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e1f414b6 | 1 | /** @file\r |
2 | Unicode and ASCII string primatives.\r | |
3 | \r | |
24dcb5e5 | 4 | Copyright (c) 2006 - 2008, Intel Corporation<BR>\r |
e1f414b6 | 5 | All rights reserved. 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 | |
e1f414b6 | 13 | **/\r |
14 | \r | |
e1f414b6 | 15 | #include "BaseLibInternals.h"\r |
16 | \r | |
24dcb5e5 | 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 | |
e1f414b6 | 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 | |
24dcb5e5 | 49 | @return Destination pointing to the copied string.\r |
e1f414b6 | 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 | |
24dcb5e5 | 65 | ASSERT (((UINTN) Destination & BIT0) == 0);\r |
e1f414b6 | 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 | |
42eedea9 | 74 | while (*Source != 0) {\r |
e1f414b6 | 75 | *(Destination++) = *(Source++);\r |
76 | }\r | |
77 | *Destination = 0;\r | |
78 | return ReturnValue;\r | |
79 | }\r | |
80 | \r | |
81 | /**\r | |
82 | Copies one Null-terminated Unicode string with a maximum length to another\r | |
83 | Null-terminated Unicode string with a maximum length and returns the new\r | |
84 | Unicode string.\r | |
85 | \r | |
86 | This function copies the contents of the Unicode string Source to the Unicode\r | |
87 | string Destination, and returns Destination. At most, Length Unicode\r | |
88 | characters are copied from Source to Destination. If Length is 0, then\r | |
89 | Destination is returned unmodified. If Length is greater that the number of\r | |
90 | Unicode characters in Source, then Destination is padded with Null Unicode\r | |
91 | characters. If Source and Destination overlap, then the results are\r | |
92 | undefined.\r | |
93 | \r | |
94 | If Length > 0 and Destination is NULL, then ASSERT().\r | |
95 | If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
96 | If Length > 0 and Source is NULL, then ASSERT().\r | |
97 | If Length > 0 and Source is not aligned on a 16-bit bounadry, then ASSERT().\r | |
98 | If Source and Destination overlap, then ASSERT().\r | |
99 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r | |
100 | PcdMaximumUnicodeStringLength Unicode characters not including the \r | |
101 | Null-terminator, then ASSERT().\r | |
102 | \r | |
103 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
104 | @param Source Pointer to a Null-terminated Unicode string.\r | |
105 | @param Length Maximum number of Unicode characters to copy.\r | |
106 | \r | |
24dcb5e5 | 107 | @return Destination pointing to the copied string.\r |
e1f414b6 | 108 | \r |
109 | **/\r | |
110 | CHAR16 *\r | |
111 | EFIAPI\r | |
112 | StrnCpy (\r | |
113 | OUT CHAR16 *Destination,\r | |
114 | IN CONST CHAR16 *Source,\r | |
115 | IN UINTN Length\r | |
116 | )\r | |
117 | {\r | |
118 | CHAR16 *ReturnValue;\r | |
119 | \r | |
120 | if (Length == 0) {\r | |
121 | return Destination;\r | |
122 | }\r | |
123 | \r | |
124 | //\r | |
125 | // Destination cannot be NULL if Length is not zero\r | |
126 | //\r | |
127 | ASSERT (Destination != NULL);\r | |
24dcb5e5 | 128 | ASSERT (((UINTN) Destination & BIT0) == 0);\r |
e1f414b6 | 129 | \r |
130 | //\r | |
131 | // Destination and source cannot overlap\r | |
e1f414b6 | 132 | //\r |
133 | ASSERT ((UINTN)(Destination - Source) > StrLen (Source));\r | |
134 | ASSERT ((UINTN)(Source - Destination) >= Length);\r | |
135 | \r | |
136 | ReturnValue = Destination;\r | |
137 | \r | |
138 | while ((*Source != L'\0') && (Length > 0)) {\r | |
139 | *(Destination++) = *(Source++);\r | |
140 | Length--;\r | |
141 | }\r | |
142 | \r | |
143 | ZeroMem (Destination, Length * sizeof (*Destination));\r | |
144 | return ReturnValue;\r | |
145 | }\r | |
146 | \r | |
147 | /**\r | |
148 | Returns the length of a Null-terminated Unicode string.\r | |
149 | \r | |
150 | This function returns the number of Unicode characters in the Null-terminated\r | |
151 | Unicode string specified by String.\r | |
152 | \r | |
153 | If String is NULL, then ASSERT().\r | |
154 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
155 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r | |
156 | PcdMaximumUnicodeStringLength Unicode characters not including the \r | |
157 | Null-terminator, then ASSERT().\r | |
158 | \r | |
159 | @param String Pointer to a Null-terminated Unicode string.\r | |
160 | \r | |
161 | @return The length of String.\r | |
162 | \r | |
163 | **/\r | |
164 | UINTN\r | |
165 | EFIAPI\r | |
166 | StrLen (\r | |
167 | IN CONST CHAR16 *String\r | |
168 | )\r | |
169 | {\r | |
170 | UINTN Length;\r | |
171 | \r | |
172 | ASSERT (String != NULL);\r | |
24dcb5e5 | 173 | ASSERT (((UINTN) String & BIT0) == 0);\r |
e1f414b6 | 174 | \r |
175 | for (Length = 0; *String != L'\0'; String++, Length++) {\r | |
176 | //\r | |
177 | // If PcdMaximumUnicodeStringLength is not zero,\r | |
178 | // length should not more than PcdMaximumUnicodeStringLength\r | |
179 | //\r | |
180 | if (PcdGet32 (PcdMaximumUnicodeStringLength) != 0) {\r | |
181 | ASSERT (Length < PcdGet32 (PcdMaximumUnicodeStringLength));\r | |
182 | }\r | |
183 | }\r | |
184 | return Length;\r | |
185 | }\r | |
186 | \r | |
187 | /**\r | |
188 | Returns the size of a Null-terminated Unicode string in bytes, including the\r | |
189 | Null terminator.\r | |
190 | \r | |
191 | This function returns the size, in bytes, of the Null-terminated Unicode\r | |
192 | string specified by String.\r | |
193 | \r | |
194 | If String is NULL, then ASSERT().\r | |
195 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
196 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than\r | |
197 | PcdMaximumUnicodeStringLength Unicode characters not including the \r | |
198 | Null-terminator, then ASSERT().\r | |
199 | \r | |
200 | @param String Pointer to a Null-terminated Unicode string.\r | |
201 | \r | |
38bbd3d9 | 202 | @return The size in bytes of String.\r |
e1f414b6 | 203 | \r |
204 | **/\r | |
205 | UINTN\r | |
206 | EFIAPI\r | |
207 | StrSize (\r | |
208 | IN CONST CHAR16 *String\r | |
209 | )\r | |
210 | {\r | |
211 | return (StrLen (String) + 1) * sizeof (*String);\r | |
212 | }\r | |
213 | \r | |
214 | /**\r | |
215 | Compares two Null-terminated Unicode strings, and returns the difference\r | |
216 | between the first mismatched Unicode characters.\r | |
217 | \r | |
218 | This function compares the Null-terminated Unicode string FirstString to the\r | |
219 | Null-terminated Unicode string SecondString. If FirstString is identical to\r | |
220 | SecondString, then 0 is returned. Otherwise, the value returned is the first\r | |
221 | mismatched Unicode character in SecondString subtracted from the first\r | |
222 | mismatched Unicode character in FirstString.\r | |
223 | \r | |
224 | If FirstString is NULL, then ASSERT().\r | |
225 | If FirstString is not aligned on a 16-bit boundary, then ASSERT().\r | |
226 | If SecondString is NULL, then ASSERT().\r | |
227 | If SecondString is not aligned on a 16-bit boundary, then ASSERT().\r | |
228 | If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more\r | |
229 | than PcdMaximumUnicodeStringLength Unicode characters not including the \r | |
230 | Null-terminator, then ASSERT().\r | |
231 | If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more\r | |
232 | than PcdMaximumUnicodeStringLength Unicode characters not including the \r | |
233 | Null-terminator, then ASSERT().\r | |
234 | \r | |
235 | @param FirstString Pointer to a Null-terminated Unicode string.\r | |
236 | @param SecondString Pointer to a Null-terminated Unicode string.\r | |
237 | \r | |
1106ffe1 | 238 | @retval 0 FirstString is identical to SecondString.\r |
24dcb5e5 | 239 | @return The first mismatched Unicode character in SecondString subtracted\r |
240 | from the first mismatched Unicode character in FirstString.\r | |
e1f414b6 | 241 | \r |
242 | **/\r | |
243 | INTN\r | |
244 | EFIAPI\r | |
245 | StrCmp (\r | |
246 | IN CONST CHAR16 *FirstString,\r | |
247 | IN CONST CHAR16 *SecondString\r | |
248 | )\r | |
249 | {\r | |
250 | //\r | |
251 | // ASSERT both strings are less long than PcdMaximumUnicodeStringLength\r | |
252 | //\r | |
253 | ASSERT (StrSize (FirstString) != 0);\r | |
254 | ASSERT (StrSize (SecondString) != 0);\r | |
255 | \r | |
256 | while ((*FirstString != L'\0') && (*FirstString == *SecondString)) {\r | |
257 | FirstString++;\r | |
258 | SecondString++;\r | |
259 | }\r | |
260 | return *FirstString - *SecondString;\r | |
261 | }\r | |
262 | \r | |
263 | /**\r | |
264 | Compares two Null-terminated Unicode strings with maximum lengths, and\r | |
265 | returns the difference between the first mismatched Unicode characters.\r | |
266 | \r | |
267 | This function compares the Null-terminated Unicode string FirstString to the\r | |
268 | Null-terminated Unicode string SecondString. At most, Length Unicode\r | |
269 | characters will be compared. If Length is 0, then 0 is returned. If\r | |
270 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r | |
271 | value returned is the first mismatched Unicode character in SecondString\r | |
272 | subtracted from the first mismatched Unicode character in FirstString.\r | |
273 | \r | |
274 | If Length > 0 and FirstString is NULL, then ASSERT().\r | |
275 | If Length > 0 and FirstString is not aligned on a 16-bit bounadary, then ASSERT().\r | |
276 | If Length > 0 and SecondString is NULL, then ASSERT().\r | |
277 | If Length > 0 and SecondString is not aligned on a 16-bit bounadary, then ASSERT().\r | |
278 | If PcdMaximumUnicodeStringLength is not zero, and FirstString contains more\r | |
279 | than PcdMaximumUnicodeStringLength Unicode characters not including the\r | |
280 | Null-terminator, then ASSERT().\r | |
281 | If PcdMaximumUnicodeStringLength is not zero, and SecondString contains more\r | |
282 | than PcdMaximumUnicodeStringLength Unicode characters not including the\r | |
283 | Null-terminator, then ASSERT().\r | |
284 | \r | |
285 | @param FirstString Pointer to a Null-terminated Unicode string.\r | |
286 | @param SecondString Pointer to a Null-terminated Unicode string.\r | |
287 | @param Length Maximum number of Unicode characters to compare.\r | |
288 | \r | |
1106ffe1 | 289 | @retval 0 FirstString is identical to SecondString.\r |
24dcb5e5 | 290 | @return The value returned is the first mismatched Unicode character in SecondString\r |
291 | subtracted from the first mismatched Unicode character in FirstString.\r | |
e1f414b6 | 292 | \r |
293 | **/\r | |
294 | INTN\r | |
295 | EFIAPI\r | |
296 | StrnCmp (\r | |
297 | IN CONST CHAR16 *FirstString,\r | |
298 | IN CONST CHAR16 *SecondString,\r | |
299 | IN UINTN Length\r | |
300 | )\r | |
301 | {\r | |
2bfb6009 | 302 | if (Length == 0) {\r |
e1f414b6 | 303 | return 0;\r |
304 | }\r | |
305 | \r | |
306 | //\r | |
307 | // ASSERT both strings are less long than PcdMaximumUnicodeStringLength.\r | |
308 | // Length tests are performed inside StrLen().\r | |
309 | //\r | |
310 | ASSERT (StrSize (FirstString) != 0);\r | |
311 | ASSERT (StrSize (SecondString) != 0);\r | |
312 | \r | |
313 | while ((*FirstString != L'\0') &&\r | |
314 | (*FirstString == *SecondString) &&\r | |
315 | (Length > 1)) {\r | |
316 | FirstString++;\r | |
317 | SecondString++;\r | |
318 | Length--;\r | |
319 | }\r | |
320 | \r | |
321 | return *FirstString - *SecondString;\r | |
322 | }\r | |
323 | \r | |
324 | /**\r | |
325 | Concatenates one Null-terminated Unicode string to another Null-terminated\r | |
326 | Unicode string, and returns the concatenated Unicode string.\r | |
327 | \r | |
328 | This function concatenates two Null-terminated Unicode strings. The contents\r | |
329 | of Null-terminated Unicode string Source are concatenated to the end of\r | |
330 | Null-terminated Unicode string Destination. The Null-terminated concatenated\r | |
331 | Unicode String is returned. If Source and Destination overlap, then the\r | |
332 | results are undefined.\r | |
333 | \r | |
334 | If Destination is NULL, then ASSERT().\r | |
335 | If Source is NULL, then ASSERT().\r | |
336 | If Source and Destination overlap, then ASSERT().\r | |
337 | If PcdMaximumUnicodeStringLength is not zero, and Destination contains more\r | |
338 | than PcdMaximumUnicodeStringLength Unicode characters not including the\r | |
339 | Null-terminator, then ASSERT().\r | |
340 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r | |
341 | PcdMaximumUnicodeStringLength Unicode characters not including the\r | |
342 | Null-terminator, then ASSERT().\r | |
343 | If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination\r | |
344 | and Source results in a Unicode string with more than\r | |
345 | PcdMaximumUnicodeStringLength Unicode characters not including the\r | |
346 | Null-terminator, then ASSERT().\r | |
347 | \r | |
348 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
349 | @param Source Pointer to a Null-terminated Unicode string.\r | |
350 | \r | |
24dcb5e5 | 351 | @return Destination pointing to the concatenated Unicode string.\r |
e1f414b6 | 352 | \r |
353 | **/\r | |
354 | CHAR16 *\r | |
355 | EFIAPI\r | |
356 | StrCat (\r | |
357 | IN OUT CHAR16 *Destination,\r | |
358 | IN CONST CHAR16 *Source\r | |
359 | )\r | |
360 | {\r | |
361 | StrCpy (Destination + StrLen (Destination), Source);\r | |
362 | \r | |
363 | //\r | |
364 | // Size of the resulting string should never be zero.\r | |
365 | // PcdMaximumUnicodeStringLength is tested inside StrLen().\r | |
366 | //\r | |
367 | ASSERT (StrSize (Destination) != 0);\r | |
368 | return Destination;\r | |
369 | }\r | |
370 | \r | |
371 | /**\r | |
372 | Concatenates one Null-terminated Unicode string with a maximum length to the\r | |
373 | end of another Null-terminated Unicode string, and returns the concatenated\r | |
374 | Unicode string.\r | |
375 | \r | |
376 | This function concatenates two Null-terminated Unicode strings. The contents\r | |
377 | of Null-terminated Unicode string Source are concatenated to the end of\r | |
378 | Null-terminated Unicode string Destination, and Destination is returned. At\r | |
379 | most, Length Unicode characters are concatenated from Source to the end of\r | |
380 | Destination, and Destination is always Null-terminated. If Length is 0, then\r | |
381 | Destination is returned unmodified. If Source and Destination overlap, then\r | |
382 | the results are undefined.\r | |
383 | \r | |
384 | If Destination is NULL, then ASSERT().\r | |
385 | If Length > 0 and Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
386 | If Length > 0 and Source is NULL, then ASSERT().\r | |
387 | If Length > 0 and Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
388 | If Source and Destination overlap, then ASSERT().\r | |
389 | If PcdMaximumUnicodeStringLength is not zero, and Destination contains more\r | |
390 | than PcdMaximumUnicodeStringLength Unicode characters not including the\r | |
391 | Null-terminator, then ASSERT().\r | |
392 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than\r | |
393 | PcdMaximumUnicodeStringLength Unicode characters not including the\r | |
394 | Null-terminator, then ASSERT().\r | |
395 | If PcdMaximumUnicodeStringLength is not zero, and concatenating Destination\r | |
396 | and Source results in a Unicode string with more than\r | |
397 | PcdMaximumUnicodeStringLength Unicode characters not including the\r | |
398 | Null-terminator, then ASSERT().\r | |
399 | \r | |
400 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
401 | @param Source Pointer to a Null-terminated Unicode string.\r | |
402 | @param Length Maximum number of Unicode characters to concatenate from\r | |
403 | Source.\r | |
404 | \r | |
24dcb5e5 | 405 | @return Destination pointing to the concatenated Unicode string.\r |
e1f414b6 | 406 | \r |
407 | **/\r | |
408 | CHAR16 *\r | |
409 | EFIAPI\r | |
410 | StrnCat (\r | |
411 | IN OUT CHAR16 *Destination,\r | |
412 | IN CONST CHAR16 *Source,\r | |
413 | IN UINTN Length\r | |
414 | )\r | |
415 | {\r | |
416 | StrnCpy (Destination + StrLen (Destination), Source, Length);\r | |
417 | \r | |
418 | //\r | |
419 | // Size of the resulting string should never be zero.\r | |
420 | // PcdMaximumUnicodeStringLength is tested inside StrLen().\r | |
421 | //\r | |
422 | ASSERT (StrSize (Destination) != 0);\r | |
423 | return Destination;\r | |
424 | }\r | |
425 | \r | |
426 | /**\r | |
427 | Returns the first occurance of a Null-terminated Unicode sub-string \r | |
428 | in a Null-terminated Unicode string.\r | |
429 | \r | |
430 | This function scans the contents of the Null-terminated Unicode string \r | |
431 | specified by String and returns the first occurrence of SearchString. \r | |
432 | If SearchString is not found in String, then NULL is returned. If \r | |
433 | the length of SearchString is zero, then String is \r | |
434 | returned.\r | |
435 | \r | |
436 | If String is NULL, then ASSERT().\r | |
437 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
438 | If SearchString is NULL, then ASSERT().\r | |
439 | If SearchString is not aligned on a 16-bit boundary, then ASSERT().\r | |
440 | \r | |
441 | If PcdMaximumUnicodeStringLength is not zero, and SearchString \r | |
442 | or String contains more than PcdMaximumUnicodeStringLength Unicode \r | |
443 | characters not including the Null-terminator, then ASSERT().\r | |
444 | \r | |
24dcb5e5 | 445 | @param String Pointer to a Null-terminated Unicode string.\r |
4df26661 | 446 | @param SearchString Pointer to a Null-terminated Unicode string to search for.\r |
e1f414b6 | 447 | \r |
24dcb5e5 | 448 | @retval NULL If the SearchString does not appear in String.\r |
449 | @return Pointer to the matching sub-string.\r | |
e1f414b6 | 450 | \r |
451 | **/\r | |
452 | CHAR16 *\r | |
453 | EFIAPI\r | |
454 | StrStr (\r | |
4df26661 | 455 | IN CONST CHAR16 *String,\r |
456 | IN CONST CHAR16 *SearchString\r | |
e1f414b6 | 457 | )\r |
458 | {\r | |
459 | CONST CHAR16 *FirstMatch;\r | |
460 | CONST CHAR16 *SearchStringTmp;\r | |
461 | \r | |
e1f414b6 | 462 | //\r |
4df26661 | 463 | // ASSERT both strings are less long than PcdMaximumUnicodeStringLength.\r |
464 | // Length tests are performed inside StrLen().\r | |
e1f414b6 | 465 | //\r |
4df26661 | 466 | ASSERT (StrSize (String) != 0);\r |
467 | ASSERT (StrSize (SearchString) != 0);\r | |
e1f414b6 | 468 | \r |
469 | while (*String != '\0') {\r | |
470 | SearchStringTmp = SearchString;\r | |
471 | FirstMatch = String;\r | |
472 | \r | |
473 | while ((*String == *SearchStringTmp) \r | |
474 | && (*SearchStringTmp != '\0') \r | |
475 | && (*String != '\0')) {\r | |
476 | String++;\r | |
477 | SearchStringTmp++;\r | |
478 | } \r | |
479 | \r | |
38bbd3d9 | 480 | if ('\0' == *SearchStringTmp) {\r |
e1f414b6 | 481 | return (CHAR16 *) FirstMatch;\r |
482 | }\r | |
483 | \r | |
484 | if (SearchStringTmp == SearchString) {\r | |
485 | //\r | |
486 | // If no character from SearchString match,\r | |
487 | // move the pointer to the String under search\r | |
488 | // by one character.\r | |
489 | //\r | |
490 | String++;\r | |
491 | }\r | |
492 | }\r | |
493 | \r | |
494 | return NULL;\r | |
495 | }\r | |
496 | \r | |
497 | /**\r | |
498 | Check if a Unicode character is a decimal character.\r | |
499 | \r | |
500 | This internal function checks if a Unicode character is a \r | |
501 | decimal character. The valid decimal character is from\r | |
502 | L'0' to L'9'.\r | |
503 | \r | |
e1f414b6 | 504 | @param Char The character to check against.\r |
505 | \r | |
506 | @retval TRUE If the Char is a decmial character.\r | |
24dcb5e5 | 507 | @retval FALSE If the Char is not a decmial character.\r |
e1f414b6 | 508 | \r |
509 | **/\r | |
e1f414b6 | 510 | BOOLEAN\r |
42eedea9 | 511 | EFIAPI\r |
e1f414b6 | 512 | InternalIsDecimalDigitCharacter (\r |
513 | IN CHAR16 Char\r | |
514 | )\r | |
515 | {\r | |
516 | return (BOOLEAN) (Char >= L'0' && Char <= L'9');\r | |
517 | }\r | |
518 | \r | |
519 | /**\r | |
520 | Convert a Unicode character to upper case only if \r | |
521 | it maps to a valid small-case ASCII character.\r | |
522 | \r | |
523 | This internal function only deal with Unicode character\r | |
24dcb5e5 | 524 | which maps to a valid small-case ASCII character, i.e.\r |
e1f414b6 | 525 | L'a' to L'z'. For other Unicode character, the input character\r |
526 | is returned directly.\r | |
527 | \r | |
e1f414b6 | 528 | @param Char The character to convert.\r |
529 | \r | |
530 | @retval LowerCharacter If the Char is with range L'a' to L'z'.\r | |
531 | @retval Unchanged Otherwise.\r | |
532 | \r | |
533 | **/\r | |
e1f414b6 | 534 | CHAR16\r |
42eedea9 | 535 | EFIAPI\r |
e1f414b6 | 536 | InternalCharToUpper (\r |
537 | IN CHAR16 Char\r | |
538 | )\r | |
539 | {\r | |
540 | if (Char >= L'a' && Char <= L'z') {\r | |
541 | return (CHAR16) (Char - (L'a' - L'A'));\r | |
542 | }\r | |
543 | \r | |
544 | return Char;\r | |
545 | }\r | |
546 | \r | |
547 | /**\r | |
548 | Convert a Unicode character to numerical value.\r | |
549 | \r | |
550 | This internal function only deal with Unicode character\r | |
551 | which maps to a valid hexadecimal ASII character, i.e.\r | |
552 | L'0' to L'9', L'a' to L'f' or L'A' to L'F'. For other \r | |
553 | Unicode character, the value returned does not make sense.\r | |
554 | \r | |
555 | @param Char The character to convert.\r | |
556 | \r | |
24dcb5e5 | 557 | @return The numerical value converted.\r |
e1f414b6 | 558 | \r |
559 | **/\r | |
e1f414b6 | 560 | UINTN\r |
42eedea9 | 561 | EFIAPI\r |
e1f414b6 | 562 | InternalHexCharToUintn (\r |
563 | IN CHAR16 Char\r | |
564 | )\r | |
565 | {\r | |
566 | if (InternalIsDecimalDigitCharacter (Char)) {\r | |
567 | return Char - L'0';\r | |
568 | }\r | |
569 | \r | |
570 | return (UINTN) (10 + InternalCharToUpper (Char) - L'A');\r | |
571 | }\r | |
572 | \r | |
573 | /**\r | |
574 | Check if a Unicode character is a hexadecimal character.\r | |
575 | \r | |
576 | This internal function checks if a Unicode character is a \r | |
577 | decimal character. The valid hexadecimal character is \r | |
578 | L'0' to L'9', L'a' to L'f', or L'A' to L'F'.\r | |
579 | \r | |
580 | \r | |
581 | @param Char The character to check against.\r | |
582 | \r | |
583 | @retval TRUE If the Char is a hexadecmial character.\r | |
24dcb5e5 | 584 | @retval FALSE If the Char is not a hexadecmial character.\r |
e1f414b6 | 585 | \r |
586 | **/\r | |
e1f414b6 | 587 | BOOLEAN\r |
42eedea9 | 588 | EFIAPI\r |
e1f414b6 | 589 | InternalIsHexaDecimalDigitCharacter (\r |
590 | IN CHAR16 Char\r | |
591 | )\r | |
592 | {\r | |
593 | \r | |
594 | return (BOOLEAN) (InternalIsDecimalDigitCharacter (Char) ||\r | |
595 | (Char >= L'A' && Char <= L'F') ||\r | |
596 | (Char >= L'a' && Char <= L'f'));\r | |
597 | }\r | |
598 | \r | |
599 | /**\r | |
600 | Convert a Null-terminated Unicode decimal string to a value of \r | |
601 | type UINTN.\r | |
602 | \r | |
603 | This function returns a value of type UINTN by interpreting the contents \r | |
604 | of the Unicode string specified by String as a decimal number. The format \r | |
605 | of the input Unicode string String is:\r | |
606 | \r | |
607 | [spaces] [decimal digits].\r | |
608 | \r | |
609 | The valid decimal digit character is in the range [0-9]. The \r | |
610 | function will ignore the pad space, which includes spaces or \r | |
611 | tab characters, before [decimal digits]. The running zero in the \r | |
612 | beginning of [decimal digits] will be ignored. Then, the function \r | |
613 | stops at the first character that is a not a valid decimal character \r | |
614 | or a Null-terminator, whichever one comes first. \r | |
615 | \r | |
616 | If String is NULL, then ASSERT().\r | |
617 | If String is not aligned in a 16-bit boundary, then ASSERT(). \r | |
618 | If String has only pad spaces, then 0 is returned.\r | |
619 | If String has no pad spaces or valid decimal digits, \r | |
620 | then 0 is returned.\r | |
621 | If the number represented by String overflows according \r | |
622 | to the range defined by UINTN, then ASSERT().\r | |
623 | \r | |
624 | If PcdMaximumUnicodeStringLength is not zero, and String contains \r | |
625 | more than PcdMaximumUnicodeStringLength Unicode characters not including \r | |
626 | the Null-terminator, then ASSERT().\r | |
627 | \r | |
4df26661 | 628 | @param String Pointer to a Null-terminated Unicode string.\r |
e1f414b6 | 629 | \r |
24dcb5e5 | 630 | @return The value of type UINTN converted.\r |
e1f414b6 | 631 | \r |
632 | **/\r | |
633 | UINTN\r | |
634 | EFIAPI\r | |
635 | StrDecimalToUintn (\r | |
4df26661 | 636 | IN CONST CHAR16 *String\r |
e1f414b6 | 637 | )\r |
638 | {\r | |
639 | UINTN Result;\r | |
640 | \r | |
4df26661 | 641 | //\r |
642 | // ASSERT String is less long than PcdMaximumUnicodeStringLength.\r | |
643 | // Length tests are performed inside StrLen().\r | |
644 | //\r | |
645 | ASSERT (StrSize (String) != 0);\r | |
e1f414b6 | 646 | \r |
647 | //\r | |
648 | // Ignore the pad spaces (space or tab)\r | |
649 | //\r | |
38bbd3d9 | 650 | while ((L' ' ==*String) || (L'\t' == *String)) {\r |
e1f414b6 | 651 | String++;\r |
652 | }\r | |
653 | \r | |
654 | //\r | |
655 | // Ignore leading Zeros after the spaces\r | |
656 | //\r | |
38bbd3d9 | 657 | while (L'0' == *String) {\r |
e1f414b6 | 658 | String++;\r |
659 | }\r | |
660 | \r | |
661 | Result = 0;\r | |
662 | \r | |
663 | while (InternalIsDecimalDigitCharacter (*String)) {\r | |
664 | //\r | |
665 | // If the number represented by String overflows according \r | |
666 | // to the range defined by UINTN, then ASSERT().\r | |
667 | //\r | |
24dcb5e5 | 668 | ASSERT ((Result < QUOTIENT_MAX_UINTN_DIVIDED_BY_10) ||\r |
669 | ((QUOTIENT_MAX_UINTN_DIVIDED_BY_10 == Result) &&\r | |
670 | (*String - L'0') <= REMAINDER_MAX_UINTN_DIVIDED_BY_10)\r | |
e1f414b6 | 671 | );\r |
672 | \r | |
673 | Result = Result * 10 + (*String - L'0');\r | |
674 | String++;\r | |
675 | }\r | |
676 | \r | |
677 | return Result;\r | |
678 | }\r | |
679 | \r | |
680 | \r | |
681 | /**\r | |
682 | Convert a Null-terminated Unicode decimal string to a value of \r | |
683 | type UINT64.\r | |
684 | \r | |
685 | This function returns a value of type UINT64 by interpreting the contents \r | |
686 | of the Unicode string specified by String as a decimal number. The format \r | |
687 | of the input Unicode string String is:\r | |
688 | \r | |
689 | [spaces] [decimal digits].\r | |
690 | \r | |
691 | The valid decimal digit character is in the range [0-9]. The \r | |
692 | function will ignore the pad space, which includes spaces or \r | |
693 | tab characters, before [decimal digits]. The running zero in the \r | |
694 | beginning of [decimal digits] will be ignored. Then, the function \r | |
695 | stops at the first character that is a not a valid decimal character \r | |
696 | or a Null-terminator, whichever one comes first. \r | |
697 | \r | |
698 | If String is NULL, then ASSERT().\r | |
699 | If String is not aligned in a 16-bit boundary, then ASSERT(). \r | |
700 | If String has only pad spaces, then 0 is returned.\r | |
701 | If String has no pad spaces or valid decimal digits, \r | |
702 | then 0 is returned.\r | |
703 | If the number represented by String overflows according \r | |
704 | to the range defined by UINT64, then ASSERT().\r | |
705 | \r | |
706 | If PcdMaximumUnicodeStringLength is not zero, and String contains \r | |
707 | more than PcdMaximumUnicodeStringLength Unicode characters not including \r | |
708 | the Null-terminator, then ASSERT().\r | |
709 | \r | |
4df26661 | 710 | @param String Pointer to a Null-terminated Unicode string.\r |
e1f414b6 | 711 | \r |
24dcb5e5 | 712 | @return The value of type UINT64 converted.\r |
e1f414b6 | 713 | \r |
714 | **/\r | |
715 | UINT64\r | |
716 | EFIAPI\r | |
717 | StrDecimalToUint64 (\r | |
4df26661 | 718 | IN CONST CHAR16 *String\r |
e1f414b6 | 719 | )\r |
720 | {\r | |
721 | UINT64 Result;\r | |
722 | \r | |
4df26661 | 723 | //\r |
724 | // ASSERT String is less long than PcdMaximumUnicodeStringLength.\r | |
725 | // Length tests are performed inside StrLen().\r | |
726 | //\r | |
727 | ASSERT (StrSize (String) != 0);\r | |
e1f414b6 | 728 | \r |
729 | //\r | |
730 | // Ignore the pad spaces (space or tab)\r | |
731 | //\r | |
38bbd3d9 | 732 | while ((L' ' == *String) || (L'\t' == *String)) {\r |
e1f414b6 | 733 | String++;\r |
734 | }\r | |
735 | \r | |
736 | //\r | |
737 | // Ignore leading Zeros after the spaces\r | |
738 | //\r | |
38bbd3d9 | 739 | while (L'0' == *String) {\r |
e1f414b6 | 740 | String++;\r |
741 | }\r | |
742 | \r | |
743 | Result = 0;\r | |
744 | \r | |
745 | while (InternalIsDecimalDigitCharacter (*String)) {\r | |
746 | //\r | |
747 | // If the number represented by String overflows according \r | |
748 | // to the range defined by UINTN, then ASSERT().\r | |
749 | //\r | |
24dcb5e5 | 750 | ASSERT ((Result < QUOTIENT_MAX_UINT64_DIVIDED_BY_10) || \r |
751 | ((QUOTIENT_MAX_UINT64_DIVIDED_BY_10 == Result) && \r | |
752 | (*String - L'0') <= REMAINDER_MAX_UINT64_DIVIDED_BY_10)\r | |
e1f414b6 | 753 | );\r |
754 | \r | |
755 | Result = MultU64x32 (Result, 10) + (*String - L'0');\r | |
756 | String++;\r | |
757 | }\r | |
758 | \r | |
759 | return Result;\r | |
760 | }\r | |
761 | \r | |
762 | /**\r | |
763 | Convert a Null-terminated Unicode hexadecimal string to a value of type UINTN.\r | |
764 | \r | |
765 | This function returns a value of type UINTN by interpreting the contents \r | |
766 | of the Unicode string specified by String as a hexadecimal number. \r | |
767 | The format of the input Unicode string String is:\r | |
768 | \r | |
769 | [spaces][zeros][x][hexadecimal digits]. \r | |
770 | \r | |
771 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. \r | |
772 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. \r | |
773 | If "x" appears in the input string, it must be prefixed with at least one 0. \r | |
774 | The function will ignore the pad space, which includes spaces or tab characters, \r | |
775 | before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or \r | |
776 | [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the \r | |
777 | first valid hexadecimal digit. Then, the function stops at the first character that is \r | |
778 | a not a valid hexadecimal character or NULL, whichever one comes first.\r | |
779 | \r | |
780 | If String is NULL, then ASSERT().\r | |
781 | If String is not aligned in a 16-bit boundary, then ASSERT().\r | |
782 | If String has only pad spaces, then zero is returned.\r | |
783 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, \r | |
784 | then zero is returned.\r | |
785 | If the number represented by String overflows according to the range defined by \r | |
786 | UINTN, then ASSERT().\r | |
787 | \r | |
788 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than \r | |
789 | PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, \r | |
790 | then ASSERT().\r | |
791 | \r | |
4df26661 | 792 | @param String Pointer to a Null-terminated Unicode string.\r |
e1f414b6 | 793 | \r |
24dcb5e5 | 794 | @return The value of type UINTN converted.\r |
e1f414b6 | 795 | \r |
796 | **/\r | |
797 | UINTN\r | |
798 | EFIAPI\r | |
799 | StrHexToUintn (\r | |
4df26661 | 800 | IN CONST CHAR16 *String\r |
e1f414b6 | 801 | )\r |
802 | {\r | |
803 | UINTN Result;\r | |
804 | \r | |
4df26661 | 805 | //\r |
806 | // ASSERT String is less long than PcdMaximumUnicodeStringLength.\r | |
807 | // Length tests are performed inside StrLen().\r | |
808 | //\r | |
809 | ASSERT (StrSize (String) != 0);\r | |
e1f414b6 | 810 | \r |
811 | //\r | |
812 | // Ignore the pad spaces (space or tab) \r | |
813 | //\r | |
38bbd3d9 | 814 | while ((L' ' == *String) || (L'\t' == *String)) {\r |
e1f414b6 | 815 | String++;\r |
816 | }\r | |
817 | \r | |
818 | //\r | |
819 | // Ignore leading Zeros after the spaces\r | |
820 | //\r | |
38bbd3d9 | 821 | while (L'0' == *String) {\r |
e1f414b6 | 822 | String++;\r |
823 | }\r | |
824 | \r | |
825 | if (InternalCharToUpper (*String) == L'X') {\r | |
38bbd3d9 | 826 | ASSERT (L'0' == *(String - 1));\r |
e1f414b6 | 827 | if (*(String - 1) != L'0') {\r |
828 | return 0;\r | |
829 | }\r | |
830 | //\r | |
831 | // Skip the 'X'\r | |
832 | //\r | |
833 | String++;\r | |
834 | }\r | |
835 | \r | |
836 | Result = 0;\r | |
837 | \r | |
838 | while (InternalIsHexaDecimalDigitCharacter (*String)) {\r | |
839 | //\r | |
840 | // If the Hex Number represented by String overflows according \r | |
841 | // to the range defined by UINTN, then ASSERT().\r | |
842 | //\r | |
24dcb5e5 | 843 | ASSERT ((Result < QUOTIENT_MAX_UINTN_DIVIDED_BY_16) ||\r |
844 | ((QUOTIENT_MAX_UINTN_DIVIDED_BY_16 == Result) && \r | |
845 | (InternalHexCharToUintn (*String) <= REMAINDER_MAX_UINTN_DIVIDED_BY_16))\r | |
e1f414b6 | 846 | );\r |
847 | \r | |
848 | Result = (Result << 4) + InternalHexCharToUintn (*String);\r | |
849 | String++;\r | |
850 | }\r | |
851 | \r | |
852 | return Result;\r | |
853 | }\r | |
854 | \r | |
855 | \r | |
856 | /**\r | |
857 | Convert a Null-terminated Unicode hexadecimal string to a value of type UINT64.\r | |
858 | \r | |
859 | This function returns a value of type UINT64 by interpreting the contents \r | |
860 | of the Unicode string specified by String as a hexadecimal number. \r | |
861 | The format of the input Unicode string String is \r | |
862 | \r | |
863 | [spaces][zeros][x][hexadecimal digits]. \r | |
864 | \r | |
865 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. \r | |
866 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. \r | |
867 | If "x" appears in the input string, it must be prefixed with at least one 0. \r | |
868 | The function will ignore the pad space, which includes spaces or tab characters, \r | |
869 | before [zeros], [x] or [hexadecimal digit]. The running zero before [x] or \r | |
870 | [hexadecimal digit] will be ignored. Then, the decoding starts after [x] or the \r | |
871 | first valid hexadecimal digit. Then, the function stops at the first character that is \r | |
872 | a not a valid hexadecimal character or NULL, whichever one comes first.\r | |
873 | \r | |
874 | If String is NULL, then ASSERT().\r | |
875 | If String is not aligned in a 16-bit boundary, then ASSERT().\r | |
876 | If String has only pad spaces, then zero is returned.\r | |
877 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, \r | |
878 | then zero is returned.\r | |
879 | If the number represented by String overflows according to the range defined by \r | |
880 | UINT64, then ASSERT().\r | |
881 | \r | |
882 | If PcdMaximumUnicodeStringLength is not zero, and String contains more than \r | |
883 | PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, \r | |
884 | then ASSERT().\r | |
885 | \r | |
4df26661 | 886 | @param String Pointer to a Null-terminated Unicode string.\r |
e1f414b6 | 887 | \r |
24dcb5e5 | 888 | @return The value of type UINT64 converted.\r |
e1f414b6 | 889 | \r |
890 | **/\r | |
891 | UINT64\r | |
892 | EFIAPI\r | |
893 | StrHexToUint64 (\r | |
4df26661 | 894 | IN CONST CHAR16 *String\r |
e1f414b6 | 895 | )\r |
896 | {\r | |
897 | UINT64 Result;\r | |
898 | \r | |
4df26661 | 899 | //\r |
900 | // ASSERT String is less long than PcdMaximumUnicodeStringLength.\r | |
901 | // Length tests are performed inside StrLen().\r | |
902 | //\r | |
903 | ASSERT (StrSize (String) != 0);\r | |
e1f414b6 | 904 | \r |
905 | //\r | |
906 | // Ignore the pad spaces (space or tab) \r | |
907 | //\r | |
38bbd3d9 | 908 | while ((L' ' == *String) || (L'\t' == *String)) {\r |
e1f414b6 | 909 | String++;\r |
910 | }\r | |
911 | \r | |
912 | //\r | |
913 | // Ignore leading Zeros after the spaces\r | |
914 | //\r | |
38bbd3d9 | 915 | while (L'0' == *String) {\r |
e1f414b6 | 916 | String++;\r |
917 | }\r | |
918 | \r | |
919 | if (InternalCharToUpper (*String) == L'X') {\r | |
38bbd3d9 | 920 | ASSERT (L'0' == *(String - 1));\r |
e1f414b6 | 921 | if (*(String - 1) != L'0') {\r |
922 | return 0;\r | |
923 | }\r | |
924 | //\r | |
925 | // Skip the 'X'\r | |
926 | //\r | |
927 | String++;\r | |
928 | }\r | |
929 | \r | |
930 | Result = 0;\r | |
931 | \r | |
932 | while (InternalIsHexaDecimalDigitCharacter (*String)) {\r | |
933 | //\r | |
934 | // If the Hex Number represented by String overflows according \r | |
935 | // to the range defined by UINTN, then ASSERT().\r | |
936 | //\r | |
24dcb5e5 | 937 | ASSERT ((Result < QUOTIENT_MAX_UINT64_DIVIDED_BY_16)|| \r |
938 | ((QUOTIENT_MAX_UINT64_DIVIDED_BY_16 == Result) && \r | |
939 | (InternalHexCharToUintn (*String) <= REMAINDER_MAX_UINT64_DIVIDED_BY_16))\r | |
e1f414b6 | 940 | );\r |
941 | \r | |
942 | Result = LShiftU64 (Result, 4);\r | |
943 | Result = Result + InternalHexCharToUintn (*String);\r | |
944 | String++;\r | |
945 | }\r | |
946 | \r | |
947 | return Result;\r | |
948 | }\r | |
949 | \r | |
950 | /**\r | |
951 | Check if a ASCII character is a decimal character.\r | |
952 | \r | |
953 | This internal function checks if a Unicode character is a \r | |
954 | decimal character. The valid decimal character is from\r | |
955 | '0' to '9'.\r | |
956 | \r | |
957 | @param Char The character to check against.\r | |
958 | \r | |
959 | @retval TRUE If the Char is a decmial character.\r | |
24dcb5e5 | 960 | @retval FALSE If the Char is not a decmial character.\r |
e1f414b6 | 961 | \r |
962 | **/\r | |
e1f414b6 | 963 | BOOLEAN\r |
42eedea9 | 964 | EFIAPI\r |
e1f414b6 | 965 | InternalAsciiIsDecimalDigitCharacter (\r |
966 | IN CHAR8 Char\r | |
967 | )\r | |
968 | {\r | |
969 | return (BOOLEAN) (Char >= '0' && Char <= '9');\r | |
970 | }\r | |
971 | \r | |
972 | /**\r | |
973 | Check if a ASCII character is a hexadecimal character.\r | |
974 | \r | |
975 | This internal function checks if a ASCII character is a \r | |
976 | decimal character. The valid hexadecimal character is \r | |
977 | L'0' to L'9', L'a' to L'f', or L'A' to L'F'.\r | |
978 | \r | |
979 | \r | |
980 | @param Char The character to check against.\r | |
981 | \r | |
982 | @retval TRUE If the Char is a hexadecmial character.\r | |
24dcb5e5 | 983 | @retval FALSE If the Char is not a hexadecmial character.\r |
e1f414b6 | 984 | \r |
985 | **/\r | |
e1f414b6 | 986 | BOOLEAN\r |
42eedea9 | 987 | EFIAPI\r |
e1f414b6 | 988 | InternalAsciiIsHexaDecimalDigitCharacter (\r |
989 | IN CHAR8 Char\r | |
990 | )\r | |
991 | {\r | |
992 | \r | |
993 | return (BOOLEAN) (InternalAsciiIsDecimalDigitCharacter (Char) ||\r | |
994 | (Char >= 'A' && Char <= 'F') ||\r | |
995 | (Char >= 'a' && Char <= 'f'));\r | |
996 | }\r | |
997 | \r | |
998 | /**\r | |
999 | Convert a Null-terminated Unicode string to a Null-terminated \r | |
1000 | ASCII string and returns the ASCII string.\r | |
1001 | \r | |
1002 | This function converts the content of the Unicode string Source \r | |
1003 | to the ASCII string Destination by copying the lower 8 bits of \r | |
1004 | each Unicode character. It returns Destination. The function terminates \r | |
1005 | the ASCII string Destination by appending a Null-terminator character \r | |
1006 | at the end. The caller is responsible to make sure Destination points \r | |
1007 | to a buffer with size equal or greater than (StrLen (Source) + 1) in bytes.\r | |
1008 | \r | |
1009 | If Destination is NULL, then ASSERT().\r | |
1010 | If Source is NULL, then ASSERT().\r | |
1011 | If Source is not aligned on a 16-bit boundary, then ASSERT().\r | |
1012 | If Source and Destination overlap, then ASSERT().\r | |
1013 | \r | |
1014 | If any Unicode characters in Source contain non-zero value in \r | |
1015 | the upper 8 bits, then ASSERT().\r | |
1016 | \r | |
1017 | If PcdMaximumUnicodeStringLength is not zero, and Source contains \r | |
1018 | more than PcdMaximumUnicodeStringLength Unicode characters not including \r | |
1019 | the Null-terminator, then ASSERT().\r | |
1020 | \r | |
1021 | If PcdMaximumAsciiStringLength is not zero, and Source contains more \r | |
1022 | than PcdMaximumAsciiStringLength Unicode characters not including the \r | |
1023 | Null-terminator, then ASSERT().\r | |
1024 | \r | |
1025 | @param Source Pointer to a Null-terminated Unicode string.\r | |
1026 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1027 | \r | |
24dcb5e5 | 1028 | @return Destination pointing to the converted ASCII string.\r |
e1f414b6 | 1029 | \r |
1030 | **/\r | |
1031 | CHAR8 *\r | |
1032 | EFIAPI\r | |
1033 | UnicodeStrToAsciiStr (\r | |
4df26661 | 1034 | IN CONST CHAR16 *Source,\r |
1035 | OUT CHAR8 *Destination\r | |
e1f414b6 | 1036 | )\r |
1037 | {\r | |
4df26661 | 1038 | CHAR8 *ReturnValue;\r |
1039 | \r | |
e1f414b6 | 1040 | ASSERT (Destination != NULL);\r |
4df26661 | 1041 | \r |
1042 | //\r | |
1043 | // ASSERT if Source is long than PcdMaximumUnicodeStringLength.\r | |
1044 | // Length tests are performed inside StrLen().\r | |
1045 | //\r | |
1046 | ASSERT (StrSize (Source) != 0);\r | |
e1f414b6 | 1047 | \r |
1048 | //\r | |
1049 | // Source and Destination should not overlap\r | |
1050 | //\r | |
1051 | ASSERT ((UINTN) ((CHAR16 *) Destination - Source) > StrLen (Source));\r | |
1052 | ASSERT ((UINTN) ((CHAR8 *) Source - Destination) > StrLen (Source));\r | |
1053 | \r | |
e1f414b6 | 1054 | \r |
4df26661 | 1055 | ReturnValue = Destination;\r |
e1f414b6 | 1056 | while (*Source != '\0') {\r |
1057 | //\r | |
1058 | // If any Unicode characters in Source contain \r | |
1059 | // non-zero value in the upper 8 bits, then ASSERT().\r | |
1060 | //\r | |
1061 | ASSERT (*Source < 0x100);\r | |
1062 | *(Destination++) = (CHAR8) *(Source++);\r | |
1063 | }\r | |
1064 | \r | |
1065 | *Destination = '\0';\r | |
4df26661 | 1066 | \r |
1067 | //\r | |
1068 | // ASSERT Original Destination is less long than PcdMaximumAsciiStringLength.\r | |
1069 | // Length tests are performed inside AsciiStrLen().\r | |
1070 | //\r | |
1071 | ASSERT (AsciiStrSize (ReturnValue) != 0);\r | |
1072 | \r | |
1073 | return ReturnValue;\r | |
e1f414b6 | 1074 | }\r |
1075 | \r | |
1076 | \r | |
1077 | /**\r | |
1078 | Copies one Null-terminated ASCII string to another Null-terminated ASCII\r | |
1079 | string and returns the new ASCII string.\r | |
1080 | \r | |
1081 | This function copies the contents of the ASCII string Source to the ASCII\r | |
1082 | string Destination, and returns Destination. If Source and Destination\r | |
1083 | overlap, then the results are undefined.\r | |
1084 | \r | |
1085 | If Destination is NULL, then ASSERT().\r | |
1086 | If Source is NULL, then ASSERT().\r | |
1087 | If Source and Destination overlap, then ASSERT().\r | |
1088 | If PcdMaximumAsciiStringLength is not zero and Source contains more than\r | |
1089 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1090 | then ASSERT().\r | |
1091 | \r | |
1092 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1093 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1094 | \r | |
24dcb5e5 | 1095 | @return Destination pointing to the copied string.\r |
e1f414b6 | 1096 | \r |
1097 | **/\r | |
1098 | CHAR8 *\r | |
1099 | EFIAPI\r | |
1100 | AsciiStrCpy (\r | |
1101 | OUT CHAR8 *Destination,\r | |
1102 | IN CONST CHAR8 *Source\r | |
1103 | )\r | |
1104 | {\r | |
1105 | CHAR8 *ReturnValue;\r | |
1106 | \r | |
1107 | //\r | |
1108 | // Destination cannot be NULL\r | |
1109 | //\r | |
1110 | ASSERT (Destination != NULL);\r | |
1111 | \r | |
1112 | //\r | |
1113 | // Destination and source cannot overlap\r | |
1114 | //\r | |
1115 | ASSERT ((UINTN)(Destination - Source) > AsciiStrLen (Source));\r | |
1116 | ASSERT ((UINTN)(Source - Destination) > AsciiStrLen (Source));\r | |
1117 | \r | |
1118 | ReturnValue = Destination;\r | |
42eedea9 | 1119 | while (*Source != 0) {\r |
e1f414b6 | 1120 | *(Destination++) = *(Source++);\r |
1121 | }\r | |
1122 | *Destination = 0;\r | |
1123 | return ReturnValue;\r | |
1124 | }\r | |
1125 | \r | |
1126 | /**\r | |
1127 | Copies one Null-terminated ASCII string with a maximum length to another\r | |
1128 | Null-terminated ASCII string with a maximum length and returns the new ASCII\r | |
1129 | string.\r | |
1130 | \r | |
1131 | This function copies the contents of the ASCII string Source to the ASCII\r | |
1132 | string Destination, and returns Destination. At most, Length ASCII characters\r | |
1133 | are copied from Source to Destination. If Length is 0, then Destination is\r | |
1134 | returned unmodified. If Length is greater that the number of ASCII characters\r | |
1135 | in Source, then Destination is padded with Null ASCII characters. If Source\r | |
1136 | and Destination overlap, then the results are undefined.\r | |
1137 | \r | |
1138 | If Destination is NULL, then ASSERT().\r | |
1139 | If Source is NULL, then ASSERT().\r | |
1140 | If Source and Destination overlap, then ASSERT().\r | |
1141 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r | |
1142 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1143 | then ASSERT().\r | |
1144 | \r | |
1145 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1146 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1147 | @param Length Maximum number of ASCII characters to copy.\r | |
1148 | \r | |
24dcb5e5 | 1149 | @return Destination pointing to the copied string.\r |
e1f414b6 | 1150 | \r |
1151 | **/\r | |
1152 | CHAR8 *\r | |
1153 | EFIAPI\r | |
1154 | AsciiStrnCpy (\r | |
1155 | OUT CHAR8 *Destination,\r | |
1156 | IN CONST CHAR8 *Source,\r | |
1157 | IN UINTN Length\r | |
1158 | )\r | |
1159 | {\r | |
1160 | CHAR8 *ReturnValue;\r | |
1161 | \r | |
2bfb6009 | 1162 | if (Length == 0) {\r |
e1f414b6 | 1163 | return Destination;\r |
1164 | }\r | |
1165 | \r | |
1166 | //\r | |
1167 | // Destination cannot be NULL\r | |
1168 | //\r | |
1169 | ASSERT (Destination != NULL);\r | |
1170 | \r | |
1171 | //\r | |
1172 | // Destination and source cannot overlap\r | |
1173 | //\r | |
1174 | ASSERT ((UINTN)(Destination - Source) > AsciiStrLen (Source));\r | |
1175 | ASSERT ((UINTN)(Source - Destination) >= Length);\r | |
1176 | \r | |
1177 | ReturnValue = Destination;\r | |
1178 | \r | |
42eedea9 | 1179 | while (*Source != 0 && Length > 0) {\r |
e1f414b6 | 1180 | *(Destination++) = *(Source++);\r |
1181 | Length--;\r | |
1182 | }\r | |
1183 | \r | |
1184 | ZeroMem (Destination, Length * sizeof (*Destination));\r | |
1185 | return ReturnValue;\r | |
1186 | }\r | |
1187 | \r | |
1188 | /**\r | |
1189 | Returns the length of a Null-terminated ASCII string.\r | |
1190 | \r | |
1191 | This function returns the number of ASCII characters in the Null-terminated\r | |
1192 | ASCII string specified by String.\r | |
1193 | \r | |
1194 | If String is NULL, then ASSERT().\r | |
1195 | If PcdMaximumAsciiStringLength is not zero and String contains more than\r | |
1196 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1197 | then ASSERT().\r | |
1198 | \r | |
1199 | @param String Pointer to a Null-terminated ASCII string.\r | |
1200 | \r | |
1201 | @return The length of String.\r | |
1202 | \r | |
1203 | **/\r | |
1204 | UINTN\r | |
1205 | EFIAPI\r | |
1206 | AsciiStrLen (\r | |
1207 | IN CONST CHAR8 *String\r | |
1208 | )\r | |
1209 | {\r | |
1210 | UINTN Length;\r | |
1211 | \r | |
1212 | ASSERT (String != NULL);\r | |
1213 | \r | |
1214 | for (Length = 0; *String != '\0'; String++, Length++) {\r | |
1215 | //\r | |
1216 | // If PcdMaximumUnicodeStringLength is not zero,\r | |
1217 | // length should not more than PcdMaximumUnicodeStringLength\r | |
1218 | //\r | |
1219 | if (PcdGet32 (PcdMaximumAsciiStringLength) != 0) {\r | |
1220 | ASSERT (Length < PcdGet32 (PcdMaximumAsciiStringLength));\r | |
1221 | }\r | |
1222 | }\r | |
1223 | return Length;\r | |
1224 | }\r | |
1225 | \r | |
1226 | /**\r | |
1227 | Returns the size of a Null-terminated ASCII string in bytes, including the\r | |
1228 | Null terminator.\r | |
1229 | \r | |
1230 | This function returns the size, in bytes, of the Null-terminated ASCII string\r | |
1231 | specified by String.\r | |
1232 | \r | |
1233 | If String is NULL, then ASSERT().\r | |
1234 | If PcdMaximumAsciiStringLength is not zero and String contains more than\r | |
1235 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1236 | then ASSERT().\r | |
1237 | \r | |
1238 | @param String Pointer to a Null-terminated ASCII string.\r | |
1239 | \r | |
1240 | @return The size of String.\r | |
1241 | \r | |
1242 | **/\r | |
1243 | UINTN\r | |
1244 | EFIAPI\r | |
1245 | AsciiStrSize (\r | |
1246 | IN CONST CHAR8 *String\r | |
1247 | )\r | |
1248 | {\r | |
1249 | return (AsciiStrLen (String) + 1) * sizeof (*String);\r | |
1250 | }\r | |
1251 | \r | |
1252 | /**\r | |
1253 | Compares two Null-terminated ASCII strings, and returns the difference\r | |
1254 | between the first mismatched ASCII characters.\r | |
1255 | \r | |
1256 | This function compares the Null-terminated ASCII string FirstString to the\r | |
1257 | Null-terminated ASCII string SecondString. If FirstString is identical to\r | |
1258 | SecondString, then 0 is returned. Otherwise, the value returned is the first\r | |
1259 | mismatched ASCII character in SecondString subtracted from the first\r | |
1260 | mismatched ASCII character in FirstString.\r | |
1261 | \r | |
1262 | If FirstString is NULL, then ASSERT().\r | |
1263 | If SecondString is NULL, then ASSERT().\r | |
1264 | If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r | |
1265 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1266 | then ASSERT().\r | |
1267 | If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r | |
1268 | than PcdMaximumAsciiStringLength ASCII characters not including the\r | |
1269 | Null-terminator, then ASSERT().\r | |
1270 | \r | |
1271 | @param FirstString Pointer to a Null-terminated ASCII string.\r | |
1272 | @param SecondString Pointer to a Null-terminated ASCII string.\r | |
1273 | \r | |
1106ffe1 | 1274 | @retval 0 FirstString is identical to SecondString.\r |
24dcb5e5 | 1275 | @return The first mismatched ASCII character in SecondString subtracted\r |
1276 | from the first mismatched ASCII character in FirstString.\r | |
e1f414b6 | 1277 | \r |
1278 | **/\r | |
1279 | INTN\r | |
1280 | EFIAPI\r | |
1281 | AsciiStrCmp (\r | |
1282 | IN CONST CHAR8 *FirstString,\r | |
1283 | IN CONST CHAR8 *SecondString\r | |
1284 | )\r | |
1285 | {\r | |
1286 | //\r | |
1287 | // ASSERT both strings are less long than PcdMaximumAsciiStringLength\r | |
1288 | //\r | |
1289 | ASSERT (AsciiStrSize (FirstString));\r | |
1290 | ASSERT (AsciiStrSize (SecondString));\r | |
1291 | \r | |
1292 | while ((*FirstString != '\0') && (*FirstString == *SecondString)) {\r | |
1293 | FirstString++;\r | |
1294 | SecondString++;\r | |
1295 | }\r | |
1296 | \r | |
1297 | return *FirstString - *SecondString;\r | |
1298 | }\r | |
1299 | \r | |
1300 | /**\r | |
24dcb5e5 | 1301 | Converts a lowercase Ascii character to upper one.\r |
e1f414b6 | 1302 | \r |
1303 | If Chr is lowercase Ascii character, then converts it to upper one.\r | |
1304 | \r | |
1305 | If Value >= 0xA0, then ASSERT().\r | |
1306 | If (Value & 0x0F) >= 0x0A, then ASSERT().\r | |
1307 | \r | |
42eedea9 | 1308 | @param Chr one Ascii character\r |
e1f414b6 | 1309 | \r |
1310 | @return The uppercase value of Ascii character \r | |
1311 | \r | |
1312 | **/\r | |
e1f414b6 | 1313 | CHAR8\r |
42eedea9 | 1314 | EFIAPI\r |
e1f414b6 | 1315 | AsciiToUpper (\r |
1316 | IN CHAR8 Chr\r | |
1317 | )\r | |
1318 | {\r | |
1319 | return (UINT8) ((Chr >= 'a' && Chr <= 'z') ? Chr - ('a' - 'A') : Chr);\r | |
1320 | }\r | |
1321 | \r | |
1322 | /**\r | |
1323 | Convert a ASCII character to numerical value.\r | |
1324 | \r | |
1325 | This internal function only deal with Unicode character\r | |
1326 | which maps to a valid hexadecimal ASII character, i.e.\r | |
1327 | '0' to '9', 'a' to 'f' or 'A' to 'F'. For other \r | |
1328 | ASCII character, the value returned does not make sense.\r | |
1329 | \r | |
1330 | @param Char The character to convert.\r | |
1331 | \r | |
24dcb5e5 | 1332 | @return The numerical value converted.\r |
e1f414b6 | 1333 | \r |
1334 | **/\r | |
e1f414b6 | 1335 | UINTN\r |
42eedea9 | 1336 | EFIAPI\r |
e1f414b6 | 1337 | InternalAsciiHexCharToUintn (\r |
1338 | IN CHAR8 Char\r | |
1339 | )\r | |
1340 | {\r | |
1341 | if (InternalIsDecimalDigitCharacter (Char)) {\r | |
1342 | return Char - '0';\r | |
1343 | }\r | |
1344 | \r | |
1345 | return (UINTN) (10 + AsciiToUpper (Char) - 'A');\r | |
1346 | }\r | |
1347 | \r | |
1348 | \r | |
1349 | /**\r | |
1350 | Performs a case insensitive comparison of two Null-terminated ASCII strings,\r | |
1351 | and returns the difference between the first mismatched ASCII characters.\r | |
1352 | \r | |
1353 | This function performs a case insensitive comparison of the Null-terminated\r | |
1354 | ASCII string FirstString to the Null-terminated ASCII string SecondString. If\r | |
1355 | FirstString is identical to SecondString, then 0 is returned. Otherwise, the\r | |
1356 | value returned is the first mismatched lower case ASCII character in\r | |
1357 | SecondString subtracted from the first mismatched lower case ASCII character\r | |
1358 | in FirstString.\r | |
1359 | \r | |
1360 | If FirstString is NULL, then ASSERT().\r | |
1361 | If SecondString is NULL, then ASSERT().\r | |
1362 | If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r | |
1363 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1364 | then ASSERT().\r | |
1365 | If PcdMaximumAsciiStringLength is not zero and SecondString contains more\r | |
1366 | than PcdMaximumAsciiStringLength ASCII characters not including the\r | |
1367 | Null-terminator, then ASSERT().\r | |
1368 | \r | |
1369 | @param FirstString Pointer to a Null-terminated ASCII string.\r | |
1370 | @param SecondString Pointer to a Null-terminated ASCII string.\r | |
1371 | \r | |
1106ffe1 | 1372 | @retval 0 FirstString is identical to SecondString using case insensitive\r |
1373 | comparisons.\r | |
24dcb5e5 | 1374 | @return The first mismatched lower case ASCII character in SecondString subtracted\r |
1375 | from the first mismatched lower case ASCII character in FirstString.\r | |
e1f414b6 | 1376 | \r |
1377 | **/\r | |
1378 | INTN\r | |
1379 | EFIAPI\r | |
1380 | AsciiStriCmp (\r | |
1381 | IN CONST CHAR8 *FirstString,\r | |
1382 | IN CONST CHAR8 *SecondString\r | |
1383 | )\r | |
1384 | {\r | |
1385 | CHAR8 UpperFirstString;\r | |
1386 | CHAR8 UpperSecondString;\r | |
1387 | \r | |
1388 | //\r | |
1389 | // ASSERT both strings are less long than PcdMaximumAsciiStringLength\r | |
1390 | //\r | |
1391 | ASSERT (AsciiStrSize (FirstString));\r | |
1392 | ASSERT (AsciiStrSize (SecondString));\r | |
1393 | \r | |
1394 | UpperFirstString = AsciiToUpper (*FirstString);\r | |
1395 | UpperSecondString = AsciiToUpper (*SecondString);\r | |
1396 | while ((*FirstString != '\0') && (UpperFirstString == UpperSecondString)) {\r | |
1397 | FirstString++;\r | |
1398 | SecondString++;\r | |
1399 | UpperFirstString = AsciiToUpper (*FirstString);\r | |
1400 | UpperSecondString = AsciiToUpper (*SecondString);\r | |
1401 | }\r | |
1402 | \r | |
1403 | return UpperFirstString - UpperSecondString;\r | |
1404 | }\r | |
1405 | \r | |
1406 | /**\r | |
1407 | Compares two Null-terminated ASCII strings with maximum lengths, and returns\r | |
1408 | the difference between the first mismatched ASCII characters.\r | |
1409 | \r | |
1410 | This function compares the Null-terminated ASCII string FirstString to the\r | |
1411 | Null-terminated ASCII string SecondString. At most, Length ASCII characters\r | |
1412 | will be compared. If Length is 0, then 0 is returned. If FirstString is\r | |
1413 | identical to SecondString, then 0 is returned. Otherwise, the value returned\r | |
1414 | is the first mismatched ASCII character in SecondString subtracted from the\r | |
1415 | first mismatched ASCII character in FirstString.\r | |
1416 | \r | |
1417 | If FirstString is NULL, then ASSERT().\r | |
1418 | If SecondString is NULL, then ASSERT().\r | |
1419 | If PcdMaximumAsciiStringLength is not zero and FirstString contains more than\r | |
1420 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1421 | then ASSERT().\r | |
1422 | If PcdMaximumAsciiStringLength is not zero and SecondString contains more than\r | |
1423 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1424 | then ASSERT().\r | |
1425 | \r | |
1426 | @param FirstString Pointer to a Null-terminated ASCII string.\r | |
1427 | @param SecondString Pointer to a Null-terminated ASCII string.\r | |
2a254b90 | 1428 | @param Length Maximum number of ASCII characters to compare.\r |
1429 | \r | |
1106ffe1 | 1430 | @retval 0 FirstString is identical to SecondString.\r |
24dcb5e5 | 1431 | @return The first mismatched ASCII character in SecondString subtracted from the\r |
1432 | first mismatched ASCII character in FirstString.\r | |
e1f414b6 | 1433 | \r |
1434 | **/\r | |
1435 | INTN\r | |
1436 | EFIAPI\r | |
1437 | AsciiStrnCmp (\r | |
1438 | IN CONST CHAR8 *FirstString,\r | |
1439 | IN CONST CHAR8 *SecondString,\r | |
1440 | IN UINTN Length\r | |
1441 | )\r | |
1442 | {\r | |
2bfb6009 | 1443 | if (Length == 0) {\r |
e1f414b6 | 1444 | return 0;\r |
1445 | }\r | |
1446 | \r | |
1447 | //\r | |
1448 | // ASSERT both strings are less long than PcdMaximumAsciiStringLength\r | |
1449 | //\r | |
1450 | ASSERT (AsciiStrSize (FirstString));\r | |
1451 | ASSERT (AsciiStrSize (SecondString));\r | |
1452 | \r | |
1453 | while ((*FirstString != '\0') &&\r | |
1454 | (*FirstString == *SecondString) &&\r | |
1455 | (Length > 1)) {\r | |
1456 | FirstString++;\r | |
1457 | SecondString++;\r | |
1458 | Length--;\r | |
1459 | }\r | |
1460 | return *FirstString - *SecondString;\r | |
1461 | }\r | |
1462 | \r | |
1463 | /**\r | |
1464 | Concatenates one Null-terminated ASCII string to another Null-terminated\r | |
1465 | ASCII string, and returns the concatenated ASCII string.\r | |
1466 | \r | |
1467 | This function concatenates two Null-terminated ASCII strings. The contents of\r | |
1468 | Null-terminated ASCII string Source are concatenated to the end of Null-\r | |
1469 | terminated ASCII string Destination. The Null-terminated concatenated ASCII\r | |
1470 | String is returned.\r | |
1471 | \r | |
1472 | If Destination is NULL, then ASSERT().\r | |
1473 | If Source is NULL, then ASSERT().\r | |
1474 | If PcdMaximumAsciiStringLength is not zero and Destination contains more than\r | |
1475 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1476 | then ASSERT().\r | |
1477 | If PcdMaximumAsciiStringLength is not zero and Source contains more than\r | |
1478 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1479 | then ASSERT().\r | |
1480 | If PcdMaximumAsciiStringLength is not zero and concatenating Destination and\r | |
1481 | Source results in a ASCII string with more than PcdMaximumAsciiStringLength\r | |
1482 | ASCII characters, then ASSERT().\r | |
1483 | \r | |
1484 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1485 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1486 | \r | |
24dcb5e5 | 1487 | @return Destination pointing to the concatenated ASCII string.\r |
e1f414b6 | 1488 | \r |
1489 | **/\r | |
1490 | CHAR8 *\r | |
1491 | EFIAPI\r | |
1492 | AsciiStrCat (\r | |
1493 | IN OUT CHAR8 *Destination,\r | |
1494 | IN CONST CHAR8 *Source\r | |
1495 | )\r | |
1496 | {\r | |
1497 | AsciiStrCpy (Destination + AsciiStrLen (Destination), Source);\r | |
1498 | \r | |
1499 | //\r | |
1500 | // Size of the resulting string should never be zero.\r | |
1501 | // PcdMaximumUnicodeStringLength is tested inside StrLen().\r | |
1502 | //\r | |
1503 | ASSERT (AsciiStrSize (Destination) != 0);\r | |
1504 | return Destination;\r | |
1505 | }\r | |
1506 | \r | |
1507 | /**\r | |
1508 | Concatenates one Null-terminated ASCII string with a maximum length to the\r | |
1509 | end of another Null-terminated ASCII string, and returns the concatenated\r | |
1510 | ASCII string.\r | |
1511 | \r | |
1512 | This function concatenates two Null-terminated ASCII strings. The contents\r | |
1513 | of Null-terminated ASCII string Source are concatenated to the end of Null-\r | |
1514 | terminated ASCII string Destination, and Destination is returned. At most,\r | |
1515 | Length ASCII characters are concatenated from Source to the end of\r | |
1516 | Destination, and Destination is always Null-terminated. If Length is 0, then\r | |
1517 | Destination is returned unmodified. If Source and Destination overlap, then\r | |
1518 | the results are undefined.\r | |
1519 | \r | |
1520 | If Destination is NULL, then ASSERT().\r | |
1521 | If Source is NULL, then ASSERT().\r | |
1522 | If Source and Destination overlap, then ASSERT().\r | |
1523 | If PcdMaximumAsciiStringLength is not zero, and Destination contains more than\r | |
1524 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1525 | then ASSERT().\r | |
1526 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than\r | |
1527 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator,\r | |
1528 | then ASSERT().\r | |
1529 | If PcdMaximumAsciiStringLength is not zero, and concatenating Destination and\r | |
1530 | Source results in a ASCII string with more than PcdMaximumAsciiStringLength\r | |
1531 | ASCII characters not including the Null-terminator, then ASSERT().\r | |
1532 | \r | |
1533 | @param Destination Pointer to a Null-terminated ASCII string.\r | |
1534 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1535 | @param Length Maximum number of ASCII characters to concatenate from\r | |
1536 | Source.\r | |
1537 | \r | |
24dcb5e5 | 1538 | @return Destination pointing to the concatenated ASCII string.\r |
e1f414b6 | 1539 | \r |
1540 | **/\r | |
1541 | CHAR8 *\r | |
1542 | EFIAPI\r | |
1543 | AsciiStrnCat (\r | |
1544 | IN OUT CHAR8 *Destination,\r | |
1545 | IN CONST CHAR8 *Source,\r | |
1546 | IN UINTN Length\r | |
1547 | )\r | |
1548 | {\r | |
1549 | AsciiStrnCpy (Destination + AsciiStrLen (Destination), Source, Length);\r | |
1550 | \r | |
1551 | //\r | |
1552 | // Size of the resulting string should never be zero.\r | |
1553 | // PcdMaximumUnicodeStringLength is tested inside StrLen().\r | |
1554 | //\r | |
1555 | ASSERT (AsciiStrSize (Destination) != 0);\r | |
1556 | return Destination;\r | |
1557 | }\r | |
1558 | \r | |
1559 | /**\r | |
1560 | Returns the first occurance of a Null-terminated ASCII sub-string \r | |
1561 | in a Null-terminated ASCII string.\r | |
1562 | \r | |
1563 | This function scans the contents of the ASCII string specified by String \r | |
1564 | and returns the first occurrence of SearchString. If SearchString is not \r | |
1565 | found in String, then NULL is returned. If the length of SearchString is zero, \r | |
1566 | then String is returned.\r | |
1567 | \r | |
1568 | If String is NULL, then ASSERT().\r | |
1569 | If SearchString is NULL, then ASSERT().\r | |
1570 | \r | |
1571 | If PcdMaximumAsciiStringLength is not zero, and SearchString or \r | |
1572 | String contains more than PcdMaximumAsciiStringLength Unicode characters \r | |
1573 | not including the Null-terminator, then ASSERT().\r | |
1574 | \r | |
4df26661 | 1575 | @param String Pointer to a Null-terminated ASCII string.\r |
1576 | @param SearchString Pointer to a Null-terminated ASCII string to search for.\r | |
e1f414b6 | 1577 | \r |
1578 | @retval NULL If the SearchString does not appear in String.\r | |
24dcb5e5 | 1579 | @return Pointer to the matching sub-string.\r |
e1f414b6 | 1580 | \r |
1581 | **/\r | |
1582 | CHAR8 *\r | |
1583 | EFIAPI\r | |
1584 | AsciiStrStr (\r | |
4df26661 | 1585 | IN CONST CHAR8 *String,\r |
e1f414b6 | 1586 | IN CONST CHAR8 *SearchString\r |
1587 | )\r | |
1588 | {\r | |
1589 | CONST CHAR8 *FirstMatch;\r | |
1590 | CONST CHAR8 *SearchStringTmp;\r | |
1591 | \r | |
e1f414b6 | 1592 | //\r |
4df26661 | 1593 | // ASSERT both strings are less long than PcdMaximumAsciiStringLength\r |
e1f414b6 | 1594 | //\r |
4df26661 | 1595 | ASSERT (AsciiStrSize (String) != 0);\r |
1596 | ASSERT (AsciiStrSize (SearchString) != 0);\r | |
e1f414b6 | 1597 | \r |
1598 | while (*String != '\0') {\r | |
1599 | SearchStringTmp = SearchString;\r | |
1600 | FirstMatch = String;\r | |
1601 | \r | |
1602 | while ((*String == *SearchStringTmp) \r | |
1603 | && (*SearchStringTmp != '\0') \r | |
1604 | && (*String != '\0')) {\r | |
1605 | String++;\r | |
1606 | SearchStringTmp++;\r | |
1607 | } \r | |
1608 | \r | |
1609 | if (*SearchStringTmp == '\0') {\r | |
1610 | return (CHAR8 *) FirstMatch;\r | |
1611 | }\r | |
1612 | \r | |
1613 | if (SearchStringTmp == SearchString) {\r | |
1614 | //\r | |
1615 | // If no character from SearchString match,\r | |
1616 | // move the pointer to the String under search\r | |
1617 | // by one character.\r | |
1618 | //\r | |
1619 | String++;\r | |
1620 | }\r | |
1621 | \r | |
1622 | }\r | |
1623 | \r | |
1624 | return NULL;\r | |
1625 | }\r | |
1626 | \r | |
1627 | /**\r | |
1628 | Convert a Null-terminated ASCII decimal string to a value of type \r | |
1629 | UINTN.\r | |
1630 | \r | |
1631 | This function returns a value of type UINTN by interpreting the contents \r | |
1632 | of the ASCII string String as a decimal number. The format of the input \r | |
1633 | ASCII string String is:\r | |
1634 | \r | |
1635 | [spaces] [decimal digits].\r | |
1636 | \r | |
1637 | The valid decimal digit character is in the range [0-9]. The function will \r | |
1638 | ignore the pad space, which includes spaces or tab characters, before the digits. \r | |
1639 | The running zero in the beginning of [decimal digits] will be ignored. Then, the \r | |
1640 | function stops at the first character that is a not a valid decimal character or \r | |
1641 | Null-terminator, whichever on comes first.\r | |
1642 | \r | |
1643 | If String has only pad spaces, then 0 is returned.\r | |
1644 | If String has no pad spaces or valid decimal digits, then 0 is returned.\r | |
1645 | If the number represented by String overflows according to the range defined by \r | |
1646 | UINTN, then ASSERT().\r | |
1647 | If String is NULL, then ASSERT().\r | |
1648 | If PcdMaximumAsciiStringLength is not zero, and String contains more than \r | |
1649 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, \r | |
1650 | then ASSERT().\r | |
1651 | \r | |
4df26661 | 1652 | @param String Pointer to a Null-terminated ASCII string.\r |
e1f414b6 | 1653 | \r |
24dcb5e5 | 1654 | @return The value of type UINTN converted.\r |
e1f414b6 | 1655 | \r |
1656 | **/\r | |
1657 | UINTN\r | |
1658 | EFIAPI\r | |
1659 | AsciiStrDecimalToUintn (\r | |
4df26661 | 1660 | IN CONST CHAR8 *String\r |
e1f414b6 | 1661 | )\r |
1662 | {\r | |
1663 | UINTN Result;\r | |
1664 | \r | |
4df26661 | 1665 | //\r |
1666 | // ASSERT Strings is less long than PcdMaximumAsciiStringLength\r | |
1667 | //\r | |
1668 | ASSERT (AsciiStrSize (String) != 0);\r | |
e1f414b6 | 1669 | \r |
1670 | //\r | |
1671 | // Ignore the pad spaces (space or tab)\r | |
1672 | //\r | |
38bbd3d9 | 1673 | while ((' ' == *String) || ('\t' == *String)) {\r |
e1f414b6 | 1674 | String++;\r |
1675 | }\r | |
1676 | \r | |
1677 | //\r | |
1678 | // Ignore leading Zeros after the spaces\r | |
1679 | //\r | |
38bbd3d9 | 1680 | while ('0' == *String) {\r |
e1f414b6 | 1681 | String++;\r |
1682 | }\r | |
1683 | \r | |
1684 | Result = 0;\r | |
1685 | \r | |
1686 | while (InternalAsciiIsDecimalDigitCharacter (*String)) {\r | |
1687 | //\r | |
1688 | // If the number represented by String overflows according \r | |
1689 | // to the range defined by UINTN, then ASSERT().\r | |
1690 | //\r | |
24dcb5e5 | 1691 | ASSERT ((Result < QUOTIENT_MAX_UINTN_DIVIDED_BY_10) ||\r |
1692 | ((QUOTIENT_MAX_UINTN_DIVIDED_BY_10 == Result) && \r | |
1693 | (*String - '0') <= REMAINDER_MAX_UINTN_DIVIDED_BY_10)\r | |
e1f414b6 | 1694 | );\r |
1695 | \r | |
1696 | Result = Result * 10 + (*String - '0');\r | |
1697 | String++;\r | |
1698 | }\r | |
1699 | \r | |
1700 | return Result;\r | |
1701 | }\r | |
1702 | \r | |
1703 | \r | |
1704 | /**\r | |
1705 | Convert a Null-terminated ASCII decimal string to a value of type \r | |
1706 | UINT64.\r | |
1707 | \r | |
1708 | This function returns a value of type UINT64 by interpreting the contents \r | |
1709 | of the ASCII string String as a decimal number. The format of the input \r | |
1710 | ASCII string String is:\r | |
1711 | \r | |
1712 | [spaces] [decimal digits].\r | |
1713 | \r | |
1714 | The valid decimal digit character is in the range [0-9]. The function will \r | |
1715 | ignore the pad space, which includes spaces or tab characters, before the digits. \r | |
1716 | The running zero in the beginning of [decimal digits] will be ignored. Then, the \r | |
1717 | function stops at the first character that is a not a valid decimal character or \r | |
1718 | Null-terminator, whichever on comes first.\r | |
1719 | \r | |
1720 | If String has only pad spaces, then 0 is returned.\r | |
1721 | If String has no pad spaces or valid decimal digits, then 0 is returned.\r | |
1722 | If the number represented by String overflows according to the range defined by \r | |
1723 | UINT64, then ASSERT().\r | |
1724 | If String is NULL, then ASSERT().\r | |
1725 | If PcdMaximumAsciiStringLength is not zero, and String contains more than \r | |
1726 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, \r | |
1727 | then ASSERT().\r | |
1728 | \r | |
4df26661 | 1729 | @param String Pointer to a Null-terminated ASCII string.\r |
e1f414b6 | 1730 | \r |
24dcb5e5 | 1731 | @return The value of type UINT64 converted.\r |
e1f414b6 | 1732 | \r |
1733 | **/\r | |
1734 | UINT64\r | |
1735 | EFIAPI\r | |
1736 | AsciiStrDecimalToUint64 (\r | |
4df26661 | 1737 | IN CONST CHAR8 *String\r |
e1f414b6 | 1738 | )\r |
1739 | {\r | |
1740 | UINT64 Result;\r | |
1741 | \r | |
4df26661 | 1742 | //\r |
1743 | // ASSERT Strings is less long than PcdMaximumAsciiStringLength\r | |
1744 | //\r | |
1745 | ASSERT (AsciiStrSize (String) != 0);\r | |
e1f414b6 | 1746 | \r |
1747 | //\r | |
1748 | // Ignore the pad spaces (space or tab)\r | |
1749 | //\r | |
38bbd3d9 | 1750 | while ((' ' == *String) || ('\t' == *String)) {\r |
e1f414b6 | 1751 | String++;\r |
1752 | }\r | |
1753 | \r | |
1754 | //\r | |
1755 | // Ignore leading Zeros after the spaces\r | |
1756 | //\r | |
38bbd3d9 | 1757 | while ('0' == *String) {\r |
e1f414b6 | 1758 | String++;\r |
1759 | }\r | |
1760 | \r | |
1761 | Result = 0;\r | |
1762 | \r | |
1763 | while (InternalAsciiIsDecimalDigitCharacter (*String)) {\r | |
1764 | //\r | |
1765 | // If the number represented by String overflows according \r | |
1766 | // to the range defined by UINTN, then ASSERT().\r | |
1767 | //\r | |
24dcb5e5 | 1768 | ASSERT ((Result < QUOTIENT_MAX_UINT64_DIVIDED_BY_10) || \r |
1769 | ((QUOTIENT_MAX_UINT64_DIVIDED_BY_10 == Result) && \r | |
1770 | (*String - '0') <= REMAINDER_MAX_UINT64_DIVIDED_BY_10)\r | |
e1f414b6 | 1771 | );\r |
1772 | \r | |
1773 | Result = MultU64x32 (Result, 10) + (*String - '0');\r | |
1774 | String++;\r | |
1775 | }\r | |
1776 | \r | |
1777 | return Result;\r | |
1778 | }\r | |
1779 | \r | |
1780 | /**\r | |
1781 | Convert a Null-terminated ASCII hexadecimal string to a value of type UINTN.\r | |
1782 | \r | |
1783 | This function returns a value of type UINTN by interpreting the contents of \r | |
1784 | the ASCII string String as a hexadecimal number. The format of the input ASCII \r | |
1785 | string String is:\r | |
1786 | \r | |
1787 | [spaces][zeros][x][hexadecimal digits].\r | |
1788 | \r | |
1789 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. \r | |
1790 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x" \r | |
1791 | appears in the input string, it must be prefixed with at least one 0. The function \r | |
1792 | will ignore the pad space, which includes spaces or tab characters, before [zeros], \r | |
1793 | [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits] \r | |
1794 | will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal \r | |
1795 | digit. Then, the function stops at the first character that is a not a valid \r | |
1796 | hexadecimal character or Null-terminator, whichever on comes first.\r | |
1797 | \r | |
1798 | If String has only pad spaces, then 0 is returned.\r | |
1799 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r | |
1800 | 0 is returned.\r | |
1801 | \r | |
1802 | If the number represented by String overflows according to the range defined by UINTN, \r | |
1803 | then ASSERT().\r | |
1804 | If String is NULL, then ASSERT().\r | |
1805 | If PcdMaximumAsciiStringLength is not zero, \r | |
1806 | and String contains more than PcdMaximumAsciiStringLength ASCII characters not including \r | |
1807 | the Null-terminator, then ASSERT().\r | |
1808 | \r | |
4df26661 | 1809 | @param String Pointer to a Null-terminated ASCII string.\r |
e1f414b6 | 1810 | \r |
24dcb5e5 | 1811 | @return The value of type UINTN converted.\r |
e1f414b6 | 1812 | \r |
1813 | **/\r | |
1814 | UINTN\r | |
1815 | EFIAPI\r | |
1816 | AsciiStrHexToUintn (\r | |
4df26661 | 1817 | IN CONST CHAR8 *String\r |
e1f414b6 | 1818 | )\r |
1819 | {\r | |
1820 | UINTN Result;\r | |
1821 | \r | |
4df26661 | 1822 | //\r |
1823 | // ASSERT Strings is less long than PcdMaximumAsciiStringLength\r | |
1824 | //\r | |
1825 | ASSERT (AsciiStrSize (String) != 0);\r | |
e1f414b6 | 1826 | \r |
1827 | //\r | |
1828 | // Ignore the pad spaces (space or tab) \r | |
1829 | //\r | |
38bbd3d9 | 1830 | while ((' ' == *String) || ('\t' == *String)) {\r |
e1f414b6 | 1831 | String++;\r |
1832 | }\r | |
1833 | \r | |
1834 | //\r | |
1835 | // Ignore leading Zeros after the spaces\r | |
1836 | //\r | |
38bbd3d9 | 1837 | while ('0' == *String) {\r |
e1f414b6 | 1838 | String++;\r |
1839 | }\r | |
1840 | \r | |
1841 | if (AsciiToUpper (*String) == 'X') {\r | |
38bbd3d9 | 1842 | ASSERT ('0' == *(String - 1));\r |
e1f414b6 | 1843 | if (*(String - 1) != '0') {\r |
1844 | return 0;\r | |
1845 | }\r | |
1846 | //\r | |
1847 | // Skip the 'X'\r | |
1848 | //\r | |
1849 | String++;\r | |
1850 | }\r | |
1851 | \r | |
1852 | Result = 0;\r | |
1853 | \r | |
1854 | while (InternalAsciiIsHexaDecimalDigitCharacter (*String)) {\r | |
1855 | //\r | |
1856 | // If the Hex Number represented by String overflows according \r | |
1857 | // to the range defined by UINTN, then ASSERT().\r | |
1858 | //\r | |
24dcb5e5 | 1859 | ASSERT ((Result < QUOTIENT_MAX_UINTN_DIVIDED_BY_16) ||\r |
1860 | ((QUOTIENT_MAX_UINTN_DIVIDED_BY_16 == Result) && \r | |
1861 | (InternalAsciiHexCharToUintn (*String) <= REMAINDER_MAX_UINTN_DIVIDED_BY_16))\r | |
e1f414b6 | 1862 | );\r |
1863 | \r | |
1864 | Result = (Result << 4) + InternalAsciiHexCharToUintn (*String);\r | |
1865 | String++;\r | |
1866 | }\r | |
1867 | \r | |
1868 | return Result;\r | |
1869 | }\r | |
1870 | \r | |
1871 | \r | |
1872 | /**\r | |
1873 | Convert a Null-terminated ASCII hexadecimal string to a value of type UINT64.\r | |
1874 | \r | |
1875 | This function returns a value of type UINT64 by interpreting the contents of \r | |
1876 | the ASCII string String as a hexadecimal number. The format of the input ASCII \r | |
1877 | string String is:\r | |
1878 | \r | |
1879 | [spaces][zeros][x][hexadecimal digits].\r | |
1880 | \r | |
1881 | The valid hexadecimal digit character is in the range [0-9], [a-f] and [A-F]. \r | |
1882 | The prefix "0x" is optional. Both "x" and "X" is allowed in "0x" prefix. If "x" \r | |
1883 | appears in the input string, it must be prefixed with at least one 0. The function \r | |
1884 | will ignore the pad space, which includes spaces or tab characters, before [zeros], \r | |
1885 | [x] or [hexadecimal digits]. The running zero before [x] or [hexadecimal digits] \r | |
1886 | will be ignored. Then, the decoding starts after [x] or the first valid hexadecimal \r | |
1887 | digit. Then, the function stops at the first character that is a not a valid \r | |
1888 | hexadecimal character or Null-terminator, whichever on comes first.\r | |
1889 | \r | |
1890 | If String has only pad spaces, then 0 is returned.\r | |
1891 | If String has no leading pad spaces, leading zeros or valid hexadecimal digits, then\r | |
1892 | 0 is returned.\r | |
1893 | \r | |
1894 | If the number represented by String overflows according to the range defined by UINT64, \r | |
1895 | then ASSERT().\r | |
1896 | If String is NULL, then ASSERT().\r | |
1897 | If PcdMaximumAsciiStringLength is not zero, \r | |
1898 | and String contains more than PcdMaximumAsciiStringLength ASCII characters not including \r | |
1899 | the Null-terminator, then ASSERT().\r | |
1900 | \r | |
4df26661 | 1901 | @param String Pointer to a Null-terminated ASCII string.\r |
e1f414b6 | 1902 | \r |
24dcb5e5 | 1903 | @return The value of type UINT64 converted.\r |
e1f414b6 | 1904 | \r |
1905 | **/\r | |
1906 | UINT64\r | |
1907 | EFIAPI\r | |
1908 | AsciiStrHexToUint64 (\r | |
4df26661 | 1909 | IN CONST CHAR8 *String\r |
e1f414b6 | 1910 | )\r |
1911 | {\r | |
1912 | UINT64 Result;\r | |
1913 | \r | |
4df26661 | 1914 | //\r |
1915 | // ASSERT Strings is less long than PcdMaximumAsciiStringLength\r | |
1916 | //\r | |
1917 | ASSERT (AsciiStrSize (String) != 0);\r | |
e1f414b6 | 1918 | \r |
1919 | //\r | |
1920 | // Ignore the pad spaces (space or tab) and leading Zeros\r | |
1921 | //\r | |
1922 | //\r | |
1923 | // Ignore the pad spaces (space or tab) \r | |
1924 | //\r | |
38bbd3d9 | 1925 | while ((' ' == *String) || ('\t' == *String)) {\r |
e1f414b6 | 1926 | String++;\r |
1927 | }\r | |
1928 | \r | |
1929 | //\r | |
1930 | // Ignore leading Zeros after the spaces\r | |
1931 | //\r | |
38bbd3d9 | 1932 | while ('0' == *String) {\r |
e1f414b6 | 1933 | String++;\r |
1934 | }\r | |
1935 | \r | |
1936 | if (AsciiToUpper (*String) == 'X') {\r | |
38bbd3d9 | 1937 | ASSERT ('0' == *(String - 1));\r |
e1f414b6 | 1938 | if (*(String - 1) != '0') {\r |
1939 | return 0;\r | |
1940 | }\r | |
1941 | //\r | |
1942 | // Skip the 'X'\r | |
1943 | //\r | |
1944 | String++;\r | |
1945 | }\r | |
1946 | \r | |
1947 | Result = 0;\r | |
1948 | \r | |
1949 | while (InternalAsciiIsHexaDecimalDigitCharacter (*String)) {\r | |
1950 | //\r | |
1951 | // If the Hex Number represented by String overflows according \r | |
1952 | // to the range defined by UINTN, then ASSERT().\r | |
1953 | //\r | |
24dcb5e5 | 1954 | ASSERT ((Result < QUOTIENT_MAX_UINT64_DIVIDED_BY_16) ||\r |
1955 | ((QUOTIENT_MAX_UINT64_DIVIDED_BY_16 == Result) && \r | |
1956 | (InternalAsciiHexCharToUintn (*String) <= REMAINDER_MAX_UINT64_DIVIDED_BY_16))\r | |
e1f414b6 | 1957 | );\r |
1958 | \r | |
1959 | Result = LShiftU64 (Result, 4);\r | |
1960 | Result = Result + InternalAsciiHexCharToUintn (*String);\r | |
1961 | String++;\r | |
1962 | }\r | |
1963 | \r | |
1964 | return Result;\r | |
1965 | }\r | |
1966 | \r | |
1967 | \r | |
1968 | /**\r | |
1969 | Convert one Null-terminated ASCII string to a Null-terminated \r | |
1970 | Unicode string and returns the Unicode string.\r | |
1971 | \r | |
1972 | This function converts the contents of the ASCII string Source to the Unicode \r | |
1973 | string Destination, and returns Destination. The function terminates the \r | |
1974 | Unicode string Destination by appending a Null-terminator character at the end. \r | |
1975 | The caller is responsible to make sure Destination points to a buffer with size \r | |
1976 | equal or greater than ((AsciiStrLen (Source) + 1) * sizeof (CHAR16)) in bytes.\r | |
1977 | \r | |
1978 | If Destination is NULL, then ASSERT().\r | |
1979 | If Destination is not aligned on a 16-bit boundary, then ASSERT().\r | |
1980 | If Source is NULL, then ASSERT().\r | |
1981 | If Source and Destination overlap, then ASSERT().\r | |
1982 | If PcdMaximumAsciiStringLength is not zero, and Source contains more than \r | |
1983 | PcdMaximumAsciiStringLength ASCII characters not including the Null-terminator, \r | |
1984 | then ASSERT().\r | |
1985 | If PcdMaximumUnicodeStringLength is not zero, and Source contains more than \r | |
1986 | PcdMaximumUnicodeStringLength ASCII characters not including the \r | |
1987 | Null-terminator, then ASSERT().\r | |
1988 | \r | |
1989 | @param Source Pointer to a Null-terminated ASCII string.\r | |
1990 | @param Destination Pointer to a Null-terminated Unicode string.\r | |
1991 | \r | |
24dcb5e5 | 1992 | @return Destination pointing to the converted Unicode string.\r |
e1f414b6 | 1993 | \r |
1994 | **/\r | |
1995 | CHAR16 *\r | |
1996 | EFIAPI\r | |
1997 | AsciiStrToUnicodeStr (\r | |
4df26661 | 1998 | IN CONST CHAR8 *Source,\r |
1999 | OUT CHAR16 *Destination\r | |
e1f414b6 | 2000 | )\r |
2001 | {\r | |
4df26661 | 2002 | CHAR16 *ReturnValue;\r |
2003 | \r | |
e1f414b6 | 2004 | ASSERT (Destination != NULL);\r |
e1f414b6 | 2005 | \r |
2006 | //\r | |
4df26661 | 2007 | // ASSERT Source is less long than PcdMaximumAsciiStringLength\r |
e1f414b6 | 2008 | //\r |
4df26661 | 2009 | ASSERT (AsciiStrSize (Source) != 0);\r |
e1f414b6 | 2010 | \r |
2011 | //\r | |
4df26661 | 2012 | // Source and Destination should not overlap\r |
e1f414b6 | 2013 | //\r |
4df26661 | 2014 | ASSERT ((UINTN) ((CHAR8 *) Destination - Source) > AsciiStrLen (Source));\r |
2015 | ASSERT ((UINTN) (Source - (CHAR8 *) Destination) > (AsciiStrLen (Source) * sizeof (CHAR16)));\r | |
e1f414b6 | 2016 | \r |
4df26661 | 2017 | \r |
2018 | ReturnValue = Destination;\r | |
e1f414b6 | 2019 | while (*Source != '\0') {\r |
2020 | *(Destination++) = (CHAR16) *(Source++);\r | |
2021 | }\r | |
2022 | //\r | |
2023 | // End the Destination with a NULL.\r | |
2024 | //\r | |
2025 | *Destination = '\0';\r | |
2026 | \r | |
4df26661 | 2027 | //\r |
2028 | // ASSERT Original Destination is less long than PcdMaximumUnicodeStringLength\r | |
2029 | //\r | |
2030 | ASSERT (StrSize (ReturnValue) != 0);\r | |
2031 | \r | |
2032 | return ReturnValue;\r | |
e1f414b6 | 2033 | }\r |
2034 | \r | |
2035 | /**\r | |
2036 | Converts an 8-bit value to an 8-bit BCD value.\r | |
2037 | \r | |
2038 | Converts the 8-bit value specified by Value to BCD. The BCD value is\r | |
2039 | returned.\r | |
2040 | \r | |
2041 | If Value >= 100, then ASSERT().\r | |
2042 | \r | |
2043 | @param Value The 8-bit value to convert to BCD. Range 0..99.\r | |
2044 | \r | |
24dcb5e5 | 2045 | @return The BCD value converted.\r |
e1f414b6 | 2046 | \r |
2047 | **/\r | |
2048 | UINT8\r | |
2049 | EFIAPI\r | |
2050 | DecimalToBcd8 (\r | |
2051 | IN UINT8 Value\r | |
2052 | )\r | |
2053 | {\r | |
2054 | ASSERT (Value < 100);\r | |
2055 | return (UINT8) (((Value / 10) << 4) | (Value % 10));\r | |
2056 | }\r | |
2057 | \r | |
2058 | /**\r | |
2059 | Converts an 8-bit BCD value to an 8-bit value.\r | |
2060 | \r | |
2061 | Converts the 8-bit BCD value specified by Value to an 8-bit value. The 8-bit\r | |
2062 | value is returned.\r | |
2063 | \r | |
2064 | If Value >= 0xA0, then ASSERT().\r | |
2065 | If (Value & 0x0F) >= 0x0A, then ASSERT().\r | |
2066 | \r | |
2067 | @param Value The 8-bit BCD value to convert to an 8-bit value.\r | |
2068 | \r | |
24dcb5e5 | 2069 | @return The 8-bit decimal value converted.\r |
e1f414b6 | 2070 | \r |
2071 | **/\r | |
2072 | UINT8\r | |
2073 | EFIAPI\r | |
2074 | BcdToDecimal8 (\r | |
2075 | IN UINT8 Value\r | |
2076 | )\r | |
2077 | {\r | |
2078 | ASSERT (Value < 0xa0);\r | |
2079 | ASSERT ((Value & 0xf) < 0xa);\r | |
2080 | return (UINT8) ((Value >> 4) * 10 + (Value & 0xf));\r | |
2081 | }\r | |
2082 | \r | |
2083 | \r | |
d9e5c1ff | 2084 | /**\r |
2085 | Convert a nibble in the low 4 bits of a byte to a Unicode hexadecimal character.\r | |
2086 | \r | |
2087 | This function converts a nibble in the low 4 bits of a byte to a Unicode hexadecimal \r | |
2088 | character For example, the nibble 0x01 and 0x0A will converted to L'1' and L'A' \r | |
2089 | respectively.\r | |
2090 | \r | |
2091 | The upper nibble in the input byte will be masked off.\r | |
2092 | \r | |
2093 | @param Nibble The nibble which is in the low 4 bits of the input byte.\r | |
2094 | \r | |
24dcb5e5 | 2095 | @return The Unicode hexadecimal character.\r |
d9e5c1ff | 2096 | \r |
2097 | **/\r | |
2098 | CHAR16\r | |
2099 | NibbleToHexChar (\r | |
2100 | IN UINT8 Nibble\r | |
2101 | )\r | |
2102 | {\r | |
2103 | Nibble &= 0x0F;\r | |
2104 | if (Nibble <= 0x9) {\r | |
2105 | return (CHAR16)(Nibble + L'0');\r | |
2106 | }\r | |
2107 | \r | |
2108 | return (CHAR16)(Nibble - 0xA + L'A');\r | |
2109 | }\r | |
2110 | \r | |
2111 | /** \r | |
2112 | Convert binary buffer to a Unicode String in a specified sequence. \r | |
2113 | \r | |
1106ffe1 | 2114 | This function converts bytes in the memory block pointed by Buffer to a Unicode String Str. \r |
d9e5c1ff | 2115 | Each byte will be represented by two Unicode characters. For example, byte 0xA1 will \r |
2116 | be converted into two Unicode character L'A' and L'1'. In the output String, the Unicode Character \r | |
2117 | for the Most Significant Nibble will be put before the Unicode Character for the Least Significant\r | |
2118 | Nibble. The output string for the buffer containing a single byte 0xA1 will be L"A1". \r | |
2119 | For a buffer with multiple bytes, the Unicode character produced by the first byte will be put into the \r | |
2120 | the last character in the output string. The one next to first byte will be put into the\r | |
2121 | character before the last character. This rules applies to the rest of the bytes. The Unicode\r | |
2122 | character by the last byte will be put into the first character in the output string. For example,\r | |
2123 | the input buffer for a 64-bits unsigned integrer 0x12345678abcdef1234 will be converted to\r | |
2124 | a Unicode string equal to L"12345678abcdef1234".\r | |
2125 | \r | |
24dcb5e5 | 2126 | @param String Pointer to the buffer allocated for the convertion.\r |
2127 | @param StringLen On input: Pointer to length in bytes of buffer to hold the Unicode string.\r | |
2128 | On output:If return EFI_SUCCESS, pointer to length of Unicode string converted.\r | |
2129 | If return EFI_BUFFER_TOO_SMALL, pointer to length of string buffer desired.\r | |
2130 | @param Buffer The pointer to a input buffer.\r | |
2131 | @param BufferSizeInBytes Lenth in bytes of the input buffer.\r | |
d9e5c1ff | 2132 | \r |
24dcb5e5 | 2133 | @retval EFI_SUCCESS The convertion is successfull. All bytes in Buffer has been convert to the corresponding\r |
2134 | Unicode character and placed into the right place in String.\r | |
2135 | @retval EFI_BUFFER_TOO_SMALL StringSizeInBytes is smaller than 2 * N + 1the number of bytes required to\r | |
2136 | complete the convertion. \r | |
d9e5c1ff | 2137 | **/\r |
2138 | RETURN_STATUS\r | |
2139 | EFIAPI\r | |
2140 | BufToHexString (\r | |
2141 | IN OUT CHAR16 *String,\r | |
2142 | IN OUT UINTN *StringLen,\r | |
2143 | IN CONST UINT8 *Buffer,\r | |
2144 | IN UINTN BufferSizeInBytes\r | |
2145 | )\r | |
2146 | {\r | |
2147 | UINTN Idx;\r | |
2148 | UINT8 Byte;\r | |
2149 | UINTN StrLen;\r | |
2150 | \r | |
2151 | //\r | |
2152 | // Make sure string is either passed or allocate enough.\r | |
2153 | // It takes 2 Unicode characters (4 bytes) to represent 1 byte of the binary buffer.\r | |
2154 | // Plus the Unicode termination character.\r | |
2155 | //\r | |
2156 | StrLen = BufferSizeInBytes * 2;\r | |
2157 | if (StrLen > ((*StringLen) - 1)) {\r | |
2158 | *StringLen = StrLen + 1;\r | |
2159 | return RETURN_BUFFER_TOO_SMALL;\r | |
2160 | }\r | |
2161 | \r | |
2162 | *StringLen = StrLen + 1;\r | |
2163 | //\r | |
2164 | // Ends the string.\r | |
2165 | //\r | |
2166 | String[StrLen] = L'\0'; \r | |
2167 | \r | |
2168 | for (Idx = 0; Idx < BufferSizeInBytes; Idx++) {\r | |
2169 | \r | |
2170 | Byte = Buffer[Idx];\r | |
2171 | String[StrLen - 1 - Idx * 2] = NibbleToHexChar (Byte);\r | |
2172 | String[StrLen - 2 - Idx * 2] = NibbleToHexChar ((UINT8)(Byte >> 4));\r | |
2173 | }\r | |
2174 | \r | |
2175 | return RETURN_SUCCESS;\r | |
2176 | }\r | |
2177 | \r | |
2178 | \r | |
2179 | /**\r | |
2180 | Convert a Unicode string consisting of hexadecimal characters to a output byte buffer.\r | |
2181 | \r | |
2182 | This function converts a Unicode string consisting of characters in the range of Hexadecimal\r | |
2183 | character (L'0' to L'9', L'A' to L'F' and L'a' to L'f') to a output byte buffer. The function will stop\r | |
2184 | at the first non-hexadecimal character or the NULL character. The convertion process can be\r | |
2185 | simply viewed as the reverse operations defined by BufToHexString. Two Unicode characters will be \r | |
2186 | converted into one byte. The first Unicode character represents the Most Significant Nibble and the\r | |
2187 | second Unicode character represents the Least Significant Nibble in the output byte. \r | |
2188 | The first pair of Unicode characters represents the last byte in the output buffer. The second pair of Unicode \r | |
2189 | characters represent the the byte preceding the last byte. This rule applies to the rest pairs of bytes. \r | |
2190 | The last pair represent the first byte in the output buffer. \r | |
2191 | \r | |
2192 | For example, a Unciode String L"12345678" will be converted into a buffer wil the following bytes \r | |
2193 | (first byte is the byte in the lowest memory address): "0x78, 0x56, 0x34, 0x12".\r | |
2194 | \r | |
2195 | If String has N valid hexadecimal characters for conversion, the caller must make sure Buffer is at least \r | |
2196 | N/2 (if N is even) or (N+1)/2 (if N if odd) bytes. \r | |
2197 | \r | |
2198 | @param Buffer The output buffer allocated by the caller.\r | |
2199 | @param BufferSizeInBytes On input, the size in bytes of Buffer. On output, it is updated to \r | |
2200 | contain the size of the Buffer which is actually used for the converstion.\r | |
2201 | For Unicode string with 2*N hexadecimal characters (not including the \r | |
2202 | tailing NULL character), N bytes of Buffer will be used for the output.\r | |
2203 | @param String The input hexadecimal string.\r | |
2204 | @param ConvertedStrLen The number of hexadecimal characters used to produce content in output\r | |
2205 | buffer Buffer.\r | |
2206 | \r | |
2207 | @retval RETURN_BUFFER_TOO_SMALL The input BufferSizeInBytes is too small to hold the output. BufferSizeInBytes\r | |
2208 | will be updated to the size required for the converstion.\r | |
2209 | @retval RETURN_SUCCESS The convertion is successful or the first Unicode character from String\r | |
2210 | is hexadecimal. If ConvertedStrLen is not NULL, it is updated\r | |
2211 | to the number of hexadecimal character used for the converstion.\r | |
2212 | **/\r | |
2213 | RETURN_STATUS\r | |
2214 | EFIAPI\r | |
2215 | HexStringToBuf (\r | |
2216 | OUT UINT8 *Buffer, \r | |
2217 | IN OUT UINTN *BufferSizeInBytes,\r | |
2218 | IN CONST CHAR16 *String,\r | |
2219 | OUT UINTN *ConvertedStrLen OPTIONAL\r | |
2220 | )\r | |
2221 | {\r | |
2222 | UINTN HexCnt;\r | |
2223 | UINTN Idx;\r | |
2224 | UINTN BufferLength;\r | |
2225 | UINT8 Digit;\r | |
2226 | UINT8 Byte;\r | |
2227 | \r | |
2228 | //\r | |
2229 | // Find out how many hex characters the string has.\r | |
2230 | //\r | |
2231 | for (Idx = 0, HexCnt = 0; IsHexDigit (&Digit, String[Idx]); Idx++, HexCnt++);\r | |
2232 | \r | |
2233 | if (HexCnt == 0) {\r | |
2234 | *ConvertedStrLen = 0;\r | |
2235 | return RETURN_SUCCESS;\r | |
2236 | }\r | |
2237 | //\r | |
2238 | // Two Unicode characters make up 1 buffer byte. Round up.\r | |
2239 | //\r | |
2240 | BufferLength = (HexCnt + 1) / 2; \r | |
2241 | \r | |
2242 | //\r | |
2243 | // Test if buffer is passed enough.\r | |
2244 | //\r | |
2245 | if (BufferLength > (*BufferSizeInBytes)) {\r | |
2246 | *BufferSizeInBytes = BufferLength;\r | |
2247 | return RETURN_BUFFER_TOO_SMALL;\r | |
2248 | }\r | |
2249 | \r | |
2250 | *BufferSizeInBytes = BufferLength;\r | |
2251 | \r | |
2252 | for (Idx = 0; Idx < HexCnt; Idx++) {\r | |
2253 | \r | |
2254 | IsHexDigit (&Digit, String[HexCnt - 1 - Idx]);\r | |
2255 | \r | |
2256 | //\r | |
2257 | // For odd charaters, write the lower nibble for each buffer byte,\r | |
2258 | // and for even characters, the upper nibble.\r | |
2259 | //\r | |
2260 | if ((Idx & 1) == 0) {\r | |
2261 | Byte = Digit;\r | |
2262 | } else {\r | |
2263 | Byte = Buffer[Idx / 2];\r | |
2264 | Byte &= 0x0F;\r | |
2265 | Byte = (UINT8) (Byte | Digit << 4);\r | |
2266 | }\r | |
2267 | \r | |
2268 | Buffer[Idx / 2] = Byte;\r | |
2269 | }\r | |
2270 | \r | |
2271 | if (ConvertedStrLen != NULL) {\r | |
2272 | *ConvertedStrLen = HexCnt;\r | |
2273 | }\r | |
2274 | \r | |
2275 | return RETURN_SUCCESS;\r | |
2276 | }\r | |
2277 | \r | |
2278 | \r | |
2279 | /**\r | |
2280 | Test if a Unicode character is a hexadecimal digit. If true, the input\r | |
2281 | Unicode character is converted to a byte. \r | |
2282 | \r | |
2283 | This function tests if a Unicode character is a hexadecimal digit. If true, the input\r | |
2284 | Unicode character is converted to a byte. For example, Unicode character\r | |
2285 | L'A' will be converted to 0x0A. \r | |
2286 | \r | |
24dcb5e5 | 2287 | If Digit is NULL, then ASSERT().\r |
1106ffe1 | 2288 | \r |
2289 | @param Digit The output hexadecimal digit.\r | |
1106ffe1 | 2290 | @param Char The input Unicode character.\r |
d9e5c1ff | 2291 | \r |
2292 | @retval TRUE Char is in the range of Hexadecimal number. Digit is updated\r | |
2293 | to the byte value of the number.\r | |
2294 | @retval FALSE Char is not in the range of Hexadecimal number. Digit is keep\r | |
2295 | intact.\r | |
2296 | \r | |
2297 | **/\r | |
2298 | BOOLEAN\r | |
2299 | IsHexDigit (\r | |
2300 | OUT UINT8 *Digit,\r | |
2301 | IN CHAR16 Char\r | |
2302 | )\r | |
2303 | {\r | |
2304 | ASSERT (Digit != NULL);\r | |
2305 | \r | |
2306 | if ((Char >= L'0') && (Char <= L'9')) {\r | |
2307 | *Digit = (UINT8) (Char - L'0');\r | |
2308 | return TRUE;\r | |
2309 | }\r | |
2310 | \r | |
2311 | if ((Char >= L'A') && (Char <= L'F')) {\r | |
2312 | *Digit = (UINT8) (Char - L'A' + 0x0A);\r | |
2313 | return TRUE;\r | |
2314 | }\r | |
2315 | \r | |
2316 | if ((Char >= L'a') && (Char <= L'f')) {\r | |
2317 | *Digit = (UINT8) (Char - L'a' + 0x0A);\r | |
2318 | return TRUE;\r | |
2319 | }\r | |
2320 | \r | |
2321 | return FALSE;\r | |
2322 | }\r | |
2323 | \r | |
2324 | \r |