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vfs: check userland buffers before reading them.
[haiku.git] / src / system / libroot / posix / glibc / stdio-common / vfprintf.c
blob788290b803bd2cc695b89d47ca024855a60d49e5
1 /* Copyright (C) 1991-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17 02111-1307 USA. */
18
19 #include <ctype.h>
20 #include <limits.h>
21 #include <printf.h>
22 #include <stdarg.h>
23 #include <stdint.h>
24 #include <stdlib.h>
25 #include <string.h>
26 #include <errno.h>
27 #include <wchar.h>
28 #include <bits/libc-lock.h>
29 #include <sys/param.h>
30 #include "_itoa.h"
31 #include <locale/localeinfo.h>
32 #include <stdio.h>
33
34 /* This code is shared between the standard stdio implementation found
35 in GNU C library and the libio implementation originally found in
36 GNU libg++.
37
38 Beside this it is also shared between the normal and wide character
39 implementation as defined in ISO/IEC 9899:1990/Amendment 1:1995. */
40
41
42 #ifdef USE_IN_LIBIO
43 /* This code is for use in libio. */
44 # include <libioP.h>
45 # define FILE _IO_FILE
46 # undef va_list
47 # define va_list _IO_va_list
48 # undef BUFSIZ
49 # define BUFSIZ _IO_BUFSIZ
50 # define ARGCHECK(S, Format) \
51 do \
52 { \
53 /* Check file argument for consistence. */ \
54 CHECK_FILE (S, -1); \
55 if (S->_flags & _IO_NO_WRITES) \
56 { \
57 __set_errno (EBADF); \
58 return -1; \
59 } \
60 if (Format == NULL) \
61 { \
62 MAYBE_SET_EINVAL; \
63 return -1; \
64 } \
65 } while (0)
66 # define UNBUFFERED_P(S) ((S)->_IO_file_flags & _IO_UNBUFFERED)
67
68 # ifndef COMPILE_WPRINTF
69 # define vfprintf _IO_vfprintf
70 # define CHAR_T char
71 # define UCHAR_T unsigned char
72 # define INT_T int
73 # define L_(Str) Str
74 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - '0') < 10)
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 (s->_vtable_offset == 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
92 # include "_itowa.h"
93
94 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
95 # define PAD(Padchar) \
96 if (width > 0) \
97 done += _IO_wpadn (s, (Padchar), width)
98 # define PUTC(C, F) _IO_putwc_unlocked (C, F)
99 # define ORIENT if (_IO_fwide (s, 1) != 1) return -1
100
101 # define _itoa(Val, Buf, Base, Case) _itowa (Val, Buf, Base, Case)
102 # define _itoa_word(Val, Buf, Base, Case) _itowa_word (Val, Buf, Base, Case)
103 # undef EOF
104 # define EOF WEOF
105 # endif
106 #else /* ! USE_IN_LIBIO */
107 /* This code is for use in the GNU C library. */
108 # define ARGCHECK(S, Format) \
109 do \
110 { \
111 /* Check file argument for consistence. */ \
112 if (!__validfp (S) || !S->__mode.__write) \
113 { \
114 __set_errno (EBADF); \
115 return -1; \
116 } \
117 if (Format == NULL) \
118 { \
119 __set_errno (EINVAL); \
120 return -1; \
121 } \
122 if (!S->__seen) \
123 { \
124 if (__flshfp (S, EOF) == EOF) \
125 return -1; \
126 } \
127 } \
128 while (0)
129 # define UNBUFFERED_P(s) ((s)->__buffer == NULL)
130
131 # define CHAR_T char
132 # define UCHAR_T unsigned char
133 # define INT_T int
134 # define L_(Str) Str
135 # define ISDIGIT(Ch) isdigit (Ch)
136
137 # define PUT(F, S, N) fwrite (S, 1, N, F)
138 ssize_t __printf_pad __P ((FILE *, char pad, size_t n));
139 # define PAD(Padchar) \
140 if (width > 0) \
141 { ssize_t __res = __printf_pad (s, (Padchar), width); \
142 if (__res == -1) \
143 { \
144 done = -1; \
145 goto all_done; \
146 } \
147 done += __res; }
148 # define PUTC(C, F) putc (C, F)
149
150 /* XXX These declarations should go as soon as the stdio header files
151 have these prototypes. */
152 extern void __flockfile (FILE *);
153 extern void __funlockfile (FILE *);
154 #endif /* USE_IN_LIBIO */
155
156 #include "_i18n_number.h"
157
158 /* Include the shared code for parsing the format string. */
159 #include "printf-parse.h"
160
161
162 #define outchar(Ch) \
163 do \
164 { \
165 register const INT_T outc = (Ch); \
166 if (PUTC (outc, s) == EOF) \
167 { \
168 done = -1; \
169 goto all_done; \
170 } \
171 else \
172 ++done; \
173 } \
174 while (0)
175
176 #define outstring(String, Len) \
177 do \
178 { \
179 if ((size_t) PUT (s, (String), (Len)) != (size_t) (Len)) \
180 { \
181 done = -1; \
182 goto all_done; \
183 } \
184 done += (Len); \
185 } \
186 while (0)
187
188 /* For handling long_double and longlong we use the same flag. If
189 `long' and `long long' are effectively the same type define it to
190 zero. */
191 #if LONG_MAX == LONG_LONG_MAX
192 # define is_longlong 0
193 #else
194 # define is_longlong is_long_double
195 #endif
196
197 /* If `long' and `int' is effectively the same type we don't have to
198 handle `long separately. */
199 #if INT_MAX == LONG_MAX
200 # define is_long_num 0
201 #else
202 # define is_long_num is_long
203 #endif
204
205
206 /* Global variables. */
207 static const CHAR_T null[] = L_("(null)");
208
209
210 /* Helper function to provide temporary buffering for unbuffered streams. */
211 static int buffered_vfprintf __P ((FILE *stream, const CHAR_T *fmt, va_list))
212 internal_function;
213
214 /* Handle unknown format specifier. */
215 static int printf_unknown __P ((FILE *, const struct printf_info *,
216 const void *const *));
217
218 /* Group digits of number string. */
219 #ifdef COMPILE_WPRINTF
220 static CHAR_T *group_number __P ((CHAR_T *, CHAR_T *, const char *, wchar_t))
221 internal_function;
222 #else
223 static CHAR_T *group_number __P ((CHAR_T *, CHAR_T *, const char *,
224 const char *)) internal_function;
225 #endif
226
227
228 /* The function itself. */
229 int
230 vfprintf (FILE *s, const CHAR_T *format, va_list ap)
231 {
232 /* The character used as thousands separator. */
233 #ifdef COMPILE_WPRINTF
234 wchar_t thousands_sep = L'\0';
235 #else
236 const char *thousands_sep = NULL;
237 #endif
238
239 /* The string describing the size of groups of digits. */
240 const char *grouping;
241
242 /* Place to accumulate the result. */
243 int done;
244
245 /* Current character in format string. */
246 const UCHAR_T *f;
247
248 /* End of leading constant string. */
249 const UCHAR_T *lead_str_end;
250
251 /* Points to next format specifier. */
252 const UCHAR_T *end_of_spec;
253
254 /* Buffer intermediate results. */
255 CHAR_T work_buffer[1000];
256 CHAR_T *workstart = NULL;
257 CHAR_T *workend;
258
259 /* State for restartable multibyte character handling functions. */
260 #ifndef COMPILE_WPRINTF
261 mbstate_t mbstate;
262 #endif
263
264 /* We have to save the original argument pointer. */
265 va_list ap_save;
266
267 /* Count number of specifiers we already processed. */
268 int nspecs_done;
269
270 /* For the %m format we may need the current `errno' value. */
271 int save_errno = errno;
272
273
274 /* This table maps a character into a number representing a
275 class. In each step there is a destination label for each
276 class. */
277 static const int jump_table[] =
278 {
279 /* ' ' */ 1, 0, 0, /* '#' */ 4,
280 0, /* '%' */ 14, 0, /* '\''*/ 6,
281 0, 0, /* '*' */ 7, /* '+' */ 2,
282 0, /* '-' */ 3, /* '.' */ 9, 0,
283 /* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
284 /* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
285 /* '8' */ 8, /* '9' */ 8, 0, 0,
286 0, 0, 0, 0,
287 0, /* 'A' */ 26, 0, /* 'C' */ 25,
288 0, /* 'E' */ 19, /* F */ 19, /* 'G' */ 19,
289 0, /* 'I' */ 29, 0, 0,
290 /* 'L' */ 12, 0, 0, 0,
291 0, 0, 0, /* 'S' */ 21,
292 0, 0, 0, 0,
293 /* 'X' */ 18, 0, /* 'Z' */ 13, 0,
294 0, 0, 0, 0,
295 0, /* 'a' */ 26, 0, /* 'c' */ 20,
296 /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
297 /* 'h' */ 10, /* 'i' */ 15, /* 'j' */ 28, 0,
298 /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
299 /* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
300 /* 't' */ 27, /* 'u' */ 16, 0, 0,
301 /* 'x' */ 18, 0, /* 'z' */ 13
302 };
303
304 #define NOT_IN_JUMP_RANGE(Ch) ((Ch) < L_(' ') || (Ch) > L_('z'))
305 #define CHAR_CLASS(Ch) (jump_table[(INT_T) (Ch) - L_(' ')])
306 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined SHARED
307 /* 'int' is enough and it saves some space on 64 bit systems. */
308 # define JUMP_TABLE_TYPE const int
309 # define JUMP(ChExpr, table) \
310 do \
311 { \
312 int offset; \
313 void *__unbounded ptr; \
314 spec = (ChExpr); \
315 offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
316 : table[CHAR_CLASS (spec)]; \
317 ptr = &&do_form_unknown + offset; \
318 goto *ptr; \
319 } \
320 while (0)
321 #else
322 # define JUMP_TABLE_TYPE const void *const
323 # define JUMP(ChExpr, table) \
324 do \
325 { \
326 const void *__unbounded ptr; \
327 spec = (ChExpr); \
328 ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
329 : table[CHAR_CLASS (spec)]; \
330 goto *ptr; \
331 } \
332 while (0)
333 #endif
334
335 #define STEP0_3_TABLE \
336 /* Step 0: at the beginning. */ \
337 static JUMP_TABLE_TYPE step0_jumps[30] = \
338 { \
339 REF (form_unknown), \
340 REF (flag_space), /* for ' ' */ \
341 REF (flag_plus), /* for '+' */ \
342 REF (flag_minus), /* for '-' */ \
343 REF (flag_hash), /* for '<hash>' */ \
344 REF (flag_zero), /* for '0' */ \
345 REF (flag_quote), /* for '\'' */ \
346 REF (width_asterics), /* for '*' */ \
347 REF (width), /* for '1'...'9' */ \
348 REF (precision), /* for '.' */ \
349 REF (mod_half), /* for 'h' */ \
350 REF (mod_long), /* for 'l' */ \
351 REF (mod_longlong), /* for 'L', 'q' */ \
352 REF (mod_size_t), /* for 'z', 'Z' */ \
353 REF (form_percent), /* for '%' */ \
354 REF (form_integer), /* for 'd', 'i' */ \
355 REF (form_unsigned), /* for 'u' */ \
356 REF (form_octal), /* for 'o' */ \
357 REF (form_hexa), /* for 'X', 'x' */ \
358 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
359 REF (form_character), /* for 'c' */ \
360 REF (form_string), /* for 's', 'S' */ \
361 REF (form_pointer), /* for 'p' */ \
362 REF (form_number), /* for 'n' */ \
363 REF (form_strerror), /* for 'm' */ \
364 REF (form_wcharacter), /* for 'C' */ \
365 REF (form_floathex), /* for 'A', 'a' */ \
366 REF (mod_ptrdiff_t), /* for 't' */ \
367 REF (mod_intmax_t), /* for 'j' */ \
368 REF (flag_i18n), /* for 'I' */ \
369 }; \
370 /* Step 1: after processing width. */ \
371 static JUMP_TABLE_TYPE step1_jumps[30] = \
372 { \
373 REF (form_unknown), \
374 REF (form_unknown), /* for ' ' */ \
375 REF (form_unknown), /* for '+' */ \
376 REF (form_unknown), /* for '-' */ \
377 REF (form_unknown), /* for '<hash>' */ \
378 REF (form_unknown), /* for '0' */ \
379 REF (form_unknown), /* for '\'' */ \
380 REF (form_unknown), /* for '*' */ \
381 REF (form_unknown), /* for '1'...'9' */ \
382 REF (precision), /* for '.' */ \
383 REF (mod_half), /* for 'h' */ \
384 REF (mod_long), /* for 'l' */ \
385 REF (mod_longlong), /* for 'L', 'q' */ \
386 REF (mod_size_t), /* for 'z', 'Z' */ \
387 REF (form_percent), /* for '%' */ \
388 REF (form_integer), /* for 'd', 'i' */ \
389 REF (form_unsigned), /* for 'u' */ \
390 REF (form_octal), /* for 'o' */ \
391 REF (form_hexa), /* for 'X', 'x' */ \
392 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
393 REF (form_character), /* for 'c' */ \
394 REF (form_string), /* for 's', 'S' */ \
395 REF (form_pointer), /* for 'p' */ \
396 REF (form_number), /* for 'n' */ \
397 REF (form_strerror), /* for 'm' */ \
398 REF (form_wcharacter), /* for 'C' */ \
399 REF (form_floathex), /* for 'A', 'a' */ \
400 REF (mod_ptrdiff_t), /* for 't' */ \
401 REF (mod_intmax_t), /* for 'j' */ \
402 REF (flag_i18n) /* for 'I' */ \
403 }; \
404 /* Step 2: after processing precision. */ \
405 static JUMP_TABLE_TYPE step2_jumps[30] = \
406 { \
407 REF (form_unknown), \
408 REF (form_unknown), /* for ' ' */ \
409 REF (form_unknown), /* for '+' */ \
410 REF (form_unknown), /* for '-' */ \
411 REF (form_unknown), /* for '<hash>' */ \
412 REF (form_unknown), /* for '0' */ \
413 REF (form_unknown), /* for '\'' */ \
414 REF (form_unknown), /* for '*' */ \
415 REF (form_unknown), /* for '1'...'9' */ \
416 REF (form_unknown), /* for '.' */ \
417 REF (mod_half), /* for 'h' */ \
418 REF (mod_long), /* for 'l' */ \
419 REF (mod_longlong), /* for 'L', 'q' */ \
420 REF (mod_size_t), /* for 'z', 'Z' */ \
421 REF (form_percent), /* for '%' */ \
422 REF (form_integer), /* for 'd', 'i' */ \
423 REF (form_unsigned), /* for 'u' */ \
424 REF (form_octal), /* for 'o' */ \
425 REF (form_hexa), /* for 'X', 'x' */ \
426 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
427 REF (form_character), /* for 'c' */ \
428 REF (form_string), /* for 's', 'S' */ \
429 REF (form_pointer), /* for 'p' */ \
430 REF (form_number), /* for 'n' */ \
431 REF (form_strerror), /* for 'm' */ \
432 REF (form_wcharacter), /* for 'C' */ \
433 REF (form_floathex), /* for 'A', 'a' */ \
434 REF (mod_ptrdiff_t), /* for 't' */ \
435 REF (mod_intmax_t), /* for 'j' */ \
436 REF (flag_i18n) /* for 'I' */ \
437 }; \
438 /* Step 3a: after processing first 'h' modifier. */ \
439 static JUMP_TABLE_TYPE step3a_jumps[30] = \
440 { \
441 REF (form_unknown), \
442 REF (form_unknown), /* for ' ' */ \
443 REF (form_unknown), /* for '+' */ \
444 REF (form_unknown), /* for '-' */ \
445 REF (form_unknown), /* for '<hash>' */ \
446 REF (form_unknown), /* for '0' */ \
447 REF (form_unknown), /* for '\'' */ \
448 REF (form_unknown), /* for '*' */ \
449 REF (form_unknown), /* for '1'...'9' */ \
450 REF (form_unknown), /* for '.' */ \
451 REF (mod_halfhalf), /* for 'h' */ \
452 REF (form_unknown), /* for 'l' */ \
453 REF (form_unknown), /* for 'L', 'q' */ \
454 REF (form_unknown), /* for 'z', 'Z' */ \
455 REF (form_percent), /* for '%' */ \
456 REF (form_integer), /* for 'd', 'i' */ \
457 REF (form_unsigned), /* for 'u' */ \
458 REF (form_octal), /* for 'o' */ \
459 REF (form_hexa), /* for 'X', 'x' */ \
460 REF (form_unknown), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
461 REF (form_unknown), /* for 'c' */ \
462 REF (form_unknown), /* for 's', 'S' */ \
463 REF (form_unknown), /* for 'p' */ \
464 REF (form_number), /* for 'n' */ \
465 REF (form_unknown), /* for 'm' */ \
466 REF (form_unknown), /* for 'C' */ \
467 REF (form_unknown), /* for 'A', 'a' */ \
468 REF (form_unknown), /* for 't' */ \
469 REF (form_unknown), /* for 'j' */ \
470 REF (form_unknown) /* for 'I' */ \
471 }; \
472 /* Step 3b: after processing first 'l' modifier. */ \
473 static JUMP_TABLE_TYPE step3b_jumps[30] = \
474 { \
475 REF (form_unknown), \
476 REF (form_unknown), /* for ' ' */ \
477 REF (form_unknown), /* for '+' */ \
478 REF (form_unknown), /* for '-' */ \
479 REF (form_unknown), /* for '<hash>' */ \
480 REF (form_unknown), /* for '0' */ \
481 REF (form_unknown), /* for '\'' */ \
482 REF (form_unknown), /* for '*' */ \
483 REF (form_unknown), /* for '1'...'9' */ \
484 REF (form_unknown), /* for '.' */ \
485 REF (form_unknown), /* for 'h' */ \
486 REF (mod_longlong), /* for 'l' */ \
487 REF (form_unknown), /* for 'L', 'q' */ \
488 REF (form_unknown), /* for 'z', 'Z' */ \
489 REF (form_percent), /* for '%' */ \
490 REF (form_integer), /* for 'd', 'i' */ \
491 REF (form_unsigned), /* for 'u' */ \
492 REF (form_octal), /* for 'o' */ \
493 REF (form_hexa), /* for 'X', 'x' */ \
494 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
495 REF (form_character), /* for 'c' */ \
496 REF (form_string), /* for 's', 'S' */ \
497 REF (form_pointer), /* for 'p' */ \
498 REF (form_number), /* for 'n' */ \
499 REF (form_strerror), /* for 'm' */ \
500 REF (form_wcharacter), /* for 'C' */ \
501 REF (form_floathex), /* for 'A', 'a' */ \
502 REF (form_unknown), /* for 't' */ \
503 REF (form_unknown), /* for 'j' */ \
504 REF (form_unknown) /* for 'I' */ \
505 }
506
507 #define STEP4_TABLE \
508 /* Step 4: processing format specifier. */ \
509 static JUMP_TABLE_TYPE step4_jumps[30] = \
510 { \
511 REF (form_unknown), \
512 REF (form_unknown), /* for ' ' */ \
513 REF (form_unknown), /* for '+' */ \
514 REF (form_unknown), /* for '-' */ \
515 REF (form_unknown), /* for '<hash>' */ \
516 REF (form_unknown), /* for '0' */ \
517 REF (form_unknown), /* for '\'' */ \
518 REF (form_unknown), /* for '*' */ \
519 REF (form_unknown), /* for '1'...'9' */ \
520 REF (form_unknown), /* for '.' */ \
521 REF (form_unknown), /* for 'h' */ \
522 REF (form_unknown), /* for 'l' */ \
523 REF (form_unknown), /* for 'L', 'q' */ \
524 REF (form_unknown), /* for 'z', 'Z' */ \
525 REF (form_percent), /* for '%' */ \
526 REF (form_integer), /* for 'd', 'i' */ \
527 REF (form_unsigned), /* for 'u' */ \
528 REF (form_octal), /* for 'o' */ \
529 REF (form_hexa), /* for 'X', 'x' */ \
530 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
531 REF (form_character), /* for 'c' */ \
532 REF (form_string), /* for 's', 'S' */ \
533 REF (form_pointer), /* for 'p' */ \
534 REF (form_number), /* for 'n' */ \
535 REF (form_strerror), /* for 'm' */ \
536 REF (form_wcharacter), /* for 'C' */ \
537 REF (form_floathex), /* for 'A', 'a' */ \
538 REF (form_unknown), /* for 't' */ \
539 REF (form_unknown), /* for 'j' */ \
540 REF (form_unknown) /* for 'I' */ \
541 }
542
543
544 #define process_arg(fspec) \
545 /* Start real work. We know about all flags and modifiers and \
546 now process the wanted format specifier. */ \
547 LABEL (form_percent): \
548 /* Write a literal "%". */ \
549 outchar (L_('%')); \
550 break; \
551 \
552 LABEL (form_integer): \
553 /* Signed decimal integer. */ \
554 base = 10; \
555 \
556 if (is_longlong) \
557 { \
558 long long int signed_number; \
559 \
560 if (fspec == NULL) \
561 signed_number = va_arg (ap, long long int); \
562 else \
563 signed_number = args_value[fspec->data_arg].pa_long_long_int; \
564 \
565 is_negative = signed_number < 0; \
566 number.longlong = is_negative ? (- signed_number) : signed_number; \
567 \
568 goto LABEL (longlong_number); \
569 } \
570 else \
571 { \
572 long int signed_number; \
573 \
574 if (fspec == NULL) \
575 { \
576 if (is_long_num) \
577 signed_number = va_arg (ap, long int); \
578 else /* `char' and `short int' will be promoted to `int'. */ \
579 signed_number = va_arg (ap, int); \
580 } \
581 else \
582 if (is_long_num) \
583 signed_number = args_value[fspec->data_arg].pa_long_int; \
584 else if (!is_short) \
585 signed_number = args_value[fspec->data_arg].pa_int; \
586 else \
587 signed_number = args_value[fspec->data_arg].pa_short_int; \
588 \
589 is_negative = signed_number < 0; \
590 number.word = is_negative ? (- signed_number) : signed_number; \
591 \
592 goto LABEL (number); \
593 } \
594 /* NOTREACHED */ \
595 \
596 LABEL (form_unsigned): \
597 /* Unsigned decimal integer. */ \
598 base = 10; \
599 goto LABEL (unsigned_number); \
600 /* NOTREACHED */ \
601 \
602 LABEL (form_octal): \
603 /* Unsigned octal integer. */ \
604 base = 8; \
605 goto LABEL (unsigned_number); \
606 /* NOTREACHED */ \
607 \
608 LABEL (form_hexa): \
609 /* Unsigned hexadecimal integer. */ \
610 base = 16; \
611 \
612 LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
613 \
614 /* ISO specifies the `+' and ` ' flags only for signed \
615 conversions. */ \
616 is_negative = 0; \
617 showsign = 0; \
618 space = 0; \
619 \
620 if (is_longlong) \
621 { \
622 if (fspec == NULL) \
623 number.longlong = va_arg (ap, unsigned long long int); \
624 else \
625 number.longlong = args_value[fspec->data_arg].pa_u_long_long_int; \
626 \
627 LABEL (longlong_number): \
628 if (prec < 0) \
629 /* Supply a default precision if none was given. */ \
630 prec = 1; \
631 else \
632 /* We have to take care for the '0' flag. If a precision \
633 is given it must be ignored. */ \
634 pad = L_(' '); \
635 \
636 /* If the precision is 0 and the number is 0 nothing has to \
637 be written for the number, except for the 'o' format in \
638 alternate form. */ \
639 if (prec == 0 && number.longlong == 0) \
640 { \
641 string = workend; \
642 if (base == 8 && alt) \
643 *--string = L_('0'); \
644 } \
645 else \
646 { \
647 /* Put the number in WORK. */ \
648 string = _itoa (number.longlong, workend, base, \
649 spec == L_('X')); \
650 if (group && grouping) \
651 string = group_number (string, workend, grouping, \
652 thousands_sep); \
653 \
654 if (use_outdigits && base == 10) \
655 string = _i18n_number_rewrite (string, workend); \
656 } \
657 /* Simplify further test for num != 0. */ \
658 number.word = number.longlong != 0; \
659 } \
660 else \
661 { \
662 if (fspec == NULL) \
663 { \
664 if (is_long_num) \
665 number.word = va_arg (ap, unsigned long int); \
666 else if (is_char) \
667 number.word = (unsigned char) va_arg (ap, unsigned int); \
668 else if (!is_short) \
669 number.word = va_arg (ap, unsigned int); \
670 else \
671 number.word = (unsigned short int) va_arg (ap, unsigned int); \
672 } \
673 else \
674 if (is_long_num) \
675 number.word = args_value[fspec->data_arg].pa_u_long_int; \
676 else if (is_char) \
677 number.word = (unsigned char) \
678 args_value[fspec->data_arg].pa_char; \
679 else if (!is_short) \
680 number.word = args_value[fspec->data_arg].pa_u_int; \
681 else \
682 number.word = (unsigned short int) \
683 args_value[fspec->data_arg].pa_u_short_int; \
684 \
685 LABEL (number): \
686 if (prec < 0) \
687 /* Supply a default precision if none was given. */ \
688 prec = 1; \
689 else \
690 /* We have to take care for the '0' flag. If a precision \
691 is given it must be ignored. */ \
692 pad = L_(' '); \
693 \
694 /* If the precision is 0 and the number is 0 nothing has to \
695 be written for the number, except for the 'o' format in \
696 alternate form. */ \
697 if (prec == 0 && number.word == 0) \
698 { \
699 string = workend; \
700 if (base == 8 && alt) \
701 *--string = L_('0'); \
702 } \
703 else \
704 { \
705 /* Put the number in WORK. */ \
706 string = _itoa_word (number.word, workend, base, \
707 spec == L_('X')); \
708 if (group && grouping) \
709 string = group_number (string, workend, grouping, \
710 thousands_sep); \
711 \
712 if (use_outdigits && base == 10) \
713 string = _i18n_number_rewrite (string, workend); \
714 } \
715 } \
716 \
717 if (prec <= workend - string && number.word != 0 && alt && base == 8) \
718 /* Add octal marker. */ \
719 *--string = L_('0'); \
720 \
721 prec = MAX (0, prec - (workend - string)); \
722 \
723 if (!left) \
724 { \
725 width -= workend - string + prec; \
726 \
727 if (number.word != 0 && alt && base == 16) \
728 /* Account for 0X hex marker. */ \
729 width -= 2; \
730 \
731 if (is_negative || showsign || space) \
732 --width; \
733 \
734 if (pad == L_(' ')) \
735 { \
736 PAD (L_(' ')); \
737 width = 0; \
738 } \
739 \
740 if (is_negative) \
741 outchar (L_('-')); \
742 else if (showsign) \
743 outchar (L_('+')); \
744 else if (space) \
745 outchar (L_(' ')); \
746 \
747 if (number.word != 0 && alt && base == 16) \
748 { \
749 outchar (L_('0')); \
750 outchar (spec); \
751 } \
752 \
753 width += prec; \
754 PAD (L_('0')); \
755 \
756 outstring (string, workend - string); \
757 \
758 break; \
759 } \
760 else \
761 { \
762 if (is_negative) \
763 { \
764 outchar (L_('-')); \
765 --width; \
766 } \
767 else if (showsign) \
768 { \
769 outchar (L_('+')); \
770 --width; \
771 } \
772 else if (space) \
773 { \
774 outchar (L_(' ')); \
775 --width; \
776 } \
777 \
778 if (number.word != 0 && alt && base == 16) \
779 { \
780 outchar (L_('0')); \
781 outchar (spec); \
782 width -= 2; \
783 } \
784 \
785 width -= workend - string + prec; \
786 \
787 if (prec > 0) \
788 { \
789 int temp = width; \
790 width = prec; \
791 PAD (L_('0'));; \
792 width = temp; \
793 } \
794 \
795 outstring (string, workend - string); \
796 \
797 PAD (L_(' ')); \
798 break; \
799 } \
800 \
801 LABEL (form_float): \
802 { \
803 /* Floating-point number. This is handled by printf_fp.c. */ \
804 const void *ptr; \
805 int function_done; \
806 \
807 if (fspec == NULL) \
808 { \
809 struct printf_info info = { prec: prec, \
810 width: width, \
811 spec: spec, \
812 is_long_double: is_long_double, \
813 is_short: is_short, \
814 is_long: is_long, \
815 alt: alt, \
816 space: space, \
817 left: left, \
818 showsign: showsign, \
819 group: group, \
820 pad: pad, \
821 extra: 0, \
822 wide: sizeof (CHAR_T) != 1 }; \
823 \
824 if (is_long_double) \
825 the_arg.pa_long_double = va_arg (ap, long double); \
826 else \
827 the_arg.pa_double = va_arg (ap, double); \
828 ptr = (const void *) &the_arg; \
829 \
830 function_done = __printf_fp (s, &info, &ptr); \
831 } \
832 else \
833 { \
834 ptr = (const void *) &args_value[fspec->data_arg]; \
835 \
836 function_done = __printf_fp (s, &fspec->info, &ptr); \
837 } \
838 \
839 if (function_done < 0) \
840 { \
841 /* Error in print handler. */ \
842 done = -1; \
843 goto all_done; \
844 } \
845 \
846 done += function_done; \
847 } \
848 break; \
849 \
850 LABEL (form_floathex): \
851 { \
852 /* Floating point number printed as hexadecimal number. */ \
853 const void *ptr; \
854 int function_done; \
855 \
856 if (fspec == NULL) \
857 { \
858 struct printf_info info = { prec: prec, \
859 width: width, \
860 spec: spec, \
861 is_long_double: is_long_double, \
862 is_short: is_short, \
863 is_long: is_long, \
864 alt: alt, \
865 space: space, \
866 left: left, \
867 showsign: showsign, \
868 group: group, \
869 pad: pad, \
870 extra: 0, \
871 wide: sizeof (CHAR_T) != 1 }; \
872 \
873 if (is_long_double) \
874 the_arg.pa_long_double = va_arg (ap, long double); \
875 else \
876 the_arg.pa_double = va_arg (ap, double); \
877 ptr = (const void *) &the_arg; \
878 \
879 function_done = __printf_fphex (s, &info, &ptr); \
880 } \
881 else \
882 { \
883 ptr = (const void *) &args_value[fspec->data_arg]; \
884 \
885 function_done = __printf_fphex (s, &fspec->info, &ptr); \
886 } \
887 \
888 if (function_done < 0) \
889 { \
890 /* Error in print handler. */ \
891 done = -1; \
892 goto all_done; \
893 } \
894 \
895 done += function_done; \
896 } \
897 break; \
898 \
899 LABEL (form_pointer): \
900 /* Generic pointer. */ \
901 { \
902 const void *ptr; \
903 if (fspec == NULL) \
904 ptr = va_arg (ap, void *); \
905 else \
906 ptr = args_value[fspec->data_arg].pa_pointer; \
907 if (ptr != NULL) \
908 { \
909 /* If the pointer is not NULL, write it as a %#x spec. */ \
910 base = 16; \
911 number.word = (unsigned long int) ptr; \
912 is_negative = 0; \
913 alt = 1; \
914 group = 0; \
915 spec = L_('x'); \
916 goto LABEL (number); \
917 } \
918 else \
919 { \
920 /* Write "(nil)" for a nil pointer. */ \
921 string = (CHAR_T *) L_("(nil)"); \
922 /* Make sure the full string "(nil)" is printed. */ \
923 if (prec < 5) \
924 prec = 5; \
925 is_long = 0; /* This is no wide-char string. */ \
926 goto LABEL (print_string); \
927 } \
928 } \
929 /* NOTREACHED */ \
930 \
931 LABEL (form_number): \
932 /* Answer the count of characters written. */ \
933 if (fspec == NULL) \
934 { \
935 if (is_longlong) \
936 *(long long int *) va_arg (ap, void *) = done; \
937 else if (is_long_num) \
938 *(long int *) va_arg (ap, void *) = done; \
939 else if (is_char) \
940 *(char *) va_arg (ap, void *) = done; \
941 else if (!is_short) \
942 *(int *) va_arg (ap, void *) = done; \
943 else \
944 *(short int *) va_arg (ap, void *) = done; \
945 } \
946 else \
947 if (is_longlong) \
948 *(long long int *) args_value[fspec->data_arg].pa_pointer = done; \
949 else if (is_long_num) \
950 *(long int *) args_value[fspec->data_arg].pa_pointer = done; \
951 else if (is_char) \
952 *(char *) args_value[fspec->data_arg].pa_pointer = done; \
953 else if (!is_short) \
954 *(int *) args_value[fspec->data_arg].pa_pointer = done; \
955 else \
956 *(short int *) args_value[fspec->data_arg].pa_pointer = done; \
957 break; \
958 \
959 LABEL (form_strerror): \
960 /* Print description of error ERRNO. */ \
961 string = \
962 (CHAR_T *) __strerror_r (save_errno, (char *) work_buffer, \
963 sizeof work_buffer); \
964 is_long = 0; /* This is no wide-char string. */ \
965 goto LABEL (print_string)
966
967 #ifdef COMPILE_WPRINTF
968 # define process_string_arg(fspec) \
969 LABEL (form_character): \
970 /* Character. */ \
971 if (is_long) \
972 goto LABEL (form_wcharacter); \
973 --width; /* Account for the character itself. */ \
974 if (!left) \
975 PAD (L' '); \
976 if (fspec == NULL) \
977 outchar (__btowc ((unsigned char) va_arg (ap, int))); /* Promoted. */ \
978 else \
979 outchar (__btowc ((unsigned char) \
980 args_value[fspec->data_arg].pa_char)); \
981 if (left) \
982 PAD (L' '); \
983 break; \
984 \
985 LABEL (form_wcharacter): \
986 { \
987 /* Wide character. */ \
988 --width; \
989 if (!left) \
990 PAD (L' '); \
991 if (fspec == NULL) \
992 outchar (va_arg (ap, wchar_t)); \
993 else \
994 outchar (args_value[fspec->data_arg].pa_wchar); \
995 if (left) \
996 PAD (L' '); \
997 } \
998 break; \
999 \
1000 LABEL (form_string): \
1001 { \
1002 size_t len; \
1003 int string_malloced; \
1004 \
1005 /* The string argument could in fact be `char *' or `wchar_t *'. \
1006 But this should not make a difference here. */ \
1007 if (fspec == NULL) \
1008 string = (CHAR_T *) va_arg (ap, const wchar_t *); \
1009 else \
1010 string = (CHAR_T *) args_value[fspec->data_arg].pa_wstring; \
1011 \
1012 /* Entry point for printing other strings. */ \
1013 LABEL (print_string): \
1014 \
1015 string_malloced = 0; \
1016 if (string == NULL) \
1017 { \
1018 /* Write "(null)" if there's space. */ \
1019 if (prec == -1 \
1020 || prec >= (int) (sizeof (null) / sizeof (null[0])) - 1) \
1021 { \
1022 string = (CHAR_T *) null; \
1023 len = (sizeof (null) / sizeof (null[0])) - 1; \
1024 } \
1025 else \
1026 { \
1027 string = (CHAR_T *) L""; \
1028 len = 0; \
1029 } \
1030 } \
1031 else if (!is_long && spec != L_('S')) \
1032 { \
1033 /* This is complicated. We have to transform the multibyte \
1034 string into a wide character string. */ \
1035 const char *mbs = (const char *) string; \
1036 mbstate_t mbstate; \
1037 \
1038 len = prec != -1 ? (size_t) prec : strlen (mbs); \
1039 \
1040 /* Allocate dynamically an array which definitely is long \
1041 enough for the wide character version. */ \
1042 if (len < 8192) \
1043 string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \
1044 else if ((string = (CHAR_T *) malloc (len * sizeof (wchar_t))) \
1045 == NULL) \
1046 { \
1047 done = -1; \
1048 goto all_done; \
1049 } \
1050 else \
1051 string_malloced = 1; \
1052 \
1053 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1054 len = __mbsrtowcs (string, &mbs, len, &mbstate); \
1055 if (len == (size_t) -1) \
1056 { \
1057 /* Illegal multibyte character. */ \
1058 done = -1; \
1059 goto all_done; \
1060 } \
1061 } \
1062 else \
1063 { \
1064 if (prec != -1) \
1065 /* Search for the end of the string, but don't search past \
1066 the length specified by the precision. */ \
1067 len = __wcsnlen (string, prec); \
1068 else \
1069 len = __wcslen (string); \
1070 } \
1071 \
1072 if ((width -= len) < 0) \
1073 { \
1074 outstring (string, len); \
1075 break; \
1076 } \
1077 \
1078 if (!left) \
1079 PAD (L' '); \
1080 outstring (string, len); \
1081 if (left) \
1082 PAD (L' '); \
1083 if (__builtin_expect (string_malloced, 0)) \
1084 free (string); \
1085 } \
1086 break;
1087 #else
1088 # define process_string_arg(fspec) \
1089 LABEL (form_character): \
1090 /* Character. */ \
1091 if (is_long) \
1092 goto LABEL (form_wcharacter); \
1093 --width; /* Account for the character itself. */ \
1094 if (!left) \
1095 PAD (' '); \
1096 if (fspec == NULL) \
1097 outchar ((unsigned char) va_arg (ap, int)); /* Promoted. */ \
1098 else \
1099 outchar ((unsigned char) args_value[fspec->data_arg].pa_char); \
1100 if (left) \
1101 PAD (' '); \
1102 break; \
1103 \
1104 LABEL (form_wcharacter): \
1105 { \
1106 /* Wide character. */ \
1107 char buf[MB_CUR_MAX]; \
1108 mbstate_t mbstate; \
1109 size_t len; \
1110 \
1111 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1112 len = __wcrtomb (buf, (fspec == NULL ? va_arg (ap, wchar_t) \
1113 : args_value[fspec->data_arg].pa_wchar), \
1114 &mbstate); \
1115 if (len == (size_t) -1) \
1116 { \
1117 /* Something went wron gduring the conversion. Bail out. */ \
1118 done = -1; \
1119 goto all_done; \
1120 } \
1121 width -= len; \
1122 if (!left) \
1123 PAD (' '); \
1124 outstring (buf, len); \
1125 if (left) \
1126 PAD (' '); \
1127 } \
1128 break; \
1129 \
1130 LABEL (form_string): \
1131 { \
1132 size_t len; \
1133 int string_malloced; \
1134 \
1135 /* The string argument could in fact be `char *' or `wchar_t *'. \
1136 But this should not make a difference here. */ \
1137 if (fspec == NULL) \
1138 string = (char *) va_arg (ap, const char *); \
1139 else \
1140 string = (char *) args_value[fspec->data_arg].pa_string; \
1141 \
1142 /* Entry point for printing other strings. */ \
1143 LABEL (print_string): \
1144 \
1145 string_malloced = 0; \
1146 if (string == NULL) \
1147 { \
1148 /* Write "(null)" if there's space. */ \
1149 if (prec == -1 || prec >= (int) sizeof (null) - 1) \
1150 { \
1151 string = (char *) null; \
1152 len = sizeof (null) - 1; \
1153 } \
1154 else \
1155 { \
1156 string = (char *) ""; \
1157 len = 0; \
1158 } \
1159 } \
1160 else if (!is_long && spec != L_('S')) \
1161 { \
1162 if (prec != -1) \
1163 { \
1164 /* Search for the end of the string, but don't search past \
1165 the length (in bytes) specified by the precision. Also \
1166 don't use incomplete characters. */ \
1167 if (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MB_CUR_MAX) == 1) \
1168 len = __strnlen (string, prec); \
1169 else \
1170 { \
1171 /* In case we have a multibyte character set the \
1172 situation is more compilcated. We must not copy \
1173 bytes at the end which form an incomplete character. */\
1174 wchar_t ignore[prec]; \
1175 const char *str2 = string; \
1176 mbstate_t ps; \
1177 \
1178 memset (&ps, '\0', sizeof (ps)); \
1179 if (__mbsnrtowcs (ignore, &str2, prec, prec, &ps) \
1180 == (size_t) -1) \
1181 { \
1182 done = -1; \
1183 goto all_done; \
1184 } \
1185 if (str2 == NULL) \
1186 len = strlen (string); \
1187 else \
1188 len = str2 - string - (ps.__count); \
1189 } \
1190 } \
1191 else \
1192 len = strlen (string); \
1193 } \
1194 else \
1195 { \
1196 const wchar_t *s2 = (const wchar_t *) string; \
1197 mbstate_t mbstate; \
1198 \
1199 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1200 \
1201 if (prec >= 0) \
1202 { \
1203 /* The string `s2' might not be NUL terminated. */ \
1204 if (prec < 32768) \
1205 string = (char *) alloca (prec); \
1206 else if ((string = (char *) malloc (prec)) == NULL) \
1207 { \
1208 done = -1; \
1209 goto all_done; \
1210 } \
1211 else \
1212 string_malloced = 1; \
1213 len = __wcsrtombs (string, &s2, prec, &mbstate); \
1214 } \
1215 else \
1216 { \
1217 len = __wcsrtombs (NULL, &s2, 0, &mbstate); \
1218 if (len != (size_t) -1) \
1219 { \
1220 assert (__mbsinit (&mbstate)); \
1221 s2 = (const wchar_t *) string; \
1222 if (len + 1 < 32768) \
1223 string = (char *) alloca (len + 1); \
1224 else if ((string = (char *) malloc (len + 1)) == NULL) \
1225 { \
1226 done = -1; \
1227 goto all_done; \
1228 } \
1229 else \
1230 string_malloced = 1; \
1231 (void) __wcsrtombs (string, &s2, len + 1, &mbstate); \
1232 } \
1233 } \
1234 \
1235 if (len == (size_t) -1) \
1236 { \
1237 /* Illegal wide-character string. */ \
1238 done = -1; \
1239 goto all_done; \
1240 } \
1241 } \
1242 \
1243 if ((width -= len) < 0) \
1244 { \
1245 outstring (string, len); \
1246 break; \
1247 } \
1248 \
1249 if (!left) \
1250 PAD (' '); \
1251 outstring (string, len); \
1252 if (left) \
1253 PAD (' '); \
1254 if (__builtin_expect (string_malloced, 0)) \
1255 free (string); \
1256 } \
1257 break;
1258 #endif
1259
1260 /* Orient the stream. */
1261 #ifdef ORIENT
1262 ORIENT;
1263 #endif
1264
1265 /* Sanity check of arguments. */
1266 ARGCHECK (s, format);
1267
1268 #ifdef ORIENT
1269 /* Check for correct orientation. */
1270 if (
1271 # ifdef USE_IN_LIBIO
1272 s->_vtable_offset == 0 &&
1273 # endif
1274 _IO_fwide (s, sizeof (CHAR_T) == 1 ? -1 : 1)
1275 != (sizeof (CHAR_T) == 1 ? -1 : 1))
1276 /* The stream is already oriented otherwise. */
1277 return EOF;
1278 #endif
1279
1280 if (UNBUFFERED_P (s))
1281 /* Use a helper function which will allocate a local temporary buffer
1282 for the stream and then call us again. */
1283 return buffered_vfprintf (s, format, ap);
1284
1285 /* Initialize local variables. */
1286 done = 0;
1287 grouping = (const char *) -1;
1288 #ifdef __va_copy
1289 /* This macro will be available soon in gcc's <stdarg.h>. We need it
1290 since on some systems `va_list' is not an integral type. */
1291 __va_copy (ap_save, ap);
1292 #else
1293 ap_save = ap;
1294 #endif
1295 nspecs_done = 0;
1296
1297 #ifdef COMPILE_WPRINTF
1298 /* Find the first format specifier. */
1299 f = lead_str_end = find_spec ((const UCHAR_T *) format);
1300 #else
1301 /* Put state for processing format string in initial state. */
1302 memset (&mbstate, '\0', sizeof (mbstate_t));
1303
1304 /* Find the first format specifier. */
1305 f = lead_str_end = find_spec (format, &mbstate);
1306 #endif
1307
1308 /* Lock stream. */
1309 #ifdef USE_IN_LIBIO
1310 __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile, s);
1311 _IO_flockfile (s);
1312 #else
1313 __libc_cleanup_region_start (1, (void (*) (void *)) &__funlockfile, s);
1314 __flockfile (s);
1315 #endif
1316
1317 /* Write the literal text before the first format. */
1318 outstring ((const UCHAR_T *) format,
1319 lead_str_end - (const UCHAR_T *) format);
1320
1321 /* If we only have to print a simple string, return now. */
1322 if (*f == L_('\0'))
1323 goto all_done;
1324
1325 /* Process whole format string. */
1326 do
1327 {
1328 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined SHARED
1329 # define REF(Name) &&do_##Name - &&do_form_unknown
1330 #else
1331 # define REF(Name) &&do_##Name
1332 #endif
1333 #define LABEL(Name) do_##Name
1334 STEP0_3_TABLE;
1335 STEP4_TABLE;
1336
1337 union printf_arg *args_value; /* This is not used here but ... */
1338 int is_negative; /* Flag for negative number. */
1339 union
1340 {
1341 unsigned long long int longlong;
1342 unsigned long int word;
1343 } number;
1344 int base;
1345 union printf_arg the_arg;
1346 CHAR_T *string; /* Pointer to argument string. */
1347 int alt = 0; /* Alternate format. */
1348 int space = 0; /* Use space prefix if no sign is needed. */
1349 int left = 0; /* Left-justify output. */
1350 int showsign = 0; /* Always begin with plus or minus sign. */
1351 int group = 0; /* Print numbers according grouping rules. */
1352 int is_long_double = 0; /* Argument is long double/ long long int. */
1353 int is_short = 0; /* Argument is short int. */
1354 int is_long = 0; /* Argument is long int. */
1355 int is_char = 0; /* Argument is promoted (unsigned) char. */
1356 int width = 0; /* Width of output; 0 means none specified. */
1357 int prec = -1; /* Precision of output; -1 means none specified. */
1358 /* This flag is set by the 'I' modifier and selects the use of the
1359 `outdigits' as determined by the current locale. */
1360 int use_outdigits = 0;
1361 UCHAR_T pad = L_(' ');/* Padding character. */
1362 CHAR_T spec;
1363
1364 workstart = NULL;
1365 workend = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
1366
1367 /* Get current character in format string. */
1368 JUMP (*++f, step0_jumps);
1369
1370 /* ' ' flag. */
1371 LABEL (flag_space):
1372 space = 1;
1373 JUMP (*++f, step0_jumps);
1374
1375 /* '+' flag. */
1376 LABEL (flag_plus):
1377 showsign = 1;
1378 JUMP (*++f, step0_jumps);
1379
1380 /* The '-' flag. */
1381 LABEL (flag_minus):
1382 left = 1;
1383 pad = L_(' ');
1384 JUMP (*++f, step0_jumps);
1385
1386 /* The '#' flag. */
1387 LABEL (flag_hash):
1388 alt = 1;
1389 JUMP (*++f, step0_jumps);
1390
1391 /* The '0' flag. */
1392 LABEL (flag_zero):
1393 if (!left)
1394 pad = L_('0');
1395 JUMP (*++f, step0_jumps);
1396
1397 /* The '\'' flag. */
1398 LABEL (flag_quote):
1399 group = 1;
1400
1401 if (grouping == (const char *) -1)
1402 {
1403 #ifdef COMPILE_WPRINTF
1404 thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
1405 _NL_NUMERIC_THOUSANDS_SEP_WC);
1406 #else
1407 thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1408 #endif
1409
1410 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1411 if (*grouping == '\0' || *grouping == CHAR_MAX
1412 #ifdef COMPILE_WPRINTF
1413 || thousands_sep == L'\0'
1414 #else
1415 || *thousands_sep == '\0'
1416 #endif
1417 )
1418 grouping = NULL;
1419 }
1420 JUMP (*++f, step0_jumps);
1421
1422 LABEL (flag_i18n):
1423 use_outdigits = 1;
1424 JUMP (*++f, step0_jumps);
1425
1426 /* Get width from argument. */
1427 LABEL (width_asterics):
1428 {
1429 const UCHAR_T *tmp; /* Temporary value. */
1430
1431 tmp = ++f;
1432 if (ISDIGIT (*tmp) && read_int (&tmp) && *tmp == L_('$'))
1433 /* The width comes from a positional parameter. */
1434 goto do_positional;
1435
1436 width = va_arg (ap, int);
1437
1438 /* Negative width means left justified. */
1439 if (width < 0)
1440 {
1441 width = -width;
1442 pad = L_(' ');
1443 left = 1;
1444 }
1445
1446 if (width + 32 >= (int) (sizeof (work_buffer)
1447 / sizeof (work_buffer[0])))
1448 {
1449 /* We have to use a special buffer. The "32" is just a safe
1450 bet for all the output which is not counted in the width. */
1451 if (width < (int) (32768 / sizeof (CHAR_T)))
1452 workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T))
1453 + (width + 32));
1454 else
1455 {
1456 workstart = (CHAR_T *) malloc ((width + 32) * sizeof (CHAR_T));
1457 if (workstart == NULL)
1458 {
1459 done = -1;
1460 goto all_done;
1461 }
1462 workend = workstart + (width + 32);
1463 }
1464 }
1465 }
1466 JUMP (*f, step1_jumps);
1467
1468 /* Given width in format string. */
1469 LABEL (width):
1470 width = read_int (&f);
1471
1472 if (width + 32 >= (int) (sizeof (work_buffer) / sizeof (work_buffer[0])))
1473 {
1474 /* We have to use a special buffer. The "32" is just a safe
1475 bet for all the output which is not counted in the width. */
1476 if (width < (int) (32768 / sizeof (CHAR_T)))
1477 workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T))
1478 + (width + 32));
1479 else
1480 {
1481 workstart = (CHAR_T *) malloc ((width + 32) * sizeof (CHAR_T));
1482 if (workstart == NULL)
1483 {
1484 done = -1;
1485 goto all_done;
1486 }
1487 workend = workstart + (width + 32);
1488 }
1489 }
1490 if (*f == L_('$'))
1491 /* Oh, oh. The argument comes from a positional parameter. */
1492 goto do_positional;
1493 JUMP (*f, step1_jumps);
1494
1495 LABEL (precision):
1496 ++f;
1497 if (*f == L_('*'))
1498 {
1499 const UCHAR_T *tmp; /* Temporary value. */
1500
1501 tmp = ++f;
1502 if (ISDIGIT (*tmp) && read_int (&tmp) > 0 && *tmp == L_('$'))
1503 /* The precision comes from a positional parameter. */
1504 goto do_positional;
1505
1506 prec = va_arg (ap, int);
1507
1508 /* If the precision is negative the precision is omitted. */
1509 if (prec < 0)
1510 prec = -1;
1511 }
1512 else if (ISDIGIT (*f))
1513 prec = read_int (&f);
1514 else
1515 prec = 0;
1516 if (prec > width
1517 && prec + 32 > (int)(sizeof (work_buffer) / sizeof (work_buffer[0])))
1518 {
1519 if (prec < (int) (32768 / sizeof (CHAR_T)))
1520 workend = alloca (prec + 32) + (prec + 32);
1521 else
1522 {
1523 workstart = (CHAR_T *) malloc ((prec + 32) * sizeof (CHAR_T));
1524 if (workstart == NULL)
1525 {
1526 done = -1;
1527 goto all_done;
1528 }
1529 workend = workstart + (prec + 32);
1530 }
1531 }
1532 JUMP (*f, step2_jumps);
1533
1534 /* Process 'h' modifier. There might another 'h' following. */
1535 LABEL (mod_half):
1536 is_short = 1;
1537 JUMP (*++f, step3a_jumps);
1538
1539 /* Process 'hh' modifier. */
1540 LABEL (mod_halfhalf):
1541 is_short = 0;
1542 is_char = 1;
1543 JUMP (*++f, step4_jumps);
1544
1545 /* Process 'l' modifier. There might another 'l' following. */
1546 LABEL (mod_long):
1547 is_long = 1;
1548 JUMP (*++f, step3b_jumps);
1549
1550 /* Process 'L', 'q', or 'll' modifier. No other modifier is
1551 allowed to follow. */
1552 LABEL (mod_longlong):
1553 is_long_double = 1;
1554 is_long = 1;
1555 JUMP (*++f, step4_jumps);
1556
1557 LABEL (mod_size_t):
1558 is_long_double = sizeof (size_t) > sizeof (unsigned long int);
1559 is_long = sizeof (size_t) > sizeof (unsigned int);
1560 JUMP (*++f, step4_jumps);
1561
1562 LABEL (mod_ptrdiff_t):
1563 is_long_double = sizeof (ptrdiff_t) > sizeof (unsigned long int);
1564 is_long = sizeof (ptrdiff_t) > sizeof (unsigned int);
1565 JUMP (*++f, step4_jumps);
1566
1567 LABEL (mod_intmax_t):
1568 is_long_double = sizeof (intmax_t) > sizeof (unsigned long int);
1569 is_long = sizeof (intmax_t) > sizeof (unsigned int);
1570 JUMP (*++f, step4_jumps);
1571
1572 /* Process current format. */
1573 while (1)
1574 {
1575 process_arg (((struct printf_spec *) NULL));
1576 process_string_arg (((struct printf_spec *) NULL));
1577
1578 LABEL (form_unknown):
1579 if (spec == L_('\0'))
1580 {
1581 /* The format string ended before the specifier is complete. */
1582 done = -1;
1583 goto all_done;
1584 }
1585
1586 /* If we are in the fast loop force entering the complicated
1587 one. */
1588 goto do_positional;
1589 }
1590
1591 /* The format is correctly handled. */
1592 ++nspecs_done;
1593
1594 if (__builtin_expect (workstart != NULL, 0))
1595 free (workstart);
1596 workstart = NULL;
1597
1598 /* Look for next format specifier. */
1599 #ifdef COMPILE_WPRINTF
1600 f = find_spec ((end_of_spec = ++f));
1601 #else
1602 f = find_spec ((end_of_spec = ++f), &mbstate);
1603 #endif
1604
1605 /* Write the following constant string. */
1606 outstring (end_of_spec, f - end_of_spec);
1607 }
1608 while (*f != L_('\0'));
1609
1610 /* Unlock stream and return. */
1611 goto all_done;
1612
1613 /* Here starts the more complex loop to handle positional parameters. */
1614 do_positional:
1615 {
1616 /* Array with information about the needed arguments. This has to
1617 be dynamically extensible. */
1618 size_t nspecs = 0;
1619 size_t nspecs_max = 32; /* A more or less arbitrary start value. */
1620 struct printf_spec *specs
1621 = alloca (nspecs_max * sizeof (struct printf_spec));
1622
1623 /* The number of arguments the format string requests. This will
1624 determine the size of the array needed to store the argument
1625 attributes. */
1626 size_t nargs = 0;
1627 int *args_type;
1628 union printf_arg *args_value = NULL;
1629
1630 /* Positional parameters refer to arguments directly. This could
1631 also determine the maximum number of arguments. Track the
1632 maximum number. */
1633 size_t max_ref_arg = 0;
1634
1635 /* Just a counter. */
1636 size_t cnt;
1637
1638
1639 if (grouping == (const char *) -1)
1640 {
1641 #ifdef COMPILE_WPRINTF
1642 thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
1643 _NL_NUMERIC_THOUSANDS_SEP_WC);
1644 #else
1645 thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1646 #endif
1647
1648 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1649 if (*grouping == '\0' || *grouping == CHAR_MAX)
1650 grouping = NULL;
1651 }
1652
1653 for (f = lead_str_end; *f != L_('\0'); f = specs[nspecs++].next_fmt)
1654 {
1655 if (nspecs >= nspecs_max)
1656 {
1657 /* Extend the array of format specifiers. */
1658 struct printf_spec *old = specs;
1659
1660 nspecs_max *= 2;
1661 specs = alloca (nspecs_max * sizeof (struct printf_spec));
1662
1663 if (specs == &old[nspecs])
1664 /* Stack grows up, OLD was the last thing allocated;
1665 extend it. */
1666 nspecs_max += nspecs_max / 2;
1667 else
1668 {
1669 /* Copy the old array's elements to the new space. */
1670 memcpy (specs, old, nspecs * sizeof (struct printf_spec));
1671 if (old == &specs[nspecs])
1672 /* Stack grows down, OLD was just below the new
1673 SPECS. We can use that space when the new space
1674 runs out. */
1675 nspecs_max += nspecs_max / 2;
1676 }
1677 }
1678
1679 /* Parse the format specifier. */
1680 #ifdef COMPILE_WPRINTF
1681 nargs += parse_one_spec (f, nargs, &specs[nspecs], &max_ref_arg);
1682 #else
1683 nargs += parse_one_spec (f, nargs, &specs[nspecs], &max_ref_arg,
1684 &mbstate);
1685 #endif
1686 }
1687
1688 /* Determine the number of arguments the format string consumes. */
1689 nargs = MAX (nargs, max_ref_arg);
1690
1691 /* Allocate memory for the argument descriptions. */
1692 args_type = alloca (nargs * sizeof (int));
1693 memset (args_type, 0, nargs * sizeof (int));
1694 args_value = alloca (nargs * sizeof (union printf_arg));
1695
1696 /* XXX Could do sanity check here: If any element in ARGS_TYPE is
1697 still zero after this loop, format is invalid. For now we
1698 simply use 0 as the value. */
1699
1700 /* Fill in the types of all the arguments. */
1701 for (cnt = 0; cnt < nspecs; ++cnt)
1702 {
1703 /* If the width is determined by an argument this is an int. */
1704 if (specs[cnt].width_arg != -1)
1705 args_type[specs[cnt].width_arg] = PA_INT;
1706
1707 /* If the precision is determined by an argument this is an int. */
1708 if (specs[cnt].prec_arg != -1)
1709 args_type[specs[cnt].prec_arg] = PA_INT;
1710
1711 switch (specs[cnt].ndata_args)
1712 {
1713 case 0: /* No arguments. */
1714 break;
1715 case 1: /* One argument; we already have the type. */
1716 args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
1717 break;
1718 default:
1719 /* We have more than one argument for this format spec.
1720 We must call the arginfo function again to determine
1721 all the types. */
1722 (void) (*__printf_arginfo_table[specs[cnt].info.spec])
1723 (&specs[cnt].info,
1724 specs[cnt].ndata_args, &args_type[specs[cnt].data_arg]);
1725 break;
1726 }
1727 }
1728
1729 /* Now we know all the types and the order. Fill in the argument
1730 values. */
1731 for (cnt = 0; cnt < nargs; ++cnt)
1732 switch (args_type[cnt])
1733 {
1734 #define T(tag, mem, type) \
1735 case tag: \
1736 args_value[cnt].mem = va_arg (ap_save, type); \
1737 break
1738
1739 T (PA_CHAR, pa_char, int); /* Promoted. */
1740 T (PA_WCHAR, pa_wchar, wint_t);
1741 T (PA_INT|PA_FLAG_SHORT, pa_short_int, int); /* Promoted. */
1742 T (PA_INT, pa_int, int);
1743 T (PA_INT|PA_FLAG_LONG, pa_long_int, long int);
1744 T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
1745 T (PA_FLOAT, pa_float, double); /* Promoted. */
1746 T (PA_DOUBLE, pa_double, double);
1747 T (PA_DOUBLE|PA_FLAG_LONG_DOUBLE, pa_long_double, long double);
1748 T (PA_STRING, pa_string, const char *);
1749 T (PA_WSTRING, pa_wstring, const wchar_t *);
1750 T (PA_POINTER, pa_pointer, void *);
1751 #undef T
1752 default:
1753 if ((args_type[cnt] & PA_FLAG_PTR) != 0)
1754 args_value[cnt].pa_pointer = va_arg (ap_save, void *);
1755 else
1756 args_value[cnt].pa_long_double = 0.0;
1757 break;
1758 }
1759
1760 /* Now walk through all format specifiers and process them. */
1761 for (; (size_t) nspecs_done < nspecs; ++nspecs_done)
1762 {
1763 #undef REF
1764 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined SHARED
1765 # define REF(Name) &&do2_##Name - &&do_form_unknown
1766 #else
1767 # define REF(Name) &&do2_##Name
1768 #endif
1769 #undef LABEL
1770 #define LABEL(Name) do2_##Name
1771 STEP4_TABLE;
1772
1773 int is_negative;
1774 union
1775 {
1776 unsigned long long int longlong;
1777 unsigned long int word;
1778 } number;
1779 int base;
1780 union printf_arg the_arg;
1781 CHAR_T *string; /* Pointer to argument string. */
1782
1783 /* Fill variables from values in struct. */
1784 int alt = specs[nspecs_done].info.alt;
1785 int space = specs[nspecs_done].info.space;
1786 int left = specs[nspecs_done].info.left;
1787 int showsign = specs[nspecs_done].info.showsign;
1788 int group = specs[nspecs_done].info.group;
1789 int is_long_double = specs[nspecs_done].info.is_long_double;
1790 int is_short = specs[nspecs_done].info.is_short;
1791 int is_char = specs[nspecs_done].info.is_char;
1792 int is_long = specs[nspecs_done].info.is_long;
1793 int width = specs[nspecs_done].info.width;
1794 int prec = specs[nspecs_done].info.prec;
1795 int use_outdigits = specs[nspecs_done].info.i18n;
1796 char pad = specs[nspecs_done].info.pad;
1797 CHAR_T spec = specs[nspecs_done].info.spec;
1798 CHAR_T *workstart = NULL;
1799
1800 /* Fill in last information. */
1801 if (specs[nspecs_done].width_arg != -1)
1802 {
1803 /* Extract the field width from an argument. */
1804 specs[nspecs_done].info.width =
1805 args_value[specs[nspecs_done].width_arg].pa_int;
1806
1807 if (specs[nspecs_done].info.width < 0)
1808 /* If the width value is negative left justification is
1809 selected and the value is taken as being positive. */
1810 {
1811 specs[nspecs_done].info.width *= -1;
1812 left = specs[nspecs_done].info.left = 1;
1813 }
1814 width = specs[nspecs_done].info.width;
1815 }
1816
1817 if (specs[nspecs_done].prec_arg != -1)
1818 {
1819 /* Extract the precision from an argument. */
1820 specs[nspecs_done].info.prec =
1821 args_value[specs[nspecs_done].prec_arg].pa_int;
1822
1823 if (specs[nspecs_done].info.prec < 0)
1824 /* If the precision is negative the precision is
1825 omitted. */
1826 specs[nspecs_done].info.prec = -1;
1827
1828 prec = specs[nspecs_done].info.prec;
1829 }
1830
1831 /* Maybe the buffer is too small. */
1832 if (MAX (prec, width) + 32 > (int) (sizeof (work_buffer)
1833 / sizeof (CHAR_T)))
1834 {
1835 if (MAX (prec, width) < (int) (32768 / sizeof (CHAR_T)))
1836 workend = ((CHAR_T *) alloca ((MAX (prec, width) + 32)
1837 * sizeof (CHAR_T))
1838 + (MAX (prec, width) + 32));
1839 else
1840 {
1841 workstart = (CHAR_T *) malloc ((MAX (prec, width) + 32)
1842 * sizeof (CHAR_T));
1843 workend = workstart + (MAX (prec, width) + 32);
1844 }
1845 }
1846
1847 /* Process format specifiers. */
1848 while (1)
1849 {
1850 JUMP (spec, step4_jumps);
1851
1852 process_arg ((&specs[nspecs_done]));
1853 process_string_arg ((&specs[nspecs_done]));
1854
1855 LABEL (form_unknown):
1856 {
1857 extern printf_function **__printf_function_table;
1858 int function_done;
1859 printf_function *function;
1860 unsigned int i;
1861 const void **ptr;
1862
1863 function =
1864 (__printf_function_table == NULL ? NULL :
1865 __printf_function_table[specs[nspecs_done].info.spec]);
1866
1867 if (function == NULL)
1868 function = &printf_unknown;
1869
1870 ptr = alloca (specs[nspecs_done].ndata_args
1871 * sizeof (const void *));
1872
1873 /* Fill in an array of pointers to the argument values. */
1874 for (i = 0; i < specs[nspecs_done].ndata_args; ++i)
1875 ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
1876
1877 /* Call the function. */
1878 function_done = (*function) (s, &specs[nspecs_done].info, ptr);
1879
1880 /* If an error occurred we don't have information about #
1881 of chars. */
1882 if (function_done < 0)
1883 {
1884 done = -1;
1885 goto all_done;
1886 }
1887
1888 done += function_done;
1889 }
1890 break;
1891 }
1892
1893 if (__builtin_expect (workstart != NULL, 0))
1894 free (workstart);
1895 workstart = NULL;
1896
1897 /* Write the following constant string. */
1898 outstring (specs[nspecs_done].end_of_fmt,
1899 specs[nspecs_done].next_fmt
1900 - specs[nspecs_done].end_of_fmt);
1901 }
1902 }
1903
1904 all_done:
1905 if (__builtin_expect (workstart != NULL, 0))
1906 free (workstart);
1907 /* Unlock the stream. */
1908 #ifdef USE_IN_LIBIO
1909 _IO_funlockfile (s);
1910 #else
1911 __funlockfile (s);
1912 #endif
1913 __libc_cleanup_region_end (0);
1914
1915 return done;
1916 }
1917 \f
1918 /* Handle an unknown format specifier. This prints out a canonicalized
1919 representation of the format spec itself. */
1920 static int
1921 printf_unknown (FILE *s, const struct printf_info *info,
1922 const void *const *args)
1923
1924 {
1925 int done = 0;
1926 CHAR_T work_buffer[MAX (info->width, info->spec) + 32];
1927 CHAR_T *const workend
1928 = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
1929 register CHAR_T *w;
1930
1931 outchar (L_('%'));
1932
1933 if (info->alt)
1934 outchar (L_('#'));
1935 if (info->group)
1936 outchar (L_('\''));
1937 if (info->showsign)
1938 outchar (L_('+'));
1939 else if (info->space)
1940 outchar (L_(' '));
1941 if (info->left)
1942 outchar (L_('-'));
1943 if (info->pad == L_('0'))
1944 outchar (L_('0'));
1945 if (info->i18n)
1946 outchar (L_('I'));
1947
1948 if (info->width != 0)
1949 {
1950 w = _itoa_word (info->width, workend, 10, 0);
1951 while (w < workend)
1952 outchar (*w++);
1953 }
1954
1955 if (info->prec != -1)
1956 {
1957 outchar (L_('.'));
1958 w = _itoa_word (info->prec, workend, 10, 0);
1959 while (w < workend)
1960 outchar (*w++);
1961 }
1962
1963 if (info->spec != L_('\0'))
1964 outchar (info->spec);
1965
1966 all_done:
1967 return done;
1968 }
1969 \f
1970 /* Group the digits according to the grouping rules of the current locale.
1971 The interpretation of GROUPING is as in `struct lconv' from <locale.h>. */
1972 static CHAR_T *
1973 internal_function
1974 group_number (CHAR_T *w, CHAR_T *rear_ptr, const char *grouping,
1975 #ifdef COMPILE_WPRINTF
1976 wchar_t thousands_sep
1977 #else
1978 const char *thousands_sep
1979 #endif
1980 )
1981 {
1982 int len;
1983 CHAR_T *src, *s;
1984 #ifndef COMPILE_WPRINTF
1985 int tlen = strlen (thousands_sep);
1986 #endif
1987
1988 /* We treat all negative values like CHAR_MAX. */
1989
1990 if (*grouping == CHAR_MAX || *grouping <= 0)
1991 /* No grouping should be done. */
1992 return w;
1993
1994 len = *grouping;
1995
1996 /* Copy existing string so that nothing gets overwritten. */
1997 src = (CHAR_T *) alloca ((rear_ptr - w) * sizeof (CHAR_T));
1998 s = (CHAR_T *) __mempcpy (src, w,
1999 (rear_ptr - w) * sizeof (CHAR_T));
2000 w = rear_ptr;
2001
2002 /* Process all characters in the string. */
2003 while (s > src)
2004 {
2005 *--w = *--s;
2006
2007 if (--len == 0 && s > src)
2008 {
2009 /* A new group begins. */
2010 #ifdef COMPILE_WPRINTF
2011 *--w = thousands_sep;
2012 #else
2013 int cnt = tlen;
2014 do
2015 *--w = thousands_sep[--cnt];
2016 while (cnt > 0);
2017 #endif
2018
2019 len = *grouping++;
2020 if (*grouping == '\0')
2021 /* The previous grouping repeats ad infinitum. */
2022 --grouping;
2023 else if (*grouping == CHAR_MAX
2024 #if CHAR_MIN < 0
2025 || *grouping < 0
2026 #endif
2027 )
2028 {
2029 /* No further grouping to be done.
2030 Copy the rest of the number. */
2031 do
2032 *--w = *--s;
2033 while (s > src);
2034 break;
2035 }
2036 }
2037 }
2038 return w;
2039 }
2040 \f
2041 #ifdef USE_IN_LIBIO
2042 /* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
2043 struct helper_file
2044 {
2045 struct _IO_FILE_plus _f;
2046 #ifdef COMPILE_WPRINTF
2047 struct _IO_wide_data _wide_data;
2048 #endif
2049 _IO_FILE *_put_stream;
2050 #ifdef _IO_MTSAFE_IO
2051 _IO_lock_t lock;
2052 #endif
2053 };
2054
2055 static int
2056 _IO_helper_overflow (_IO_FILE *s, int c)
2057 {
2058 _IO_FILE *target = ((struct helper_file*) s)->_put_stream;
2059 #ifdef COMPILE_WPRINTF
2060 int used = s->_wide_data->_IO_write_ptr - s->_wide_data->_IO_write_base;
2061 if (used)
2062 {
2063 _IO_size_t written = _IO_sputn (target, s->_wide_data->_IO_write_base,
2064 used);
2065 s->_wide_data->_IO_write_ptr -= written;
2066 }
2067 #else
2068 int used = s->_IO_write_ptr - s->_IO_write_base;
2069 if (used)
2070 {
2071 _IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
2072 s->_IO_write_ptr -= written;
2073 }
2074 #endif
2075 return PUTC (c, s);
2076 }
2077
2078 #ifdef COMPILE_WPRINTF
2079 static const struct _IO_jump_t _IO_helper_jumps =
2080 {
2081 JUMP_INIT_DUMMY,
2082 JUMP_INIT (finish, INTUSE(_IO_wdefault_finish)),
2083 JUMP_INIT (overflow, _IO_helper_overflow),
2084 JUMP_INIT (underflow, _IO_default_underflow),
2085 JUMP_INIT (uflow, INTUSE(_IO_default_uflow)),
2086 JUMP_INIT (pbackfail, (_IO_pbackfail_t) INTUSE(_IO_wdefault_pbackfail)),
2087 JUMP_INIT (xsputn, INTUSE(_IO_wdefault_xsputn)),
2088 JUMP_INIT (xsgetn, INTUSE(_IO_wdefault_xsgetn)),
2089 JUMP_INIT (seekoff, _IO_default_seekoff),
2090 JUMP_INIT (seekpos, _IO_default_seekpos),
2091 JUMP_INIT (setbuf, _IO_default_setbuf),
2092 JUMP_INIT (sync, _IO_default_sync),
2093 JUMP_INIT (doallocate, INTUSE(_IO_wdefault_doallocate)),
2094 JUMP_INIT (read, _IO_default_read),
2095 JUMP_INIT (write, _IO_default_write),
2096 JUMP_INIT (seek, _IO_default_seek),
2097 JUMP_INIT (close, _IO_default_close),
2098 JUMP_INIT (stat, _IO_default_stat)
2099 };
2100 #else
2101 static const struct _IO_jump_t _IO_helper_jumps =
2102 {
2103 JUMP_INIT_DUMMY,
2104 JUMP_INIT (finish, INTUSE(_IO_default_finish)),
2105 JUMP_INIT (overflow, _IO_helper_overflow),
2106 JUMP_INIT (underflow, _IO_default_underflow),
2107 JUMP_INIT (uflow, INTUSE(_IO_default_uflow)),
2108 JUMP_INIT (pbackfail, INTUSE(_IO_default_pbackfail)),
2109 JUMP_INIT (xsputn, INTUSE(_IO_default_xsputn)),
2110 JUMP_INIT (xsgetn, INTUSE(_IO_default_xsgetn)),
2111 JUMP_INIT (seekoff, _IO_default_seekoff),
2112 JUMP_INIT (seekpos, _IO_default_seekpos),
2113 JUMP_INIT (setbuf, _IO_default_setbuf),
2114 JUMP_INIT (sync, _IO_default_sync),
2115 JUMP_INIT (doallocate, INTUSE(_IO_default_doallocate)),
2116 JUMP_INIT (read, _IO_default_read),
2117 JUMP_INIT (write, _IO_default_write),
2118 JUMP_INIT (seek, _IO_default_seek),
2119 JUMP_INIT (close, _IO_default_close),
2120 JUMP_INIT (stat, _IO_default_stat)
2121 };
2122 #endif
2123
2124 static int
2125 internal_function
2126 buffered_vfprintf (register _IO_FILE *s, const CHAR_T *format,
2127 _IO_va_list args)
2128 {
2129 CHAR_T buf[_IO_BUFSIZ];
2130 struct helper_file helper;
2131 register _IO_FILE *hp = (_IO_FILE *) &helper._f;
2132 int result, to_flush;
2133
2134 /* Orient the stream. */
2135 #ifdef ORIENT
2136 ORIENT;
2137 #endif
2138
2139 /* Initialize helper. */
2140 helper._put_stream = s;
2141 #ifdef COMPILE_WPRINTF
2142 hp->_wide_data = &helper._wide_data;
2143 _IO_wsetp (hp, buf, buf + sizeof buf / sizeof (CHAR_T));
2144 hp->_mode = 1;
2145 #else
2146 _IO_setp (hp, buf, buf + sizeof buf);
2147 hp->_mode = -1;
2148 #endif
2149 hp->_IO_file_flags = _IO_MAGIC|_IO_NO_READS|_IO_USER_LOCK;
2150 #if _IO_JUMPS_OFFSET
2151 hp->_vtable_offset = 0;
2152 #endif
2153 #ifdef _IO_MTSAFE_IO
2154 hp->_lock = NULL;
2155 #endif
2156 _IO_JUMPS (&helper._f) = (struct _IO_jump_t *) &_IO_helper_jumps;
2157
2158 /* Now print to helper instead. */
2159 #if defined USE_IN_LIBIO && !defined COMPILE_WPRINTF
2160 result = INTUSE(_IO_vfprintf) (hp, format, args);
2161 #else
2162 result = vfprintf (hp, format, args);
2163 #endif
2164
2165 /* Lock stream. */
2166 __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile, s);
2167 _IO_flockfile (s);
2168
2169 /* Now flush anything from the helper to the S. */
2170 #ifdef COMPILE_WPRINTF
2171 if ((to_flush = (hp->_wide_data->_IO_write_ptr
2172 - hp->_wide_data->_IO_write_base)) > 0)
2173 {
2174 if ((int) _IO_sputn (s, hp->_wide_data->_IO_write_base, to_flush)
2175 != to_flush)
2176 result = -1;
2177 }
2178 #else
2179 if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
2180 {
2181 if ((int) _IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
2182 result = -1;
2183 }
2184 #endif
2185
2186 /* Unlock the stream. */
2187 _IO_funlockfile (s);
2188 __libc_cleanup_region_end (0);
2189
2190 return result;
2191 }
2192
2193 #else /* !USE_IN_LIBIO */
2194
2195 static int
2196 internal_function
2197 buffered_vfprintf (register FILE *s, const CHAR_T *format, va_list args)
2198 {
2199 char buf[BUFSIZ];
2200 int result;
2201
2202 /* Orient the stream. */
2203 #ifdef ORIENT
2204 ORIENT;
2205 #endif
2206
2207 s->__bufp = s->__buffer = buf;
2208 s->__bufsize = sizeof buf;
2209 s->__put_limit = s->__buffer + s->__bufsize;
2210 s->__get_limit = s->__buffer;
2211
2212 /* Now use buffer to print. */
2213 result = vfprintf (s, format, args);
2214
2215 if (fflush (s) == EOF)
2216 result = -1;
2217 s->__buffer = s->__bufp = s->__get_limit = s->__put_limit = NULL;
2218 s->__bufsize = 0;
2219
2220 return result;
2221 }
2222 \f
2223 /* Pads string with given number of a specified character.
2224 This code is taken from iopadn.c of the GNU I/O library. */
2225 #define PADSIZE 16
2226 static const CHAR_T blanks[PADSIZE] =
2227 { L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '),
2228 L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' ') };
2229 static const CHAR_T zeroes[PADSIZE] =
2230 { L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'),
2231 L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0') };
2232
2233 ssize_t
2234 #ifndef COMPILE_WPRINTF
2235 __printf_pad (FILE *s, char pad, size_t count)
2236 #else
2237 __wprintf_pad (FILE *s, wchar_t pad, size_t count)
2238 #endif
2239 {
2240 const CHAR_T *padptr;
2241 register size_t i;
2242
2243 padptr = pad == L_(' ') ? blanks : zeroes;
2244
2245 for (i = count; i >= PADSIZE; i -= PADSIZE)
2246 if (PUT (s, padptr, PADSIZE) != PADSIZE)
2247 return -1;
2248 if (i > 0)
2249 if (PUT (s, padptr, i) != i)
2250 return -1;
2251
2252 return count;
2253 }
2254 #undef PADSIZE
2255 #endif /* USE_IN_LIBIO */
2256
2257 #ifdef USE_IN_LIBIO
2258 # undef vfprintf
2259 # ifdef strong_alias
2260 /* This is for glibc. */
2261 # ifdef COMPILE_WPRINTF
2262 strong_alias (_IO_vfwprintf, __vfwprintf);
2263 weak_alias (_IO_vfwprintf, vfwprintf);
2264 # else
2265 strong_alias (_IO_vfprintf, vfprintf);
2266 libc_hidden_def (vfprintf)
2267 INTDEF(_IO_vfprintf)
2268 # endif
2269 # else
2270 # if defined __ELF__ || defined __GNU_LIBRARY__
2271 # include <gnu-stabs.h>
2272 # ifdef weak_alias
2273 # ifdef COMPILE_WPRINTF
2274 weak_alias (_IO_vfwprintf, vfwprintf);
2275 # else
2276 weak_alias (_IO_vfprintf, vfprintf);
2277 # endif
2278 # endif
2279 # endif
2280 # endif
2281 #endif
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