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Updated to fedora-glibc-20070317T2130
[glibc.git] / stdio-common / vfprintf.c
blob946551f2d60f317333757d2d7671569704cf0803
1 /* Copyright (C) 1991-2002, 2003, 2004, 2005, 2006, 2007
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
19
20 #include <ctype.h>
21 #include <limits.h>
22 #include <printf.h>
23 #include <stdarg.h>
24 #include <stdint.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <errno.h>
28 #include <wchar.h>
29 #include <bits/libc-lock.h>
30 #include <sys/param.h>
31 #include "_itoa.h"
32 #include <locale/localeinfo.h>
33 #include <stdio.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
43 #include <libioP.h>
44 #define FILE _IO_FILE
45 #undef va_list
46 #define va_list _IO_va_list
47 #undef BUFSIZ
48 #define BUFSIZ _IO_BUFSIZ
49 #define ARGCHECK(S, Format) \
50 do \
51 { \
52 /* Check file argument for consistence. */ \
53 CHECK_FILE (S, -1); \
54 if (S->_flags & _IO_NO_WRITES) \
55 { \
56 __set_errno (EBADF); \
57 return -1; \
58 } \
59 if (Format == NULL) \
60 { \
61 MAYBE_SET_EINVAL; \
62 return -1; \
63 } \
64 } while (0)
65 #define UNBUFFERED_P(S) ((S)->_IO_file_flags & _IO_UNBUFFERED)
66
67 #ifndef COMPILE_WPRINTF
68 # define vfprintf _IO_vfprintf_internal
69 # define CHAR_T char
70 # define UCHAR_T unsigned char
71 # define INT_T int
72 # define L_(Str) Str
73 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - '0') < 10)
74 # define STR_LEN(Str) strlen (Str)
75
76 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
77 # define PAD(Padchar) \
78 if (width > 0) \
79 done += INTUSE(_IO_padn) (s, (Padchar), width)
80 # define PUTC(C, F) _IO_putc_unlocked (C, F)
81 # define ORIENT if (_IO_vtable_offset (s) == 0 && _IO_fwide (s, -1) != -1)\
82 return -1
83 #else
84 # define vfprintf _IO_vfwprintf
85 # define CHAR_T wchar_t
86 /* This is a hack!!! There should be a type uwchar_t. */
87 # define UCHAR_T unsigned int /* uwchar_t */
88 # define INT_T wint_t
89 # define L_(Str) L##Str
90 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - L'0') < 10)
91 # define STR_LEN(Str) __wcslen (Str)
92
93 # include "_itowa.h"
94
95 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
96 # define PAD(Padchar) \
97 if (width > 0) \
98 done += _IO_wpadn (s, (Padchar), width)
99 # define PUTC(C, F) _IO_putwc_unlocked (C, F)
100 # define ORIENT if (_IO_fwide (s, 1) != 1) return -1
101
102 # undef _itoa
103 # define _itoa(Val, Buf, Base, Case) _itowa (Val, Buf, Base, Case)
104 # define _itoa_word(Val, Buf, Base, Case) _itowa_word (Val, Buf, Base, Case)
105 # undef EOF
106 # define EOF WEOF
107 #endif
108
109 #include "_i18n_number.h"
110
111 /* Include the shared code for parsing the format string. */
112 #include "printf-parse.h"
113
114
115 #define outchar(Ch) \
116 do \
117 { \
118 register const INT_T outc = (Ch); \
119 if (PUTC (outc, s) == EOF) \
120 { \
121 done = -1; \
122 goto all_done; \
123 } \
124 else \
125 ++done; \
126 } \
127 while (0)
128
129 #define outstring(String, Len) \
130 do \
131 { \
132 if ((size_t) PUT (s, (String), (Len)) != (size_t) (Len)) \
133 { \
134 done = -1; \
135 goto all_done; \
136 } \
137 done += (Len); \
138 } \
139 while (0)
140
141 /* For handling long_double and longlong we use the same flag. If
142 `long' and `long long' are effectively the same type define it to
143 zero. */
144 #if LONG_MAX == LONG_LONG_MAX
145 # define is_longlong 0
146 #else
147 # define is_longlong is_long_double
148 #endif
149
150 /* If `long' and `int' is effectively the same type we don't have to
151 handle `long separately. */
152 #if INT_MAX == LONG_MAX
153 # define is_long_num 0
154 #else
155 # define is_long_num is_long
156 #endif
157
158
159 /* Global variables. */
160 static const CHAR_T null[] = L_("(null)");
161
162
163 /* Helper function to provide temporary buffering for unbuffered streams. */
164 static int buffered_vfprintf (FILE *stream, const CHAR_T *fmt, va_list)
165 __THROW __attribute__ ((noinline)) internal_function;
166
167 /* Handle unknown format specifier. */
168 static int printf_unknown (FILE *, const struct printf_info *,
169 const void *const *) __THROW;
170
171 /* Group digits of number string. */
172 #ifdef COMPILE_WPRINTF
173 static CHAR_T *group_number (CHAR_T *, CHAR_T *, const char *, wchar_t)
174 __THROW internal_function;
175 #else
176 static CHAR_T *group_number (CHAR_T *, CHAR_T *, const char *, const char *)
177 __THROW internal_function;
178 #endif
179
180
181 /* The function itself. */
182 int
183 vfprintf (FILE *s, const CHAR_T *format, va_list ap)
184 {
185 /* The character used as thousands separator. */
186 #ifdef COMPILE_WPRINTF
187 wchar_t thousands_sep = L'\0';
188 #else
189 const char *thousands_sep = NULL;
190 #endif
191
192 /* The string describing the size of groups of digits. */
193 const char *grouping;
194
195 /* Place to accumulate the result. */
196 int done;
197
198 /* Current character in format string. */
199 const UCHAR_T *f;
200
201 /* End of leading constant string. */
202 const UCHAR_T *lead_str_end;
203
204 /* Points to next format specifier. */
205 const UCHAR_T *end_of_spec;
206
207 /* Buffer intermediate results. */
208 CHAR_T work_buffer[1000];
209 CHAR_T *workstart = NULL;
210 CHAR_T *workend;
211
212 /* State for restartable multibyte character handling functions. */
213 #ifndef COMPILE_WPRINTF
214 mbstate_t mbstate;
215 #endif
216
217 /* We have to save the original argument pointer. */
218 va_list ap_save;
219
220 /* Count number of specifiers we already processed. */
221 int nspecs_done;
222
223 /* For the %m format we may need the current `errno' value. */
224 int save_errno = errno;
225
226 /* 1 if format is in read-only memory, -1 if it is in writable memory,
227 0 if unknown. */
228 int readonly_format = 0;
229
230 /* This table maps a character into a number representing a
231 class. In each step there is a destination label for each
232 class. */
233 static const int jump_table[] =
234 {
235 /* ' ' */ 1, 0, 0, /* '#' */ 4,
236 0, /* '%' */ 14, 0, /* '\''*/ 6,
237 0, 0, /* '*' */ 7, /* '+' */ 2,
238 0, /* '-' */ 3, /* '.' */ 9, 0,
239 /* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
240 /* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
241 /* '8' */ 8, /* '9' */ 8, 0, 0,
242 0, 0, 0, 0,
243 0, /* 'A' */ 26, 0, /* 'C' */ 25,
244 0, /* 'E' */ 19, /* F */ 19, /* 'G' */ 19,
245 0, /* 'I' */ 29, 0, 0,
246 /* 'L' */ 12, 0, 0, 0,
247 0, 0, 0, /* 'S' */ 21,
248 0, 0, 0, 0,
249 /* 'X' */ 18, 0, /* 'Z' */ 13, 0,
250 0, 0, 0, 0,
251 0, /* 'a' */ 26, 0, /* 'c' */ 20,
252 /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
253 /* 'h' */ 10, /* 'i' */ 15, /* 'j' */ 28, 0,
254 /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
255 /* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
256 /* 't' */ 27, /* 'u' */ 16, 0, 0,
257 /* 'x' */ 18, 0, /* 'z' */ 13
258 };
259
260 #define NOT_IN_JUMP_RANGE(Ch) ((Ch) < L_(' ') || (Ch) > L_('z'))
261 #define CHAR_CLASS(Ch) (jump_table[(INT_T) (Ch) - L_(' ')])
262 #ifdef SHARED
263 /* 'int' is enough and it saves some space on 64 bit systems. */
264 # define JUMP_TABLE_TYPE const int
265 # define JUMP(ChExpr, table) \
266 do \
267 { \
268 int offset; \
269 void *__unbounded ptr; \
270 spec = (ChExpr); \
271 offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
272 : table[CHAR_CLASS (spec)]; \
273 ptr = &&do_form_unknown + offset; \
274 goto *ptr; \
275 } \
276 while (0)
277 #else
278 # define JUMP_TABLE_TYPE const void *const
279 # define JUMP(ChExpr, table) \
280 do \
281 { \
282 const void *__unbounded ptr; \
283 spec = (ChExpr); \
284 ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
285 : table[CHAR_CLASS (spec)]; \
286 goto *ptr; \
287 } \
288 while (0)
289 #endif
290
291 #define STEP0_3_TABLE \
292 /* Step 0: at the beginning. */ \
293 static JUMP_TABLE_TYPE step0_jumps[30] = \
294 { \
295 REF (form_unknown), \
296 REF (flag_space), /* for ' ' */ \
297 REF (flag_plus), /* for '+' */ \
298 REF (flag_minus), /* for '-' */ \
299 REF (flag_hash), /* for '<hash>' */ \
300 REF (flag_zero), /* for '0' */ \
301 REF (flag_quote), /* for '\'' */ \
302 REF (width_asterics), /* for '*' */ \
303 REF (width), /* for '1'...'9' */ \
304 REF (precision), /* for '.' */ \
305 REF (mod_half), /* for 'h' */ \
306 REF (mod_long), /* for 'l' */ \
307 REF (mod_longlong), /* for 'L', 'q' */ \
308 REF (mod_size_t), /* for 'z', 'Z' */ \
309 REF (form_percent), /* for '%' */ \
310 REF (form_integer), /* for 'd', 'i' */ \
311 REF (form_unsigned), /* for 'u' */ \
312 REF (form_octal), /* for 'o' */ \
313 REF (form_hexa), /* for 'X', 'x' */ \
314 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
315 REF (form_character), /* for 'c' */ \
316 REF (form_string), /* for 's', 'S' */ \
317 REF (form_pointer), /* for 'p' */ \
318 REF (form_number), /* for 'n' */ \
319 REF (form_strerror), /* for 'm' */ \
320 REF (form_wcharacter), /* for 'C' */ \
321 REF (form_floathex), /* for 'A', 'a' */ \
322 REF (mod_ptrdiff_t), /* for 't' */ \
323 REF (mod_intmax_t), /* for 'j' */ \
324 REF (flag_i18n), /* for 'I' */ \
325 }; \
326 /* Step 1: after processing width. */ \
327 static JUMP_TABLE_TYPE step1_jumps[30] = \
328 { \
329 REF (form_unknown), \
330 REF (form_unknown), /* for ' ' */ \
331 REF (form_unknown), /* for '+' */ \
332 REF (form_unknown), /* for '-' */ \
333 REF (form_unknown), /* for '<hash>' */ \
334 REF (form_unknown), /* for '0' */ \
335 REF (form_unknown), /* for '\'' */ \
336 REF (form_unknown), /* for '*' */ \
337 REF (form_unknown), /* 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 (form_unknown) /* for 'I' */ \
359 }; \
360 /* Step 2: after processing precision. */ \
361 static JUMP_TABLE_TYPE step2_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 (form_unknown), /* 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 3a: after processing first 'h' modifier. */ \
395 static JUMP_TABLE_TYPE step3a_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_halfhalf), /* for 'h' */ \
408 REF (form_unknown), /* for 'l' */ \
409 REF (form_unknown), /* for 'L', 'q' */ \
410 REF (form_unknown), /* 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_unknown), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
417 REF (form_unknown), /* for 'c' */ \
418 REF (form_unknown), /* for 's', 'S' */ \
419 REF (form_unknown), /* for 'p' */ \
420 REF (form_number), /* for 'n' */ \
421 REF (form_unknown), /* for 'm' */ \
422 REF (form_unknown), /* for 'C' */ \
423 REF (form_unknown), /* for 'A', 'a' */ \
424 REF (form_unknown), /* for 't' */ \
425 REF (form_unknown), /* for 'j' */ \
426 REF (form_unknown) /* for 'I' */ \
427 }; \
428 /* Step 3b: after processing first 'l' modifier. */ \
429 static JUMP_TABLE_TYPE step3b_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 (form_unknown), /* for 'h' */ \
442 REF (mod_longlong), /* 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_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
451 REF (form_character), /* for 'c' */ \
452 REF (form_string), /* for 's', 'S' */ \
453 REF (form_pointer), /* for 'p' */ \
454 REF (form_number), /* for 'n' */ \
455 REF (form_strerror), /* for 'm' */ \
456 REF (form_wcharacter), /* for 'C' */ \
457 REF (form_floathex), /* for 'A', 'a' */ \
458 REF (form_unknown), /* for 't' */ \
459 REF (form_unknown), /* for 'j' */ \
460 REF (form_unknown) /* for 'I' */ \
461 }
462
463 #define STEP4_TABLE \
464 /* Step 4: processing format specifier. */ \
465 static JUMP_TABLE_TYPE step4_jumps[30] = \
466 { \
467 REF (form_unknown), \
468 REF (form_unknown), /* for ' ' */ \
469 REF (form_unknown), /* for '+' */ \
470 REF (form_unknown), /* for '-' */ \
471 REF (form_unknown), /* for '<hash>' */ \
472 REF (form_unknown), /* for '0' */ \
473 REF (form_unknown), /* for '\'' */ \
474 REF (form_unknown), /* for '*' */ \
475 REF (form_unknown), /* for '1'...'9' */ \
476 REF (form_unknown), /* for '.' */ \
477 REF (form_unknown), /* for 'h' */ \
478 REF (form_unknown), /* for 'l' */ \
479 REF (form_unknown), /* for 'L', 'q' */ \
480 REF (form_unknown), /* for 'z', 'Z' */ \
481 REF (form_percent), /* for '%' */ \
482 REF (form_integer), /* for 'd', 'i' */ \
483 REF (form_unsigned), /* for 'u' */ \
484 REF (form_octal), /* for 'o' */ \
485 REF (form_hexa), /* for 'X', 'x' */ \
486 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
487 REF (form_character), /* for 'c' */ \
488 REF (form_string), /* for 's', 'S' */ \
489 REF (form_pointer), /* for 'p' */ \
490 REF (form_number), /* for 'n' */ \
491 REF (form_strerror), /* for 'm' */ \
492 REF (form_wcharacter), /* for 'C' */ \
493 REF (form_floathex), /* for 'A', 'a' */ \
494 REF (form_unknown), /* for 't' */ \
495 REF (form_unknown), /* for 'j' */ \
496 REF (form_unknown) /* for 'I' */ \
497 }
498
499
500 #define process_arg(fspec) \
501 /* Start real work. We know about all flags and modifiers and \
502 now process the wanted format specifier. */ \
503 LABEL (form_percent): \
504 /* Write a literal "%". */ \
505 outchar (L_('%')); \
506 break; \
507 \
508 LABEL (form_integer): \
509 /* Signed decimal integer. */ \
510 base = 10; \
511 \
512 if (is_longlong) \
513 { \
514 long long int signed_number; \
515 \
516 if (fspec == NULL) \
517 signed_number = va_arg (ap, long long int); \
518 else \
519 signed_number = args_value[fspec->data_arg].pa_long_long_int; \
520 \
521 is_negative = signed_number < 0; \
522 number.longlong = is_negative ? (- signed_number) : signed_number; \
523 \
524 goto LABEL (longlong_number); \
525 } \
526 else \
527 { \
528 long int signed_number; \
529 \
530 if (fspec == NULL) \
531 { \
532 if (is_long_num) \
533 signed_number = va_arg (ap, long int); \
534 else if (is_char) \
535 signed_number = (signed char) va_arg (ap, unsigned int); \
536 else if (!is_short) \
537 signed_number = va_arg (ap, int); \
538 else \
539 signed_number = (short int) va_arg (ap, unsigned int); \
540 } \
541 else \
542 if (is_long_num) \
543 signed_number = args_value[fspec->data_arg].pa_long_int; \
544 else if (is_char) \
545 signed_number = (signed char) \
546 args_value[fspec->data_arg].pa_u_int; \
547 else if (!is_short) \
548 signed_number = args_value[fspec->data_arg].pa_int; \
549 else \
550 signed_number = (short int) \
551 args_value[fspec->data_arg].pa_u_int; \
552 \
553 is_negative = signed_number < 0; \
554 number.word = is_negative ? (- signed_number) : signed_number; \
555 \
556 goto LABEL (number); \
557 } \
558 /* NOTREACHED */ \
559 \
560 LABEL (form_unsigned): \
561 /* Unsigned decimal integer. */ \
562 base = 10; \
563 goto LABEL (unsigned_number); \
564 /* NOTREACHED */ \
565 \
566 LABEL (form_octal): \
567 /* Unsigned octal integer. */ \
568 base = 8; \
569 goto LABEL (unsigned_number); \
570 /* NOTREACHED */ \
571 \
572 LABEL (form_hexa): \
573 /* Unsigned hexadecimal integer. */ \
574 base = 16; \
575 \
576 LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
577 \
578 /* ISO specifies the `+' and ` ' flags only for signed \
579 conversions. */ \
580 is_negative = 0; \
581 showsign = 0; \
582 space = 0; \
583 \
584 if (is_longlong) \
585 { \
586 if (fspec == NULL) \
587 number.longlong = va_arg (ap, unsigned long long int); \
588 else \
589 number.longlong = args_value[fspec->data_arg].pa_u_long_long_int; \
590 \
591 LABEL (longlong_number): \
592 if (prec < 0) \
593 /* Supply a default precision if none was given. */ \
594 prec = 1; \
595 else \
596 /* We have to take care for the '0' flag. If a precision \
597 is given it must be ignored. */ \
598 pad = L_(' '); \
599 \
600 /* If the precision is 0 and the number is 0 nothing has to \
601 be written for the number, except for the 'o' format in \
602 alternate form. */ \
603 if (prec == 0 && number.longlong == 0) \
604 { \
605 string = workend; \
606 if (base == 8 && alt) \
607 *--string = L_('0'); \
608 } \
609 else \
610 { \
611 /* Put the number in WORK. */ \
612 string = _itoa (number.longlong, workend, base, \
613 spec == L_('X')); \
614 if (group && grouping) \
615 string = group_number (string, workend, grouping, \
616 thousands_sep); \
617 \
618 if (use_outdigits && base == 10) \
619 string = _i18n_number_rewrite (string, workend); \
620 } \
621 /* Simplify further test for num != 0. */ \
622 number.word = number.longlong != 0; \
623 } \
624 else \
625 { \
626 if (fspec == NULL) \
627 { \
628 if (is_long_num) \
629 number.word = va_arg (ap, unsigned long int); \
630 else if (is_char) \
631 number.word = (unsigned char) va_arg (ap, unsigned int); \
632 else if (!is_short) \
633 number.word = va_arg (ap, unsigned int); \
634 else \
635 number.word = (unsigned short int) va_arg (ap, unsigned int); \
636 } \
637 else \
638 if (is_long_num) \
639 number.word = args_value[fspec->data_arg].pa_u_long_int; \
640 else if (is_char) \
641 number.word = (unsigned char) \
642 args_value[fspec->data_arg].pa_u_int; \
643 else if (!is_short) \
644 number.word = args_value[fspec->data_arg].pa_u_int; \
645 else \
646 number.word = (unsigned short int) \
647 args_value[fspec->data_arg].pa_u_int; \
648 \
649 LABEL (number): \
650 if (prec < 0) \
651 /* Supply a default precision if none was given. */ \
652 prec = 1; \
653 else \
654 /* We have to take care for the '0' flag. If a precision \
655 is given it must be ignored. */ \
656 pad = L_(' '); \
657 \
658 /* If the precision is 0 and the number is 0 nothing has to \
659 be written for the number, except for the 'o' format in \
660 alternate form. */ \
661 if (prec == 0 && number.word == 0) \
662 { \
663 string = workend; \
664 if (base == 8 && alt) \
665 *--string = L_('0'); \
666 } \
667 else \
668 { \
669 /* Put the number in WORK. */ \
670 string = _itoa_word (number.word, workend, base, \
671 spec == L_('X')); \
672 if (group && grouping) \
673 string = group_number (string, workend, grouping, \
674 thousands_sep); \
675 \
676 if (use_outdigits && base == 10) \
677 string = _i18n_number_rewrite (string, workend); \
678 } \
679 } \
680 \
681 if (prec <= workend - string && number.word != 0 && alt && base == 8) \
682 /* Add octal marker. */ \
683 *--string = L_('0'); \
684 \
685 prec = MAX (0, prec - (workend - string)); \
686 \
687 if (!left) \
688 { \
689 width -= workend - string + prec; \
690 \
691 if (number.word != 0 && alt && base == 16) \
692 /* Account for 0X hex marker. */ \
693 width -= 2; \
694 \
695 if (is_negative || showsign || space) \
696 --width; \
697 \
698 if (pad == L_(' ')) \
699 { \
700 PAD (L_(' ')); \
701 width = 0; \
702 } \
703 \
704 if (is_negative) \
705 outchar (L_('-')); \
706 else if (showsign) \
707 outchar (L_('+')); \
708 else if (space) \
709 outchar (L_(' ')); \
710 \
711 if (number.word != 0 && alt && base == 16) \
712 { \
713 outchar (L_('0')); \
714 outchar (spec); \
715 } \
716 \
717 width += prec; \
718 PAD (L_('0')); \
719 \
720 outstring (string, workend - string); \
721 \
722 break; \
723 } \
724 else \
725 { \
726 if (is_negative) \
727 { \
728 outchar (L_('-')); \
729 --width; \
730 } \
731 else if (showsign) \
732 { \
733 outchar (L_('+')); \
734 --width; \
735 } \
736 else if (space) \
737 { \
738 outchar (L_(' ')); \
739 --width; \
740 } \
741 \
742 if (number.word != 0 && alt && base == 16) \
743 { \
744 outchar (L_('0')); \
745 outchar (spec); \
746 width -= 2; \
747 } \
748 \
749 width -= workend - string + prec; \
750 \
751 if (prec > 0) \
752 { \
753 int temp = width; \
754 width = prec; \
755 PAD (L_('0'));; \
756 width = temp; \
757 } \
758 \
759 outstring (string, workend - string); \
760 \
761 PAD (L_(' ')); \
762 break; \
763 } \
764 \
765 LABEL (form_float): \
766 { \
767 /* Floating-point number. This is handled by printf_fp.c. */ \
768 const void *ptr; \
769 int function_done; \
770 \
771 if (fspec == NULL) \
772 { \
773 if (__ldbl_is_dbl) \
774 is_long_double = 0; \
775 \
776 struct printf_info info = { .prec = prec, \
777 .width = width, \
778 .spec = spec, \
779 .is_long_double = is_long_double, \
780 .is_short = is_short, \
781 .is_long = is_long, \
782 .alt = alt, \
783 .space = space, \
784 .left = left, \
785 .showsign = showsign, \
786 .group = group, \
787 .pad = pad, \
788 .extra = 0, \
789 .i18n = use_outdigits, \
790 .wide = sizeof (CHAR_T) != 1 }; \
791 \
792 if (is_long_double) \
793 the_arg.pa_long_double = va_arg (ap, long double); \
794 else \
795 the_arg.pa_double = va_arg (ap, double); \
796 ptr = (const void *) &the_arg; \
797 \
798 function_done = __printf_fp (s, &info, &ptr); \
799 } \
800 else \
801 { \
802 ptr = (const void *) &args_value[fspec->data_arg]; \
803 if (__ldbl_is_dbl) \
804 { \
805 fspec->data_arg_type = PA_DOUBLE; \
806 fspec->info.is_long_double = 0; \
807 } \
808 \
809 function_done = __printf_fp (s, &fspec->info, &ptr); \
810 } \
811 \
812 if (function_done < 0) \
813 { \
814 /* Error in print handler. */ \
815 done = -1; \
816 goto all_done; \
817 } \
818 \
819 done += function_done; \
820 } \
821 break; \
822 \
823 LABEL (form_floathex): \
824 { \
825 /* Floating point number printed as hexadecimal number. */ \
826 const void *ptr; \
827 int function_done; \
828 \
829 if (fspec == NULL) \
830 { \
831 if (__ldbl_is_dbl) \
832 is_long_double = 0; \
833 \
834 struct printf_info info = { .prec = prec, \
835 .width = width, \
836 .spec = spec, \
837 .is_long_double = is_long_double, \
838 .is_short = is_short, \
839 .is_long = is_long, \
840 .alt = alt, \
841 .space = space, \
842 .left = left, \
843 .showsign = showsign, \
844 .group = group, \
845 .pad = pad, \
846 .extra = 0, \
847 .wide = sizeof (CHAR_T) != 1 }; \
848 \
849 if (is_long_double) \
850 the_arg.pa_long_double = va_arg (ap, long double); \
851 else \
852 the_arg.pa_double = va_arg (ap, double); \
853 ptr = (const void *) &the_arg; \
854 \
855 function_done = __printf_fphex (s, &info, &ptr); \
856 } \
857 else \
858 { \
859 ptr = (const void *) &args_value[fspec->data_arg]; \
860 if (__ldbl_is_dbl) \
861 fspec->info.is_long_double = 0; \
862 \
863 function_done = __printf_fphex (s, &fspec->info, &ptr); \
864 } \
865 \
866 if (function_done < 0) \
867 { \
868 /* Error in print handler. */ \
869 done = -1; \
870 goto all_done; \
871 } \
872 \
873 done += function_done; \
874 } \
875 break; \
876 \
877 LABEL (form_pointer): \
878 /* Generic pointer. */ \
879 { \
880 const void *ptr; \
881 if (fspec == NULL) \
882 ptr = va_arg (ap, void *); \
883 else \
884 ptr = args_value[fspec->data_arg].pa_pointer; \
885 if (ptr != NULL) \
886 { \
887 /* If the pointer is not NULL, write it as a %#x spec. */ \
888 base = 16; \
889 number.word = (unsigned long int) ptr; \
890 is_negative = 0; \
891 alt = 1; \
892 group = 0; \
893 spec = L_('x'); \
894 goto LABEL (number); \
895 } \
896 else \
897 { \
898 /* Write "(nil)" for a nil pointer. */ \
899 string = (CHAR_T *) L_("(nil)"); \
900 /* Make sure the full string "(nil)" is printed. */ \
901 if (prec < 5) \
902 prec = 5; \
903 is_long = 0; /* This is no wide-char string. */ \
904 goto LABEL (print_string); \
905 } \
906 } \
907 /* NOTREACHED */ \
908 \
909 LABEL (form_number): \
910 if (s->_flags2 & _IO_FLAGS2_FORTIFY) \
911 { \
912 if (! readonly_format) \
913 { \
914 extern int __readonly_area (const void *, size_t) \
915 attribute_hidden; \
916 readonly_format \
917 = __readonly_area (format, ((STR_LEN (format) + 1) \
918 * sizeof (CHAR_T))); \
919 } \
920 if (readonly_format < 0) \
921 __libc_fatal ("*** %n in writable segment detected ***\n"); \
922 } \
923 /* Answer the count of characters written. */ \
924 if (fspec == NULL) \
925 { \
926 if (is_longlong) \
927 *(long long int *) va_arg (ap, void *) = done; \
928 else if (is_long_num) \
929 *(long int *) va_arg (ap, void *) = done; \
930 else if (is_char) \
931 *(char *) va_arg (ap, void *) = done; \
932 else if (!is_short) \
933 *(int *) va_arg (ap, void *) = done; \
934 else \
935 *(short int *) va_arg (ap, void *) = done; \
936 } \
937 else \
938 if (is_longlong) \
939 *(long long int *) args_value[fspec->data_arg].pa_pointer = done; \
940 else if (is_long_num) \
941 *(long int *) args_value[fspec->data_arg].pa_pointer = done; \
942 else if (is_char) \
943 *(char *) args_value[fspec->data_arg].pa_pointer = done; \
944 else if (!is_short) \
945 *(int *) args_value[fspec->data_arg].pa_pointer = done; \
946 else \
947 *(short int *) args_value[fspec->data_arg].pa_pointer = done; \
948 break; \
949 \
950 LABEL (form_strerror): \
951 /* Print description of error ERRNO. */ \
952 string = \
953 (CHAR_T *) __strerror_r (save_errno, (char *) work_buffer, \
954 sizeof work_buffer); \
955 is_long = 0; /* This is no wide-char string. */ \
956 goto LABEL (print_string)
957
958 #ifdef COMPILE_WPRINTF
959 # define process_string_arg(fspec) \
960 LABEL (form_character): \
961 /* Character. */ \
962 if (is_long) \
963 goto LABEL (form_wcharacter); \
964 --width; /* Account for the character itself. */ \
965 if (!left) \
966 PAD (L' '); \
967 if (fspec == NULL) \
968 outchar (__btowc ((unsigned char) va_arg (ap, int))); /* Promoted. */ \
969 else \
970 outchar (__btowc ((unsigned char) \
971 args_value[fspec->data_arg].pa_int)); \
972 if (left) \
973 PAD (L' '); \
974 break; \
975 \
976 LABEL (form_wcharacter): \
977 { \
978 /* Wide character. */ \
979 --width; \
980 if (!left) \
981 PAD (L' '); \
982 if (fspec == NULL) \
983 outchar (va_arg (ap, wchar_t)); \
984 else \
985 outchar (args_value[fspec->data_arg].pa_wchar); \
986 if (left) \
987 PAD (L' '); \
988 } \
989 break; \
990 \
991 LABEL (form_string): \
992 { \
993 size_t len; \
994 int string_malloced; \
995 \
996 /* The string argument could in fact be `char *' or `wchar_t *'. \
997 But this should not make a difference here. */ \
998 if (fspec == NULL) \
999 string = (CHAR_T *) va_arg (ap, const wchar_t *); \
1000 else \
1001 string = (CHAR_T *) args_value[fspec->data_arg].pa_wstring; \
1002 \
1003 /* Entry point for printing other strings. */ \
1004 LABEL (print_string): \
1005 \
1006 string_malloced = 0; \
1007 if (string == NULL) \
1008 { \
1009 /* Write "(null)" if there's space. */ \
1010 if (prec == -1 \
1011 || prec >= (int) (sizeof (null) / sizeof (null[0])) - 1) \
1012 { \
1013 string = (CHAR_T *) null; \
1014 len = (sizeof (null) / sizeof (null[0])) - 1; \
1015 } \
1016 else \
1017 { \
1018 string = (CHAR_T *) L""; \
1019 len = 0; \
1020 } \
1021 } \
1022 else if (!is_long && spec != L_('S')) \
1023 { \
1024 /* This is complicated. We have to transform the multibyte \
1025 string into a wide character string. */ \
1026 const char *mbs = (const char *) string; \
1027 mbstate_t mbstate; \
1028 \
1029 len = prec != -1 ? (size_t) prec : strlen (mbs); \
1030 \
1031 /* Allocate dynamically an array which definitely is long \
1032 enough for the wide character version. */ \
1033 if (__libc_use_alloca (len * sizeof (wchar_t))) \
1034 string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \
1035 else if ((string = (CHAR_T *) malloc (len * sizeof (wchar_t))) \
1036 == NULL) \
1037 { \
1038 done = -1; \
1039 goto all_done; \
1040 } \
1041 else \
1042 string_malloced = 1; \
1043 \
1044 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1045 len = __mbsrtowcs (string, &mbs, len, &mbstate); \
1046 if (len == (size_t) -1) \
1047 { \
1048 /* Illegal multibyte character. */ \
1049 done = -1; \
1050 goto all_done; \
1051 } \
1052 } \
1053 else \
1054 { \
1055 if (prec != -1) \
1056 /* Search for the end of the string, but don't search past \
1057 the length specified by the precision. */ \
1058 len = __wcsnlen (string, prec); \
1059 else \
1060 len = __wcslen (string); \
1061 } \
1062 \
1063 if ((width -= len) < 0) \
1064 { \
1065 outstring (string, len); \
1066 break; \
1067 } \
1068 \
1069 if (!left) \
1070 PAD (L' '); \
1071 outstring (string, len); \
1072 if (left) \
1073 PAD (L' '); \
1074 if (__builtin_expect (string_malloced, 0)) \
1075 free (string); \
1076 } \
1077 break;
1078 #else
1079 # define process_string_arg(fspec) \
1080 LABEL (form_character): \
1081 /* Character. */ \
1082 if (is_long) \
1083 goto LABEL (form_wcharacter); \
1084 --width; /* Account for the character itself. */ \
1085 if (!left) \
1086 PAD (' '); \
1087 if (fspec == NULL) \
1088 outchar ((unsigned char) va_arg (ap, int)); /* Promoted. */ \
1089 else \
1090 outchar ((unsigned char) args_value[fspec->data_arg].pa_int); \
1091 if (left) \
1092 PAD (' '); \
1093 break; \
1094 \
1095 LABEL (form_wcharacter): \
1096 { \
1097 /* Wide character. */ \
1098 char buf[MB_CUR_MAX]; \
1099 mbstate_t mbstate; \
1100 size_t len; \
1101 \
1102 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1103 len = __wcrtomb (buf, (fspec == NULL ? va_arg (ap, wchar_t) \
1104 : args_value[fspec->data_arg].pa_wchar), \
1105 &mbstate); \
1106 if (len == (size_t) -1) \
1107 { \
1108 /* Something went wron gduring the conversion. Bail out. */ \
1109 done = -1; \
1110 goto all_done; \
1111 } \
1112 width -= len; \
1113 if (!left) \
1114 PAD (' '); \
1115 outstring (buf, len); \
1116 if (left) \
1117 PAD (' '); \
1118 } \
1119 break; \
1120 \
1121 LABEL (form_string): \
1122 { \
1123 size_t len; \
1124 int string_malloced; \
1125 \
1126 /* The string argument could in fact be `char *' or `wchar_t *'. \
1127 But this should not make a difference here. */ \
1128 if (fspec == NULL) \
1129 string = (char *) va_arg (ap, const char *); \
1130 else \
1131 string = (char *) args_value[fspec->data_arg].pa_string; \
1132 \
1133 /* Entry point for printing other strings. */ \
1134 LABEL (print_string): \
1135 \
1136 string_malloced = 0; \
1137 if (string == NULL) \
1138 { \
1139 /* Write "(null)" if there's space. */ \
1140 if (prec == -1 || prec >= (int) sizeof (null) - 1) \
1141 { \
1142 string = (char *) null; \
1143 len = sizeof (null) - 1; \
1144 } \
1145 else \
1146 { \
1147 string = (char *) ""; \
1148 len = 0; \
1149 } \
1150 } \
1151 else if (!is_long && spec != L_('S')) \
1152 { \
1153 if (prec != -1) \
1154 { \
1155 /* Search for the end of the string, but don't search past \
1156 the length (in bytes) specified by the precision. Also \
1157 don't use incomplete characters. */ \
1158 if (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MB_CUR_MAX) == 1) \
1159 len = __strnlen (string, prec); \
1160 else \
1161 { \
1162 /* In case we have a multibyte character set the \
1163 situation is more compilcated. We must not copy \
1164 bytes at the end which form an incomplete character. */\
1165 wchar_t ignore[prec]; \
1166 const char *str2 = string; \
1167 mbstate_t ps; \
1168 \
1169 memset (&ps, '\0', sizeof (ps)); \
1170 if (__mbsnrtowcs (ignore, &str2, prec, prec, &ps) \
1171 == (size_t) -1) \
1172 { \
1173 done = -1; \
1174 goto all_done; \
1175 } \
1176 if (str2 == NULL) \
1177 len = strlen (string); \
1178 else \
1179 len = str2 - string - (ps.__count & 7); \
1180 } \
1181 } \
1182 else \
1183 len = strlen (string); \
1184 } \
1185 else \
1186 { \
1187 const wchar_t *s2 = (const wchar_t *) string; \
1188 mbstate_t mbstate; \
1189 \
1190 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1191 \
1192 if (prec >= 0) \
1193 { \
1194 /* The string `s2' might not be NUL terminated. */ \
1195 if (__libc_use_alloca (prec)) \
1196 string = (char *) alloca (prec); \
1197 else if ((string = (char *) malloc (prec)) == NULL) \
1198 { \
1199 done = -1; \
1200 goto all_done; \
1201 } \
1202 else \
1203 string_malloced = 1; \
1204 len = __wcsrtombs (string, &s2, prec, &mbstate); \
1205 } \
1206 else \
1207 { \
1208 len = __wcsrtombs (NULL, &s2, 0, &mbstate); \
1209 if (len != (size_t) -1) \
1210 { \
1211 assert (__mbsinit (&mbstate)); \
1212 s2 = (const wchar_t *) string; \
1213 if (__libc_use_alloca (len + 1)) \
1214 string = (char *) alloca (len + 1); \
1215 else if ((string = (char *) malloc (len + 1)) == NULL) \
1216 { \
1217 done = -1; \
1218 goto all_done; \
1219 } \
1220 else \
1221 string_malloced = 1; \
1222 (void) __wcsrtombs (string, &s2, len + 1, &mbstate); \
1223 } \
1224 } \
1225 \
1226 if (len == (size_t) -1) \
1227 { \
1228 /* Illegal wide-character string. */ \
1229 done = -1; \
1230 goto all_done; \
1231 } \
1232 } \
1233 \
1234 if ((width -= len) < 0) \
1235 { \
1236 outstring (string, len); \
1237 break; \
1238 } \
1239 \
1240 if (!left) \
1241 PAD (' '); \
1242 outstring (string, len); \
1243 if (left) \
1244 PAD (' '); \
1245 if (__builtin_expect (string_malloced, 0)) \
1246 free (string); \
1247 } \
1248 break;
1249 #endif
1250
1251 /* Orient the stream. */
1252 #ifdef ORIENT
1253 ORIENT;
1254 #endif
1255
1256 /* Sanity check of arguments. */
1257 ARGCHECK (s, format);
1258
1259 #ifdef ORIENT
1260 /* Check for correct orientation. */
1261 if (_IO_vtable_offset (s) == 0 &&
1262 _IO_fwide (s, sizeof (CHAR_T) == 1 ? -1 : 1)
1263 != (sizeof (CHAR_T) == 1 ? -1 : 1))
1264 /* The stream is already oriented otherwise. */
1265 return EOF;
1266 #endif
1267
1268 if (UNBUFFERED_P (s))
1269 /* Use a helper function which will allocate a local temporary buffer
1270 for the stream and then call us again. */
1271 return buffered_vfprintf (s, format, ap);
1272
1273 /* Initialize local variables. */
1274 done = 0;
1275 grouping = (const char *) -1;
1276 #ifdef __va_copy
1277 /* This macro will be available soon in gcc's <stdarg.h>. We need it
1278 since on some systems `va_list' is not an integral type. */
1279 __va_copy (ap_save, ap);
1280 #else
1281 ap_save = ap;
1282 #endif
1283 nspecs_done = 0;
1284
1285 #ifdef COMPILE_WPRINTF
1286 /* Find the first format specifier. */
1287 f = lead_str_end = __find_specwc ((const UCHAR_T *) format);
1288 #else
1289 /* Put state for processing format string in initial state. */
1290 memset (&mbstate, '\0', sizeof (mbstate_t));
1291
1292 /* Find the first format specifier. */
1293 f = lead_str_end = __find_specmb (format, &mbstate);
1294 #endif
1295
1296 /* Lock stream. */
1297 _IO_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, s);
1298 _IO_flockfile (s);
1299
1300 /* Write the literal text before the first format. */
1301 outstring ((const UCHAR_T *) format,
1302 lead_str_end - (const UCHAR_T *) format);
1303
1304 /* If we only have to print a simple string, return now. */
1305 if (*f == L_('\0'))
1306 goto all_done;
1307
1308 /* Process whole format string. */
1309 do
1310 {
1311 #ifdef SHARED
1312 # define REF(Name) &&do_##Name - &&do_form_unknown
1313 #else
1314 # define REF(Name) &&do_##Name
1315 #endif
1316 #define LABEL(Name) do_##Name
1317 STEP0_3_TABLE;
1318 STEP4_TABLE;
1319
1320 union printf_arg *args_value; /* This is not used here but ... */
1321 int is_negative; /* Flag for negative number. */
1322 union
1323 {
1324 unsigned long long int longlong;
1325 unsigned long int word;
1326 } number;
1327 int base;
1328 union printf_arg the_arg;
1329 CHAR_T *string; /* Pointer to argument string. */
1330 int alt = 0; /* Alternate format. */
1331 int space = 0; /* Use space prefix if no sign is needed. */
1332 int left = 0; /* Left-justify output. */
1333 int showsign = 0; /* Always begin with plus or minus sign. */
1334 int group = 0; /* Print numbers according grouping rules. */
1335 int is_long_double = 0; /* Argument is long double/ long long int. */
1336 int is_short = 0; /* Argument is short int. */
1337 int is_long = 0; /* Argument is long int. */
1338 int is_char = 0; /* Argument is promoted (unsigned) char. */
1339 int width = 0; /* Width of output; 0 means none specified. */
1340 int prec = -1; /* Precision of output; -1 means none specified. */
1341 /* This flag is set by the 'I' modifier and selects the use of the
1342 `outdigits' as determined by the current locale. */
1343 int use_outdigits = 0;
1344 UCHAR_T pad = L_(' ');/* Padding character. */
1345 CHAR_T spec;
1346
1347 workstart = NULL;
1348 workend = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
1349
1350 /* Get current character in format string. */
1351 JUMP (*++f, step0_jumps);
1352
1353 /* ' ' flag. */
1354 LABEL (flag_space):
1355 space = 1;
1356 JUMP (*++f, step0_jumps);
1357
1358 /* '+' flag. */
1359 LABEL (flag_plus):
1360 showsign = 1;
1361 JUMP (*++f, step0_jumps);
1362
1363 /* The '-' flag. */
1364 LABEL (flag_minus):
1365 left = 1;
1366 pad = L_(' ');
1367 JUMP (*++f, step0_jumps);
1368
1369 /* The '#' flag. */
1370 LABEL (flag_hash):
1371 alt = 1;
1372 JUMP (*++f, step0_jumps);
1373
1374 /* The '0' flag. */
1375 LABEL (flag_zero):
1376 if (!left)
1377 pad = L_('0');
1378 JUMP (*++f, step0_jumps);
1379
1380 /* The '\'' flag. */
1381 LABEL (flag_quote):
1382 group = 1;
1383
1384 if (grouping == (const char *) -1)
1385 {
1386 #ifdef COMPILE_WPRINTF
1387 thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
1388 _NL_NUMERIC_THOUSANDS_SEP_WC);
1389 #else
1390 thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1391 #endif
1392
1393 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1394 if (*grouping == '\0' || *grouping == CHAR_MAX
1395 #ifdef COMPILE_WPRINTF
1396 || thousands_sep == L'\0'
1397 #else
1398 || *thousands_sep == '\0'
1399 #endif
1400 )
1401 grouping = NULL;
1402 }
1403 JUMP (*++f, step0_jumps);
1404
1405 LABEL (flag_i18n):
1406 use_outdigits = 1;
1407 JUMP (*++f, step0_jumps);
1408
1409 /* Get width from argument. */
1410 LABEL (width_asterics):
1411 {
1412 const UCHAR_T *tmp; /* Temporary value. */
1413
1414 tmp = ++f;
1415 if (ISDIGIT (*tmp) && read_int (&tmp) && *tmp == L_('$'))
1416 /* The width comes from a positional parameter. */
1417 goto do_positional;
1418
1419 width = va_arg (ap, int);
1420
1421 /* Negative width means left justified. */
1422 if (width < 0)
1423 {
1424 width = -width;
1425 pad = L_(' ');
1426 left = 1;
1427 }
1428
1429 if (width + 32 >= (int) (sizeof (work_buffer)
1430 / sizeof (work_buffer[0])))
1431 {
1432 /* We have to use a special buffer. The "32" is just a safe
1433 bet for all the output which is not counted in the width. */
1434 if (__libc_use_alloca ((width + 32) * sizeof (CHAR_T)))
1435 workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T))
1436 + (width + 32));
1437 else
1438 {
1439 workstart = (CHAR_T *) malloc ((width + 32) * sizeof (CHAR_T));
1440 if (workstart == NULL)
1441 {
1442 done = -1;
1443 goto all_done;
1444 }
1445 workend = workstart + (width + 32);
1446 }
1447 }
1448 }
1449 JUMP (*f, step1_jumps);
1450
1451 /* Given width in format string. */
1452 LABEL (width):
1453 width = read_int (&f);
1454
1455 if (width + 32 >= (int) (sizeof (work_buffer) / sizeof (work_buffer[0])))
1456 {
1457 /* We have to use a special buffer. The "32" is just a safe
1458 bet for all the output which is not counted in the width. */
1459 if (__libc_use_alloca ((width + 32) * sizeof (CHAR_T)))
1460 workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T))
1461 + (width + 32));
1462 else
1463 {
1464 workstart = (CHAR_T *) malloc ((width + 32) * sizeof (CHAR_T));
1465 if (workstart == NULL)
1466 {
1467 done = -1;
1468 goto all_done;
1469 }
1470 workend = workstart + (width + 32);
1471 }
1472 }
1473 if (*f == L_('$'))
1474 /* Oh, oh. The argument comes from a positional parameter. */
1475 goto do_positional;
1476 JUMP (*f, step1_jumps);
1477
1478 LABEL (precision):
1479 ++f;
1480 if (*f == L_('*'))
1481 {
1482 const UCHAR_T *tmp; /* Temporary value. */
1483
1484 tmp = ++f;
1485 if (ISDIGIT (*tmp) && read_int (&tmp) > 0 && *tmp == L_('$'))
1486 /* The precision comes from a positional parameter. */
1487 goto do_positional;
1488
1489 prec = va_arg (ap, int);
1490
1491 /* If the precision is negative the precision is omitted. */
1492 if (prec < 0)
1493 prec = -1;
1494 }
1495 else if (ISDIGIT (*f))
1496 prec = read_int (&f);
1497 else
1498 prec = 0;
1499 if (prec > width
1500 && prec + 32 > (int)(sizeof (work_buffer) / sizeof (work_buffer[0])))
1501 {
1502 if (__libc_use_alloca ((prec + 32) * sizeof (CHAR_T)))
1503 workend = ((CHAR_T *) alloca ((prec + 32) * sizeof (CHAR_T)))
1504 + (prec + 32);
1505 else
1506 {
1507 workstart = (CHAR_T *) malloc ((prec + 32) * sizeof (CHAR_T));
1508 if (workstart == NULL)
1509 {
1510 done = -1;
1511 goto all_done;
1512 }
1513 workend = workstart + (prec + 32);
1514 }
1515 }
1516 JUMP (*f, step2_jumps);
1517
1518 /* Process 'h' modifier. There might another 'h' following. */
1519 LABEL (mod_half):
1520 is_short = 1;
1521 JUMP (*++f, step3a_jumps);
1522
1523 /* Process 'hh' modifier. */
1524 LABEL (mod_halfhalf):
1525 is_short = 0;
1526 is_char = 1;
1527 JUMP (*++f, step4_jumps);
1528
1529 /* Process 'l' modifier. There might another 'l' following. */
1530 LABEL (mod_long):
1531 is_long = 1;
1532 JUMP (*++f, step3b_jumps);
1533
1534 /* Process 'L', 'q', or 'll' modifier. No other modifier is
1535 allowed to follow. */
1536 LABEL (mod_longlong):
1537 is_long_double = 1;
1538 is_long = 1;
1539 JUMP (*++f, step4_jumps);
1540
1541 LABEL (mod_size_t):
1542 is_long_double = sizeof (size_t) > sizeof (unsigned long int);
1543 is_long = sizeof (size_t) > sizeof (unsigned int);
1544 JUMP (*++f, step4_jumps);
1545
1546 LABEL (mod_ptrdiff_t):
1547 is_long_double = sizeof (ptrdiff_t) > sizeof (unsigned long int);
1548 is_long = sizeof (ptrdiff_t) > sizeof (unsigned int);
1549 JUMP (*++f, step4_jumps);
1550
1551 LABEL (mod_intmax_t):
1552 is_long_double = sizeof (intmax_t) > sizeof (unsigned long int);
1553 is_long = sizeof (intmax_t) > sizeof (unsigned int);
1554 JUMP (*++f, step4_jumps);
1555
1556 /* Process current format. */
1557 while (1)
1558 {
1559 process_arg (((struct printf_spec *) NULL));
1560 process_string_arg (((struct printf_spec *) NULL));
1561
1562 LABEL (form_unknown):
1563 if (spec == L_('\0'))
1564 {
1565 /* The format string ended before the specifier is complete. */
1566 done = -1;
1567 goto all_done;
1568 }
1569
1570 /* If we are in the fast loop force entering the complicated
1571 one. */
1572 goto do_positional;
1573 }
1574
1575 /* The format is correctly handled. */
1576 ++nspecs_done;
1577
1578 if (__builtin_expect (workstart != NULL, 0))
1579 free (workstart);
1580 workstart = NULL;
1581
1582 /* Look for next format specifier. */
1583 #ifdef COMPILE_WPRINTF
1584 f = __find_specwc ((end_of_spec = ++f));
1585 #else
1586 f = __find_specmb ((end_of_spec = ++f), &mbstate);
1587 #endif
1588
1589 /* Write the following constant string. */
1590 outstring (end_of_spec, f - end_of_spec);
1591 }
1592 while (*f != L_('\0'));
1593
1594 /* Unlock stream and return. */
1595 goto all_done;
1596
1597 /* Here starts the more complex loop to handle positional parameters. */
1598 do_positional:
1599 {
1600 /* Array with information about the needed arguments. This has to
1601 be dynamically extensible. */
1602 size_t nspecs = 0;
1603 size_t nspecs_max = 32; /* A more or less arbitrary start value. */
1604 struct printf_spec *specs
1605 = alloca (nspecs_max * sizeof (struct printf_spec));
1606
1607 /* The number of arguments the format string requests. This will
1608 determine the size of the array needed to store the argument
1609 attributes. */
1610 size_t nargs = 0;
1611 int *args_type;
1612 union printf_arg *args_value = NULL;
1613
1614 /* Positional parameters refer to arguments directly. This could
1615 also determine the maximum number of arguments. Track the
1616 maximum number. */
1617 size_t max_ref_arg = 0;
1618
1619 /* Just a counter. */
1620 size_t cnt;
1621
1622
1623 if (grouping == (const char *) -1)
1624 {
1625 #ifdef COMPILE_WPRINTF
1626 thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
1627 _NL_NUMERIC_THOUSANDS_SEP_WC);
1628 #else
1629 thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1630 #endif
1631
1632 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1633 if (*grouping == '\0' || *grouping == CHAR_MAX)
1634 grouping = NULL;
1635 }
1636
1637 for (f = lead_str_end; *f != L_('\0'); f = specs[nspecs++].next_fmt)
1638 {
1639 if (nspecs >= nspecs_max)
1640 {
1641 /* Extend the array of format specifiers. */
1642 struct printf_spec *old = specs;
1643
1644 nspecs_max *= 2;
1645 specs = alloca (nspecs_max * sizeof (struct printf_spec));
1646
1647 if (specs == &old[nspecs])
1648 /* Stack grows up, OLD was the last thing allocated;
1649 extend it. */
1650 nspecs_max += nspecs_max / 2;
1651 else
1652 {
1653 /* Copy the old array's elements to the new space. */
1654 memcpy (specs, old, nspecs * sizeof (struct printf_spec));
1655 if (old == &specs[nspecs])
1656 /* Stack grows down, OLD was just below the new
1657 SPECS. We can use that space when the new space
1658 runs out. */
1659 nspecs_max += nspecs_max / 2;
1660 }
1661 }
1662
1663 /* Parse the format specifier. */
1664 #ifdef COMPILE_WPRINTF
1665 nargs += __parse_one_specwc (f, nargs, &specs[nspecs], &max_ref_arg);
1666 #else
1667 nargs += __parse_one_specmb (f, nargs, &specs[nspecs], &max_ref_arg,
1668 &mbstate);
1669 #endif
1670 }
1671
1672 /* Determine the number of arguments the format string consumes. */
1673 nargs = MAX (nargs, max_ref_arg);
1674
1675 /* Allocate memory for the argument descriptions. */
1676 args_type = alloca (nargs * sizeof (int));
1677 memset (args_type, s->_flags2 & _IO_FLAGS2_FORTIFY ? '\xff' : '\0',
1678 nargs * sizeof (int));
1679 args_value = alloca (nargs * sizeof (union printf_arg));
1680
1681 /* XXX Could do sanity check here: If any element in ARGS_TYPE is
1682 still zero after this loop, format is invalid. For now we
1683 simply use 0 as the value. */
1684
1685 /* Fill in the types of all the arguments. */
1686 for (cnt = 0; cnt < nspecs; ++cnt)
1687 {
1688 /* If the width is determined by an argument this is an int. */
1689 if (specs[cnt].width_arg != -1)
1690 args_type[specs[cnt].width_arg] = PA_INT;
1691
1692 /* If the precision is determined by an argument this is an int. */
1693 if (specs[cnt].prec_arg != -1)
1694 args_type[specs[cnt].prec_arg] = PA_INT;
1695
1696 switch (specs[cnt].ndata_args)
1697 {
1698 case 0: /* No arguments. */
1699 break;
1700 case 1: /* One argument; we already have the type. */
1701 args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
1702 break;
1703 default:
1704 /* We have more than one argument for this format spec.
1705 We must call the arginfo function again to determine
1706 all the types. */
1707 (void) (*__printf_arginfo_table[specs[cnt].info.spec])
1708 (&specs[cnt].info,
1709 specs[cnt].ndata_args, &args_type[specs[cnt].data_arg]);
1710 break;
1711 }
1712 }
1713
1714 /* Now we know all the types and the order. Fill in the argument
1715 values. */
1716 for (cnt = 0; cnt < nargs; ++cnt)
1717 switch (args_type[cnt])
1718 {
1719 #define T(tag, mem, type) \
1720 case tag: \
1721 args_value[cnt].mem = va_arg (ap_save, type); \
1722 break
1723
1724 T (PA_CHAR, pa_int, int); /* Promoted. */
1725 T (PA_WCHAR, pa_wchar, wint_t);
1726 T (PA_INT|PA_FLAG_SHORT, pa_int, int); /* Promoted. */
1727 T (PA_INT, pa_int, int);
1728 T (PA_INT|PA_FLAG_LONG, pa_long_int, long int);
1729 T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
1730 T (PA_FLOAT, pa_double, double); /* Promoted. */
1731 T (PA_DOUBLE, pa_double, double);
1732 case PA_DOUBLE|PA_FLAG_LONG_DOUBLE:
1733 if (__ldbl_is_dbl)
1734 {
1735 args_value[cnt].pa_double = va_arg (ap_save, double);
1736 args_type[cnt] &= ~PA_FLAG_LONG_DOUBLE;
1737 }
1738 else
1739 args_value[cnt].pa_long_double = va_arg (ap_save, long double);
1740 break;
1741 T (PA_STRING, pa_string, const char *);
1742 T (PA_WSTRING, pa_wstring, const wchar_t *);
1743 T (PA_POINTER, pa_pointer, void *);
1744 #undef T
1745 default:
1746 if ((args_type[cnt] & PA_FLAG_PTR) != 0)
1747 args_value[cnt].pa_pointer = va_arg (ap_save, void *);
1748 else
1749 args_value[cnt].pa_long_double = 0.0;
1750 break;
1751 case -1:
1752 /* Error case. Not all parameters appear in N$ format
1753 strings. We have no way to determine their type. */
1754 assert (s->_flags2 & _IO_FLAGS2_FORTIFY);
1755 __libc_fatal ("*** invalid %N$ use detected ***\n");
1756 }
1757
1758 /* Now walk through all format specifiers and process them. */
1759 for (; (size_t) nspecs_done < nspecs; ++nspecs_done)
1760 {
1761 #undef REF
1762 #ifdef SHARED
1763 # define REF(Name) &&do2_##Name - &&do_form_unknown
1764 #else
1765 # define REF(Name) &&do2_##Name
1766 #endif
1767 #undef LABEL
1768 #define LABEL(Name) do2_##Name
1769 STEP4_TABLE;
1770
1771 int is_negative;
1772 union
1773 {
1774 unsigned long long int longlong;
1775 unsigned long int word;
1776 } number;
1777 int base;
1778 union printf_arg the_arg;
1779 CHAR_T *string; /* Pointer to argument string. */
1780
1781 /* Fill variables from values in struct. */
1782 int alt = specs[nspecs_done].info.alt;
1783 int space = specs[nspecs_done].info.space;
1784 int left = specs[nspecs_done].info.left;
1785 int showsign = specs[nspecs_done].info.showsign;
1786 int group = specs[nspecs_done].info.group;
1787 int is_long_double = specs[nspecs_done].info.is_long_double;
1788 int is_short = specs[nspecs_done].info.is_short;
1789 int is_char = specs[nspecs_done].info.is_char;
1790 int is_long = specs[nspecs_done].info.is_long;
1791 int width = specs[nspecs_done].info.width;
1792 int prec = specs[nspecs_done].info.prec;
1793 int use_outdigits = specs[nspecs_done].info.i18n;
1794 char pad = specs[nspecs_done].info.pad;
1795 CHAR_T spec = specs[nspecs_done].info.spec;
1796 CHAR_T *workstart = NULL;
1797
1798 /* Fill in last information. */
1799 if (specs[nspecs_done].width_arg != -1)
1800 {
1801 /* Extract the field width from an argument. */
1802 specs[nspecs_done].info.width =
1803 args_value[specs[nspecs_done].width_arg].pa_int;
1804
1805 if (specs[nspecs_done].info.width < 0)
1806 /* If the width value is negative left justification is
1807 selected and the value is taken as being positive. */
1808 {
1809 specs[nspecs_done].info.width *= -1;
1810 left = specs[nspecs_done].info.left = 1;
1811 }
1812 width = specs[nspecs_done].info.width;
1813 }
1814
1815 if (specs[nspecs_done].prec_arg != -1)
1816 {
1817 /* Extract the precision from an argument. */
1818 specs[nspecs_done].info.prec =
1819 args_value[specs[nspecs_done].prec_arg].pa_int;
1820
1821 if (specs[nspecs_done].info.prec < 0)
1822 /* If the precision is negative the precision is
1823 omitted. */
1824 specs[nspecs_done].info.prec = -1;
1825
1826 prec = specs[nspecs_done].info.prec;
1827 }
1828
1829 /* Maybe the buffer is too small. */
1830 if (MAX (prec, width) + 32 > (int) (sizeof (work_buffer)
1831 / sizeof (CHAR_T)))
1832 {
1833 if (__libc_use_alloca ((MAX (prec, width) + 32)
1834 * sizeof (CHAR_T)))
1835 workend = ((CHAR_T *) alloca ((MAX (prec, width) + 32)
1836 * sizeof (CHAR_T))
1837 + (MAX (prec, width) + 32));
1838 else
1839 {
1840 workstart = (CHAR_T *) malloc ((MAX (prec, width) + 32)
1841 * sizeof (CHAR_T));
1842 workend = workstart + (MAX (prec, width) + 32);
1843 }
1844 }
1845
1846 /* Process format specifiers. */
1847 while (1)
1848 {
1849 JUMP (spec, step4_jumps);
1850
1851 process_arg ((&specs[nspecs_done]));
1852 process_string_arg ((&specs[nspecs_done]));
1853
1854 LABEL (form_unknown):
1855 {
1856 extern printf_function **__printf_function_table;
1857 int function_done;
1858 printf_function *function;
1859 unsigned int i;
1860 const void **ptr;
1861
1862 function =
1863 (__printf_function_table == NULL ? NULL :
1864 __printf_function_table[specs[nspecs_done].info.spec]);
1865
1866 if (function == NULL)
1867 function = &printf_unknown;
1868
1869 ptr = alloca (specs[nspecs_done].ndata_args
1870 * sizeof (const void *));
1871
1872 /* Fill in an array of pointers to the argument values. */
1873 for (i = 0; i < specs[nspecs_done].ndata_args; ++i)
1874 ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
1875
1876 /* Call the function. */
1877 function_done = (*function) (s, &specs[nspecs_done].info, ptr);
1878
1879 /* If an error occurred we don't have information about #
1880 of chars. */
1881 if (function_done < 0)
1882 {
1883 done = -1;
1884 goto all_done;
1885 }
1886
1887 done += function_done;
1888 }
1889 break;
1890 }
1891
1892 if (__builtin_expect (workstart != NULL, 0))
1893 free (workstart);
1894 workstart = NULL;
1895
1896 /* Write the following constant string. */
1897 outstring (specs[nspecs_done].end_of_fmt,
1898 specs[nspecs_done].next_fmt
1899 - specs[nspecs_done].end_of_fmt);
1900 }
1901 }
1902
1903 all_done:
1904 if (__builtin_expect (workstart != NULL, 0))
1905 free (workstart);
1906 /* Unlock the stream. */
1907 _IO_funlockfile (s);
1908 _IO_cleanup_region_end (0);
1909
1910 return done;
1911 }
1912 \f
1913 /* Handle an unknown format specifier. This prints out a canonicalized
1914 representation of the format spec itself. */
1915 static int
1916 printf_unknown (FILE *s, const struct printf_info *info,
1917 const void *const *args)
1918
1919 {
1920 int done = 0;
1921 CHAR_T work_buffer[MAX (info->width, info->spec) + 32];
1922 CHAR_T *const workend
1923 = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
1924 register CHAR_T *w;
1925
1926 outchar (L_('%'));
1927
1928 if (info->alt)
1929 outchar (L_('#'));
1930 if (info->group)
1931 outchar (L_('\''));
1932 if (info->showsign)
1933 outchar (L_('+'));
1934 else if (info->space)
1935 outchar (L_(' '));
1936 if (info->left)
1937 outchar (L_('-'));
1938 if (info->pad == L_('0'))
1939 outchar (L_('0'));
1940 if (info->i18n)
1941 outchar (L_('I'));
1942
1943 if (info->width != 0)
1944 {
1945 w = _itoa_word (info->width, workend, 10, 0);
1946 while (w < workend)
1947 outchar (*w++);
1948 }
1949
1950 if (info->prec != -1)
1951 {
1952 outchar (L_('.'));
1953 w = _itoa_word (info->prec, workend, 10, 0);
1954 while (w < workend)
1955 outchar (*w++);
1956 }
1957
1958 if (info->spec != L_('\0'))
1959 outchar (info->spec);
1960
1961 all_done:
1962 return done;
1963 }
1964 \f
1965 /* Group the digits according to the grouping rules of the current locale.
1966 The interpretation of GROUPING is as in `struct lconv' from <locale.h>. */
1967 static CHAR_T *
1968 internal_function
1969 group_number (CHAR_T *w, CHAR_T *rear_ptr, const char *grouping,
1970 #ifdef COMPILE_WPRINTF
1971 wchar_t thousands_sep
1972 #else
1973 const char *thousands_sep
1974 #endif
1975 )
1976 {
1977 int len;
1978 CHAR_T *src, *s;
1979 #ifndef COMPILE_WPRINTF
1980 int tlen = strlen (thousands_sep);
1981 #endif
1982
1983 /* We treat all negative values like CHAR_MAX. */
1984
1985 if (*grouping == CHAR_MAX || *grouping <= 0)
1986 /* No grouping should be done. */
1987 return w;
1988
1989 len = *grouping++;
1990
1991 /* Copy existing string so that nothing gets overwritten. */
1992 src = (CHAR_T *) alloca ((rear_ptr - w) * sizeof (CHAR_T));
1993 s = (CHAR_T *) __mempcpy (src, w,
1994 (rear_ptr - w) * sizeof (CHAR_T));
1995 w = rear_ptr;
1996
1997 /* Process all characters in the string. */
1998 while (s > src)
1999 {
2000 *--w = *--s;
2001
2002 if (--len == 0 && s > src)
2003 {
2004 /* A new group begins. */
2005 #ifdef COMPILE_WPRINTF
2006 *--w = thousands_sep;
2007 #else
2008 int cnt = tlen;
2009 do
2010 *--w = thousands_sep[--cnt];
2011 while (cnt > 0);
2012 #endif
2013
2014 if (*grouping == CHAR_MAX
2015 #if CHAR_MIN < 0
2016 || *grouping < 0
2017 #endif
2018 )
2019 {
2020 /* No further grouping to be done.
2021 Copy the rest of the number. */
2022 do
2023 *--w = *--s;
2024 while (s > src);
2025 break;
2026 }
2027 else if (*grouping != '\0')
2028 /* The previous grouping repeats ad infinitum. */
2029 len = *grouping++;
2030 else
2031 len = grouping[-1];
2032 }
2033 }
2034 return w;
2035 }
2036 \f
2037 /* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
2038 struct helper_file
2039 {
2040 struct _IO_FILE_plus _f;
2041 #ifdef COMPILE_WPRINTF
2042 struct _IO_wide_data _wide_data;
2043 #endif
2044 _IO_FILE *_put_stream;
2045 #ifdef _IO_MTSAFE_IO
2046 _IO_lock_t lock;
2047 #endif
2048 };
2049
2050 static int
2051 _IO_helper_overflow (_IO_FILE *s, int c)
2052 {
2053 _IO_FILE *target = ((struct helper_file*) s)->_put_stream;
2054 #ifdef COMPILE_WPRINTF
2055 int used = s->_wide_data->_IO_write_ptr - s->_wide_data->_IO_write_base;
2056 if (used)
2057 {
2058 _IO_size_t written = _IO_sputn (target, s->_wide_data->_IO_write_base,
2059 used);
2060 s->_wide_data->_IO_write_ptr -= written;
2061 }
2062 #else
2063 int used = s->_IO_write_ptr - s->_IO_write_base;
2064 if (used)
2065 {
2066 _IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
2067 s->_IO_write_ptr -= written;
2068 }
2069 #endif
2070 return PUTC (c, s);
2071 }
2072
2073 #ifdef COMPILE_WPRINTF
2074 static const struct _IO_jump_t _IO_helper_jumps =
2075 {
2076 JUMP_INIT_DUMMY,
2077 JUMP_INIT (finish, INTUSE(_IO_wdefault_finish)),
2078 JUMP_INIT (overflow, _IO_helper_overflow),
2079 JUMP_INIT (underflow, _IO_default_underflow),
2080 JUMP_INIT (uflow, INTUSE(_IO_default_uflow)),
2081 JUMP_INIT (pbackfail, (_IO_pbackfail_t) INTUSE(_IO_wdefault_pbackfail)),
2082 JUMP_INIT (xsputn, INTUSE(_IO_wdefault_xsputn)),
2083 JUMP_INIT (xsgetn, INTUSE(_IO_wdefault_xsgetn)),
2084 JUMP_INIT (seekoff, _IO_default_seekoff),
2085 JUMP_INIT (seekpos, _IO_default_seekpos),
2086 JUMP_INIT (setbuf, _IO_default_setbuf),
2087 JUMP_INIT (sync, _IO_default_sync),
2088 JUMP_INIT (doallocate, INTUSE(_IO_wdefault_doallocate)),
2089 JUMP_INIT (read, _IO_default_read),
2090 JUMP_INIT (write, _IO_default_write),
2091 JUMP_INIT (seek, _IO_default_seek),
2092 JUMP_INIT (close, _IO_default_close),
2093 JUMP_INIT (stat, _IO_default_stat)
2094 };
2095 #else
2096 static const struct _IO_jump_t _IO_helper_jumps =
2097 {
2098 JUMP_INIT_DUMMY,
2099 JUMP_INIT (finish, INTUSE(_IO_default_finish)),
2100 JUMP_INIT (overflow, _IO_helper_overflow),
2101 JUMP_INIT (underflow, _IO_default_underflow),
2102 JUMP_INIT (uflow, INTUSE(_IO_default_uflow)),
2103 JUMP_INIT (pbackfail, INTUSE(_IO_default_pbackfail)),
2104 JUMP_INIT (xsputn, INTUSE(_IO_default_xsputn)),
2105 JUMP_INIT (xsgetn, INTUSE(_IO_default_xsgetn)),
2106 JUMP_INIT (seekoff, _IO_default_seekoff),
2107 JUMP_INIT (seekpos, _IO_default_seekpos),
2108 JUMP_INIT (setbuf, _IO_default_setbuf),
2109 JUMP_INIT (sync, _IO_default_sync),
2110 JUMP_INIT (doallocate, INTUSE(_IO_default_doallocate)),
2111 JUMP_INIT (read, _IO_default_read),
2112 JUMP_INIT (write, _IO_default_write),
2113 JUMP_INIT (seek, _IO_default_seek),
2114 JUMP_INIT (close, _IO_default_close),
2115 JUMP_INIT (stat, _IO_default_stat)
2116 };
2117 #endif
2118
2119 static int
2120 internal_function
2121 buffered_vfprintf (register _IO_FILE *s, const CHAR_T *format,
2122 _IO_va_list args)
2123 {
2124 CHAR_T buf[_IO_BUFSIZ];
2125 struct helper_file helper;
2126 register _IO_FILE *hp = (_IO_FILE *) &helper._f;
2127 int result, to_flush;
2128
2129 /* Orient the stream. */
2130 #ifdef ORIENT
2131 ORIENT;
2132 #endif
2133
2134 /* Initialize helper. */
2135 helper._put_stream = s;
2136 #ifdef COMPILE_WPRINTF
2137 hp->_wide_data = &helper._wide_data;
2138 _IO_wsetp (hp, buf, buf + sizeof buf / sizeof (CHAR_T));
2139 hp->_mode = 1;
2140 #else
2141 _IO_setp (hp, buf, buf + sizeof buf);
2142 hp->_mode = -1;
2143 #endif
2144 hp->_IO_file_flags = _IO_MAGIC|_IO_NO_READS|_IO_USER_LOCK;
2145 #if _IO_JUMPS_OFFSET
2146 hp->_vtable_offset = 0;
2147 #endif
2148 #ifdef _IO_MTSAFE_IO
2149 hp->_lock = NULL;
2150 #endif
2151 hp->_flags2 = s->_flags2;
2152 _IO_JUMPS (&helper._f) = (struct _IO_jump_t *) &_IO_helper_jumps;
2153
2154 /* Now print to helper instead. */
2155 #ifndef COMPILE_WPRINTF
2156 result = INTUSE(_IO_vfprintf) (hp, format, args);
2157 #else
2158 result = vfprintf (hp, format, args);
2159 #endif
2160
2161 /* Lock stream. */
2162 __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile, s);
2163 _IO_flockfile (s);
2164
2165 /* Now flush anything from the helper to the S. */
2166 #ifdef COMPILE_WPRINTF
2167 if ((to_flush = (hp->_wide_data->_IO_write_ptr
2168 - hp->_wide_data->_IO_write_base)) > 0)
2169 {
2170 if ((int) _IO_sputn (s, hp->_wide_data->_IO_write_base, to_flush)
2171 != to_flush)
2172 result = -1;
2173 }
2174 #else
2175 if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
2176 {
2177 if ((int) _IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
2178 result = -1;
2179 }
2180 #endif
2181
2182 /* Unlock the stream. */
2183 _IO_funlockfile (s);
2184 __libc_cleanup_region_end (0);
2185
2186 return result;
2187 }
2188
2189 #undef vfprintf
2190 #ifdef COMPILE_WPRINTF
2191 strong_alias (_IO_vfwprintf, __vfwprintf);
2192 ldbl_weak_alias (_IO_vfwprintf, vfwprintf);
2193 #else
2194 ldbl_strong_alias (_IO_vfprintf_internal, vfprintf);
2195 ldbl_hidden_def (_IO_vfprintf_internal, vfprintf)
2196 ldbl_strong_alias (_IO_vfprintf_internal, _IO_vfprintf);
2197 #endif
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