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Commit | Line | Data |
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6a161fa9 | 1 | /* misc.c - definitions of misc functions */ |
2 | /* | |
4b13b216 | 3 | * GRUB -- GRand Unified Bootloader |
1e901a75 | 4 | * Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc. |
6a161fa9 | 5 | * |
5a79f472 | 6 | * GRUB is free software: you can redistribute it and/or modify |
6a161fa9 | 7 | * it under the terms of the GNU General Public License as published by |
5a79f472 | 8 | * the Free Software Foundation, either version 3 of the License, or |
6a161fa9 | 9 | * (at your option) any later version. |
10 | * | |
5a79f472 | 11 | * GRUB is distributed in the hope that it will be useful, |
6a161fa9 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
5a79f472 | 17 | * along with GRUB. If not, see <http://www.gnu.org/licenses/>. |
6a161fa9 | 18 | */ |
19 | ||
4b13b216 | 20 | #include <grub/misc.h> |
21 | #include <grub/err.h> | |
22 | #include <grub/mm.h> | |
6a161fa9 | 23 | #include <stdarg.h> |
4b13b216 | 24 | #include <grub/term.h> |
25 | #include <grub/env.h> | |
4a8572e9 | 26 | #include <grub/i18n.h> |
6a161fa9 | 27 | |
70f1161d | 28 | static int |
29 | grub_iswordseparator (int c) | |
30 | { | |
31 | return (grub_isspace (c) || c == ',' || c == ';' || c == '|' || c == '&'); | |
32 | } | |
33 | ||
4a8572e9 CPE |
34 | /* grub_gettext_dummy is not translating anything. */ |
35 | const char * | |
36 | grub_gettext_dummy (const char *s) | |
37 | { | |
38 | return s; | |
39 | } | |
40 | ||
203ffbfa CPE |
41 | const char* (*grub_gettext) (const char *s) = grub_gettext_dummy; |
42 | ||
6a161fa9 | 43 | void * |
4b13b216 | 44 | grub_memmove (void *dest, const void *src, grub_size_t n) |
6a161fa9 | 45 | { |
46 | char *d = (char *) dest; | |
a5ffe966 | 47 | const char *s = (const char *) src; |
48 | ||
49 | if (d < s) | |
50 | while (n--) | |
51 | *d++ = *s++; | |
52 | else | |
53 | { | |
54 | d += n; | |
55 | s += n; | |
b39f9d20 | 56 | |
a5ffe966 | 57 | while (n--) |
58 | *--d = *--s; | |
59 | } | |
b39f9d20 | 60 | |
6a161fa9 | 61 | return dest; |
62 | } | |
6c688477 | 63 | |
64 | #ifndef APPLE_CC | |
062b24c2 | 65 | void *memmove (void *dest, const void *src, grub_size_t n) |
66 | __attribute__ ((alias ("grub_memmove"))); | |
8c8cc205 | 67 | /* GCC emits references to memcpy() for struct copies etc. */ |
4b13b216 | 68 | void *memcpy (void *dest, const void *src, grub_size_t n) |
69 | __attribute__ ((alias ("grub_memmove"))); | |
6c688477 | 70 | #else |
71 | void *memcpy (void *dest, const void *src, grub_size_t n) | |
72 | { | |
73 | return grub_memmove (dest, src, n); | |
74 | } | |
75 | void *memmove (void *dest, const void *src, grub_size_t n) | |
76 | { | |
77 | return grub_memmove (dest, src, n); | |
78 | } | |
79 | #endif | |
6a161fa9 | 80 | |
a5ffe966 | 81 | char * |
4b13b216 | 82 | grub_strcpy (char *dest, const char *src) |
a5ffe966 | 83 | { |
84 | char *p = dest; | |
85 | ||
86 | while ((*p++ = *src++) != '\0') | |
87 | ; | |
88 | ||
89 | return dest; | |
90 | } | |
91 | ||
a35eed7c | 92 | char * |
4b13b216 | 93 | grub_strncpy (char *dest, const char *src, int c) |
a35eed7c | 94 | { |
95 | char *p = dest; | |
b39f9d20 | 96 | |
e15199cb | 97 | while ((*p++ = *src++) != '\0' && --c) |
98 | ; | |
a35eed7c | 99 | |
100 | return dest; | |
101 | } | |
102 | ||
9a5c1ade | 103 | char * |
4b13b216 | 104 | grub_stpcpy (char *dest, const char *src) |
9a5c1ade | 105 | { |
106 | char *d = dest; | |
107 | const char *s = src; | |
108 | ||
109 | do | |
110 | *d++ = *s; | |
111 | while (*s++ != '\0'); | |
112 | ||
113 | return d - 1; | |
114 | } | |
115 | ||
6a161fa9 | 116 | int |
4b13b216 | 117 | grub_printf (const char *fmt, ...) |
6a161fa9 | 118 | { |
119 | va_list ap; | |
120 | int ret; | |
b39f9d20 | 121 | |
6a161fa9 | 122 | va_start (ap, fmt); |
4b13b216 | 123 | ret = grub_vprintf (fmt, ap); |
6a161fa9 | 124 | va_end (ap); |
125 | ||
126 | return ret; | |
b39f9d20 | 127 | } |
6a161fa9 | 128 | |
e3069ec1 CPE |
129 | int |
130 | grub_printf_ (const char *fmt, ...) | |
131 | { | |
132 | va_list ap; | |
133 | int ret; | |
134 | ||
135 | va_start (ap, fmt); | |
136 | ret = grub_vprintf (_(fmt), ap); | |
137 | va_end (ap); | |
138 | ||
139 | return ret; | |
140 | } | |
141 | ||
c4a3e41a CPE |
142 | int |
143 | grub_puts (const char *s) | |
144 | { | |
145 | while (*s) | |
146 | { | |
147 | grub_putchar (*s); | |
148 | s++; | |
149 | } | |
150 | grub_putchar ('\n'); | |
151 | ||
152 | return 1; /* Cannot fail. */ | |
153 | } | |
154 | ||
155 | int | |
156 | grub_puts_ (const char *s) | |
157 | { | |
158 | return grub_puts (_(s)); | |
159 | } | |
160 | ||
6c688477 | 161 | #if defined (APPLE_CC) && ! defined (GRUB_UTIL) |
162 | int | |
163 | grub_err_printf (const char *fmt, ...) | |
164 | { | |
165 | va_list ap; | |
166 | int ret; | |
b39f9d20 | 167 | |
6c688477 | 168 | va_start (ap, fmt); |
169 | ret = grub_vprintf (fmt, ap); | |
170 | va_end (ap); | |
b39f9d20 | 171 | |
6c688477 | 172 | return ret; |
b39f9d20 | 173 | } |
6c688477 | 174 | #endif |
175 | ||
176 | #if ! defined (APPLE_CC) && ! defined (GRUB_UTIL) | |
b86408f8 | 177 | int grub_err_printf (const char *fmt, ...) |
178 | __attribute__ ((alias("grub_printf"))); | |
179 | #endif | |
180 | ||
708b345f | 181 | void |
9cacaa17 | 182 | grub_real_dprintf (const char *file, const int line, const char *condition, |
183 | const char *fmt, ...) | |
708b345f | 184 | { |
185 | va_list args; | |
186 | const char *debug = grub_env_get ("debug"); | |
b39f9d20 | 187 | |
708b345f | 188 | if (! debug) |
189 | return; | |
b39f9d20 | 190 | |
708b345f | 191 | if (grub_strword (debug, "all") || grub_strword (debug, condition)) |
192 | { | |
9cacaa17 | 193 | grub_printf ("%s:%d: ", file, line); |
708b345f | 194 | va_start (args, fmt); |
195 | grub_vprintf (fmt, args); | |
196 | va_end (args); | |
197 | } | |
198 | } | |
199 | ||
6a161fa9 | 200 | int |
4b13b216 | 201 | grub_vprintf (const char *fmt, va_list args) |
6a161fa9 | 202 | { |
4d4e372e | 203 | int ret; |
204 | ||
205 | ret = grub_vsprintf (0, fmt, args); | |
206 | grub_refresh (); | |
207 | return ret; | |
6a161fa9 | 208 | } |
209 | ||
210 | int | |
4b13b216 | 211 | grub_memcmp (const void *s1, const void *s2, grub_size_t n) |
6a161fa9 | 212 | { |
213 | const char *t1 = s1; | |
214 | const char *t2 = s2; | |
b39f9d20 | 215 | |
6a161fa9 | 216 | while (n--) |
217 | { | |
218 | if (*t1 != *t2) | |
219 | return (int) *t1 - (int) *t2; | |
220 | ||
221 | t1++; | |
222 | t2++; | |
223 | } | |
224 | ||
225 | return 0; | |
226 | } | |
6c688477 | 227 | #ifndef APPLE_CC |
21c8cbb1 | 228 | int memcmp (const void *s1, const void *s2, grub_size_t n) |
062b24c2 | 229 | __attribute__ ((alias ("grub_memcmp"))); |
6c688477 | 230 | #endif |
6a161fa9 | 231 | |
232 | int | |
4b13b216 | 233 | grub_strcmp (const char *s1, const char *s2) |
6a161fa9 | 234 | { |
235 | while (*s1 && *s2) | |
236 | { | |
237 | if (*s1 != *s2) | |
1806b56e | 238 | break; |
b39f9d20 | 239 | |
6a161fa9 | 240 | s1++; |
241 | s2++; | |
242 | } | |
243 | ||
244 | return (int) *s1 - (int) *s2; | |
245 | } | |
246 | ||
a35eed7c | 247 | int |
8de3495c | 248 | grub_strncmp (const char *s1, const char *s2, grub_size_t n) |
a35eed7c | 249 | { |
8de3495c | 250 | if (n == 0) |
251 | return 0; | |
b39f9d20 | 252 | |
8de3495c | 253 | while (*s1 && *s2 && --n) |
a35eed7c | 254 | { |
255 | if (*s1 != *s2) | |
1806b56e | 256 | break; |
b39f9d20 | 257 | |
a35eed7c | 258 | s1++; |
259 | s2++; | |
a35eed7c | 260 | } |
261 | ||
262 | return (int) *s1 - (int) *s2; | |
263 | } | |
264 | ||
6a161fa9 | 265 | char * |
4b13b216 | 266 | grub_strchr (const char *s, int c) |
6a161fa9 | 267 | { |
a50569e1 | 268 | do |
6a161fa9 | 269 | { |
270 | if (*s == c) | |
271 | return (char *) s; | |
6a161fa9 | 272 | } |
a50569e1 | 273 | while (*s++); |
6a161fa9 | 274 | |
275 | return 0; | |
276 | } | |
277 | ||
278 | char * | |
4b13b216 | 279 | grub_strrchr (const char *s, int c) |
6a161fa9 | 280 | { |
a50569e1 | 281 | char *p = NULL; |
6a161fa9 | 282 | |
a50569e1 | 283 | do |
6a161fa9 | 284 | { |
285 | if (*s == c) | |
286 | p = (char *) s; | |
6a161fa9 | 287 | } |
a50569e1 | 288 | while (*s++); |
6a161fa9 | 289 | |
290 | return p; | |
291 | } | |
292 | ||
2b002173 | 293 | /* Copied from gnulib. |
294 | Written by Bruno Haible <bruno@clisp.org>, 2005. */ | |
295 | char * | |
296 | grub_strstr (const char *haystack, const char *needle) | |
297 | { | |
298 | /* Be careful not to look at the entire extent of haystack or needle | |
299 | until needed. This is useful because of these two cases: | |
300 | - haystack may be very long, and a match of needle found early, | |
301 | - needle may be very long, and not even a short initial segment of | |
302 | needle may be found in haystack. */ | |
303 | if (*needle != '\0') | |
304 | { | |
305 | /* Speed up the following searches of needle by caching its first | |
306 | character. */ | |
307 | char b = *needle++; | |
b39f9d20 | 308 | |
2b002173 | 309 | for (;; haystack++) |
310 | { | |
311 | if (*haystack == '\0') | |
312 | /* No match. */ | |
313 | return NULL; | |
314 | if (*haystack == b) | |
315 | /* The first character matches. */ | |
316 | { | |
317 | const char *rhaystack = haystack + 1; | |
318 | const char *rneedle = needle; | |
319 | ||
320 | for (;; rhaystack++, rneedle++) | |
321 | { | |
322 | if (*rneedle == '\0') | |
323 | /* Found a match. */ | |
324 | return (char *) haystack; | |
325 | if (*rhaystack == '\0') | |
326 | /* No match. */ | |
327 | return NULL; | |
328 | if (*rhaystack != *rneedle) | |
329 | /* Nothing in this round. */ | |
330 | break; | |
331 | } | |
332 | } | |
333 | } | |
334 | } | |
335 | else | |
336 | return (char *) haystack; | |
337 | } | |
338 | ||
708b345f | 339 | int |
340 | grub_strword (const char *haystack, const char *needle) | |
341 | { | |
342 | const char *n_pos = needle; | |
343 | ||
344 | while (grub_iswordseparator (*haystack)) | |
345 | haystack++; | |
346 | ||
347 | while (*haystack) | |
348 | { | |
349 | /* Crawl both the needle and the haystack word we're on. */ | |
350 | while(*haystack && !grub_iswordseparator (*haystack) | |
351 | && *haystack == *n_pos) | |
352 | { | |
353 | haystack++; | |
354 | n_pos++; | |
355 | } | |
356 | ||
357 | /* If we reached the end of both words at the same time, the word | |
358 | is found. If not, eat everything in the haystack that isn't the | |
359 | next word (or the end of string) and "reset" the needle. */ | |
360 | if ( (!*haystack || grub_iswordseparator (*haystack)) | |
361 | && (!*n_pos || grub_iswordseparator (*n_pos))) | |
362 | return 1; | |
363 | else | |
364 | { | |
365 | n_pos = needle; | |
366 | while (*haystack && !grub_iswordseparator (*haystack)) | |
367 | haystack++; | |
368 | while (grub_iswordseparator (*haystack)) | |
369 | haystack++; | |
370 | } | |
371 | } | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
6a161fa9 | 376 | int |
4b13b216 | 377 | grub_isspace (int c) |
6a161fa9 | 378 | { |
379 | return (c == '\n' || c == '\r' || c == ' ' || c == '\t'); | |
380 | } | |
381 | ||
382 | int | |
4b13b216 | 383 | grub_isprint (int c) |
6a161fa9 | 384 | { |
385 | return (c >= ' ' && c <= '~'); | |
386 | } | |
387 | ||
524a1e6a | 388 | |
6a161fa9 | 389 | unsigned long |
4b13b216 | 390 | grub_strtoul (const char *str, char **end, int base) |
6a161fa9 | 391 | { |
524a1e6a | 392 | unsigned long long num; |
393 | ||
394 | num = grub_strtoull (str, end, base); | |
395 | if (num > ~0UL) | |
396 | { | |
397 | grub_error (GRUB_ERR_OUT_OF_RANGE, "overflow is detected"); | |
398 | return ~0UL; | |
399 | } | |
400 | ||
401 | return (unsigned long) num; | |
402 | } | |
403 | ||
404 | unsigned long long | |
405 | grub_strtoull (const char *str, char **end, int base) | |
406 | { | |
407 | unsigned long long num = 0; | |
6a161fa9 | 408 | int found = 0; |
b39f9d20 | 409 | |
6a161fa9 | 410 | /* Skip white spaces. */ |
4b13b216 | 411 | while (*str && grub_isspace (*str)) |
6a161fa9 | 412 | str++; |
b39f9d20 | 413 | |
6a161fa9 | 414 | /* Guess the base, if not specified. The prefix `0x' means 16, and |
415 | the prefix `0' means 8. */ | |
8cc50345 | 416 | if (str[0] == '0') |
6a161fa9 | 417 | { |
418 | if (str[1] == 'x') | |
419 | { | |
420 | if (base == 0 || base == 16) | |
421 | { | |
422 | base = 16; | |
423 | str += 2; | |
424 | } | |
425 | } | |
8cc50345 | 426 | else if (base == 0 && str[1] >= '0' && str[1] <= '7') |
6a161fa9 | 427 | base = 8; |
428 | } | |
b39f9d20 | 429 | |
6a161fa9 | 430 | if (base == 0) |
431 | base = 10; | |
432 | ||
433 | while (*str) | |
434 | { | |
435 | unsigned long digit; | |
436 | ||
4b13b216 | 437 | digit = grub_tolower (*str) - '0'; |
6a161fa9 | 438 | if (digit > 9) |
439 | { | |
440 | digit += '0' - 'a' + 10; | |
441 | if (digit >= (unsigned long) base) | |
442 | break; | |
443 | } | |
444 | ||
445 | found = 1; | |
524a1e6a | 446 | |
447 | /* NUM * BASE + DIGIT > ~0ULL */ | |
448 | if (num > grub_divmod64 (~0ULL - digit, base, 0)) | |
6a161fa9 | 449 | { |
4b13b216 | 450 | grub_error (GRUB_ERR_OUT_OF_RANGE, "overflow is detected"); |
524a1e6a | 451 | return ~0ULL; |
6a161fa9 | 452 | } |
453 | ||
e15199cb | 454 | num = num * base + digit; |
6a161fa9 | 455 | str++; |
456 | } | |
457 | ||
458 | if (! found) | |
459 | { | |
4b13b216 | 460 | grub_error (GRUB_ERR_BAD_NUMBER, "unrecognized number"); |
6a161fa9 | 461 | return 0; |
462 | } | |
b39f9d20 | 463 | |
6a161fa9 | 464 | if (end) |
465 | *end = (char *) str; | |
466 | ||
467 | return num; | |
468 | } | |
469 | ||
470 | char * | |
4b13b216 | 471 | grub_strdup (const char *s) |
6a161fa9 | 472 | { |
4b13b216 | 473 | grub_size_t len; |
6a161fa9 | 474 | char *p; |
b39f9d20 | 475 | |
4b13b216 | 476 | len = grub_strlen (s) + 1; |
477 | p = (char *) grub_malloc (len); | |
5aded270 | 478 | if (! p) |
479 | return 0; | |
480 | ||
4b13b216 | 481 | return grub_memcpy (p, s, len); |
5aded270 | 482 | } |
483 | ||
484 | char * | |
4b13b216 | 485 | grub_strndup (const char *s, grub_size_t n) |
5aded270 | 486 | { |
e3741a27 | 487 | grub_size_t len; |
488 | char *p; | |
b39f9d20 | 489 | |
e3741a27 | 490 | len = grub_strlen (s); |
491 | if (len > n) | |
492 | len = n; | |
493 | p = (char *) grub_malloc (len + 1); | |
6a161fa9 | 494 | if (! p) |
495 | return 0; | |
b39f9d20 | 496 | |
e3741a27 | 497 | grub_memcpy (p, s, len); |
498 | p[len] = '\0'; | |
499 | return p; | |
6a161fa9 | 500 | } |
501 | ||
502 | void * | |
4b13b216 | 503 | grub_memset (void *s, int c, grub_size_t n) |
6a161fa9 | 504 | { |
505 | unsigned char *p = (unsigned char *) s; | |
506 | ||
507 | while (n--) | |
508 | *p++ = (unsigned char) c; | |
509 | ||
510 | return s; | |
511 | } | |
6c688477 | 512 | #ifndef APPLE_CC |
062b24c2 | 513 | void *memset (void *s, int c, grub_size_t n) |
514 | __attribute__ ((alias ("grub_memset"))); | |
6c688477 | 515 | #endif |
6a161fa9 | 516 | |
4b13b216 | 517 | grub_size_t |
518 | grub_strlen (const char *s) | |
6a161fa9 | 519 | { |
a5ffe966 | 520 | const char *p = s; |
6a161fa9 | 521 | |
522 | while (*p) | |
523 | p++; | |
524 | ||
525 | return p - s; | |
526 | } | |
527 | ||
528 | static inline void | |
4b13b216 | 529 | grub_reverse (char *str) |
6a161fa9 | 530 | { |
4b13b216 | 531 | char *p = str + grub_strlen (str) - 1; |
6a161fa9 | 532 | |
533 | while (str < p) | |
534 | { | |
535 | char tmp; | |
536 | ||
537 | tmp = *str; | |
538 | *str = *p; | |
539 | *p = tmp; | |
540 | str++; | |
541 | p--; | |
542 | } | |
543 | } | |
544 | ||
524a1e6a | 545 | /* Divide N by D, return the quotient, and store the remainder in *R. */ |
546 | grub_uint64_t | |
547 | grub_divmod64 (grub_uint64_t n, grub_uint32_t d, grub_uint32_t *r) | |
548 | { | |
549 | /* This algorithm is typically implemented by hardware. The idea | |
550 | is to get the highest bit in N, 64 times, by keeping | |
551 | upper(N * 2^i) = upper((Q * 10 + M) * 2^i), where upper | |
552 | represents the high 64 bits in 128-bits space. */ | |
553 | unsigned bits = 64; | |
554 | unsigned long long q = 0; | |
555 | unsigned m = 0; | |
556 | ||
cc85c3c3 | 557 | /* Skip the slow computation if 32-bit arithmetic is possible. */ |
524a1e6a | 558 | if (n < 0xffffffff) |
559 | { | |
560 | if (r) | |
561 | *r = ((grub_uint32_t) n) % d; | |
562 | ||
563 | return ((grub_uint32_t) n) / d; | |
564 | } | |
b39f9d20 | 565 | |
524a1e6a | 566 | while (bits--) |
567 | { | |
568 | m <<= 1; | |
b39f9d20 | 569 | |
524a1e6a | 570 | if (n & (1ULL << 63)) |
571 | m |= 1; | |
b39f9d20 | 572 | |
524a1e6a | 573 | q <<= 1; |
574 | n <<= 1; | |
b39f9d20 | 575 | |
524a1e6a | 576 | if (m >= d) |
577 | { | |
578 | q |= 1; | |
579 | m -= d; | |
580 | } | |
581 | } | |
582 | ||
583 | if (r) | |
584 | *r = m; | |
b39f9d20 | 585 | |
524a1e6a | 586 | return q; |
587 | } | |
588 | ||
970d3b8a | 589 | /* Convert a long long value to a string. This function avoids 64-bit |
590 | modular arithmetic or divisions. */ | |
591 | static char * | |
592 | grub_lltoa (char *str, int c, unsigned long long n) | |
593 | { | |
594 | unsigned base = (c == 'x') ? 16 : 10; | |
595 | char *p; | |
b39f9d20 | 596 | |
970d3b8a | 597 | if ((long long) n < 0 && c == 'd') |
598 | { | |
599 | n = (unsigned long long) (-((long long) n)); | |
600 | *str++ = '-'; | |
601 | } | |
602 | ||
603 | p = str; | |
604 | ||
605 | if (base == 16) | |
606 | do | |
607 | { | |
608 | unsigned d = (unsigned) (n & 0xf); | |
609 | *p++ = (d > 9) ? d + 'a' - 10 : d + '0'; | |
610 | } | |
611 | while (n >>= 4); | |
612 | else | |
613 | /* BASE == 10 */ | |
614 | do | |
615 | { | |
524a1e6a | 616 | unsigned m; |
b39f9d20 | 617 | |
524a1e6a | 618 | n = grub_divmod64 (n, 10, &m); |
49986a9f | 619 | *p++ = m + '0'; |
970d3b8a | 620 | } |
621 | while (n); | |
b39f9d20 | 622 | |
970d3b8a | 623 | *p = 0; |
624 | ||
625 | grub_reverse (str); | |
626 | return p; | |
627 | } | |
628 | ||
6a161fa9 | 629 | int |
4b13b216 | 630 | grub_vsprintf (char *str, const char *fmt, va_list args) |
6a161fa9 | 631 | { |
632 | char c; | |
633 | int count = 0; | |
18d9c7cd | 634 | auto void write_char (unsigned char ch); |
6a161fa9 | 635 | auto void write_str (const char *s); |
db1771cf | 636 | auto void write_fill (const char ch, int n); |
b39f9d20 | 637 | |
18d9c7cd | 638 | void write_char (unsigned char ch) |
6a161fa9 | 639 | { |
640 | if (str) | |
a5ffe966 | 641 | *str++ = ch; |
6a161fa9 | 642 | else |
4b13b216 | 643 | grub_putchar (ch); |
6a161fa9 | 644 | |
645 | count++; | |
646 | } | |
647 | ||
648 | void write_str (const char *s) | |
649 | { | |
650 | while (*s) | |
651 | write_char (*s++); | |
652 | } | |
db1771cf | 653 | |
654 | void write_fill (const char ch, int n) | |
655 | { | |
656 | int i; | |
657 | for (i = 0; i < n; i++) | |
658 | write_char (ch); | |
659 | } | |
b39f9d20 | 660 | |
6a161fa9 | 661 | while ((c = *fmt++) != 0) |
662 | { | |
663 | if (c != '%') | |
664 | write_char (c); | |
665 | else | |
666 | { | |
970d3b8a | 667 | char tmp[32]; |
6a161fa9 | 668 | char *p; |
db1771cf | 669 | unsigned int format1 = 0; |
d31c24f1 | 670 | unsigned int format2 = ~ 0U; |
db1771cf | 671 | char zerofill = ' '; |
672 | int rightfill = 0; | |
6a161fa9 | 673 | int n; |
e75d76e1 | 674 | int longfmt = 0; |
970d3b8a | 675 | int longlongfmt = 0; |
5999d619 | 676 | int unsig = 0; |
e75d76e1 | 677 | |
db1771cf | 678 | if (*fmt && *fmt =='-') |
679 | { | |
680 | rightfill = 1; | |
681 | fmt++; | |
682 | } | |
e75d76e1 | 683 | |
db1771cf | 684 | p = (char *) fmt; |
685 | /* Read formatting parameters. */ | |
4b13b216 | 686 | while (*p && grub_isdigit (*p)) |
db1771cf | 687 | p++; |
688 | ||
689 | if (p > fmt) | |
690 | { | |
25fe6f03 | 691 | char s[p - fmt + 1]; |
4b13b216 | 692 | grub_strncpy (s, fmt, p - fmt); |
25fe6f03 | 693 | s[p - fmt] = 0; |
db1771cf | 694 | if (s[0] == '0') |
695 | zerofill = '0'; | |
4b13b216 | 696 | format1 = grub_strtoul (s, 0, 10); |
db1771cf | 697 | fmt = p; |
d31c24f1 | 698 | } |
699 | ||
700 | if (*p && *p == '.') | |
701 | { | |
702 | p++; | |
703 | fmt++; | |
704 | while (*p && grub_isdigit (*p)) | |
705 | p++; | |
706 | ||
707 | if (p > fmt) | |
db1771cf | 708 | { |
d31c24f1 | 709 | char fstr[p - fmt + 1]; |
710 | grub_strncpy (fstr, fmt, p - fmt); | |
711 | fstr[p - fmt] = 0; | |
712 | format2 = grub_strtoul (fstr, 0, 10); | |
713 | fmt = p; | |
db1771cf | 714 | } |
715 | } | |
716 | ||
717 | c = *fmt++; | |
e75d76e1 | 718 | if (c == 'l') |
719 | { | |
720 | longfmt = 1; | |
721 | c = *fmt++; | |
970d3b8a | 722 | if (c == 'l') |
723 | { | |
724 | longlongfmt = 1; | |
725 | c = *fmt++; | |
726 | } | |
e75d76e1 | 727 | } |
db1771cf | 728 | |
6a161fa9 | 729 | switch (c) |
730 | { | |
731 | case 'p': | |
732 | write_str ("0x"); | |
733 | c = 'x'; | |
d1bc1b73 | 734 | longlongfmt |= (sizeof (void *) == sizeof (long long)); |
5999d619 | 735 | /* Fall through. */ |
6a161fa9 | 736 | case 'x': |
737 | case 'u': | |
5999d619 | 738 | unsig = 1; |
739 | /* Fall through. */ | |
6a161fa9 | 740 | case 'd': |
970d3b8a | 741 | if (longlongfmt) |
742 | { | |
743 | long long ll; | |
744 | ||
745 | ll = va_arg (args, long long); | |
746 | grub_lltoa (tmp, c, ll); | |
747 | } | |
5999d619 | 748 | else if (longfmt && unsig) |
749 | { | |
750 | unsigned long l = va_arg (args, unsigned long); | |
751 | grub_lltoa (tmp, c, l); | |
752 | } | |
ed3d2bc2 | 753 | else if (longfmt) |
754 | { | |
755 | long l = va_arg (args, long); | |
5999d619 | 756 | grub_lltoa (tmp, c, l); |
757 | } | |
758 | else if (unsig) | |
759 | { | |
760 | unsigned u = va_arg (args, unsigned); | |
761 | grub_lltoa (tmp, c, u); | |
ed3d2bc2 | 762 | } |
e75d76e1 | 763 | else |
970d3b8a | 764 | { |
ed3d2bc2 | 765 | n = va_arg (args, int); |
5999d619 | 766 | grub_lltoa (tmp, c, n); |
970d3b8a | 767 | } |
768 | if (! rightfill && grub_strlen (tmp) < format1) | |
4b13b216 | 769 | write_fill (zerofill, format1 - grub_strlen (tmp)); |
6a161fa9 | 770 | write_str (tmp); |
4b13b216 | 771 | if (rightfill && grub_strlen (tmp) < format1) |
772 | write_fill (zerofill, format1 - grub_strlen (tmp)); | |
6a161fa9 | 773 | break; |
b39f9d20 | 774 | |
6a161fa9 | 775 | case 'c': |
776 | n = va_arg (args, int); | |
18d9c7cd | 777 | write_char (n & 0xff); |
778 | break; | |
779 | ||
780 | case 'C': | |
781 | { | |
4b13b216 | 782 | grub_uint32_t code = va_arg (args, grub_uint32_t); |
18d9c7cd | 783 | int shift; |
784 | unsigned mask; | |
b39f9d20 | 785 | |
18d9c7cd | 786 | if (code <= 0x7f) |
787 | { | |
788 | shift = 0; | |
789 | mask = 0; | |
790 | } | |
791 | else if (code <= 0x7ff) | |
792 | { | |
793 | shift = 6; | |
794 | mask = 0xc0; | |
795 | } | |
796 | else if (code <= 0xffff) | |
797 | { | |
798 | shift = 12; | |
799 | mask = 0xe0; | |
800 | } | |
801 | else if (code <= 0x1fffff) | |
802 | { | |
803 | shift = 18; | |
804 | mask = 0xf0; | |
805 | } | |
806 | else if (code <= 0x3ffffff) | |
807 | { | |
808 | shift = 24; | |
809 | mask = 0xf8; | |
810 | } | |
811 | else if (code <= 0x7fffffff) | |
812 | { | |
813 | shift = 30; | |
814 | mask = 0xfc; | |
815 | } | |
816 | else | |
817 | { | |
818 | code = '?'; | |
819 | shift = 0; | |
820 | mask = 0; | |
821 | } | |
822 | ||
823 | write_char (mask | (code >> shift)); | |
b39f9d20 | 824 | |
18d9c7cd | 825 | for (shift -= 6; shift >= 0; shift -= 6) |
826 | write_char (0x80 | (0x3f & (code >> shift))); | |
827 | } | |
6a161fa9 | 828 | break; |
829 | ||
830 | case 's': | |
831 | p = va_arg (args, char *); | |
832 | if (p) | |
db1771cf | 833 | { |
d31c24f1 | 834 | grub_size_t len = 0; |
835 | while (len < format2 && p[len]) | |
836 | len++; | |
837 | ||
838 | if (!rightfill && len < format1) | |
839 | write_fill (zerofill, format1 - len); | |
840 | ||
841 | grub_size_t i; | |
842 | for (i = 0; i < len; i++) | |
843 | write_char (*p++); | |
844 | ||
845 | if (rightfill && len < format1) | |
846 | write_fill (zerofill, format1 - len); | |
db1771cf | 847 | } |
6a161fa9 | 848 | else |
849 | write_str ("(null)"); | |
b39f9d20 | 850 | |
6a161fa9 | 851 | break; |
852 | ||
853 | default: | |
854 | write_char (c); | |
855 | break; | |
856 | } | |
857 | } | |
858 | } | |
859 | ||
860 | if (str) | |
861 | *str = '\0'; | |
1f7315a3 | 862 | |
863 | if (count && !str) | |
4b13b216 | 864 | grub_refresh (); |
b39f9d20 | 865 | |
6a161fa9 | 866 | return count; |
867 | } | |
868 | ||
869 | int | |
4b13b216 | 870 | grub_sprintf (char *str, const char *fmt, ...) |
6a161fa9 | 871 | { |
872 | va_list ap; | |
873 | int ret; | |
b39f9d20 | 874 | |
6a161fa9 | 875 | va_start (ap, fmt); |
4b13b216 | 876 | ret = grub_vsprintf (str, fmt, ap); |
6a161fa9 | 877 | va_end (ap); |
878 | ||
879 | return ret; | |
880 | } | |
db1771cf | 881 | |
1e901a75 | 882 | /* Convert a (possibly null-terminated) UTF-8 string of at most SRCSIZE |
883 | bytes (if SRCSIZE is -1, it is ignored) in length to a UCS-4 string. | |
884 | Return the number of characters converted. DEST must be able to hold | |
2e713831 | 885 | at least DESTSIZE characters. |
1e901a75 | 886 | If SRCEND is not NULL, then *SRCEND is set to the next byte after the |
887 | last byte used in SRC. */ | |
2e713831 | 888 | grub_size_t |
1e901a75 | 889 | grub_utf8_to_ucs4 (grub_uint32_t *dest, grub_size_t destsize, |
890 | const grub_uint8_t *src, grub_size_t srcsize, | |
891 | const grub_uint8_t **srcend) | |
ef095434 | 892 | { |
893 | grub_uint32_t *p = dest; | |
894 | int count = 0; | |
895 | grub_uint32_t code = 0; | |
b39f9d20 | 896 | |
1e901a75 | 897 | if (srcend) |
898 | *srcend = src; | |
899 | ||
900 | while (srcsize && destsize) | |
ef095434 | 901 | { |
902 | grub_uint32_t c = *src++; | |
1e901a75 | 903 | if (srcsize != (grub_size_t)-1) |
904 | srcsize--; | |
ef095434 | 905 | if (count) |
906 | { | |
907 | if ((c & 0xc0) != 0x80) | |
908 | { | |
909 | /* invalid */ | |
2e713831 VS |
910 | code = '?'; |
911 | count = 0; | |
ef095434 | 912 | } |
913 | else | |
914 | { | |
915 | code <<= 6; | |
916 | code |= (c & 0x3f); | |
917 | count--; | |
918 | } | |
919 | } | |
920 | else | |
921 | { | |
1e901a75 | 922 | if (c == 0) |
923 | break; | |
b39f9d20 | 924 | |
ef095434 | 925 | if ((c & 0x80) == 0x00) |
926 | code = c; | |
927 | else if ((c & 0xe0) == 0xc0) | |
928 | { | |
929 | count = 1; | |
930 | code = c & 0x1f; | |
931 | } | |
932 | else if ((c & 0xf0) == 0xe0) | |
933 | { | |
934 | count = 2; | |
935 | code = c & 0x0f; | |
936 | } | |
937 | else if ((c & 0xf8) == 0xf0) | |
938 | { | |
939 | count = 3; | |
940 | code = c & 0x07; | |
941 | } | |
942 | else if ((c & 0xfc) == 0xf8) | |
943 | { | |
944 | count = 4; | |
945 | code = c & 0x03; | |
946 | } | |
947 | else if ((c & 0xfe) == 0xfc) | |
948 | { | |
949 | count = 5; | |
950 | code = c & 0x01; | |
951 | } | |
952 | else | |
2e713831 VS |
953 | { |
954 | /* invalid */ | |
955 | code = '?'; | |
956 | count = 0; | |
957 | } | |
ef095434 | 958 | } |
959 | ||
960 | if (count == 0) | |
1e901a75 | 961 | { |
962 | *p++ = code; | |
963 | destsize--; | |
964 | } | |
ef095434 | 965 | } |
966 | ||
1e901a75 | 967 | if (srcend) |
968 | *srcend = src; | |
ef095434 | 969 | return p - dest; |
970 | } | |
9cacaa17 | 971 | |
972 | /* Abort GRUB. This function does not return. */ | |
973 | void | |
974 | grub_abort (void) | |
975 | { | |
f4c623e1 VS |
976 | grub_printf ("\nAborted."); |
977 | ||
978 | if (grub_term_get_current_input ()) | |
9cacaa17 | 979 | { |
f4c623e1 VS |
980 | grub_printf (" Press any key to exit."); |
981 | grub_getkey (); | |
9cacaa17 | 982 | } |
2965c7cc | 983 | |
9cacaa17 | 984 | grub_exit (); |
985 | } | |
6c688477 | 986 | |
987 | #ifndef APPLE_CC | |
71538dff | 988 | /* GCC emits references to abort(). */ |
989 | void abort (void) __attribute__ ((alias ("grub_abort"))); | |
6c688477 | 990 | #endif |
9035dce4 | 991 | |
992 | #ifdef NEED_ENABLE_EXECUTE_STACK | |
993 | /* Some gcc versions generate a call to this function | |
994 | in trampolines for nested functions. */ | |
af1f4f55 | 995 | void __enable_execute_stack (void *addr __attribute__ ((unused))) |
9035dce4 | 996 | { |
997 | } | |
998 | #endif | |
999 |