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1 | /*++\r |
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2 | \r |
| cf171110 |
3 | Copyright (c) 2004-2006 Intel Corporation. All rights reserved\r |
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4 | This program and the accompanying materials are licensed and made available\r |
| 5 | under the terms and conditions of the BSD License which accompanies this\r |
| 6 | distribution. The full text of the license may be found at\r |
| 7 | http://opensource.org/licenses/bsd-license.php\r |
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8 | \r |
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9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
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11 | \r |
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12 | \r |
| 56fe62ce |
13 | Module Name:\r |
| 14 | \r |
| 15 | String.c\r |
| 16 | \r |
| 17 | Abstract:\r |
| 18 | \r |
| 19 | Unicode and ASCII string primatives.\r |
| 20 | \r |
| 21 | --*/\r |
| d2ec0d9e |
22 | \r |
| 23 | #include <assert.h>\r |
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24 | \r |
| 25 | #include <Common/UefiBaseTypes.h>\r |
| 26 | \r |
| 9776330c |
27 | #include <string.h>\r |
| 28 | \r |
| ce53a8c3 |
29 | #include "CommonLib.h"\r |
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30 | \r |
| 3ce2b1a8 |
31 | /**\r |
| 32 | Returns the length of a Null-terminated Unicode string.\r |
| 33 | \r |
| 34 | This function returns the number of Unicode characters in the Null-terminated\r |
| 35 | Unicode string specified by String.\r |
| 36 | \r |
| 37 | If String is NULL, then ASSERT().\r |
| 38 | \r |
| 39 | @param String Pointer to a Null-terminated Unicode string.\r |
| 40 | \r |
| 41 | @return The length of String.\r |
| 42 | \r |
| 43 | **/\r |
| 44 | UINTN\r |
| 45 | EFIAPI\r |
| 46 | StrLen (\r |
| 47 | IN CONST CHAR16 *String\r |
| 48 | )\r |
| 49 | {\r |
| 50 | UINTN Length;\r |
| 51 | \r |
| 52 | ASSERT (String != NULL);\r |
| 53 | \r |
| 54 | for (Length = 0; *String != L'\0'; String++, Length++) {\r |
| 55 | ;\r |
| 56 | }\r |
| 57 | return Length;\r |
| 58 | }\r |
| 59 | \r |
| 60 | /**\r |
| 61 | Returns the length of a Null-terminated ASCII string.\r |
| 62 | \r |
| 63 | This function returns the number of ASCII characters in the Null-terminated\r |
| 64 | ASCII string specified by String.\r |
| 65 | \r |
| 66 | If String is NULL, then ASSERT().\r |
| 67 | \r |
| 68 | @param String Pointer to a Null-terminated ASCII string.\r |
| 69 | \r |
| 70 | @return The length of String.\r |
| 71 | \r |
| 72 | **/\r |
| 73 | UINTN\r |
| 74 | EFIAPI\r |
| 75 | AsciiStrLen (\r |
| 76 | IN CONST CHAR8 *String\r |
| 77 | )\r |
| 78 | {\r |
| 79 | UINTN Length;\r |
| 80 | \r |
| 81 | ASSERT (String != NULL);\r |
| 82 | \r |
| 83 | for (Length = 0; *String != '\0'; String++, Length++) {\r |
| 84 | ;\r |
| 85 | }\r |
| 86 | return Length;\r |
| 87 | }\r |
| 88 | \r |
| d2ec0d9e |
89 | /**\r |
| 90 | Copies one Null-terminated Unicode string to another Null-terminated Unicode\r |
| 91 | string and returns the new Unicode string.\r |
| 92 | \r |
| 93 | This function copies the contents of the Unicode string Source to the Unicode\r |
| 94 | string Destination, and returns Destination. If Source and Destination\r |
| 95 | overlap, then the results are undefined.\r |
| 96 | \r |
| 97 | If Destination is NULL, then ASSERT().\r |
| 98 | If Source is NULL, then ASSERT().\r |
| 99 | If Source and Destination overlap, then ASSERT().\r |
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100 | \r |
| 101 | @param Destination Pointer to a Null-terminated Unicode string.\r |
| 102 | @param Source Pointer to a Null-terminated Unicode string.\r |
| 103 | \r |
| 104 | @return Destiantion\r |
| 105 | \r |
| 106 | **/\r |
| 107 | CHAR16 *\r |
| 108 | EFIAPI\r |
| 109 | StrCpy (\r |
| 110 | OUT CHAR16 *Destination,\r |
| 111 | IN CONST CHAR16 *Source\r |
| 112 | )\r |
| 113 | {\r |
| 114 | CHAR16 *ReturnValue;\r |
| 115 | \r |
| 116 | //\r |
| 117 | // Destination cannot be NULL\r |
| 118 | //\r |
| 119 | ASSERT (Destination != NULL);\r |
| 120 | \r |
| 121 | //\r |
| 122 | // Destination and source cannot overlap\r |
| 123 | //\r |
| 124 | ASSERT ((UINTN)(Destination - Source) > StrLen (Source));\r |
| 125 | ASSERT ((UINTN)(Source - Destination) > StrLen (Source));\r |
| 126 | \r |
| 127 | ReturnValue = Destination;\r |
| 128 | while (*Source) {\r |
| 129 | *(Destination++) = *(Source++);\r |
| 130 | }\r |
| 131 | *Destination = 0;\r |
| 132 | return ReturnValue;\r |
| 133 | }\r |
| 134 | \r |
| 135 | /**\r |
| 136 | Copies one Null-terminated Unicode string with a maximum length to another\r |
| 137 | Null-terminated Unicode string with a maximum length and returns the new\r |
| 138 | Unicode string.\r |
| 139 | \r |
| 140 | This function copies the contents of the Unicode string Source to the Unicode\r |
| 141 | string Destination, and returns Destination. At most, Length Unicode\r |
| 142 | characters are copied from Source to Destination. If Length is 0, then\r |
| 143 | Destination is returned unmodified. If Length is greater that the number of\r |
| 144 | Unicode characters in Source, then Destination is padded with Null Unicode\r |
| 145 | characters. If Source and Destination overlap, then the results are\r |
| 146 | undefined.\r |
| 147 | \r |
| 148 | If Destination is NULL, then ASSERT().\r |
| 149 | If Source is NULL, then ASSERT().\r |
| 150 | If Source and Destination overlap, then ASSERT().\r |
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151 | \r |
| 152 | @param Destination Pointer to a Null-terminated Unicode string.\r |
| 153 | @param Source Pointer to a Null-terminated Unicode string.\r |
| 154 | @param Length Maximum number of Unicode characters to copy.\r |
| 155 | \r |
| 156 | @return Destination\r |
| 157 | \r |
| 158 | **/\r |
| 159 | CHAR16 *\r |
| 160 | EFIAPI\r |
| 161 | StrnCpy (\r |
| 162 | OUT CHAR16 *Destination,\r |
| 163 | IN CONST CHAR16 *Source,\r |
| 164 | IN UINTN Length\r |
| 165 | )\r |
| 166 | {\r |
| 167 | CHAR16 *ReturnValue;\r |
| 168 | \r |
| 169 | if (Length == 0) {\r |
| 170 | return Destination;\r |
| 171 | }\r |
| 172 | \r |
| 173 | //\r |
| 174 | // Destination cannot be NULL if Length is not zero\r |
| 175 | //\r |
| 176 | ASSERT (Destination != NULL);\r |
| 177 | \r |
| 178 | //\r |
| 179 | // Destination and source cannot overlap\r |
| 180 | // Q: Does Source have to be NULL-terminated?\r |
| 181 | //\r |
| 182 | ASSERT ((UINTN)(Destination - Source) > StrLen (Source));\r |
| 183 | ASSERT ((UINTN)(Source - Destination) >= Length);\r |
| 184 | \r |
| 185 | ReturnValue = Destination;\r |
| 186 | \r |
| 187 | while ((*Source != L'\0') && (Length > 0)) {\r |
| 188 | *(Destination++) = *(Source++);\r |
| 189 | Length--;\r |
| 190 | }\r |
| 191 | \r |
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192 | memset (Destination, 0, Length * sizeof (*Destination));\r |
| 193 | return ReturnValue;\r |
| 194 | }\r |
| 195 | \r |
| d2ec0d9e |
196 | /**\r |
| 197 | Returns the size of a Null-terminated Unicode string in bytes, including the\r |
| 198 | Null terminator.\r |
| 199 | \r |
| 200 | This function returns the size, in bytes, of the Null-terminated Unicode\r |
| 201 | string specified by String.\r |
| 202 | \r |
| 203 | If String is NULL, then ASSERT().\r |
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204 | \r |
| 205 | @param String Pointer to a Null-terminated Unicode string.\r |
| 206 | \r |
| 207 | @return The size of String.\r |
| 208 | \r |
| 209 | **/\r |
| 210 | UINTN\r |
| 211 | EFIAPI\r |
| 212 | StrSize (\r |
| 213 | IN CONST CHAR16 *String\r |
| 214 | )\r |
| 215 | {\r |
| 216 | return (StrLen (String) + 1) * sizeof (*String);\r |
| 217 | }\r |
| 218 | \r |
| 219 | /**\r |
| 220 | Compares two Null-terminated Unicode strings, and returns the difference\r |
| 221 | between the first mismatched Unicode characters.\r |
| 222 | \r |
| 223 | This function compares the Null-terminated Unicode string FirstString to the\r |
| 224 | Null-terminated Unicode string SecondString. If FirstString is identical to\r |
| 225 | SecondString, then 0 is returned. Otherwise, the value returned is the first\r |
| 226 | mismatched Unicode character in SecondString subtracted from the first\r |
| 227 | mismatched Unicode character in FirstString.\r |
| 228 | \r |
| 229 | If FirstString is NULL, then ASSERT().\r |
| 230 | If SecondString is NULL, then ASSERT().\r |
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231 | \r |
| 232 | @param FirstString Pointer to a Null-terminated Unicode string.\r |
| 233 | @param SecondString Pointer to a Null-terminated Unicode string.\r |
| 234 | \r |
| 235 | @retval 0 FirstString is identical to SecondString.\r |
| 236 | @retval !=0 FirstString is not identical to SecondString.\r |
| 237 | \r |
| 238 | **/\r |
| 239 | INTN\r |
| 240 | EFIAPI\r |
| 241 | StrCmp (\r |
| 242 | IN CONST CHAR16 *FirstString,\r |
| 243 | IN CONST CHAR16 *SecondString\r |
| 244 | )\r |
| 245 | {\r |
| 246 | //\r |
| ce53a8c3 |
247 | // ASSERT both strings should never be zero\r |
| d2ec0d9e |
248 | //\r |
| 249 | ASSERT (StrSize (FirstString) != 0);\r |
| 250 | ASSERT (StrSize (SecondString) != 0);\r |
| 251 | \r |
| 252 | while ((*FirstString != L'\0') && (*FirstString == *SecondString)) {\r |
| 253 | FirstString++;\r |
| 254 | SecondString++;\r |
| 255 | }\r |
| 256 | return *FirstString - *SecondString;\r |
| 257 | }\r |
| 258 | \r |
| 259 | /**\r |
| 260 | Compares two Null-terminated Unicode strings with maximum lengths, and\r |
| 261 | returns the difference between the first mismatched Unicode characters.\r |
| 262 | \r |
| 263 | This function compares the Null-terminated Unicode string FirstString to the\r |
| 264 | Null-terminated Unicode string SecondString. At most, Length Unicode\r |
| 265 | characters will be compared. If Length is 0, then 0 is returned. If\r |
| 266 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r |
| 267 | value returned is the first mismatched Unicode character in SecondString\r |
| 268 | subtracted from the first mismatched Unicode character in FirstString.\r |
| 269 | \r |
| 270 | If FirstString is NULL, then ASSERT().\r |
| 271 | If SecondString is NULL, then ASSERT().\r |
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272 | \r |
| 273 | @param FirstString Pointer to a Null-terminated Unicode string.\r |
| 274 | @param SecondString Pointer to a Null-terminated Unicode string.\r |
| 275 | @param Length Maximum number of Unicode characters to compare.\r |
| 276 | \r |
| 277 | @retval 0 FirstString is identical to SecondString.\r |
| 278 | @retval !=0 FirstString is not identical to SecondString.\r |
| 279 | \r |
| 280 | **/\r |
| 281 | INTN\r |
| 282 | EFIAPI\r |
| 283 | StrnCmp (\r |
| 284 | IN CONST CHAR16 *FirstString,\r |
| 285 | IN CONST CHAR16 *SecondString,\r |
| 286 | IN UINTN Length\r |
| 287 | )\r |
| 288 | {\r |
| 289 | if (Length == 0) {\r |
| 290 | return 0;\r |
| 291 | }\r |
| 292 | \r |
| 293 | //\r |
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294 | // ASSERT both strings should never be zero\r |
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295 | //\r |
| 296 | ASSERT (StrSize (FirstString) != 0);\r |
| 297 | ASSERT (StrSize (SecondString) != 0);\r |
| 298 | \r |
| 299 | while ((*FirstString != L'\0') &&\r |
| 300 | (*FirstString == *SecondString) &&\r |
| 301 | (Length > 1)) {\r |
| 302 | FirstString++;\r |
| 303 | SecondString++;\r |
| 304 | Length--;\r |
| 305 | }\r |
| 306 | \r |
| 307 | return *FirstString - *SecondString;\r |
| 308 | }\r |
| 309 | \r |
| 310 | /**\r |
| 311 | Concatenates one Null-terminated Unicode string to another Null-terminated\r |
| 312 | Unicode string, and returns the concatenated Unicode string.\r |
| 313 | \r |
| 314 | This function concatenates two Null-terminated Unicode strings. The contents\r |
| 315 | of Null-terminated Unicode string Source are concatenated to the end of\r |
| 316 | Null-terminated Unicode string Destination. The Null-terminated concatenated\r |
| 317 | Unicode String is returned. If Source and Destination overlap, then the\r |
| 318 | results are undefined.\r |
| 319 | \r |
| 320 | If Destination is NULL, then ASSERT().\r |
| 321 | If Source is NULL, then ASSERT().\r |
| 322 | If Source and Destination overlap, then ASSERT().\r |
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323 | \r |
| 324 | @param Destination Pointer to a Null-terminated Unicode string.\r |
| 325 | @param Source Pointer to a Null-terminated Unicode string.\r |
| 326 | \r |
| 327 | @return Destination\r |
| 328 | \r |
| 329 | **/\r |
| 330 | CHAR16 *\r |
| 331 | EFIAPI\r |
| 332 | StrCat (\r |
| 333 | IN OUT CHAR16 *Destination,\r |
| 334 | IN CONST CHAR16 *Source\r |
| 335 | )\r |
| 336 | {\r |
| 337 | StrCpy (Destination + StrLen (Destination), Source);\r |
| 338 | \r |
| 339 | //\r |
| 340 | // Size of the resulting string should never be zero.\r |
| d2ec0d9e |
341 | //\r |
| 342 | ASSERT (StrSize (Destination) != 0);\r |
| 343 | return Destination;\r |
| 344 | }\r |
| 345 | \r |
| 346 | /**\r |
| 347 | Concatenates one Null-terminated Unicode string with a maximum length to the\r |
| 348 | end of another Null-terminated Unicode string, and returns the concatenated\r |
| 349 | Unicode string.\r |
| 350 | \r |
| 351 | This function concatenates two Null-terminated Unicode strings. The contents\r |
| 352 | of Null-terminated Unicode string Source are concatenated to the end of\r |
| 353 | Null-terminated Unicode string Destination, and Destination is returned. At\r |
| 354 | most, Length Unicode characters are concatenated from Source to the end of\r |
| 355 | Destination, and Destination is always Null-terminated. If Length is 0, then\r |
| 356 | Destination is returned unmodified. If Source and Destination overlap, then\r |
| 357 | the results are undefined.\r |
| 358 | \r |
| 359 | If Destination is NULL, then ASSERT().\r |
| 360 | If Source is NULL, then ASSERT().\r |
| 361 | If Source and Destination overlap, then ASSERT().\r |
| d2ec0d9e |
362 | \r |
| 363 | @param Destination Pointer to a Null-terminated Unicode string.\r |
| 364 | @param Source Pointer to a Null-terminated Unicode string.\r |
| 365 | @param Length Maximum number of Unicode characters to concatenate from\r |
| 366 | Source.\r |
| 367 | \r |
| 368 | @return Destination\r |
| 369 | \r |
| 370 | **/\r |
| 371 | CHAR16 *\r |
| 372 | EFIAPI\r |
| 373 | StrnCat (\r |
| 374 | IN OUT CHAR16 *Destination,\r |
| 375 | IN CONST CHAR16 *Source,\r |
| 376 | IN UINTN Length\r |
| 377 | )\r |
| 378 | {\r |
| 379 | StrnCpy (Destination + StrLen (Destination), Source, Length);\r |
| 380 | \r |
| 381 | //\r |
| 382 | // Size of the resulting string should never be zero.\r |
| d2ec0d9e |
383 | //\r |
| 384 | ASSERT (StrSize (Destination) != 0);\r |
| 385 | return Destination;\r |
| 386 | }\r |
| 387 | \r |
| 388 | /**\r |
| 389 | Copies one Null-terminated ASCII string to another Null-terminated ASCII\r |
| 390 | string and returns the new ASCII string.\r |
| 391 | \r |
| 392 | This function copies the contents of the ASCII string Source to the ASCII\r |
| 393 | string Destination, and returns Destination. If Source and Destination\r |
| 394 | overlap, then the results are undefined.\r |
| 395 | \r |
| 396 | If Destination is NULL, then ASSERT().\r |
| 397 | If Source is NULL, then ASSERT().\r |
| 398 | If Source and Destination overlap, then ASSERT().\r |
| d2ec0d9e |
399 | \r |
| 400 | @param Destination Pointer to a Null-terminated ASCII string.\r |
| 401 | @param Source Pointer to a Null-terminated ASCII string.\r |
| 402 | \r |
| 403 | @return Destination\r |
| 404 | \r |
| 405 | **/\r |
| 406 | CHAR8 *\r |
| 407 | EFIAPI\r |
| 408 | AsciiStrCpy (\r |
| 409 | OUT CHAR8 *Destination,\r |
| 410 | IN CONST CHAR8 *Source\r |
| 411 | )\r |
| 412 | {\r |
| 413 | CHAR8 *ReturnValue;\r |
| 414 | \r |
| 415 | //\r |
| 416 | // Destination cannot be NULL\r |
| 417 | //\r |
| 418 | ASSERT (Destination != NULL);\r |
| 419 | \r |
| 420 | //\r |
| 421 | // Destination and source cannot overlap\r |
| 422 | //\r |
| 423 | ASSERT ((UINTN)(Destination - Source) > AsciiStrLen (Source));\r |
| 424 | ASSERT ((UINTN)(Source - Destination) > AsciiStrLen (Source));\r |
| 425 | \r |
| 426 | ReturnValue = Destination;\r |
| 427 | while (*Source) {\r |
| 428 | *(Destination++) = *(Source++);\r |
| 429 | }\r |
| 430 | *Destination = 0;\r |
| 431 | return ReturnValue;\r |
| 432 | }\r |
| 433 | \r |
| 434 | /**\r |
| 435 | Copies one Null-terminated ASCII string with a maximum length to another\r |
| 436 | Null-terminated ASCII string with a maximum length and returns the new ASCII\r |
| 437 | string.\r |
| 438 | \r |
| 439 | This function copies the contents of the ASCII string Source to the ASCII\r |
| 440 | string Destination, and returns Destination. At most, Length ASCII characters\r |
| 441 | are copied from Source to Destination. If Length is 0, then Destination is\r |
| 442 | returned unmodified. If Length is greater that the number of ASCII characters\r |
| 443 | in Source, then Destination is padded with Null ASCII characters. If Source\r |
| 444 | and Destination overlap, then the results are undefined.\r |
| 445 | \r |
| 446 | If Destination is NULL, then ASSERT().\r |
| 447 | If Source is NULL, then ASSERT().\r |
| 448 | If Source and Destination overlap, then ASSERT().\r |
| d2ec0d9e |
449 | \r |
| 450 | @param Destination Pointer to a Null-terminated ASCII string.\r |
| 451 | @param Source Pointer to a Null-terminated ASCII string.\r |
| 452 | @param Length Maximum number of ASCII characters to copy.\r |
| 453 | \r |
| 454 | @return Destination\r |
| 455 | \r |
| 456 | **/\r |
| 457 | CHAR8 *\r |
| 458 | EFIAPI\r |
| 459 | AsciiStrnCpy (\r |
| 460 | OUT CHAR8 *Destination,\r |
| 461 | IN CONST CHAR8 *Source,\r |
| 462 | IN UINTN Length\r |
| 463 | )\r |
| 464 | {\r |
| 465 | CHAR8 *ReturnValue;\r |
| 466 | \r |
| 467 | if (Length == 0) {\r |
| 468 | return Destination;\r |
| 469 | }\r |
| 470 | \r |
| 471 | //\r |
| 472 | // Destination cannot be NULL\r |
| 473 | //\r |
| 474 | ASSERT (Destination != NULL);\r |
| 475 | \r |
| 476 | //\r |
| 477 | // Destination and source cannot overlap\r |
| 478 | //\r |
| 479 | ASSERT ((UINTN)(Destination - Source) > AsciiStrLen (Source));\r |
| 480 | ASSERT ((UINTN)(Source - Destination) >= Length);\r |
| 481 | \r |
| 482 | ReturnValue = Destination;\r |
| 483 | \r |
| 484 | while (*Source && Length > 0) {\r |
| 485 | *(Destination++) = *(Source++);\r |
| 486 | Length--;\r |
| 487 | }\r |
| 488 | \r |
| 489 | // ZeroMem (Destination, Length * sizeof (*Destination));\r |
| 490 | memset (Destination, 0, Length * sizeof (*Destination));\r |
| 491 | return ReturnValue;\r |
| 492 | }\r |
| 493 | \r |
| d2ec0d9e |
494 | /**\r |
| 495 | Returns the size of a Null-terminated ASCII string in bytes, including the\r |
| 496 | Null terminator.\r |
| 497 | \r |
| 498 | This function returns the size, in bytes, of the Null-terminated ASCII string\r |
| 499 | specified by String.\r |
| 500 | \r |
| 501 | If String is NULL, then ASSERT().\r |
| d2ec0d9e |
502 | \r |
| 503 | @param String Pointer to a Null-terminated ASCII string.\r |
| 504 | \r |
| 505 | @return The size of String.\r |
| 506 | \r |
| 507 | **/\r |
| 508 | UINTN\r |
| 509 | EFIAPI\r |
| 510 | AsciiStrSize (\r |
| 511 | IN CONST CHAR8 *String\r |
| 512 | )\r |
| 513 | {\r |
| 514 | return (AsciiStrLen (String) + 1) * sizeof (*String);\r |
| 515 | }\r |
| 516 | \r |
| 517 | /**\r |
| 518 | Compares two Null-terminated ASCII strings, and returns the difference\r |
| 519 | between the first mismatched ASCII characters.\r |
| 520 | \r |
| 521 | This function compares the Null-terminated ASCII string FirstString to the\r |
| 522 | Null-terminated ASCII string SecondString. If FirstString is identical to\r |
| 523 | SecondString, then 0 is returned. Otherwise, the value returned is the first\r |
| 524 | mismatched ASCII character in SecondString subtracted from the first\r |
| 525 | mismatched ASCII character in FirstString.\r |
| 526 | \r |
| 527 | If FirstString is NULL, then ASSERT().\r |
| 528 | If SecondString is NULL, then ASSERT().\r |
| d2ec0d9e |
529 | \r |
| 530 | @param FirstString Pointer to a Null-terminated ASCII string.\r |
| 531 | @param SecondString Pointer to a Null-terminated ASCII string.\r |
| 532 | \r |
| 533 | @retval 0 FirstString is identical to SecondString.\r |
| 534 | @retval !=0 FirstString is not identical to SecondString.\r |
| 535 | \r |
| 536 | **/\r |
| 537 | INTN\r |
| 538 | EFIAPI\r |
| 539 | AsciiStrCmp (\r |
| 540 | IN CONST CHAR8 *FirstString,\r |
| 541 | IN CONST CHAR8 *SecondString\r |
| 542 | )\r |
| 543 | {\r |
| 544 | //\r |
| ce53a8c3 |
545 | // ASSERT both strings should never be zero\r |
| d2ec0d9e |
546 | //\r |
| 547 | ASSERT (AsciiStrSize (FirstString));\r |
| 548 | ASSERT (AsciiStrSize (SecondString));\r |
| 549 | \r |
| 550 | while ((*FirstString != '\0') && (*FirstString == *SecondString)) {\r |
| 551 | FirstString++;\r |
| 552 | SecondString++;\r |
| 553 | }\r |
| 554 | \r |
| 555 | return *FirstString - *SecondString;\r |
| 556 | }\r |
| 557 | \r |
| 558 | STATIC\r |
| 559 | CHAR8\r |
| 560 | EFIAPI\r |
| 561 | AsciiToUpper (\r |
| 562 | IN CHAR8 Chr\r |
| 563 | )\r |
| 564 | {\r |
| 565 | return (Chr >= 'a' && Chr <= 'z') ? Chr - ('a' - 'A') : Chr;\r |
| 566 | }\r |
| 567 | \r |
| 568 | /**\r |
| 569 | Performs a case insensitive comparison of two Null-terminated ASCII strings,\r |
| 570 | and returns the difference between the first mismatched ASCII characters.\r |
| 571 | \r |
| 572 | This function performs a case insensitive comparison of the Null-terminated\r |
| 573 | ASCII string FirstString to the Null-terminated ASCII string SecondString. If\r |
| 574 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r |
| 575 | value returned is the first mismatched lower case ASCII character in\r |
| 576 | SecondString subtracted from the first mismatched lower case ASCII character\r |
| 577 | in FirstString.\r |
| 578 | \r |
| 579 | If FirstString is NULL, then ASSERT().\r |
| 580 | If SecondString is NULL, then ASSERT().\r |
| d2ec0d9e |
581 | \r |
| 582 | @param FirstString Pointer to a Null-terminated ASCII string.\r |
| 583 | @param SecondString Pointer to a Null-terminated ASCII string.\r |
| 584 | \r |
| 585 | @retval 0 FirstString is identical to SecondString using case insensitive\r |
| 586 | comparisons.\r |
| 587 | @retval !=0 FirstString is not identical to SecondString using case\r |
| 588 | insensitive comparisons.\r |
| 589 | \r |
| 590 | **/\r |
| 591 | INTN\r |
| 592 | EFIAPI\r |
| 593 | AsciiStriCmp (\r |
| 594 | IN CONST CHAR8 *FirstString,\r |
| 595 | IN CONST CHAR8 *SecondString\r |
| 596 | )\r |
| 597 | {\r |
| 598 | //\r |
| ce53a8c3 |
599 | // ASSERT both strings should never be zero\r |
| d2ec0d9e |
600 | //\r |
| 601 | ASSERT (AsciiStrSize (FirstString));\r |
| 602 | ASSERT (AsciiStrSize (SecondString));\r |
| 603 | \r |
| 604 | while ((*FirstString != '\0') &&\r |
| 605 | (AsciiToUpper (*FirstString) == AsciiToUpper (*SecondString))) {\r |
| 606 | FirstString++;\r |
| 607 | SecondString++;\r |
| 608 | }\r |
| 609 | \r |
| 610 | return AsciiToUpper (*FirstString) - AsciiToUpper (*SecondString);\r |
| 611 | }\r |
| 612 | \r |
| 613 | /**\r |
| 614 | Compares two Null-terminated ASCII strings with maximum lengths, and returns\r |
| 615 | the difference between the first mismatched ASCII characters.\r |
| 616 | \r |
| 617 | This function compares the Null-terminated ASCII string FirstString to the\r |
| 618 | Null-terminated ASCII string SecondString. At most, Length ASCII characters\r |
| 619 | will be compared. If Length is 0, then 0 is returned. If FirstString is\r |
| 620 | identical to SecondString, then 0 is returned. Otherwise, the value returned\r |
| 621 | is the first mismatched ASCII character in SecondString subtracted from the\r |
| 622 | first mismatched ASCII character in FirstString.\r |
| 623 | \r |
| 624 | If FirstString is NULL, then ASSERT().\r |
| 625 | If SecondString is NULL, then ASSERT().\r |
| d2ec0d9e |
626 | \r |
| 627 | @param FirstString Pointer to a Null-terminated ASCII string.\r |
| 628 | @param SecondString Pointer to a Null-terminated ASCII string.\r |
| 629 | \r |
| 630 | @retval 0 FirstString is identical to SecondString.\r |
| 631 | @retval !=0 FirstString is not identical to SecondString.\r |
| 632 | \r |
| 633 | **/\r |
| 634 | INTN\r |
| 635 | EFIAPI\r |
| 636 | AsciiStrnCmp (\r |
| 637 | IN CONST CHAR8 *FirstString,\r |
| 638 | IN CONST CHAR8 *SecondString,\r |
| 639 | IN UINTN Length\r |
| 640 | )\r |
| 641 | {\r |
| 642 | //\r |
| ce53a8c3 |
643 | // ASSERT both strings should never be zero\r |
| d2ec0d9e |
644 | //\r |
| 645 | ASSERT (AsciiStrSize (FirstString));\r |
| 646 | ASSERT (AsciiStrSize (SecondString));\r |
| 647 | \r |
| 648 | while ((*FirstString != '\0') &&\r |
| 649 | (*FirstString == *SecondString) &&\r |
| 650 | (Length > 1)) {\r |
| 651 | FirstString++;\r |
| 652 | SecondString++;\r |
| 653 | Length--;\r |
| 654 | }\r |
| 655 | return *FirstString - *SecondString;\r |
| 656 | }\r |
| 657 | \r |
| 658 | /**\r |
| 659 | Concatenates one Null-terminated ASCII string to another Null-terminated\r |
| 660 | ASCII string, and returns the concatenated ASCII string.\r |
| 661 | \r |
| 662 | This function concatenates two Null-terminated ASCII strings. The contents of\r |
| 663 | Null-terminated ASCII string Source are concatenated to the end of Null-\r |
| 664 | terminated ASCII string Destination. The Null-terminated concatenated ASCII\r |
| 665 | String is returned.\r |
| 666 | \r |
| 667 | If Destination is NULL, then ASSERT().\r |
| 668 | If Source is NULL, then ASSERT().\r |
| d2ec0d9e |
669 | \r |
| 670 | @param Destination Pointer to a Null-terminated ASCII string.\r |
| 671 | @param Source Pointer to a Null-terminated ASCII string.\r |
| 672 | \r |
| 673 | @return Destination\r |
| 674 | \r |
| 675 | **/\r |
| 676 | CHAR8 *\r |
| 677 | EFIAPI\r |
| 678 | AsciiStrCat (\r |
| 679 | IN OUT CHAR8 *Destination,\r |
| 680 | IN CONST CHAR8 *Source\r |
| 681 | )\r |
| 682 | {\r |
| 683 | AsciiStrCpy (Destination + AsciiStrLen (Destination), Source);\r |
| 684 | \r |
| 685 | //\r |
| 686 | // Size of the resulting string should never be zero.\r |
| d2ec0d9e |
687 | //\r |
| 688 | ASSERT (AsciiStrSize (Destination) != 0);\r |
| 689 | return Destination;\r |
| 690 | }\r |
| 691 | \r |
| 692 | /**\r |
| 693 | Concatenates one Null-terminated ASCII string with a maximum length to the\r |
| 694 | end of another Null-terminated ASCII string, and returns the concatenated\r |
| 695 | ASCII string.\r |
| 696 | \r |
| 697 | This function concatenates two Null-terminated ASCII strings. The contents\r |
| 698 | of Null-terminated ASCII string Source are concatenated to the end of Null-\r |
| 699 | terminated ASCII string Destination, and Destination is returned. At most,\r |
| 700 | Length ASCII characters are concatenated from Source to the end of\r |
| 701 | Destination, and Destination is always Null-terminated. If Length is 0, then\r |
| 702 | Destination is returned unmodified. If Source and Destination overlap, then\r |
| 703 | the results are undefined.\r |
| 704 | \r |
| 705 | If Destination is NULL, then ASSERT().\r |
| 706 | If Source is NULL, then ASSERT().\r |
| 707 | If Source and Destination overlap, then ASSERT().\r |
| d2ec0d9e |
708 | \r |
| 709 | @param Destination Pointer to a Null-terminated ASCII string.\r |
| 710 | @param Source Pointer to a Null-terminated ASCII string.\r |
| 711 | @param Length Maximum number of ASCII characters to concatenate from\r |
| 712 | Source.\r |
| 713 | \r |
| 714 | @return Destination\r |
| 715 | \r |
| 716 | **/\r |
| 717 | CHAR8 *\r |
| 718 | EFIAPI\r |
| 719 | AsciiStrnCat (\r |
| 720 | IN OUT CHAR8 *Destination,\r |
| 721 | IN CONST CHAR8 *Source,\r |
| 722 | IN UINTN Length\r |
| 723 | )\r |
| 724 | {\r |
| 725 | AsciiStrnCpy (Destination + AsciiStrLen (Destination), Source, Length);\r |
| 726 | \r |
| 727 | //\r |
| 728 | // Size of the resulting string should never be zero.\r |
| d2ec0d9e |
729 | //\r |
| 730 | ASSERT (AsciiStrSize (Destination) != 0);\r |
| 731 | return Destination;\r |
| 732 | }\r |
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