Root/
1 | /* |
2 | * linux/lib/vsprintf.c |
3 | * |
4 | * Copyright (C) 1991, 1992 Linus Torvalds |
5 | */ |
6 | |
7 | /* vsprintf.c -- Lars Wirzenius & Linus Torvalds. */ |
8 | /* |
9 | * Wirzenius wrote this portably, Torvalds fucked it up :-) |
10 | */ |
11 | |
12 | /* |
13 | * Fri Jul 13 2001 Crutcher Dunnavant <crutcher+kernel@datastacks.com> |
14 | * - changed to provide snprintf and vsnprintf functions |
15 | * So Feb 1 16:51:32 CET 2004 Juergen Quade <quade@hsnr.de> |
16 | * - scnprintf and vscnprintf |
17 | */ |
18 | |
19 | #include <stdarg.h> |
20 | #include <linux/module.h> |
21 | #include <linux/types.h> |
22 | #include <linux/string.h> |
23 | #include <linux/ctype.h> |
24 | #include <linux/kernel.h> |
25 | #include <linux/kallsyms.h> |
26 | #include <linux/uaccess.h> |
27 | #include <linux/ioport.h> |
28 | #include <net/addrconf.h> |
29 | |
30 | #include <asm/page.h> /* for PAGE_SIZE */ |
31 | #include <asm/div64.h> |
32 | #include <asm/sections.h> /* for dereference_function_descriptor() */ |
33 | |
34 | /* Works only for digits and letters, but small and fast */ |
35 | #define TOLOWER(x) ((x) | 0x20) |
36 | |
37 | static unsigned int simple_guess_base(const char *cp) |
38 | { |
39 | if (cp[0] == '0') { |
40 | if (TOLOWER(cp[1]) == 'x' && isxdigit(cp[2])) |
41 | return 16; |
42 | else |
43 | return 8; |
44 | } else { |
45 | return 10; |
46 | } |
47 | } |
48 | |
49 | /** |
50 | * simple_strtoul - convert a string to an unsigned long |
51 | * @cp: The start of the string |
52 | * @endp: A pointer to the end of the parsed string will be placed here |
53 | * @base: The number base to use |
54 | */ |
55 | unsigned long simple_strtoul(const char *cp, char **endp, unsigned int base) |
56 | { |
57 | unsigned long result = 0; |
58 | |
59 | if (!base) |
60 | base = simple_guess_base(cp); |
61 | |
62 | if (base == 16 && cp[0] == '0' && TOLOWER(cp[1]) == 'x') |
63 | cp += 2; |
64 | |
65 | while (isxdigit(*cp)) { |
66 | unsigned int value; |
67 | |
68 | value = isdigit(*cp) ? *cp - '0' : TOLOWER(*cp) - 'a' + 10; |
69 | if (value >= base) |
70 | break; |
71 | result = result * base + value; |
72 | cp++; |
73 | } |
74 | |
75 | if (endp) |
76 | *endp = (char *)cp; |
77 | return result; |
78 | } |
79 | EXPORT_SYMBOL(simple_strtoul); |
80 | |
81 | /** |
82 | * simple_strtol - convert a string to a signed long |
83 | * @cp: The start of the string |
84 | * @endp: A pointer to the end of the parsed string will be placed here |
85 | * @base: The number base to use |
86 | */ |
87 | long simple_strtol(const char *cp, char **endp, unsigned int base) |
88 | { |
89 | if(*cp == '-') |
90 | return -simple_strtoul(cp + 1, endp, base); |
91 | return simple_strtoul(cp, endp, base); |
92 | } |
93 | EXPORT_SYMBOL(simple_strtol); |
94 | |
95 | /** |
96 | * simple_strtoull - convert a string to an unsigned long long |
97 | * @cp: The start of the string |
98 | * @endp: A pointer to the end of the parsed string will be placed here |
99 | * @base: The number base to use |
100 | */ |
101 | unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base) |
102 | { |
103 | unsigned long long result = 0; |
104 | |
105 | if (!base) |
106 | base = simple_guess_base(cp); |
107 | |
108 | if (base == 16 && cp[0] == '0' && TOLOWER(cp[1]) == 'x') |
109 | cp += 2; |
110 | |
111 | while (isxdigit(*cp)) { |
112 | unsigned int value; |
113 | |
114 | value = isdigit(*cp) ? *cp - '0' : TOLOWER(*cp) - 'a' + 10; |
115 | if (value >= base) |
116 | break; |
117 | result = result * base + value; |
118 | cp++; |
119 | } |
120 | |
121 | if (endp) |
122 | *endp = (char *)cp; |
123 | return result; |
124 | } |
125 | EXPORT_SYMBOL(simple_strtoull); |
126 | |
127 | /** |
128 | * simple_strtoll - convert a string to a signed long long |
129 | * @cp: The start of the string |
130 | * @endp: A pointer to the end of the parsed string will be placed here |
131 | * @base: The number base to use |
132 | */ |
133 | long long simple_strtoll(const char *cp, char **endp, unsigned int base) |
134 | { |
135 | if(*cp=='-') |
136 | return -simple_strtoull(cp + 1, endp, base); |
137 | return simple_strtoull(cp, endp, base); |
138 | } |
139 | |
140 | /** |
141 | * strict_strtoul - convert a string to an unsigned long strictly |
142 | * @cp: The string to be converted |
143 | * @base: The number base to use |
144 | * @res: The converted result value |
145 | * |
146 | * strict_strtoul converts a string to an unsigned long only if the |
147 | * string is really an unsigned long string, any string containing |
148 | * any invalid char at the tail will be rejected and -EINVAL is returned, |
149 | * only a newline char at the tail is acceptible because people generally |
150 | * change a module parameter in the following way: |
151 | * |
152 | * echo 1024 > /sys/module/e1000/parameters/copybreak |
153 | * |
154 | * echo will append a newline to the tail. |
155 | * |
156 | * It returns 0 if conversion is successful and *res is set to the converted |
157 | * value, otherwise it returns -EINVAL and *res is set to 0. |
158 | * |
159 | * simple_strtoul just ignores the successive invalid characters and |
160 | * return the converted value of prefix part of the string. |
161 | */ |
162 | int strict_strtoul(const char *cp, unsigned int base, unsigned long *res) |
163 | { |
164 | char *tail; |
165 | unsigned long val; |
166 | size_t len; |
167 | |
168 | *res = 0; |
169 | len = strlen(cp); |
170 | if (len == 0) |
171 | return -EINVAL; |
172 | |
173 | val = simple_strtoul(cp, &tail, base); |
174 | if (tail == cp) |
175 | return -EINVAL; |
176 | if ((*tail == '\0') || |
177 | ((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) { |
178 | *res = val; |
179 | return 0; |
180 | } |
181 | |
182 | return -EINVAL; |
183 | } |
184 | EXPORT_SYMBOL(strict_strtoul); |
185 | |
186 | /** |
187 | * strict_strtol - convert a string to a long strictly |
188 | * @cp: The string to be converted |
189 | * @base: The number base to use |
190 | * @res: The converted result value |
191 | * |
192 | * strict_strtol is similiar to strict_strtoul, but it allows the first |
193 | * character of a string is '-'. |
194 | * |
195 | * It returns 0 if conversion is successful and *res is set to the converted |
196 | * value, otherwise it returns -EINVAL and *res is set to 0. |
197 | */ |
198 | int strict_strtol(const char *cp, unsigned int base, long *res) |
199 | { |
200 | int ret; |
201 | if (*cp == '-') { |
202 | ret = strict_strtoul(cp + 1, base, (unsigned long *)res); |
203 | if (!ret) |
204 | *res = -(*res); |
205 | } else { |
206 | ret = strict_strtoul(cp, base, (unsigned long *)res); |
207 | } |
208 | |
209 | return ret; |
210 | } |
211 | EXPORT_SYMBOL(strict_strtol); |
212 | |
213 | /** |
214 | * strict_strtoull - convert a string to an unsigned long long strictly |
215 | * @cp: The string to be converted |
216 | * @base: The number base to use |
217 | * @res: The converted result value |
218 | * |
219 | * strict_strtoull converts a string to an unsigned long long only if the |
220 | * string is really an unsigned long long string, any string containing |
221 | * any invalid char at the tail will be rejected and -EINVAL is returned, |
222 | * only a newline char at the tail is acceptible because people generally |
223 | * change a module parameter in the following way: |
224 | * |
225 | * echo 1024 > /sys/module/e1000/parameters/copybreak |
226 | * |
227 | * echo will append a newline to the tail of the string. |
228 | * |
229 | * It returns 0 if conversion is successful and *res is set to the converted |
230 | * value, otherwise it returns -EINVAL and *res is set to 0. |
231 | * |
232 | * simple_strtoull just ignores the successive invalid characters and |
233 | * return the converted value of prefix part of the string. |
234 | */ |
235 | int strict_strtoull(const char *cp, unsigned int base, unsigned long long *res) |
236 | { |
237 | char *tail; |
238 | unsigned long long val; |
239 | size_t len; |
240 | |
241 | *res = 0; |
242 | len = strlen(cp); |
243 | if (len == 0) |
244 | return -EINVAL; |
245 | |
246 | val = simple_strtoull(cp, &tail, base); |
247 | if (tail == cp) |
248 | return -EINVAL; |
249 | if ((*tail == '\0') || |
250 | ((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) { |
251 | *res = val; |
252 | return 0; |
253 | } |
254 | |
255 | return -EINVAL; |
256 | } |
257 | EXPORT_SYMBOL(strict_strtoull); |
258 | |
259 | /** |
260 | * strict_strtoll - convert a string to a long long strictly |
261 | * @cp: The string to be converted |
262 | * @base: The number base to use |
263 | * @res: The converted result value |
264 | * |
265 | * strict_strtoll is similiar to strict_strtoull, but it allows the first |
266 | * character of a string is '-'. |
267 | * |
268 | * It returns 0 if conversion is successful and *res is set to the converted |
269 | * value, otherwise it returns -EINVAL and *res is set to 0. |
270 | */ |
271 | int strict_strtoll(const char *cp, unsigned int base, long long *res) |
272 | { |
273 | int ret; |
274 | if (*cp == '-') { |
275 | ret = strict_strtoull(cp + 1, base, (unsigned long long *)res); |
276 | if (!ret) |
277 | *res = -(*res); |
278 | } else { |
279 | ret = strict_strtoull(cp, base, (unsigned long long *)res); |
280 | } |
281 | |
282 | return ret; |
283 | } |
284 | EXPORT_SYMBOL(strict_strtoll); |
285 | |
286 | static int skip_atoi(const char **s) |
287 | { |
288 | int i=0; |
289 | |
290 | while (isdigit(**s)) |
291 | i = i*10 + *((*s)++) - '0'; |
292 | return i; |
293 | } |
294 | |
295 | /* Decimal conversion is by far the most typical, and is used |
296 | * for /proc and /sys data. This directly impacts e.g. top performance |
297 | * with many processes running. We optimize it for speed |
298 | * using code from |
299 | * http://www.cs.uiowa.edu/~jones/bcd/decimal.html |
300 | * (with permission from the author, Douglas W. Jones). */ |
301 | |
302 | /* Formats correctly any integer in [0,99999]. |
303 | * Outputs from one to five digits depending on input. |
304 | * On i386 gcc 4.1.2 -O2: ~250 bytes of code. */ |
305 | static char* put_dec_trunc(char *buf, unsigned q) |
306 | { |
307 | unsigned d3, d2, d1, d0; |
308 | d1 = (q>>4) & 0xf; |
309 | d2 = (q>>8) & 0xf; |
310 | d3 = (q>>12); |
311 | |
312 | d0 = 6*(d3 + d2 + d1) + (q & 0xf); |
313 | q = (d0 * 0xcd) >> 11; |
314 | d0 = d0 - 10*q; |
315 | *buf++ = d0 + '0'; /* least significant digit */ |
316 | d1 = q + 9*d3 + 5*d2 + d1; |
317 | if (d1 != 0) { |
318 | q = (d1 * 0xcd) >> 11; |
319 | d1 = d1 - 10*q; |
320 | *buf++ = d1 + '0'; /* next digit */ |
321 | |
322 | d2 = q + 2*d2; |
323 | if ((d2 != 0) || (d3 != 0)) { |
324 | q = (d2 * 0xd) >> 7; |
325 | d2 = d2 - 10*q; |
326 | *buf++ = d2 + '0'; /* next digit */ |
327 | |
328 | d3 = q + 4*d3; |
329 | if (d3 != 0) { |
330 | q = (d3 * 0xcd) >> 11; |
331 | d3 = d3 - 10*q; |
332 | *buf++ = d3 + '0'; /* next digit */ |
333 | if (q != 0) |
334 | *buf++ = q + '0'; /* most sign. digit */ |
335 | } |
336 | } |
337 | } |
338 | return buf; |
339 | } |
340 | /* Same with if's removed. Always emits five digits */ |
341 | static char* put_dec_full(char *buf, unsigned q) |
342 | { |
343 | /* BTW, if q is in [0,9999], 8-bit ints will be enough, */ |
344 | /* but anyway, gcc produces better code with full-sized ints */ |
345 | unsigned d3, d2, d1, d0; |
346 | d1 = (q>>4) & 0xf; |
347 | d2 = (q>>8) & 0xf; |
348 | d3 = (q>>12); |
349 | |
350 | /* Possible ways to approx. divide by 10 */ |
351 | /* gcc -O2 replaces multiply with shifts and adds */ |
352 | // (x * 0xcd) >> 11: 11001101 - shorter code than * 0x67 (on i386) |
353 | // (x * 0x67) >> 10: 1100111 |
354 | // (x * 0x34) >> 9: 110100 - same |
355 | // (x * 0x1a) >> 8: 11010 - same |
356 | // (x * 0x0d) >> 7: 1101 - same, shortest code (on i386) |
357 | |
358 | d0 = 6*(d3 + d2 + d1) + (q & 0xf); |
359 | q = (d0 * 0xcd) >> 11; |
360 | d0 = d0 - 10*q; |
361 | *buf++ = d0 + '0'; |
362 | d1 = q + 9*d3 + 5*d2 + d1; |
363 | q = (d1 * 0xcd) >> 11; |
364 | d1 = d1 - 10*q; |
365 | *buf++ = d1 + '0'; |
366 | |
367 | d2 = q + 2*d2; |
368 | q = (d2 * 0xd) >> 7; |
369 | d2 = d2 - 10*q; |
370 | *buf++ = d2 + '0'; |
371 | |
372 | d3 = q + 4*d3; |
373 | q = (d3 * 0xcd) >> 11; /* - shorter code */ |
374 | /* q = (d3 * 0x67) >> 10; - would also work */ |
375 | d3 = d3 - 10*q; |
376 | *buf++ = d3 + '0'; |
377 | *buf++ = q + '0'; |
378 | return buf; |
379 | } |
380 | /* No inlining helps gcc to use registers better */ |
381 | static noinline char* put_dec(char *buf, unsigned long long num) |
382 | { |
383 | while (1) { |
384 | unsigned rem; |
385 | if (num < 100000) |
386 | return put_dec_trunc(buf, num); |
387 | rem = do_div(num, 100000); |
388 | buf = put_dec_full(buf, rem); |
389 | } |
390 | } |
391 | |
392 | #define ZEROPAD 1 /* pad with zero */ |
393 | #define SIGN 2 /* unsigned/signed long */ |
394 | #define PLUS 4 /* show plus */ |
395 | #define SPACE 8 /* space if plus */ |
396 | #define LEFT 16 /* left justified */ |
397 | #define SMALL 32 /* Must be 32 == 0x20 */ |
398 | #define SPECIAL 64 /* 0x */ |
399 | |
400 | enum format_type { |
401 | FORMAT_TYPE_NONE, /* Just a string part */ |
402 | FORMAT_TYPE_WIDTH, |
403 | FORMAT_TYPE_PRECISION, |
404 | FORMAT_TYPE_CHAR, |
405 | FORMAT_TYPE_STR, |
406 | FORMAT_TYPE_PTR, |
407 | FORMAT_TYPE_PERCENT_CHAR, |
408 | FORMAT_TYPE_INVALID, |
409 | FORMAT_TYPE_LONG_LONG, |
410 | FORMAT_TYPE_ULONG, |
411 | FORMAT_TYPE_LONG, |
412 | FORMAT_TYPE_UBYTE, |
413 | FORMAT_TYPE_BYTE, |
414 | FORMAT_TYPE_USHORT, |
415 | FORMAT_TYPE_SHORT, |
416 | FORMAT_TYPE_UINT, |
417 | FORMAT_TYPE_INT, |
418 | FORMAT_TYPE_NRCHARS, |
419 | FORMAT_TYPE_SIZE_T, |
420 | FORMAT_TYPE_PTRDIFF |
421 | }; |
422 | |
423 | struct printf_spec { |
424 | enum format_type type; |
425 | int flags; /* flags to number() */ |
426 | int field_width; /* width of output field */ |
427 | int base; |
428 | int precision; /* # of digits/chars */ |
429 | int qualifier; |
430 | }; |
431 | |
432 | static char *number(char *buf, char *end, unsigned long long num, |
433 | struct printf_spec spec) |
434 | { |
435 | /* we are called with base 8, 10 or 16, only, thus don't need "G..." */ |
436 | static const char digits[16] = "0123456789ABCDEF"; /* "GHIJKLMNOPQRSTUVWXYZ"; */ |
437 | |
438 | char tmp[66]; |
439 | char sign; |
440 | char locase; |
441 | int need_pfx = ((spec.flags & SPECIAL) && spec.base != 10); |
442 | int i; |
443 | |
444 | /* locase = 0 or 0x20. ORing digits or letters with 'locase' |
445 | * produces same digits or (maybe lowercased) letters */ |
446 | locase = (spec.flags & SMALL); |
447 | if (spec.flags & LEFT) |
448 | spec.flags &= ~ZEROPAD; |
449 | sign = 0; |
450 | if (spec.flags & SIGN) { |
451 | if ((signed long long) num < 0) { |
452 | sign = '-'; |
453 | num = - (signed long long) num; |
454 | spec.field_width--; |
455 | } else if (spec.flags & PLUS) { |
456 | sign = '+'; |
457 | spec.field_width--; |
458 | } else if (spec.flags & SPACE) { |
459 | sign = ' '; |
460 | spec.field_width--; |
461 | } |
462 | } |
463 | if (need_pfx) { |
464 | spec.field_width--; |
465 | if (spec.base == 16) |
466 | spec.field_width--; |
467 | } |
468 | |
469 | /* generate full string in tmp[], in reverse order */ |
470 | i = 0; |
471 | if (num == 0) |
472 | tmp[i++] = '0'; |
473 | /* Generic code, for any base: |
474 | else do { |
475 | tmp[i++] = (digits[do_div(num,base)] | locase); |
476 | } while (num != 0); |
477 | */ |
478 | else if (spec.base != 10) { /* 8 or 16 */ |
479 | int mask = spec.base - 1; |
480 | int shift = 3; |
481 | if (spec.base == 16) shift = 4; |
482 | do { |
483 | tmp[i++] = (digits[((unsigned char)num) & mask] | locase); |
484 | num >>= shift; |
485 | } while (num); |
486 | } else { /* base 10 */ |
487 | i = put_dec(tmp, num) - tmp; |
488 | } |
489 | |
490 | /* printing 100 using %2d gives "100", not "00" */ |
491 | if (i > spec.precision) |
492 | spec.precision = i; |
493 | /* leading space padding */ |
494 | spec.field_width -= spec.precision; |
495 | if (!(spec.flags & (ZEROPAD+LEFT))) { |
496 | while(--spec.field_width >= 0) { |
497 | if (buf < end) |
498 | *buf = ' '; |
499 | ++buf; |
500 | } |
501 | } |
502 | /* sign */ |
503 | if (sign) { |
504 | if (buf < end) |
505 | *buf = sign; |
506 | ++buf; |
507 | } |
508 | /* "0x" / "0" prefix */ |
509 | if (need_pfx) { |
510 | if (buf < end) |
511 | *buf = '0'; |
512 | ++buf; |
513 | if (spec.base == 16) { |
514 | if (buf < end) |
515 | *buf = ('X' | locase); |
516 | ++buf; |
517 | } |
518 | } |
519 | /* zero or space padding */ |
520 | if (!(spec.flags & LEFT)) { |
521 | char c = (spec.flags & ZEROPAD) ? '0' : ' '; |
522 | while (--spec.field_width >= 0) { |
523 | if (buf < end) |
524 | *buf = c; |
525 | ++buf; |
526 | } |
527 | } |
528 | /* hmm even more zero padding? */ |
529 | while (i <= --spec.precision) { |
530 | if (buf < end) |
531 | *buf = '0'; |
532 | ++buf; |
533 | } |
534 | /* actual digits of result */ |
535 | while (--i >= 0) { |
536 | if (buf < end) |
537 | *buf = tmp[i]; |
538 | ++buf; |
539 | } |
540 | /* trailing space padding */ |
541 | while (--spec.field_width >= 0) { |
542 | if (buf < end) |
543 | *buf = ' '; |
544 | ++buf; |
545 | } |
546 | return buf; |
547 | } |
548 | |
549 | static char *string(char *buf, char *end, char *s, struct printf_spec spec) |
550 | { |
551 | int len, i; |
552 | |
553 | if ((unsigned long)s < PAGE_SIZE) |
554 | s = "<NULL>"; |
555 | |
556 | len = strnlen(s, spec.precision); |
557 | |
558 | if (!(spec.flags & LEFT)) { |
559 | while (len < spec.field_width--) { |
560 | if (buf < end) |
561 | *buf = ' '; |
562 | ++buf; |
563 | } |
564 | } |
565 | for (i = 0; i < len; ++i) { |
566 | if (buf < end) |
567 | *buf = *s; |
568 | ++buf; ++s; |
569 | } |
570 | while (len < spec.field_width--) { |
571 | if (buf < end) |
572 | *buf = ' '; |
573 | ++buf; |
574 | } |
575 | return buf; |
576 | } |
577 | |
578 | static char *symbol_string(char *buf, char *end, void *ptr, |
579 | struct printf_spec spec, char ext) |
580 | { |
581 | unsigned long value = (unsigned long) ptr; |
582 | #ifdef CONFIG_KALLSYMS |
583 | char sym[KSYM_SYMBOL_LEN]; |
584 | if (ext != 'f' && ext != 's') |
585 | sprint_symbol(sym, value); |
586 | else |
587 | kallsyms_lookup(value, NULL, NULL, NULL, sym); |
588 | return string(buf, end, sym, spec); |
589 | #else |
590 | spec.field_width = 2*sizeof(void *); |
591 | spec.flags |= SPECIAL | SMALL | ZEROPAD; |
592 | spec.base = 16; |
593 | return number(buf, end, value, spec); |
594 | #endif |
595 | } |
596 | |
597 | static char *resource_string(char *buf, char *end, struct resource *res, |
598 | struct printf_spec spec) |
599 | { |
600 | #ifndef IO_RSRC_PRINTK_SIZE |
601 | #define IO_RSRC_PRINTK_SIZE 4 |
602 | #endif |
603 | |
604 | #ifndef MEM_RSRC_PRINTK_SIZE |
605 | #define MEM_RSRC_PRINTK_SIZE 8 |
606 | #endif |
607 | struct printf_spec num_spec = { |
608 | .base = 16, |
609 | .precision = -1, |
610 | .flags = SPECIAL | SMALL | ZEROPAD, |
611 | }; |
612 | /* room for the actual numbers, the two "0x", -, [, ] and the final zero */ |
613 | char sym[4*sizeof(resource_size_t) + 8]; |
614 | char *p = sym, *pend = sym + sizeof(sym); |
615 | int size = -1; |
616 | |
617 | if (res->flags & IORESOURCE_IO) |
618 | size = IO_RSRC_PRINTK_SIZE; |
619 | else if (res->flags & IORESOURCE_MEM) |
620 | size = MEM_RSRC_PRINTK_SIZE; |
621 | |
622 | *p++ = '['; |
623 | num_spec.field_width = size; |
624 | p = number(p, pend, res->start, num_spec); |
625 | *p++ = '-'; |
626 | p = number(p, pend, res->end, num_spec); |
627 | *p++ = ']'; |
628 | *p = 0; |
629 | |
630 | return string(buf, end, sym, spec); |
631 | } |
632 | |
633 | static char *mac_address_string(char *buf, char *end, u8 *addr, |
634 | struct printf_spec spec, const char *fmt) |
635 | { |
636 | char mac_addr[sizeof("xx:xx:xx:xx:xx:xx")]; |
637 | char *p = mac_addr; |
638 | int i; |
639 | |
640 | for (i = 0; i < 6; i++) { |
641 | p = pack_hex_byte(p, addr[i]); |
642 | if (fmt[0] == 'M' && i != 5) |
643 | *p++ = ':'; |
644 | } |
645 | *p = '\0'; |
646 | |
647 | return string(buf, end, mac_addr, spec); |
648 | } |
649 | |
650 | static char *ip4_string(char *p, const u8 *addr, bool leading_zeros) |
651 | { |
652 | int i; |
653 | |
654 | for (i = 0; i < 4; i++) { |
655 | char temp[3]; /* hold each IP quad in reverse order */ |
656 | int digits = put_dec_trunc(temp, addr[i]) - temp; |
657 | if (leading_zeros) { |
658 | if (digits < 3) |
659 | *p++ = '0'; |
660 | if (digits < 2) |
661 | *p++ = '0'; |
662 | } |
663 | /* reverse the digits in the quad */ |
664 | while (digits--) |
665 | *p++ = temp[digits]; |
666 | if (i < 3) |
667 | *p++ = '.'; |
668 | } |
669 | |
670 | *p = '\0'; |
671 | return p; |
672 | } |
673 | |
674 | static char *ip6_compressed_string(char *p, const char *addr) |
675 | { |
676 | int i; |
677 | int j; |
678 | int range; |
679 | unsigned char zerolength[8]; |
680 | int longest = 1; |
681 | int colonpos = -1; |
682 | u16 word; |
683 | u8 hi; |
684 | u8 lo; |
685 | bool needcolon = false; |
686 | bool useIPv4; |
687 | struct in6_addr in6; |
688 | |
689 | memcpy(&in6, addr, sizeof(struct in6_addr)); |
690 | |
691 | useIPv4 = ipv6_addr_v4mapped(&in6) || ipv6_addr_is_isatap(&in6); |
692 | |
693 | memset(zerolength, 0, sizeof(zerolength)); |
694 | |
695 | if (useIPv4) |
696 | range = 6; |
697 | else |
698 | range = 8; |
699 | |
700 | /* find position of longest 0 run */ |
701 | for (i = 0; i < range; i++) { |
702 | for (j = i; j < range; j++) { |
703 | if (in6.s6_addr16[j] != 0) |
704 | break; |
705 | zerolength[i]++; |
706 | } |
707 | } |
708 | for (i = 0; i < range; i++) { |
709 | if (zerolength[i] > longest) { |
710 | longest = zerolength[i]; |
711 | colonpos = i; |
712 | } |
713 | } |
714 | |
715 | /* emit address */ |
716 | for (i = 0; i < range; i++) { |
717 | if (i == colonpos) { |
718 | if (needcolon || i == 0) |
719 | *p++ = ':'; |
720 | *p++ = ':'; |
721 | needcolon = false; |
722 | i += longest - 1; |
723 | continue; |
724 | } |
725 | if (needcolon) { |
726 | *p++ = ':'; |
727 | needcolon = false; |
728 | } |
729 | /* hex u16 without leading 0s */ |
730 | word = ntohs(in6.s6_addr16[i]); |
731 | hi = word >> 8; |
732 | lo = word & 0xff; |
733 | if (hi) { |
734 | if (hi > 0x0f) |
735 | p = pack_hex_byte(p, hi); |
736 | else |
737 | *p++ = hex_asc_lo(hi); |
738 | } |
739 | if (hi || lo > 0x0f) |
740 | p = pack_hex_byte(p, lo); |
741 | else |
742 | *p++ = hex_asc_lo(lo); |
743 | needcolon = true; |
744 | } |
745 | |
746 | if (useIPv4) { |
747 | if (needcolon) |
748 | *p++ = ':'; |
749 | p = ip4_string(p, &in6.s6_addr[12], false); |
750 | } |
751 | |
752 | *p = '\0'; |
753 | return p; |
754 | } |
755 | |
756 | static char *ip6_string(char *p, const char *addr, const char *fmt) |
757 | { |
758 | int i; |
759 | for (i = 0; i < 8; i++) { |
760 | p = pack_hex_byte(p, *addr++); |
761 | p = pack_hex_byte(p, *addr++); |
762 | if (fmt[0] == 'I' && i != 7) |
763 | *p++ = ':'; |
764 | } |
765 | |
766 | *p = '\0'; |
767 | return p; |
768 | } |
769 | |
770 | static char *ip6_addr_string(char *buf, char *end, const u8 *addr, |
771 | struct printf_spec spec, const char *fmt) |
772 | { |
773 | char ip6_addr[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255.255.255.255")]; |
774 | |
775 | if (fmt[0] == 'I' && fmt[2] == 'c') |
776 | ip6_compressed_string(ip6_addr, addr); |
777 | else |
778 | ip6_string(ip6_addr, addr, fmt); |
779 | |
780 | return string(buf, end, ip6_addr, spec); |
781 | } |
782 | |
783 | static char *ip4_addr_string(char *buf, char *end, const u8 *addr, |
784 | struct printf_spec spec, const char *fmt) |
785 | { |
786 | char ip4_addr[sizeof("255.255.255.255")]; |
787 | |
788 | ip4_string(ip4_addr, addr, fmt[0] == 'i'); |
789 | |
790 | return string(buf, end, ip4_addr, spec); |
791 | } |
792 | |
793 | /* |
794 | * Show a '%p' thing. A kernel extension is that the '%p' is followed |
795 | * by an extra set of alphanumeric characters that are extended format |
796 | * specifiers. |
797 | * |
798 | * Right now we handle: |
799 | * |
800 | * - 'F' For symbolic function descriptor pointers with offset |
801 | * - 'f' For simple symbolic function names without offset |
802 | * - 'S' For symbolic direct pointers with offset |
803 | * - 's' For symbolic direct pointers without offset |
804 | * - 'R' For a struct resource pointer, it prints the range of |
805 | * addresses (not the name nor the flags) |
806 | * - 'M' For a 6-byte MAC address, it prints the address in the |
807 | * usual colon-separated hex notation |
808 | * - 'm' For a 6-byte MAC address, it prints the hex address without colons |
809 | * - 'I' [46] for IPv4/IPv6 addresses printed in the usual way |
810 | * IPv4 uses dot-separated decimal without leading 0's (1.2.3.4) |
811 | * IPv6 uses colon separated network-order 16 bit hex with leading 0's |
812 | * - 'i' [46] for 'raw' IPv4/IPv6 addresses |
813 | * IPv6 omits the colons (01020304...0f) |
814 | * IPv4 uses dot-separated decimal with leading 0's (010.123.045.006) |
815 | * - 'I6c' for IPv6 addresses printed as specified by |
816 | * http://www.ietf.org/id/draft-kawamura-ipv6-text-representation-03.txt |
817 | * Note: The difference between 'S' and 'F' is that on ia64 and ppc64 |
818 | * function pointers are really function descriptors, which contain a |
819 | * pointer to the real address. |
820 | */ |
821 | static char *pointer(const char *fmt, char *buf, char *end, void *ptr, |
822 | struct printf_spec spec) |
823 | { |
824 | if (!ptr) |
825 | return string(buf, end, "(null)", spec); |
826 | |
827 | switch (*fmt) { |
828 | case 'F': |
829 | case 'f': |
830 | ptr = dereference_function_descriptor(ptr); |
831 | case 's': |
832 | /* Fallthrough */ |
833 | case 'S': |
834 | return symbol_string(buf, end, ptr, spec, *fmt); |
835 | case 'R': |
836 | return resource_string(buf, end, ptr, spec); |
837 | case 'M': /* Colon separated: 00:01:02:03:04:05 */ |
838 | case 'm': /* Contiguous: 000102030405 */ |
839 | return mac_address_string(buf, end, ptr, spec, fmt); |
840 | case 'I': /* Formatted IP supported |
841 | * 4: 1.2.3.4 |
842 | * 6: 0001:0203:...:0708 |
843 | * 6c: 1::708 or 1::1.2.3.4 |
844 | */ |
845 | case 'i': /* Contiguous: |
846 | * 4: 001.002.003.004 |
847 | * 6: 000102...0f |
848 | */ |
849 | switch (fmt[1]) { |
850 | case '6': |
851 | return ip6_addr_string(buf, end, ptr, spec, fmt); |
852 | case '4': |
853 | return ip4_addr_string(buf, end, ptr, spec, fmt); |
854 | } |
855 | break; |
856 | } |
857 | spec.flags |= SMALL; |
858 | if (spec.field_width == -1) { |
859 | spec.field_width = 2*sizeof(void *); |
860 | spec.flags |= ZEROPAD; |
861 | } |
862 | spec.base = 16; |
863 | |
864 | return number(buf, end, (unsigned long) ptr, spec); |
865 | } |
866 | |
867 | /* |
868 | * Helper function to decode printf style format. |
869 | * Each call decode a token from the format and return the |
870 | * number of characters read (or likely the delta where it wants |
871 | * to go on the next call). |
872 | * The decoded token is returned through the parameters |
873 | * |
874 | * 'h', 'l', or 'L' for integer fields |
875 | * 'z' support added 23/7/1999 S.H. |
876 | * 'z' changed to 'Z' --davidm 1/25/99 |
877 | * 't' added for ptrdiff_t |
878 | * |
879 | * @fmt: the format string |
880 | * @type of the token returned |
881 | * @flags: various flags such as +, -, # tokens.. |
882 | * @field_width: overwritten width |
883 | * @base: base of the number (octal, hex, ...) |
884 | * @precision: precision of a number |
885 | * @qualifier: qualifier of a number (long, size_t, ...) |
886 | */ |
887 | static int format_decode(const char *fmt, struct printf_spec *spec) |
888 | { |
889 | const char *start = fmt; |
890 | |
891 | /* we finished early by reading the field width */ |
892 | if (spec->type == FORMAT_TYPE_WIDTH) { |
893 | if (spec->field_width < 0) { |
894 | spec->field_width = -spec->field_width; |
895 | spec->flags |= LEFT; |
896 | } |
897 | spec->type = FORMAT_TYPE_NONE; |
898 | goto precision; |
899 | } |
900 | |
901 | /* we finished early by reading the precision */ |
902 | if (spec->type == FORMAT_TYPE_PRECISION) { |
903 | if (spec->precision < 0) |
904 | spec->precision = 0; |
905 | |
906 | spec->type = FORMAT_TYPE_NONE; |
907 | goto qualifier; |
908 | } |
909 | |
910 | /* By default */ |
911 | spec->type = FORMAT_TYPE_NONE; |
912 | |
913 | for (; *fmt ; ++fmt) { |
914 | if (*fmt == '%') |
915 | break; |
916 | } |
917 | |
918 | /* Return the current non-format string */ |
919 | if (fmt != start || !*fmt) |
920 | return fmt - start; |
921 | |
922 | /* Process flags */ |
923 | spec->flags = 0; |
924 | |
925 | while (1) { /* this also skips first '%' */ |
926 | bool found = true; |
927 | |
928 | ++fmt; |
929 | |
930 | switch (*fmt) { |
931 | case '-': spec->flags |= LEFT; break; |
932 | case '+': spec->flags |= PLUS; break; |
933 | case ' ': spec->flags |= SPACE; break; |
934 | case '#': spec->flags |= SPECIAL; break; |
935 | case '0': spec->flags |= ZEROPAD; break; |
936 | default: found = false; |
937 | } |
938 | |
939 | if (!found) |
940 | break; |
941 | } |
942 | |
943 | /* get field width */ |
944 | spec->field_width = -1; |
945 | |
946 | if (isdigit(*fmt)) |
947 | spec->field_width = skip_atoi(&fmt); |
948 | else if (*fmt == '*') { |
949 | /* it's the next argument */ |
950 | spec->type = FORMAT_TYPE_WIDTH; |
951 | return ++fmt - start; |
952 | } |
953 | |
954 | precision: |
955 | /* get the precision */ |
956 | spec->precision = -1; |
957 | if (*fmt == '.') { |
958 | ++fmt; |
959 | if (isdigit(*fmt)) { |
960 | spec->precision = skip_atoi(&fmt); |
961 | if (spec->precision < 0) |
962 | spec->precision = 0; |
963 | } else if (*fmt == '*') { |
964 | /* it's the next argument */ |
965 | spec->type = FORMAT_TYPE_PRECISION; |
966 | return ++fmt - start; |
967 | } |
968 | } |
969 | |
970 | qualifier: |
971 | /* get the conversion qualifier */ |
972 | spec->qualifier = -1; |
973 | if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || |
974 | *fmt == 'Z' || *fmt == 'z' || *fmt == 't') { |
975 | spec->qualifier = *fmt++; |
976 | if (unlikely(spec->qualifier == *fmt)) { |
977 | if (spec->qualifier == 'l') { |
978 | spec->qualifier = 'L'; |
979 | ++fmt; |
980 | } else if (spec->qualifier == 'h') { |
981 | spec->qualifier = 'H'; |
982 | ++fmt; |
983 | } |
984 | } |
985 | } |
986 | |
987 | /* default base */ |
988 | spec->base = 10; |
989 | switch (*fmt) { |
990 | case 'c': |
991 | spec->type = FORMAT_TYPE_CHAR; |
992 | return ++fmt - start; |
993 | |
994 | case 's': |
995 | spec->type = FORMAT_TYPE_STR; |
996 | return ++fmt - start; |
997 | |
998 | case 'p': |
999 | spec->type = FORMAT_TYPE_PTR; |
1000 | return fmt - start; |
1001 | /* skip alnum */ |
1002 | |
1003 | case 'n': |
1004 | spec->type = FORMAT_TYPE_NRCHARS; |
1005 | return ++fmt - start; |
1006 | |
1007 | case '%': |
1008 | spec->type = FORMAT_TYPE_PERCENT_CHAR; |
1009 | return ++fmt - start; |
1010 | |
1011 | /* integer number formats - set up the flags and "break" */ |
1012 | case 'o': |
1013 | spec->base = 8; |
1014 | break; |
1015 | |
1016 | case 'x': |
1017 | spec->flags |= SMALL; |
1018 | |
1019 | case 'X': |
1020 | spec->base = 16; |
1021 | break; |
1022 | |
1023 | case 'd': |
1024 | case 'i': |
1025 | spec->flags |= SIGN; |
1026 | case 'u': |
1027 | break; |
1028 | |
1029 | default: |
1030 | spec->type = FORMAT_TYPE_INVALID; |
1031 | return fmt - start; |
1032 | } |
1033 | |
1034 | if (spec->qualifier == 'L') |
1035 | spec->type = FORMAT_TYPE_LONG_LONG; |
1036 | else if (spec->qualifier == 'l') { |
1037 | if (spec->flags & SIGN) |
1038 | spec->type = FORMAT_TYPE_LONG; |
1039 | else |
1040 | spec->type = FORMAT_TYPE_ULONG; |
1041 | } else if (spec->qualifier == 'Z' || spec->qualifier == 'z') { |
1042 | spec->type = FORMAT_TYPE_SIZE_T; |
1043 | } else if (spec->qualifier == 't') { |
1044 | spec->type = FORMAT_TYPE_PTRDIFF; |
1045 | } else if (spec->qualifier == 'H') { |
1046 | if (spec->flags & SIGN) |
1047 | spec->type = FORMAT_TYPE_BYTE; |
1048 | else |
1049 | spec->type = FORMAT_TYPE_UBYTE; |
1050 | } else if (spec->qualifier == 'h') { |
1051 | if (spec->flags & SIGN) |
1052 | spec->type = FORMAT_TYPE_SHORT; |
1053 | else |
1054 | spec->type = FORMAT_TYPE_USHORT; |
1055 | } else { |
1056 | if (spec->flags & SIGN) |
1057 | spec->type = FORMAT_TYPE_INT; |
1058 | else |
1059 | spec->type = FORMAT_TYPE_UINT; |
1060 | } |
1061 | |
1062 | return ++fmt - start; |
1063 | } |
1064 | |
1065 | /** |
1066 | * vsnprintf - Format a string and place it in a buffer |
1067 | * @buf: The buffer to place the result into |
1068 | * @size: The size of the buffer, including the trailing null space |
1069 | * @fmt: The format string to use |
1070 | * @args: Arguments for the format string |
1071 | * |
1072 | * This function follows C99 vsnprintf, but has some extensions: |
1073 | * %pS output the name of a text symbol with offset |
1074 | * %ps output the name of a text symbol without offset |
1075 | * %pF output the name of a function pointer with its offset |
1076 | * %pf output the name of a function pointer without its offset |
1077 | * %pR output the address range in a struct resource |
1078 | * %n is ignored |
1079 | * |
1080 | * The return value is the number of characters which would |
1081 | * be generated for the given input, excluding the trailing |
1082 | * '\0', as per ISO C99. If you want to have the exact |
1083 | * number of characters written into @buf as return value |
1084 | * (not including the trailing '\0'), use vscnprintf(). If the |
1085 | * return is greater than or equal to @size, the resulting |
1086 | * string is truncated. |
1087 | * |
1088 | * Call this function if you are already dealing with a va_list. |
1089 | * You probably want snprintf() instead. |
1090 | */ |
1091 | int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) |
1092 | { |
1093 | unsigned long long num; |
1094 | char *str, *end, c; |
1095 | int read; |
1096 | struct printf_spec spec = {0}; |
1097 | |
1098 | /* Reject out-of-range values early. Large positive sizes are |
1099 | used for unknown buffer sizes. */ |
1100 | if (WARN_ON_ONCE((int) size < 0)) |
1101 | return 0; |
1102 | |
1103 | str = buf; |
1104 | end = buf + size; |
1105 | |
1106 | /* Make sure end is always >= buf */ |
1107 | if (end < buf) { |
1108 | end = ((void *)-1); |
1109 | size = end - buf; |
1110 | } |
1111 | |
1112 | while (*fmt) { |
1113 | const char *old_fmt = fmt; |
1114 | |
1115 | read = format_decode(fmt, &spec); |
1116 | |
1117 | fmt += read; |
1118 | |
1119 | switch (spec.type) { |
1120 | case FORMAT_TYPE_NONE: { |
1121 | int copy = read; |
1122 | if (str < end) { |
1123 | if (copy > end - str) |
1124 | copy = end - str; |
1125 | memcpy(str, old_fmt, copy); |
1126 | } |
1127 | str += read; |
1128 | break; |
1129 | } |
1130 | |
1131 | case FORMAT_TYPE_WIDTH: |
1132 | spec.field_width = va_arg(args, int); |
1133 | break; |
1134 | |
1135 | case FORMAT_TYPE_PRECISION: |
1136 | spec.precision = va_arg(args, int); |
1137 | break; |
1138 | |
1139 | case FORMAT_TYPE_CHAR: |
1140 | if (!(spec.flags & LEFT)) { |
1141 | while (--spec.field_width > 0) { |
1142 | if (str < end) |
1143 | *str = ' '; |
1144 | ++str; |
1145 | |
1146 | } |
1147 | } |
1148 | c = (unsigned char) va_arg(args, int); |
1149 | if (str < end) |
1150 | *str = c; |
1151 | ++str; |
1152 | while (--spec.field_width > 0) { |
1153 | if (str < end) |
1154 | *str = ' '; |
1155 | ++str; |
1156 | } |
1157 | break; |
1158 | |
1159 | case FORMAT_TYPE_STR: |
1160 | str = string(str, end, va_arg(args, char *), spec); |
1161 | break; |
1162 | |
1163 | case FORMAT_TYPE_PTR: |
1164 | str = pointer(fmt+1, str, end, va_arg(args, void *), |
1165 | spec); |
1166 | while (isalnum(*fmt)) |
1167 | fmt++; |
1168 | break; |
1169 | |
1170 | case FORMAT_TYPE_PERCENT_CHAR: |
1171 | if (str < end) |
1172 | *str = '%'; |
1173 | ++str; |
1174 | break; |
1175 | |
1176 | case FORMAT_TYPE_INVALID: |
1177 | if (str < end) |
1178 | *str = '%'; |
1179 | ++str; |
1180 | break; |
1181 | |
1182 | case FORMAT_TYPE_NRCHARS: { |
1183 | int qualifier = spec.qualifier; |
1184 | |
1185 | if (qualifier == 'l') { |
1186 | long *ip = va_arg(args, long *); |
1187 | *ip = (str - buf); |
1188 | } else if (qualifier == 'Z' || |
1189 | qualifier == 'z') { |
1190 | size_t *ip = va_arg(args, size_t *); |
1191 | *ip = (str - buf); |
1192 | } else { |
1193 | int *ip = va_arg(args, int *); |
1194 | *ip = (str - buf); |
1195 | } |
1196 | break; |
1197 | } |
1198 | |
1199 | default: |
1200 | switch (spec.type) { |
1201 | case FORMAT_TYPE_LONG_LONG: |
1202 | num = va_arg(args, long long); |
1203 | break; |
1204 | case FORMAT_TYPE_ULONG: |
1205 | num = va_arg(args, unsigned long); |
1206 | break; |
1207 | case FORMAT_TYPE_LONG: |
1208 | num = va_arg(args, long); |
1209 | break; |
1210 | case FORMAT_TYPE_SIZE_T: |
1211 | num = va_arg(args, size_t); |
1212 | break; |
1213 | case FORMAT_TYPE_PTRDIFF: |
1214 | num = va_arg(args, ptrdiff_t); |
1215 | break; |
1216 | case FORMAT_TYPE_UBYTE: |
1217 | num = (unsigned char) va_arg(args, int); |
1218 | break; |
1219 | case FORMAT_TYPE_BYTE: |
1220 | num = (signed char) va_arg(args, int); |
1221 | break; |
1222 | case FORMAT_TYPE_USHORT: |
1223 | num = (unsigned short) va_arg(args, int); |
1224 | break; |
1225 | case FORMAT_TYPE_SHORT: |
1226 | num = (short) va_arg(args, int); |
1227 | break; |
1228 | case FORMAT_TYPE_INT: |
1229 | num = (int) va_arg(args, int); |
1230 | break; |
1231 | default: |
1232 | num = va_arg(args, unsigned int); |
1233 | } |
1234 | |
1235 | str = number(str, end, num, spec); |
1236 | } |
1237 | } |
1238 | |
1239 | if (size > 0) { |
1240 | if (str < end) |
1241 | *str = '\0'; |
1242 | else |
1243 | end[-1] = '\0'; |
1244 | } |
1245 | |
1246 | /* the trailing null byte doesn't count towards the total */ |
1247 | return str-buf; |
1248 | |
1249 | } |
1250 | EXPORT_SYMBOL(vsnprintf); |
1251 | |
1252 | /** |
1253 | * vscnprintf - Format a string and place it in a buffer |
1254 | * @buf: The buffer to place the result into |
1255 | * @size: The size of the buffer, including the trailing null space |
1256 | * @fmt: The format string to use |
1257 | * @args: Arguments for the format string |
1258 | * |
1259 | * The return value is the number of characters which have been written into |
1260 | * the @buf not including the trailing '\0'. If @size is <= 0 the function |
1261 | * returns 0. |
1262 | * |
1263 | * Call this function if you are already dealing with a va_list. |
1264 | * You probably want scnprintf() instead. |
1265 | * |
1266 | * See the vsnprintf() documentation for format string extensions over C99. |
1267 | */ |
1268 | int vscnprintf(char *buf, size_t size, const char *fmt, va_list args) |
1269 | { |
1270 | int i; |
1271 | |
1272 | i=vsnprintf(buf,size,fmt,args); |
1273 | return (i >= size) ? (size - 1) : i; |
1274 | } |
1275 | EXPORT_SYMBOL(vscnprintf); |
1276 | |
1277 | /** |
1278 | * snprintf - Format a string and place it in a buffer |
1279 | * @buf: The buffer to place the result into |
1280 | * @size: The size of the buffer, including the trailing null space |
1281 | * @fmt: The format string to use |
1282 | * @...: Arguments for the format string |
1283 | * |
1284 | * The return value is the number of characters which would be |
1285 | * generated for the given input, excluding the trailing null, |
1286 | * as per ISO C99. If the return is greater than or equal to |
1287 | * @size, the resulting string is truncated. |
1288 | * |
1289 | * See the vsnprintf() documentation for format string extensions over C99. |
1290 | */ |
1291 | int snprintf(char * buf, size_t size, const char *fmt, ...) |
1292 | { |
1293 | va_list args; |
1294 | int i; |
1295 | |
1296 | va_start(args, fmt); |
1297 | i=vsnprintf(buf,size,fmt,args); |
1298 | va_end(args); |
1299 | return i; |
1300 | } |
1301 | EXPORT_SYMBOL(snprintf); |
1302 | |
1303 | /** |
1304 | * scnprintf - Format a string and place it in a buffer |
1305 | * @buf: The buffer to place the result into |
1306 | * @size: The size of the buffer, including the trailing null space |
1307 | * @fmt: The format string to use |
1308 | * @...: Arguments for the format string |
1309 | * |
1310 | * The return value is the number of characters written into @buf not including |
1311 | * the trailing '\0'. If @size is <= 0 the function returns 0. |
1312 | */ |
1313 | |
1314 | int scnprintf(char * buf, size_t size, const char *fmt, ...) |
1315 | { |
1316 | va_list args; |
1317 | int i; |
1318 | |
1319 | va_start(args, fmt); |
1320 | i = vsnprintf(buf, size, fmt, args); |
1321 | va_end(args); |
1322 | return (i >= size) ? (size - 1) : i; |
1323 | } |
1324 | EXPORT_SYMBOL(scnprintf); |
1325 | |
1326 | /** |
1327 | * vsprintf - Format a string and place it in a buffer |
1328 | * @buf: The buffer to place the result into |
1329 | * @fmt: The format string to use |
1330 | * @args: Arguments for the format string |
1331 | * |
1332 | * The function returns the number of characters written |
1333 | * into @buf. Use vsnprintf() or vscnprintf() in order to avoid |
1334 | * buffer overflows. |
1335 | * |
1336 | * Call this function if you are already dealing with a va_list. |
1337 | * You probably want sprintf() instead. |
1338 | * |
1339 | * See the vsnprintf() documentation for format string extensions over C99. |
1340 | */ |
1341 | int vsprintf(char *buf, const char *fmt, va_list args) |
1342 | { |
1343 | return vsnprintf(buf, INT_MAX, fmt, args); |
1344 | } |
1345 | EXPORT_SYMBOL(vsprintf); |
1346 | |
1347 | /** |
1348 | * sprintf - Format a string and place it in a buffer |
1349 | * @buf: The buffer to place the result into |
1350 | * @fmt: The format string to use |
1351 | * @...: Arguments for the format string |
1352 | * |
1353 | * The function returns the number of characters written |
1354 | * into @buf. Use snprintf() or scnprintf() in order to avoid |
1355 | * buffer overflows. |
1356 | * |
1357 | * See the vsnprintf() documentation for format string extensions over C99. |
1358 | */ |
1359 | int sprintf(char * buf, const char *fmt, ...) |
1360 | { |
1361 | va_list args; |
1362 | int i; |
1363 | |
1364 | va_start(args, fmt); |
1365 | i=vsnprintf(buf, INT_MAX, fmt, args); |
1366 | va_end(args); |
1367 | return i; |
1368 | } |
1369 | EXPORT_SYMBOL(sprintf); |
1370 | |
1371 | #ifdef CONFIG_BINARY_PRINTF |
1372 | /* |
1373 | * bprintf service: |
1374 | * vbin_printf() - VA arguments to binary data |
1375 | * bstr_printf() - Binary data to text string |
1376 | */ |
1377 | |
1378 | /** |
1379 | * vbin_printf - Parse a format string and place args' binary value in a buffer |
1380 | * @bin_buf: The buffer to place args' binary value |
1381 | * @size: The size of the buffer(by words(32bits), not characters) |
1382 | * @fmt: The format string to use |
1383 | * @args: Arguments for the format string |
1384 | * |
1385 | * The format follows C99 vsnprintf, except %n is ignored, and its argument |
1386 | * is skiped. |
1387 | * |
1388 | * The return value is the number of words(32bits) which would be generated for |
1389 | * the given input. |
1390 | * |
1391 | * NOTE: |
1392 | * If the return value is greater than @size, the resulting bin_buf is NOT |
1393 | * valid for bstr_printf(). |
1394 | */ |
1395 | int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args) |
1396 | { |
1397 | struct printf_spec spec = {0}; |
1398 | char *str, *end; |
1399 | int read; |
1400 | |
1401 | str = (char *)bin_buf; |
1402 | end = (char *)(bin_buf + size); |
1403 | |
1404 | #define save_arg(type) \ |
1405 | do { \ |
1406 | if (sizeof(type) == 8) { \ |
1407 | unsigned long long value; \ |
1408 | str = PTR_ALIGN(str, sizeof(u32)); \ |
1409 | value = va_arg(args, unsigned long long); \ |
1410 | if (str + sizeof(type) <= end) { \ |
1411 | *(u32 *)str = *(u32 *)&value; \ |
1412 | *(u32 *)(str + 4) = *((u32 *)&value + 1); \ |
1413 | } \ |
1414 | } else { \ |
1415 | unsigned long value; \ |
1416 | str = PTR_ALIGN(str, sizeof(type)); \ |
1417 | value = va_arg(args, int); \ |
1418 | if (str + sizeof(type) <= end) \ |
1419 | *(typeof(type) *)str = (type)value; \ |
1420 | } \ |
1421 | str += sizeof(type); \ |
1422 | } while (0) |
1423 | |
1424 | |
1425 | while (*fmt) { |
1426 | read = format_decode(fmt, &spec); |
1427 | |
1428 | fmt += read; |
1429 | |
1430 | switch (spec.type) { |
1431 | case FORMAT_TYPE_NONE: |
1432 | break; |
1433 | |
1434 | case FORMAT_TYPE_WIDTH: |
1435 | case FORMAT_TYPE_PRECISION: |
1436 | save_arg(int); |
1437 | break; |
1438 | |
1439 | case FORMAT_TYPE_CHAR: |
1440 | save_arg(char); |
1441 | break; |
1442 | |
1443 | case FORMAT_TYPE_STR: { |
1444 | const char *save_str = va_arg(args, char *); |
1445 | size_t len; |
1446 | if ((unsigned long)save_str > (unsigned long)-PAGE_SIZE |
1447 | || (unsigned long)save_str < PAGE_SIZE) |
1448 | save_str = "<NULL>"; |
1449 | len = strlen(save_str); |
1450 | if (str + len + 1 < end) |
1451 | memcpy(str, save_str, len + 1); |
1452 | str += len + 1; |
1453 | break; |
1454 | } |
1455 | |
1456 | case FORMAT_TYPE_PTR: |
1457 | save_arg(void *); |
1458 | /* skip all alphanumeric pointer suffixes */ |
1459 | while (isalnum(*fmt)) |
1460 | fmt++; |
1461 | break; |
1462 | |
1463 | case FORMAT_TYPE_PERCENT_CHAR: |
1464 | break; |
1465 | |
1466 | case FORMAT_TYPE_INVALID: |
1467 | break; |
1468 | |
1469 | case FORMAT_TYPE_NRCHARS: { |
1470 | /* skip %n 's argument */ |
1471 | int qualifier = spec.qualifier; |
1472 | void *skip_arg; |
1473 | if (qualifier == 'l') |
1474 | skip_arg = va_arg(args, long *); |
1475 | else if (qualifier == 'Z' || qualifier == 'z') |
1476 | skip_arg = va_arg(args, size_t *); |
1477 | else |
1478 | skip_arg = va_arg(args, int *); |
1479 | break; |
1480 | } |
1481 | |
1482 | default: |
1483 | switch (spec.type) { |
1484 | |
1485 | case FORMAT_TYPE_LONG_LONG: |
1486 | save_arg(long long); |
1487 | break; |
1488 | case FORMAT_TYPE_ULONG: |
1489 | case FORMAT_TYPE_LONG: |
1490 | save_arg(unsigned long); |
1491 | break; |
1492 | case FORMAT_TYPE_SIZE_T: |
1493 | save_arg(size_t); |
1494 | break; |
1495 | case FORMAT_TYPE_PTRDIFF: |
1496 | save_arg(ptrdiff_t); |
1497 | break; |
1498 | case FORMAT_TYPE_UBYTE: |
1499 | case FORMAT_TYPE_BYTE: |
1500 | save_arg(char); |
1501 | break; |
1502 | case FORMAT_TYPE_USHORT: |
1503 | case FORMAT_TYPE_SHORT: |
1504 | save_arg(short); |
1505 | break; |
1506 | default: |
1507 | save_arg(int); |
1508 | } |
1509 | } |
1510 | } |
1511 | return (u32 *)(PTR_ALIGN(str, sizeof(u32))) - bin_buf; |
1512 | |
1513 | #undef save_arg |
1514 | } |
1515 | EXPORT_SYMBOL_GPL(vbin_printf); |
1516 | |
1517 | /** |
1518 | * bstr_printf - Format a string from binary arguments and place it in a buffer |
1519 | * @buf: The buffer to place the result into |
1520 | * @size: The size of the buffer, including the trailing null space |
1521 | * @fmt: The format string to use |
1522 | * @bin_buf: Binary arguments for the format string |
1523 | * |
1524 | * This function like C99 vsnprintf, but the difference is that vsnprintf gets |
1525 | * arguments from stack, and bstr_printf gets arguments from @bin_buf which is |
1526 | * a binary buffer that generated by vbin_printf. |
1527 | * |
1528 | * The format follows C99 vsnprintf, but has some extensions: |
1529 | * see vsnprintf comment for details. |
1530 | * |
1531 | * The return value is the number of characters which would |
1532 | * be generated for the given input, excluding the trailing |
1533 | * '\0', as per ISO C99. If you want to have the exact |
1534 | * number of characters written into @buf as return value |
1535 | * (not including the trailing '\0'), use vscnprintf(). If the |
1536 | * return is greater than or equal to @size, the resulting |
1537 | * string is truncated. |
1538 | */ |
1539 | int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf) |
1540 | { |
1541 | unsigned long long num; |
1542 | char *str, *end, c; |
1543 | const char *args = (const char *)bin_buf; |
1544 | |
1545 | struct printf_spec spec = {0}; |
1546 | |
1547 | if (WARN_ON_ONCE((int) size < 0)) |
1548 | return 0; |
1549 | |
1550 | str = buf; |
1551 | end = buf + size; |
1552 | |
1553 | #define get_arg(type) \ |
1554 | ({ \ |
1555 | typeof(type) value; \ |
1556 | if (sizeof(type) == 8) { \ |
1557 | args = PTR_ALIGN(args, sizeof(u32)); \ |
1558 | *(u32 *)&value = *(u32 *)args; \ |
1559 | *((u32 *)&value + 1) = *(u32 *)(args + 4); \ |
1560 | } else { \ |
1561 | args = PTR_ALIGN(args, sizeof(type)); \ |
1562 | value = *(typeof(type) *)args; \ |
1563 | } \ |
1564 | args += sizeof(type); \ |
1565 | value; \ |
1566 | }) |
1567 | |
1568 | /* Make sure end is always >= buf */ |
1569 | if (end < buf) { |
1570 | end = ((void *)-1); |
1571 | size = end - buf; |
1572 | } |
1573 | |
1574 | while (*fmt) { |
1575 | int read; |
1576 | const char *old_fmt = fmt; |
1577 | |
1578 | read = format_decode(fmt, &spec); |
1579 | |
1580 | fmt += read; |
1581 | |
1582 | switch (spec.type) { |
1583 | case FORMAT_TYPE_NONE: { |
1584 | int copy = read; |
1585 | if (str < end) { |
1586 | if (copy > end - str) |
1587 | copy = end - str; |
1588 | memcpy(str, old_fmt, copy); |
1589 | } |
1590 | str += read; |
1591 | break; |
1592 | } |
1593 | |
1594 | case FORMAT_TYPE_WIDTH: |
1595 | spec.field_width = get_arg(int); |
1596 | break; |
1597 | |
1598 | case FORMAT_TYPE_PRECISION: |
1599 | spec.precision = get_arg(int); |
1600 | break; |
1601 | |
1602 | case FORMAT_TYPE_CHAR: |
1603 | if (!(spec.flags & LEFT)) { |
1604 | while (--spec.field_width > 0) { |
1605 | if (str < end) |
1606 | *str = ' '; |
1607 | ++str; |
1608 | } |
1609 | } |
1610 | c = (unsigned char) get_arg(char); |
1611 | if (str < end) |
1612 | *str = c; |
1613 | ++str; |
1614 | while (--spec.field_width > 0) { |
1615 | if (str < end) |
1616 | *str = ' '; |
1617 | ++str; |
1618 | } |
1619 | break; |
1620 | |
1621 | case FORMAT_TYPE_STR: { |
1622 | const char *str_arg = args; |
1623 | size_t len = strlen(str_arg); |
1624 | args += len + 1; |
1625 | str = string(str, end, (char *)str_arg, spec); |
1626 | break; |
1627 | } |
1628 | |
1629 | case FORMAT_TYPE_PTR: |
1630 | str = pointer(fmt+1, str, end, get_arg(void *), spec); |
1631 | while (isalnum(*fmt)) |
1632 | fmt++; |
1633 | break; |
1634 | |
1635 | case FORMAT_TYPE_PERCENT_CHAR: |
1636 | if (str < end) |
1637 | *str = '%'; |
1638 | ++str; |
1639 | break; |
1640 | |
1641 | case FORMAT_TYPE_INVALID: |
1642 | if (str < end) |
1643 | *str = '%'; |
1644 | ++str; |
1645 | break; |
1646 | |
1647 | case FORMAT_TYPE_NRCHARS: |
1648 | /* skip */ |
1649 | break; |
1650 | |
1651 | default: |
1652 | switch (spec.type) { |
1653 | |
1654 | case FORMAT_TYPE_LONG_LONG: |
1655 | num = get_arg(long long); |
1656 | break; |
1657 | case FORMAT_TYPE_ULONG: |
1658 | num = get_arg(unsigned long); |
1659 | break; |
1660 | case FORMAT_TYPE_LONG: |
1661 | num = get_arg(unsigned long); |
1662 | break; |
1663 | case FORMAT_TYPE_SIZE_T: |
1664 | num = get_arg(size_t); |
1665 | break; |
1666 | case FORMAT_TYPE_PTRDIFF: |
1667 | num = get_arg(ptrdiff_t); |
1668 | break; |
1669 | case FORMAT_TYPE_UBYTE: |
1670 | num = get_arg(unsigned char); |
1671 | break; |
1672 | case FORMAT_TYPE_BYTE: |
1673 | num = get_arg(signed char); |
1674 | break; |
1675 | case FORMAT_TYPE_USHORT: |
1676 | num = get_arg(unsigned short); |
1677 | break; |
1678 | case FORMAT_TYPE_SHORT: |
1679 | num = get_arg(short); |
1680 | break; |
1681 | case FORMAT_TYPE_UINT: |
1682 | num = get_arg(unsigned int); |
1683 | break; |
1684 | default: |
1685 | num = get_arg(int); |
1686 | } |
1687 | |
1688 | str = number(str, end, num, spec); |
1689 | } |
1690 | } |
1691 | |
1692 | if (size > 0) { |
1693 | if (str < end) |
1694 | *str = '\0'; |
1695 | else |
1696 | end[-1] = '\0'; |
1697 | } |
1698 | |
1699 | #undef get_arg |
1700 | |
1701 | /* the trailing null byte doesn't count towards the total */ |
1702 | return str - buf; |
1703 | } |
1704 | EXPORT_SYMBOL_GPL(bstr_printf); |
1705 | |
1706 | /** |
1707 | * bprintf - Parse a format string and place args' binary value in a buffer |
1708 | * @bin_buf: The buffer to place args' binary value |
1709 | * @size: The size of the buffer(by words(32bits), not characters) |
1710 | * @fmt: The format string to use |
1711 | * @...: Arguments for the format string |
1712 | * |
1713 | * The function returns the number of words(u32) written |
1714 | * into @bin_buf. |
1715 | */ |
1716 | int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...) |
1717 | { |
1718 | va_list args; |
1719 | int ret; |
1720 | |
1721 | va_start(args, fmt); |
1722 | ret = vbin_printf(bin_buf, size, fmt, args); |
1723 | va_end(args); |
1724 | return ret; |
1725 | } |
1726 | EXPORT_SYMBOL_GPL(bprintf); |
1727 | |
1728 | #endif /* CONFIG_BINARY_PRINTF */ |
1729 | |
1730 | /** |
1731 | * vsscanf - Unformat a buffer into a list of arguments |
1732 | * @buf: input buffer |
1733 | * @fmt: format of buffer |
1734 | * @args: arguments |
1735 | */ |
1736 | int vsscanf(const char * buf, const char * fmt, va_list args) |
1737 | { |
1738 | const char *str = buf; |
1739 | char *next; |
1740 | char digit; |
1741 | int num = 0; |
1742 | int qualifier; |
1743 | int base; |
1744 | int field_width; |
1745 | int is_sign = 0; |
1746 | |
1747 | while(*fmt && *str) { |
1748 | /* skip any white space in format */ |
1749 | /* white space in format matchs any amount of |
1750 | * white space, including none, in the input. |
1751 | */ |
1752 | if (isspace(*fmt)) { |
1753 | while (isspace(*fmt)) |
1754 | ++fmt; |
1755 | while (isspace(*str)) |
1756 | ++str; |
1757 | } |
1758 | |
1759 | /* anything that is not a conversion must match exactly */ |
1760 | if (*fmt != '%' && *fmt) { |
1761 | if (*fmt++ != *str++) |
1762 | break; |
1763 | continue; |
1764 | } |
1765 | |
1766 | if (!*fmt) |
1767 | break; |
1768 | ++fmt; |
1769 | |
1770 | /* skip this conversion. |
1771 | * advance both strings to next white space |
1772 | */ |
1773 | if (*fmt == '*') { |
1774 | while (!isspace(*fmt) && *fmt != '%' && *fmt) |
1775 | fmt++; |
1776 | while (!isspace(*str) && *str) |
1777 | str++; |
1778 | continue; |
1779 | } |
1780 | |
1781 | /* get field width */ |
1782 | field_width = -1; |
1783 | if (isdigit(*fmt)) |
1784 | field_width = skip_atoi(&fmt); |
1785 | |
1786 | /* get conversion qualifier */ |
1787 | qualifier = -1; |
1788 | if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' || |
1789 | *fmt == 'Z' || *fmt == 'z') { |
1790 | qualifier = *fmt++; |
1791 | if (unlikely(qualifier == *fmt)) { |
1792 | if (qualifier == 'h') { |
1793 | qualifier = 'H'; |
1794 | fmt++; |
1795 | } else if (qualifier == 'l') { |
1796 | qualifier = 'L'; |
1797 | fmt++; |
1798 | } |
1799 | } |
1800 | } |
1801 | base = 10; |
1802 | is_sign = 0; |
1803 | |
1804 | if (!*fmt || !*str) |
1805 | break; |
1806 | |
1807 | switch(*fmt++) { |
1808 | case 'c': |
1809 | { |
1810 | char *s = (char *) va_arg(args,char*); |
1811 | if (field_width == -1) |
1812 | field_width = 1; |
1813 | do { |
1814 | *s++ = *str++; |
1815 | } while (--field_width > 0 && *str); |
1816 | num++; |
1817 | } |
1818 | continue; |
1819 | case 's': |
1820 | { |
1821 | char *s = (char *) va_arg(args, char *); |
1822 | if(field_width == -1) |
1823 | field_width = INT_MAX; |
1824 | /* first, skip leading white space in buffer */ |
1825 | while (isspace(*str)) |
1826 | str++; |
1827 | |
1828 | /* now copy until next white space */ |
1829 | while (*str && !isspace(*str) && field_width--) { |
1830 | *s++ = *str++; |
1831 | } |
1832 | *s = '\0'; |
1833 | num++; |
1834 | } |
1835 | continue; |
1836 | case 'n': |
1837 | /* return number of characters read so far */ |
1838 | { |
1839 | int *i = (int *)va_arg(args,int*); |
1840 | *i = str - buf; |
1841 | } |
1842 | continue; |
1843 | case 'o': |
1844 | base = 8; |
1845 | break; |
1846 | case 'x': |
1847 | case 'X': |
1848 | base = 16; |
1849 | break; |
1850 | case 'i': |
1851 | base = 0; |
1852 | case 'd': |
1853 | is_sign = 1; |
1854 | case 'u': |
1855 | break; |
1856 | case '%': |
1857 | /* looking for '%' in str */ |
1858 | if (*str++ != '%') |
1859 | return num; |
1860 | continue; |
1861 | default: |
1862 | /* invalid format; stop here */ |
1863 | return num; |
1864 | } |
1865 | |
1866 | /* have some sort of integer conversion. |
1867 | * first, skip white space in buffer. |
1868 | */ |
1869 | while (isspace(*str)) |
1870 | str++; |
1871 | |
1872 | digit = *str; |
1873 | if (is_sign && digit == '-') |
1874 | digit = *(str + 1); |
1875 | |
1876 | if (!digit |
1877 | || (base == 16 && !isxdigit(digit)) |
1878 | || (base == 10 && !isdigit(digit)) |
1879 | || (base == 8 && (!isdigit(digit) || digit > '7')) |
1880 | || (base == 0 && !isdigit(digit))) |
1881 | break; |
1882 | |
1883 | switch(qualifier) { |
1884 | case 'H': /* that's 'hh' in format */ |
1885 | if (is_sign) { |
1886 | signed char *s = (signed char *) va_arg(args,signed char *); |
1887 | *s = (signed char) simple_strtol(str,&next,base); |
1888 | } else { |
1889 | unsigned char *s = (unsigned char *) va_arg(args, unsigned char *); |
1890 | *s = (unsigned char) simple_strtoul(str, &next, base); |
1891 | } |
1892 | break; |
1893 | case 'h': |
1894 | if (is_sign) { |
1895 | short *s = (short *) va_arg(args,short *); |
1896 | *s = (short) simple_strtol(str,&next,base); |
1897 | } else { |
1898 | unsigned short *s = (unsigned short *) va_arg(args, unsigned short *); |
1899 | *s = (unsigned short) simple_strtoul(str, &next, base); |
1900 | } |
1901 | break; |
1902 | case 'l': |
1903 | if (is_sign) { |
1904 | long *l = (long *) va_arg(args,long *); |
1905 | *l = simple_strtol(str,&next,base); |
1906 | } else { |
1907 | unsigned long *l = (unsigned long*) va_arg(args,unsigned long*); |
1908 | *l = simple_strtoul(str,&next,base); |
1909 | } |
1910 | break; |
1911 | case 'L': |
1912 | if (is_sign) { |
1913 | long long *l = (long long*) va_arg(args,long long *); |
1914 | *l = simple_strtoll(str,&next,base); |
1915 | } else { |
1916 | unsigned long long *l = (unsigned long long*) va_arg(args,unsigned long long*); |
1917 | *l = simple_strtoull(str,&next,base); |
1918 | } |
1919 | break; |
1920 | case 'Z': |
1921 | case 'z': |
1922 | { |
1923 | size_t *s = (size_t*) va_arg(args,size_t*); |
1924 | *s = (size_t) simple_strtoul(str,&next,base); |
1925 | } |
1926 | break; |
1927 | default: |
1928 | if (is_sign) { |
1929 | int *i = (int *) va_arg(args, int*); |
1930 | *i = (int) simple_strtol(str,&next,base); |
1931 | } else { |
1932 | unsigned int *i = (unsigned int*) va_arg(args, unsigned int*); |
1933 | *i = (unsigned int) simple_strtoul(str,&next,base); |
1934 | } |
1935 | break; |
1936 | } |
1937 | num++; |
1938 | |
1939 | if (!next) |
1940 | break; |
1941 | str = next; |
1942 | } |
1943 | |
1944 | /* |
1945 | * Now we've come all the way through so either the input string or the |
1946 | * format ended. In the former case, there can be a %n at the current |
1947 | * position in the format that needs to be filled. |
1948 | */ |
1949 | if (*fmt == '%' && *(fmt + 1) == 'n') { |
1950 | int *p = (int *)va_arg(args, int *); |
1951 | *p = str - buf; |
1952 | } |
1953 | |
1954 | return num; |
1955 | } |
1956 | EXPORT_SYMBOL(vsscanf); |
1957 | |
1958 | /** |
1959 | * sscanf - Unformat a buffer into a list of arguments |
1960 | * @buf: input buffer |
1961 | * @fmt: formatting of buffer |
1962 | * @...: resulting arguments |
1963 | */ |
1964 | int sscanf(const char * buf, const char * fmt, ...) |
1965 | { |
1966 | va_list args; |
1967 | int i; |
1968 | |
1969 | va_start(args,fmt); |
1970 | i = vsscanf(buf,fmt,args); |
1971 | va_end(args); |
1972 | return i; |
1973 | } |
1974 | EXPORT_SYMBOL(sscanf); |
1975 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9