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[glibc.git] / stdio-common / vfprintf.c
blobd4145a72794c77e0df559004095db2ea42fd426e
1 /* Copyright (C) 1991,92,93,94,95,96,97,98,99 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 Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 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 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 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 <errno.h>
26 #include <wchar.h>
27 #include <bits/libc-lock.h>
28 #include <sys/param.h>
29 #include "_itoa.h"
30 #include <locale/localeinfo.h>
31
32 /* This code is shared between the standard stdio implementation found
33 in GNU C library and the libio implementation originally found in
34 GNU libg++.
35
36 Beside this it is also shared between the normal and wide character
37 implementation as defined in ISO/IEC 9899:1990/Amendment 1:1995. */
38
39
40 #ifdef USE_IN_LIBIO
41 /* This code is for use in libio. */
42 # include <libioP.h>
43 # define FILE _IO_FILE
44 # undef va_list
45 # define va_list _IO_va_list
46 # undef BUFSIZ
47 # define BUFSIZ _IO_BUFSIZ
48 # define ARGCHECK(S, Format) \
49 do \
50 { \
51 /* Check file argument for consistence. */ \
52 CHECK_FILE (S, -1); \
53 if (S->_flags & _IO_NO_WRITES) \
54 { \
55 __set_errno (EBADF); \
56 return -1; \
57 } \
58 if (Format == NULL) \
59 { \
60 MAYBE_SET_EINVAL; \
61 return -1; \
62 } \
63 } while (0)
64 # define UNBUFFERED_P(S) ((S)->_IO_file_flags & _IO_UNBUFFERED)
65
66 # ifndef COMPILE_WPRINTF
67 # define vfprintf _IO_vfprintf
68 # define CHAR_T char
69 # define UCHAR_T unsigned char
70 # define INT_T int
71 # define L_(Str) Str
72 # define ISDIGIT(Ch) isdigit (Ch)
73
74 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
75 # define PAD(Padchar) \
76 if (width > 0) \
77 done += _IO_padn (s, (Padchar), width)
78 # define PUTC(C, F) _IO_putc_unlocked (C, F)
79 # define ORIENT if (s->_vtable_offset == 0 && _IO_fwide (s, -1) != -1)\
80 return -1
81 # else
82 # include "_itowa.h"
83
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) iswdigit (Ch)
91
92 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
93 # define PAD(Padchar) \
94 if (width > 0) \
95 done += _IO_wpadn (s, (Padchar), width)
96 # define PUTC(C, F) _IO_putwc_unlocked (C, F)
97 # define ORIENT if (_IO_fwide (s, 1) != 1) return -1
98
99 # define _itoa(Val, Buf, Base, Case) _itowa (Val, Buf, Base, Case)
100 # define _itoa_word(Val, Buf, Base, Case) _itowa_word (Val, Buf, Base, Case)
101 # undef EOF
102 # define EOF WEOF
103 # endif
104 #else /* ! USE_IN_LIBIO */
105 /* This code is for use in the GNU C library. */
106 # include <stdio.h>
107 # define ARGCHECK(S, Format) \
108 do \
109 { \
110 /* Check file argument for consistence. */ \
111 if (!__validfp (S) || !S->__mode.__write) \
112 { \
113 __set_errno (EBADF); \
114 return -1; \
115 } \
116 if (Format == NULL) \
117 { \
118 __set_errno (EINVAL); \
119 return -1; \
120 } \
121 if (!S->__seen) \
122 { \
123 if (__flshfp (S, EOF) == EOF) \
124 return -1; \
125 } \
126 } \
127 while (0)
128 # define UNBUFFERED_P(s) ((s)->__buffer == NULL)
129
130 # define CHAR_T char
131 # define UCHAR_T unsigned char
132 # define INT_T int
133 # define L_(Str) Str
134 # define ISDIGIT(Ch) isdigit (Ch)
135
136 # define PUT(F, S, N) fwrite (S, 1, N, F)
137 ssize_t __printf_pad __P ((FILE *, char pad, size_t n));
138 # define PAD(Padchar) \
139 if (width > 0) \
140 { ssize_t __res = __printf_pad (s, (Padchar), width); \
141 if (__res == -1) \
142 { \
143 done = -1; \
144 goto all_done; \
145 } \
146 done += __res; }
147 # define PUTC(C, F) putc (C, F)
148
149 /* XXX These declarations should go as soon as the stdio header files
150 have these prototypes. */
151 extern void __flockfile (FILE *);
152 extern void __funlockfile (FILE *);
153 #endif /* USE_IN_LIBIO */
154
155 /* Include the shared code for parsing the format string. */
156 #include "printf-parse.h"
157
158
159 #define outchar(Ch) \
160 do \
161 { \
162 register const INT_T outc = (Ch); \
163 if (PUTC (outc, s) == EOF) \
164 { \
165 done = -1; \
166 goto all_done; \
167 } \
168 else \
169 ++done; \
170 } \
171 while (0)
172
173 #define outstring(String, Len) \
174 do \
175 { \
176 if ((size_t) PUT (s, (String), (Len)) != (size_t) (Len)) \
177 { \
178 done = -1; \
179 goto all_done; \
180 } \
181 done += (Len); \
182 } \
183 while (0)
184
185 /* For handling long_double and longlong we use the same flag. If
186 `long' and `long long' are effectively the same type define it to
187 zero. */
188 #if LONG_MAX == LONG_LONG_MAX
189 # define is_longlong 0
190 #else
191 # define is_longlong is_long_double
192 #endif
193
194 /* If `long' and `int' is effectively the same type we don't have to
195 handle `long separately. */
196 #if INT_MAX == LONG_MAX
197 # define is_long_num 0
198 #else
199 # define is_long_num is_long
200 #endif
201
202
203 /* Global variables. */
204 static const CHAR_T null[] = L_("(null)");
205
206
207 /* Helper function to provide temporary buffering for unbuffered streams. */
208 static int buffered_vfprintf __P ((FILE *stream, const CHAR_T *fmt, va_list))
209 internal_function;
210
211 /* Handle unknown format specifier. */
212 static int printf_unknown __P ((FILE *, const struct printf_info *,
213 const void *const *));
214
215 /* Group digits of number string. */
216 static CHAR_T *group_number __P ((CHAR_T *, CHAR_T *, const char *, wchar_t))
217 internal_function;
218
219
220 /* The function itself. */
221 int
222 vfprintf (FILE *s, const CHAR_T *format, va_list ap)
223 {
224 /* The character used as thousands separator. */
225 wchar_t thousands_sep;
226
227 /* The string describing the size of groups of digits. */
228 const char *grouping;
229
230 /* Place to accumulate the result. */
231 int done;
232
233 /* Current character in format string. */
234 const UCHAR_T *f;
235
236 /* End of leading constant string. */
237 const UCHAR_T *lead_str_end;
238
239 /* Points to next format specifier. */
240 const UCHAR_T *end_of_spec;
241
242 /* Buffer intermediate results. */
243 CHAR_T work_buffer[1000];
244 CHAR_T *workend;
245
246 /* State for restartable multibyte character handling functions. */
247 #ifndef COMPILE_WPRINTF
248 mbstate_t mbstate;
249 #endif
250
251 /* We have to save the original argument pointer. */
252 va_list ap_save;
253
254 /* Count number of specifiers we already processed. */
255 int nspecs_done;
256
257 /* For the %m format we may need the current `errno' value. */
258 int save_errno = errno;
259
260
261 /* This table maps a character into a number representing a
262 class. In each step there is a destination label for each
263 class. */
264 static const int jump_table[] =
265 {
266 /* ' ' */ 1, 0, 0, /* '#' */ 4,
267 0, /* '%' */ 14, 0, /* '\''*/ 6,
268 0, 0, /* '*' */ 7, /* '+' */ 2,
269 0, /* '-' */ 3, /* '.' */ 9, 0,
270 /* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
271 /* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
272 /* '8' */ 8, /* '9' */ 8, 0, 0,
273 0, 0, 0, 0,
274 0, /* 'A' */ 26, 0, /* 'C' */ 25,
275 0, /* 'E' */ 19, 0, /* 'G' */ 19,
276 0, 0, 0, 0,
277 /* 'L' */ 12, 0, 0, 0,
278 0, 0, 0, /* 'S' */ 21,
279 0, 0, 0, 0,
280 /* 'X' */ 18, 0, /* 'Z' */ 13, 0,
281 0, 0, 0, 0,
282 0, /* 'a' */ 26, 0, /* 'c' */ 20,
283 /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
284 /* 'h' */ 10, /* 'i' */ 15, /* 'j' */ 28, 0,
285 /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
286 /* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
287 /* 't' */ 27, /* 'u' */ 16, 0, 0,
288 /* 'x' */ 18, 0, /* 'z' */ 13
289 };
290
291 #define NOT_IN_JUMP_RANGE(Ch) ((Ch) < L_(' ') || (Ch) > L_('z'))
292 #define CHAR_CLASS(Ch) (jump_table[(INT_T) (Ch) - L_(' ')])
293 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined PIC
294 /* 'int' is enough and it saves some space on 64 bit systems. */
295 # define JUMP_TABLE_TYPE const int
296 # define JUMP(ChExpr, table) \
297 do \
298 { \
299 int offset; \
300 void *ptr; \
301 spec = (ChExpr); \
302 offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
303 : table[CHAR_CLASS (spec)]; \
304 ptr = &&do_form_unknown + offset; \
305 goto *ptr; \
306 } \
307 while (0)
308 #else
309 # define JUMP_TABLE_TYPE const void *const
310 # define JUMP(ChExpr, table) \
311 do \
312 { \
313 const void *ptr; \
314 spec = (ChExpr); \
315 ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
316 : table[CHAR_CLASS (spec)]; \
317 goto *ptr; \
318 } \
319 while (0)
320 #endif
321
322 #define STEP0_3_TABLE \
323 /* Step 0: at the beginning. */ \
324 static JUMP_TABLE_TYPE step0_jumps[29] = \
325 { \
326 REF (form_unknown), \
327 REF (flag_space), /* for ' ' */ \
328 REF (flag_plus), /* for '+' */ \
329 REF (flag_minus), /* for '-' */ \
330 REF (flag_hash), /* for '<hash>' */ \
331 REF (flag_zero), /* for '0' */ \
332 REF (flag_quote), /* for '\'' */ \
333 REF (width_asterics), /* for '*' */ \
334 REF (width), /* for '1'...'9' */ \
335 REF (precision), /* for '.' */ \
336 REF (mod_half), /* for 'h' */ \
337 REF (mod_long), /* for 'l' */ \
338 REF (mod_longlong), /* for 'L', 'q' */ \
339 REF (mod_size_t), /* for 'z', 'Z' */ \
340 REF (form_percent), /* for '%' */ \
341 REF (form_integer), /* for 'd', 'i' */ \
342 REF (form_unsigned), /* for 'u' */ \
343 REF (form_octal), /* for 'o' */ \
344 REF (form_hexa), /* for 'X', 'x' */ \
345 REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
346 REF (form_character), /* for 'c' */ \
347 REF (form_string), /* for 's', 'S' */ \
348 REF (form_pointer), /* for 'p' */ \
349 REF (form_number), /* for 'n' */ \
350 REF (form_strerror), /* for 'm' */ \
351 REF (form_wcharacter), /* for 'C' */ \
352 REF (form_floathex), /* for 'A', 'a' */ \
353 REF (mod_ptrdiff_t), /* for 't' */ \
354 REF (mod_intmax_t), /* for 'j' */ \
355 }; \
356 /* Step 1: after processing width. */ \
357 static JUMP_TABLE_TYPE step1_jumps[29] = \
358 { \
359 REF (form_unknown), \
360 REF (form_unknown), /* for ' ' */ \
361 REF (form_unknown), /* for '+' */ \
362 REF (form_unknown), /* for '-' */ \
363 REF (form_unknown), /* for '<hash>' */ \
364 REF (form_unknown), /* for '0' */ \
365 REF (form_unknown), /* for '\'' */ \
366 REF (form_unknown), /* for '*' */ \
367 REF (form_unknown), /* for '1'...'9' */ \
368 REF (precision), /* for '.' */ \
369 REF (mod_half), /* for 'h' */ \
370 REF (mod_long), /* for 'l' */ \
371 REF (mod_longlong), /* for 'L', 'q' */ \
372 REF (mod_size_t), /* for 'z', 'Z' */ \
373 REF (form_percent), /* for '%' */ \
374 REF (form_integer), /* for 'd', 'i' */ \
375 REF (form_unsigned), /* for 'u' */ \
376 REF (form_octal), /* for 'o' */ \
377 REF (form_hexa), /* for 'X', 'x' */ \
378 REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
379 REF (form_character), /* for 'c' */ \
380 REF (form_string), /* for 's', 'S' */ \
381 REF (form_pointer), /* for 'p' */ \
382 REF (form_number), /* for 'n' */ \
383 REF (form_strerror), /* for 'm' */ \
384 REF (form_wcharacter), /* for 'C' */ \
385 REF (form_floathex), /* for 'A', 'a' */ \
386 REF (mod_ptrdiff_t), /* for 't' */ \
387 REF (mod_intmax_t) /* for 'j' */ \
388 }; \
389 /* Step 2: after processing precision. */ \
390 static JUMP_TABLE_TYPE step2_jumps[29] = \
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_half), /* for 'h' */ \
403 REF (mod_long), /* for 'l' */ \
404 REF (mod_longlong), /* for 'L', 'q' */ \
405 REF (mod_size_t), /* 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_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
412 REF (form_character), /* for 'c' */ \
413 REF (form_string), /* for 's', 'S' */ \
414 REF (form_pointer), /* for 'p' */ \
415 REF (form_number), /* for 'n' */ \
416 REF (form_strerror), /* for 'm' */ \
417 REF (form_wcharacter), /* for 'C' */ \
418 REF (form_floathex), /* for 'A', 'a' */ \
419 REF (mod_ptrdiff_t), /* for 't' */ \
420 REF (mod_intmax_t) /* for 'j' */ \
421 }; \
422 /* Step 3a: after processing first 'h' modifier. */ \
423 static JUMP_TABLE_TYPE step3a_jumps[29] = \
424 { \
425 REF (form_unknown), \
426 REF (form_unknown), /* for ' ' */ \
427 REF (form_unknown), /* for '+' */ \
428 REF (form_unknown), /* for '-' */ \
429 REF (form_unknown), /* for '<hash>' */ \
430 REF (form_unknown), /* for '0' */ \
431 REF (form_unknown), /* for '\'' */ \
432 REF (form_unknown), /* for '*' */ \
433 REF (form_unknown), /* for '1'...'9' */ \
434 REF (form_unknown), /* for '.' */ \
435 REF (mod_halfhalf), /* for 'h' */ \
436 REF (form_unknown), /* for 'l' */ \
437 REF (form_unknown), /* for 'L', 'q' */ \
438 REF (form_unknown), /* for 'z', 'Z' */ \
439 REF (form_percent), /* for '%' */ \
440 REF (form_integer), /* for 'd', 'i' */ \
441 REF (form_unsigned), /* for 'u' */ \
442 REF (form_octal), /* for 'o' */ \
443 REF (form_hexa), /* for 'X', 'x' */ \
444 REF (form_unknown), /* for 'E', 'e', 'f', 'G', 'g' */ \
445 REF (form_unknown), /* for 'c' */ \
446 REF (form_unknown), /* for 's', 'S' */ \
447 REF (form_unknown), /* for 'p' */ \
448 REF (form_number), /* for 'n' */ \
449 REF (form_unknown), /* for 'm' */ \
450 REF (form_unknown), /* for 'C' */ \
451 REF (form_unknown), /* for 'A', 'a' */ \
452 REF (form_unknown), /* for 't' */ \
453 REF (form_unknown) /* for 'j' */ \
454 }; \
455 /* Step 3b: after processing first 'l' modifier. */ \
456 static JUMP_TABLE_TYPE step3b_jumps[29] = \
457 { \
458 REF (form_unknown), \
459 REF (form_unknown), /* for ' ' */ \
460 REF (form_unknown), /* for '+' */ \
461 REF (form_unknown), /* for '-' */ \
462 REF (form_unknown), /* for '<hash>' */ \
463 REF (form_unknown), /* for '0' */ \
464 REF (form_unknown), /* for '\'' */ \
465 REF (form_unknown), /* for '*' */ \
466 REF (form_unknown), /* for '1'...'9' */ \
467 REF (form_unknown), /* for '.' */ \
468 REF (form_unknown), /* for 'h' */ \
469 REF (mod_longlong), /* for 'l' */ \
470 REF (form_unknown), /* for 'L', 'q' */ \
471 REF (form_unknown), /* for 'z', 'Z' */ \
472 REF (form_percent), /* for '%' */ \
473 REF (form_integer), /* for 'd', 'i' */ \
474 REF (form_unsigned), /* for 'u' */ \
475 REF (form_octal), /* for 'o' */ \
476 REF (form_hexa), /* for 'X', 'x' */ \
477 REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
478 REF (form_character), /* for 'c' */ \
479 REF (form_string), /* for 's', 'S' */ \
480 REF (form_pointer), /* for 'p' */ \
481 REF (form_number), /* for 'n' */ \
482 REF (form_strerror), /* for 'm' */ \
483 REF (form_wcharacter), /* for 'C' */ \
484 REF (form_floathex), /* for 'A', 'a' */ \
485 REF (form_unknown), /* for 't' */ \
486 REF (form_unknown) /* for 'j' */ \
487 }
488
489 #define STEP4_TABLE \
490 /* Step 4: processing format specifier. */ \
491 static JUMP_TABLE_TYPE step4_jumps[29] = \
492 { \
493 REF (form_unknown), \
494 REF (form_unknown), /* for ' ' */ \
495 REF (form_unknown), /* for '+' */ \
496 REF (form_unknown), /* for '-' */ \
497 REF (form_unknown), /* for '<hash>' */ \
498 REF (form_unknown), /* for '0' */ \
499 REF (form_unknown), /* for '\'' */ \
500 REF (form_unknown), /* for '*' */ \
501 REF (form_unknown), /* for '1'...'9' */ \
502 REF (form_unknown), /* for '.' */ \
503 REF (form_unknown), /* for 'h' */ \
504 REF (form_unknown), /* for 'l' */ \
505 REF (form_unknown), /* for 'L', 'q' */ \
506 REF (form_unknown), /* for 'z', 'Z' */ \
507 REF (form_percent), /* for '%' */ \
508 REF (form_integer), /* for 'd', 'i' */ \
509 REF (form_unsigned), /* for 'u' */ \
510 REF (form_octal), /* for 'o' */ \
511 REF (form_hexa), /* for 'X', 'x' */ \
512 REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
513 REF (form_character), /* for 'c' */ \
514 REF (form_string), /* for 's', 'S' */ \
515 REF (form_pointer), /* for 'p' */ \
516 REF (form_number), /* for 'n' */ \
517 REF (form_strerror), /* for 'm' */ \
518 REF (form_wcharacter), /* for 'C' */ \
519 REF (form_floathex), /* for 'A', 'a' */ \
520 REF (form_unknown), /* for 't' */ \
521 REF (form_unknown) /* for 'j' */ \
522 }
523
524
525 #define process_arg(fspec) \
526 /* Start real work. We know about all flags and modifiers and \
527 now process the wanted format specifier. */ \
528 LABEL (form_percent): \
529 /* Write a literal "%". */ \
530 outchar (L_('%')); \
531 break; \
532 \
533 LABEL (form_integer): \
534 /* Signed decimal integer. */ \
535 base = 10; \
536 \
537 if (is_longlong) \
538 { \
539 long long int signed_number; \
540 \
541 if (fspec == NULL) \
542 signed_number = va_arg (ap, long long int); \
543 else \
544 signed_number = args_value[fspec->data_arg].pa_long_long_int; \
545 \
546 is_negative = signed_number < 0; \
547 number.longlong = is_negative ? (- signed_number) : signed_number; \
548 \
549 goto LABEL (longlong_number); \
550 } \
551 else \
552 { \
553 long int signed_number; \
554 \
555 if (fspec == NULL) \
556 { \
557 if (is_long_num) \
558 signed_number = va_arg (ap, long int); \
559 else /* `char' and `short int' will be promoted to `int'. */ \
560 signed_number = va_arg (ap, int); \
561 } \
562 else \
563 if (is_long_num) \
564 signed_number = args_value[fspec->data_arg].pa_long_int; \
565 else \
566 signed_number = args_value[fspec->data_arg].pa_int; \
567 \
568 is_negative = signed_number < 0; \
569 number.word = is_negative ? (- signed_number) : signed_number; \
570 \
571 goto LABEL (number); \
572 } \
573 /* NOTREACHED */ \
574 \
575 LABEL (form_unsigned): \
576 /* Unsigned decimal integer. */ \
577 base = 10; \
578 goto LABEL (unsigned_number); \
579 /* NOTREACHED */ \
580 \
581 LABEL (form_octal): \
582 /* Unsigned octal integer. */ \
583 base = 8; \
584 goto LABEL (unsigned_number); \
585 /* NOTREACHED */ \
586 \
587 LABEL (form_hexa): \
588 /* Unsigned hexadecimal integer. */ \
589 base = 16; \
590 \
591 LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
592 \
593 /* ISO specifies the `+' and ` ' flags only for signed \
594 conversions. */ \
595 is_negative = 0; \
596 showsign = 0; \
597 space = 0; \
598 \
599 if (is_longlong) \
600 { \
601 if (fspec == NULL) \
602 number.longlong = va_arg (ap, unsigned long long int); \
603 else \
604 number.longlong = args_value[fspec->data_arg].pa_u_long_long_int; \
605 \
606 LABEL (longlong_number): \
607 if (prec < 0) \
608 /* Supply a default precision if none was given. */ \
609 prec = 1; \
610 else \
611 /* We have to take care for the '0' flag. If a precision \
612 is given it must be ignored. */ \
613 pad = L_(' '); \
614 \
615 /* If the precision is 0 and the number is 0 nothing has to \
616 be written for the number, except for the 'o' format in \
617 alternate form. */ \
618 if (prec == 0 && number.longlong == 0) \
619 { \
620 string = workend; \
621 if (base == 8 && alt) \
622 *string-- = L_('0'); \
623 } \
624 else \
625 { \
626 /* Put the number in WORK. */ \
627 string = _itoa (number.longlong, workend + 1, base, \
628 spec == L_('X')); \
629 string -= 1; \
630 if (group && grouping) \
631 string = group_number (string, workend, grouping, \
632 thousands_sep); \
633 } \
634 /* Simplify further test for num != 0. */ \
635 number.word = number.longlong != 0; \
636 } \
637 else \
638 { \
639 if (fspec == NULL) \
640 { \
641 if (is_long_num) \
642 number.word = va_arg (ap, unsigned long int); \
643 else if (!is_short) \
644 number.word = va_arg (ap, unsigned int); \
645 else \
646 number.word = (unsigned short int) va_arg (ap, unsigned int); \
647 } \
648 else \
649 if (is_long_num) \
650 number.word = args_value[fspec->data_arg].pa_u_long_int; \
651 else if (is_char) \
652 number.word = (unsigned char) \
653 args_value[fspec->data_arg].pa_char; \
654 else if (!is_short) \
655 number.word = args_value[fspec->data_arg].pa_u_int; \
656 else \
657 number.word = (unsigned short int) \
658 args_value[fspec->data_arg].pa_u_short_int; \
659 \
660 LABEL (number): \
661 if (prec < 0) \
662 /* Supply a default precision if none was given. */ \
663 prec = 1; \
664 else \
665 /* We have to take care for the '0' flag. If a precision \
666 is given it must be ignored. */ \
667 pad = L_(' '); \
668 \
669 /* If the precision is 0 and the number is 0 nothing has to \
670 be written for the number, except for the 'o' format in \
671 alternate form. */ \
672 if (prec == 0 && number.word == 0) \
673 { \
674 string = workend; \
675 if (base == 8 && alt) \
676 *string-- = L_('0'); \
677 } \
678 else \
679 { \
680 /* Put the number in WORK. */ \
681 string = _itoa_word (number.word, workend + 1, base, \
682 spec == L_('X')); \
683 string -= 1; \
684 if (group && grouping) \
685 string = group_number (string, workend, grouping, \
686 thousands_sep); \
687 } \
688 } \
689 \
690 if (prec <= workend - string && number.word != 0 && alt && base == 8) \
691 /* Add octal marker. */ \
692 *string-- = L_('0'); \
693 \
694 prec = MAX (0, prec - (workend - string)); \
695 \
696 if (!left) \
697 { \
698 width -= workend - string + prec; \
699 \
700 if (number.word != 0 && alt && base == 16) \
701 /* Account for 0X hex marker. */ \
702 width -= 2; \
703 \
704 if (is_negative || showsign || space) \
705 --width; \
706 \
707 if (pad == L_(' ')) \
708 { \
709 PAD (L_(' ')); \
710 width = 0; \
711 } \
712 \
713 if (is_negative) \
714 outchar (L_('-')); \
715 else if (showsign) \
716 outchar (L_('+')); \
717 else if (space) \
718 outchar (L_(' ')); \
719 \
720 if (number.word != 0 && alt && base == 16) \
721 { \
722 outchar (L_('0')); \
723 outchar (spec); \
724 } \
725 \
726 width += prec; \
727 PAD (L_('0')); \
728 \
729 outstring (string + 1, workend - string); \
730 \
731 break; \
732 } \
733 else \
734 { \
735 if (is_negative) \
736 { \
737 outchar (L_('-')); \
738 --width; \
739 } \
740 else if (showsign) \
741 { \
742 outchar (L_('+')); \
743 --width; \
744 } \
745 else if (space) \
746 { \
747 outchar (L_(' ')); \
748 --width; \
749 } \
750 \
751 if (number.word != 0 && alt && base == 16) \
752 { \
753 outchar (L_('0')); \
754 outchar (spec); \
755 width -= 2; \
756 } \
757 \
758 width -= workend - string + prec; \
759 \
760 if (prec > 0) \
761 { \
762 int temp = width; \
763 width = prec; \
764 PAD (L_('0'));; \
765 width = temp; \
766 } \
767 \
768 outstring (string + 1, workend - string); \
769 \
770 PAD (L_(' ')); \
771 break; \
772 } \
773 \
774 LABEL (form_float): \
775 { \
776 /* Floating-point number. This is handled by printf_fp.c. */ \
777 extern int __printf_fp __P ((FILE *, const struct printf_info *, \
778 const void **const)); \
779 const void *ptr; \
780 int function_done; \
781 \
782 if (fspec == NULL) \
783 { \
784 struct printf_info info = { prec: prec, \
785 width: width, \
786 spec: spec, \
787 is_long_double: is_long_double, \
788 is_short: is_short, \
789 is_long: is_long, \
790 alt: alt, \
791 space: space, \
792 left: left, \
793 showsign: showsign, \
794 group: group, \
795 pad: pad, \
796 extra: 0, \
797 wide: sizeof (CHAR_T) != 1 }; \
798 \
799 if (is_long_double) \
800 the_arg.pa_long_double = va_arg (ap, long double); \
801 else \
802 the_arg.pa_double = va_arg (ap, double); \
803 ptr = (const void *) &the_arg; \
804 \
805 function_done = __printf_fp (s, &info, &ptr); \
806 } \
807 else \
808 { \
809 ptr = (const void *) &args_value[fspec->data_arg]; \
810 \
811 function_done = __printf_fp (s, &fspec->info, &ptr); \
812 } \
813 \
814 if (function_done < 0) \
815 { \
816 /* Error in print handler. */ \
817 done = -1; \
818 goto all_done; \
819 } \
820 \
821 done += function_done; \
822 } \
823 break; \
824 \
825 LABEL (form_floathex): \
826 { \
827 /* FLoating point number printed as hexadecimal number. */ \
828 extern int __printf_fphex __P ((FILE *, const struct printf_info *, \
829 const void **const)); \
830 const void *ptr; \
831 int function_done; \
832 \
833 if (fspec == NULL) \
834 { \
835 struct printf_info info = { prec: prec, \
836 width: width, \
837 spec: spec, \
838 is_long_double: is_long_double, \
839 is_short: is_short, \
840 is_long: is_long, \
841 alt: alt, \
842 space: space, \
843 left: left, \
844 showsign: showsign, \
845 group: group, \
846 pad: pad, \
847 extra: 0, \
848 wide: sizeof (CHAR_T) != 1 }; \
849 \
850 if (is_long_double) \
851 the_arg.pa_long_double = va_arg (ap, long double); \
852 else \
853 the_arg.pa_double = va_arg (ap, double); \
854 ptr = (const void *) &the_arg; \
855 \
856 function_done = __printf_fphex (s, &info, &ptr); \
857 } \
858 else \
859 { \
860 ptr = (const void *) &args_value[fspec->data_arg]; \
861 \
862 function_done = __printf_fphex (s, &fspec->info, &ptr); \
863 } \
864 \
865 if (function_done < 0) \
866 { \
867 /* Error in print handler. */ \
868 done = -1; \
869 goto all_done; \
870 } \
871 \
872 done += function_done; \
873 } \
874 break; \
875 \
876 LABEL (form_pointer): \
877 /* Generic pointer. */ \
878 { \
879 const void *ptr; \
880 if (fspec == NULL) \
881 ptr = va_arg (ap, void *); \
882 else \
883 ptr = args_value[fspec->data_arg].pa_pointer; \
884 if (ptr != NULL) \
885 { \
886 /* If the pointer is not NULL, write it as a %#x spec. */ \
887 base = 16; \
888 number.word = (unsigned long int) ptr; \
889 is_negative = 0; \
890 alt = 1; \
891 group = 0; \
892 spec = L_('x'); \
893 goto LABEL (number); \
894 } \
895 else \
896 { \
897 /* Write "(nil)" for a nil pointer. */ \
898 string = (CHAR_T *) L_("(nil)"); \
899 /* Make sure the full string "(nil)" is printed. */ \
900 if (prec < 5) \
901 prec = 5; \
902 is_long = 0; /* This is no wide-char string. */ \
903 goto LABEL (print_string); \
904 } \
905 } \
906 /* NOTREACHED */ \
907 \
908 LABEL (form_number): \
909 /* Answer the count of characters written. */ \
910 if (fspec == NULL) \
911 { \
912 if (is_longlong) \
913 *(long long int *) va_arg (ap, void *) = done; \
914 else if (is_long_num) \
915 *(long int *) va_arg (ap, void *) = done; \
916 else if (!is_short) \
917 *(int *) va_arg (ap, void *) = done; \
918 else \
919 *(short int *) va_arg (ap, void *) = done; \
920 } \
921 else \
922 if (is_longlong) \
923 *(long long int *) args_value[fspec->data_arg].pa_pointer = done; \
924 else if (is_long_num) \
925 *(long int *) args_value[fspec->data_arg].pa_pointer = done; \
926 else if (!is_short) \
927 *(int *) args_value[fspec->data_arg].pa_pointer = done; \
928 else \
929 *(short int *) args_value[fspec->data_arg].pa_pointer = done; \
930 break; \
931 \
932 LABEL (form_strerror): \
933 /* Print description of error ERRNO. */ \
934 string = \
935 (CHAR_T *) __strerror_r (save_errno, (char *) work_buffer, \
936 sizeof work_buffer); \
937 is_long = 0; /* This is no wide-char string. */ \
938 goto LABEL (print_string)
939
940 #ifdef COMPILE_WPRINTF
941 # define process_string_arg(fspec) \
942 LABEL (form_character): \
943 /* Character. */ \
944 if (is_long) \
945 goto LABEL (form_wcharacter); \
946 --width; /* Account for the character itself. */ \
947 if (!left) \
948 PAD (L' '); \
949 if (fspec == NULL) \
950 outchar (btowc ((unsigned char) va_arg (ap, int))); /* Promoted. */ \
951 else \
952 outchar (btowc ((unsigned char) args_value[fspec->data_arg].pa_char));\
953 if (left) \
954 PAD (L' '); \
955 break; \
956 \
957 LABEL (form_wcharacter): \
958 { \
959 /* Wide character. */ \
960 --width; \
961 if (!left) \
962 PAD (L' '); \
963 if (fspec == NULL) \
964 outchar (va_arg (ap, wint_t)); \
965 else \
966 outchar (args_value[fspec->data_arg].pa_wchar); \
967 if (left) \
968 PAD (L' '); \
969 } \
970 break; \
971 \
972 LABEL (form_string): \
973 { \
974 size_t len; \
975 \
976 /* The string argument could in fact be `char *' or `wchar_t *'. \
977 But this should not make a difference here. */ \
978 if (fspec == NULL) \
979 string = (CHAR_T *) va_arg (ap, const wchar_t *); \
980 else \
981 string = (CHAR_T *) args_value[fspec->data_arg].pa_wstring; \
982 \
983 /* Entry point for printing other strings. */ \
984 LABEL (print_string): \
985 \
986 if (string == NULL) \
987 { \
988 /* Write "(null)" if there's space. */ \
989 if (prec == -1 \
990 || prec >= (int) (sizeof (null) / sizeof (null[0])) - 1) \
991 { \
992 string = (CHAR_T *) null; \
993 len = (sizeof (null) / sizeof (null[0])) - 1; \
994 } \
995 else \
996 { \
997 string = (CHAR_T *) L""; \
998 len = 0; \
999 } \
1000 } \
1001 else if (!is_long && spec != L_('S')) \
1002 { \
1003 /* This is complicated. We have to transform the multibyte \
1004 string into a wide character string. */ \
1005 const char *mbs = (const char *) string; \
1006 mbstate_t mbstate; \
1007 \
1008 len = prec == -1 ? strnlen (mbs, prec) : strlen (mbs); \
1009 \
1010 /* Allocate dynamically an array which definitely is long \
1011 enough for the wide character version. */ \
1012 string = (CHAR_T *) alloca ((len + 1) * sizeof (wchar_t)); \
1013 \
1014 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1015 len = __mbsrtowcs (string, &mbs, len + 1, &mbstate); \
1016 if (len == (size_t) -1) \
1017 { \
1018 /* Illegal multibyte character. */ \
1019 done = -1; \
1020 goto all_done; \
1021 } \
1022 } \
1023 else \
1024 { \
1025 if (prec != -1) \
1026 /* Search for the end of the string, but don't search past \
1027 the length specified by the precision. */ \
1028 len = __wcsnlen (string, prec); \
1029 else \
1030 len = __wcslen (string); \
1031 } \
1032 \
1033 if ((width -= len) < 0) \
1034 { \
1035 outstring (string, len); \
1036 break; \
1037 } \
1038 \
1039 if (!left) \
1040 PAD (L' '); \
1041 outstring (string, len); \
1042 if (left) \
1043 PAD (L' '); \
1044 } \
1045 break;
1046 #else
1047 # define process_string_arg(fspec) \
1048 LABEL (form_character): \
1049 /* Character. */ \
1050 if (is_long) \
1051 goto LABEL (form_wcharacter); \
1052 --width; /* Account for the character itself. */ \
1053 if (!left) \
1054 PAD (' '); \
1055 if (fspec == NULL) \
1056 outchar ((unsigned char) va_arg (ap, int)); /* Promoted. */ \
1057 else \
1058 outchar ((unsigned char) args_value[fspec->data_arg].pa_char); \
1059 if (left) \
1060 PAD (' '); \
1061 break; \
1062 \
1063 LABEL (form_wcharacter): \
1064 { \
1065 /* Wide character. */ \
1066 char buf[MB_CUR_MAX]; \
1067 mbstate_t mbstate; \
1068 size_t len; \
1069 \
1070 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1071 len = __wcrtomb (buf, (fspec == NULL ? va_arg (ap, wint_t) \
1072 : args_value[fspec->data_arg].pa_wchar), \
1073 &mbstate); \
1074 width -= len; \
1075 if (!left) \
1076 PAD (' '); \
1077 outstring (buf, len); \
1078 if (left) \
1079 PAD (' '); \
1080 } \
1081 break; \
1082 \
1083 LABEL (form_string): \
1084 { \
1085 size_t len; \
1086 \
1087 /* The string argument could in fact be `char *' or `wchar_t *'. \
1088 But this should not make a difference here. */ \
1089 if (fspec == NULL) \
1090 string = (char *) va_arg (ap, const char *); \
1091 else \
1092 string = (char *) args_value[fspec->data_arg].pa_string; \
1093 \
1094 /* Entry point for printing other strings. */ \
1095 LABEL (print_string): \
1096 \
1097 if (string == NULL) \
1098 { \
1099 /* Write "(null)" if there's space. */ \
1100 if (prec == -1 || prec >= (int) sizeof (null) - 1) \
1101 { \
1102 string = (char *) null; \
1103 len = sizeof (null) - 1; \
1104 } \
1105 else \
1106 { \
1107 string = (char *) ""; \
1108 len = 0; \
1109 } \
1110 } \
1111 else if (!is_long && spec != L_('S')) \
1112 { \
1113 if (prec != -1) \
1114 /* Search for the end of the string, but don't search past \
1115 the length specified by the precision. */ \
1116 len = __strnlen (string, prec); \
1117 else \
1118 len = strlen (string); \
1119 } \
1120 else \
1121 { \
1122 const wchar_t *s2 = (const wchar_t *) string; \
1123 mbstate_t mbstate; \
1124 \
1125 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1126 \
1127 if (prec > 0) \
1128 { \
1129 /* The string `s2' might not be NUL terminated. */ \
1130 string = (char *) alloca (prec); \
1131 len = __wcsrtombs (string, &s2, prec, &mbstate); \
1132 } \
1133 else \
1134 { \
1135 len = __wcsrtombs (NULL, &s2, 0, &mbstate); \
1136 if (len != (size_t) -1) \
1137 { \
1138 assert (__mbsinit (&mbstate)); \
1139 s2 = (const wchar_t *) string; \
1140 string = (char *) alloca (len + 1); \
1141 (void) __wcsrtombs (string, &s2, len + 1, &mbstate); \
1142 } \
1143 } \
1144 \
1145 if (len == (size_t) -1) \
1146 { \
1147 /* Illegal wide-character string. */ \
1148 done = -1; \
1149 goto all_done; \
1150 } \
1151 } \
1152 \
1153 if ((width -= len) < 0) \
1154 { \
1155 outstring (string, len); \
1156 break; \
1157 } \
1158 \
1159 if (!left) \
1160 PAD (' '); \
1161 outstring (string, len); \
1162 if (left) \
1163 PAD (' '); \
1164 } \
1165 break;
1166 #endif
1167
1168 /* Orient the stream. */
1169 #ifdef ORIENT
1170 ORIENT;
1171 #endif
1172
1173 /* Sanity check of arguments. */
1174 ARGCHECK (s, format);
1175
1176 #ifdef ORIENT
1177 /* Check for correct orientation. */
1178 if (
1179 # ifdef USE_IN_LIBIO
1180 s->_vtable_offset == 0 &&
1181 # endif
1182 _IO_fwide (s, sizeof (CHAR_T) == 1 ? -1 : 1)
1183 != (sizeof (CHAR_T) == 1 ? -1 : 1))
1184 /* The stream is already oriented otherwise. */
1185 return EOF;
1186 #endif
1187
1188 if (UNBUFFERED_P (s))
1189 /* Use a helper function which will allocate a local temporary buffer
1190 for the stream and then call us again. */
1191 return buffered_vfprintf (s, format, ap);
1192
1193 /* Initialize local variables. */
1194 done = 0;
1195 grouping = (const char *) -1;
1196 #ifdef __va_copy
1197 /* This macro will be available soon in gcc's <stdarg.h>. We need it
1198 since on some systems `va_list' is not an integral type. */
1199 __va_copy (ap_save, ap);
1200 #else
1201 ap_save = ap;
1202 #endif
1203 nspecs_done = 0;
1204
1205 #ifdef COMPILE_WPRINTF
1206 /* Find the first format specifier. */
1207 f = lead_str_end = find_spec ((const UCHAR_T *) format);
1208 #else
1209 /* Put state for processing format string in initial state. */
1210 memset (&mbstate, '\0', sizeof (mbstate_t));
1211
1212 /* Find the first format specifier. */
1213 f = lead_str_end = find_spec (format, &mbstate);
1214 #endif
1215
1216 /* Lock stream. */
1217 #ifdef USE_IN_LIBIO
1218 __libc_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, s);
1219 _IO_flockfile (s);
1220 #else
1221 __libc_cleanup_region_start ((void (*) (void *)) &__funlockfile, s);
1222 __flockfile (s);
1223 #endif
1224
1225 /* Write the literal text before the first format. */
1226 outstring ((const UCHAR_T *) format,
1227 lead_str_end - (const UCHAR_T *) format);
1228
1229 /* If we only have to print a simple string, return now. */
1230 if (*f == L_('\0'))
1231 goto all_done;
1232
1233 /* Process whole format string. */
1234 do
1235 {
1236 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined PIC
1237 # define REF(Name) &&do_##Name - &&do_form_unknown
1238 #else
1239 # define REF(Name) &&do_##Name
1240 #endif
1241 #define LABEL(Name) do_##Name
1242 STEP0_3_TABLE;
1243 STEP4_TABLE;
1244
1245 union printf_arg *args_value; /* This is not used here but ... */
1246 int is_negative; /* Flag for negative number. */
1247 union
1248 {
1249 unsigned long long int longlong;
1250 unsigned long int word;
1251 } number;
1252 int base;
1253 union printf_arg the_arg;
1254 CHAR_T *string; /* Pointer to argument string. */
1255 int alt = 0; /* Alternate format. */
1256 int space = 0; /* Use space prefix if no sign is needed. */
1257 int left = 0; /* Left-justify output. */
1258 int showsign = 0; /* Always begin with plus or minus sign. */
1259 int group = 0; /* Print numbers according grouping rules. */
1260 int is_long_double = 0; /* Argument is long double/ long long int. */
1261 int is_short = 0; /* Argument is short int. */
1262 int is_long = 0; /* Argument is long int. */
1263 int is_char = 0; /* Argument is promoted (unsigned) char. */
1264 int width = 0; /* Width of output; 0 means none specified. */
1265 int prec = -1; /* Precision of output; -1 means none specified. */
1266 UCHAR_T pad = L_(' ');/* Padding character. */
1267 CHAR_T spec;
1268
1269 workend = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T) - 1];
1270
1271 /* Get current character in format string. */
1272 JUMP (*++f, step0_jumps);
1273
1274 /* ' ' flag. */
1275 LABEL (flag_space):
1276 space = 1;
1277 JUMP (*++f, step0_jumps);
1278
1279 /* '+' flag. */
1280 LABEL (flag_plus):
1281 showsign = 1;
1282 JUMP (*++f, step0_jumps);
1283
1284 /* The '-' flag. */
1285 LABEL (flag_minus):
1286 left = 1;
1287 pad = L_(' ');
1288 JUMP (*++f, step0_jumps);
1289
1290 /* The '#' flag. */
1291 LABEL (flag_hash):
1292 alt = 1;
1293 JUMP (*++f, step0_jumps);
1294
1295 /* The '0' flag. */
1296 LABEL (flag_zero):
1297 if (!left)
1298 pad = L_('0');
1299 JUMP (*++f, step0_jumps);
1300
1301 /* The '\'' flag. */
1302 LABEL (flag_quote):
1303 group = 1;
1304
1305 /* XXX Completely wrong. Use wctob. */
1306 if (grouping == (const char *) -1)
1307 {
1308 mbstate_t mbstate;
1309
1310 /* Figure out the thousands separator character. */
1311 memset (&mbstate, '\0', sizeof (mbstate));
1312 if (__mbrtowc (&thousands_sep,
1313 _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
1314 strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP)),
1315 &mbstate) <= 0)
1316 thousands_sep = (wchar_t)
1317 *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1318 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1319 if (*grouping == '\0' || *grouping == CHAR_MAX
1320 || thousands_sep == L'\0')
1321 grouping = NULL;
1322 }
1323 JUMP (*++f, step0_jumps);
1324
1325 /* Get width from argument. */
1326 LABEL (width_asterics):
1327 {
1328 const UCHAR_T *tmp; /* Temporary value. */
1329
1330 tmp = ++f;
1331 if (ISDIGIT (*tmp) && read_int (&tmp) && *tmp == L_('$'))
1332 /* The width comes from a positional parameter. */
1333 goto do_positional;
1334
1335 width = va_arg (ap, int);
1336
1337 /* Negative width means left justified. */
1338 if (width < 0)
1339 {
1340 width = -width;
1341 pad = L_(' ');
1342 left = 1;
1343 }
1344
1345 if (width + 32 >= sizeof (work_buffer) / sizeof (work_buffer[0]))
1346 /* We have to use a special buffer. The "32" is just a safe
1347 bet for all the output which is not counted in the width. */
1348 workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T))
1349 + (width + 31));
1350 }
1351 JUMP (*f, step1_jumps);
1352
1353 /* Given width in format string. */
1354 LABEL (width):
1355 width = read_int (&f);
1356
1357 if (width + 32 >= sizeof (work_buffer) / sizeof (work_buffer[0]))
1358 /* We have to use a special buffer. The "32" is just a safe
1359 bet for all the output which is not counted in the width. */
1360 workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T))
1361 + (width + 31));
1362 if (*f == L_('$'))
1363 /* Oh, oh. The argument comes from a positional parameter. */
1364 goto do_positional;
1365 JUMP (*f, step1_jumps);
1366
1367 LABEL (precision):
1368 ++f;
1369 if (*f == L_('*'))
1370 {
1371 const UCHAR_T *tmp; /* Temporary value. */
1372
1373 tmp = ++f;
1374 if (ISDIGIT (*tmp) && read_int (&tmp) > 0 && *tmp == L_('$'))
1375 /* The precision comes from a positional parameter. */
1376 goto do_positional;
1377
1378 prec = va_arg (ap, int);
1379
1380 /* If the precision is negative the precision is omitted. */
1381 if (prec < 0)
1382 prec = -1;
1383 }
1384 else if (ISDIGIT (*f))
1385 prec = read_int (&f);
1386 else
1387 prec = 0;
1388 if (prec > width
1389 && prec + 32 > sizeof (work_buffer) / sizeof (work_buffer[0]))
1390 workend = alloca (spec + 32) + (spec + 31);
1391 JUMP (*f, step2_jumps);
1392
1393 /* Process 'h' modifier. There might another 'h' following. */
1394 LABEL (mod_half):
1395 is_short = 1;
1396 JUMP (*++f, step3a_jumps);
1397
1398 /* Process 'hh' modifier. */
1399 LABEL (mod_halfhalf):
1400 is_short = 0;
1401 is_char = 1;
1402 JUMP (*++f, step4_jumps);
1403
1404 /* Process 'l' modifier. There might another 'l' following. */
1405 LABEL (mod_long):
1406 is_long = 1;
1407 JUMP (*++f, step3b_jumps);
1408
1409 /* Process 'L', 'q', or 'll' modifier. No other modifier is
1410 allowed to follow. */
1411 LABEL (mod_longlong):
1412 is_long_double = 1;
1413 JUMP (*++f, step4_jumps);
1414
1415 LABEL (mod_size_t):
1416 is_long_double = sizeof (size_t) > sizeof (unsigned long int);
1417 is_long = sizeof (size_t) > sizeof (unsigned int);
1418 JUMP (*++f, step4_jumps);
1419
1420 LABEL (mod_ptrdiff_t):
1421 is_long_double = sizeof (ptrdiff_t) > sizeof (unsigned long int);
1422 is_long = sizeof (ptrdiff_t) > sizeof (unsigned int);
1423 JUMP (*++f, step4_jumps);
1424
1425 LABEL (mod_intmax_t):
1426 is_long_double = sizeof (intmax_t) > sizeof (unsigned long int);
1427 is_long = sizeof (intmax_t) > sizeof (unsigned int);
1428 JUMP (*++f, step4_jumps);
1429
1430 /* Process current format. */
1431 while (1)
1432 {
1433 process_arg (((struct printf_spec *) NULL));
1434 process_string_arg (((struct printf_spec *) NULL));
1435
1436 LABEL (form_unknown):
1437 if (spec == L_('\0'))
1438 {
1439 /* The format string ended before the specifier is complete. */
1440 done = -1;
1441 goto all_done;
1442 }
1443
1444 /* If we are in the fast loop force entering the complicated
1445 one. */
1446 goto do_positional;
1447 }
1448
1449 /* The format is correctly handled. */
1450 ++nspecs_done;
1451
1452 /* Look for next format specifier. */
1453 #ifdef COMPILE_WPRINTF
1454 f = find_spec ((end_of_spec = ++f));
1455 #else
1456 f = find_spec ((end_of_spec = ++f), &mbstate);
1457 #endif
1458
1459 /* Write the following constant string. */
1460 outstring (end_of_spec, f - end_of_spec);
1461 }
1462 while (*f != L_('\0'));
1463
1464 /* Unlock stream and return. */
1465 goto all_done;
1466
1467 /* Here starts the more complex loop to handle positional parameters. */
1468 do_positional:
1469 {
1470 /* Array with information about the needed arguments. This has to
1471 be dynamically extensible. */
1472 size_t nspecs = 0;
1473 size_t nspecs_max = 32; /* A more or less arbitrary start value. */
1474 struct printf_spec *specs
1475 = alloca (nspecs_max * sizeof (struct printf_spec));
1476
1477 /* The number of arguments the format string requests. This will
1478 determine the size of the array needed to store the argument
1479 attributes. */
1480 size_t nargs = 0;
1481 int *args_type;
1482 union printf_arg *args_value = NULL;
1483
1484 /* Positional parameters refer to arguments directly. This could
1485 also determine the maximum number of arguments. Track the
1486 maximum number. */
1487 size_t max_ref_arg = 0;
1488
1489 /* Just a counter. */
1490 size_t cnt;
1491
1492
1493 if (grouping == (const char *) -1)
1494 {
1495 mbstate_t mbstate;
1496
1497 /* Figure out the thousands separator character. */
1498 memset (&mbstate, '\0', sizeof (mbstate));
1499 if (__mbrtowc (&thousands_sep,
1500 _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
1501 strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP)),
1502 &mbstate) <= 0)
1503 thousands_sep = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1504 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1505 if (*grouping == '\0' || *grouping == CHAR_MAX
1506 || thousands_sep == L'\0')
1507 grouping = NULL;
1508 }
1509
1510 for (f = lead_str_end; *f != L_('\0'); f = specs[nspecs++].next_fmt)
1511 {
1512 if (nspecs >= nspecs_max)
1513 {
1514 /* Extend the array of format specifiers. */
1515 struct printf_spec *old = specs;
1516
1517 nspecs_max *= 2;
1518 specs = alloca (nspecs_max * sizeof (struct printf_spec));
1519
1520 if (specs == &old[nspecs])
1521 /* Stack grows up, OLD was the last thing allocated;
1522 extend it. */
1523 nspecs_max += nspecs_max / 2;
1524 else
1525 {
1526 /* Copy the old array's elements to the new space. */
1527 memcpy (specs, old, nspecs * sizeof (struct printf_spec));
1528 if (old == &specs[nspecs])
1529 /* Stack grows down, OLD was just below the new
1530 SPECS. We can use that space when the new space
1531 runs out. */
1532 nspecs_max += nspecs_max / 2;
1533 }
1534 }
1535
1536 /* Parse the format specifier. */
1537 #ifdef COMPILE_WPRINTF
1538 nargs += parse_one_spec (f, nargs, &specs[nspecs], &max_ref_arg);
1539 #else
1540 nargs += parse_one_spec (f, nargs, &specs[nspecs], &max_ref_arg,
1541 &mbstate);
1542 #endif
1543 }
1544
1545 /* Determine the number of arguments the format string consumes. */
1546 nargs = MAX (nargs, max_ref_arg);
1547
1548 /* Allocate memory for the argument descriptions. */
1549 args_type = alloca (nargs * sizeof (int));
1550 memset (args_type, 0, nargs * sizeof (int));
1551 args_value = alloca (nargs * sizeof (union printf_arg));
1552
1553 /* XXX Could do sanity check here: If any element in ARGS_TYPE is
1554 still zero after this loop, format is invalid. For now we
1555 simply use 0 as the value. */
1556
1557 /* Fill in the types of all the arguments. */
1558 for (cnt = 0; cnt < nspecs; ++cnt)
1559 {
1560 /* If the width is determined by an argument this is an int. */
1561 if (specs[cnt].width_arg != -1)
1562 args_type[specs[cnt].width_arg] = PA_INT;
1563
1564 /* If the precision is determined by an argument this is an int. */
1565 if (specs[cnt].prec_arg != -1)
1566 args_type[specs[cnt].prec_arg] = PA_INT;
1567
1568 switch (specs[cnt].ndata_args)
1569 {
1570 case 0: /* No arguments. */
1571 break;
1572 case 1: /* One argument; we already have the type. */
1573 args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
1574 break;
1575 default:
1576 /* We have more than one argument for this format spec.
1577 We must call the arginfo function again to determine
1578 all the types. */
1579 (void) (*__printf_arginfo_table[specs[cnt].info.spec])
1580 (&specs[cnt].info,
1581 specs[cnt].ndata_args, &args_type[specs[cnt].data_arg]);
1582 break;
1583 }
1584 }
1585
1586 /* Now we know all the types and the order. Fill in the argument
1587 values. */
1588 for (cnt = 0; cnt < nargs; ++cnt)
1589 switch (args_type[cnt])
1590 {
1591 #define T(tag, mem, type) \
1592 case tag: \
1593 args_value[cnt].mem = va_arg (ap_save, type); \
1594 break
1595
1596 T (PA_CHAR, pa_char, int); /* Promoted. */
1597 T (PA_WCHAR, pa_wchar, wint_t);
1598 T (PA_INT|PA_FLAG_SHORT, pa_short_int, int); /* Promoted. */
1599 T (PA_INT, pa_int, int);
1600 T (PA_INT|PA_FLAG_LONG, pa_long_int, long int);
1601 T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
1602 T (PA_FLOAT, pa_float, double); /* Promoted. */
1603 T (PA_DOUBLE, pa_double, double);
1604 T (PA_DOUBLE|PA_FLAG_LONG_DOUBLE, pa_long_double, long double);
1605 T (PA_STRING, pa_string, const char *);
1606 T (PA_WSTRING, pa_wstring, const wchar_t *);
1607 T (PA_POINTER, pa_pointer, void *);
1608 #undef T
1609 default:
1610 if ((args_type[cnt] & PA_FLAG_PTR) != 0)
1611 args_value[cnt].pa_pointer = va_arg (ap_save, void *);
1612 else
1613 args_value[cnt].pa_long_double = 0.0;
1614 break;
1615 }
1616
1617 /* Now walk through all format specifiers and process them. */
1618 for (; (size_t) nspecs_done < nspecs; ++nspecs_done)
1619 {
1620 #undef REF
1621 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined PIC
1622 # define REF(Name) &&do2_##Name - &&do_form_unknown
1623 #else
1624 # define REF(Name) &&do2_##Name
1625 #endif
1626 #undef LABEL
1627 #define LABEL(Name) do2_##Name
1628 STEP4_TABLE;
1629
1630 int is_negative;
1631 union
1632 {
1633 unsigned long long int longlong;
1634 unsigned long int word;
1635 } number;
1636 int base;
1637 union printf_arg the_arg;
1638 CHAR_T *string; /* Pointer to argument string. */
1639
1640 /* Fill variables from values in struct. */
1641 int alt = specs[nspecs_done].info.alt;
1642 int space = specs[nspecs_done].info.space;
1643 int left = specs[nspecs_done].info.left;
1644 int showsign = specs[nspecs_done].info.showsign;
1645 int group = specs[nspecs_done].info.group;
1646 int is_long_double = specs[nspecs_done].info.is_long_double;
1647 int is_short = specs[nspecs_done].info.is_short;
1648 int is_char = specs[nspecs_done].info.is_char;
1649 int is_long = specs[nspecs_done].info.is_long;
1650 int width = specs[nspecs_done].info.width;
1651 int prec = specs[nspecs_done].info.prec;
1652 char pad = specs[nspecs_done].info.pad;
1653 CHAR_T spec = specs[nspecs_done].info.spec;
1654
1655 /* Fill in last information. */
1656 if (specs[nspecs_done].width_arg != -1)
1657 {
1658 /* Extract the field width from an argument. */
1659 specs[nspecs_done].info.width =
1660 args_value[specs[nspecs_done].width_arg].pa_int;
1661
1662 if (specs[nspecs_done].info.width < 0)
1663 /* If the width value is negative left justification is
1664 selected and the value is taken as being positive. */
1665 {
1666 specs[nspecs_done].info.width *= -1;
1667 left = specs[nspecs_done].info.left = 1;
1668 }
1669 width = specs[nspecs_done].info.width;
1670 }
1671
1672 if (specs[nspecs_done].prec_arg != -1)
1673 {
1674 /* Extract the precision from an argument. */
1675 specs[nspecs_done].info.prec =
1676 args_value[specs[nspecs_done].prec_arg].pa_int;
1677
1678 if (specs[nspecs_done].info.prec < 0)
1679 /* If the precision is negative the precision is
1680 omitted. */
1681 specs[nspecs_done].info.prec = -1;
1682
1683 prec = specs[nspecs_done].info.prec;
1684 }
1685
1686 /* Maybe the buffer is too small. */
1687 if (MAX (prec, width) + 32 > sizeof (work_buffer) / sizeof (CHAR_T))
1688 workend = ((CHAR_T *) alloca ((MAX (prec, width) + 32)
1689 * sizeof (CHAR_T))
1690 + (MAX (prec, width) + 31));
1691
1692 /* Process format specifiers. */
1693 while (1)
1694 {
1695 JUMP (spec, step4_jumps);
1696
1697 process_arg ((&specs[nspecs_done]));
1698 process_string_arg ((&specs[nspecs_done]));
1699
1700 LABEL (form_unknown):
1701 {
1702 extern printf_function **__printf_function_table;
1703 int function_done;
1704 printf_function *function;
1705 unsigned int i;
1706 const void **ptr;
1707
1708 function =
1709 (__printf_function_table == NULL ? NULL :
1710 __printf_function_table[specs[nspecs_done].info.spec]);
1711
1712 if (function == NULL)
1713 function = &printf_unknown;
1714
1715 ptr = alloca (specs[nspecs_done].ndata_args
1716 * sizeof (const void *));
1717
1718 /* Fill in an array of pointers to the argument values. */
1719 for (i = 0; i < specs[nspecs_done].ndata_args; ++i)
1720 ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
1721
1722 /* Call the function. */
1723 function_done = (*function) (s, &specs[nspecs_done].info, ptr);
1724
1725 /* If an error occurred we don't have information about #
1726 of chars. */
1727 if (function_done < 0)
1728 {
1729 done = -1;
1730 goto all_done;
1731 }
1732
1733 done += function_done;
1734 }
1735 break;
1736 }
1737
1738 /* Write the following constant string. */
1739 outstring (specs[nspecs_done].end_of_fmt,
1740 specs[nspecs_done].next_fmt
1741 - specs[nspecs_done].end_of_fmt);
1742 }
1743 }
1744
1745 all_done:
1746 /* Unlock the stream. */
1747 #ifdef USE_IN_LIBIO
1748 _IO_funlockfile (s);
1749 #else
1750 __funlockfile (s);
1751 #endif
1752 __libc_cleanup_region_end (0);
1753
1754 return done;
1755 }
1756 \f
1757 /* Handle an unknown format specifier. This prints out a canonicalized
1758 representation of the format spec itself. */
1759 static int
1760 printf_unknown (FILE *s, const struct printf_info *info,
1761 const void *const *args)
1762
1763 {
1764 int done = 0;
1765 CHAR_T work_buffer[MAX (info->width, info->spec) + 32];
1766 CHAR_T *const workend
1767 = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T) - 1];
1768 register CHAR_T *w;
1769
1770 outchar (L_('%'));
1771
1772 if (info->alt)
1773 outchar (L_('#'));
1774 if (info->group)
1775 outchar (L_('\''));
1776 if (info->showsign)
1777 outchar (L_('+'));
1778 else if (info->space)
1779 outchar (L_(' '));
1780 if (info->left)
1781 outchar (L_('-'));
1782 if (info->pad == L_('0'))
1783 outchar (L_('0'));
1784
1785 if (info->width != 0)
1786 {
1787 w = _itoa_word (info->width, workend + 1, 10, 0);
1788 while (w <= workend)
1789 outchar (*w++);
1790 }
1791
1792 if (info->prec != -1)
1793 {
1794 outchar (L_('.'));
1795 w = _itoa_word (info->prec, workend + 1, 10, 0);
1796 while (w <= workend)
1797 outchar (*w++);
1798 }
1799
1800 if (info->spec != L_('\0'))
1801 outchar (info->spec);
1802
1803 all_done:
1804 return done;
1805 }
1806 \f
1807 /* Group the digits according to the grouping rules of the current locale.
1808 The interpretation of GROUPING is as in `struct lconv' from <locale.h>. */
1809 static CHAR_T *
1810 internal_function
1811 group_number (CHAR_T *w, CHAR_T *rear_ptr, const char *grouping,
1812 wchar_t thousands_sep)
1813 {
1814 int len;
1815 CHAR_T *src, *s;
1816
1817 /* We treat all negative values like CHAR_MAX. */
1818
1819 if (*grouping == CHAR_MAX || *grouping <= 0)
1820 /* No grouping should be done. */
1821 return w;
1822
1823 len = *grouping;
1824
1825 /* Copy existing string so that nothing gets overwritten. */
1826 src = (CHAR_T *) alloca ((rear_ptr - w) * sizeof (CHAR_T));
1827 s = (CHAR_T *) __mempcpy (src, w + 1,
1828 (rear_ptr - w) * sizeof (CHAR_T)) - 1;
1829 w = rear_ptr;
1830
1831 /* Process all characters in the string. */
1832 while (s >= src)
1833 {
1834 *w-- = *s--;
1835
1836 if (--len == 0 && s >= src)
1837 {
1838 /* A new group begins. */
1839 *w-- = thousands_sep;
1840
1841 len = *grouping++;
1842 if (*grouping == '\0')
1843 /* The previous grouping repeats ad infinitum. */
1844 --grouping;
1845 else if (*grouping == CHAR_MAX
1846 #if CHAR_MIN < 0
1847 || *grouping < 0
1848 #endif
1849 )
1850 {
1851 /* No further grouping to be done.
1852 Copy the rest of the number. */
1853 do
1854 *w-- = *s--;
1855 while (s >= src);
1856 break;
1857 }
1858 }
1859 }
1860 return w;
1861 }
1862 \f
1863 #ifdef USE_IN_LIBIO
1864 /* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
1865 struct helper_file
1866 {
1867 struct _IO_FILE_plus _f;
1868 _IO_FILE *_put_stream;
1869 #ifdef _IO_MTSAFE_IO
1870 _IO_lock_t lock;
1871 #endif
1872 };
1873
1874 static int
1875 _IO_helper_overflow (_IO_FILE *s, int c)
1876 {
1877 _IO_FILE *target = ((struct helper_file*) s)->_put_stream;
1878 #ifdef COMPILE_WPRINTF
1879 int used = s->_wide_data->_IO_write_ptr - s->_wide_data->_IO_write_base;
1880 if (used)
1881 {
1882 _IO_size_t written = _IO_sputn (target, s->_wide_data->_IO_write_base,
1883 used);
1884 s->_wide_data->_IO_write_ptr -= written;
1885 }
1886 #else
1887 int used = s->_IO_write_ptr - s->_IO_write_base;
1888 if (used)
1889 {
1890 _IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
1891 s->_IO_write_ptr -= written;
1892 }
1893 #endif
1894 return PUTC (c, s);
1895 }
1896
1897 static const struct _IO_jump_t _IO_helper_jumps =
1898 {
1899 JUMP_INIT_DUMMY,
1900 JUMP_INIT (finish, _IO_default_finish),
1901 JUMP_INIT (overflow, _IO_helper_overflow),
1902 JUMP_INIT (underflow, _IO_default_underflow),
1903 JUMP_INIT (uflow, _IO_default_uflow),
1904 JUMP_INIT (pbackfail, _IO_default_pbackfail),
1905 JUMP_INIT (xsputn, _IO_default_xsputn),
1906 JUMP_INIT (xsgetn, _IO_default_xsgetn),
1907 JUMP_INIT (seekoff, _IO_default_seekoff),
1908 JUMP_INIT (seekpos, _IO_default_seekpos),
1909 JUMP_INIT (setbuf, _IO_default_setbuf),
1910 JUMP_INIT (sync, _IO_default_sync),
1911 JUMP_INIT (doallocate, _IO_default_doallocate),
1912 JUMP_INIT (read, _IO_default_read),
1913 JUMP_INIT (write, _IO_default_write),
1914 JUMP_INIT (seek, _IO_default_seek),
1915 JUMP_INIT (close, _IO_default_close),
1916 JUMP_INIT (stat, _IO_default_stat)
1917 };
1918
1919 static int
1920 internal_function
1921 buffered_vfprintf (register _IO_FILE *s, const CHAR_T *format,
1922 _IO_va_list args)
1923 {
1924 CHAR_T buf[_IO_BUFSIZ];
1925 struct helper_file helper;
1926 register _IO_FILE *hp = &helper._f.file;
1927 int result, to_flush;
1928
1929 /* Initialize helper. */
1930 helper._put_stream = s;
1931 #ifdef COMPILE_WPRINTF
1932 _IO_wsetp (hp, buf, buf + sizeof buf / sizeof (CHAR_T));
1933 hp->_mode = 1;
1934 #else
1935 _IO_setp (hp, buf, buf + sizeof buf);
1936 hp->_mode = -1;
1937 #endif
1938 hp->_IO_file_flags = _IO_MAGIC|_IO_NO_READS;
1939 #if _IO_JUMPS_OFFSET
1940 hp->_vtable_offset = 0;
1941 #endif
1942 #ifdef _IO_MTSAFE_IO
1943 hp->_lock = &helper.lock;
1944 __libc_lock_init (*hp->_lock);
1945 #endif
1946 _IO_JUMPS (hp) = (struct _IO_jump_t *) &_IO_helper_jumps;
1947
1948 /* Now print to helper instead. */
1949 result = vfprintf (hp, format, args);
1950
1951 /* Lock stream. */
1952 __libc_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, s);
1953 _IO_flockfile (s);
1954
1955 /* Now flush anything from the helper to the S. */
1956 #ifdef COMPILE_WPRINTF
1957 if ((to_flush = (hp->_wide_data->_IO_write_ptr
1958 - hp->_wide_data->_IO_write_base)) > 0)
1959 {
1960 if ((int) _IO_sputn (s, hp->_wide_data->_IO_write_base, to_flush)
1961 != to_flush)
1962 result = -1;
1963 }
1964 #else
1965 if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
1966 {
1967 if ((int) _IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
1968 result = -1;
1969 }
1970 #endif
1971
1972 /* Unlock the stream. */
1973 _IO_funlockfile (s);
1974 __libc_cleanup_region_end (0);
1975
1976 return result;
1977 }
1978
1979 #else /* !USE_IN_LIBIO */
1980
1981 static int
1982 internal_function
1983 buffered_vfprintf (register FILE *s, const CHAR_T *format, va_list args)
1984 {
1985 char buf[BUFSIZ];
1986 int result;
1987
1988 s->__bufp = s->__buffer = buf;
1989 s->__bufsize = sizeof buf;
1990 s->__put_limit = s->__buffer + s->__bufsize;
1991 s->__get_limit = s->__buffer;
1992
1993 /* Now use buffer to print. */
1994 result = vfprintf (s, format, args);
1995
1996 if (fflush (s) == EOF)
1997 result = -1;
1998 s->__buffer = s->__bufp = s->__get_limit = s->__put_limit = NULL;
1999 s->__bufsize = 0;
2000
2001 return result;
2002 }
2003 \f
2004 /* Pads string with given number of a specified character.
2005 This code is taken from iopadn.c of the GNU I/O library. */
2006 #define PADSIZE 16
2007 static const CHAR_T blanks[PADSIZE] =
2008 { L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '),
2009 L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' ') };
2010 static const CHAR_T zeroes[PADSIZE] =
2011 { L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'),
2012 L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0') };
2013
2014 ssize_t
2015 #ifndef COMPILE_WPRINTF
2016 __printf_pad (FILE *s, char pad, size_t count)
2017 #else
2018 __wprintf_pad (FILE *s, wchar_t pad, size_t count)
2019 #endif
2020 {
2021 const CHAR_T *padptr;
2022 register size_t i;
2023
2024 padptr = pad == L_(' ') ? blanks : zeroes;
2025
2026 for (i = count; i >= PADSIZE; i -= PADSIZE)
2027 if (PUT (s, padptr, PADSIZE) != PADSIZE)
2028 return -1;
2029 if (i > 0)
2030 if (PUT (s, padptr, i) != i)
2031 return -1;
2032
2033 return count;
2034 }
2035 #undef PADSIZE
2036 #endif /* USE_IN_LIBIO */
2037
2038 #ifdef USE_IN_LIBIO
2039 # undef vfprintf
2040 # ifdef strong_alias
2041 /* This is for glibc. */
2042 # ifdef COMPILE_WPRINTF
2043 strong_alias (_IO_vfwprintf, vfwprintf);
2044 # else
2045 strong_alias (_IO_vfprintf, vfprintf);
2046 # endif
2047 # else
2048 # if defined __ELF__ || defined __GNU_LIBRARY__
2049 # include <gnu-stabs.h>
2050 # ifdef weak_alias
2051 # ifdef COMPILE_WPRINTF
2052 weak_alias (_IO_vfwprintf, vfwprintf);
2053 # else
2054 weak_alias (_IO_vfprintf, vfprintf);
2055 # endif
2056 # endif
2057 # endif
2058 # endif
2059 #endif
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