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Updated to fedora-glibc-20071010T2047
[glibc.git] / stdio-common / vfprintf.c
blobd1dc1aaf59c57e14a54ddd9fd2472db3caf38463
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 /* We have to save the original argument pointer. */
213 va_list ap_save;
214
215 /* Count number of specifiers we already processed. */
216 int nspecs_done;
217
218 /* For the %m format we may need the current `errno' value. */
219 int save_errno = errno;
220
221 /* 1 if format is in read-only memory, -1 if it is in writable memory,
222 0 if unknown. */
223 int readonly_format = 0;
224
225 /* This table maps a character into a number representing a
226 class. In each step there is a destination label for each
227 class. */
228 static const int jump_table[] =
229 {
230 /* ' ' */ 1, 0, 0, /* '#' */ 4,
231 0, /* '%' */ 14, 0, /* '\''*/ 6,
232 0, 0, /* '*' */ 7, /* '+' */ 2,
233 0, /* '-' */ 3, /* '.' */ 9, 0,
234 /* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
235 /* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
236 /* '8' */ 8, /* '9' */ 8, 0, 0,
237 0, 0, 0, 0,
238 0, /* 'A' */ 26, 0, /* 'C' */ 25,
239 0, /* 'E' */ 19, /* F */ 19, /* 'G' */ 19,
240 0, /* 'I' */ 29, 0, 0,
241 /* 'L' */ 12, 0, 0, 0,
242 0, 0, 0, /* 'S' */ 21,
243 0, 0, 0, 0,
244 /* 'X' */ 18, 0, /* 'Z' */ 13, 0,
245 0, 0, 0, 0,
246 0, /* 'a' */ 26, 0, /* 'c' */ 20,
247 /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
248 /* 'h' */ 10, /* 'i' */ 15, /* 'j' */ 28, 0,
249 /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
250 /* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
251 /* 't' */ 27, /* 'u' */ 16, 0, 0,
252 /* 'x' */ 18, 0, /* 'z' */ 13
253 };
254
255 #define NOT_IN_JUMP_RANGE(Ch) ((Ch) < L_(' ') || (Ch) > L_('z'))
256 #define CHAR_CLASS(Ch) (jump_table[(INT_T) (Ch) - L_(' ')])
257 #ifdef SHARED
258 /* 'int' is enough and it saves some space on 64 bit systems. */
259 # define JUMP_TABLE_TYPE const int
260 # define JUMP(ChExpr, table) \
261 do \
262 { \
263 int offset; \
264 void *__unbounded ptr; \
265 spec = (ChExpr); \
266 offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
267 : table[CHAR_CLASS (spec)]; \
268 ptr = &&do_form_unknown + offset; \
269 goto *ptr; \
270 } \
271 while (0)
272 #else
273 # define JUMP_TABLE_TYPE const void *const
274 # define JUMP(ChExpr, table) \
275 do \
276 { \
277 const void *__unbounded ptr; \
278 spec = (ChExpr); \
279 ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
280 : table[CHAR_CLASS (spec)]; \
281 goto *ptr; \
282 } \
283 while (0)
284 #endif
285
286 #define STEP0_3_TABLE \
287 /* Step 0: at the beginning. */ \
288 static JUMP_TABLE_TYPE step0_jumps[30] = \
289 { \
290 REF (form_unknown), \
291 REF (flag_space), /* for ' ' */ \
292 REF (flag_plus), /* for '+' */ \
293 REF (flag_minus), /* for '-' */ \
294 REF (flag_hash), /* for '<hash>' */ \
295 REF (flag_zero), /* for '0' */ \
296 REF (flag_quote), /* for '\'' */ \
297 REF (width_asterics), /* for '*' */ \
298 REF (width), /* for '1'...'9' */ \
299 REF (precision), /* for '.' */ \
300 REF (mod_half), /* for 'h' */ \
301 REF (mod_long), /* for 'l' */ \
302 REF (mod_longlong), /* for 'L', 'q' */ \
303 REF (mod_size_t), /* for 'z', 'Z' */ \
304 REF (form_percent), /* for '%' */ \
305 REF (form_integer), /* for 'd', 'i' */ \
306 REF (form_unsigned), /* for 'u' */ \
307 REF (form_octal), /* for 'o' */ \
308 REF (form_hexa), /* for 'X', 'x' */ \
309 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
310 REF (form_character), /* for 'c' */ \
311 REF (form_string), /* for 's', 'S' */ \
312 REF (form_pointer), /* for 'p' */ \
313 REF (form_number), /* for 'n' */ \
314 REF (form_strerror), /* for 'm' */ \
315 REF (form_wcharacter), /* for 'C' */ \
316 REF (form_floathex), /* for 'A', 'a' */ \
317 REF (mod_ptrdiff_t), /* for 't' */ \
318 REF (mod_intmax_t), /* for 'j' */ \
319 REF (flag_i18n), /* for 'I' */ \
320 }; \
321 /* Step 1: after processing width. */ \
322 static JUMP_TABLE_TYPE step1_jumps[30] = \
323 { \
324 REF (form_unknown), \
325 REF (form_unknown), /* for ' ' */ \
326 REF (form_unknown), /* for '+' */ \
327 REF (form_unknown), /* for '-' */ \
328 REF (form_unknown), /* for '<hash>' */ \
329 REF (form_unknown), /* for '0' */ \
330 REF (form_unknown), /* for '\'' */ \
331 REF (form_unknown), /* for '*' */ \
332 REF (form_unknown), /* for '1'...'9' */ \
333 REF (precision), /* for '.' */ \
334 REF (mod_half), /* for 'h' */ \
335 REF (mod_long), /* for 'l' */ \
336 REF (mod_longlong), /* for 'L', 'q' */ \
337 REF (mod_size_t), /* for 'z', 'Z' */ \
338 REF (form_percent), /* for '%' */ \
339 REF (form_integer), /* for 'd', 'i' */ \
340 REF (form_unsigned), /* for 'u' */ \
341 REF (form_octal), /* for 'o' */ \
342 REF (form_hexa), /* for 'X', 'x' */ \
343 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
344 REF (form_character), /* for 'c' */ \
345 REF (form_string), /* for 's', 'S' */ \
346 REF (form_pointer), /* for 'p' */ \
347 REF (form_number), /* for 'n' */ \
348 REF (form_strerror), /* for 'm' */ \
349 REF (form_wcharacter), /* for 'C' */ \
350 REF (form_floathex), /* for 'A', 'a' */ \
351 REF (mod_ptrdiff_t), /* for 't' */ \
352 REF (mod_intmax_t), /* for 'j' */ \
353 REF (form_unknown) /* for 'I' */ \
354 }; \
355 /* Step 2: after processing precision. */ \
356 static JUMP_TABLE_TYPE step2_jumps[30] = \
357 { \
358 REF (form_unknown), \
359 REF (form_unknown), /* for ' ' */ \
360 REF (form_unknown), /* for '+' */ \
361 REF (form_unknown), /* for '-' */ \
362 REF (form_unknown), /* for '<hash>' */ \
363 REF (form_unknown), /* for '0' */ \
364 REF (form_unknown), /* for '\'' */ \
365 REF (form_unknown), /* for '*' */ \
366 REF (form_unknown), /* for '1'...'9' */ \
367 REF (form_unknown), /* for '.' */ \
368 REF (mod_half), /* for 'h' */ \
369 REF (mod_long), /* for 'l' */ \
370 REF (mod_longlong), /* for 'L', 'q' */ \
371 REF (mod_size_t), /* for 'z', 'Z' */ \
372 REF (form_percent), /* for '%' */ \
373 REF (form_integer), /* for 'd', 'i' */ \
374 REF (form_unsigned), /* for 'u' */ \
375 REF (form_octal), /* for 'o' */ \
376 REF (form_hexa), /* for 'X', 'x' */ \
377 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
378 REF (form_character), /* for 'c' */ \
379 REF (form_string), /* for 's', 'S' */ \
380 REF (form_pointer), /* for 'p' */ \
381 REF (form_number), /* for 'n' */ \
382 REF (form_strerror), /* for 'm' */ \
383 REF (form_wcharacter), /* for 'C' */ \
384 REF (form_floathex), /* for 'A', 'a' */ \
385 REF (mod_ptrdiff_t), /* for 't' */ \
386 REF (mod_intmax_t), /* for 'j' */ \
387 REF (form_unknown) /* for 'I' */ \
388 }; \
389 /* Step 3a: after processing first 'h' modifier. */ \
390 static JUMP_TABLE_TYPE step3a_jumps[30] = \
391 { \
392 REF (form_unknown), \
393 REF (form_unknown), /* for ' ' */ \
394 REF (form_unknown), /* for '+' */ \
395 REF (form_unknown), /* for '-' */ \
396 REF (form_unknown), /* for '<hash>' */ \
397 REF (form_unknown), /* for '0' */ \
398 REF (form_unknown), /* for '\'' */ \
399 REF (form_unknown), /* for '*' */ \
400 REF (form_unknown), /* for '1'...'9' */ \
401 REF (form_unknown), /* for '.' */ \
402 REF (mod_halfhalf), /* for 'h' */ \
403 REF (form_unknown), /* for 'l' */ \
404 REF (form_unknown), /* for 'L', 'q' */ \
405 REF (form_unknown), /* for 'z', 'Z' */ \
406 REF (form_percent), /* for '%' */ \
407 REF (form_integer), /* for 'd', 'i' */ \
408 REF (form_unsigned), /* for 'u' */ \
409 REF (form_octal), /* for 'o' */ \
410 REF (form_hexa), /* for 'X', 'x' */ \
411 REF (form_unknown), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
412 REF (form_unknown), /* for 'c' */ \
413 REF (form_unknown), /* for 's', 'S' */ \
414 REF (form_unknown), /* for 'p' */ \
415 REF (form_number), /* for 'n' */ \
416 REF (form_unknown), /* for 'm' */ \
417 REF (form_unknown), /* for 'C' */ \
418 REF (form_unknown), /* for 'A', 'a' */ \
419 REF (form_unknown), /* for 't' */ \
420 REF (form_unknown), /* for 'j' */ \
421 REF (form_unknown) /* for 'I' */ \
422 }; \
423 /* Step 3b: after processing first 'l' modifier. */ \
424 static JUMP_TABLE_TYPE step3b_jumps[30] = \
425 { \
426 REF (form_unknown), \
427 REF (form_unknown), /* for ' ' */ \
428 REF (form_unknown), /* for '+' */ \
429 REF (form_unknown), /* for '-' */ \
430 REF (form_unknown), /* for '<hash>' */ \
431 REF (form_unknown), /* for '0' */ \
432 REF (form_unknown), /* for '\'' */ \
433 REF (form_unknown), /* for '*' */ \
434 REF (form_unknown), /* for '1'...'9' */ \
435 REF (form_unknown), /* for '.' */ \
436 REF (form_unknown), /* for 'h' */ \
437 REF (mod_longlong), /* for 'l' */ \
438 REF (form_unknown), /* for 'L', 'q' */ \
439 REF (form_unknown), /* for 'z', 'Z' */ \
440 REF (form_percent), /* for '%' */ \
441 REF (form_integer), /* for 'd', 'i' */ \
442 REF (form_unsigned), /* for 'u' */ \
443 REF (form_octal), /* for 'o' */ \
444 REF (form_hexa), /* for 'X', 'x' */ \
445 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
446 REF (form_character), /* for 'c' */ \
447 REF (form_string), /* for 's', 'S' */ \
448 REF (form_pointer), /* for 'p' */ \
449 REF (form_number), /* for 'n' */ \
450 REF (form_strerror), /* for 'm' */ \
451 REF (form_wcharacter), /* for 'C' */ \
452 REF (form_floathex), /* for 'A', 'a' */ \
453 REF (form_unknown), /* for 't' */ \
454 REF (form_unknown), /* for 'j' */ \
455 REF (form_unknown) /* for 'I' */ \
456 }
457
458 #define STEP4_TABLE \
459 /* Step 4: processing format specifier. */ \
460 static JUMP_TABLE_TYPE step4_jumps[30] = \
461 { \
462 REF (form_unknown), \
463 REF (form_unknown), /* for ' ' */ \
464 REF (form_unknown), /* for '+' */ \
465 REF (form_unknown), /* for '-' */ \
466 REF (form_unknown), /* for '<hash>' */ \
467 REF (form_unknown), /* for '0' */ \
468 REF (form_unknown), /* for '\'' */ \
469 REF (form_unknown), /* for '*' */ \
470 REF (form_unknown), /* for '1'...'9' */ \
471 REF (form_unknown), /* for '.' */ \
472 REF (form_unknown), /* for 'h' */ \
473 REF (form_unknown), /* for 'l' */ \
474 REF (form_unknown), /* for 'L', 'q' */ \
475 REF (form_unknown), /* for 'z', 'Z' */ \
476 REF (form_percent), /* for '%' */ \
477 REF (form_integer), /* for 'd', 'i' */ \
478 REF (form_unsigned), /* for 'u' */ \
479 REF (form_octal), /* for 'o' */ \
480 REF (form_hexa), /* for 'X', 'x' */ \
481 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
482 REF (form_character), /* for 'c' */ \
483 REF (form_string), /* for 's', 'S' */ \
484 REF (form_pointer), /* for 'p' */ \
485 REF (form_number), /* for 'n' */ \
486 REF (form_strerror), /* for 'm' */ \
487 REF (form_wcharacter), /* for 'C' */ \
488 REF (form_floathex), /* for 'A', 'a' */ \
489 REF (form_unknown), /* for 't' */ \
490 REF (form_unknown), /* for 'j' */ \
491 REF (form_unknown) /* for 'I' */ \
492 }
493
494
495 #define process_arg(fspec) \
496 /* Start real work. We know about all flags and modifiers and \
497 now process the wanted format specifier. */ \
498 LABEL (form_percent): \
499 /* Write a literal "%". */ \
500 outchar (L_('%')); \
501 break; \
502 \
503 LABEL (form_integer): \
504 /* Signed decimal integer. */ \
505 base = 10; \
506 \
507 if (is_longlong) \
508 { \
509 long long int signed_number; \
510 \
511 if (fspec == NULL) \
512 signed_number = va_arg (ap, long long int); \
513 else \
514 signed_number = args_value[fspec->data_arg].pa_long_long_int; \
515 \
516 is_negative = signed_number < 0; \
517 number.longlong = is_negative ? (- signed_number) : signed_number; \
518 \
519 goto LABEL (longlong_number); \
520 } \
521 else \
522 { \
523 long int signed_number; \
524 \
525 if (fspec == NULL) \
526 { \
527 if (is_long_num) \
528 signed_number = va_arg (ap, long int); \
529 else if (is_char) \
530 signed_number = (signed char) va_arg (ap, unsigned int); \
531 else if (!is_short) \
532 signed_number = va_arg (ap, int); \
533 else \
534 signed_number = (short int) va_arg (ap, unsigned int); \
535 } \
536 else \
537 if (is_long_num) \
538 signed_number = args_value[fspec->data_arg].pa_long_int; \
539 else if (is_char) \
540 signed_number = (signed char) \
541 args_value[fspec->data_arg].pa_u_int; \
542 else if (!is_short) \
543 signed_number = args_value[fspec->data_arg].pa_int; \
544 else \
545 signed_number = (short int) \
546 args_value[fspec->data_arg].pa_u_int; \
547 \
548 is_negative = signed_number < 0; \
549 number.word = is_negative ? (- signed_number) : signed_number; \
550 \
551 goto LABEL (number); \
552 } \
553 /* NOTREACHED */ \
554 \
555 LABEL (form_unsigned): \
556 /* Unsigned decimal integer. */ \
557 base = 10; \
558 goto LABEL (unsigned_number); \
559 /* NOTREACHED */ \
560 \
561 LABEL (form_octal): \
562 /* Unsigned octal integer. */ \
563 base = 8; \
564 goto LABEL (unsigned_number); \
565 /* NOTREACHED */ \
566 \
567 LABEL (form_hexa): \
568 /* Unsigned hexadecimal integer. */ \
569 base = 16; \
570 \
571 LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
572 \
573 /* ISO specifies the `+' and ` ' flags only for signed \
574 conversions. */ \
575 is_negative = 0; \
576 showsign = 0; \
577 space = 0; \
578 \
579 if (is_longlong) \
580 { \
581 if (fspec == NULL) \
582 number.longlong = va_arg (ap, unsigned long long int); \
583 else \
584 number.longlong = args_value[fspec->data_arg].pa_u_long_long_int; \
585 \
586 LABEL (longlong_number): \
587 if (prec < 0) \
588 /* Supply a default precision if none was given. */ \
589 prec = 1; \
590 else \
591 /* We have to take care for the '0' flag. If a precision \
592 is given it must be ignored. */ \
593 pad = L_(' '); \
594 \
595 /* If the precision is 0 and the number is 0 nothing has to \
596 be written for the number, except for the 'o' format in \
597 alternate form. */ \
598 if (prec == 0 && number.longlong == 0) \
599 { \
600 string = workend; \
601 if (base == 8 && alt) \
602 *--string = L_('0'); \
603 } \
604 else \
605 { \
606 /* Put the number in WORK. */ \
607 string = _itoa (number.longlong, workend, base, \
608 spec == L_('X')); \
609 if (group && grouping) \
610 string = group_number (string, workend, grouping, \
611 thousands_sep); \
612 \
613 if (use_outdigits && base == 10) \
614 string = _i18n_number_rewrite (string, workend); \
615 } \
616 /* Simplify further test for num != 0. */ \
617 number.word = number.longlong != 0; \
618 } \
619 else \
620 { \
621 if (fspec == NULL) \
622 { \
623 if (is_long_num) \
624 number.word = va_arg (ap, unsigned long int); \
625 else if (is_char) \
626 number.word = (unsigned char) va_arg (ap, unsigned int); \
627 else if (!is_short) \
628 number.word = va_arg (ap, unsigned int); \
629 else \
630 number.word = (unsigned short int) va_arg (ap, unsigned int); \
631 } \
632 else \
633 if (is_long_num) \
634 number.word = args_value[fspec->data_arg].pa_u_long_int; \
635 else if (is_char) \
636 number.word = (unsigned char) \
637 args_value[fspec->data_arg].pa_u_int; \
638 else if (!is_short) \
639 number.word = args_value[fspec->data_arg].pa_u_int; \
640 else \
641 number.word = (unsigned short int) \
642 args_value[fspec->data_arg].pa_u_int; \
643 \
644 LABEL (number): \
645 if (prec < 0) \
646 /* Supply a default precision if none was given. */ \
647 prec = 1; \
648 else \
649 /* We have to take care for the '0' flag. If a precision \
650 is given it must be ignored. */ \
651 pad = L_(' '); \
652 \
653 /* If the precision is 0 and the number is 0 nothing has to \
654 be written for the number, except for the 'o' format in \
655 alternate form. */ \
656 if (prec == 0 && number.word == 0) \
657 { \
658 string = workend; \
659 if (base == 8 && alt) \
660 *--string = L_('0'); \
661 } \
662 else \
663 { \
664 /* Put the number in WORK. */ \
665 string = _itoa_word (number.word, workend, base, \
666 spec == L_('X')); \
667 if (group && grouping) \
668 string = group_number (string, workend, grouping, \
669 thousands_sep); \
670 \
671 if (use_outdigits && base == 10) \
672 string = _i18n_number_rewrite (string, workend); \
673 } \
674 } \
675 \
676 if (prec <= workend - string && number.word != 0 && alt && base == 8) \
677 /* Add octal marker. */ \
678 *--string = L_('0'); \
679 \
680 prec = MAX (0, prec - (workend - string)); \
681 \
682 if (!left) \
683 { \
684 width -= workend - string + prec; \
685 \
686 if (number.word != 0 && alt && base == 16) \
687 /* Account for 0X hex marker. */ \
688 width -= 2; \
689 \
690 if (is_negative || showsign || space) \
691 --width; \
692 \
693 if (pad == L_(' ')) \
694 { \
695 PAD (L_(' ')); \
696 width = 0; \
697 } \
698 \
699 if (is_negative) \
700 outchar (L_('-')); \
701 else if (showsign) \
702 outchar (L_('+')); \
703 else if (space) \
704 outchar (L_(' ')); \
705 \
706 if (number.word != 0 && alt && base == 16) \
707 { \
708 outchar (L_('0')); \
709 outchar (spec); \
710 } \
711 \
712 width += prec; \
713 PAD (L_('0')); \
714 \
715 outstring (string, workend - string); \
716 \
717 break; \
718 } \
719 else \
720 { \
721 if (is_negative) \
722 { \
723 outchar (L_('-')); \
724 --width; \
725 } \
726 else if (showsign) \
727 { \
728 outchar (L_('+')); \
729 --width; \
730 } \
731 else if (space) \
732 { \
733 outchar (L_(' ')); \
734 --width; \
735 } \
736 \
737 if (number.word != 0 && alt && base == 16) \
738 { \
739 outchar (L_('0')); \
740 outchar (spec); \
741 width -= 2; \
742 } \
743 \
744 width -= workend - string + prec; \
745 \
746 if (prec > 0) \
747 { \
748 int temp = width; \
749 width = prec; \
750 PAD (L_('0'));; \
751 width = temp; \
752 } \
753 \
754 outstring (string, workend - string); \
755 \
756 PAD (L_(' ')); \
757 break; \
758 } \
759 \
760 LABEL (form_float): \
761 { \
762 /* Floating-point number. This is handled by printf_fp.c. */ \
763 const void *ptr; \
764 int function_done; \
765 \
766 if (fspec == NULL) \
767 { \
768 if (__ldbl_is_dbl) \
769 is_long_double = 0; \
770 \
771 struct printf_info info = { .prec = prec, \
772 .width = width, \
773 .spec = spec, \
774 .is_long_double = is_long_double, \
775 .is_short = is_short, \
776 .is_long = is_long, \
777 .alt = alt, \
778 .space = space, \
779 .left = left, \
780 .showsign = showsign, \
781 .group = group, \
782 .pad = pad, \
783 .extra = 0, \
784 .i18n = use_outdigits, \
785 .wide = sizeof (CHAR_T) != 1 }; \
786 \
787 if (is_long_double) \
788 the_arg.pa_long_double = va_arg (ap, long double); \
789 else \
790 the_arg.pa_double = va_arg (ap, double); \
791 ptr = (const void *) &the_arg; \
792 \
793 function_done = __printf_fp (s, &info, &ptr); \
794 } \
795 else \
796 { \
797 ptr = (const void *) &args_value[fspec->data_arg]; \
798 if (__ldbl_is_dbl) \
799 { \
800 fspec->data_arg_type = PA_DOUBLE; \
801 fspec->info.is_long_double = 0; \
802 } \
803 \
804 function_done = __printf_fp (s, &fspec->info, &ptr); \
805 } \
806 \
807 if (function_done < 0) \
808 { \
809 /* Error in print handler. */ \
810 done = -1; \
811 goto all_done; \
812 } \
813 \
814 done += function_done; \
815 } \
816 break; \
817 \
818 LABEL (form_floathex): \
819 { \
820 /* Floating point number printed as hexadecimal number. */ \
821 const void *ptr; \
822 int function_done; \
823 \
824 if (fspec == NULL) \
825 { \
826 if (__ldbl_is_dbl) \
827 is_long_double = 0; \
828 \
829 struct printf_info info = { .prec = prec, \
830 .width = width, \
831 .spec = spec, \
832 .is_long_double = is_long_double, \
833 .is_short = is_short, \
834 .is_long = is_long, \
835 .alt = alt, \
836 .space = space, \
837 .left = left, \
838 .showsign = showsign, \
839 .group = group, \
840 .pad = pad, \
841 .extra = 0, \
842 .wide = sizeof (CHAR_T) != 1 }; \
843 \
844 if (is_long_double) \
845 the_arg.pa_long_double = va_arg (ap, long double); \
846 else \
847 the_arg.pa_double = va_arg (ap, double); \
848 ptr = (const void *) &the_arg; \
849 \
850 function_done = __printf_fphex (s, &info, &ptr); \
851 } \
852 else \
853 { \
854 ptr = (const void *) &args_value[fspec->data_arg]; \
855 if (__ldbl_is_dbl) \
856 fspec->info.is_long_double = 0; \
857 \
858 function_done = __printf_fphex (s, &fspec->info, &ptr); \
859 } \
860 \
861 if (function_done < 0) \
862 { \
863 /* Error in print handler. */ \
864 done = -1; \
865 goto all_done; \
866 } \
867 \
868 done += function_done; \
869 } \
870 break; \
871 \
872 LABEL (form_pointer): \
873 /* Generic pointer. */ \
874 { \
875 const void *ptr; \
876 if (fspec == NULL) \
877 ptr = va_arg (ap, void *); \
878 else \
879 ptr = args_value[fspec->data_arg].pa_pointer; \
880 if (ptr != NULL) \
881 { \
882 /* If the pointer is not NULL, write it as a %#x spec. */ \
883 base = 16; \
884 number.word = (unsigned long int) ptr; \
885 is_negative = 0; \
886 alt = 1; \
887 group = 0; \
888 spec = L_('x'); \
889 goto LABEL (number); \
890 } \
891 else \
892 { \
893 /* Write "(nil)" for a nil pointer. */ \
894 string = (CHAR_T *) L_("(nil)"); \
895 /* Make sure the full string "(nil)" is printed. */ \
896 if (prec < 5) \
897 prec = 5; \
898 is_long = 0; /* This is no wide-char string. */ \
899 goto LABEL (print_string); \
900 } \
901 } \
902 /* NOTREACHED */ \
903 \
904 LABEL (form_number): \
905 if (s->_flags2 & _IO_FLAGS2_FORTIFY) \
906 { \
907 if (! readonly_format) \
908 { \
909 extern int __readonly_area (const void *, size_t) \
910 attribute_hidden; \
911 readonly_format \
912 = __readonly_area (format, ((STR_LEN (format) + 1) \
913 * sizeof (CHAR_T))); \
914 } \
915 if (readonly_format < 0) \
916 __libc_fatal ("*** %n in writable segment detected ***\n"); \
917 } \
918 /* Answer the count of characters written. */ \
919 if (fspec == NULL) \
920 { \
921 if (is_longlong) \
922 *(long long int *) va_arg (ap, void *) = done; \
923 else if (is_long_num) \
924 *(long int *) va_arg (ap, void *) = done; \
925 else if (is_char) \
926 *(char *) va_arg (ap, void *) = done; \
927 else if (!is_short) \
928 *(int *) va_arg (ap, void *) = done; \
929 else \
930 *(short int *) va_arg (ap, void *) = done; \
931 } \
932 else \
933 if (is_longlong) \
934 *(long long int *) args_value[fspec->data_arg].pa_pointer = done; \
935 else if (is_long_num) \
936 *(long int *) args_value[fspec->data_arg].pa_pointer = done; \
937 else if (is_char) \
938 *(char *) args_value[fspec->data_arg].pa_pointer = done; \
939 else if (!is_short) \
940 *(int *) args_value[fspec->data_arg].pa_pointer = done; \
941 else \
942 *(short int *) args_value[fspec->data_arg].pa_pointer = done; \
943 break; \
944 \
945 LABEL (form_strerror): \
946 /* Print description of error ERRNO. */ \
947 string = \
948 (CHAR_T *) __strerror_r (save_errno, (char *) work_buffer, \
949 sizeof work_buffer); \
950 is_long = 0; /* This is no wide-char string. */ \
951 goto LABEL (print_string)
952
953 #ifdef COMPILE_WPRINTF
954 # define process_string_arg(fspec) \
955 LABEL (form_character): \
956 /* Character. */ \
957 if (is_long) \
958 goto LABEL (form_wcharacter); \
959 --width; /* Account for the character itself. */ \
960 if (!left) \
961 PAD (L' '); \
962 if (fspec == NULL) \
963 outchar (__btowc ((unsigned char) va_arg (ap, int))); /* Promoted. */ \
964 else \
965 outchar (__btowc ((unsigned char) \
966 args_value[fspec->data_arg].pa_int)); \
967 if (left) \
968 PAD (L' '); \
969 break; \
970 \
971 LABEL (form_wcharacter): \
972 { \
973 /* Wide character. */ \
974 --width; \
975 if (!left) \
976 PAD (L' '); \
977 if (fspec == NULL) \
978 outchar (va_arg (ap, wchar_t)); \
979 else \
980 outchar (args_value[fspec->data_arg].pa_wchar); \
981 if (left) \
982 PAD (L' '); \
983 } \
984 break; \
985 \
986 LABEL (form_string): \
987 { \
988 size_t len; \
989 int string_malloced; \
990 \
991 /* The string argument could in fact be `char *' or `wchar_t *'. \
992 But this should not make a difference here. */ \
993 if (fspec == NULL) \
994 string = (CHAR_T *) va_arg (ap, const wchar_t *); \
995 else \
996 string = (CHAR_T *) args_value[fspec->data_arg].pa_wstring; \
997 \
998 /* Entry point for printing other strings. */ \
999 LABEL (print_string): \
1000 \
1001 string_malloced = 0; \
1002 if (string == NULL) \
1003 { \
1004 /* Write "(null)" if there's space. */ \
1005 if (prec == -1 \
1006 || prec >= (int) (sizeof (null) / sizeof (null[0])) - 1) \
1007 { \
1008 string = (CHAR_T *) null; \
1009 len = (sizeof (null) / sizeof (null[0])) - 1; \
1010 } \
1011 else \
1012 { \
1013 string = (CHAR_T *) L""; \
1014 len = 0; \
1015 } \
1016 } \
1017 else if (!is_long && spec != L_('S')) \
1018 { \
1019 /* This is complicated. We have to transform the multibyte \
1020 string into a wide character string. */ \
1021 const char *mbs = (const char *) string; \
1022 mbstate_t mbstate; \
1023 \
1024 len = prec != -1 ? __strnlen (mbs, (size_t) prec) : strlen (mbs); \
1025 \
1026 /* Allocate dynamically an array which definitely is long \
1027 enough for the wide character version. Each byte in the \
1028 multi-byte string can produce at most one wide character. */ \
1029 if (__libc_use_alloca (len * sizeof (wchar_t))) \
1030 string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \
1031 else if ((string = (CHAR_T *) malloc (len * sizeof (wchar_t))) \
1032 == NULL) \
1033 { \
1034 done = -1; \
1035 goto all_done; \
1036 } \
1037 else \
1038 string_malloced = 1; \
1039 \
1040 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1041 len = __mbsrtowcs (string, &mbs, len, &mbstate); \
1042 if (len == (size_t) -1) \
1043 { \
1044 /* Illegal multibyte character. */ \
1045 done = -1; \
1046 goto all_done; \
1047 } \
1048 } \
1049 else \
1050 { \
1051 if (prec != -1) \
1052 /* Search for the end of the string, but don't search past \
1053 the length specified by the precision. */ \
1054 len = __wcsnlen (string, prec); \
1055 else \
1056 len = __wcslen (string); \
1057 } \
1058 \
1059 if ((width -= len) < 0) \
1060 { \
1061 outstring (string, len); \
1062 break; \
1063 } \
1064 \
1065 if (!left) \
1066 PAD (L' '); \
1067 outstring (string, len); \
1068 if (left) \
1069 PAD (L' '); \
1070 if (__builtin_expect (string_malloced, 0)) \
1071 free (string); \
1072 } \
1073 break;
1074 #else
1075 # define process_string_arg(fspec) \
1076 LABEL (form_character): \
1077 /* Character. */ \
1078 if (is_long) \
1079 goto LABEL (form_wcharacter); \
1080 --width; /* Account for the character itself. */ \
1081 if (!left) \
1082 PAD (' '); \
1083 if (fspec == NULL) \
1084 outchar ((unsigned char) va_arg (ap, int)); /* Promoted. */ \
1085 else \
1086 outchar ((unsigned char) args_value[fspec->data_arg].pa_int); \
1087 if (left) \
1088 PAD (' '); \
1089 break; \
1090 \
1091 LABEL (form_wcharacter): \
1092 { \
1093 /* Wide character. */ \
1094 char buf[MB_CUR_MAX]; \
1095 mbstate_t mbstate; \
1096 size_t len; \
1097 \
1098 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1099 len = __wcrtomb (buf, (fspec == NULL ? va_arg (ap, wchar_t) \
1100 : args_value[fspec->data_arg].pa_wchar), \
1101 &mbstate); \
1102 if (len == (size_t) -1) \
1103 { \
1104 /* Something went wron gduring the conversion. Bail out. */ \
1105 done = -1; \
1106 goto all_done; \
1107 } \
1108 width -= len; \
1109 if (!left) \
1110 PAD (' '); \
1111 outstring (buf, len); \
1112 if (left) \
1113 PAD (' '); \
1114 } \
1115 break; \
1116 \
1117 LABEL (form_string): \
1118 { \
1119 size_t len; \
1120 int string_malloced; \
1121 \
1122 /* The string argument could in fact be `char *' or `wchar_t *'. \
1123 But this should not make a difference here. */ \
1124 if (fspec == NULL) \
1125 string = (char *) va_arg (ap, const char *); \
1126 else \
1127 string = (char *) args_value[fspec->data_arg].pa_string; \
1128 \
1129 /* Entry point for printing other strings. */ \
1130 LABEL (print_string): \
1131 \
1132 string_malloced = 0; \
1133 if (string == NULL) \
1134 { \
1135 /* Write "(null)" if there's space. */ \
1136 if (prec == -1 || prec >= (int) sizeof (null) - 1) \
1137 { \
1138 string = (char *) null; \
1139 len = sizeof (null) - 1; \
1140 } \
1141 else \
1142 { \
1143 string = (char *) ""; \
1144 len = 0; \
1145 } \
1146 } \
1147 else if (!is_long && spec != L_('S')) \
1148 { \
1149 if (prec != -1) \
1150 { \
1151 /* Search for the end of the string, but don't search past \
1152 the length (in bytes) specified by the precision. Also \
1153 don't use incomplete characters. */ \
1154 if (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MB_CUR_MAX) == 1) \
1155 len = __strnlen (string, prec); \
1156 else \
1157 { \
1158 /* In case we have a multibyte character set the \
1159 situation is more complicated. We must not copy \
1160 bytes at the end which form an incomplete character. */\
1161 size_t ignore_size = (unsigned) prec > 1024 ? 1024 : prec;\
1162 wchar_t ignore[ignore_size]; \
1163 const char *str2 = string; \
1164 const char *strend = string + prec; \
1165 if (strend < string) \
1166 strend = (const char *) UINTPTR_MAX; \
1167 \
1168 mbstate_t ps; \
1169 memset (&ps, '\0', sizeof (ps)); \
1170 \
1171 while (str2 != NULL && str2 < strend) \
1172 if (__mbsnrtowcs (ignore, &str2, strend - str2, \
1173 ignore_size, &ps) == (size_t) -1) \
1174 { \
1175 done = -1; \
1176 goto all_done; \
1177 } \
1178 \
1179 if (str2 == NULL) \
1180 len = strlen (string); \
1181 else \
1182 len = str2 - string - (ps.__count & 7); \
1183 } \
1184 } \
1185 else \
1186 len = strlen (string); \
1187 } \
1188 else \
1189 { \
1190 const wchar_t *s2 = (const wchar_t *) string; \
1191 mbstate_t mbstate; \
1192 \
1193 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1194 \
1195 if (prec >= 0) \
1196 { \
1197 /* The string `s2' might not be NUL terminated. */ \
1198 if (__libc_use_alloca (prec)) \
1199 string = (char *) alloca (prec); \
1200 else if ((string = (char *) malloc (prec)) == NULL) \
1201 { \
1202 done = -1; \
1203 goto all_done; \
1204 } \
1205 else \
1206 string_malloced = 1; \
1207 len = __wcsrtombs (string, &s2, prec, &mbstate); \
1208 } \
1209 else \
1210 { \
1211 len = __wcsrtombs (NULL, &s2, 0, &mbstate); \
1212 if (len != (size_t) -1) \
1213 { \
1214 assert (__mbsinit (&mbstate)); \
1215 s2 = (const wchar_t *) string; \
1216 if (__libc_use_alloca (len + 1)) \
1217 string = (char *) alloca (len + 1); \
1218 else if ((string = (char *) malloc (len + 1)) == NULL) \
1219 { \
1220 done = -1; \
1221 goto all_done; \
1222 } \
1223 else \
1224 string_malloced = 1; \
1225 (void) __wcsrtombs (string, &s2, len + 1, &mbstate); \
1226 } \
1227 } \
1228 \
1229 if (len == (size_t) -1) \
1230 { \
1231 /* Illegal wide-character string. */ \
1232 done = -1; \
1233 goto all_done; \
1234 } \
1235 } \
1236 \
1237 if ((width -= len) < 0) \
1238 { \
1239 outstring (string, len); \
1240 break; \
1241 } \
1242 \
1243 if (!left) \
1244 PAD (' '); \
1245 outstring (string, len); \
1246 if (left) \
1247 PAD (' '); \
1248 if (__builtin_expect (string_malloced, 0)) \
1249 free (string); \
1250 } \
1251 break;
1252 #endif
1253
1254 /* Orient the stream. */
1255 #ifdef ORIENT
1256 ORIENT;
1257 #endif
1258
1259 /* Sanity check of arguments. */
1260 ARGCHECK (s, format);
1261
1262 #ifdef ORIENT
1263 /* Check for correct orientation. */
1264 if (_IO_vtable_offset (s) == 0 &&
1265 _IO_fwide (s, sizeof (CHAR_T) == 1 ? -1 : 1)
1266 != (sizeof (CHAR_T) == 1 ? -1 : 1))
1267 /* The stream is already oriented otherwise. */
1268 return EOF;
1269 #endif
1270
1271 if (UNBUFFERED_P (s))
1272 /* Use a helper function which will allocate a local temporary buffer
1273 for the stream and then call us again. */
1274 return buffered_vfprintf (s, format, ap);
1275
1276 /* Initialize local variables. */
1277 done = 0;
1278 grouping = (const char *) -1;
1279 #ifdef __va_copy
1280 /* This macro will be available soon in gcc's <stdarg.h>. We need it
1281 since on some systems `va_list' is not an integral type. */
1282 __va_copy (ap_save, ap);
1283 #else
1284 ap_save = ap;
1285 #endif
1286 nspecs_done = 0;
1287
1288 #ifdef COMPILE_WPRINTF
1289 /* Find the first format specifier. */
1290 f = lead_str_end = __find_specwc ((const UCHAR_T *) format);
1291 #else
1292 /* Find the first format specifier. */
1293 f = lead_str_end = __find_specmb ((const UCHAR_T *) format);
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));
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 free (workstart);
1623 workstart = NULL;
1624
1625 if (grouping == (const char *) -1)
1626 {
1627 #ifdef COMPILE_WPRINTF
1628 thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
1629 _NL_NUMERIC_THOUSANDS_SEP_WC);
1630 #else
1631 thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1632 #endif
1633
1634 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1635 if (*grouping == '\0' || *grouping == CHAR_MAX)
1636 grouping = NULL;
1637 }
1638
1639 for (f = lead_str_end; *f != L_('\0'); f = specs[nspecs++].next_fmt)
1640 {
1641 if (nspecs >= nspecs_max)
1642 {
1643 /* Extend the array of format specifiers. */
1644 struct printf_spec *old = specs;
1645
1646 nspecs_max *= 2;
1647 specs = alloca (nspecs_max * sizeof (struct printf_spec));
1648
1649 if (specs == &old[nspecs])
1650 /* Stack grows up, OLD was the last thing allocated;
1651 extend it. */
1652 nspecs_max += nspecs_max / 2;
1653 else
1654 {
1655 /* Copy the old array's elements to the new space. */
1656 memcpy (specs, old, nspecs * sizeof (struct printf_spec));
1657 if (old == &specs[nspecs])
1658 /* Stack grows down, OLD was just below the new
1659 SPECS. We can use that space when the new space
1660 runs out. */
1661 nspecs_max += nspecs_max / 2;
1662 }
1663 }
1664
1665 /* Parse the format specifier. */
1666 #ifdef COMPILE_WPRINTF
1667 nargs += __parse_one_specwc (f, nargs, &specs[nspecs], &max_ref_arg);
1668 #else
1669 nargs += __parse_one_specmb (f, nargs, &specs[nspecs], &max_ref_arg);
1670 #endif
1671 }
1672
1673 /* Determine the number of arguments the format string consumes. */
1674 nargs = MAX (nargs, max_ref_arg);
1675
1676 /* Allocate memory for the argument descriptions. */
1677 args_type = alloca (nargs * sizeof (int));
1678 memset (args_type, s->_flags2 & _IO_FLAGS2_FORTIFY ? '\xff' : '\0',
1679 nargs * sizeof (int));
1680 args_value = alloca (nargs * sizeof (union printf_arg));
1681
1682 /* XXX Could do sanity check here: If any element in ARGS_TYPE is
1683 still zero after this loop, format is invalid. For now we
1684 simply use 0 as the value. */
1685
1686 /* Fill in the types of all the arguments. */
1687 for (cnt = 0; cnt < nspecs; ++cnt)
1688 {
1689 /* If the width is determined by an argument this is an int. */
1690 if (specs[cnt].width_arg != -1)
1691 args_type[specs[cnt].width_arg] = PA_INT;
1692
1693 /* If the precision is determined by an argument this is an int. */
1694 if (specs[cnt].prec_arg != -1)
1695 args_type[specs[cnt].prec_arg] = PA_INT;
1696
1697 switch (specs[cnt].ndata_args)
1698 {
1699 case 0: /* No arguments. */
1700 break;
1701 case 1: /* One argument; we already have the type. */
1702 args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
1703 break;
1704 default:
1705 /* We have more than one argument for this format spec.
1706 We must call the arginfo function again to determine
1707 all the types. */
1708 (void) (*__printf_arginfo_table[specs[cnt].info.spec])
1709 (&specs[cnt].info,
1710 specs[cnt].ndata_args, &args_type[specs[cnt].data_arg]);
1711 break;
1712 }
1713 }
1714
1715 /* Now we know all the types and the order. Fill in the argument
1716 values. */
1717 for (cnt = 0; cnt < nargs; ++cnt)
1718 switch (args_type[cnt])
1719 {
1720 #define T(tag, mem, type) \
1721 case tag: \
1722 args_value[cnt].mem = va_arg (ap_save, type); \
1723 break
1724
1725 T (PA_CHAR, pa_int, int); /* Promoted. */
1726 T (PA_WCHAR, pa_wchar, wint_t);
1727 T (PA_INT|PA_FLAG_SHORT, pa_int, int); /* Promoted. */
1728 T (PA_INT, pa_int, int);
1729 T (PA_INT|PA_FLAG_LONG, pa_long_int, long int);
1730 T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
1731 T (PA_FLOAT, pa_double, double); /* Promoted. */
1732 T (PA_DOUBLE, pa_double, double);
1733 case PA_DOUBLE|PA_FLAG_LONG_DOUBLE:
1734 if (__ldbl_is_dbl)
1735 {
1736 args_value[cnt].pa_double = va_arg (ap_save, double);
1737 args_type[cnt] &= ~PA_FLAG_LONG_DOUBLE;
1738 }
1739 else
1740 args_value[cnt].pa_long_double = va_arg (ap_save, long double);
1741 break;
1742 T (PA_STRING, pa_string, const char *);
1743 T (PA_WSTRING, pa_wstring, const wchar_t *);
1744 T (PA_POINTER, pa_pointer, void *);
1745 #undef T
1746 default:
1747 if ((args_type[cnt] & PA_FLAG_PTR) != 0)
1748 args_value[cnt].pa_pointer = va_arg (ap_save, void *);
1749 else
1750 args_value[cnt].pa_long_double = 0.0;
1751 break;
1752 case -1:
1753 /* Error case. Not all parameters appear in N$ format
1754 strings. We have no way to determine their type. */
1755 assert (s->_flags2 & _IO_FLAGS2_FORTIFY);
1756 __libc_fatal ("*** invalid %N$ use detected ***\n");
1757 }
1758
1759 /* Now walk through all format specifiers and process them. */
1760 for (; (size_t) nspecs_done < nspecs; ++nspecs_done)
1761 {
1762 #undef REF
1763 #ifdef SHARED
1764 # define REF(Name) &&do2_##Name - &&do_form_unknown
1765 #else
1766 # define REF(Name) &&do2_##Name
1767 #endif
1768 #undef LABEL
1769 #define LABEL(Name) do2_##Name
1770 STEP4_TABLE;
1771
1772 int is_negative;
1773 union
1774 {
1775 unsigned long long int longlong;
1776 unsigned long int word;
1777 } number;
1778 int base;
1779 union printf_arg the_arg;
1780 CHAR_T *string; /* Pointer to argument string. */
1781
1782 /* Fill variables from values in struct. */
1783 int alt = specs[nspecs_done].info.alt;
1784 int space = specs[nspecs_done].info.space;
1785 int left = specs[nspecs_done].info.left;
1786 int showsign = specs[nspecs_done].info.showsign;
1787 int group = specs[nspecs_done].info.group;
1788 int is_long_double = specs[nspecs_done].info.is_long_double;
1789 int is_short = specs[nspecs_done].info.is_short;
1790 int is_char = specs[nspecs_done].info.is_char;
1791 int is_long = specs[nspecs_done].info.is_long;
1792 int width = specs[nspecs_done].info.width;
1793 int prec = specs[nspecs_done].info.prec;
1794 int use_outdigits = specs[nspecs_done].info.i18n;
1795 char pad = specs[nspecs_done].info.pad;
1796 CHAR_T spec = specs[nspecs_done].info.spec;
1797
1798 workstart = NULL;
1799 workend = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
1800
1801 /* Fill in last information. */
1802 if (specs[nspecs_done].width_arg != -1)
1803 {
1804 /* Extract the field width from an argument. */
1805 specs[nspecs_done].info.width =
1806 args_value[specs[nspecs_done].width_arg].pa_int;
1807
1808 if (specs[nspecs_done].info.width < 0)
1809 /* If the width value is negative left justification is
1810 selected and the value is taken as being positive. */
1811 {
1812 specs[nspecs_done].info.width *= -1;
1813 left = specs[nspecs_done].info.left = 1;
1814 }
1815 width = specs[nspecs_done].info.width;
1816 }
1817
1818 if (specs[nspecs_done].prec_arg != -1)
1819 {
1820 /* Extract the precision from an argument. */
1821 specs[nspecs_done].info.prec =
1822 args_value[specs[nspecs_done].prec_arg].pa_int;
1823
1824 if (specs[nspecs_done].info.prec < 0)
1825 /* If the precision is negative the precision is
1826 omitted. */
1827 specs[nspecs_done].info.prec = -1;
1828
1829 prec = specs[nspecs_done].info.prec;
1830 }
1831
1832 /* Maybe the buffer is too small. */
1833 if (MAX (prec, width) + 32 > (int) (sizeof (work_buffer)
1834 / sizeof (CHAR_T)))
1835 {
1836 if (__libc_use_alloca ((MAX (prec, width) + 32)
1837 * sizeof (CHAR_T)))
1838 workend = ((CHAR_T *) alloca ((MAX (prec, width) + 32)
1839 * sizeof (CHAR_T))
1840 + (MAX (prec, width) + 32));
1841 else
1842 {
1843 workstart = (CHAR_T *) malloc ((MAX (prec, width) + 32)
1844 * sizeof (CHAR_T));
1845 workend = workstart + (MAX (prec, width) + 32);
1846 }
1847 }
1848
1849 /* Process format specifiers. */
1850 while (1)
1851 {
1852 JUMP (spec, step4_jumps);
1853
1854 process_arg ((&specs[nspecs_done]));
1855 process_string_arg ((&specs[nspecs_done]));
1856
1857 LABEL (form_unknown):
1858 {
1859 extern printf_function **__printf_function_table;
1860 int function_done;
1861 printf_function *function;
1862 unsigned int i;
1863 const void **ptr;
1864
1865 function =
1866 (__printf_function_table == NULL ? NULL :
1867 __printf_function_table[specs[nspecs_done].info.spec]);
1868
1869 if (function == NULL)
1870 function = &printf_unknown;
1871
1872 ptr = alloca (specs[nspecs_done].ndata_args
1873 * sizeof (const void *));
1874
1875 /* Fill in an array of pointers to the argument values. */
1876 for (i = 0; i < specs[nspecs_done].ndata_args; ++i)
1877 ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
1878
1879 /* Call the function. */
1880 function_done = (*function) (s, &specs[nspecs_done].info, ptr);
1881
1882 /* If an error occurred we don't have information about #
1883 of chars. */
1884 if (function_done < 0)
1885 {
1886 done = -1;
1887 goto all_done;
1888 }
1889
1890 done += function_done;
1891 }
1892 break;
1893 }
1894
1895 free (workstart);
1896 workstart = NULL;
1897
1898 /* Write the following constant string. */
1899 outstring (specs[nspecs_done].end_of_fmt,
1900 specs[nspecs_done].next_fmt
1901 - specs[nspecs_done].end_of_fmt);
1902 }
1903 }
1904
1905 all_done:
1906 if (__builtin_expect (workstart != NULL, 0))
1907 free (workstart);
1908 /* Unlock the stream. */
1909 _IO_funlockfile (s);
1910 _IO_cleanup_region_end (0);
1911
1912 return done;
1913 }
1914 \f
1915 /* Handle an unknown format specifier. This prints out a canonicalized
1916 representation of the format spec itself. */
1917 static int
1918 printf_unknown (FILE *s, const struct printf_info *info,
1919 const void *const *args)
1920
1921 {
1922 int done = 0;
1923 CHAR_T work_buffer[MAX (sizeof (info->width), sizeof (info->prec)) * 3];
1924 CHAR_T *const workend
1925 = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
1926 register CHAR_T *w;
1927
1928 outchar (L_('%'));
1929
1930 if (info->alt)
1931 outchar (L_('#'));
1932 if (info->group)
1933 outchar (L_('\''));
1934 if (info->showsign)
1935 outchar (L_('+'));
1936 else if (info->space)
1937 outchar (L_(' '));
1938 if (info->left)
1939 outchar (L_('-'));
1940 if (info->pad == L_('0'))
1941 outchar (L_('0'));
1942 if (info->i18n)
1943 outchar (L_('I'));
1944
1945 if (info->width != 0)
1946 {
1947 w = _itoa_word (info->width, workend, 10, 0);
1948 while (w < workend)
1949 outchar (*w++);
1950 }
1951
1952 if (info->prec != -1)
1953 {
1954 outchar (L_('.'));
1955 w = _itoa_word (info->prec, workend, 10, 0);
1956 while (w < workend)
1957 outchar (*w++);
1958 }
1959
1960 if (info->spec != L_('\0'))
1961 outchar (info->spec);
1962
1963 all_done:
1964 return done;
1965 }
1966 \f
1967 /* Group the digits according to the grouping rules of the current locale.
1968 The interpretation of GROUPING is as in `struct lconv' from <locale.h>. */
1969 static CHAR_T *
1970 internal_function
1971 group_number (CHAR_T *w, CHAR_T *rear_ptr, const char *grouping,
1972 #ifdef COMPILE_WPRINTF
1973 wchar_t thousands_sep
1974 #else
1975 const char *thousands_sep
1976 #endif
1977 )
1978 {
1979 int len;
1980 CHAR_T *src, *s;
1981 #ifndef COMPILE_WPRINTF
1982 int tlen = strlen (thousands_sep);
1983 #endif
1984
1985 /* We treat all negative values like CHAR_MAX. */
1986
1987 if (*grouping == CHAR_MAX || *grouping <= 0)
1988 /* No grouping should be done. */
1989 return w;
1990
1991 len = *grouping++;
1992
1993 /* Copy existing string so that nothing gets overwritten. */
1994 src = (CHAR_T *) alloca ((rear_ptr - w) * sizeof (CHAR_T));
1995 s = (CHAR_T *) __mempcpy (src, w,
1996 (rear_ptr - w) * sizeof (CHAR_T));
1997 w = rear_ptr;
1998
1999 /* Process all characters in the string. */
2000 while (s > src)
2001 {
2002 *--w = *--s;
2003
2004 if (--len == 0 && s > src)
2005 {
2006 /* A new group begins. */
2007 #ifdef COMPILE_WPRINTF
2008 *--w = thousands_sep;
2009 #else
2010 int cnt = tlen;
2011 do
2012 *--w = thousands_sep[--cnt];
2013 while (cnt > 0);
2014 #endif
2015
2016 if (*grouping == CHAR_MAX
2017 #if CHAR_MIN < 0
2018 || *grouping < 0
2019 #endif
2020 )
2021 {
2022 /* No further grouping to be done.
2023 Copy the rest of the number. */
2024 do
2025 *--w = *--s;
2026 while (s > src);
2027 break;
2028 }
2029 else if (*grouping != '\0')
2030 /* The previous grouping repeats ad infinitum. */
2031 len = *grouping++;
2032 else
2033 len = grouping[-1];
2034 }
2035 }
2036 return w;
2037 }
2038 \f
2039 /* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
2040 struct helper_file
2041 {
2042 struct _IO_FILE_plus _f;
2043 #ifdef COMPILE_WPRINTF
2044 struct _IO_wide_data _wide_data;
2045 #endif
2046 _IO_FILE *_put_stream;
2047 #ifdef _IO_MTSAFE_IO
2048 _IO_lock_t lock;
2049 #endif
2050 };
2051
2052 static int
2053 _IO_helper_overflow (_IO_FILE *s, int c)
2054 {
2055 _IO_FILE *target = ((struct helper_file*) s)->_put_stream;
2056 #ifdef COMPILE_WPRINTF
2057 int used = s->_wide_data->_IO_write_ptr - s->_wide_data->_IO_write_base;
2058 if (used)
2059 {
2060 _IO_size_t written = _IO_sputn (target, s->_wide_data->_IO_write_base,
2061 used);
2062 s->_wide_data->_IO_write_ptr -= written;
2063 }
2064 #else
2065 int used = s->_IO_write_ptr - s->_IO_write_base;
2066 if (used)
2067 {
2068 _IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
2069 s->_IO_write_ptr -= written;
2070 }
2071 #endif
2072 return PUTC (c, s);
2073 }
2074
2075 #ifdef COMPILE_WPRINTF
2076 static const struct _IO_jump_t _IO_helper_jumps =
2077 {
2078 JUMP_INIT_DUMMY,
2079 JUMP_INIT (finish, INTUSE(_IO_wdefault_finish)),
2080 JUMP_INIT (overflow, _IO_helper_overflow),
2081 JUMP_INIT (underflow, _IO_default_underflow),
2082 JUMP_INIT (uflow, INTUSE(_IO_default_uflow)),
2083 JUMP_INIT (pbackfail, (_IO_pbackfail_t) INTUSE(_IO_wdefault_pbackfail)),
2084 JUMP_INIT (xsputn, INTUSE(_IO_wdefault_xsputn)),
2085 JUMP_INIT (xsgetn, INTUSE(_IO_wdefault_xsgetn)),
2086 JUMP_INIT (seekoff, _IO_default_seekoff),
2087 JUMP_INIT (seekpos, _IO_default_seekpos),
2088 JUMP_INIT (setbuf, _IO_default_setbuf),
2089 JUMP_INIT (sync, _IO_default_sync),
2090 JUMP_INIT (doallocate, INTUSE(_IO_wdefault_doallocate)),
2091 JUMP_INIT (read, _IO_default_read),
2092 JUMP_INIT (write, _IO_default_write),
2093 JUMP_INIT (seek, _IO_default_seek),
2094 JUMP_INIT (close, _IO_default_close),
2095 JUMP_INIT (stat, _IO_default_stat)
2096 };
2097 #else
2098 static const struct _IO_jump_t _IO_helper_jumps =
2099 {
2100 JUMP_INIT_DUMMY,
2101 JUMP_INIT (finish, INTUSE(_IO_default_finish)),
2102 JUMP_INIT (overflow, _IO_helper_overflow),
2103 JUMP_INIT (underflow, _IO_default_underflow),
2104 JUMP_INIT (uflow, INTUSE(_IO_default_uflow)),
2105 JUMP_INIT (pbackfail, INTUSE(_IO_default_pbackfail)),
2106 JUMP_INIT (xsputn, INTUSE(_IO_default_xsputn)),
2107 JUMP_INIT (xsgetn, INTUSE(_IO_default_xsgetn)),
2108 JUMP_INIT (seekoff, _IO_default_seekoff),
2109 JUMP_INIT (seekpos, _IO_default_seekpos),
2110 JUMP_INIT (setbuf, _IO_default_setbuf),
2111 JUMP_INIT (sync, _IO_default_sync),
2112 JUMP_INIT (doallocate, INTUSE(_IO_default_doallocate)),
2113 JUMP_INIT (read, _IO_default_read),
2114 JUMP_INIT (write, _IO_default_write),
2115 JUMP_INIT (seek, _IO_default_seek),
2116 JUMP_INIT (close, _IO_default_close),
2117 JUMP_INIT (stat, _IO_default_stat)
2118 };
2119 #endif
2120
2121 static int
2122 internal_function
2123 buffered_vfprintf (register _IO_FILE *s, const CHAR_T *format,
2124 _IO_va_list args)
2125 {
2126 CHAR_T buf[_IO_BUFSIZ];
2127 struct helper_file helper;
2128 register _IO_FILE *hp = (_IO_FILE *) &helper._f;
2129 int result, to_flush;
2130
2131 /* Orient the stream. */
2132 #ifdef ORIENT
2133 ORIENT;
2134 #endif
2135
2136 /* Initialize helper. */
2137 helper._put_stream = s;
2138 #ifdef COMPILE_WPRINTF
2139 hp->_wide_data = &helper._wide_data;
2140 _IO_wsetp (hp, buf, buf + sizeof buf / sizeof (CHAR_T));
2141 hp->_mode = 1;
2142 #else
2143 _IO_setp (hp, buf, buf + sizeof buf);
2144 hp->_mode = -1;
2145 #endif
2146 hp->_IO_file_flags = _IO_MAGIC|_IO_NO_READS|_IO_USER_LOCK;
2147 #if _IO_JUMPS_OFFSET
2148 hp->_vtable_offset = 0;
2149 #endif
2150 #ifdef _IO_MTSAFE_IO
2151 hp->_lock = NULL;
2152 #endif
2153 hp->_flags2 = s->_flags2;
2154 _IO_JUMPS (&helper._f) = (struct _IO_jump_t *) &_IO_helper_jumps;
2155
2156 /* Now print to helper instead. */
2157 #ifndef COMPILE_WPRINTF
2158 result = INTUSE(_IO_vfprintf) (hp, format, args);
2159 #else
2160 result = vfprintf (hp, format, args);
2161 #endif
2162
2163 /* Lock stream. */
2164 __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile, s);
2165 _IO_flockfile (s);
2166
2167 /* Now flush anything from the helper to the S. */
2168 #ifdef COMPILE_WPRINTF
2169 if ((to_flush = (hp->_wide_data->_IO_write_ptr
2170 - hp->_wide_data->_IO_write_base)) > 0)
2171 {
2172 if ((int) _IO_sputn (s, hp->_wide_data->_IO_write_base, to_flush)
2173 != to_flush)
2174 result = -1;
2175 }
2176 #else
2177 if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
2178 {
2179 if ((int) _IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
2180 result = -1;
2181 }
2182 #endif
2183
2184 /* Unlock the stream. */
2185 _IO_funlockfile (s);
2186 __libc_cleanup_region_end (0);
2187
2188 return result;
2189 }
2190
2191 #undef vfprintf
2192 #ifdef COMPILE_WPRINTF
2193 strong_alias (_IO_vfwprintf, __vfwprintf);
2194 ldbl_weak_alias (_IO_vfwprintf, vfwprintf);
2195 #else
2196 ldbl_strong_alias (_IO_vfprintf_internal, vfprintf);
2197 ldbl_hidden_def (_IO_vfprintf_internal, vfprintf)
2198 ldbl_strong_alias (_IO_vfprintf_internal, _IO_vfprintf);
2199 #endif
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