | |
| 3366 | EFIAPI\r | |
| 3367 | AsciiStrToGuid (\r | |
| 3368 | IN CONST CHAR8 *String,\r | |
| 3369 | OUT GUID *Guid\r | |
| 3370 | )\r | |
| 3371 | {\r | |
| 3372 | RETURN_STATUS Status;\r | |
| 3373 | GUID LocalGuid;\r | |
| 3374 | \r | |
| 3375 | //\r | |
| 3376 | // None of String or Guid shall be a null pointer.\r | |
| 3377 | //\r | |
| 3378 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 3379 | SAFE_STRING_CONSTRAINT_CHECK ((Guid != NULL), RETURN_INVALID_PARAMETER);\r | |
| 3380 | \r | |
| 3381 | //\r | |
| 3382 | // Get aabbccdd in big-endian.\r | |
| 3383 | //\r | |
| 3384 | Status = AsciiStrHexToBytes (String, 2 * sizeof (LocalGuid.Data1), (UINT8 *) &LocalGuid.Data1, sizeof (LocalGuid.Data1));\r | |
| 3385 | if (RETURN_ERROR (Status) || String[2 * sizeof (LocalGuid.Data1)] != '-') {\r | |
| 3386 | return RETURN_UNSUPPORTED;\r | |
| 3387 | }\r | |
| 3388 | //\r | |
| 3389 | // Convert big-endian to little-endian.\r | |
| 3390 | //\r | |
| 3391 | LocalGuid.Data1 = SwapBytes32 (LocalGuid.Data1);\r | |
| 3392 | String += 2 * sizeof (LocalGuid.Data1) + 1;\r | |
| 3393 | \r | |
| 3394 | //\r | |
| 3395 | // Get eeff in big-endian.\r | |
| 3396 | //\r | |
| 3397 | Status = AsciiStrHexToBytes (String, 2 * sizeof (LocalGuid.Data2), (UINT8 *) &LocalGuid.Data2, sizeof (LocalGuid.Data2));\r | |
| 3398 | if (RETURN_ERROR (Status) || String[2 * sizeof (LocalGuid.Data2)] != '-') {\r | |
| 3399 | return RETURN_UNSUPPORTED;\r | |
| 3400 | }\r | |
| 3401 | //\r | |
| 3402 | // Convert big-endian to little-endian.\r | |
| 3403 | //\r | |
| 3404 | LocalGuid.Data2 = SwapBytes16 (LocalGuid.Data2);\r | |
| 3405 | String += 2 * sizeof (LocalGuid.Data2) + 1;\r | |
| 3406 | \r | |
| 3407 | //\r | |
| 3408 | // Get gghh in big-endian.\r | |
| 3409 | //\r | |
| 3410 | Status = AsciiStrHexToBytes (String, 2 * sizeof (LocalGuid.Data3), (UINT8 *) &LocalGuid.Data3, sizeof (LocalGuid.Data3));\r | |
| 3411 | if (RETURN_ERROR (Status) || String[2 * sizeof (LocalGuid.Data3)] != '-') {\r | |
| 3412 | return RETURN_UNSUPPORTED;\r | |
| 3413 | }\r | |
| 3414 | //\r | |
| 3415 | // Convert big-endian to little-endian.\r | |
| 3416 | //\r | |
| 3417 | LocalGuid.Data3 = SwapBytes16 (LocalGuid.Data3);\r | |
| 3418 | String += 2 * sizeof (LocalGuid.Data3) + 1;\r | |
| 3419 | \r | |
| 3420 | //\r | |
| 3421 | // Get iijj.\r | |
| 3422 | //\r | |
| 3423 | Status = AsciiStrHexToBytes (String, 2 * 2, &LocalGuid.Data4[0], 2);\r | |
| 3424 | if (RETURN_ERROR (Status) || String[2 * 2] != '-') {\r | |
| 3425 | return RETURN_UNSUPPORTED;\r | |
| 3426 | }\r | |
| 3427 | String += 2 * 2 + 1;\r | |
| 3428 | \r | |
| 3429 | //\r | |
| 3430 | // Get kkllmmnnoopp.\r | |
| 3431 | //\r | |
| 3432 | Status = AsciiStrHexToBytes (String, 2 * 6, &LocalGuid.Data4[2], 6);\r | |
| 3433 | if (RETURN_ERROR (Status)) {\r | |
| 3434 | return RETURN_UNSUPPORTED;\r | |
| 3435 | }\r | |
| 3436 | \r | |
| 3437 | CopyGuid (Guid, &LocalGuid);\r | |
| 3438 | return RETURN_SUCCESS;\r | |
| 3439 | }\r | |
| 3440 | \r | |
| 3441 | /**\r | |
| 3442 | Convert a Null-terminated ASCII hexadecimal string to a byte array.\r | |
| 3443 | \r | |
| 3444 | This function outputs a byte array by interpreting the contents of\r | |
| 3445 | the ASCII string specified by String in hexadecimal format. The format of\r | |
| 3446 | the input ASCII string String is:\r | |
| 3447 | \r | |
| 3448 | [XX]*\r | |
| 3449 | \r | |
| 3450 | X is a hexadecimal digit character in the range [0-9], [a-f] and [A-F].\r | |
| 3451 | The function decodes every two hexadecimal digit characters as one byte. The\r | |
| 3452 | decoding stops after Length of characters and outputs Buffer containing\r | |
| 3453 | (Length / 2) bytes.\r | |
| 3454 | \r | |
| fb4dd857 RN |
3455 | @param String Pointer to a Null-terminated ASCII string.\r |
| 3456 | @param Length The number of ASCII characters to decode.\r | |
| 3457 | @param Buffer Pointer to the converted bytes array.\r | |
| 3458 | @param MaxBufferSize The maximum size of Buffer.\r | |
| 3459 | \r | |
| 3460 | @retval RETURN_SUCCESS Buffer is translated from String.\r | |
| 3461 | @retval RETURN_INVALID_PARAMETER If String is NULL.\r | |
| 3462 | If Data is NULL.\r | |
| 3463 | If Length is not multiple of 2.\r | |
| 3464 | If PcdMaximumAsciiStringLength is not zero,\r | |
| 3465 | and Length is greater than\r | |
| 3466 | PcdMaximumAsciiStringLength.\r | |
| 3467 | @retval RETURN_UNSUPPORTED If Length of characters from String contain\r | |
| 3468 | a character that is not valid hexadecimal\r | |
| 3469 | digit characters, or a Null-terminator.\r | |
| 3470 | @retval RETURN_BUFFER_TOO_SMALL If MaxBufferSize is less than (Length / 2).\r | |
| 3471 | **/\r | |
| 3472 | RETURN_STATUS\r | |
| 3473 | EFIAPI\r | |
| 3474 | AsciiStrHexToBytes (\r | |
| 3475 | IN CONST CHAR8 *String,\r | |
| 3476 | IN UINTN Length,\r | |
| 3477 | OUT UINT8 *Buffer,\r | |
| 3478 | IN UINTN MaxBufferSize\r | |
| 3479 | )\r | |
| 3480 | {\r | |
| 3481 | UINTN Index;\r | |
| 3482 | \r | |
| 3483 | //\r | |
| 3484 | // 1. None of String or Buffer shall be a null pointer.\r | |
| 3485 | //\r | |
| 3486 | SAFE_STRING_CONSTRAINT_CHECK ((String != NULL), RETURN_INVALID_PARAMETER);\r | |
| 3487 | SAFE_STRING_CONSTRAINT_CHECK ((Buffer != NULL), RETURN_INVALID_PARAMETER);\r | |
| 3488 | \r | |
| 3489 | //\r | |
| 3490 | // 2. Length shall not be greater than ASCII_RSIZE_MAX.\r | |
| 3491 | //\r | |
| 3492 | if (ASCII_RSIZE_MAX != 0) {\r | |
| 3493 | SAFE_STRING_CONSTRAINT_CHECK ((Length <= ASCII_RSIZE_MAX), RETURN_INVALID_PARAMETER);\r | |
| 3494 | }\r | |
| 3495 | \r | |
| 3496 | //\r | |
| 3497 | // 3. Length shall not be odd.\r | |
| 3498 | //\r | |
| 3499 | SAFE_STRING_CONSTRAINT_CHECK (((Length & BIT0) == 0), RETURN_INVALID_PARAMETER);\r | |
| 3500 | \r | |
| 3501 | //\r | |
| 3502 | // 4. MaxBufferSize shall equal to or greater than Length / 2.\r | |
| 3503 | //\r | |
| 3504 | SAFE_STRING_CONSTRAINT_CHECK ((MaxBufferSize >= Length / 2), RETURN_BUFFER_TOO_SMALL);\r | |
| 3505 | \r | |
| 3506 | //\r | |
| 3507 | // 5. String shall not contains invalid hexadecimal digits.\r | |
| 3508 | //\r | |
| 3509 | for (Index = 0; Index < Length; Index++) {\r | |
| 3510 | if (!InternalAsciiIsHexaDecimalDigitCharacter (String[Index])) {\r | |
| 3511 | break;\r | |
| 3512 | }\r | |
| 3513 | }\r | |
| 3514 | if (Index != Length) {\r | |
| 3515 | return RETURN_UNSUPPORTED;\r | |
| 3516 | }\r | |
| 3517 | \r | |
| 3518 | //\r | |
| 3519 | // Convert the hex string to bytes.\r | |
| 3520 | //\r | |
| 3521 | for(Index = 0; Index < Length; Index++) {\r | |
| 3522 | \r | |
| 3523 | //\r | |
| 3524 | // For even characters, write the upper nibble for each buffer byte,\r | |
| 3525 | // and for even characters, the lower nibble.\r | |
| 3526 | //\r | |
| 3527 | if ((Index & BIT0) == 0) {\r | |
| 3528 | Buffer[Index / 2] = (UINT8) InternalAsciiHexCharToUintn (String[Index]) << 4;\r | |
| 3529 | } else {\r | |
| 3530 | Buffer[Index / 2] |= (UINT8) InternalAsciiHexCharToUintn (String[Index]);\r | |
| 3531 | }\r | |
| 3532 | }\r | |
| 3533 | return RETURN_SUCCESS;\r | |
| 3534 | }\r | |
| 3535 | \r |