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1 | /** @file\r | |
2 | Unicode and ASCII string primatives.\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "BaseLibInternals.h"\r | |
16 | \r | |
17 | #define QUOTIENT_MAX_UINTN_DIVIDED_BY_10 ((UINTN) -1 / 10)\r | |
18 | #define REMAINDER_MAX_UINTN_DIVIDED_BY_10 ((UINTN) -1 % 10)\r | |
19 | \r | |
20 | #define QUOTIENT_MAX_UINTN_DIVIDED_BY_16 ((UINTN) -1 / 16)\r | |
21 | #define REMAINDER_MAX_UINTN_DIVIDED_BY_16 ((UINTN) -1 % 16)\r | |
22 | \r | |
23 | #define QUOTIENT_MAX_UINT64_DIVIDED_BY_10 ((UINT64) -1 / 10)\r | |
24 | #define REMAINDER_MAX_UINT64_DIVIDED_BY_10 ((UINT64) -1 % 10)\r | |
25 | \r | |
26 | #define QUOTIENT_MAX_UINT64_DIVIDED_BY_16 ((UINT64) -1 / 16)\r | |
27 | #define REMAINDER_MAX_UINT64_DIVIDED_BY_16 ((UINT64) -1 % 16)\r | |
28 | \r | |
29 | /**\r | |
30 | Copies one Null-terminated Unicode string to another Null-terminated Unicode\r | |
31 | string and returns the new Unicode string.\r | |
32 | \r | |
33 | This function copies the contents of the Unicode string Source to the Unicode\r | |
34 | string Destination, and returns Destination. If Source and Destination\r | |
35 | overlap, then the results are undefined.\r | |
36 | \r | |
37 | If Destination is NULL, then ASSERT().\r | |
38 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
39 | If Source is NULL, then ASSERT().\r | |
40 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
41 | If Source and Destination overlap, then ASSERT().\r | |
42 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r | |
43 | PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
44 | Null-terminator, then ASSERT().\r | |
45 | \r | |
46 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
47 | @param Source Pointer to a Null-terminated Unicode string.\r | |
48 | \r | |
49 | @return Destination.\r | |
50 | \r | |
51 | **/\r | |
52 | CHAR16 *\r | |
53 | EFIAPI\r | |
54 | StrCpy (\r | |
55 | OUT CHAR16 *Destination,\r | |
56 | IN CONST CHAR16 *Source\r | |
57 | )\r | |
58 | {\r | |
59 | CHAR16 *ReturnValue;\r | |
60 | \r | |
61 | //\r | |
62 | // Destination cannot be NULL\r | |
63 | //\r | |
64 | ASSERT (Destination != NULL);\r | |
65 | ASSERT (((UINTN) Destination & BIT0) == 0);\r | |
66 | \r | |
67 | //\r | |
68 | // Destination and source cannot overlap\r | |
69 | //\r | |
70 | ASSERT ((UINTN)(Destination - Source) > StrLen (Source));\r | |
71 | ASSERT ((UINTN)(Source - Destination) > StrLen (Source));\r | |
72 | \r | |
73 | ReturnValue = Destination;\r | |
74 | while (*Source != 0) {\r | |
75 | *(Destination++) = *(Source++);\r | |
76 | }\r | |
77 | *Destination = 0;\r | |
78 | return ReturnValue;\r | |
79 | }\r | |
80 | \r | |
81 | /**\r | |
82 | Copies up to a specified length from one Null-terminated Unicode string to \r | |
83 | another Null-terminated Unicode string and returns the new Unicode string.\r | |
84 | \r | |
85 | This function copies the contents of the Unicode string Source to the Unicode\r | |
86 | string Destination, and returns Destination. At most, Length Unicode\r | |
87 | characters are copied from Source to Destination. If Length is 0, then\r | |
88 | Destination is returned unmodified. If Length is greater that the number of\r | |
89 | Unicode characters in Source, then Destination is padded with Null Unicode\r | |
90 | characters. If Source and Destination overlap, then the results are\r | |
91 | undefined.\r | |
92 | \r | |
93 | If Length > 0 and Destination is NULL, then ASSERT().\r | |
94 | If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
95 | If Length > 0 and Source is NULL, then ASSERT().\r | |
96 | If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
97 | If Source and Destination overlap, then ASSERT().\r | |
98 | If PcdMaximumUnicodeStringLength is not zero, and Length is greater than \r | |
99 | PcdMaximumUnicodeStringLength, then ASSERT().\r | |
100 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r | |
101 | PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r | |
102 | then ASSERT().\r | |
103 | \r | |
104 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
105 | @param Source Pointer to a Null-terminated Unicode string.\r | |
106 | @param Length Maximum number of Unicode characters to copy.\r | |
107 | \r | |
108 | @return Destination.\r | |
109 | \r | |
110 | **/\r | |
111 | CHAR16 *\r | |
112 | EFIAPI\r | |
113 | StrnCpy (\r | |
114 | OUT CHAR16 *Destination,\r | |
115 | IN CONST CHAR16 *Source,\r | |
116 | IN UINTN Length\r | |
117 | )\r | |
118 | {\r | |
119 | CHAR16 *ReturnValue;\r | |
120 | \r | |
121 | if (Length == 0) {\r | |
122 | return Destination;\r | |
123 | }\r | |
124 | \r | |
125 | //\r | |
126 | // Destination cannot be NULL if Length is not zero\r | |
127 | //\r | |
128 | ASSERT (Destination != NULL);\r | |
129 | ASSERT (((UINTN) Destination & BIT0) == 0);\r | |
130 | \r | |
131 | //\r | |
132 | // Destination and source cannot overlap\r | |
133 | //\r | |
134 | ASSERT ((UINTN)(Destination - Source) > StrLen (Source));\r | |
135 | ASSERT ((UINTN)(Source - Destination) >= Length);\r | |
136 | \r | |
137 | if (PcdGet32 (PcdMaximumUnicodeStringLength) != 0) {\r | |
138 | ASSERT (Length <= PcdGet32 (PcdMaximumUnicodeStringLength));\r | |
139 | }\r | |
140 | \r | |
141 | ReturnValue = Destination;\r | |
142 | \r | |
143 | while ((*Source != L'\0') && (Length > 0)) {\r | |
144 | *(Destination++) = *(Source++);\r | |
145 | Length--;\r | |
146 | }\r | |
147 | \r | |
148 | ZeroMem (Destination, Length * sizeof (*Destination));\r | |
149 | return ReturnValue;\r | |
150 | }\r | |
151 | \r | |
152 | /**\r | |
153 | Returns the length of a Null-terminated Unicode string.\r | |
154 | \r | |
155 | This function returns the number of Unicode characters in the Null-terminated\r | |
156 | Unicode string specified by String.\r | |
157 | \r | |
158 | If String is NULL, then ASSERT().\r | |
159 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
160 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r | |
161 | PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
162 | Null-terminator, then ASSERT().\r | |
163 | \r | |
164 | @param String Pointer to a Null-terminated Unicode string.\r | |
165 | \r | |
166 | @return The length of String.\r | |
167 | \r | |
168 | **/\r | |
169 | UINTN\r | |
170 | EFIAPI\r | |
171 | StrLen (\r | |
172 | IN CONST CHAR16 *String\r | |
173 | )\r | |
174 | {\r | |
175 | UINTN Length;\r | |
176 | \r | |
177 | ASSERT (String != NULL);\r | |
178 | ASSERT (((UINTN) String & BIT0) == 0);\r | |
179 | \r | |
180 | for (Length = 0; *String != L'\0'; String++, Length++) {\r | |
181 | //\r | |
182 | // If PcdMaximumUnicodeStringLength is not zero,\r | |
183 | // length should not more than PcdMaximumUnicodeStringLength\r | |
184 | //\r | |
185 | if (PcdGet32 (PcdMaximumUnicodeStringLength) != 0) {\r | |
186 | ASSERT (Length < PcdGet32 (PcdMaximumUnicodeStringLength));\r | |
187 | }\r | |
188 | }\r | |
189 | return Length;\r | |
190 | }\r | |
191 | \r | |
192 | /**\r | |
193 | Returns the size of a Null-terminated Unicode string in bytes, including the\r | |
194 | Null terminator.\r | |
195 | \r | |
196 | This function returns the size, in bytes, of the Null-terminated Unicode string \r | |
197 | specified by String.\r | |
198 | \r | |
199 | If String is NULL, then ASSERT().\r | |
200 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
201 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r | |
202 | PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
203 | Null-terminator, then ASSERT().\r | |
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 FirstString is not aligned on a 16-bit boundary, then ASSERT().\r | |
231 | If SecondString is NULL, then ASSERT().\r | |
232 | If SecondString is not aligned on a 16-bit boundary, then ASSERT().\r | |
233 | If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more\r | |
234 | than PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
235 | Null-terminator, then ASSERT().\r | |
236 | If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more\r | |
237 | than PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
238 | Null-terminator, then ASSERT().\r | |
239 | \r | |
240 | @param FirstString Pointer to a Null-terminated Unicode string.\r | |
241 | @param SecondString Pointer to a Null-terminated Unicode string.\r | |
242 | \r | |
243 | @retval 0 FirstString is identical to SecondString.\r | |
244 | @return others FirstString is not identical to SecondString.\r | |
245 | \r | |
246 | **/\r | |
247 | INTN\r | |
248 | EFIAPI\r | |
249 | StrCmp (\r | |
250 | IN CONST CHAR16 *FirstString,\r | |
251 | IN CONST CHAR16 *SecondString\r | |
252 | )\r | |
253 | {\r | |
254 | //\r | |
255 | // ASSERT both strings are less long than PcdMaximumUnicodeStringLength\r | |
256 | //\r | |
257 | ASSERT (StrSize (FirstString) != 0);\r | |
258 | ASSERT (StrSize (SecondString) != 0);\r | |
259 | \r | |
260 | while ((*FirstString != L'\0') && (*FirstString == *SecondString)) {\r | |
261 | FirstString++;\r | |
262 | SecondString++;\r | |
263 | }\r | |
264 | return *FirstString - *SecondString;\r | |
265 | }\r | |
266 | \r | |
267 | /**\r | |
268 | Compares up to a specified length the contents of two Null-terminated Unicode strings,\r | |
269 | and returns the difference between the first mismatched Unicode characters.\r | |
270 | \r | |
271 | This function compares the Null-terminated Unicode string FirstString to the\r | |
272 | Null-terminated Unicode string SecondString. At most, Length Unicode\r | |
273 | characters will be compared. If Length is 0, then 0 is returned. If\r | |
274 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r | |
275 | value returned is the first mismatched Unicode character in SecondString\r | |
276 | subtracted from the first mismatched Unicode character in FirstString.\r | |
277 | \r | |
278 | If Length > 0 and FirstString is NULL, then ASSERT().\r | |
279 | If Length > 0 and FirstString is not aligned on a 16-bit boundary, then ASSERT().\r | |
280 | If Length > 0 and SecondString is NULL, then ASSERT().\r | |
281 | If Length > 0 and SecondString is not aligned on a 16-bit boundary, then ASSERT().\r | |
282 | If PcdMaximumUnicodeStringLength is not zero, and Length is greater than\r | |
283 | PcdMaximumUnicodeStringLength, then ASSERT().\r | |
284 | If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more than\r | |
285 | PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r | |
286 | then ASSERT().\r | |
287 | If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more than\r | |
288 | PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r | |
289 | then ASSERT().\r | |
290 | \r | |
291 | @param FirstString Pointer to a Null-terminated Unicode string.\r | |
292 | @param SecondString Pointer to a Null-terminated Unicode string.\r | |
293 | @param Length Maximum number of Unicode characters to compare.\r | |
294 | \r | |
295 | @retval 0 FirstString is identical to SecondString.\r | |
296 | @return others FirstString is not identical to SecondString.\r | |
297 | \r | |
298 | **/\r | |
299 | INTN\r | |
300 | EFIAPI\r | |
301 | StrnCmp (\r | |
302 | IN CONST CHAR16 *FirstString,\r | |
303 | IN CONST CHAR16 *SecondString,\r | |
304 | IN UINTN Length\r | |
305 | )\r | |
306 | {\r | |
307 | if (Length == 0) {\r | |
308 | return 0;\r | |
309 | }\r | |
310 | \r | |
311 | //\r | |
312 | // ASSERT both strings are less long than PcdMaximumUnicodeStringLength.\r | |
313 | // Length tests are performed inside StrLen().\r | |
314 | //\r | |
315 | ASSERT (StrSize (FirstString) != 0);\r | |
316 | ASSERT (StrSize (SecondString) != 0);\r | |
317 | \r | |
318 | if (PcdGet32 (PcdMaximumUnicodeStringLength) != 0) {\r | |
319 | ASSERT (Length <= PcdGet32 (PcdMaximumUnicodeStringLength));\r | |
320 | }\r | |
321 | \r | |
322 | while ((*FirstString != L'\0') &&\r | |
323 | (*FirstString == *SecondString) &&\r | |
324 | (Length > 1)) {\r | |
325 | FirstString++;\r | |
326 | SecondString++;\r | |
327 | Length--;\r | |
328 | }\r | |
329 | \r | |
330 | return *FirstString - *SecondString;\r | |
331 | }\r | |
332 | \r | |
333 | /**\r | |
334 | Concatenates one Null-terminated Unicode string to another Null-terminated\r | |
335 | Unicode string, and returns the concatenated Unicode string.\r | |
336 | \r | |
337 | This function concatenates two Null-terminated Unicode strings. The contents\r | |
338 | of Null-terminated Unicode string Source are concatenated to the end of\r | |
339 | Null-terminated Unicode string Destination. The Null-terminated concatenated\r | |
340 | Unicode String is returned. If Source and Destination overlap, then the\r | |
341 | results are undefined.\r | |
342 | \r | |
343 | If Destination is NULL, then ASSERT().\r | |
344 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
345 | If Source is NULL, then ASSERT().\r | |
346 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
347 | If Source and Destination overlap, then ASSERT().\r | |
348 | If PcdMaximumUnicodeStringLength is not zero, and Destination contains more\r | |
349 | than PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
350 | Null-terminator, then ASSERT().\r | |
351 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r | |
352 | PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
353 | Null-terminator, then ASSERT().\r | |
354 | If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination\r | |
355 | and Source results in a Unicode string with more than\r | |
356 | PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
357 | Null-terminator, then ASSERT().\r | |
358 | \r | |
359 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
360 | @param Source Pointer to a Null-terminated Unicode string.\r | |
361 | \r | |
362 | @return Destination.\r | |
363 | \r | |
364 | **/\r | |
365 | CHAR16 *\r | |
366 | EFIAPI\r | |
367 | StrCat (\r | |
368 | IN OUT CHAR16 *Destination,\r | |
369 | IN CONST CHAR16 *Source\r | |
370 | )\r | |
371 | {\r | |
372 | StrCpy (Destination + StrLen (Destination), Source);\r | |
373 | \r | |
374 | //\r | |
375 | // Size of the resulting string should never be zero.\r | |
376 | // PcdMaximumUnicodeStringLength is tested inside StrLen().\r | |
377 | //\r | |
378 | ASSERT (StrSize (Destination) != 0);\r | |
379 | return Destination;\r | |
380 | }\r | |
381 | \r | |
382 | /**\r | |
383 | Concatenates up to a specified length one Null-terminated Unicode to the end \r | |
384 | of another Null-terminated Unicode string, and returns the concatenated \r | |
385 | Unicode string.\r | |
386 | \r | |
387 | This function concatenates two Null-terminated Unicode strings. The contents\r | |
388 | of Null-terminated Unicode string Source are concatenated to the end of\r | |
389 | Null-terminated Unicode string Destination, and Destination is returned. At\r | |
390 | most, Length Unicode characters are concatenated from Source to the end of\r | |
391 | Destination, and Destination is always Null-terminated. If Length is 0, then\r | |
392 | Destination is returned unmodified. If Source and Destination overlap, then\r | |
393 | the results are undefined.\r | |
394 | \r | |
395 | If Destination is NULL, then ASSERT().\r | |
396 | If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
397 | If Length > 0 and Source is NULL, then ASSERT().\r | |
398 | If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
399 | If Source and Destination overlap, then ASSERT().\r | |
400 | If PcdMaximumUnicodeStringLength is not zero, and Length is greater than \r | |
401 | PcdMaximumUnicodeStringLength, then ASSERT().\r | |
402 | If PcdMaximumUnicodeStringLength is not zero, and Destination contains more\r | |
403 | than PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
404 | Null-terminator, then ASSERT().\r | |
405 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r | |
406 | PcdMaximumUnicodeStringLength Unicode characters, not including the\r | |
407 | Null-terminator, then ASSERT().\r | |
408 | If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination\r | |
409 | and Source results in a Unicode string with more than PcdMaximumUnicodeStringLength\r | |
410 | Unicode characters, not including the Null-terminator, then ASSERT().\r | |
411 | \r | |
412 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
413 | @param Source Pointer to a Null-terminated Unicode string.\r | |
414 | @param Length Maximum number of Unicode characters to concatenate from\r | |
415 | Source.\r | |
416 | \r | |
417 | @return Destination.\r | |
418 | \r | |
419 | **/\r | |
420 | CHAR16 *\r | |
421 | EFIAPI\r | |
422 | StrnCat (\r | |
423 | IN OUT CHAR16 *Destination,\r | |
424 | IN CONST CHAR16 *Source,\r | |
425 | IN UINTN Length\r | |
426 | )\r | |
427 | {\r | |
428 | UINTN DestinationLen;\r | |
429 | \r | |
430 | DestinationLen = StrLen (Destination);\r | |
431 | StrnCpy (Destination + DestinationLen, Source, Length);\r | |
432 | Destination[DestinationLen + Length] = L'\0';\r | |
433 | \r | |
434 | //\r | |
435 | // Size of the resulting string should never be zero.\r | |
436 | // PcdMaximumUnicodeStringLength is tested inside StrLen().\r | |
437 | //\r | |
438 | ASSERT (StrSize (Destination) != 0);\r | |
439 | return Destination;\r | |
440 | }\r | |
441 | \r | |
442 | /**\r | |
443 | Returns the first occurrence of a Null-terminated Unicode sub-string\r | |
444 | in a Null-terminated Unicode string.\r | |
445 | \r | |
446 | This function scans the contents of the Null-terminated Unicode string\r | |
447 | specified by String and returns the first occurrence of SearchString.\r | |
448 | If SearchString is not found in String, then NULL is returned. If\r | |
449 | the length of SearchString is zero, then String is\r | |
450 | returned.\r | |
451 | \r | |
452 | If String is NULL, then ASSERT().\r | |
453 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
454 | If SearchString is NULL, then ASSERT().\r | |
455 | If SearchString is not aligned on a 16-bit boundary, then ASSERT().\r | |
456 | \r | |
457 | If PcdMaximumUnicodeStringLength is not zero, and SearchString\r | |
458 | or String contains more than PcdMaximumUnicodeStringLength Unicode\r | |
459 | characters, not including the Null-terminator, then ASSERT().\r | |
460 | \r | |
461 | @param String Pointer to a Null-terminated Unicode string.\r | |
462 | @param SearchString Pointer to a Null-terminated Unicode string to search for.\r | |
463 | \r | |
464 | @retval NULL If the SearchString does not appear in String.\r | |
465 | @return others If there is a match.\r | |
466 | \r | |
467 | **/\r | |
468 | CHAR16 *\r | |
469 | EFIAPI\r | |
470 | StrStr (\r | |
471 | IN CONST CHAR16 *String,\r | |
472 | IN CONST CHAR16 *SearchString\r | |
473 | )\r | |
474 | {\r | |
475 | CONST CHAR16 *FirstMatch;\r | |
476 | CONST CHAR16 *SearchStringTmp;\r | |
477 | \r | |
478 | //\r | |
479 | // ASSERT both strings are less long than PcdMaximumUnicodeStringLength.\r | |
480 | // Length tests are performed inside StrLen().\r | |
481 | //\r | |
482 | ASSERT (StrSize (String) != 0);\r | |
483 | ASSERT (StrSize (SearchString) != 0);\r | |
484 | \r | |
485 | if (*SearchString == L'\0') {\r | |
486 | return (CHAR16 *) String;\r | |
487 | }\r | |
488 | \r | |
489 | while (*String != L'\0') {\r | |
490 | SearchStringTmp = SearchString;\r | |
491 | FirstMatch = String;\r | |
492 | \r | |
493 | while ((*String == *SearchStringTmp) \r | |
494 | && (*String != L'\0')) {\r | |
495 | String++;\r | |
496 | SearchStringTmp++;\r | |
497 | } \r | |
498 | \r | |
499 | if (*SearchStringTmp == L'\0') {\r | |
500 | return (CHAR16 *) FirstMatch;\r | |
501 | }\r | |
502 | \r | |
503 | if (*String == L'\0') {\r | |
504 | return NULL;\r | |
505 | }\r | |
506 | \r | |
507 | String = FirstMatch + 1;\r | |
508 | }\r | |
509 | \r | |
510 | return NULL;\r | |
511 | }\r | |
512 | \r | |
513 | /**\r | |
514 | Check if a Unicode character is a decimal character.\r | |
515 | \r | |
516 | This internal function checks if a Unicode character is a \r | |
517 | decimal character. The valid decimal character is from\r | |
518 | L'0' to L'9'.\r | |
519 | \r | |
520 | @param Char The character to check against.\r | |
521 | \r | |
522 | @retval TRUE If the Char is a decmial character.\r | |
523 | @retval FALSE If the Char is not a decmial character.\r | |
524 | \r | |
525 | **/\r | |
526 | BOOLEAN\r | |
527 | EFIAPI\r | |
528 | InternalIsDecimalDigitCharacter (\r | |
529 | IN CHAR16 Char\r | |
530 | )\r | |
531 | {\r | |
532 | return (BOOLEAN) (Char >= L'0' && Char <= L'9');\r | |
533 | }\r | |
534 | \r | |
535 | /**\r | |
536 | Convert a Unicode character to upper case only if \r | |
537 | it maps to a valid small-case ASCII character.\r | |
538 | \r | |
539 | This internal function only deal with Unicode character\r | |
540 | which maps to a valid small-case ASCII character, i.e.\r | |
541 | L'a' to L'z'. For other Unicode character, the input character\r | |
542 | is returned directly.\r | |
543 | \r | |
544 | @param Char The character to convert.\r | |
545 | \r | |
546 | @retval LowerCharacter If the Char is with range L'a' to L'z'.\r | |
547 | @retval Unchanged Otherwise.\r | |
548 | \r | |
549 | **/\r | |
550 | CHAR16\r | |
551 | EFIAPI\r | |
552 | InternalCharToUpper (\r | |
553 | IN CHAR16 Char\r | |
554 | )\r | |
555 | {\r | |
556 | if (Char >= L'a' && Char <= L'z') {\r | |
557 | return (CHAR16) (Char - (L'a' - L'A'));\r | |
558 | }\r | |
559 | \r | |
560 | return Char;\r | |
561 | }\r | |
562 | \r | |
563 | /**\r | |
564 | Convert a Unicode character to numerical value.\r | |
565 | \r | |
566 | This internal function only deal with Unicode character\r | |
567 | which maps to a valid hexadecimal ASII character, i.e.\r | |
568 | L'0' to L'9', L'a' to L'f' or L'A' to L'F'. For other \r | |
569 | Unicode character, the value returned does not make sense.\r | |
570 | \r | |
571 | @param Char The character to convert.\r | |
572 | \r | |
573 | @return The numerical value converted.\r | |
574 | \r | |
575 | **/\r | |
576 | UINTN\r | |
577 | EFIAPI\r | |
578 | InternalHexCharToUintn (\r | |
579 | IN CHAR16 Char\r | |
580 | )\r | |
581 | {\r | |
582 | if (InternalIsDecimalDigitCharacter (Char)) {\r | |
583 | return Char - L'0';\r | |
584 | }\r | |
585 | \r | |
586 | return (UINTN) (10 + InternalCharToUpper (Char) - L'A');\r | |
587 | }\r | |
588 | \r | |
589 | /**\r | |
590 | Check if a Unicode character is a hexadecimal character.\r | |
591 | \r | |
592 | This internal function checks if a Unicode character is a \r | |
593 | decimal character. The valid hexadecimal character is \r | |
594 | L'0' to L'9', L'a' to L'f', or L'A' to L'F'.\r | |
595 | \r | |
596 | \r | |
597 | @param Char The character to check against.\r | |
598 | \r | |
599 | @retval TRUE If the Char is a hexadecmial character.\r | |
600 | @retval FALSE If the Char is not a hexadecmial character.\r | |
601 | \r | |
602 | **/\r | |
603 | BOOLEAN\r | |
604 | EFIAPI\r | |
605 | InternalIsHexaDecimalDigitCharacter (\r | |
606 | IN CHAR16 Char\r | |
607 | )\r | |
608 | {\r | |
609 | \r | |
610 | return (BOOLEAN) (InternalIsDecimalDigitCharacter (Char) ||\r | |
611 | (Char >= L'A' && Char <= L'F') ||\r | |
612 | (Char >= L'a' && Char <= L'f'));\r | |
613 | }\r | |
614 | \r | |
615 | /**\r | |
616 | Convert a Null-terminated Unicode decimal string to a value of\r | |
617 | type UINTN.\r | |
618 | \r | |
619 | This function returns a value of type UINTN by interpreting the contents\r | |
620 | of the Unicode string specified by String as a decimal number. The format\r | |
621 | of the input Unicode string String is:\r | |
622 | \r | |
623 | [spaces] [decimal digits].\r | |
624 | \r | |
625 | The valid decimal digit character is in the range [0-9]. The\r | |
626 | function will ignore the pad space, which includes spaces or\r | |
627 | tab characters, before [decimal digits]. The running zero in the\r | |
628 | beginning of [decimal digits] will be ignored. Then, the function\r | |
629 | stops at the first character that is a not a valid decimal character\r | |
630 | or a Null-terminator, whichever one comes first.\r | |
631 | \r | |
632 | If String is NULL, then ASSERT().\r | |
633 | If String is not aligned in a 16-bit boundary, then ASSERT().\r | |
634 | If String has only pad spaces, then 0 is returned.\r | |
635 | If String has no pad spaces or valid decimal digits,\r | |
636 | then 0 is returned.\r | |
637 | If the number represented by String overflows according\r | |
638 | to the range defined by UINTN, then ASSERT().\r | |
639 | \r | |
640 | If PcdMaximumUnicodeStringLength is not zero, and String contains\r | |
641 | more than PcdMaximumUnicodeStringLength Unicode characters, not including\r | |
642 | the Null-terminator, then ASSERT().\r | |
643 | \r | |
644 | @param String Pointer to a Null-terminated Unicode string.\r | |
645 | \r | |
646 | @retval Value translated from String.\r | |
647 | \r | |
648 | **/\r | |
649 | UINTN\r | |
650 | EFIAPI\r | |
651 | StrDecimalToUintn (\r | |
652 | IN CONST CHAR16 *String\r | |
653 | )\r | |
654 | {\r | |
655 | UINTN Result;\r | |
656 | \r | |
657 | //\r | |
658 | // ASSERT String is less long than PcdMaximumUnicodeStringLength.\r | |
659 | // Length tests are performed inside StrLen().\r | |
660 | //\r | |
661 | ASSERT (StrSize (String) != 0);\r | |
662 | \r | |
663 | //\r | |
664 | // Ignore the pad spaces (space or tab)\r | |
665 | //\r | |
666 | while ((*String == L' ') || (*String == L'\t')) {\r | |
667 | String++;\r | |
668 | }\r | |
669 | \r | |
670 | //\r | |
671 | // Ignore leading Zeros after the spaces\r | |
672 | //\r | |
673 | while (*String == L'0') {\r | |
674 | String++;\r | |
675 | }\r | |
676 | \r | |
677 | Result = 0;\r | |
678 | \r | |
679 | while (InternalIsDecimalDigitCharacter (*String)) {\r | |
680 | //\r | |
681 | // If the number represented by String overflows according \r | |
682 | // to the range defined by UINTN, then ASSERT().\r | |
683 | //\r | |
684 | ASSERT ((Result < QUOTIENT_MAX_UINTN_DIVIDED_BY_10) ||\r | |
685 | ((Result == QUOTIENT_MAX_UINTN_DIVIDED_BY_10) &&\r | |
686 | (*String - L'0') <= REMAINDER_MAX_UINTN_DIVIDED_BY_10)\r | |
687 | );\r | |
688 | \r | |
689 | Result = Result * 10 + (*String - L'0');\r | |
690 | String++;\r | |
691 | }\r | |
692 | \r | |
693 | return Result;\r | |
694 | }\r | |
695 | \r | |
696 | \r | |
697 | /**\r | |
698 | Convert a Null-terminated Unicode decimal string to a value of\r | |
699 | type UINT64.\r | |
700 | \r | |
701 | This function returns a value of type UINT64 by interpreting the contents\r | |
702 | of the Unicode string specified by String as a decimal number. The format\r | |
703 | of the input Unicode string String is:\r | |
704 | \r | |
705 | [spaces] [decimal digits].\r | |
706 | \r | |
707 | The valid decimal digit character is in the range [0-9]. The\r | |
708 | function will ignore the pad space, which includes spaces or\r | |
709 | tab characters, before [decimal digits]. The running zero in the\r | |
710 | beginning of [decimal digits] will be ignored. Then, the function\r | |
711 | stops at the first character that is a not a valid decimal character\r | |
712 | or a Null-terminator, whichever one comes first.\r | |
713 | \r | |
714 | If String is NULL, then ASSERT().\r | |
715 | If String is not aligned in a 16-bit boundary, then ASSERT().\r | |
716 | If String has only pad spaces, then 0 is returned.\r | |
717 | If String has no pad spaces or valid decimal digits,\r | |
718 | then 0 is returned.\r | |
719 | If the number represented by String overflows according\r | |
720 | to the range defined by UINT64, then ASSERT().\r | |
721 | \r | |
722 | If PcdMaximumUnicodeStringLength is not zero, and String contains\r | |
723 | more than PcdMaximumUnicodeStringLength Unicode characters, not including\r | |
724 | the Null-terminator, then ASSERT().\r | |
725 | \r | |
726 | @param String Pointer to a Null-terminated Unicode string.\r | |
727 | \r | |
728 | @retval Value translated from String.\r | |
729 | \r | |
730 | **/\r | |
731 | UINT64\r | |
732 | EFIAPI\r | |
733 | StrDecimalToUint64 (\r | |
734 | IN CONST CHAR16 *String\r | |
735 | )\r | |
736 | {\r | |
737 | UINT64 Result;\r | |
738 | \r | |
739 | //\r | |
740 | // ASSERT String is less long than PcdMaximumUnicodeStringLength.\r | |
741 | // Length tests are performed inside StrLen().\r | |
742 | //\r | |
743 | ASSERT (StrSize (String) != 0);\r | |
744 | \r | |
745 | //\r | |
746 | // Ignore the pad spaces (space or tab)\r | |
747 | //\r | |
748 | while ((*String == L' ') || (*String == L'\t')) {\r | |
749 | String++;\r | |
750 | }\r | |
751 | \r | |
752 | //\r | |
753 | // Ignore leading Zeros after the spaces\r | |
754 | //\r | |
755 | while (*String == L'0') {\r | |
756 | String++;\r | |
757 | }\r | |
758 | \r | |
759 | Result = 0;\r | |
760 | \r | |
761 | while (InternalIsDecimalDigitCharacter (*String)) {\r | |
762 | //\r | |
763 | // If the number represented by String overflows according \r | |
764 | // to the range defined by UINTN, then ASSERT().\r | |
765 | //\r | |
766 | ASSERT ((Result < QUOTIENT_MAX_UINT64_DIVIDED_BY_10) || \r | |
767 | ((Result == QUOTIENT_MAX_UINT64_DIVIDED_BY_10) && \r | |
768 | (*String - L'0') <= REMAINDER_MAX_UINT64_DIVIDED_BY_10)\r | |
769 | );\r | |
770 | \r | |
771 | Result = MultU64x32 (Result, 10) + (*String - L'0');\r | |
772 | String++;\r | |
773 | }\r | |
774 | \r | |
775 | return Result;\r | |
776 | }\r | |
777 | \r | |
778 | /**\r | |
779 | Convert a Null-terminated Unicode hexadecimal string to a value of type UINTN.\r | |
780 | \r | |
781 | This function returns a value of type UINTN by interpreting the contents\r | |
782 | of the Unicode string specified by String as a hexadecimal number.\r | |
783 | The format of the input Unicode string String is:\r | |
784 | \r | |
785 | [spaces][zeros][x][hexadecimal digits].\r | |
786 | \r | |
787 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r | |
788 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r | |
789 | If "x" appears in the input string, it must be prefixed with at least one 0.\r | |
790 | The function will ignore the pad space, which includes spaces or tab characters,\r | |
791 | before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or\r | |
792 | [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the\r | |
793 | first valid hexadecimal digit. Then, the function stops at the first character that is\r | |
794 | a not a valid hexadecimal character or NULL, whichever one comes first.\r | |
795 | \r | |
796 | If String is NULL, then ASSERT().\r | |
797 | If String is not aligned in a 16-bit boundary, then ASSERT().\r | |
798 | If String has only pad spaces, then zero is returned.\r | |
799 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits,\r | |
800 | then zero is returned.\r | |
801 | If the number represented by String overflows according to the range defined by\r | |
802 | UINTN, then ASSERT().\r | |
803 | \r | |
804 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r | |
805 | PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r | |
806 | then ASSERT().\r | |
807 | \r | |
808 | @param String Pointer to a Null-terminated Unicode string.\r | |
809 | \r | |
810 | @retval Value translated from String.\r | |
811 | \r | |
812 | **/\r | |
813 | UINTN\r | |
814 | EFIAPI\r | |
815 | StrHexToUintn (\r | |
816 | IN CONST CHAR16 *String\r | |
817 | )\r | |
818 | {\r | |
819 | UINTN Result;\r | |
820 | \r | |
821 | //\r | |
822 | // ASSERT String is less long than PcdMaximumUnicodeStringLength.\r | |
823 | // Length tests are performed inside StrLen().\r | |
824 | //\r | |
825 | ASSERT (StrSize (String) != 0);\r | |
826 | \r | |
827 | //\r | |
828 | // Ignore the pad spaces (space or tab) \r | |
829 | //\r | |
830 | while ((*String == L' ') || (*String == L'\t')) {\r | |
831 | String++;\r | |
832 | }\r | |
833 | \r | |
834 | //\r | |
835 | // Ignore leading Zeros after the spaces\r | |
836 | //\r | |
837 | while (*String == L'0') {\r | |
838 | String++;\r | |
839 | }\r | |
840 | \r | |
841 | if (InternalCharToUpper (*String) == L'X') {\r | |
842 | if (*(String - 1) != L'0') {\r | |
843 | return 0;\r | |
844 | }\r | |
845 | //\r | |
846 | // Skip the 'X'\r | |
847 | //\r | |
848 | String++;\r | |
849 | }\r | |
850 | \r | |
851 | Result = 0;\r | |
852 | \r | |
853 | while (InternalIsHexaDecimalDigitCharacter (*String)) {\r | |
854 | //\r | |
855 | // If the Hex Number represented by String overflows according \r | |
856 | // to the range defined by UINTN, then ASSERT().\r | |
857 | //\r | |
858 | ASSERT ((Result < QUOTIENT_MAX_UINTN_DIVIDED_BY_16) ||\r | |
859 | ((Result == QUOTIENT_MAX_UINTN_DIVIDED_BY_16) && \r | |
860 | (InternalHexCharToUintn (*String) <= REMAINDER_MAX_UINTN_DIVIDED_BY_16))\r | |
861 | );\r | |
862 | \r | |
863 | Result = (Result << 4) + InternalHexCharToUintn (*String);\r | |
864 | String++;\r | |
865 | }\r | |
866 | \r | |
867 | return Result;\r | |
868 | }\r | |
869 | \r | |
870 | \r | |
871 | /**\r | |
872 | Convert a Null-terminated Unicode hexadecimal string to a value of type UINT64.\r | |
873 | \r | |
874 | This function returns a value of type UINT64 by interpreting the contents\r | |
875 | of the Unicode string specified by String as a hexadecimal number.\r | |
876 | The format of the input Unicode string String is\r | |
877 | \r | |
878 | [spaces][zeros][x][hexadecimal digits].\r | |
879 | \r | |
880 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r | |
881 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix.\r | |
882 | If "x" appears in the input string, it must be prefixed with at least one 0.\r | |
883 | The function will ignore the pad space, which includes spaces or tab characters,\r | |
884 | before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or\r | |
885 | [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the\r | |
886 | first valid hexadecimal digit. Then, the function stops at the first character that is\r | |
887 | a not a valid hexadecimal character or NULL, whichever one comes first.\r | |
888 | \r | |
889 | If String is NULL, then ASSERT().\r | |
890 | If String is not aligned in a 16-bit boundary, then ASSERT().\r | |
891 | If String has only pad spaces, then zero is returned.\r | |
892 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits,\r | |
893 | then zero is returned.\r | |
894 | If the number represented by String overflows according to the range defined by\r | |
895 | UINT64, then ASSERT().\r | |
896 | \r | |
897 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r | |
898 | PcdMaximumUnicodeStringLength Unicode characters, not including the Null-terminator,\r | |
899 | then ASSERT().\r | |
900 | \r | |
901 | @param String Pointer to a Null-terminated Unicode string.\r | |
902 | \r | |
903 | @retval Value translated from String.\r | |
904 | \r | |
905 | **/\r | |
906 | UINT64\r | |
907 | EFIAPI\r | |
908 | StrHexToUint64 (\r | |
909 | IN CONST CHAR16 *String\r | |
910 | )\r | |
911 | {\r | |
912 | UINT64 Result;\r | |
913 | \r | |
914 | //\r | |
915 | // ASSERT String is less long than PcdMaximumUnicodeStringLength.\r | |
916 | // Length tests are performed inside StrLen().\r | |
917 | //\r | |
918 | ASSERT (StrSize (String) != 0);\r | |
919 | \r | |
920 | //\r | |
921 | // Ignore the pad spaces (space or tab) \r | |
922 | //\r | |
923 | while ((*String == L' ') || (*String == L'\t')) {\r | |
924 | String++;\r | |
925 | }\r | |
926 | \r | |
927 | //\r | |
928 | // Ignore leading Zeros after the spaces\r | |
929 | //\r | |
930 | while (*String == L'0') {\r | |
931 | String++;\r | |
932 | }\r | |
933 | \r | |
934 | if (InternalCharToUpper (*String) == L'X') {\r | |
935 | ASSERT (*(String - 1) == L'0');\r | |
936 | if (*(String - 1) != L'0') {\r | |
937 | return 0;\r | |
938 | }\r | |
939 | //\r | |
940 | // Skip the 'X'\r | |
941 | //\r | |
942 | String++;\r | |
943 | }\r | |
944 | \r | |
945 | Result = 0;\r | |
946 | \r | |
947 | while (InternalIsHexaDecimalDigitCharacter (*String)) {\r | |
948 | //\r | |
949 | // If the Hex Number represented by String overflows according \r | |
950 | // to the range defined by UINTN, then ASSERT().\r | |
951 | //\r | |
952 | ASSERT ((Result < QUOTIENT_MAX_UINT64_DIVIDED_BY_16)|| \r | |
953 | ((Result == QUOTIENT_MAX_UINT64_DIVIDED_BY_16) && \r | |
954 | (InternalHexCharToUintn (*String) <= REMAINDER_MAX_UINT64_DIVIDED_BY_16))\r | |
955 | );\r | |
956 | \r | |
957 | Result = LShiftU64 (Result, 4);\r | |
958 | Result = Result + InternalHexCharToUintn (*String);\r | |
959 | String++;\r | |
960 | }\r | |
961 | \r | |
962 | return Result;\r | |
963 | }\r | |
964 | \r | |
965 | /**\r | |
966 | Check if a ASCII character is a decimal character.\r | |
967 | \r | |
968 | This internal function checks if a Unicode character is a \r | |
969 | decimal character. The valid decimal character is from\r | |
970 | '0' to '9'.\r | |
971 | \r | |
972 | @param Char The character to check against.\r | |
973 | \r | |
974 | @retval TRUE If the Char is a decmial character.\r | |
975 | @retval FALSE If the Char is not a decmial character.\r | |
976 | \r | |
977 | **/\r | |
978 | BOOLEAN\r | |
979 | EFIAPI\r | |
980 | InternalAsciiIsDecimalDigitCharacter (\r | |
981 | IN CHAR8 Char\r | |
982 | )\r | |
983 | {\r | |
984 | return (BOOLEAN) (Char >= '0' && Char <= '9');\r | |
985 | }\r | |
986 | \r | |
987 | /**\r | |
988 | Check if a ASCII character is a hexadecimal character.\r | |
989 | \r | |
990 | This internal function checks if a ASCII character is a \r | |
991 | decimal character. The valid hexadecimal character is \r | |
992 | L'0' to L'9', L'a' to L'f', or L'A' to L'F'.\r | |
993 | \r | |
994 | \r | |
995 | @param Char The character to check against.\r | |
996 | \r | |
997 | @retval TRUE If the Char is a hexadecmial character.\r | |
998 | @retval FALSE If the Char is not a hexadecmial character.\r | |
999 | \r | |
1000 | **/\r | |
1001 | BOOLEAN\r | |
1002 | EFIAPI\r | |
1003 | InternalAsciiIsHexaDecimalDigitCharacter (\r | |
1004 | IN CHAR8 Char\r | |
1005 | )\r | |
1006 | {\r | |
1007 | \r | |
1008 | return (BOOLEAN) (InternalAsciiIsDecimalDigitCharacter (Char) ||\r | |
1009 | (Char >= 'A' && Char <= 'F') ||\r | |
1010 | (Char >= 'a' && Char <= 'f'));\r | |
1011 | }\r | |
1012 | \r | |
1013 | /**\r | |
1014 | Convert a Null-terminated Unicode string to a Null-terminated\r | |
1015 | ASCII string and returns the ASCII string.\r | |
1016 | \r | |
1017 | This function converts the content of the Unicode string Source\r | |
1018 | to the ASCII string Destination by copying the lower 8 bits of\r | |
1019 | each Unicode character. It returns Destination.\r | |
1020 | \r | |
1021 | If any Unicode characters in Source contain non-zero value in\r | |
1022 | the upper 8 bits, then ASSERT().\r | |
1023 | \r | |
1024 | If Destination is NULL, then ASSERT().\r | |
1025 | If Source is NULL, then ASSERT().\r | |
1026 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
1027 | If Source and Destination overlap, then ASSERT().\r | |
1028 | \r | |
1029 | If PcdMaximumUnicodeStringLength is not zero, and Source contains\r | |
1030 | more than PcdMaximumUnicodeStringLength Unicode characters, not including\r | |
1031 | the Null-terminator, then ASSERT().\r | |
1032 | \r | |
1033 | If PcdMaximumAsciiStringLength is not zero, and Source contains more\r | |
1034 | than PcdMaximumAsciiStringLength Unicode characters, not including the\r | |
1035 | Null-terminator, then ASSERT().\r | |
1036 | \r | |
1037 | @param Source Pointer to a Null-terminated Unicode string.\r | |
1038 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1039 | \r | |
1040 | @return Destination.\r | |
1041 | \r | |
1042 | **/\r | |
1043 | CHAR8 *\r | |
1044 | EFIAPI\r | |
1045 | UnicodeStrToAsciiStr (\r | |
1046 | IN CONST CHAR16 *Source,\r | |
1047 | OUT CHAR8 *Destination\r | |
1048 | )\r | |
1049 | {\r | |
1050 | CHAR8 *ReturnValue;\r | |
1051 | \r | |
1052 | ASSERT (Destination != NULL);\r | |
1053 | \r | |
1054 | //\r | |
1055 | // ASSERT if Source is long than PcdMaximumUnicodeStringLength.\r | |
1056 | // Length tests are performed inside StrLen().\r | |
1057 | //\r | |
1058 | ASSERT (StrSize (Source) != 0);\r | |
1059 | \r | |
1060 | //\r | |
1061 | // Source and Destination should not overlap\r | |
1062 | //\r | |
1063 | ASSERT ((UINTN) ((CHAR16 *) Destination - Source) > StrLen (Source));\r | |
1064 | ASSERT ((UINTN) ((CHAR8 *) Source - Destination) > StrLen (Source));\r | |
1065 | \r | |
1066 | \r | |
1067 | ReturnValue = Destination;\r | |
1068 | while (*Source != '\0') {\r | |
1069 | //\r | |
1070 | // If any Unicode characters in Source contain \r | |
1071 | // non-zero value in the upper 8 bits, then ASSERT().\r | |
1072 | //\r | |
1073 | ASSERT (*Source < 0x100);\r | |
1074 | *(Destination++) = (CHAR8) *(Source++);\r | |
1075 | }\r | |
1076 | \r | |
1077 | *Destination = '\0';\r | |
1078 | \r | |
1079 | //\r | |
1080 | // ASSERT Original Destination is less long than PcdMaximumAsciiStringLength.\r | |
1081 | // Length tests are performed inside AsciiStrLen().\r | |
1082 | //\r | |
1083 | ASSERT (AsciiStrSize (ReturnValue) != 0);\r | |
1084 | \r | |
1085 | return ReturnValue;\r | |
1086 | }\r | |
1087 | \r | |
1088 | \r | |
1089 | /**\r | |
1090 | Copies one Null-terminated ASCII string to another Null-terminated ASCII\r | |
1091 | string and returns the new ASCII string.\r | |
1092 | \r | |
1093 | This function copies the contents of the ASCII string Source to the ASCII\r | |
1094 | string Destination, and returns Destination. If Source and Destination\r | |
1095 | overlap, then the results are undefined.\r | |
1096 | \r | |
1097 | If Destination is NULL, then ASSERT().\r | |
1098 | If Source is NULL, then ASSERT().\r | |
1099 | If Source and Destination overlap, then ASSERT().\r | |
1100 | If PcdMaximumAsciiStringLength is not zero and Source contains more than\r | |
1101 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1102 | then ASSERT().\r | |
1103 | \r | |
1104 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1105 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1106 | \r | |
1107 | @return Destination\r | |
1108 | \r | |
1109 | **/\r | |
1110 | CHAR8 *\r | |
1111 | EFIAPI\r | |
1112 | AsciiStrCpy (\r | |
1113 | OUT CHAR8 *Destination,\r | |
1114 | IN CONST CHAR8 *Source\r | |
1115 | )\r | |
1116 | {\r | |
1117 | CHAR8 *ReturnValue;\r | |
1118 | \r | |
1119 | //\r | |
1120 | // Destination cannot be NULL\r | |
1121 | //\r | |
1122 | ASSERT (Destination != NULL);\r | |
1123 | \r | |
1124 | //\r | |
1125 | // Destination and source cannot overlap\r | |
1126 | //\r | |
1127 | ASSERT ((UINTN)(Destination - Source) > AsciiStrLen (Source));\r | |
1128 | ASSERT ((UINTN)(Source - Destination) > AsciiStrLen (Source));\r | |
1129 | \r | |
1130 | ReturnValue = Destination;\r | |
1131 | while (*Source != 0) {\r | |
1132 | *(Destination++) = *(Source++);\r | |
1133 | }\r | |
1134 | *Destination = 0;\r | |
1135 | return ReturnValue;\r | |
1136 | }\r | |
1137 | \r | |
1138 | /**\r | |
1139 | Copies up to a specified length one Null-terminated ASCII string to another \r | |
1140 | Null-terminated ASCII string and returns the new ASCII string.\r | |
1141 | \r | |
1142 | This function copies the contents of the ASCII string Source to the ASCII\r | |
1143 | string Destination, and returns Destination. At most, Length ASCII characters\r | |
1144 | are copied from Source to Destination. If Length is 0, then Destination is\r | |
1145 | returned unmodified. If Length is greater that the number of ASCII characters\r | |
1146 | in Source, then Destination is padded with Null ASCII characters. If Source\r | |
1147 | and Destination overlap, then the results are undefined.\r | |
1148 | \r | |
1149 | If Destination is NULL, then ASSERT().\r | |
1150 | If Source is NULL, then ASSERT().\r | |
1151 | If Source and Destination overlap, then ASSERT().\r | |
1152 | If PcdMaximumAsciiStringLength is not zero, and Length is greater than \r | |
1153 | PcdMaximumAsciiStringLength, then ASSERT().\r | |
1154 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r | |
1155 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1156 | then ASSERT().\r | |
1157 | \r | |
1158 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1159 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1160 | @param Length Maximum number of ASCII characters to copy.\r | |
1161 | \r | |
1162 | @return Destination\r | |
1163 | \r | |
1164 | **/\r | |
1165 | CHAR8 *\r | |
1166 | EFIAPI\r | |
1167 | AsciiStrnCpy (\r | |
1168 | OUT CHAR8 *Destination,\r | |
1169 | IN CONST CHAR8 *Source,\r | |
1170 | IN UINTN Length\r | |
1171 | )\r | |
1172 | {\r | |
1173 | CHAR8 *ReturnValue;\r | |
1174 | \r | |
1175 | if (Length == 0) {\r | |
1176 | return Destination;\r | |
1177 | }\r | |
1178 | \r | |
1179 | //\r | |
1180 | // Destination cannot be NULL\r | |
1181 | //\r | |
1182 | ASSERT (Destination != NULL);\r | |
1183 | \r | |
1184 | //\r | |
1185 | // Destination and source cannot overlap\r | |
1186 | //\r | |
1187 | ASSERT ((UINTN)(Destination - Source) > AsciiStrLen (Source));\r | |
1188 | ASSERT ((UINTN)(Source - Destination) >= Length);\r | |
1189 | \r | |
1190 | if (PcdGet32 (PcdMaximumAsciiStringLength) != 0) {\r | |
1191 | ASSERT (Length <= PcdGet32 (PcdMaximumAsciiStringLength));\r | |
1192 | }\r | |
1193 | \r | |
1194 | ReturnValue = Destination;\r | |
1195 | \r | |
1196 | while (*Source != 0 && Length > 0) {\r | |
1197 | *(Destination++) = *(Source++);\r | |
1198 | Length--;\r | |
1199 | }\r | |
1200 | \r | |
1201 | ZeroMem (Destination, Length * sizeof (*Destination));\r | |
1202 | return ReturnValue;\r | |
1203 | }\r | |
1204 | \r | |
1205 | /**\r | |
1206 | Returns the length of a Null-terminated ASCII string.\r | |
1207 | \r | |
1208 | This function returns the number of ASCII characters in the Null-terminated\r | |
1209 | ASCII string specified by String.\r | |
1210 | \r | |
1211 | If Length > 0 and Destination is NULL, then ASSERT().\r | |
1212 | If Length > 0 and Source is NULL, then ASSERT().\r | |
1213 | If PcdMaximumAsciiStringLength is not zero and String contains more than\r | |
1214 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1215 | then ASSERT().\r | |
1216 | \r | |
1217 | @param String Pointer to a Null-terminated ASCII string.\r | |
1218 | \r | |
1219 | @return The length of String.\r | |
1220 | \r | |
1221 | **/\r | |
1222 | UINTN\r | |
1223 | EFIAPI\r | |
1224 | AsciiStrLen (\r | |
1225 | IN CONST CHAR8 *String\r | |
1226 | )\r | |
1227 | {\r | |
1228 | UINTN Length;\r | |
1229 | \r | |
1230 | ASSERT (String != NULL);\r | |
1231 | \r | |
1232 | for (Length = 0; *String != '\0'; String++, Length++) {\r | |
1233 | //\r | |
1234 | // If PcdMaximumUnicodeStringLength is not zero,\r | |
1235 | // length should not more than PcdMaximumUnicodeStringLength\r | |
1236 | //\r | |
1237 | if (PcdGet32 (PcdMaximumAsciiStringLength) != 0) {\r | |
1238 | ASSERT (Length < PcdGet32 (PcdMaximumAsciiStringLength));\r | |
1239 | }\r | |
1240 | }\r | |
1241 | return Length;\r | |
1242 | }\r | |
1243 | \r | |
1244 | /**\r | |
1245 | Returns the size of a Null-terminated ASCII string in bytes, including the\r | |
1246 | Null terminator.\r | |
1247 | \r | |
1248 | This function returns the size, in bytes, of the Null-terminated ASCII string\r | |
1249 | specified by String.\r | |
1250 | \r | |
1251 | If String is NULL, then ASSERT().\r | |
1252 | If PcdMaximumAsciiStringLength is not zero and String contains more than\r | |
1253 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1254 | then ASSERT().\r | |
1255 | \r | |
1256 | @param String Pointer to a Null-terminated ASCII string.\r | |
1257 | \r | |
1258 | @return The size of String.\r | |
1259 | \r | |
1260 | **/\r | |
1261 | UINTN\r | |
1262 | EFIAPI\r | |
1263 | AsciiStrSize (\r | |
1264 | IN CONST CHAR8 *String\r | |
1265 | )\r | |
1266 | {\r | |
1267 | return (AsciiStrLen (String) + 1) * sizeof (*String);\r | |
1268 | }\r | |
1269 | \r | |
1270 | /**\r | |
1271 | Compares two Null-terminated ASCII strings, and returns the difference\r | |
1272 | between the first mismatched ASCII characters.\r | |
1273 | \r | |
1274 | This function compares the Null-terminated ASCII string FirstString to the\r | |
1275 | Null-terminated ASCII string SecondString. If FirstString is identical to\r | |
1276 | SecondString, then 0 is returned. Otherwise, the value returned is the first\r | |
1277 | mismatched ASCII character in SecondString subtracted from the first\r | |
1278 | mismatched ASCII character in FirstString.\r | |
1279 | \r | |
1280 | If FirstString is NULL, then ASSERT().\r | |
1281 | If SecondString is NULL, then ASSERT().\r | |
1282 | If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r | |
1283 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1284 | then ASSERT().\r | |
1285 | If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r | |
1286 | than PcdMaximumAsciiStringLength ASCII characters, not including the\r | |
1287 | Null-terminator, then ASSERT().\r | |
1288 | \r | |
1289 | @param FirstString Pointer to a Null-terminated ASCII string.\r | |
1290 | @param SecondString Pointer to a Null-terminated ASCII string.\r | |
1291 | \r | |
1292 | @retval ==0 FirstString is identical to SecondString.\r | |
1293 | @retval !=0 FirstString is not identical to SecondString.\r | |
1294 | \r | |
1295 | **/\r | |
1296 | INTN\r | |
1297 | EFIAPI\r | |
1298 | AsciiStrCmp (\r | |
1299 | IN CONST CHAR8 *FirstString,\r | |
1300 | IN CONST CHAR8 *SecondString\r | |
1301 | )\r | |
1302 | {\r | |
1303 | //\r | |
1304 | // ASSERT both strings are less long than PcdMaximumAsciiStringLength\r | |
1305 | //\r | |
1306 | ASSERT (AsciiStrSize (FirstString));\r | |
1307 | ASSERT (AsciiStrSize (SecondString));\r | |
1308 | \r | |
1309 | while ((*FirstString != '\0') && (*FirstString == *SecondString)) {\r | |
1310 | FirstString++;\r | |
1311 | SecondString++;\r | |
1312 | }\r | |
1313 | \r | |
1314 | return *FirstString - *SecondString;\r | |
1315 | }\r | |
1316 | \r | |
1317 | /**\r | |
1318 | Converts a lowercase Ascii character to upper one.\r | |
1319 | \r | |
1320 | If Chr is lowercase Ascii character, then converts it to upper one.\r | |
1321 | \r | |
1322 | If Value >= 0xA0, then ASSERT().\r | |
1323 | If (Value & 0x0F) >= 0x0A, then ASSERT().\r | |
1324 | \r | |
1325 | @param Chr one Ascii character\r | |
1326 | \r | |
1327 | @return The uppercase value of Ascii character \r | |
1328 | \r | |
1329 | **/\r | |
1330 | CHAR8\r | |
1331 | EFIAPI\r | |
1332 | InternalBaseLibAsciiToUpper (\r | |
1333 | IN CHAR8 Chr\r | |
1334 | )\r | |
1335 | {\r | |
1336 | return (UINT8) ((Chr >= 'a' && Chr <= 'z') ? Chr - ('a' - 'A') : Chr);\r | |
1337 | }\r | |
1338 | \r | |
1339 | /**\r | |
1340 | Convert a ASCII character to numerical value.\r | |
1341 | \r | |
1342 | This internal function only deal with Unicode character\r | |
1343 | which maps to a valid hexadecimal ASII character, i.e.\r | |
1344 | '0' to '9', 'a' to 'f' or 'A' to 'F'. For other \r | |
1345 | ASCII character, the value returned does not make sense.\r | |
1346 | \r | |
1347 | @param Char The character to convert.\r | |
1348 | \r | |
1349 | @return The numerical value converted.\r | |
1350 | \r | |
1351 | **/\r | |
1352 | UINTN\r | |
1353 | EFIAPI\r | |
1354 | InternalAsciiHexCharToUintn (\r | |
1355 | IN CHAR8 Char\r | |
1356 | )\r | |
1357 | {\r | |
1358 | if (InternalIsDecimalDigitCharacter (Char)) {\r | |
1359 | return Char - '0';\r | |
1360 | }\r | |
1361 | \r | |
1362 | return (UINTN) (10 + InternalBaseLibAsciiToUpper (Char) - 'A');\r | |
1363 | }\r | |
1364 | \r | |
1365 | \r | |
1366 | /**\r | |
1367 | Performs a case insensitive comparison of two Null-terminated ASCII strings,\r | |
1368 | and returns the difference between the first mismatched ASCII characters.\r | |
1369 | \r | |
1370 | This function performs a case insensitive comparison of the Null-terminated\r | |
1371 | ASCII string FirstString to the Null-terminated ASCII string SecondString. If\r | |
1372 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r | |
1373 | value returned is the first mismatched lower case ASCII character in\r | |
1374 | SecondString subtracted from the first mismatched lower case ASCII character\r | |
1375 | in FirstString.\r | |
1376 | \r | |
1377 | If FirstString is NULL, then ASSERT().\r | |
1378 | If SecondString is NULL, then ASSERT().\r | |
1379 | If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r | |
1380 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1381 | then ASSERT().\r | |
1382 | If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r | |
1383 | than PcdMaximumAsciiStringLength ASCII characters, not including the\r | |
1384 | Null-terminator, then ASSERT().\r | |
1385 | \r | |
1386 | @param FirstString Pointer to a Null-terminated ASCII string.\r | |
1387 | @param SecondString Pointer to a Null-terminated ASCII string.\r | |
1388 | \r | |
1389 | @retval ==0 FirstString is identical to SecondString using case insensitive\r | |
1390 | comparisons.\r | |
1391 | @retval !=0 FirstString is not identical to SecondString using case\r | |
1392 | insensitive comparisons.\r | |
1393 | \r | |
1394 | **/\r | |
1395 | INTN\r | |
1396 | EFIAPI\r | |
1397 | AsciiStriCmp (\r | |
1398 | IN CONST CHAR8 *FirstString,\r | |
1399 | IN CONST CHAR8 *SecondString\r | |
1400 | )\r | |
1401 | {\r | |
1402 | CHAR8 UpperFirstString;\r | |
1403 | CHAR8 UpperSecondString;\r | |
1404 | \r | |
1405 | //\r | |
1406 | // ASSERT both strings are less long than PcdMaximumAsciiStringLength\r | |
1407 | //\r | |
1408 | ASSERT (AsciiStrSize (FirstString));\r | |
1409 | ASSERT (AsciiStrSize (SecondString));\r | |
1410 | \r | |
1411 | UpperFirstString = InternalBaseLibAsciiToUpper (*FirstString);\r | |
1412 | UpperSecondString = InternalBaseLibAsciiToUpper (*SecondString);\r | |
1413 | while ((*FirstString != '\0') && (UpperFirstString == UpperSecondString)) {\r | |
1414 | FirstString++;\r | |
1415 | SecondString++;\r | |
1416 | UpperFirstString = InternalBaseLibAsciiToUpper (*FirstString);\r | |
1417 | UpperSecondString = InternalBaseLibAsciiToUpper (*SecondString);\r | |
1418 | }\r | |
1419 | \r | |
1420 | return UpperFirstString - UpperSecondString;\r | |
1421 | }\r | |
1422 | \r | |
1423 | /**\r | |
1424 | Compares two Null-terminated ASCII strings with maximum lengths, and returns\r | |
1425 | the difference between the first mismatched ASCII characters.\r | |
1426 | \r | |
1427 | This function compares the Null-terminated ASCII string FirstString to the\r | |
1428 | Null-terminated ASCII string SecondString. At most, Length ASCII characters\r | |
1429 | will be compared. If Length is 0, then 0 is returned. If FirstString is\r | |
1430 | identical to SecondString, then 0 is returned. Otherwise, the value returned\r | |
1431 | is the first mismatched ASCII character in SecondString subtracted from the\r | |
1432 | first mismatched ASCII character in FirstString.\r | |
1433 | \r | |
1434 | If Length > 0 and FirstString is NULL, then ASSERT().\r | |
1435 | If Length > 0 and SecondString is NULL, then ASSERT().\r | |
1436 | If PcdMaximumAsciiStringLength is not zero, and Length is greater than \r | |
1437 | PcdMaximumAsciiStringLength, then ASSERT().\r | |
1438 | If PcdMaximumAsciiStringLength is not zero, and FirstString contains more than\r | |
1439 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1440 | then ASSERT().\r | |
1441 | If PcdMaximumAsciiStringLength is not zero, and SecondString contains more than\r | |
1442 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1443 | then ASSERT().\r | |
1444 | \r | |
1445 | @param FirstString Pointer to a Null-terminated ASCII string.\r | |
1446 | @param SecondString Pointer to a Null-terminated ASCII string.\r | |
1447 | @param Length Maximum number of ASCII characters for compare.\r | |
1448 | \r | |
1449 | @retval ==0 FirstString is identical to SecondString.\r | |
1450 | @retval !=0 FirstString is not identical to SecondString.\r | |
1451 | \r | |
1452 | **/\r | |
1453 | INTN\r | |
1454 | EFIAPI\r | |
1455 | AsciiStrnCmp (\r | |
1456 | IN CONST CHAR8 *FirstString,\r | |
1457 | IN CONST CHAR8 *SecondString,\r | |
1458 | IN UINTN Length\r | |
1459 | )\r | |
1460 | {\r | |
1461 | if (Length == 0) {\r | |
1462 | return 0;\r | |
1463 | }\r | |
1464 | \r | |
1465 | //\r | |
1466 | // ASSERT both strings are less long than PcdMaximumAsciiStringLength\r | |
1467 | //\r | |
1468 | ASSERT (AsciiStrSize (FirstString));\r | |
1469 | ASSERT (AsciiStrSize (SecondString));\r | |
1470 | \r | |
1471 | if (PcdGet32 (PcdMaximumAsciiStringLength) != 0) {\r | |
1472 | ASSERT (Length <= PcdGet32 (PcdMaximumAsciiStringLength));\r | |
1473 | }\r | |
1474 | \r | |
1475 | while ((*FirstString != '\0') &&\r | |
1476 | (*FirstString == *SecondString) &&\r | |
1477 | (Length > 1)) {\r | |
1478 | FirstString++;\r | |
1479 | SecondString++;\r | |
1480 | Length--;\r | |
1481 | }\r | |
1482 | return *FirstString - *SecondString;\r | |
1483 | }\r | |
1484 | \r | |
1485 | /**\r | |
1486 | Concatenates one Null-terminated ASCII string to another Null-terminated\r | |
1487 | ASCII string, and returns the concatenated ASCII string.\r | |
1488 | \r | |
1489 | This function concatenates two Null-terminated ASCII strings. The contents of\r | |
1490 | Null-terminated ASCII string Source are concatenated to the end of Null-\r | |
1491 | terminated ASCII string Destination. The Null-terminated concatenated ASCII\r | |
1492 | String is returned.\r | |
1493 | \r | |
1494 | If Destination is NULL, then ASSERT().\r | |
1495 | If Source is NULL, then ASSERT().\r | |
1496 | If PcdMaximumAsciiStringLength is not zero and Destination contains more than\r | |
1497 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1498 | then ASSERT().\r | |
1499 | If PcdMaximumAsciiStringLength is not zero and Source contains more than\r | |
1500 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1501 | then ASSERT().\r | |
1502 | If PcdMaximumAsciiStringLength is not zero and concatenating Destination and\r | |
1503 | Source results in a ASCII string with more than PcdMaximumAsciiStringLength\r | |
1504 | ASCII characters, then ASSERT().\r | |
1505 | \r | |
1506 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1507 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1508 | \r | |
1509 | @return Destination\r | |
1510 | \r | |
1511 | **/\r | |
1512 | CHAR8 *\r | |
1513 | EFIAPI\r | |
1514 | AsciiStrCat (\r | |
1515 | IN OUT CHAR8 *Destination,\r | |
1516 | IN CONST CHAR8 *Source\r | |
1517 | )\r | |
1518 | {\r | |
1519 | AsciiStrCpy (Destination + AsciiStrLen (Destination), Source);\r | |
1520 | \r | |
1521 | //\r | |
1522 | // Size of the resulting string should never be zero.\r | |
1523 | // PcdMaximumUnicodeStringLength is tested inside StrLen().\r | |
1524 | //\r | |
1525 | ASSERT (AsciiStrSize (Destination) != 0);\r | |
1526 | return Destination;\r | |
1527 | }\r | |
1528 | \r | |
1529 | /**\r | |
1530 | Concatenates up to a specified length one Null-terminated ASCII string to \r | |
1531 | the end of another Null-terminated ASCII string, and returns the \r | |
1532 | concatenated ASCII string.\r | |
1533 | \r | |
1534 | This function concatenates two Null-terminated ASCII strings. The contents\r | |
1535 | of Null-terminated ASCII string Source are concatenated to the end of Null-\r | |
1536 | terminated ASCII string Destination, and Destination is returned. At most,\r | |
1537 | Length ASCII characters are concatenated from Source to the end of\r | |
1538 | Destination, and Destination is always Null-terminated. If Length is 0, then\r | |
1539 | Destination is returned unmodified. If Source and Destination overlap, then\r | |
1540 | the results are undefined.\r | |
1541 | \r | |
1542 | If Length > 0 and Destination is NULL, then ASSERT().\r | |
1543 | If Length > 0 and Source is NULL, then ASSERT().\r | |
1544 | If Source and Destination overlap, then ASSERT().\r | |
1545 | If PcdMaximumAsciiStringLength is not zero, and Length is greater than\r | |
1546 | PcdMaximumAsciiStringLength, then ASSERT().\r | |
1547 | If PcdMaximumAsciiStringLength is not zero, and Destination contains more than\r | |
1548 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1549 | then ASSERT().\r | |
1550 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r | |
1551 | PcdMaximumAsciiStringLength ASCII characters, not including the Null-terminator,\r | |
1552 | then ASSERT().\r | |
1553 | If PcdMaximumAsciiStringLength is not zero, and concatenating Destination and\r | |
1554 | Source results in a ASCII string with more than PcdMaximumAsciiStringLength\r | |
1555 | ASCII characters, not including the Null-terminator, then ASSERT().\r | |
1556 | \r | |
1557 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1558 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1559 | @param Length Maximum number of ASCII characters to concatenate from\r | |
1560 | Source.\r | |
1561 | \r | |
1562 | @return Destination\r | |
1563 | \r | |
1564 | **/\r | |
1565 | CHAR8 *\r | |
1566 | EFIAPI\r | |
1567 | AsciiStrnCat (\r | |
1568 | IN OUT CHAR8 *Destination,\r | |
1569 | IN CONST CHAR8 *Source,\r | |
1570 | IN UINTN Length\r | |
1571 | )\r | |
1572 | {\r | |
1573 | UINTN DestinationLen;\r | |
1574 | \r | |
1575 | DestinationLen = AsciiStrLen (Destination);\r | |
1576 | AsciiStrnCpy (Destination + DestinationLen, Source, Length);\r | |
1577 | Destination[DestinationLen + Length] = '\0';\r | |
1578 | \r | |
1579 | //\r | |
1580 | // Size of the resulting string should never be zero.\r | |
1581 | // PcdMaximumUnicodeStringLength is tested inside StrLen().\r | |
1582 | //\r | |
1583 | ASSERT (AsciiStrSize (Destination) != 0);\r | |
1584 | return Destination;\r | |
1585 | }\r | |
1586 | \r | |
1587 | /**\r | |
1588 | Returns the first occurrence of a Null-terminated ASCII sub-string\r | |
1589 | in a Null-terminated ASCII string.\r | |
1590 | \r | |
1591 | This function scans the contents of the ASCII string specified by String\r | |
1592 | and returns the first occurrence of SearchString. If SearchString is not\r | |
1593 | found in String, then NULL is returned. If the length of SearchString is zero,\r | |
1594 | then String is returned.\r | |
1595 | \r | |
1596 | If String is NULL, then ASSERT().\r | |
1597 | If SearchString is NULL, then ASSERT().\r | |
1598 | \r | |
1599 | If PcdMaximumAsciiStringLength is not zero, and SearchString or\r | |
1600 | String contains more than PcdMaximumAsciiStringLength Unicode characters\r | |
1601 | not including the Null-terminator, then ASSERT().\r | |
1602 | \r | |
1603 | @param String Pointer to a Null-terminated ASCII string.\r | |
1604 | @param SearchString Pointer to a Null-terminated ASCII string to search for.\r | |
1605 | \r | |
1606 | @retval NULL If the SearchString does not appear in String.\r | |
1607 | @retval others If there is a match return the first occurrence of SearchingString.\r | |
1608 | If the length of SearchString is zero,return String.\r | |
1609 | \r | |
1610 | **/\r | |
1611 | CHAR8 *\r | |
1612 | EFIAPI\r | |
1613 | AsciiStrStr (\r | |
1614 | IN CONST CHAR8 *String,\r | |
1615 | IN CONST CHAR8 *SearchString\r | |
1616 | )\r | |
1617 | {\r | |
1618 | CONST CHAR8 *FirstMatch;\r | |
1619 | CONST CHAR8 *SearchStringTmp;\r | |
1620 | \r | |
1621 | //\r | |
1622 | // ASSERT both strings are less long than PcdMaximumAsciiStringLength\r | |
1623 | //\r | |
1624 | ASSERT (AsciiStrSize (String) != 0);\r | |
1625 | ASSERT (AsciiStrSize (SearchString) != 0);\r | |
1626 | \r | |
1627 | if (*SearchString == '\0') {\r | |
1628 | return (CHAR8 *) String;\r | |
1629 | }\r | |
1630 | \r | |
1631 | while (*String != '\0') {\r | |
1632 | SearchStringTmp = SearchString;\r | |
1633 | FirstMatch = String;\r | |
1634 | \r | |
1635 | while ((*String == *SearchStringTmp) \r | |
1636 | && (*String != '\0')) {\r | |
1637 | String++;\r | |
1638 | SearchStringTmp++;\r | |
1639 | } \r | |
1640 | \r | |
1641 | if (*SearchStringTmp == '\0') {\r | |
1642 | return (CHAR8 *) FirstMatch;\r | |
1643 | }\r | |
1644 | \r | |
1645 | if (*String == '\0') {\r | |
1646 | return NULL;\r | |
1647 | }\r | |
1648 | \r | |
1649 | String = FirstMatch + 1;\r | |
1650 | }\r | |
1651 | \r | |
1652 | return NULL;\r | |
1653 | }\r | |
1654 | \r | |
1655 | /**\r | |
1656 | Convert a Null-terminated ASCII decimal string to a value of type\r | |
1657 | UINTN.\r | |
1658 | \r | |
1659 | This function returns a value of type UINTN by interpreting the contents\r | |
1660 | of the ASCII string String as a decimal number. The format of the input\r | |
1661 | ASCII string String is:\r | |
1662 | \r | |
1663 | [spaces] [decimal digits].\r | |
1664 | \r | |
1665 | The valid decimal digit character is in the range [0-9]. The function will\r | |
1666 | ignore the pad space, which includes spaces or tab characters, before the digits.\r | |
1667 | The running zero in the beginning of [decimal digits] will be ignored. Then, the\r | |
1668 | function stops at the first character that is a not a valid decimal character or\r | |
1669 | Null-terminator, whichever on comes first.\r | |
1670 | \r | |
1671 | If String has only pad spaces, then 0 is returned.\r | |
1672 | If String has no pad spaces or valid decimal digits, then 0 is returned.\r | |
1673 | If the number represented by String overflows according to the range defined by\r | |
1674 | UINTN, then ASSERT().\r | |
1675 | If String is NULL, then ASSERT().\r | |
1676 | If PcdMaximumAsciiStringLength is not zero, and String contains more than\r | |
1677 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1678 | then ASSERT().\r | |
1679 | \r | |
1680 | @param String Pointer to a Null-terminated ASCII string.\r | |
1681 | \r | |
1682 | @retval Value translated from String.\r | |
1683 | \r | |
1684 | **/\r | |
1685 | UINTN\r | |
1686 | EFIAPI\r | |
1687 | AsciiStrDecimalToUintn (\r | |
1688 | IN CONST CHAR8 *String\r | |
1689 | )\r | |
1690 | {\r | |
1691 | UINTN Result;\r | |
1692 | \r | |
1693 | //\r | |
1694 | // ASSERT Strings is less long than PcdMaximumAsciiStringLength\r | |
1695 | //\r | |
1696 | ASSERT (AsciiStrSize (String) != 0);\r | |
1697 | \r | |
1698 | //\r | |
1699 | // Ignore the pad spaces (space or tab)\r | |
1700 | //\r | |
1701 | while ((*String == ' ') || (*String == '\t' )) {\r | |
1702 | String++;\r | |
1703 | }\r | |
1704 | \r | |
1705 | //\r | |
1706 | // Ignore leading Zeros after the spaces\r | |
1707 | //\r | |
1708 | while (*String == '0') {\r | |
1709 | String++;\r | |
1710 | }\r | |
1711 | \r | |
1712 | Result = 0;\r | |
1713 | \r | |
1714 | while (InternalAsciiIsDecimalDigitCharacter (*String)) {\r | |
1715 | //\r | |
1716 | // If the number represented by String overflows according \r | |
1717 | // to the range defined by UINTN, then ASSERT().\r | |
1718 | //\r | |
1719 | ASSERT ((Result < QUOTIENT_MAX_UINTN_DIVIDED_BY_10) ||\r | |
1720 | ((Result == QUOTIENT_MAX_UINTN_DIVIDED_BY_10) && \r | |
1721 | (*String - '0') <= REMAINDER_MAX_UINTN_DIVIDED_BY_10)\r | |
1722 | );\r | |
1723 | \r | |
1724 | Result = Result * 10 + (*String - '0');\r | |
1725 | String++;\r | |
1726 | }\r | |
1727 | \r | |
1728 | return Result;\r | |
1729 | }\r | |
1730 | \r | |
1731 | \r | |
1732 | /**\r | |
1733 | Convert a Null-terminated ASCII decimal string to a value of type\r | |
1734 | UINT64.\r | |
1735 | \r | |
1736 | This function returns a value of type UINT64 by interpreting the contents\r | |
1737 | of the ASCII string String as a decimal number. The format of the input\r | |
1738 | ASCII string String is:\r | |
1739 | \r | |
1740 | [spaces] [decimal digits].\r | |
1741 | \r | |
1742 | The valid decimal digit character is in the range [0-9]. The function will\r | |
1743 | ignore the pad space, which includes spaces or tab characters, before the digits.\r | |
1744 | The running zero in the beginning of [decimal digits] will be ignored. Then, the\r | |
1745 | function stops at the first character that is a not a valid decimal character or\r | |
1746 | Null-terminator, whichever on comes first.\r | |
1747 | \r | |
1748 | If String has only pad spaces, then 0 is returned.\r | |
1749 | If String has no pad spaces or valid decimal digits, then 0 is returned.\r | |
1750 | If the number represented by String overflows according to the range defined by\r | |
1751 | UINT64, then ASSERT().\r | |
1752 | If String is NULL, then ASSERT().\r | |
1753 | If PcdMaximumAsciiStringLength is not zero, and String contains more than\r | |
1754 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1755 | then ASSERT().\r | |
1756 | \r | |
1757 | @param String Pointer to a Null-terminated ASCII string.\r | |
1758 | \r | |
1759 | @retval Value translated from String.\r | |
1760 | \r | |
1761 | **/\r | |
1762 | UINT64\r | |
1763 | EFIAPI\r | |
1764 | AsciiStrDecimalToUint64 (\r | |
1765 | IN CONST CHAR8 *String\r | |
1766 | )\r | |
1767 | {\r | |
1768 | UINT64 Result;\r | |
1769 | \r | |
1770 | //\r | |
1771 | // ASSERT Strings is less long than PcdMaximumAsciiStringLength\r | |
1772 | //\r | |
1773 | ASSERT (AsciiStrSize (String) != 0);\r | |
1774 | \r | |
1775 | //\r | |
1776 | // Ignore the pad spaces (space or tab)\r | |
1777 | //\r | |
1778 | while ((*String == ' ') || (*String == '\t' )) {\r | |
1779 | String++;\r | |
1780 | }\r | |
1781 | \r | |
1782 | //\r | |
1783 | // Ignore leading Zeros after the spaces\r | |
1784 | //\r | |
1785 | while (*String == '0') {\r | |
1786 | String++;\r | |
1787 | }\r | |
1788 | \r | |
1789 | Result = 0;\r | |
1790 | \r | |
1791 | while (InternalAsciiIsDecimalDigitCharacter (*String)) {\r | |
1792 | //\r | |
1793 | // If the number represented by String overflows according \r | |
1794 | // to the range defined by UINTN, then ASSERT().\r | |
1795 | //\r | |
1796 | ASSERT ((Result < QUOTIENT_MAX_UINT64_DIVIDED_BY_10) || \r | |
1797 | ((Result == QUOTIENT_MAX_UINT64_DIVIDED_BY_10) && \r | |
1798 | (*String - '0') <= REMAINDER_MAX_UINT64_DIVIDED_BY_10)\r | |
1799 | );\r | |
1800 | \r | |
1801 | Result = MultU64x32 (Result, 10) + (*String - '0');\r | |
1802 | String++;\r | |
1803 | }\r | |
1804 | \r | |
1805 | return Result;\r | |
1806 | }\r | |
1807 | \r | |
1808 | /**\r | |
1809 | Convert a Null-terminated ASCII hexadecimal string to a value of type UINTN.\r | |
1810 | \r | |
1811 | This function returns a value of type UINTN by interpreting the contents of\r | |
1812 | the ASCII string String as a hexadecimal number. The format of the input ASCII\r | |
1813 | string String is:\r | |
1814 | \r | |
1815 | [spaces][zeros][x][hexadecimal digits].\r | |
1816 | \r | |
1817 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r | |
1818 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x"\r | |
1819 | appears in the input string, it must be prefixed with at least one 0. The function\r | |
1820 | will ignore the pad space, which includes spaces or tab characters, before [zeros],\r | |
1821 | [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits]\r | |
1822 | will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal\r | |
1823 | digit. Then, the function stops at the first character that is a not a valid\r | |
1824 | hexadecimal character or Null-terminator, whichever on comes first.\r | |
1825 | \r | |
1826 | If String has only pad spaces, then 0 is returned.\r | |
1827 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r | |
1828 | 0 is returned.\r | |
1829 | \r | |
1830 | If the number represented by String overflows according to the range defined by UINTN,\r | |
1831 | then ASSERT().\r | |
1832 | If String is NULL, then ASSERT().\r | |
1833 | If PcdMaximumAsciiStringLength is not zero,\r | |
1834 | and String contains more than PcdMaximumAsciiStringLength ASCII characters not including\r | |
1835 | the Null-terminator, then ASSERT().\r | |
1836 | \r | |
1837 | @param String Pointer to a Null-terminated ASCII string.\r | |
1838 | \r | |
1839 | @retval Value translated from String.\r | |
1840 | \r | |
1841 | **/\r | |
1842 | UINTN\r | |
1843 | EFIAPI\r | |
1844 | AsciiStrHexToUintn (\r | |
1845 | IN CONST CHAR8 *String\r | |
1846 | )\r | |
1847 | {\r | |
1848 | UINTN Result;\r | |
1849 | \r | |
1850 | //\r | |
1851 | // ASSERT Strings is less long than PcdMaximumAsciiStringLength\r | |
1852 | //\r | |
1853 | ASSERT (AsciiStrSize (String) != 0);\r | |
1854 | \r | |
1855 | //\r | |
1856 | // Ignore the pad spaces (space or tab) \r | |
1857 | //\r | |
1858 | while ((*String == ' ') || (*String == '\t' )) {\r | |
1859 | String++;\r | |
1860 | }\r | |
1861 | \r | |
1862 | //\r | |
1863 | // Ignore leading Zeros after the spaces\r | |
1864 | //\r | |
1865 | while (*String == '0') {\r | |
1866 | String++;\r | |
1867 | }\r | |
1868 | \r | |
1869 | if (InternalBaseLibAsciiToUpper (*String) == 'X') {\r | |
1870 | ASSERT (*(String - 1) == '0');\r | |
1871 | if (*(String - 1) != '0') {\r | |
1872 | return 0;\r | |
1873 | }\r | |
1874 | //\r | |
1875 | // Skip the 'X'\r | |
1876 | //\r | |
1877 | String++;\r | |
1878 | }\r | |
1879 | \r | |
1880 | Result = 0;\r | |
1881 | \r | |
1882 | while (InternalAsciiIsHexaDecimalDigitCharacter (*String)) {\r | |
1883 | //\r | |
1884 | // If the Hex Number represented by String overflows according \r | |
1885 | // to the range defined by UINTN, then ASSERT().\r | |
1886 | //\r | |
1887 | ASSERT ((Result < QUOTIENT_MAX_UINTN_DIVIDED_BY_16) ||\r | |
1888 | ((Result == QUOTIENT_MAX_UINTN_DIVIDED_BY_16) && \r | |
1889 | (InternalAsciiHexCharToUintn (*String) <= REMAINDER_MAX_UINTN_DIVIDED_BY_16))\r | |
1890 | );\r | |
1891 | \r | |
1892 | Result = (Result << 4) + InternalAsciiHexCharToUintn (*String);\r | |
1893 | String++;\r | |
1894 | }\r | |
1895 | \r | |
1896 | return Result;\r | |
1897 | }\r | |
1898 | \r | |
1899 | \r | |
1900 | /**\r | |
1901 | Convert a Null-terminated ASCII hexadecimal string to a value of type UINT64.\r | |
1902 | \r | |
1903 | This function returns a value of type UINT64 by interpreting the contents of\r | |
1904 | the ASCII string String as a hexadecimal number. The format of the input ASCII\r | |
1905 | string String is:\r | |
1906 | \r | |
1907 | [spaces][zeros][x][hexadecimal digits].\r | |
1908 | \r | |
1909 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F].\r | |
1910 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x"\r | |
1911 | appears in the input string, it must be prefixed with at least one 0. The function\r | |
1912 | will ignore the pad space, which includes spaces or tab characters, before [zeros],\r | |
1913 | [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits]\r | |
1914 | will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal\r | |
1915 | digit. Then, the function stops at the first character that is a not a valid\r | |
1916 | hexadecimal character or Null-terminator, whichever on comes first.\r | |
1917 | \r | |
1918 | If String has only pad spaces, then 0 is returned.\r | |
1919 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r | |
1920 | 0 is returned.\r | |
1921 | \r | |
1922 | If the number represented by String overflows according to the range defined by UINT64,\r | |
1923 | then ASSERT().\r | |
1924 | If String is NULL, then ASSERT().\r | |
1925 | If PcdMaximumAsciiStringLength is not zero,\r | |
1926 | and String contains more than PcdMaximumAsciiStringLength ASCII characters not including\r | |
1927 | the Null-terminator, then ASSERT().\r | |
1928 | \r | |
1929 | @param String Pointer to a Null-terminated ASCII string.\r | |
1930 | \r | |
1931 | @retval Value translated from String.\r | |
1932 | \r | |
1933 | **/\r | |
1934 | UINT64\r | |
1935 | EFIAPI\r | |
1936 | AsciiStrHexToUint64 (\r | |
1937 | IN CONST CHAR8 *String\r | |
1938 | )\r | |
1939 | {\r | |
1940 | UINT64 Result;\r | |
1941 | \r | |
1942 | //\r | |
1943 | // ASSERT Strings is less long than PcdMaximumAsciiStringLength\r | |
1944 | //\r | |
1945 | ASSERT (AsciiStrSize (String) != 0);\r | |
1946 | \r | |
1947 | //\r | |
1948 | // Ignore the pad spaces (space or tab) and leading Zeros\r | |
1949 | //\r | |
1950 | //\r | |
1951 | // Ignore the pad spaces (space or tab) \r | |
1952 | //\r | |
1953 | while ((*String == ' ') || (*String == '\t' )) {\r | |
1954 | String++;\r | |
1955 | }\r | |
1956 | \r | |
1957 | //\r | |
1958 | // Ignore leading Zeros after the spaces\r | |
1959 | //\r | |
1960 | while (*String == '0') {\r | |
1961 | String++;\r | |
1962 | }\r | |
1963 | \r | |
1964 | if (InternalBaseLibAsciiToUpper (*String) == 'X') {\r | |
1965 | ASSERT (*(String - 1) == '0');\r | |
1966 | if (*(String - 1) != '0') {\r | |
1967 | return 0;\r | |
1968 | }\r | |
1969 | //\r | |
1970 | // Skip the 'X'\r | |
1971 | //\r | |
1972 | String++;\r | |
1973 | }\r | |
1974 | \r | |
1975 | Result = 0;\r | |
1976 | \r | |
1977 | while (InternalAsciiIsHexaDecimalDigitCharacter (*String)) {\r | |
1978 | //\r | |
1979 | // If the Hex Number represented by String overflows according \r | |
1980 | // to the range defined by UINTN, then ASSERT().\r | |
1981 | //\r | |
1982 | ASSERT ((Result < QUOTIENT_MAX_UINT64_DIVIDED_BY_16) ||\r | |
1983 | ((Result == QUOTIENT_MAX_UINT64_DIVIDED_BY_16) && \r | |
1984 | (InternalAsciiHexCharToUintn (*String) <= REMAINDER_MAX_UINT64_DIVIDED_BY_16))\r | |
1985 | );\r | |
1986 | \r | |
1987 | Result = LShiftU64 (Result, 4);\r | |
1988 | Result = Result + InternalAsciiHexCharToUintn (*String);\r | |
1989 | String++;\r | |
1990 | }\r | |
1991 | \r | |
1992 | return Result;\r | |
1993 | }\r | |
1994 | \r | |
1995 | \r | |
1996 | /**\r | |
1997 | Convert one Null-terminated ASCII string to a Null-terminated\r | |
1998 | Unicode string and returns the Unicode string.\r | |
1999 | \r | |
2000 | This function converts the contents of the ASCII string Source to the Unicode\r | |
2001 | string Destination, and returns Destination. The function terminates the\r | |
2002 | Unicode string Destination by appending a Null-terminator character at the end.\r | |
2003 | The caller is responsible to make sure Destination points to a buffer with size\r | |
2004 | equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes.\r | |
2005 | \r | |
2006 | If Destination is NULL, then ASSERT().\r | |
2007 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
2008 | If Source is NULL, then ASSERT().\r | |
2009 | If Source and Destination overlap, then ASSERT().\r | |
2010 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r | |
2011 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
2012 | then ASSERT().\r | |
2013 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r | |
2014 | PcdMaximumUnicodeStringLength ASCII characters not including the\r | |
2015 | Null-terminator, then ASSERT().\r | |
2016 | \r | |
2017 | @param Source Pointer to a Null-terminated ASCII string.\r | |
2018 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
2019 | \r | |
2020 | @return Destination.\r | |
2021 | \r | |
2022 | **/\r | |
2023 | CHAR16 *\r | |
2024 | EFIAPI\r | |
2025 | AsciiStrToUnicodeStr (\r | |
2026 | IN CONST CHAR8 *Source,\r | |
2027 | OUT CHAR16 *Destination\r | |
2028 | )\r | |
2029 | {\r | |
2030 | CHAR16 *ReturnValue;\r | |
2031 | \r | |
2032 | ASSERT (Destination != NULL);\r | |
2033 | \r | |
2034 | //\r | |
2035 | // ASSERT Source is less long than PcdMaximumAsciiStringLength\r | |
2036 | //\r | |
2037 | ASSERT (AsciiStrSize (Source) != 0);\r | |
2038 | \r | |
2039 | //\r | |
2040 | // Source and Destination should not overlap\r | |
2041 | //\r | |
2042 | ASSERT ((UINTN) ((CHAR8 *) Destination - Source) > AsciiStrLen (Source));\r | |
2043 | ASSERT ((UINTN) (Source - (CHAR8 *) Destination) > (AsciiStrLen (Source) * sizeof (CHAR16)));\r | |
2044 | \r | |
2045 | \r | |
2046 | ReturnValue = Destination;\r | |
2047 | while (*Source != '\0') {\r | |
2048 | *(Destination++) = (CHAR16) *(Source++);\r | |
2049 | }\r | |
2050 | //\r | |
2051 | // End the Destination with a NULL.\r | |
2052 | //\r | |
2053 | *Destination = '\0';\r | |
2054 | \r | |
2055 | //\r | |
2056 | // ASSERT Original Destination is less long than PcdMaximumUnicodeStringLength\r | |
2057 | //\r | |
2058 | ASSERT (StrSize (ReturnValue) != 0);\r | |
2059 | \r | |
2060 | return ReturnValue;\r | |
2061 | }\r | |
2062 | \r | |
2063 | /**\r | |
2064 | Converts an 8-bit value to an 8-bit BCD value.\r | |
2065 | \r | |
2066 | Converts the 8-bit value specified by Value to BCD. The BCD value is\r | |
2067 | returned.\r | |
2068 | \r | |
2069 | If Value >= 100, then ASSERT().\r | |
2070 | \r | |
2071 | @param Value The 8-bit value to convert to BCD. Range 0..99.\r | |
2072 | \r | |
2073 | @return The BCD value.\r | |
2074 | \r | |
2075 | **/\r | |
2076 | UINT8\r | |
2077 | EFIAPI\r | |
2078 | DecimalToBcd8 (\r | |
2079 | IN UINT8 Value\r | |
2080 | )\r | |
2081 | {\r | |
2082 | ASSERT (Value < 100);\r | |
2083 | return (UINT8) (((Value / 10) << 4) | (Value % 10));\r | |
2084 | }\r | |
2085 | \r | |
2086 | /**\r | |
2087 | Converts an 8-bit BCD value to an 8-bit value.\r | |
2088 | \r | |
2089 | Converts the 8-bit BCD value specified by Value to an 8-bit value. The 8-bit\r | |
2090 | value is returned.\r | |
2091 | \r | |
2092 | If Value >= 0xA0, then ASSERT().\r | |
2093 | If (Value & 0x0F) >= 0x0A, then ASSERT().\r | |
2094 | \r | |
2095 | @param Value The 8-bit BCD value to convert to an 8-bit value.\r | |
2096 | \r | |
2097 | @return The 8-bit value is returned.\r | |
2098 | \r | |
2099 | **/\r | |
2100 | UINT8\r | |
2101 | EFIAPI\r | |
2102 | BcdToDecimal8 (\r | |
2103 | IN UINT8 Value\r | |
2104 | )\r | |
2105 | {\r | |
2106 | ASSERT (Value < 0xa0);\r | |
2107 | ASSERT ((Value & 0xf) < 0xa);\r | |
2108 | return (UINT8) ((Value >> 4) * 10 + (Value & 0xf));\r | |
2109 | }\r |