utclib.c revision 1.1.1.4.2.1 1 1.1 jruoho /******************************************************************************
2 1.1 jruoho *
3 1.1 jruoho * Module Name: cmclib - Local implementation of C library functions
4 1.1 jruoho *
5 1.1 jruoho *****************************************************************************/
6 1.1 jruoho
7 1.1.1.2 jruoho /*
8 1.1.1.4.2.1 skrll * Copyright (C) 2000 - 2015, Intel Corp.
9 1.1 jruoho * All rights reserved.
10 1.1 jruoho *
11 1.1.1.2 jruoho * Redistribution and use in source and binary forms, with or without
12 1.1.1.2 jruoho * modification, are permitted provided that the following conditions
13 1.1.1.2 jruoho * are met:
14 1.1.1.2 jruoho * 1. Redistributions of source code must retain the above copyright
15 1.1.1.2 jruoho * notice, this list of conditions, and the following disclaimer,
16 1.1.1.2 jruoho * without modification.
17 1.1.1.2 jruoho * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 1.1.1.2 jruoho * substantially similar to the "NO WARRANTY" disclaimer below
19 1.1.1.2 jruoho * ("Disclaimer") and any redistribution must be conditioned upon
20 1.1.1.2 jruoho * including a substantially similar Disclaimer requirement for further
21 1.1.1.2 jruoho * binary redistribution.
22 1.1.1.2 jruoho * 3. Neither the names of the above-listed copyright holders nor the names
23 1.1.1.2 jruoho * of any contributors may be used to endorse or promote products derived
24 1.1.1.2 jruoho * from this software without specific prior written permission.
25 1.1.1.2 jruoho *
26 1.1.1.2 jruoho * Alternatively, this software may be distributed under the terms of the
27 1.1.1.2 jruoho * GNU General Public License ("GPL") version 2 as published by the Free
28 1.1.1.2 jruoho * Software Foundation.
29 1.1.1.2 jruoho *
30 1.1.1.2 jruoho * NO WARRANTY
31 1.1.1.2 jruoho * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 1.1.1.2 jruoho * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 1.1.1.2 jruoho * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 1.1.1.2 jruoho * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 1.1.1.2 jruoho * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 1.1.1.2 jruoho * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 1.1.1.2 jruoho * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 1.1.1.2 jruoho * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 1.1.1.2 jruoho * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 1.1.1.2 jruoho * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 1.1.1.2 jruoho * POSSIBILITY OF SUCH DAMAGES.
42 1.1.1.2 jruoho */
43 1.1 jruoho
44 1.1 jruoho #include "acpi.h"
45 1.1 jruoho #include "accommon.h"
46 1.1 jruoho
47 1.1 jruoho /*
48 1.1 jruoho * These implementations of standard C Library routines can optionally be
49 1.1.1.3 christos * used if a C library is not available. In general, they are less efficient
50 1.1 jruoho * than an inline or assembly implementation
51 1.1 jruoho */
52 1.1 jruoho
53 1.1 jruoho #define _COMPONENT ACPI_UTILITIES
54 1.1 jruoho ACPI_MODULE_NAME ("cmclib")
55 1.1 jruoho
56 1.1 jruoho
57 1.1 jruoho #ifndef ACPI_USE_SYSTEM_CLIBRARY
58 1.1 jruoho
59 1.1 jruoho #define NEGATIVE 1
60 1.1 jruoho #define POSITIVE 0
61 1.1 jruoho
62 1.1 jruoho
63 1.1 jruoho /*******************************************************************************
64 1.1 jruoho *
65 1.1 jruoho * FUNCTION: AcpiUtMemcmp (memcmp)
66 1.1 jruoho *
67 1.1 jruoho * PARAMETERS: Buffer1 - First Buffer
68 1.1 jruoho * Buffer2 - Second Buffer
69 1.1 jruoho * Count - Maximum # of bytes to compare
70 1.1 jruoho *
71 1.1 jruoho * RETURN: Index where Buffers mismatched, or 0 if Buffers matched
72 1.1 jruoho *
73 1.1 jruoho * DESCRIPTION: Compare two Buffers, with a maximum length
74 1.1 jruoho *
75 1.1 jruoho ******************************************************************************/
76 1.1 jruoho
77 1.1 jruoho int
78 1.1 jruoho AcpiUtMemcmp (
79 1.1 jruoho const char *Buffer1,
80 1.1 jruoho const char *Buffer2,
81 1.1 jruoho ACPI_SIZE Count)
82 1.1 jruoho {
83 1.1 jruoho
84 1.1 jruoho for ( ; Count-- && (*Buffer1 == *Buffer2); Buffer1++, Buffer2++)
85 1.1 jruoho {
86 1.1 jruoho }
87 1.1 jruoho
88 1.1 jruoho return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *Buffer1 -
89 1.1 jruoho (unsigned char) *Buffer2));
90 1.1 jruoho }
91 1.1 jruoho
92 1.1 jruoho
93 1.1 jruoho /*******************************************************************************
94 1.1 jruoho *
95 1.1 jruoho * FUNCTION: AcpiUtMemcpy (memcpy)
96 1.1 jruoho *
97 1.1 jruoho * PARAMETERS: Dest - Target of the copy
98 1.1 jruoho * Src - Source buffer to copy
99 1.1 jruoho * Count - Number of bytes to copy
100 1.1 jruoho *
101 1.1 jruoho * RETURN: Dest
102 1.1 jruoho *
103 1.1 jruoho * DESCRIPTION: Copy arbitrary bytes of memory
104 1.1 jruoho *
105 1.1 jruoho ******************************************************************************/
106 1.1 jruoho
107 1.1 jruoho void *
108 1.1 jruoho AcpiUtMemcpy (
109 1.1 jruoho void *Dest,
110 1.1 jruoho const void *Src,
111 1.1 jruoho ACPI_SIZE Count)
112 1.1 jruoho {
113 1.1 jruoho char *New = (char *) Dest;
114 1.1 jruoho char *Old = (char *) Src;
115 1.1 jruoho
116 1.1 jruoho
117 1.1 jruoho while (Count)
118 1.1 jruoho {
119 1.1 jruoho *New = *Old;
120 1.1 jruoho New++;
121 1.1 jruoho Old++;
122 1.1 jruoho Count--;
123 1.1 jruoho }
124 1.1 jruoho
125 1.1 jruoho return (Dest);
126 1.1 jruoho }
127 1.1 jruoho
128 1.1 jruoho
129 1.1 jruoho /*******************************************************************************
130 1.1 jruoho *
131 1.1 jruoho * FUNCTION: AcpiUtMemset (memset)
132 1.1 jruoho *
133 1.1 jruoho * PARAMETERS: Dest - Buffer to set
134 1.1 jruoho * Value - Value to set each byte of memory
135 1.1 jruoho * Count - Number of bytes to set
136 1.1 jruoho *
137 1.1 jruoho * RETURN: Dest
138 1.1 jruoho *
139 1.1 jruoho * DESCRIPTION: Initialize a buffer to a known value.
140 1.1 jruoho *
141 1.1 jruoho ******************************************************************************/
142 1.1 jruoho
143 1.1 jruoho void *
144 1.1 jruoho AcpiUtMemset (
145 1.1 jruoho void *Dest,
146 1.1 jruoho UINT8 Value,
147 1.1 jruoho ACPI_SIZE Count)
148 1.1 jruoho {
149 1.1 jruoho char *New = (char *) Dest;
150 1.1 jruoho
151 1.1 jruoho
152 1.1 jruoho while (Count)
153 1.1 jruoho {
154 1.1 jruoho *New = (char) Value;
155 1.1 jruoho New++;
156 1.1 jruoho Count--;
157 1.1 jruoho }
158 1.1 jruoho
159 1.1 jruoho return (Dest);
160 1.1 jruoho }
161 1.1 jruoho
162 1.1 jruoho
163 1.1 jruoho /*******************************************************************************
164 1.1 jruoho *
165 1.1 jruoho * FUNCTION: AcpiUtStrlen (strlen)
166 1.1 jruoho *
167 1.1 jruoho * PARAMETERS: String - Null terminated string
168 1.1 jruoho *
169 1.1 jruoho * RETURN: Length
170 1.1 jruoho *
171 1.1 jruoho * DESCRIPTION: Returns the length of the input string
172 1.1 jruoho *
173 1.1 jruoho ******************************************************************************/
174 1.1 jruoho
175 1.1 jruoho
176 1.1 jruoho ACPI_SIZE
177 1.1 jruoho AcpiUtStrlen (
178 1.1 jruoho const char *String)
179 1.1 jruoho {
180 1.1 jruoho UINT32 Length = 0;
181 1.1 jruoho
182 1.1 jruoho
183 1.1 jruoho /* Count the string until a null is encountered */
184 1.1 jruoho
185 1.1 jruoho while (*String)
186 1.1 jruoho {
187 1.1 jruoho Length++;
188 1.1 jruoho String++;
189 1.1 jruoho }
190 1.1 jruoho
191 1.1 jruoho return (Length);
192 1.1 jruoho }
193 1.1 jruoho
194 1.1 jruoho
195 1.1 jruoho /*******************************************************************************
196 1.1 jruoho *
197 1.1 jruoho * FUNCTION: AcpiUtStrcpy (strcpy)
198 1.1 jruoho *
199 1.1 jruoho * PARAMETERS: DstString - Target of the copy
200 1.1 jruoho * SrcString - The source string to copy
201 1.1 jruoho *
202 1.1 jruoho * RETURN: DstString
203 1.1 jruoho *
204 1.1 jruoho * DESCRIPTION: Copy a null terminated string
205 1.1 jruoho *
206 1.1 jruoho ******************************************************************************/
207 1.1 jruoho
208 1.1 jruoho char *
209 1.1 jruoho AcpiUtStrcpy (
210 1.1 jruoho char *DstString,
211 1.1 jruoho const char *SrcString)
212 1.1 jruoho {
213 1.1 jruoho char *String = DstString;
214 1.1 jruoho
215 1.1 jruoho
216 1.1 jruoho /* Move bytes brute force */
217 1.1 jruoho
218 1.1 jruoho while (*SrcString)
219 1.1 jruoho {
220 1.1 jruoho *String = *SrcString;
221 1.1 jruoho
222 1.1 jruoho String++;
223 1.1 jruoho SrcString++;
224 1.1 jruoho }
225 1.1 jruoho
226 1.1 jruoho /* Null terminate */
227 1.1 jruoho
228 1.1 jruoho *String = 0;
229 1.1 jruoho return (DstString);
230 1.1 jruoho }
231 1.1 jruoho
232 1.1 jruoho
233 1.1 jruoho /*******************************************************************************
234 1.1 jruoho *
235 1.1 jruoho * FUNCTION: AcpiUtStrncpy (strncpy)
236 1.1 jruoho *
237 1.1 jruoho * PARAMETERS: DstString - Target of the copy
238 1.1 jruoho * SrcString - The source string to copy
239 1.1 jruoho * Count - Maximum # of bytes to copy
240 1.1 jruoho *
241 1.1 jruoho * RETURN: DstString
242 1.1 jruoho *
243 1.1 jruoho * DESCRIPTION: Copy a null terminated string, with a maximum length
244 1.1 jruoho *
245 1.1 jruoho ******************************************************************************/
246 1.1 jruoho
247 1.1 jruoho char *
248 1.1 jruoho AcpiUtStrncpy (
249 1.1 jruoho char *DstString,
250 1.1 jruoho const char *SrcString,
251 1.1 jruoho ACPI_SIZE Count)
252 1.1 jruoho {
253 1.1 jruoho char *String = DstString;
254 1.1 jruoho
255 1.1 jruoho
256 1.1 jruoho /* Copy the string */
257 1.1 jruoho
258 1.1 jruoho for (String = DstString;
259 1.1 jruoho Count && (Count--, (*String++ = *SrcString++)); )
260 1.1 jruoho {;}
261 1.1 jruoho
262 1.1 jruoho /* Pad with nulls if necessary */
263 1.1 jruoho
264 1.1 jruoho while (Count--)
265 1.1 jruoho {
266 1.1 jruoho *String = 0;
267 1.1 jruoho String++;
268 1.1 jruoho }
269 1.1 jruoho
270 1.1 jruoho /* Return original pointer */
271 1.1 jruoho
272 1.1 jruoho return (DstString);
273 1.1 jruoho }
274 1.1 jruoho
275 1.1 jruoho
276 1.1 jruoho /*******************************************************************************
277 1.1 jruoho *
278 1.1 jruoho * FUNCTION: AcpiUtStrcmp (strcmp)
279 1.1 jruoho *
280 1.1 jruoho * PARAMETERS: String1 - First string
281 1.1 jruoho * String2 - Second string
282 1.1 jruoho *
283 1.1 jruoho * RETURN: Index where strings mismatched, or 0 if strings matched
284 1.1 jruoho *
285 1.1 jruoho * DESCRIPTION: Compare two null terminated strings
286 1.1 jruoho *
287 1.1 jruoho ******************************************************************************/
288 1.1 jruoho
289 1.1 jruoho int
290 1.1 jruoho AcpiUtStrcmp (
291 1.1 jruoho const char *String1,
292 1.1 jruoho const char *String2)
293 1.1 jruoho {
294 1.1 jruoho
295 1.1 jruoho
296 1.1 jruoho for ( ; (*String1 == *String2); String2++)
297 1.1 jruoho {
298 1.1 jruoho if (!*String1++)
299 1.1 jruoho {
300 1.1 jruoho return (0);
301 1.1 jruoho }
302 1.1 jruoho }
303 1.1 jruoho
304 1.1 jruoho return ((unsigned char) *String1 - (unsigned char) *String2);
305 1.1 jruoho }
306 1.1 jruoho
307 1.1 jruoho
308 1.1 jruoho /*******************************************************************************
309 1.1 jruoho *
310 1.1 jruoho * FUNCTION: AcpiUtStrchr (strchr)
311 1.1 jruoho *
312 1.1 jruoho * PARAMETERS: String - Search string
313 1.1 jruoho * ch - character to search for
314 1.1 jruoho *
315 1.1 jruoho * RETURN: Ptr to char or NULL if not found
316 1.1 jruoho *
317 1.1 jruoho * DESCRIPTION: Search a string for a character
318 1.1 jruoho *
319 1.1 jruoho ******************************************************************************/
320 1.1 jruoho
321 1.1 jruoho char *
322 1.1 jruoho AcpiUtStrchr (
323 1.1 jruoho const char *String,
324 1.1 jruoho int ch)
325 1.1 jruoho {
326 1.1 jruoho
327 1.1 jruoho
328 1.1 jruoho for ( ; (*String); String++)
329 1.1 jruoho {
330 1.1 jruoho if ((*String) == (char) ch)
331 1.1 jruoho {
332 1.1 jruoho return ((char *) String);
333 1.1 jruoho }
334 1.1 jruoho }
335 1.1 jruoho
336 1.1 jruoho return (NULL);
337 1.1 jruoho }
338 1.1.1.4 christos
339 1.1 jruoho
340 1.1 jruoho /*******************************************************************************
341 1.1 jruoho *
342 1.1 jruoho * FUNCTION: AcpiUtStrncmp (strncmp)
343 1.1 jruoho *
344 1.1 jruoho * PARAMETERS: String1 - First string
345 1.1 jruoho * String2 - Second string
346 1.1 jruoho * Count - Maximum # of bytes to compare
347 1.1 jruoho *
348 1.1 jruoho * RETURN: Index where strings mismatched, or 0 if strings matched
349 1.1 jruoho *
350 1.1 jruoho * DESCRIPTION: Compare two null terminated strings, with a maximum length
351 1.1 jruoho *
352 1.1 jruoho ******************************************************************************/
353 1.1 jruoho
354 1.1 jruoho int
355 1.1 jruoho AcpiUtStrncmp (
356 1.1 jruoho const char *String1,
357 1.1 jruoho const char *String2,
358 1.1 jruoho ACPI_SIZE Count)
359 1.1 jruoho {
360 1.1 jruoho
361 1.1 jruoho
362 1.1 jruoho for ( ; Count-- && (*String1 == *String2); String2++)
363 1.1 jruoho {
364 1.1 jruoho if (!*String1++)
365 1.1 jruoho {
366 1.1 jruoho return (0);
367 1.1 jruoho }
368 1.1 jruoho }
369 1.1 jruoho
370 1.1 jruoho return ((Count == ACPI_SIZE_MAX) ? 0 : ((unsigned char) *String1 -
371 1.1 jruoho (unsigned char) *String2));
372 1.1 jruoho }
373 1.1 jruoho
374 1.1 jruoho
375 1.1 jruoho /*******************************************************************************
376 1.1 jruoho *
377 1.1 jruoho * FUNCTION: AcpiUtStrcat (Strcat)
378 1.1 jruoho *
379 1.1 jruoho * PARAMETERS: DstString - Target of the copy
380 1.1 jruoho * SrcString - The source string to copy
381 1.1 jruoho *
382 1.1 jruoho * RETURN: DstString
383 1.1 jruoho *
384 1.1 jruoho * DESCRIPTION: Append a null terminated string to a null terminated string
385 1.1 jruoho *
386 1.1 jruoho ******************************************************************************/
387 1.1 jruoho
388 1.1 jruoho char *
389 1.1 jruoho AcpiUtStrcat (
390 1.1 jruoho char *DstString,
391 1.1 jruoho const char *SrcString)
392 1.1 jruoho {
393 1.1 jruoho char *String;
394 1.1 jruoho
395 1.1 jruoho
396 1.1 jruoho /* Find end of the destination string */
397 1.1 jruoho
398 1.1 jruoho for (String = DstString; *String++; )
399 1.1 jruoho { ; }
400 1.1 jruoho
401 1.1 jruoho /* Concatenate the string */
402 1.1 jruoho
403 1.1 jruoho for (--String; (*String++ = *SrcString++); )
404 1.1 jruoho { ; }
405 1.1 jruoho
406 1.1 jruoho return (DstString);
407 1.1 jruoho }
408 1.1 jruoho
409 1.1 jruoho
410 1.1 jruoho /*******************************************************************************
411 1.1 jruoho *
412 1.1 jruoho * FUNCTION: AcpiUtStrncat (strncat)
413 1.1 jruoho *
414 1.1 jruoho * PARAMETERS: DstString - Target of the copy
415 1.1 jruoho * SrcString - The source string to copy
416 1.1 jruoho * Count - Maximum # of bytes to copy
417 1.1 jruoho *
418 1.1 jruoho * RETURN: DstString
419 1.1 jruoho *
420 1.1 jruoho * DESCRIPTION: Append a null terminated string to a null terminated string,
421 1.1 jruoho * with a maximum count.
422 1.1 jruoho *
423 1.1 jruoho ******************************************************************************/
424 1.1 jruoho
425 1.1 jruoho char *
426 1.1 jruoho AcpiUtStrncat (
427 1.1 jruoho char *DstString,
428 1.1 jruoho const char *SrcString,
429 1.1 jruoho ACPI_SIZE Count)
430 1.1 jruoho {
431 1.1 jruoho char *String;
432 1.1 jruoho
433 1.1 jruoho
434 1.1 jruoho if (Count)
435 1.1 jruoho {
436 1.1 jruoho /* Find end of the destination string */
437 1.1 jruoho
438 1.1 jruoho for (String = DstString; *String++; )
439 1.1 jruoho { ; }
440 1.1 jruoho
441 1.1 jruoho /* Concatenate the string */
442 1.1 jruoho
443 1.1 jruoho for (--String; (*String++ = *SrcString++) && --Count; )
444 1.1 jruoho { ; }
445 1.1 jruoho
446 1.1 jruoho /* Null terminate if necessary */
447 1.1 jruoho
448 1.1 jruoho if (!Count)
449 1.1 jruoho {
450 1.1 jruoho *String = 0;
451 1.1 jruoho }
452 1.1 jruoho }
453 1.1 jruoho
454 1.1 jruoho return (DstString);
455 1.1 jruoho }
456 1.1 jruoho
457 1.1 jruoho
458 1.1 jruoho /*******************************************************************************
459 1.1 jruoho *
460 1.1 jruoho * FUNCTION: AcpiUtStrstr (strstr)
461 1.1 jruoho *
462 1.1 jruoho * PARAMETERS: String1 - Target string
463 1.1 jruoho * String2 - Substring to search for
464 1.1 jruoho *
465 1.1 jruoho * RETURN: Where substring match starts, Null if no match found
466 1.1 jruoho *
467 1.1 jruoho * DESCRIPTION: Checks if String2 occurs in String1. This is not really a
468 1.1 jruoho * full implementation of strstr, only sufficient for command
469 1.1 jruoho * matching
470 1.1 jruoho *
471 1.1 jruoho ******************************************************************************/
472 1.1 jruoho
473 1.1 jruoho char *
474 1.1 jruoho AcpiUtStrstr (
475 1.1 jruoho char *String1,
476 1.1 jruoho char *String2)
477 1.1 jruoho {
478 1.1.1.4.2.1 skrll UINT32 Length;
479 1.1 jruoho
480 1.1 jruoho
481 1.1.1.4.2.1 skrll Length = AcpiUtStrlen (String2);
482 1.1.1.4.2.1 skrll if (!Length)
483 1.1 jruoho {
484 1.1.1.4.2.1 skrll return (String1);
485 1.1 jruoho }
486 1.1 jruoho
487 1.1.1.4.2.1 skrll while (AcpiUtStrlen (String1) >= Length)
488 1.1 jruoho {
489 1.1.1.4.2.1 skrll if (AcpiUtMemcmp (String1, String2, Length) == 0)
490 1.1 jruoho {
491 1.1.1.4.2.1 skrll return (String1);
492 1.1 jruoho }
493 1.1.1.4.2.1 skrll String1++;
494 1.1 jruoho }
495 1.1 jruoho
496 1.1.1.4.2.1 skrll return (NULL);
497 1.1 jruoho }
498 1.1 jruoho
499 1.1 jruoho
500 1.1 jruoho /*******************************************************************************
501 1.1 jruoho *
502 1.1 jruoho * FUNCTION: AcpiUtStrtoul (strtoul)
503 1.1 jruoho *
504 1.1 jruoho * PARAMETERS: String - Null terminated string
505 1.1 jruoho * Terminater - Where a pointer to the terminating byte is
506 1.1 jruoho * returned
507 1.1 jruoho * Base - Radix of the string
508 1.1 jruoho *
509 1.1 jruoho * RETURN: Converted value
510 1.1 jruoho *
511 1.1 jruoho * DESCRIPTION: Convert a string into a 32-bit unsigned value.
512 1.1 jruoho * Note: use AcpiUtStrtoul64 for 64-bit integers.
513 1.1 jruoho *
514 1.1 jruoho ******************************************************************************/
515 1.1 jruoho
516 1.1 jruoho UINT32
517 1.1 jruoho AcpiUtStrtoul (
518 1.1 jruoho const char *String,
519 1.1 jruoho char **Terminator,
520 1.1 jruoho UINT32 Base)
521 1.1 jruoho {
522 1.1 jruoho UINT32 converted = 0;
523 1.1 jruoho UINT32 index;
524 1.1 jruoho UINT32 sign;
525 1.1 jruoho const char *StringStart;
526 1.1 jruoho UINT32 ReturnValue = 0;
527 1.1 jruoho ACPI_STATUS Status = AE_OK;
528 1.1 jruoho
529 1.1 jruoho
530 1.1 jruoho /*
531 1.1 jruoho * Save the value of the pointer to the buffer's first
532 1.1 jruoho * character, save the current errno value, and then
533 1.1 jruoho * skip over any white space in the buffer:
534 1.1 jruoho */
535 1.1 jruoho StringStart = String;
536 1.1 jruoho while (ACPI_IS_SPACE (*String) || *String == '\t')
537 1.1 jruoho {
538 1.1 jruoho ++String;
539 1.1 jruoho }
540 1.1 jruoho
541 1.1 jruoho /*
542 1.1 jruoho * The buffer may contain an optional plus or minus sign.
543 1.1 jruoho * If it does, then skip over it but remember what is was:
544 1.1 jruoho */
545 1.1 jruoho if (*String == '-')
546 1.1 jruoho {
547 1.1 jruoho sign = NEGATIVE;
548 1.1 jruoho ++String;
549 1.1 jruoho }
550 1.1 jruoho else if (*String == '+')
551 1.1 jruoho {
552 1.1 jruoho ++String;
553 1.1 jruoho sign = POSITIVE;
554 1.1 jruoho }
555 1.1 jruoho else
556 1.1 jruoho {
557 1.1 jruoho sign = POSITIVE;
558 1.1 jruoho }
559 1.1 jruoho
560 1.1 jruoho /*
561 1.1 jruoho * If the input parameter Base is zero, then we need to
562 1.1 jruoho * determine if it is octal, decimal, or hexadecimal:
563 1.1 jruoho */
564 1.1 jruoho if (Base == 0)
565 1.1 jruoho {
566 1.1 jruoho if (*String == '0')
567 1.1 jruoho {
568 1.1 jruoho if (AcpiUtToLower (*(++String)) == 'x')
569 1.1 jruoho {
570 1.1 jruoho Base = 16;
571 1.1 jruoho ++String;
572 1.1 jruoho }
573 1.1 jruoho else
574 1.1 jruoho {
575 1.1 jruoho Base = 8;
576 1.1 jruoho }
577 1.1 jruoho }
578 1.1 jruoho else
579 1.1 jruoho {
580 1.1 jruoho Base = 10;
581 1.1 jruoho }
582 1.1 jruoho }
583 1.1 jruoho else if (Base < 2 || Base > 36)
584 1.1 jruoho {
585 1.1 jruoho /*
586 1.1 jruoho * The specified Base parameter is not in the domain of
587 1.1 jruoho * this function:
588 1.1 jruoho */
589 1.1 jruoho goto done;
590 1.1 jruoho }
591 1.1 jruoho
592 1.1 jruoho /*
593 1.1 jruoho * For octal and hexadecimal bases, skip over the leading
594 1.1 jruoho * 0 or 0x, if they are present.
595 1.1 jruoho */
596 1.1 jruoho if (Base == 8 && *String == '0')
597 1.1 jruoho {
598 1.1 jruoho String++;
599 1.1 jruoho }
600 1.1 jruoho
601 1.1 jruoho if (Base == 16 &&
602 1.1 jruoho *String == '0' &&
603 1.1 jruoho AcpiUtToLower (*(++String)) == 'x')
604 1.1 jruoho {
605 1.1 jruoho String++;
606 1.1 jruoho }
607 1.1 jruoho
608 1.1 jruoho /*
609 1.1 jruoho * Main loop: convert the string to an unsigned long:
610 1.1 jruoho */
611 1.1 jruoho while (*String)
612 1.1 jruoho {
613 1.1 jruoho if (ACPI_IS_DIGIT (*String))
614 1.1 jruoho {
615 1.1 jruoho index = (UINT32) ((UINT8) *String - '0');
616 1.1 jruoho }
617 1.1 jruoho else
618 1.1 jruoho {
619 1.1 jruoho index = (UINT32) AcpiUtToUpper (*String);
620 1.1 jruoho if (ACPI_IS_UPPER (index))
621 1.1 jruoho {
622 1.1 jruoho index = index - 'A' + 10;
623 1.1 jruoho }
624 1.1 jruoho else
625 1.1 jruoho {
626 1.1 jruoho goto done;
627 1.1 jruoho }
628 1.1 jruoho }
629 1.1 jruoho
630 1.1 jruoho if (index >= Base)
631 1.1 jruoho {
632 1.1 jruoho goto done;
633 1.1 jruoho }
634 1.1 jruoho
635 1.1 jruoho /*
636 1.1 jruoho * Check to see if value is out of range:
637 1.1 jruoho */
638 1.1 jruoho
639 1.1 jruoho if (ReturnValue > ((ACPI_UINT32_MAX - (UINT32) index) /
640 1.1 jruoho (UINT32) Base))
641 1.1 jruoho {
642 1.1 jruoho Status = AE_ERROR;
643 1.1 jruoho ReturnValue = 0; /* reset */
644 1.1 jruoho }
645 1.1 jruoho else
646 1.1 jruoho {
647 1.1 jruoho ReturnValue *= Base;
648 1.1 jruoho ReturnValue += index;
649 1.1 jruoho converted = 1;
650 1.1 jruoho }
651 1.1 jruoho
652 1.1 jruoho ++String;
653 1.1 jruoho }
654 1.1 jruoho
655 1.1 jruoho done:
656 1.1 jruoho /*
657 1.1 jruoho * If appropriate, update the caller's pointer to the next
658 1.1 jruoho * unconverted character in the buffer.
659 1.1 jruoho */
660 1.1 jruoho if (Terminator)
661 1.1 jruoho {
662 1.1 jruoho if (converted == 0 && ReturnValue == 0 && String != NULL)
663 1.1 jruoho {
664 1.1 jruoho *Terminator = (char *) StringStart;
665 1.1 jruoho }
666 1.1 jruoho else
667 1.1 jruoho {
668 1.1 jruoho *Terminator = (char *) String;
669 1.1 jruoho }
670 1.1 jruoho }
671 1.1 jruoho
672 1.1 jruoho if (Status == AE_ERROR)
673 1.1 jruoho {
674 1.1 jruoho ReturnValue = ACPI_UINT32_MAX;
675 1.1 jruoho }
676 1.1 jruoho
677 1.1 jruoho /*
678 1.1 jruoho * If a minus sign was present, then "the conversion is negated":
679 1.1 jruoho */
680 1.1 jruoho if (sign == NEGATIVE)
681 1.1 jruoho {
682 1.1 jruoho ReturnValue = (ACPI_UINT32_MAX - ReturnValue) + 1;
683 1.1 jruoho }
684 1.1 jruoho
685 1.1 jruoho return (ReturnValue);
686 1.1 jruoho }
687 1.1 jruoho
688 1.1 jruoho
689 1.1 jruoho /*******************************************************************************
690 1.1 jruoho *
691 1.1 jruoho * FUNCTION: AcpiUtToUpper (TOUPPER)
692 1.1 jruoho *
693 1.1 jruoho * PARAMETERS: c - Character to convert
694 1.1 jruoho *
695 1.1 jruoho * RETURN: Converted character as an int
696 1.1 jruoho *
697 1.1 jruoho * DESCRIPTION: Convert character to uppercase
698 1.1 jruoho *
699 1.1 jruoho ******************************************************************************/
700 1.1 jruoho
701 1.1 jruoho int
702 1.1 jruoho AcpiUtToUpper (
703 1.1 jruoho int c)
704 1.1 jruoho {
705 1.1 jruoho
706 1.1 jruoho return (ACPI_IS_LOWER(c) ? ((c)-0x20) : (c));
707 1.1 jruoho }
708 1.1 jruoho
709 1.1 jruoho
710 1.1 jruoho /*******************************************************************************
711 1.1 jruoho *
712 1.1 jruoho * FUNCTION: AcpiUtToLower (TOLOWER)
713 1.1 jruoho *
714 1.1 jruoho * PARAMETERS: c - Character to convert
715 1.1 jruoho *
716 1.1 jruoho * RETURN: Converted character as an int
717 1.1 jruoho *
718 1.1 jruoho * DESCRIPTION: Convert character to lowercase
719 1.1 jruoho *
720 1.1 jruoho ******************************************************************************/
721 1.1 jruoho
722 1.1 jruoho int
723 1.1 jruoho AcpiUtToLower (
724 1.1 jruoho int c)
725 1.1 jruoho {
726 1.1 jruoho
727 1.1 jruoho return (ACPI_IS_UPPER(c) ? ((c)+0x20) : (c));
728 1.1 jruoho }
729 1.1 jruoho
730 1.1 jruoho
731 1.1 jruoho /*******************************************************************************
732 1.1 jruoho *
733 1.1 jruoho * FUNCTION: is* functions
734 1.1 jruoho *
735 1.1 jruoho * DESCRIPTION: is* functions use the ctype table below
736 1.1 jruoho *
737 1.1 jruoho ******************************************************************************/
738 1.1 jruoho
739 1.1 jruoho const UINT8 _acpi_ctype[257] = {
740 1.1.1.3 christos _ACPI_CN, /* 0x00 0 NUL */
741 1.1.1.3 christos _ACPI_CN, /* 0x01 1 SOH */
742 1.1.1.3 christos _ACPI_CN, /* 0x02 2 STX */
743 1.1.1.3 christos _ACPI_CN, /* 0x03 3 ETX */
744 1.1.1.3 christos _ACPI_CN, /* 0x04 4 EOT */
745 1.1.1.3 christos _ACPI_CN, /* 0x05 5 ENQ */
746 1.1.1.3 christos _ACPI_CN, /* 0x06 6 ACK */
747 1.1.1.3 christos _ACPI_CN, /* 0x07 7 BEL */
748 1.1.1.3 christos _ACPI_CN, /* 0x08 8 BS */
749 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x09 9 TAB */
750 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x0A 10 LF */
751 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x0B 11 VT */
752 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x0C 12 FF */
753 1.1.1.3 christos _ACPI_CN|_ACPI_SP, /* 0x0D 13 CR */
754 1.1.1.3 christos _ACPI_CN, /* 0x0E 14 SO */
755 1.1.1.3 christos _ACPI_CN, /* 0x0F 15 SI */
756 1.1.1.3 christos _ACPI_CN, /* 0x10 16 DLE */
757 1.1.1.3 christos _ACPI_CN, /* 0x11 17 DC1 */
758 1.1.1.3 christos _ACPI_CN, /* 0x12 18 DC2 */
759 1.1.1.3 christos _ACPI_CN, /* 0x13 19 DC3 */
760 1.1.1.3 christos _ACPI_CN, /* 0x14 20 DC4 */
761 1.1.1.3 christos _ACPI_CN, /* 0x15 21 NAK */
762 1.1.1.3 christos _ACPI_CN, /* 0x16 22 SYN */
763 1.1.1.3 christos _ACPI_CN, /* 0x17 23 ETB */
764 1.1.1.3 christos _ACPI_CN, /* 0x18 24 CAN */
765 1.1.1.3 christos _ACPI_CN, /* 0x19 25 EM */
766 1.1.1.3 christos _ACPI_CN, /* 0x1A 26 SUB */
767 1.1.1.3 christos _ACPI_CN, /* 0x1B 27 ESC */
768 1.1.1.3 christos _ACPI_CN, /* 0x1C 28 FS */
769 1.1.1.3 christos _ACPI_CN, /* 0x1D 29 GS */
770 1.1.1.3 christos _ACPI_CN, /* 0x1E 30 RS */
771 1.1.1.3 christos _ACPI_CN, /* 0x1F 31 US */
772 1.1.1.3 christos _ACPI_XS|_ACPI_SP, /* 0x20 32 ' ' */
773 1.1.1.3 christos _ACPI_PU, /* 0x21 33 '!' */
774 1.1.1.3 christos _ACPI_PU, /* 0x22 34 '"' */
775 1.1.1.3 christos _ACPI_PU, /* 0x23 35 '#' */
776 1.1.1.3 christos _ACPI_PU, /* 0x24 36 '$' */
777 1.1.1.3 christos _ACPI_PU, /* 0x25 37 '%' */
778 1.1.1.3 christos _ACPI_PU, /* 0x26 38 '&' */
779 1.1.1.3 christos _ACPI_PU, /* 0x27 39 ''' */
780 1.1.1.3 christos _ACPI_PU, /* 0x28 40 '(' */
781 1.1.1.3 christos _ACPI_PU, /* 0x29 41 ')' */
782 1.1.1.3 christos _ACPI_PU, /* 0x2A 42 '*' */
783 1.1.1.3 christos _ACPI_PU, /* 0x2B 43 '+' */
784 1.1.1.3 christos _ACPI_PU, /* 0x2C 44 ',' */
785 1.1.1.3 christos _ACPI_PU, /* 0x2D 45 '-' */
786 1.1.1.3 christos _ACPI_PU, /* 0x2E 46 '.' */
787 1.1.1.3 christos _ACPI_PU, /* 0x2F 47 '/' */
788 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x30 48 '0' */
789 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x31 49 '1' */
790 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x32 50 '2' */
791 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x33 51 '3' */
792 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x34 52 '4' */
793 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x35 53 '5' */
794 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x36 54 '6' */
795 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x37 55 '7' */
796 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x38 56 '8' */
797 1.1.1.3 christos _ACPI_XD|_ACPI_DI, /* 0x39 57 '9' */
798 1.1.1.3 christos _ACPI_PU, /* 0x3A 58 ':' */
799 1.1.1.3 christos _ACPI_PU, /* 0x3B 59 ';' */
800 1.1.1.3 christos _ACPI_PU, /* 0x3C 60 '<' */
801 1.1.1.3 christos _ACPI_PU, /* 0x3D 61 '=' */
802 1.1.1.3 christos _ACPI_PU, /* 0x3E 62 '>' */
803 1.1.1.3 christos _ACPI_PU, /* 0x3F 63 '?' */
804 1.1.1.3 christos _ACPI_PU, /* 0x40 64 '@' */
805 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x41 65 'A' */
806 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x42 66 'B' */
807 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x43 67 'C' */
808 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x44 68 'D' */
809 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x45 69 'E' */
810 1.1.1.3 christos _ACPI_XD|_ACPI_UP, /* 0x46 70 'F' */
811 1.1.1.3 christos _ACPI_UP, /* 0x47 71 'G' */
812 1.1.1.3 christos _ACPI_UP, /* 0x48 72 'H' */
813 1.1.1.3 christos _ACPI_UP, /* 0x49 73 'I' */
814 1.1.1.3 christos _ACPI_UP, /* 0x4A 74 'J' */
815 1.1.1.3 christos _ACPI_UP, /* 0x4B 75 'K' */
816 1.1.1.3 christos _ACPI_UP, /* 0x4C 76 'L' */
817 1.1.1.3 christos _ACPI_UP, /* 0x4D 77 'M' */
818 1.1.1.3 christos _ACPI_UP, /* 0x4E 78 'N' */
819 1.1.1.3 christos _ACPI_UP, /* 0x4F 79 'O' */
820 1.1.1.3 christos _ACPI_UP, /* 0x50 80 'P' */
821 1.1.1.3 christos _ACPI_UP, /* 0x51 81 'Q' */
822 1.1.1.3 christos _ACPI_UP, /* 0x52 82 'R' */
823 1.1.1.3 christos _ACPI_UP, /* 0x53 83 'S' */
824 1.1.1.3 christos _ACPI_UP, /* 0x54 84 'T' */
825 1.1.1.3 christos _ACPI_UP, /* 0x55 85 'U' */
826 1.1.1.3 christos _ACPI_UP, /* 0x56 86 'V' */
827 1.1.1.3 christos _ACPI_UP, /* 0x57 87 'W' */
828 1.1.1.3 christos _ACPI_UP, /* 0x58 88 'X' */
829 1.1.1.3 christos _ACPI_UP, /* 0x59 89 'Y' */
830 1.1.1.3 christos _ACPI_UP, /* 0x5A 90 'Z' */
831 1.1.1.3 christos _ACPI_PU, /* 0x5B 91 '[' */
832 1.1.1.3 christos _ACPI_PU, /* 0x5C 92 '\' */
833 1.1.1.3 christos _ACPI_PU, /* 0x5D 93 ']' */
834 1.1.1.3 christos _ACPI_PU, /* 0x5E 94 '^' */
835 1.1.1.3 christos _ACPI_PU, /* 0x5F 95 '_' */
836 1.1.1.3 christos _ACPI_PU, /* 0x60 96 '`' */
837 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x61 97 'a' */
838 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x62 98 'b' */
839 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x63 99 'c' */
840 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x64 100 'd' */
841 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x65 101 'e' */
842 1.1.1.3 christos _ACPI_XD|_ACPI_LO, /* 0x66 102 'f' */
843 1.1.1.3 christos _ACPI_LO, /* 0x67 103 'g' */
844 1.1.1.3 christos _ACPI_LO, /* 0x68 104 'h' */
845 1.1.1.3 christos _ACPI_LO, /* 0x69 105 'i' */
846 1.1.1.3 christos _ACPI_LO, /* 0x6A 106 'j' */
847 1.1.1.3 christos _ACPI_LO, /* 0x6B 107 'k' */
848 1.1.1.3 christos _ACPI_LO, /* 0x6C 108 'l' */
849 1.1.1.3 christos _ACPI_LO, /* 0x6D 109 'm' */
850 1.1.1.3 christos _ACPI_LO, /* 0x6E 110 'n' */
851 1.1.1.3 christos _ACPI_LO, /* 0x6F 111 'o' */
852 1.1.1.3 christos _ACPI_LO, /* 0x70 112 'p' */
853 1.1.1.3 christos _ACPI_LO, /* 0x71 113 'q' */
854 1.1.1.3 christos _ACPI_LO, /* 0x72 114 'r' */
855 1.1.1.3 christos _ACPI_LO, /* 0x73 115 's' */
856 1.1.1.3 christos _ACPI_LO, /* 0x74 116 't' */
857 1.1.1.3 christos _ACPI_LO, /* 0x75 117 'u' */
858 1.1.1.3 christos _ACPI_LO, /* 0x76 118 'v' */
859 1.1.1.3 christos _ACPI_LO, /* 0x77 119 'w' */
860 1.1.1.3 christos _ACPI_LO, /* 0x78 120 'x' */
861 1.1.1.3 christos _ACPI_LO, /* 0x79 121 'y' */
862 1.1.1.3 christos _ACPI_LO, /* 0x7A 122 'z' */
863 1.1.1.3 christos _ACPI_PU, /* 0x7B 123 '{' */
864 1.1.1.3 christos _ACPI_PU, /* 0x7C 124 '|' */
865 1.1.1.3 christos _ACPI_PU, /* 0x7D 125 '}' */
866 1.1.1.3 christos _ACPI_PU, /* 0x7E 126 '~' */
867 1.1.1.3 christos _ACPI_CN, /* 0x7F 127 DEL */
868 1.1 jruoho
869 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x80 to 0x8F */
870 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x90 to 0x9F */
871 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xA0 to 0xAF */
872 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xB0 to 0xBF */
873 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xC0 to 0xCF */
874 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xD0 to 0xDF */
875 1.1 jruoho 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xE0 to 0xEF */
876 1.1.1.3 christos 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xF0 to 0xFF */
877 1.1.1.3 christos 0 /* 0x100 */
878 1.1 jruoho };
879 1.1 jruoho
880 1.1 jruoho
881 1.1 jruoho #endif /* ACPI_USE_SYSTEM_CLIBRARY */
882