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Remove math-finite.h
[glibc.git] / stdio-common / vfprintf-internal.c
blob547a3a868b4668bf615cf3f39a92e3c11cbb98ad
1 /* Copyright (C) 1991-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <array_length.h>
19 #include <ctype.h>
20 #include <limits.h>
21 #include <printf.h>
22 #include <stdarg.h>
23 #include <stdint.h>
24 #include <stdlib.h>
25 #include <string.h>
26 #include <errno.h>
27 #include <wchar.h>
28 #include <libc-lock.h>
29 #include <sys/param.h>
30 #include <_itoa.h>
31 #include <locale/localeinfo.h>
32 #include <stdio.h>
33 #include <scratch_buffer.h>
34
35 /* This code is shared between the standard stdio implementation found
36 in GNU C library and the libio implementation originally found in
37 GNU libg++.
38
39 Beside this it is also shared between the normal and wide character
40 implementation as defined in ISO/IEC 9899:1990/Amendment 1:1995. */
41
42 #include <libioP.h>
43
44 #ifdef COMPILE_WPRINTF
45 #include <wctype.h>
46 #endif
47
48 /* In some cases we need extra space for all the output which is not
49 counted in the width of the string. We assume 32 characters is
50 enough. */
51 #define EXTSIZ 32
52 #define ARGCHECK(S, Format) \
53 do \
54 { \
55 /* Check file argument for consistence. */ \
56 CHECK_FILE (S, -1); \
57 if (S->_flags & _IO_NO_WRITES) \
58 { \
59 S->_flags |= _IO_ERR_SEEN; \
60 __set_errno (EBADF); \
61 return -1; \
62 } \
63 if (Format == NULL) \
64 { \
65 __set_errno (EINVAL); \
66 return -1; \
67 } \
68 } while (0)
69 #define UNBUFFERED_P(S) ((S)->_flags & _IO_UNBUFFERED)
70
71 #if __HAVE_FLOAT128_UNLIKE_LDBL
72 # define PARSE_FLOAT_VA_ARG_EXTENDED(INFO) \
73 do \
74 { \
75 if (is_long_double \
76 && (mode_flags & PRINTF_LDBL_USES_FLOAT128) != 0) \
77 { \
78 INFO.is_binary128 = 1; \
79 the_arg.pa_float128 = va_arg (ap, _Float128); \
80 } \
81 else \
82 { \
83 PARSE_FLOAT_VA_ARG (INFO); \
84 } \
85 } \
86 while (0)
87 #else
88 # define PARSE_FLOAT_VA_ARG_EXTENDED(INFO) \
89 PARSE_FLOAT_VA_ARG (INFO);
90 #endif
91
92 #define PARSE_FLOAT_VA_ARG(INFO) \
93 do \
94 { \
95 INFO.is_binary128 = 0; \
96 if (is_long_double) \
97 the_arg.pa_long_double = va_arg (ap, long double); \
98 else \
99 the_arg.pa_double = va_arg (ap, double); \
100 } \
101 while (0)
102
103 #if __HAVE_FLOAT128_UNLIKE_LDBL
104 # define SETUP_FLOAT128_INFO(INFO) \
105 do \
106 { \
107 if ((mode_flags & PRINTF_LDBL_USES_FLOAT128) != 0) \
108 INFO.is_binary128 = is_long_double; \
109 else \
110 INFO.is_binary128 = 0; \
111 } \
112 while (0)
113 #else
114 # define SETUP_FLOAT128_INFO(INFO) \
115 do \
116 { \
117 INFO.is_binary128 = 0; \
118 } \
119 while (0)
120 #endif
121
122 #define done_add(val) \
123 do { \
124 unsigned int _val = val; \
125 assert ((unsigned int) done < (unsigned int) INT_MAX); \
126 if (__glibc_unlikely (INT_MAX - done < _val)) \
127 { \
128 done = -1; \
129 __set_errno (EOVERFLOW); \
130 goto all_done; \
131 } \
132 done += _val; \
133 } while (0)
134
135 #ifndef COMPILE_WPRINTF
136 # define vfprintf __vfprintf_internal
137 # define CHAR_T char
138 # define UCHAR_T unsigned char
139 # define INT_T int
140 typedef const char *THOUSANDS_SEP_T;
141 # define L_(Str) Str
142 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - '0') < 10)
143 # define STR_LEN(Str) strlen (Str)
144
145 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
146 # define PAD(Padchar) \
147 do { \
148 if (width > 0) \
149 { \
150 ssize_t written = _IO_padn (s, (Padchar), width); \
151 if (__glibc_unlikely (written != width)) \
152 { \
153 done = -1; \
154 goto all_done; \
155 } \
156 done_add (written); \
157 } \
158 } while (0)
159 # define PUTC(C, F) _IO_putc_unlocked (C, F)
160 # define ORIENT if (_IO_vtable_offset (s) == 0 && _IO_fwide (s, -1) != -1)\
161 return -1
162 #else
163 # define vfprintf __vfwprintf_internal
164 # define CHAR_T wchar_t
165 /* This is a hack!!! There should be a type uwchar_t. */
166 # define UCHAR_T unsigned int /* uwchar_t */
167 # define INT_T wint_t
168 typedef wchar_t THOUSANDS_SEP_T;
169 # define L_(Str) L##Str
170 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - L'0') < 10)
171 # define STR_LEN(Str) __wcslen (Str)
172
173 # include <_itowa.h>
174
175 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
176 # define PAD(Padchar) \
177 do { \
178 if (width > 0) \
179 { \
180 ssize_t written = _IO_wpadn (s, (Padchar), width); \
181 if (__glibc_unlikely (written != width)) \
182 { \
183 done = -1; \
184 goto all_done; \
185 } \
186 done_add (written); \
187 } \
188 } while (0)
189 # define PUTC(C, F) _IO_putwc_unlocked (C, F)
190 # define ORIENT if (_IO_fwide (s, 1) != 1) return -1
191
192 # undef _itoa
193 # define _itoa(Val, Buf, Base, Case) _itowa (Val, Buf, Base, Case)
194 # define _itoa_word(Val, Buf, Base, Case) _itowa_word (Val, Buf, Base, Case)
195 # undef EOF
196 # define EOF WEOF
197 #endif
198
199 #include "_i18n_number.h"
200
201 /* Include the shared code for parsing the format string. */
202 #include "printf-parse.h"
203
204
205 #define outchar(Ch) \
206 do \
207 { \
208 const INT_T outc = (Ch); \
209 if (PUTC (outc, s) == EOF || done == INT_MAX) \
210 { \
211 done = -1; \
212 goto all_done; \
213 } \
214 ++done; \
215 } \
216 while (0)
217
218 #define outstring(String, Len) \
219 do \
220 { \
221 assert ((size_t) done <= (size_t) INT_MAX); \
222 if ((size_t) PUT (s, (String), (Len)) != (size_t) (Len)) \
223 { \
224 done = -1; \
225 goto all_done; \
226 } \
227 if (__glibc_unlikely (INT_MAX - done < (Len))) \
228 { \
229 done = -1; \
230 __set_errno (EOVERFLOW); \
231 goto all_done; \
232 } \
233 done += (Len); \
234 } \
235 while (0)
236
237 /* For handling long_double and longlong we use the same flag. If
238 `long' and `long long' are effectively the same type define it to
239 zero. */
240 #if LONG_MAX == LONG_LONG_MAX
241 # define is_longlong 0
242 #else
243 # define is_longlong is_long_double
244 #endif
245
246 /* If `long' and `int' is effectively the same type we don't have to
247 handle `long separately. */
248 #if INT_MAX == LONG_MAX
249 # define is_long_num 0
250 #else
251 # define is_long_num is_long
252 #endif
253
254
255 /* Global constants. */
256 static const CHAR_T null[] = L_("(null)");
257
258 /* Size of the work_buffer variable (in characters, not bytes. */
259 enum { WORK_BUFFER_SIZE = 1000 / sizeof (CHAR_T) };
260
261 /* This table maps a character into a number representing a class. In
262 each step there is a destination label for each class. */
263 static const uint8_t jump_table[] =
264 {
265 /* ' ' */ 1, 0, 0, /* '#' */ 4,
266 0, /* '%' */ 14, 0, /* '\''*/ 6,
267 0, 0, /* '*' */ 7, /* '+' */ 2,
268 0, /* '-' */ 3, /* '.' */ 9, 0,
269 /* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
270 /* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
271 /* '8' */ 8, /* '9' */ 8, 0, 0,
272 0, 0, 0, 0,
273 0, /* 'A' */ 26, 0, /* 'C' */ 25,
274 0, /* 'E' */ 19, /* F */ 19, /* 'G' */ 19,
275 0, /* 'I' */ 29, 0, 0,
276 /* 'L' */ 12, 0, 0, 0,
277 0, 0, 0, /* 'S' */ 21,
278 0, 0, 0, 0,
279 /* 'X' */ 18, 0, /* 'Z' */ 13, 0,
280 0, 0, 0, 0,
281 0, /* 'a' */ 26, 0, /* 'c' */ 20,
282 /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
283 /* 'h' */ 10, /* 'i' */ 15, /* 'j' */ 28, 0,
284 /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
285 /* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
286 /* 't' */ 27, /* 'u' */ 16, 0, 0,
287 /* 'x' */ 18, 0, /* 'z' */ 13
288 };
289
290 #define NOT_IN_JUMP_RANGE(Ch) ((Ch) < L_(' ') || (Ch) > L_('z'))
291 #define CHAR_CLASS(Ch) (jump_table[(INT_T) (Ch) - L_(' ')])
292 #define LABEL(Name) do_##Name
293 #ifdef SHARED
294 /* 'int' is enough and it saves some space on 64 bit systems. */
295 # define JUMP_TABLE_TYPE const int
296 # define JUMP_TABLE_BASE_LABEL do_form_unknown
297 # define REF(Name) &&do_##Name - &&JUMP_TABLE_BASE_LABEL
298 # define JUMP(ChExpr, table) \
299 do \
300 { \
301 int offset; \
302 void *ptr; \
303 spec = (ChExpr); \
304 offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
305 : table[CHAR_CLASS (spec)]; \
306 ptr = &&JUMP_TABLE_BASE_LABEL + offset; \
307 goto *ptr; \
308 } \
309 while (0)
310 #else
311 # define JUMP_TABLE_TYPE const void *const
312 # define REF(Name) &&do_##Name
313 # define JUMP(ChExpr, table) \
314 do \
315 { \
316 const void *ptr; \
317 spec = (ChExpr); \
318 ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
319 : table[CHAR_CLASS (spec)]; \
320 goto *ptr; \
321 } \
322 while (0)
323 #endif
324
325 #define STEP0_3_TABLE \
326 /* Step 0: at the beginning. */ \
327 static JUMP_TABLE_TYPE step0_jumps[30] = \
328 { \
329 REF (form_unknown), \
330 REF (flag_space), /* for ' ' */ \
331 REF (flag_plus), /* for '+' */ \
332 REF (flag_minus), /* for '-' */ \
333 REF (flag_hash), /* for '<hash>' */ \
334 REF (flag_zero), /* for '0' */ \
335 REF (flag_quote), /* for '\'' */ \
336 REF (width_asterics), /* for '*' */ \
337 REF (width), /* for '1'...'9' */ \
338 REF (precision), /* for '.' */ \
339 REF (mod_half), /* for 'h' */ \
340 REF (mod_long), /* for 'l' */ \
341 REF (mod_longlong), /* for 'L', 'q' */ \
342 REF (mod_size_t), /* for 'z', 'Z' */ \
343 REF (form_percent), /* for '%' */ \
344 REF (form_integer), /* for 'd', 'i' */ \
345 REF (form_unsigned), /* for 'u' */ \
346 REF (form_octal), /* for 'o' */ \
347 REF (form_hexa), /* for 'X', 'x' */ \
348 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
349 REF (form_character), /* for 'c' */ \
350 REF (form_string), /* for 's', 'S' */ \
351 REF (form_pointer), /* for 'p' */ \
352 REF (form_number), /* for 'n' */ \
353 REF (form_strerror), /* for 'm' */ \
354 REF (form_wcharacter), /* for 'C' */ \
355 REF (form_floathex), /* for 'A', 'a' */ \
356 REF (mod_ptrdiff_t), /* for 't' */ \
357 REF (mod_intmax_t), /* for 'j' */ \
358 REF (flag_i18n), /* for 'I' */ \
359 }; \
360 /* Step 1: after processing width. */ \
361 static JUMP_TABLE_TYPE step1_jumps[30] = \
362 { \
363 REF (form_unknown), \
364 REF (form_unknown), /* for ' ' */ \
365 REF (form_unknown), /* for '+' */ \
366 REF (form_unknown), /* for '-' */ \
367 REF (form_unknown), /* for '<hash>' */ \
368 REF (form_unknown), /* for '0' */ \
369 REF (form_unknown), /* for '\'' */ \
370 REF (form_unknown), /* for '*' */ \
371 REF (form_unknown), /* for '1'...'9' */ \
372 REF (precision), /* for '.' */ \
373 REF (mod_half), /* for 'h' */ \
374 REF (mod_long), /* for 'l' */ \
375 REF (mod_longlong), /* for 'L', 'q' */ \
376 REF (mod_size_t), /* for 'z', 'Z' */ \
377 REF (form_percent), /* for '%' */ \
378 REF (form_integer), /* for 'd', 'i' */ \
379 REF (form_unsigned), /* for 'u' */ \
380 REF (form_octal), /* for 'o' */ \
381 REF (form_hexa), /* for 'X', 'x' */ \
382 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
383 REF (form_character), /* for 'c' */ \
384 REF (form_string), /* for 's', 'S' */ \
385 REF (form_pointer), /* for 'p' */ \
386 REF (form_number), /* for 'n' */ \
387 REF (form_strerror), /* for 'm' */ \
388 REF (form_wcharacter), /* for 'C' */ \
389 REF (form_floathex), /* for 'A', 'a' */ \
390 REF (mod_ptrdiff_t), /* for 't' */ \
391 REF (mod_intmax_t), /* for 'j' */ \
392 REF (form_unknown) /* for 'I' */ \
393 }; \
394 /* Step 2: after processing precision. */ \
395 static JUMP_TABLE_TYPE step2_jumps[30] = \
396 { \
397 REF (form_unknown), \
398 REF (form_unknown), /* for ' ' */ \
399 REF (form_unknown), /* for '+' */ \
400 REF (form_unknown), /* for '-' */ \
401 REF (form_unknown), /* for '<hash>' */ \
402 REF (form_unknown), /* for '0' */ \
403 REF (form_unknown), /* for '\'' */ \
404 REF (form_unknown), /* for '*' */ \
405 REF (form_unknown), /* for '1'...'9' */ \
406 REF (form_unknown), /* for '.' */ \
407 REF (mod_half), /* for 'h' */ \
408 REF (mod_long), /* for 'l' */ \
409 REF (mod_longlong), /* for 'L', 'q' */ \
410 REF (mod_size_t), /* for 'z', 'Z' */ \
411 REF (form_percent), /* for '%' */ \
412 REF (form_integer), /* for 'd', 'i' */ \
413 REF (form_unsigned), /* for 'u' */ \
414 REF (form_octal), /* for 'o' */ \
415 REF (form_hexa), /* for 'X', 'x' */ \
416 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
417 REF (form_character), /* for 'c' */ \
418 REF (form_string), /* for 's', 'S' */ \
419 REF (form_pointer), /* for 'p' */ \
420 REF (form_number), /* for 'n' */ \
421 REF (form_strerror), /* for 'm' */ \
422 REF (form_wcharacter), /* for 'C' */ \
423 REF (form_floathex), /* for 'A', 'a' */ \
424 REF (mod_ptrdiff_t), /* for 't' */ \
425 REF (mod_intmax_t), /* for 'j' */ \
426 REF (form_unknown) /* for 'I' */ \
427 }; \
428 /* Step 3a: after processing first 'h' modifier. */ \
429 static JUMP_TABLE_TYPE step3a_jumps[30] = \
430 { \
431 REF (form_unknown), \
432 REF (form_unknown), /* for ' ' */ \
433 REF (form_unknown), /* for '+' */ \
434 REF (form_unknown), /* for '-' */ \
435 REF (form_unknown), /* for '<hash>' */ \
436 REF (form_unknown), /* for '0' */ \
437 REF (form_unknown), /* for '\'' */ \
438 REF (form_unknown), /* for '*' */ \
439 REF (form_unknown), /* for '1'...'9' */ \
440 REF (form_unknown), /* for '.' */ \
441 REF (mod_halfhalf), /* for 'h' */ \
442 REF (form_unknown), /* for 'l' */ \
443 REF (form_unknown), /* for 'L', 'q' */ \
444 REF (form_unknown), /* for 'z', 'Z' */ \
445 REF (form_percent), /* for '%' */ \
446 REF (form_integer), /* for 'd', 'i' */ \
447 REF (form_unsigned), /* for 'u' */ \
448 REF (form_octal), /* for 'o' */ \
449 REF (form_hexa), /* for 'X', 'x' */ \
450 REF (form_unknown), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
451 REF (form_unknown), /* for 'c' */ \
452 REF (form_unknown), /* for 's', 'S' */ \
453 REF (form_unknown), /* for 'p' */ \
454 REF (form_number), /* for 'n' */ \
455 REF (form_unknown), /* for 'm' */ \
456 REF (form_unknown), /* for 'C' */ \
457 REF (form_unknown), /* for 'A', 'a' */ \
458 REF (form_unknown), /* for 't' */ \
459 REF (form_unknown), /* for 'j' */ \
460 REF (form_unknown) /* for 'I' */ \
461 }; \
462 /* Step 3b: after processing first 'l' modifier. */ \
463 static JUMP_TABLE_TYPE step3b_jumps[30] = \
464 { \
465 REF (form_unknown), \
466 REF (form_unknown), /* for ' ' */ \
467 REF (form_unknown), /* for '+' */ \
468 REF (form_unknown), /* for '-' */ \
469 REF (form_unknown), /* for '<hash>' */ \
470 REF (form_unknown), /* for '0' */ \
471 REF (form_unknown), /* for '\'' */ \
472 REF (form_unknown), /* for '*' */ \
473 REF (form_unknown), /* for '1'...'9' */ \
474 REF (form_unknown), /* for '.' */ \
475 REF (form_unknown), /* for 'h' */ \
476 REF (mod_longlong), /* for 'l' */ \
477 REF (form_unknown), /* for 'L', 'q' */ \
478 REF (form_unknown), /* for 'z', 'Z' */ \
479 REF (form_percent), /* for '%' */ \
480 REF (form_integer), /* for 'd', 'i' */ \
481 REF (form_unsigned), /* for 'u' */ \
482 REF (form_octal), /* for 'o' */ \
483 REF (form_hexa), /* for 'X', 'x' */ \
484 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
485 REF (form_character), /* for 'c' */ \
486 REF (form_string), /* for 's', 'S' */ \
487 REF (form_pointer), /* for 'p' */ \
488 REF (form_number), /* for 'n' */ \
489 REF (form_strerror), /* for 'm' */ \
490 REF (form_wcharacter), /* for 'C' */ \
491 REF (form_floathex), /* for 'A', 'a' */ \
492 REF (form_unknown), /* for 't' */ \
493 REF (form_unknown), /* for 'j' */ \
494 REF (form_unknown) /* for 'I' */ \
495 }
496
497 #define STEP4_TABLE \
498 /* Step 4: processing format specifier. */ \
499 static JUMP_TABLE_TYPE step4_jumps[30] = \
500 { \
501 REF (form_unknown), \
502 REF (form_unknown), /* for ' ' */ \
503 REF (form_unknown), /* for '+' */ \
504 REF (form_unknown), /* for '-' */ \
505 REF (form_unknown), /* for '<hash>' */ \
506 REF (form_unknown), /* for '0' */ \
507 REF (form_unknown), /* for '\'' */ \
508 REF (form_unknown), /* for '*' */ \
509 REF (form_unknown), /* for '1'...'9' */ \
510 REF (form_unknown), /* for '.' */ \
511 REF (form_unknown), /* for 'h' */ \
512 REF (form_unknown), /* for 'l' */ \
513 REF (form_unknown), /* for 'L', 'q' */ \
514 REF (form_unknown), /* for 'z', 'Z' */ \
515 REF (form_percent), /* for '%' */ \
516 REF (form_integer), /* for 'd', 'i' */ \
517 REF (form_unsigned), /* for 'u' */ \
518 REF (form_octal), /* for 'o' */ \
519 REF (form_hexa), /* for 'X', 'x' */ \
520 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
521 REF (form_character), /* for 'c' */ \
522 REF (form_string), /* for 's', 'S' */ \
523 REF (form_pointer), /* for 'p' */ \
524 REF (form_number), /* for 'n' */ \
525 REF (form_strerror), /* for 'm' */ \
526 REF (form_wcharacter), /* for 'C' */ \
527 REF (form_floathex), /* for 'A', 'a' */ \
528 REF (form_unknown), /* for 't' */ \
529 REF (form_unknown), /* for 'j' */ \
530 REF (form_unknown) /* for 'I' */ \
531 }
532
533
534 #define process_arg(fspec) \
535 /* Start real work. We know about all flags and modifiers and \
536 now process the wanted format specifier. */ \
537 LABEL (form_percent): \
538 /* Write a literal "%". */ \
539 outchar (L_('%')); \
540 break; \
541 \
542 LABEL (form_integer): \
543 /* Signed decimal integer. */ \
544 base = 10; \
545 \
546 if (is_longlong) \
547 { \
548 long long int signed_number; \
549 \
550 if (fspec == NULL) \
551 signed_number = va_arg (ap, long long int); \
552 else \
553 signed_number = args_value[fspec->data_arg].pa_long_long_int; \
554 \
555 is_negative = signed_number < 0; \
556 number.longlong = is_negative ? (- signed_number) : signed_number; \
557 \
558 goto LABEL (longlong_number); \
559 } \
560 else \
561 { \
562 long int signed_number; \
563 \
564 if (fspec == NULL) \
565 { \
566 if (is_long_num) \
567 signed_number = va_arg (ap, long int); \
568 else if (is_char) \
569 signed_number = (signed char) va_arg (ap, unsigned int); \
570 else if (!is_short) \
571 signed_number = va_arg (ap, int); \
572 else \
573 signed_number = (short int) va_arg (ap, unsigned int); \
574 } \
575 else \
576 if (is_long_num) \
577 signed_number = args_value[fspec->data_arg].pa_long_int; \
578 else if (is_char) \
579 signed_number = (signed char) \
580 args_value[fspec->data_arg].pa_u_int; \
581 else if (!is_short) \
582 signed_number = args_value[fspec->data_arg].pa_int; \
583 else \
584 signed_number = (short int) \
585 args_value[fspec->data_arg].pa_u_int; \
586 \
587 is_negative = signed_number < 0; \
588 number.word = is_negative ? (- signed_number) : signed_number; \
589 \
590 goto LABEL (number); \
591 } \
592 /* NOTREACHED */ \
593 \
594 LABEL (form_unsigned): \
595 /* Unsigned decimal integer. */ \
596 base = 10; \
597 goto LABEL (unsigned_number); \
598 /* NOTREACHED */ \
599 \
600 LABEL (form_octal): \
601 /* Unsigned octal integer. */ \
602 base = 8; \
603 goto LABEL (unsigned_number); \
604 /* NOTREACHED */ \
605 \
606 LABEL (form_hexa): \
607 /* Unsigned hexadecimal integer. */ \
608 base = 16; \
609 \
610 LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
611 \
612 /* ISO specifies the `+' and ` ' flags only for signed \
613 conversions. */ \
614 is_negative = 0; \
615 showsign = 0; \
616 space = 0; \
617 \
618 if (is_longlong) \
619 { \
620 if (fspec == NULL) \
621 number.longlong = va_arg (ap, unsigned long long int); \
622 else \
623 number.longlong = args_value[fspec->data_arg].pa_u_long_long_int; \
624 \
625 LABEL (longlong_number): \
626 if (prec < 0) \
627 /* Supply a default precision if none was given. */ \
628 prec = 1; \
629 else \
630 /* We have to take care for the '0' flag. If a precision \
631 is given it must be ignored. */ \
632 pad = L_(' '); \
633 \
634 /* If the precision is 0 and the number is 0 nothing has to \
635 be written for the number, except for the 'o' format in \
636 alternate form. */ \
637 if (prec == 0 && number.longlong == 0) \
638 { \
639 string = workend; \
640 if (base == 8 && alt) \
641 *--string = L_('0'); \
642 } \
643 else \
644 { \
645 /* Put the number in WORK. */ \
646 string = _itoa (number.longlong, workend, base, \
647 spec == L_('X')); \
648 if (group && grouping) \
649 string = group_number (work_buffer, string, workend, \
650 grouping, thousands_sep); \
651 if (use_outdigits && base == 10) \
652 string = _i18n_number_rewrite (string, workend, workend); \
653 } \
654 /* Simplify further test for num != 0. */ \
655 number.word = number.longlong != 0; \
656 } \
657 else \
658 { \
659 if (fspec == NULL) \
660 { \
661 if (is_long_num) \
662 number.word = va_arg (ap, unsigned long int); \
663 else if (is_char) \
664 number.word = (unsigned char) va_arg (ap, unsigned int); \
665 else if (!is_short) \
666 number.word = va_arg (ap, unsigned int); \
667 else \
668 number.word = (unsigned short int) va_arg (ap, unsigned int); \
669 } \
670 else \
671 if (is_long_num) \
672 number.word = args_value[fspec->data_arg].pa_u_long_int; \
673 else if (is_char) \
674 number.word = (unsigned char) \
675 args_value[fspec->data_arg].pa_u_int; \
676 else if (!is_short) \
677 number.word = args_value[fspec->data_arg].pa_u_int; \
678 else \
679 number.word = (unsigned short int) \
680 args_value[fspec->data_arg].pa_u_int; \
681 \
682 LABEL (number): \
683 if (prec < 0) \
684 /* Supply a default precision if none was given. */ \
685 prec = 1; \
686 else \
687 /* We have to take care for the '0' flag. If a precision \
688 is given it must be ignored. */ \
689 pad = L_(' '); \
690 \
691 /* If the precision is 0 and the number is 0 nothing has to \
692 be written for the number, except for the 'o' format in \
693 alternate form. */ \
694 if (prec == 0 && number.word == 0) \
695 { \
696 string = workend; \
697 if (base == 8 && alt) \
698 *--string = L_('0'); \
699 } \
700 else \
701 { \
702 /* Put the number in WORK. */ \
703 string = _itoa_word (number.word, workend, base, \
704 spec == L_('X')); \
705 if (group && grouping) \
706 string = group_number (work_buffer, string, workend, \
707 grouping, thousands_sep); \
708 if (use_outdigits && base == 10) \
709 string = _i18n_number_rewrite (string, workend, workend); \
710 } \
711 } \
712 \
713 if (prec <= workend - string && number.word != 0 && alt && base == 8) \
714 /* Add octal marker. */ \
715 *--string = L_('0'); \
716 \
717 prec = MAX (0, prec - (workend - string)); \
718 \
719 if (!left) \
720 { \
721 width -= workend - string + prec; \
722 \
723 if (number.word != 0 && alt && base == 16) \
724 /* Account for 0X hex marker. */ \
725 width -= 2; \
726 \
727 if (is_negative || showsign || space) \
728 --width; \
729 \
730 if (pad == L_(' ')) \
731 { \
732 PAD (L_(' ')); \
733 width = 0; \
734 } \
735 \
736 if (is_negative) \
737 outchar (L_('-')); \
738 else if (showsign) \
739 outchar (L_('+')); \
740 else if (space) \
741 outchar (L_(' ')); \
742 \
743 if (number.word != 0 && alt && base == 16) \
744 { \
745 outchar (L_('0')); \
746 outchar (spec); \
747 } \
748 \
749 width += prec; \
750 PAD (L_('0')); \
751 \
752 outstring (string, workend - string); \
753 \
754 break; \
755 } \
756 else \
757 { \
758 if (is_negative) \
759 { \
760 outchar (L_('-')); \
761 --width; \
762 } \
763 else if (showsign) \
764 { \
765 outchar (L_('+')); \
766 --width; \
767 } \
768 else if (space) \
769 { \
770 outchar (L_(' ')); \
771 --width; \
772 } \
773 \
774 if (number.word != 0 && alt && base == 16) \
775 { \
776 outchar (L_('0')); \
777 outchar (spec); \
778 width -= 2; \
779 } \
780 \
781 width -= workend - string + prec; \
782 \
783 if (prec > 0) \
784 { \
785 int temp = width; \
786 width = prec; \
787 PAD (L_('0')); \
788 width = temp; \
789 } \
790 \
791 outstring (string, workend - string); \
792 \
793 PAD (L_(' ')); \
794 break; \
795 } \
796 \
797 LABEL (form_float): \
798 { \
799 /* Floating-point number. This is handled by printf_fp.c. */ \
800 const void *ptr; \
801 int function_done; \
802 \
803 if (fspec == NULL) \
804 { \
805 if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0)) \
806 is_long_double = 0; \
807 \
808 struct printf_info info = { .prec = prec, \
809 .width = width, \
810 .spec = spec, \
811 .is_long_double = is_long_double, \
812 .is_short = is_short, \
813 .is_long = is_long, \
814 .alt = alt, \
815 .space = space, \
816 .left = left, \
817 .showsign = showsign, \
818 .group = group, \
819 .pad = pad, \
820 .extra = 0, \
821 .i18n = use_outdigits, \
822 .wide = sizeof (CHAR_T) != 1, \
823 .is_binary128 = 0}; \
824 \
825 PARSE_FLOAT_VA_ARG_EXTENDED (info); \
826 ptr = (const void *) &the_arg; \
827 \
828 function_done = __printf_fp (s, &info, &ptr); \
829 } \
830 else \
831 { \
832 ptr = (const void *) &args_value[fspec->data_arg]; \
833 if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0)) \
834 { \
835 fspec->data_arg_type = PA_DOUBLE; \
836 fspec->info.is_long_double = 0; \
837 } \
838 SETUP_FLOAT128_INFO (fspec->info); \
839 \
840 function_done = __printf_fp (s, &fspec->info, &ptr); \
841 } \
842 \
843 if (function_done < 0) \
844 { \
845 /* Error in print handler; up to handler to set errno. */ \
846 done = -1; \
847 goto all_done; \
848 } \
849 \
850 done_add (function_done); \
851 } \
852 break; \
853 \
854 LABEL (form_floathex): \
855 { \
856 /* Floating point number printed as hexadecimal number. */ \
857 const void *ptr; \
858 int function_done; \
859 \
860 if (fspec == NULL) \
861 { \
862 if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0)) \
863 is_long_double = 0; \
864 \
865 struct printf_info info = { .prec = prec, \
866 .width = width, \
867 .spec = spec, \
868 .is_long_double = is_long_double, \
869 .is_short = is_short, \
870 .is_long = is_long, \
871 .alt = alt, \
872 .space = space, \
873 .left = left, \
874 .showsign = showsign, \
875 .group = group, \
876 .pad = pad, \
877 .extra = 0, \
878 .wide = sizeof (CHAR_T) != 1, \
879 .is_binary128 = 0}; \
880 \
881 PARSE_FLOAT_VA_ARG_EXTENDED (info); \
882 ptr = (const void *) &the_arg; \
883 \
884 function_done = __printf_fphex (s, &info, &ptr); \
885 } \
886 else \
887 { \
888 ptr = (const void *) &args_value[fspec->data_arg]; \
889 if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0)) \
890 fspec->info.is_long_double = 0; \
891 SETUP_FLOAT128_INFO (fspec->info); \
892 \
893 function_done = __printf_fphex (s, &fspec->info, &ptr); \
894 } \
895 \
896 if (function_done < 0) \
897 { \
898 /* Error in print handler; up to handler to set errno. */ \
899 done = -1; \
900 goto all_done; \
901 } \
902 \
903 done_add (function_done); \
904 } \
905 break; \
906 \
907 LABEL (form_pointer): \
908 /* Generic pointer. */ \
909 { \
910 const void *ptr; \
911 if (fspec == NULL) \
912 ptr = va_arg (ap, void *); \
913 else \
914 ptr = args_value[fspec->data_arg].pa_pointer; \
915 if (ptr != NULL) \
916 { \
917 /* If the pointer is not NULL, write it as a %#x spec. */ \
918 base = 16; \
919 number.word = (unsigned long int) ptr; \
920 is_negative = 0; \
921 alt = 1; \
922 group = 0; \
923 spec = L_('x'); \
924 goto LABEL (number); \
925 } \
926 else \
927 { \
928 /* Write "(nil)" for a nil pointer. */ \
929 string = (CHAR_T *) L_("(nil)"); \
930 /* Make sure the full string "(nil)" is printed. */ \
931 if (prec < 5) \
932 prec = 5; \
933 /* This is a wide string iff compiling wprintf. */ \
934 is_long = sizeof (CHAR_T) > 1; \
935 goto LABEL (print_string); \
936 } \
937 } \
938 /* NOTREACHED */ \
939 \
940 LABEL (form_number): \
941 if ((mode_flags & PRINTF_FORTIFY) != 0) \
942 { \
943 if (! readonly_format) \
944 { \
945 extern int __readonly_area (const void *, size_t) \
946 attribute_hidden; \
947 readonly_format \
948 = __readonly_area (format, ((STR_LEN (format) + 1) \
949 * sizeof (CHAR_T))); \
950 } \
951 if (readonly_format < 0) \
952 __libc_fatal ("*** %n in writable segment detected ***\n"); \
953 } \
954 /* Answer the count of characters written. */ \
955 if (fspec == NULL) \
956 { \
957 if (is_longlong) \
958 *(long long int *) va_arg (ap, void *) = done; \
959 else if (is_long_num) \
960 *(long int *) va_arg (ap, void *) = done; \
961 else if (is_char) \
962 *(char *) va_arg (ap, void *) = done; \
963 else if (!is_short) \
964 *(int *) va_arg (ap, void *) = done; \
965 else \
966 *(short int *) va_arg (ap, void *) = done; \
967 } \
968 else \
969 if (is_longlong) \
970 *(long long int *) args_value[fspec->data_arg].pa_pointer = done; \
971 else if (is_long_num) \
972 *(long int *) args_value[fspec->data_arg].pa_pointer = done; \
973 else if (is_char) \
974 *(char *) args_value[fspec->data_arg].pa_pointer = done; \
975 else if (!is_short) \
976 *(int *) args_value[fspec->data_arg].pa_pointer = done; \
977 else \
978 *(short int *) args_value[fspec->data_arg].pa_pointer = done; \
979 break; \
980 \
981 LABEL (form_strerror): \
982 /* Print description of error ERRNO. */ \
983 string = \
984 (CHAR_T *) __strerror_r (save_errno, (char *) work_buffer, \
985 WORK_BUFFER_SIZE * sizeof (CHAR_T)); \
986 is_long = 0; /* This is no wide-char string. */ \
987 goto LABEL (print_string)
988
989 #ifdef COMPILE_WPRINTF
990 # define process_string_arg(fspec) \
991 LABEL (form_character): \
992 /* Character. */ \
993 if (is_long) \
994 goto LABEL (form_wcharacter); \
995 --width; /* Account for the character itself. */ \
996 if (!left) \
997 PAD (L' '); \
998 if (fspec == NULL) \
999 outchar (__btowc ((unsigned char) va_arg (ap, int))); /* Promoted. */ \
1000 else \
1001 outchar (__btowc ((unsigned char) \
1002 args_value[fspec->data_arg].pa_int)); \
1003 if (left) \
1004 PAD (L' '); \
1005 break; \
1006 \
1007 LABEL (form_wcharacter): \
1008 { \
1009 /* Wide character. */ \
1010 --width; \
1011 if (!left) \
1012 PAD (L' '); \
1013 if (fspec == NULL) \
1014 outchar (va_arg (ap, wchar_t)); \
1015 else \
1016 outchar (args_value[fspec->data_arg].pa_wchar); \
1017 if (left) \
1018 PAD (L' '); \
1019 } \
1020 break; \
1021 \
1022 LABEL (form_string): \
1023 { \
1024 size_t len; \
1025 int string_malloced; \
1026 \
1027 /* The string argument could in fact be `char *' or `wchar_t *'. \
1028 But this should not make a difference here. */ \
1029 if (fspec == NULL) \
1030 string = (CHAR_T *) va_arg (ap, const wchar_t *); \
1031 else \
1032 string = (CHAR_T *) args_value[fspec->data_arg].pa_wstring; \
1033 \
1034 /* Entry point for printing other strings. */ \
1035 LABEL (print_string): \
1036 \
1037 string_malloced = 0; \
1038 if (string == NULL) \
1039 { \
1040 /* Write "(null)" if there's space. */ \
1041 if (prec == -1 || prec >= (int) array_length (null) - 1) \
1042 { \
1043 string = (CHAR_T *) null; \
1044 len = array_length (null) - 1; \
1045 } \
1046 else \
1047 { \
1048 string = (CHAR_T *) L""; \
1049 len = 0; \
1050 } \
1051 } \
1052 else if (!is_long && spec != L_('S')) \
1053 { \
1054 /* This is complicated. We have to transform the multibyte \
1055 string into a wide character string. */ \
1056 const char *mbs = (const char *) string; \
1057 mbstate_t mbstate; \
1058 \
1059 len = prec != -1 ? __strnlen (mbs, (size_t) prec) : strlen (mbs); \
1060 \
1061 /* Allocate dynamically an array which definitely is long \
1062 enough for the wide character version. Each byte in the \
1063 multi-byte string can produce at most one wide character. */ \
1064 if (__glibc_unlikely (len > SIZE_MAX / sizeof (wchar_t))) \
1065 { \
1066 __set_errno (EOVERFLOW); \
1067 done = -1; \
1068 goto all_done; \
1069 } \
1070 else if (__libc_use_alloca (len * sizeof (wchar_t))) \
1071 string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \
1072 else if ((string = (CHAR_T *) malloc (len * sizeof (wchar_t))) \
1073 == NULL) \
1074 { \
1075 done = -1; \
1076 goto all_done; \
1077 } \
1078 else \
1079 string_malloced = 1; \
1080 \
1081 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1082 len = __mbsrtowcs (string, &mbs, len, &mbstate); \
1083 if (len == (size_t) -1) \
1084 { \
1085 /* Illegal multibyte character. */ \
1086 done = -1; \
1087 goto all_done; \
1088 } \
1089 } \
1090 else \
1091 { \
1092 if (prec != -1) \
1093 /* Search for the end of the string, but don't search past \
1094 the length specified by the precision. */ \
1095 len = __wcsnlen (string, prec); \
1096 else \
1097 len = __wcslen (string); \
1098 } \
1099 \
1100 if ((width -= len) < 0) \
1101 { \
1102 outstring (string, len); \
1103 break; \
1104 } \
1105 \
1106 if (!left) \
1107 PAD (L' '); \
1108 outstring (string, len); \
1109 if (left) \
1110 PAD (L' '); \
1111 if (__glibc_unlikely (string_malloced)) \
1112 free (string); \
1113 } \
1114 break;
1115 #else
1116 # define process_string_arg(fspec) \
1117 LABEL (form_character): \
1118 /* Character. */ \
1119 if (is_long) \
1120 goto LABEL (form_wcharacter); \
1121 --width; /* Account for the character itself. */ \
1122 if (!left) \
1123 PAD (' '); \
1124 if (fspec == NULL) \
1125 outchar ((unsigned char) va_arg (ap, int)); /* Promoted. */ \
1126 else \
1127 outchar ((unsigned char) args_value[fspec->data_arg].pa_int); \
1128 if (left) \
1129 PAD (' '); \
1130 break; \
1131 \
1132 LABEL (form_wcharacter): \
1133 { \
1134 /* Wide character. */ \
1135 char buf[MB_LEN_MAX]; \
1136 mbstate_t mbstate; \
1137 size_t len; \
1138 \
1139 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1140 len = __wcrtomb (buf, (fspec == NULL ? va_arg (ap, wchar_t) \
1141 : args_value[fspec->data_arg].pa_wchar), \
1142 &mbstate); \
1143 if (len == (size_t) -1) \
1144 { \
1145 /* Something went wrong during the conversion. Bail out. */ \
1146 done = -1; \
1147 goto all_done; \
1148 } \
1149 width -= len; \
1150 if (!left) \
1151 PAD (' '); \
1152 outstring (buf, len); \
1153 if (left) \
1154 PAD (' '); \
1155 } \
1156 break; \
1157 \
1158 LABEL (form_string): \
1159 { \
1160 size_t len; \
1161 int string_malloced; \
1162 \
1163 /* The string argument could in fact be `char *' or `wchar_t *'. \
1164 But this should not make a difference here. */ \
1165 if (fspec == NULL) \
1166 string = (char *) va_arg (ap, const char *); \
1167 else \
1168 string = (char *) args_value[fspec->data_arg].pa_string; \
1169 \
1170 /* Entry point for printing other strings. */ \
1171 LABEL (print_string): \
1172 \
1173 string_malloced = 0; \
1174 if (string == NULL) \
1175 { \
1176 /* Write "(null)" if there's space. */ \
1177 if (prec == -1 || prec >= (int) sizeof (null) - 1) \
1178 { \
1179 string = (char *) null; \
1180 len = sizeof (null) - 1; \
1181 } \
1182 else \
1183 { \
1184 string = (char *) ""; \
1185 len = 0; \
1186 } \
1187 } \
1188 else if (!is_long && spec != L_('S')) \
1189 { \
1190 if (prec != -1) \
1191 /* Search for the end of the string, but don't search past \
1192 the length (in bytes) specified by the precision. */ \
1193 len = __strnlen (string, prec); \
1194 else \
1195 len = strlen (string); \
1196 } \
1197 else \
1198 { \
1199 const wchar_t *s2 = (const wchar_t *) string; \
1200 mbstate_t mbstate; \
1201 \
1202 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1203 \
1204 if (prec >= 0) \
1205 { \
1206 /* The string `s2' might not be NUL terminated. */ \
1207 if (__libc_use_alloca (prec)) \
1208 string = (char *) alloca (prec); \
1209 else if ((string = (char *) malloc (prec)) == NULL) \
1210 { \
1211 done = -1; \
1212 goto all_done; \
1213 } \
1214 else \
1215 string_malloced = 1; \
1216 len = __wcsrtombs (string, &s2, prec, &mbstate); \
1217 } \
1218 else \
1219 { \
1220 len = __wcsrtombs (NULL, &s2, 0, &mbstate); \
1221 if (len != (size_t) -1) \
1222 { \
1223 assert (__mbsinit (&mbstate)); \
1224 s2 = (const wchar_t *) string; \
1225 if (__libc_use_alloca (len + 1)) \
1226 string = (char *) alloca (len + 1); \
1227 else if ((string = (char *) malloc (len + 1)) == NULL) \
1228 { \
1229 done = -1; \
1230 goto all_done; \
1231 } \
1232 else \
1233 string_malloced = 1; \
1234 (void) __wcsrtombs (string, &s2, len + 1, &mbstate); \
1235 } \
1236 } \
1237 \
1238 if (len == (size_t) -1) \
1239 { \
1240 /* Illegal wide-character string. */ \
1241 done = -1; \
1242 goto all_done; \
1243 } \
1244 } \
1245 \
1246 if ((width -= len) < 0) \
1247 { \
1248 outstring (string, len); \
1249 break; \
1250 } \
1251 \
1252 if (!left) \
1253 PAD (' '); \
1254 outstring (string, len); \
1255 if (left) \
1256 PAD (' '); \
1257 if (__glibc_unlikely (string_malloced)) \
1258 free (string); \
1259 } \
1260 break;
1261 #endif
1262
1263 /* Helper function to provide temporary buffering for unbuffered streams. */
1264 static int buffered_vfprintf (FILE *stream, const CHAR_T *fmt, va_list,
1265 unsigned int)
1266 __THROW __attribute__ ((noinline));
1267
1268 /* Handle positional format specifiers. */
1269 static int printf_positional (FILE *s,
1270 const CHAR_T *format, int readonly_format,
1271 va_list ap, va_list *ap_savep, int done,
1272 int nspecs_done, const UCHAR_T *lead_str_end,
1273 CHAR_T *work_buffer, int save_errno,
1274 const char *grouping,
1275 THOUSANDS_SEP_T thousands_sep,
1276 unsigned int mode_flags);
1277
1278 /* Handle unknown format specifier. */
1279 static int printf_unknown (FILE *, const struct printf_info *,
1280 const void *const *) __THROW;
1281
1282 /* Group digits of number string. */
1283 static CHAR_T *group_number (CHAR_T *, CHAR_T *, CHAR_T *, const char *,
1284 THOUSANDS_SEP_T);
1285
1286 /* The function itself. */
1287 int
1288 vfprintf (FILE *s, const CHAR_T *format, va_list ap, unsigned int mode_flags)
1289 {
1290 /* The character used as thousands separator. */
1291 THOUSANDS_SEP_T thousands_sep = 0;
1292
1293 /* The string describing the size of groups of digits. */
1294 const char *grouping;
1295
1296 /* Place to accumulate the result. */
1297 int done;
1298
1299 /* Current character in format string. */
1300 const UCHAR_T *f;
1301
1302 /* End of leading constant string. */
1303 const UCHAR_T *lead_str_end;
1304
1305 /* Points to next format specifier. */
1306 const UCHAR_T *end_of_spec;
1307
1308 /* Buffer intermediate results. */
1309 CHAR_T work_buffer[WORK_BUFFER_SIZE];
1310 CHAR_T *workstart = NULL;
1311 CHAR_T *workend;
1312
1313 /* We have to save the original argument pointer. */
1314 va_list ap_save;
1315
1316 /* Count number of specifiers we already processed. */
1317 int nspecs_done;
1318
1319 /* For the %m format we may need the current `errno' value. */
1320 int save_errno = errno;
1321
1322 /* 1 if format is in read-only memory, -1 if it is in writable memory,
1323 0 if unknown. */
1324 int readonly_format = 0;
1325
1326 /* Orient the stream. */
1327 #ifdef ORIENT
1328 ORIENT;
1329 #endif
1330
1331 /* Sanity check of arguments. */
1332 ARGCHECK (s, format);
1333
1334 #ifdef ORIENT
1335 /* Check for correct orientation. */
1336 if (_IO_vtable_offset (s) == 0
1337 && _IO_fwide (s, sizeof (CHAR_T) == 1 ? -1 : 1)
1338 != (sizeof (CHAR_T) == 1 ? -1 : 1))
1339 /* The stream is already oriented otherwise. */
1340 return EOF;
1341 #endif
1342
1343 if (UNBUFFERED_P (s))
1344 /* Use a helper function which will allocate a local temporary buffer
1345 for the stream and then call us again. */
1346 return buffered_vfprintf (s, format, ap, mode_flags);
1347
1348 /* Initialize local variables. */
1349 done = 0;
1350 grouping = (const char *) -1;
1351 #ifdef __va_copy
1352 /* This macro will be available soon in gcc's <stdarg.h>. We need it
1353 since on some systems `va_list' is not an integral type. */
1354 __va_copy (ap_save, ap);
1355 #else
1356 ap_save = ap;
1357 #endif
1358 nspecs_done = 0;
1359
1360 #ifdef COMPILE_WPRINTF
1361 /* Find the first format specifier. */
1362 f = lead_str_end = __find_specwc ((const UCHAR_T *) format);
1363 #else
1364 /* Find the first format specifier. */
1365 f = lead_str_end = __find_specmb ((const UCHAR_T *) format);
1366 #endif
1367
1368 /* Lock stream. */
1369 _IO_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, s);
1370 _IO_flockfile (s);
1371
1372 /* Write the literal text before the first format. */
1373 outstring ((const UCHAR_T *) format,
1374 lead_str_end - (const UCHAR_T *) format);
1375
1376 /* If we only have to print a simple string, return now. */
1377 if (*f == L_('\0'))
1378 goto all_done;
1379
1380 /* Use the slow path in case any printf handler is registered. */
1381 if (__glibc_unlikely (__printf_function_table != NULL
1382 || __printf_modifier_table != NULL
1383 || __printf_va_arg_table != NULL))
1384 goto do_positional;
1385
1386 /* Process whole format string. */
1387 do
1388 {
1389 STEP0_3_TABLE;
1390 STEP4_TABLE;
1391
1392 union printf_arg *args_value; /* This is not used here but ... */
1393 int is_negative; /* Flag for negative number. */
1394 union
1395 {
1396 unsigned long long int longlong;
1397 unsigned long int word;
1398 } number;
1399 int base;
1400 union printf_arg the_arg;
1401 CHAR_T *string; /* Pointer to argument string. */
1402 int alt = 0; /* Alternate format. */
1403 int space = 0; /* Use space prefix if no sign is needed. */
1404 int left = 0; /* Left-justify output. */
1405 int showsign = 0; /* Always begin with plus or minus sign. */
1406 int group = 0; /* Print numbers according grouping rules. */
1407 int is_long_double = 0; /* Argument is long double/ long long int. */
1408 int is_short = 0; /* Argument is short int. */
1409 int is_long = 0; /* Argument is long int. */
1410 int is_char = 0; /* Argument is promoted (unsigned) char. */
1411 int width = 0; /* Width of output; 0 means none specified. */
1412 int prec = -1; /* Precision of output; -1 means none specified. */
1413 /* This flag is set by the 'I' modifier and selects the use of the
1414 `outdigits' as determined by the current locale. */
1415 int use_outdigits = 0;
1416 UCHAR_T pad = L_(' ');/* Padding character. */
1417 CHAR_T spec;
1418
1419 workstart = NULL;
1420 workend = work_buffer + WORK_BUFFER_SIZE;
1421
1422 /* Get current character in format string. */
1423 JUMP (*++f, step0_jumps);
1424
1425 /* ' ' flag. */
1426 LABEL (flag_space):
1427 space = 1;
1428 JUMP (*++f, step0_jumps);
1429
1430 /* '+' flag. */
1431 LABEL (flag_plus):
1432 showsign = 1;
1433 JUMP (*++f, step0_jumps);
1434
1435 /* The '-' flag. */
1436 LABEL (flag_minus):
1437 left = 1;
1438 pad = L_(' ');
1439 JUMP (*++f, step0_jumps);
1440
1441 /* The '#' flag. */
1442 LABEL (flag_hash):
1443 alt = 1;
1444 JUMP (*++f, step0_jumps);
1445
1446 /* The '0' flag. */
1447 LABEL (flag_zero):
1448 if (!left)
1449 pad = L_('0');
1450 JUMP (*++f, step0_jumps);
1451
1452 /* The '\'' flag. */
1453 LABEL (flag_quote):
1454 group = 1;
1455
1456 if (grouping == (const char *) -1)
1457 {
1458 #ifdef COMPILE_WPRINTF
1459 thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
1460 _NL_NUMERIC_THOUSANDS_SEP_WC);
1461 #else
1462 thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1463 #endif
1464
1465 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1466 if (*grouping == '\0' || *grouping == CHAR_MAX
1467 #ifdef COMPILE_WPRINTF
1468 || thousands_sep == L'\0'
1469 #else
1470 || *thousands_sep == '\0'
1471 #endif
1472 )
1473 grouping = NULL;
1474 }
1475 JUMP (*++f, step0_jumps);
1476
1477 LABEL (flag_i18n):
1478 use_outdigits = 1;
1479 JUMP (*++f, step0_jumps);
1480
1481 /* Get width from argument. */
1482 LABEL (width_asterics):
1483 {
1484 const UCHAR_T *tmp; /* Temporary value. */
1485
1486 tmp = ++f;
1487 if (ISDIGIT (*tmp))
1488 {
1489 int pos = read_int (&tmp);
1490
1491 if (pos == -1)
1492 {
1493 __set_errno (EOVERFLOW);
1494 done = -1;
1495 goto all_done;
1496 }
1497
1498 if (pos && *tmp == L_('$'))
1499 /* The width comes from a positional parameter. */
1500 goto do_positional;
1501 }
1502 width = va_arg (ap, int);
1503
1504 /* Negative width means left justified. */
1505 if (width < 0)
1506 {
1507 width = -width;
1508 pad = L_(' ');
1509 left = 1;
1510 }
1511
1512 if (__glibc_unlikely (width >= INT_MAX / sizeof (CHAR_T) - EXTSIZ))
1513 {
1514 __set_errno (EOVERFLOW);
1515 done = -1;
1516 goto all_done;
1517 }
1518
1519 if (width >= WORK_BUFFER_SIZE - EXTSIZ)
1520 {
1521 /* We have to use a special buffer. */
1522 size_t needed = ((size_t) width + EXTSIZ) * sizeof (CHAR_T);
1523 if (__libc_use_alloca (needed))
1524 workend = (CHAR_T *) alloca (needed) + width + EXTSIZ;
1525 else
1526 {
1527 workstart = (CHAR_T *) malloc (needed);
1528 if (workstart == NULL)
1529 {
1530 done = -1;
1531 goto all_done;
1532 }
1533 workend = workstart + width + EXTSIZ;
1534 }
1535 }
1536 }
1537 JUMP (*f, step1_jumps);
1538
1539 /* Given width in format string. */
1540 LABEL (width):
1541 width = read_int (&f);
1542
1543 if (__glibc_unlikely (width == -1
1544 || width >= INT_MAX / sizeof (CHAR_T) - EXTSIZ))
1545 {
1546 __set_errno (EOVERFLOW);
1547 done = -1;
1548 goto all_done;
1549 }
1550
1551 if (width >= WORK_BUFFER_SIZE - EXTSIZ)
1552 {
1553 /* We have to use a special buffer. */
1554 size_t needed = ((size_t) width + EXTSIZ) * sizeof (CHAR_T);
1555 if (__libc_use_alloca (needed))
1556 workend = (CHAR_T *) alloca (needed) + width + EXTSIZ;
1557 else
1558 {
1559 workstart = (CHAR_T *) malloc (needed);
1560 if (workstart == NULL)
1561 {
1562 done = -1;
1563 goto all_done;
1564 }
1565 workend = workstart + width + EXTSIZ;
1566 }
1567 }
1568 if (*f == L_('$'))
1569 /* Oh, oh. The argument comes from a positional parameter. */
1570 goto do_positional;
1571 JUMP (*f, step1_jumps);
1572
1573 LABEL (precision):
1574 ++f;
1575 if (*f == L_('*'))
1576 {
1577 const UCHAR_T *tmp; /* Temporary value. */
1578
1579 tmp = ++f;
1580 if (ISDIGIT (*tmp))
1581 {
1582 int pos = read_int (&tmp);
1583
1584 if (pos == -1)
1585 {
1586 __set_errno (EOVERFLOW);
1587 done = -1;
1588 goto all_done;
1589 }
1590
1591 if (pos && *tmp == L_('$'))
1592 /* The precision comes from a positional parameter. */
1593 goto do_positional;
1594 }
1595 prec = va_arg (ap, int);
1596
1597 /* If the precision is negative the precision is omitted. */
1598 if (prec < 0)
1599 prec = -1;
1600 }
1601 else if (ISDIGIT (*f))
1602 {
1603 prec = read_int (&f);
1604
1605 /* The precision was specified in this case as an extremely
1606 large positive value. */
1607 if (prec == -1)
1608 {
1609 __set_errno (EOVERFLOW);
1610 done = -1;
1611 goto all_done;
1612 }
1613 }
1614 else
1615 prec = 0;
1616 if (prec > width && prec > WORK_BUFFER_SIZE - EXTSIZ)
1617 {
1618 /* Deallocate any previously allocated buffer because it is
1619 too small. */
1620 if (__glibc_unlikely (workstart != NULL))
1621 free (workstart);
1622 workstart = NULL;
1623 if (__glibc_unlikely (prec >= INT_MAX / sizeof (CHAR_T) - EXTSIZ))
1624 {
1625 __set_errno (EOVERFLOW);
1626 done = -1;
1627 goto all_done;
1628 }
1629 size_t needed = ((size_t) prec + EXTSIZ) * sizeof (CHAR_T);
1630
1631 if (__libc_use_alloca (needed))
1632 workend = (CHAR_T *) alloca (needed) + prec + EXTSIZ;
1633 else
1634 {
1635 workstart = (CHAR_T *) malloc (needed);
1636 if (workstart == NULL)
1637 {
1638 done = -1;
1639 goto all_done;
1640 }
1641 workend = workstart + prec + EXTSIZ;
1642 }
1643 }
1644 JUMP (*f, step2_jumps);
1645
1646 /* Process 'h' modifier. There might another 'h' following. */
1647 LABEL (mod_half):
1648 is_short = 1;
1649 JUMP (*++f, step3a_jumps);
1650
1651 /* Process 'hh' modifier. */
1652 LABEL (mod_halfhalf):
1653 is_short = 0;
1654 is_char = 1;
1655 JUMP (*++f, step4_jumps);
1656
1657 /* Process 'l' modifier. There might another 'l' following. */
1658 LABEL (mod_long):
1659 is_long = 1;
1660 JUMP (*++f, step3b_jumps);
1661
1662 /* Process 'L', 'q', or 'll' modifier. No other modifier is
1663 allowed to follow. */
1664 LABEL (mod_longlong):
1665 is_long_double = 1;
1666 is_long = 1;
1667 JUMP (*++f, step4_jumps);
1668
1669 LABEL (mod_size_t):
1670 is_long_double = sizeof (size_t) > sizeof (unsigned long int);
1671 is_long = sizeof (size_t) > sizeof (unsigned int);
1672 JUMP (*++f, step4_jumps);
1673
1674 LABEL (mod_ptrdiff_t):
1675 is_long_double = sizeof (ptrdiff_t) > sizeof (unsigned long int);
1676 is_long = sizeof (ptrdiff_t) > sizeof (unsigned int);
1677 JUMP (*++f, step4_jumps);
1678
1679 LABEL (mod_intmax_t):
1680 is_long_double = sizeof (intmax_t) > sizeof (unsigned long int);
1681 is_long = sizeof (intmax_t) > sizeof (unsigned int);
1682 JUMP (*++f, step4_jumps);
1683
1684 /* Process current format. */
1685 while (1)
1686 {
1687 process_arg (((struct printf_spec *) NULL));
1688 process_string_arg (((struct printf_spec *) NULL));
1689
1690 LABEL (form_unknown):
1691 if (spec == L_('\0'))
1692 {
1693 /* The format string ended before the specifier is complete. */
1694 __set_errno (EINVAL);
1695 done = -1;
1696 goto all_done;
1697 }
1698
1699 /* If we are in the fast loop force entering the complicated
1700 one. */
1701 goto do_positional;
1702 }
1703
1704 /* The format is correctly handled. */
1705 ++nspecs_done;
1706
1707 if (__glibc_unlikely (workstart != NULL))
1708 free (workstart);
1709 workstart = NULL;
1710
1711 /* Look for next format specifier. */
1712 #ifdef COMPILE_WPRINTF
1713 f = __find_specwc ((end_of_spec = ++f));
1714 #else
1715 f = __find_specmb ((end_of_spec = ++f));
1716 #endif
1717
1718 /* Write the following constant string. */
1719 outstring (end_of_spec, f - end_of_spec);
1720 }
1721 while (*f != L_('\0'));
1722
1723 /* Unlock stream and return. */
1724 goto all_done;
1725
1726 /* Hand off processing for positional parameters. */
1727 do_positional:
1728 if (__glibc_unlikely (workstart != NULL))
1729 {
1730 free (workstart);
1731 workstart = NULL;
1732 }
1733 done = printf_positional (s, format, readonly_format, ap, &ap_save,
1734 done, nspecs_done, lead_str_end, work_buffer,
1735 save_errno, grouping, thousands_sep, mode_flags);
1736
1737 all_done:
1738 if (__glibc_unlikely (workstart != NULL))
1739 free (workstart);
1740 /* Unlock the stream. */
1741 _IO_funlockfile (s);
1742 _IO_cleanup_region_end (0);
1743
1744 return done;
1745 }
1746 \f
1747 static int
1748 printf_positional (FILE *s, const CHAR_T *format, int readonly_format,
1749 va_list ap, va_list *ap_savep, int done, int nspecs_done,
1750 const UCHAR_T *lead_str_end,
1751 CHAR_T *work_buffer, int save_errno,
1752 const char *grouping, THOUSANDS_SEP_T thousands_sep,
1753 unsigned int mode_flags)
1754 {
1755 /* For positional argument handling. */
1756 struct scratch_buffer specsbuf;
1757 scratch_buffer_init (&specsbuf);
1758 struct printf_spec *specs = specsbuf.data;
1759 size_t specs_limit = specsbuf.length / sizeof (specs[0]);
1760
1761 /* Used as a backing store for args_value, args_size, args_type
1762 below. */
1763 struct scratch_buffer argsbuf;
1764 scratch_buffer_init (&argsbuf);
1765
1766 /* Array with information about the needed arguments. This has to
1767 be dynamically extensible. */
1768 size_t nspecs = 0;
1769
1770 /* The number of arguments the format string requests. This will
1771 determine the size of the array needed to store the argument
1772 attributes. */
1773 size_t nargs = 0;
1774
1775 /* Positional parameters refer to arguments directly. This could
1776 also determine the maximum number of arguments. Track the
1777 maximum number. */
1778 size_t max_ref_arg = 0;
1779
1780 /* Just a counter. */
1781 size_t cnt;
1782
1783 CHAR_T *workstart = NULL;
1784
1785 if (grouping == (const char *) -1)
1786 {
1787 #ifdef COMPILE_WPRINTF
1788 thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
1789 _NL_NUMERIC_THOUSANDS_SEP_WC);
1790 #else
1791 thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1792 #endif
1793
1794 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1795 if (*grouping == '\0' || *grouping == CHAR_MAX)
1796 grouping = NULL;
1797 }
1798
1799 for (const UCHAR_T *f = lead_str_end; *f != L_('\0');
1800 f = specs[nspecs++].next_fmt)
1801 {
1802 if (nspecs == specs_limit)
1803 {
1804 if (!scratch_buffer_grow_preserve (&specsbuf))
1805 {
1806 done = -1;
1807 goto all_done;
1808 }
1809 specs = specsbuf.data;
1810 specs_limit = specsbuf.length / sizeof (specs[0]);
1811 }
1812
1813 /* Parse the format specifier. */
1814 #ifdef COMPILE_WPRINTF
1815 nargs += __parse_one_specwc (f, nargs, &specs[nspecs], &max_ref_arg);
1816 #else
1817 nargs += __parse_one_specmb (f, nargs, &specs[nspecs], &max_ref_arg);
1818 #endif
1819 }
1820
1821 /* Determine the number of arguments the format string consumes. */
1822 nargs = MAX (nargs, max_ref_arg);
1823
1824 union printf_arg *args_value;
1825 int *args_size;
1826 int *args_type;
1827 {
1828 /* Calculate total size needed to represent a single argument
1829 across all three argument-related arrays. */
1830 size_t bytes_per_arg
1831 = sizeof (*args_value) + sizeof (*args_size) + sizeof (*args_type);
1832 if (!scratch_buffer_set_array_size (&argsbuf, nargs, bytes_per_arg))
1833 {
1834 done = -1;
1835 goto all_done;
1836 }
1837 args_value = argsbuf.data;
1838 /* Set up the remaining two arrays to each point past the end of
1839 the prior array, since space for all three has been allocated
1840 now. */
1841 args_size = &args_value[nargs].pa_int;
1842 args_type = &args_size[nargs];
1843 memset (args_type, (mode_flags & PRINTF_FORTIFY) != 0 ? '\xff' : '\0',
1844 nargs * sizeof (*args_type));
1845 }
1846
1847 /* XXX Could do sanity check here: If any element in ARGS_TYPE is
1848 still zero after this loop, format is invalid. For now we
1849 simply use 0 as the value. */
1850
1851 /* Fill in the types of all the arguments. */
1852 for (cnt = 0; cnt < nspecs; ++cnt)
1853 {
1854 /* If the width is determined by an argument this is an int. */
1855 if (specs[cnt].width_arg != -1)
1856 args_type[specs[cnt].width_arg] = PA_INT;
1857
1858 /* If the precision is determined by an argument this is an int. */
1859 if (specs[cnt].prec_arg != -1)
1860 args_type[specs[cnt].prec_arg] = PA_INT;
1861
1862 switch (specs[cnt].ndata_args)
1863 {
1864 case 0: /* No arguments. */
1865 break;
1866 case 1: /* One argument; we already have the
1867 type and size. */
1868 args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
1869 args_size[specs[cnt].data_arg] = specs[cnt].size;
1870 break;
1871 default:
1872 /* We have more than one argument for this format spec.
1873 We must call the arginfo function again to determine
1874 all the types. */
1875 (void) (*__printf_arginfo_table[specs[cnt].info.spec])
1876 (&specs[cnt].info,
1877 specs[cnt].ndata_args, &args_type[specs[cnt].data_arg],
1878 &args_size[specs[cnt].data_arg]);
1879 break;
1880 }
1881 }
1882
1883 /* Now we know all the types and the order. Fill in the argument
1884 values. */
1885 for (cnt = 0; cnt < nargs; ++cnt)
1886 switch (args_type[cnt])
1887 {
1888 #define T(tag, mem, type) \
1889 case tag: \
1890 args_value[cnt].mem = va_arg (*ap_savep, type); \
1891 break
1892
1893 T (PA_WCHAR, pa_wchar, wint_t);
1894 case PA_CHAR: /* Promoted. */
1895 case PA_INT|PA_FLAG_SHORT: /* Promoted. */
1896 #if LONG_MAX == INT_MAX
1897 case PA_INT|PA_FLAG_LONG:
1898 #endif
1899 T (PA_INT, pa_int, int);
1900 #if LONG_MAX == LONG_LONG_MAX
1901 case PA_INT|PA_FLAG_LONG:
1902 #endif
1903 T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
1904 #if LONG_MAX != INT_MAX && LONG_MAX != LONG_LONG_MAX
1905 # error "he?"
1906 #endif
1907 case PA_FLOAT: /* Promoted. */
1908 T (PA_DOUBLE, pa_double, double);
1909 case PA_DOUBLE|PA_FLAG_LONG_DOUBLE:
1910 if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0))
1911 {
1912 args_value[cnt].pa_double = va_arg (*ap_savep, double);
1913 args_type[cnt] &= ~PA_FLAG_LONG_DOUBLE;
1914 }
1915 #if __HAVE_FLOAT128_UNLIKE_LDBL
1916 else if ((mode_flags & PRINTF_LDBL_USES_FLOAT128) != 0)
1917 args_value[cnt].pa_float128 = va_arg (*ap_savep, _Float128);
1918 #endif
1919 else
1920 args_value[cnt].pa_long_double = va_arg (*ap_savep, long double);
1921 break;
1922 case PA_STRING: /* All pointers are the same */
1923 case PA_WSTRING: /* All pointers are the same */
1924 T (PA_POINTER, pa_pointer, void *);
1925 #undef T
1926 default:
1927 if ((args_type[cnt] & PA_FLAG_PTR) != 0)
1928 args_value[cnt].pa_pointer = va_arg (*ap_savep, void *);
1929 else if (__glibc_unlikely (__printf_va_arg_table != NULL)
1930 && __printf_va_arg_table[args_type[cnt] - PA_LAST] != NULL)
1931 {
1932 args_value[cnt].pa_user = alloca (args_size[cnt]);
1933 (*__printf_va_arg_table[args_type[cnt] - PA_LAST])
1934 (args_value[cnt].pa_user, ap_savep);
1935 }
1936 else
1937 memset (&args_value[cnt], 0, sizeof (args_value[cnt]));
1938 break;
1939 case -1:
1940 /* Error case. Not all parameters appear in N$ format
1941 strings. We have no way to determine their type. */
1942 assert ((mode_flags & PRINTF_FORTIFY) != 0);
1943 __libc_fatal ("*** invalid %N$ use detected ***\n");
1944 }
1945
1946 /* Now walk through all format specifiers and process them. */
1947 for (; (size_t) nspecs_done < nspecs; ++nspecs_done)
1948 {
1949 STEP4_TABLE;
1950
1951 int is_negative;
1952 union
1953 {
1954 unsigned long long int longlong;
1955 unsigned long int word;
1956 } number;
1957 int base;
1958 union printf_arg the_arg;
1959 CHAR_T *string; /* Pointer to argument string. */
1960
1961 /* Fill variables from values in struct. */
1962 int alt = specs[nspecs_done].info.alt;
1963 int space = specs[nspecs_done].info.space;
1964 int left = specs[nspecs_done].info.left;
1965 int showsign = specs[nspecs_done].info.showsign;
1966 int group = specs[nspecs_done].info.group;
1967 int is_long_double = specs[nspecs_done].info.is_long_double;
1968 int is_short = specs[nspecs_done].info.is_short;
1969 int is_char = specs[nspecs_done].info.is_char;
1970 int is_long = specs[nspecs_done].info.is_long;
1971 int width = specs[nspecs_done].info.width;
1972 int prec = specs[nspecs_done].info.prec;
1973 int use_outdigits = specs[nspecs_done].info.i18n;
1974 char pad = specs[nspecs_done].info.pad;
1975 CHAR_T spec = specs[nspecs_done].info.spec;
1976
1977 workstart = NULL;
1978 CHAR_T *workend = work_buffer + WORK_BUFFER_SIZE;
1979
1980 /* Fill in last information. */
1981 if (specs[nspecs_done].width_arg != -1)
1982 {
1983 /* Extract the field width from an argument. */
1984 specs[nspecs_done].info.width =
1985 args_value[specs[nspecs_done].width_arg].pa_int;
1986
1987 if (specs[nspecs_done].info.width < 0)
1988 /* If the width value is negative left justification is
1989 selected and the value is taken as being positive. */
1990 {
1991 specs[nspecs_done].info.width *= -1;
1992 left = specs[nspecs_done].info.left = 1;
1993 }
1994 width = specs[nspecs_done].info.width;
1995 }
1996
1997 if (specs[nspecs_done].prec_arg != -1)
1998 {
1999 /* Extract the precision from an argument. */
2000 specs[nspecs_done].info.prec =
2001 args_value[specs[nspecs_done].prec_arg].pa_int;
2002
2003 if (specs[nspecs_done].info.prec < 0)
2004 /* If the precision is negative the precision is
2005 omitted. */
2006 specs[nspecs_done].info.prec = -1;
2007
2008 prec = specs[nspecs_done].info.prec;
2009 }
2010
2011 /* Maybe the buffer is too small. */
2012 if (MAX (prec, width) + EXTSIZ > WORK_BUFFER_SIZE)
2013 {
2014 if (__libc_use_alloca ((MAX (prec, width) + EXTSIZ)
2015 * sizeof (CHAR_T)))
2016 workend = ((CHAR_T *) alloca ((MAX (prec, width) + EXTSIZ)
2017 * sizeof (CHAR_T))
2018 + (MAX (prec, width) + EXTSIZ));
2019 else
2020 {
2021 workstart = (CHAR_T *) malloc ((MAX (prec, width) + EXTSIZ)
2022 * sizeof (CHAR_T));
2023 if (workstart == NULL)
2024 {
2025 done = -1;
2026 goto all_done;
2027 }
2028 workend = workstart + (MAX (prec, width) + EXTSIZ);
2029 }
2030 }
2031
2032 /* Process format specifiers. */
2033 while (1)
2034 {
2035 extern printf_function **__printf_function_table;
2036 int function_done;
2037
2038 if (spec <= UCHAR_MAX
2039 && __printf_function_table != NULL
2040 && __printf_function_table[(size_t) spec] != NULL)
2041 {
2042 const void **ptr = alloca (specs[nspecs_done].ndata_args
2043 * sizeof (const void *));
2044
2045 /* Fill in an array of pointers to the argument values. */
2046 for (unsigned int i = 0; i < specs[nspecs_done].ndata_args;
2047 ++i)
2048 ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
2049
2050 /* Call the function. */
2051 function_done = __printf_function_table[(size_t) spec]
2052 (s, &specs[nspecs_done].info, ptr);
2053
2054 if (function_done != -2)
2055 {
2056 /* If an error occurred we don't have information
2057 about # of chars. */
2058 if (function_done < 0)
2059 {
2060 /* Function has set errno. */
2061 done = -1;
2062 goto all_done;
2063 }
2064
2065 done_add (function_done);
2066 break;
2067 }
2068 }
2069
2070 JUMP (spec, step4_jumps);
2071
2072 process_arg ((&specs[nspecs_done]));
2073 process_string_arg ((&specs[nspecs_done]));
2074
2075 LABEL (form_unknown):
2076 {
2077 unsigned int i;
2078 const void **ptr;
2079
2080 ptr = alloca (specs[nspecs_done].ndata_args
2081 * sizeof (const void *));
2082
2083 /* Fill in an array of pointers to the argument values. */
2084 for (i = 0; i < specs[nspecs_done].ndata_args; ++i)
2085 ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
2086
2087 /* Call the function. */
2088 function_done = printf_unknown (s, &specs[nspecs_done].info,
2089 ptr);
2090
2091 /* If an error occurred we don't have information about #
2092 of chars. */
2093 if (function_done < 0)
2094 {
2095 /* Function has set errno. */
2096 done = -1;
2097 goto all_done;
2098 }
2099
2100 done_add (function_done);
2101 }
2102 break;
2103 }
2104
2105 if (__glibc_unlikely (workstart != NULL))
2106 free (workstart);
2107 workstart = NULL;
2108
2109 /* Write the following constant string. */
2110 outstring (specs[nspecs_done].end_of_fmt,
2111 specs[nspecs_done].next_fmt
2112 - specs[nspecs_done].end_of_fmt);
2113 }
2114 all_done:
2115 if (__glibc_unlikely (workstart != NULL))
2116 free (workstart);
2117 scratch_buffer_free (&argsbuf);
2118 scratch_buffer_free (&specsbuf);
2119 return done;
2120 }
2121 \f
2122 /* Handle an unknown format specifier. This prints out a canonicalized
2123 representation of the format spec itself. */
2124 static int
2125 printf_unknown (FILE *s, const struct printf_info *info,
2126 const void *const *args)
2127
2128 {
2129 int done = 0;
2130 CHAR_T work_buffer[MAX (sizeof (info->width), sizeof (info->prec)) * 3];
2131 CHAR_T *const workend
2132 = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
2133 CHAR_T *w;
2134
2135 outchar (L_('%'));
2136
2137 if (info->alt)
2138 outchar (L_('#'));
2139 if (info->group)
2140 outchar (L_('\''));
2141 if (info->showsign)
2142 outchar (L_('+'));
2143 else if (info->space)
2144 outchar (L_(' '));
2145 if (info->left)
2146 outchar (L_('-'));
2147 if (info->pad == L_('0'))
2148 outchar (L_('0'));
2149 if (info->i18n)
2150 outchar (L_('I'));
2151
2152 if (info->width != 0)
2153 {
2154 w = _itoa_word (info->width, workend, 10, 0);
2155 while (w < workend)
2156 outchar (*w++);
2157 }
2158
2159 if (info->prec != -1)
2160 {
2161 outchar (L_('.'));
2162 w = _itoa_word (info->prec, workend, 10, 0);
2163 while (w < workend)
2164 outchar (*w++);
2165 }
2166
2167 if (info->spec != L_('\0'))
2168 outchar (info->spec);
2169
2170 all_done:
2171 return done;
2172 }
2173 \f
2174 /* Group the digits from W to REAR_PTR according to the grouping rules
2175 of the current locale. The interpretation of GROUPING is as in
2176 `struct lconv' from <locale.h>. The grouped number extends from
2177 the returned pointer until REAR_PTR. FRONT_PTR to W is used as a
2178 scratch area. */
2179 static CHAR_T *
2180 group_number (CHAR_T *front_ptr, CHAR_T *w, CHAR_T *rear_ptr,
2181 const char *grouping, THOUSANDS_SEP_T thousands_sep)
2182 {
2183 /* Length of the current group. */
2184 int len;
2185 #ifndef COMPILE_WPRINTF
2186 /* Length of the separator (in wide mode, the separator is always a
2187 single wide character). */
2188 int tlen = strlen (thousands_sep);
2189 #endif
2190
2191 /* We treat all negative values like CHAR_MAX. */
2192
2193 if (*grouping == CHAR_MAX || *grouping <= 0)
2194 /* No grouping should be done. */
2195 return w;
2196
2197 len = *grouping++;
2198
2199 /* Copy existing string so that nothing gets overwritten. */
2200 memmove (front_ptr, w, (rear_ptr - w) * sizeof (CHAR_T));
2201 CHAR_T *s = front_ptr + (rear_ptr - w);
2202
2203 w = rear_ptr;
2204
2205 /* Process all characters in the string. */
2206 while (s > front_ptr)
2207 {
2208 *--w = *--s;
2209
2210 if (--len == 0 && s > front_ptr)
2211 {
2212 /* A new group begins. */
2213 #ifdef COMPILE_WPRINTF
2214 if (w != s)
2215 *--w = thousands_sep;
2216 else
2217 /* Not enough room for the separator. */
2218 goto copy_rest;
2219 #else
2220 int cnt = tlen;
2221 if (tlen < w - s)
2222 do
2223 *--w = thousands_sep[--cnt];
2224 while (cnt > 0);
2225 else
2226 /* Not enough room for the separator. */
2227 goto copy_rest;
2228 #endif
2229
2230 if (*grouping == CHAR_MAX
2231 #if CHAR_MIN < 0
2232 || *grouping < 0
2233 #endif
2234 )
2235 {
2236 copy_rest:
2237 /* No further grouping to be done. Copy the rest of the
2238 number. */
2239 memmove (w, s, (front_ptr -s) * sizeof (CHAR_T));
2240 break;
2241 }
2242 else if (*grouping != '\0')
2243 len = *grouping++;
2244 else
2245 /* The previous grouping repeats ad infinitum. */
2246 len = grouping[-1];
2247 }
2248 }
2249 return w;
2250 }
2251 \f
2252 /* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
2253 struct helper_file
2254 {
2255 struct _IO_FILE_plus _f;
2256 #ifdef COMPILE_WPRINTF
2257 struct _IO_wide_data _wide_data;
2258 #endif
2259 FILE *_put_stream;
2260 #ifdef _IO_MTSAFE_IO
2261 _IO_lock_t lock;
2262 #endif
2263 };
2264
2265 static int
2266 _IO_helper_overflow (FILE *s, int c)
2267 {
2268 FILE *target = ((struct helper_file*) s)->_put_stream;
2269 #ifdef COMPILE_WPRINTF
2270 int used = s->_wide_data->_IO_write_ptr - s->_wide_data->_IO_write_base;
2271 if (used)
2272 {
2273 size_t written = _IO_sputn (target, s->_wide_data->_IO_write_base, used);
2274 if (written == 0 || written == WEOF)
2275 return WEOF;
2276 __wmemmove (s->_wide_data->_IO_write_base,
2277 s->_wide_data->_IO_write_base + written,
2278 used - written);
2279 s->_wide_data->_IO_write_ptr -= written;
2280 }
2281 #else
2282 int used = s->_IO_write_ptr - s->_IO_write_base;
2283 if (used)
2284 {
2285 size_t written = _IO_sputn (target, s->_IO_write_base, used);
2286 if (written == 0 || written == EOF)
2287 return EOF;
2288 memmove (s->_IO_write_base, s->_IO_write_base + written,
2289 used - written);
2290 s->_IO_write_ptr -= written;
2291 }
2292 #endif
2293 return PUTC (c, s);
2294 }
2295
2296 #ifdef COMPILE_WPRINTF
2297 static const struct _IO_jump_t _IO_helper_jumps libio_vtable =
2298 {
2299 JUMP_INIT_DUMMY,
2300 JUMP_INIT (finish, _IO_wdefault_finish),
2301 JUMP_INIT (overflow, _IO_helper_overflow),
2302 JUMP_INIT (underflow, _IO_default_underflow),
2303 JUMP_INIT (uflow, _IO_default_uflow),
2304 JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail),
2305 JUMP_INIT (xsputn, _IO_wdefault_xsputn),
2306 JUMP_INIT (xsgetn, _IO_wdefault_xsgetn),
2307 JUMP_INIT (seekoff, _IO_default_seekoff),
2308 JUMP_INIT (seekpos, _IO_default_seekpos),
2309 JUMP_INIT (setbuf, _IO_default_setbuf),
2310 JUMP_INIT (sync, _IO_default_sync),
2311 JUMP_INIT (doallocate, _IO_wdefault_doallocate),
2312 JUMP_INIT (read, _IO_default_read),
2313 JUMP_INIT (write, _IO_default_write),
2314 JUMP_INIT (seek, _IO_default_seek),
2315 JUMP_INIT (close, _IO_default_close),
2316 JUMP_INIT (stat, _IO_default_stat)
2317 };
2318 #else
2319 static const struct _IO_jump_t _IO_helper_jumps libio_vtable =
2320 {
2321 JUMP_INIT_DUMMY,
2322 JUMP_INIT (finish, _IO_default_finish),
2323 JUMP_INIT (overflow, _IO_helper_overflow),
2324 JUMP_INIT (underflow, _IO_default_underflow),
2325 JUMP_INIT (uflow, _IO_default_uflow),
2326 JUMP_INIT (pbackfail, _IO_default_pbackfail),
2327 JUMP_INIT (xsputn, _IO_default_xsputn),
2328 JUMP_INIT (xsgetn, _IO_default_xsgetn),
2329 JUMP_INIT (seekoff, _IO_default_seekoff),
2330 JUMP_INIT (seekpos, _IO_default_seekpos),
2331 JUMP_INIT (setbuf, _IO_default_setbuf),
2332 JUMP_INIT (sync, _IO_default_sync),
2333 JUMP_INIT (doallocate, _IO_default_doallocate),
2334 JUMP_INIT (read, _IO_default_read),
2335 JUMP_INIT (write, _IO_default_write),
2336 JUMP_INIT (seek, _IO_default_seek),
2337 JUMP_INIT (close, _IO_default_close),
2338 JUMP_INIT (stat, _IO_default_stat)
2339 };
2340 #endif
2341
2342 static int
2343 buffered_vfprintf (FILE *s, const CHAR_T *format, va_list args,
2344 unsigned int mode_flags)
2345 {
2346 CHAR_T buf[BUFSIZ];
2347 struct helper_file helper;
2348 FILE *hp = (FILE *) &helper._f;
2349 int result, to_flush;
2350
2351 /* Orient the stream. */
2352 #ifdef ORIENT
2353 ORIENT;
2354 #endif
2355
2356 /* Initialize helper. */
2357 helper._put_stream = s;
2358 #ifdef COMPILE_WPRINTF
2359 hp->_wide_data = &helper._wide_data;
2360 _IO_wsetp (hp, buf, buf + sizeof buf / sizeof (CHAR_T));
2361 hp->_mode = 1;
2362 #else
2363 _IO_setp (hp, buf, buf + sizeof buf);
2364 hp->_mode = -1;
2365 #endif
2366 hp->_flags = _IO_MAGIC|_IO_NO_READS|_IO_USER_LOCK;
2367 #if _IO_JUMPS_OFFSET
2368 hp->_vtable_offset = 0;
2369 #endif
2370 #ifdef _IO_MTSAFE_IO
2371 hp->_lock = NULL;
2372 #endif
2373 hp->_flags2 = s->_flags2;
2374 _IO_JUMPS (&helper._f) = (struct _IO_jump_t *) &_IO_helper_jumps;
2375
2376 /* Now print to helper instead. */
2377 result = vfprintf (hp, format, args, mode_flags);
2378
2379 /* Lock stream. */
2380 __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile, s);
2381 _IO_flockfile (s);
2382
2383 /* Now flush anything from the helper to the S. */
2384 #ifdef COMPILE_WPRINTF
2385 if ((to_flush = (hp->_wide_data->_IO_write_ptr
2386 - hp->_wide_data->_IO_write_base)) > 0)
2387 {
2388 if ((int) _IO_sputn (s, hp->_wide_data->_IO_write_base, to_flush)
2389 != to_flush)
2390 result = -1;
2391 }
2392 #else
2393 if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
2394 {
2395 if ((int) _IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
2396 result = -1;
2397 }
2398 #endif
2399
2400 /* Unlock the stream. */
2401 _IO_funlockfile (s);
2402 __libc_cleanup_region_end (0);
2403
2404 return result;
2405 }
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