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6591c335 1/* Copyright (C) 1991,92,93,94,95,96,97,98 Free Software Foundation, Inc.
2c6fe0bd 2 This file is part of the GNU C Library.
28f540f4 3
2c6fe0bd
UD		 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.
28f540f4 8
2c6fe0bd
UD		 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.
28f540f4 13
2c6fe0bd
UD		 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. */
28f540f4 18
28f540f4 19#include <ctype.h>
28f540f4 20#include <limits.h>
a04e7405 21#include <printf.h>
28f540f4
RM		 22#include <stdarg.h>
23#include <stdlib.h>
66aeca9c 24#include <errno.h>
299a95b9 25#include <wchar.h>
5107cf1d 26#include <bits/libc-lock.h>
01c901a5 27#include <sys/param.h>
28f540f4 28#include "_itoa.h"
cc3fa755 29#include <locale/localeinfo.h>
a04e7405 30
299a95b9
RM		 31/* This code is shared between the standard stdio implementation found
32 in GNU C library and the libio implementation originally found in
33 GNU libg++.
34
35 Beside this it is also shared between the normal and wide character
36 implementation as defined in ISO/IEC 9899:1990/Amendment 1:1995. */
37
38#ifndef COMPILE_WPRINTF
39# define CHAR_T char
40# define UCHAR_T unsigned char
41# define INT_T int
42# define L_(Str) Str
43# define ISDIGIT(Ch) isdigit (Ch)
44
45# ifdef USE_IN_LIBIO
84384f5b 46# define PUT(F, S, N) _IO_sputn ((F), (S), (N))
299a95b9
RM		 47# define PAD(Padchar) \
48 if (width > 0) \
84384f5b 49 done += _IO_padn (s, (Padchar), width)
299a95b9
RM		 50# else
51# define PUTC(C, F) putc (C, F)
52ssize_t __printf_pad __P ((FILE *, char pad, size_t n));
53# define PAD(Padchar) \
54 if (width > 0) \
84384f5b
UD		 55 { ssize_t __res = __printf_pad (s, (Padchar), width); \
56 if (__res == -1) return -1; \
57 done += __res; }
299a95b9
RM		 58# endif
59#else
60# define vfprintf vfwprintf
61# define CHAR_T wchar_t
62# define UCHAR_T uwchar_t
63# define INT_T wint_t
64# define L_(Str) L##Str
65# define ISDIGIT(Ch) iswdigit (Ch)
66
67# ifdef USE_IN_LIBIO
84384f5b 68# define PUT(F, S, N) _IO_sputn ((F), (S), (N))
7c713e28 69# define PAD(Padchar) \
299a95b9 70 if (width > 0) \
84384f5b 71 done += _IO_wpadn (s, (Padchar), width)
299a95b9
RM		 72# else
73# define PUTC(C, F) wputc (C, F)
74ssize_t __wprintf_pad __P ((FILE *, wchar_t pad, size_t n));
7c713e28 75# define PAD(Padchar) \
299a95b9 76 if (width > 0) \
84384f5b
UD		 77 { ssize_t __res = __wprintf_pad (s, (Padchar), width); \
78 if (__res == -1) return -1; \
79 done += __res; }
299a95b9
RM		 80# endif
81#endif
82
a04e7405
RM		 83/* Include the shared code for parsing the format string. */
84#include "printf-parse.h"
85
28f540f4 86
28f540f4
RM		 87#ifdef USE_IN_LIBIO
88/* This code is for use in libio. */
299a95b9 89# include <libioP.h>
7c713e28 90# define PUTC(C, F) _IO_putc_unlocked (C, F)
299a95b9 91# define vfprintf _IO_vfprintf
299a95b9 92# define FILE _IO_FILE
a68b0d31 93# undef va_list
299a95b9
RM		 94# define va_list _IO_va_list
95# undef BUFSIZ
96# define BUFSIZ _IO_BUFSIZ
97# define ARGCHECK(S, Format) \
28f540f4
RM		 98 do \
99 { \
100 /* Check file argument for consistence. */ \
299a95b9 101 CHECK_FILE (S, -1); \
68dbb3a6
UD		 102 if (S->_flags & _IO_NO_WRITES) \
103 { \
104 __set_errno (EBADF); \
105 return -1; \
106 } \
107 if (Format == NULL) \
28f540f4
RM		 108 { \
109 MAYBE_SET_EINVAL; \
110 return -1; \
111 } \
112 } while (0)
299a95b9 113# define UNBUFFERED_P(S) ((S)->_IO_file_flags & _IO_UNBUFFERED)
28f540f4
RM		 114#else /* ! USE_IN_LIBIO */
115/* This code is for use in the GNU C library. */
299a95b9
RM		 116# include <stdio.h>
117# define PUT(F, S, N) fwrite (S, 1, N, F)
118# define ARGCHECK(S, Format) \
28f540f4
RM		 119 do \
120 { \
121 /* Check file argument for consistence. */ \
68dbb3a6
UD		 122 if (!__validfp (S) || !S->__mode.__write) \
123 { \
124 __set_errno (EBADF); \
125 return -1; \
126 } \
127 if (Format == NULL) \
28f540f4 128 { \
c4029823 129 __set_errno (EINVAL); \
28f540f4
RM		 130 return -1; \
131 } \
299a95b9 132 if (!S->__seen) \
28f540f4 133 { \
299a95b9 134 if (__flshfp (S, EOF) == EOF) \
28f540f4
RM		 135 return -1; \
136 } \
299a95b9
RM		 137 } \
138 while (0)
139# define UNBUFFERED_P(s) ((s)->__buffer == NULL)
46ec036d
UD		 140
141/* XXX These declarations should go as soon as the stdio header files
142 have these prototypes. */
143extern void __flockfile (FILE *);
144extern void __funlockfile (FILE *);
28f540f4
RM		 145#endif /* USE_IN_LIBIO */
146
147
299a95b9 148#define outchar(Ch) \
28f540f4
RM		 149 do \
150 { \
299a95b9 151 register const int outc = (Ch); \
77a58cad 152 if (PUTC (outc, s) == EOF) \
28f540f4
RM		 153 return -1; \
154 else \
155 ++done; \
299a95b9
RM		 156 } \
157 while (0)
28f540f4 158
299a95b9 159#define outstring(String, Len) \
28f540f4
RM		 160 do \
161 { \
ba1ffaa1 162 if ((size_t) PUT (s, (String), (Len)) != (size_t) (Len)) \
299a95b9 163 return -1; \
ba1ffaa1 164 done += (Len); \
299a95b9
RM		 165 } \
166 while (0)
28f540f4 167
299a95b9
RM		 168/* For handling long_double and longlong we use the same flag. */
169#ifndef is_longlong
170# define is_longlong is_long_double
171#endif
172
fafaa44e 173
299a95b9
RM		 174/* Global variables. */
175static const char null[] = "(null)";
28f540f4 176
28f540f4 177
299a95b9 178/* Helper function to provide temporary buffering for unbuffered streams. */
dfd2257a
UD		 179static int buffered_vfprintf __P ((FILE *stream, const CHAR_T *fmt, va_list))
180 internal_function;
299a95b9
RM		 181
182/* Handle unknown format specifier. */
183static int printf_unknown __P ((FILE *, const struct printf_info *,
184 const void *const *));
28f540f4 185
299a95b9 186/* Group digits of number string. */
dfd2257a
UD		 187static char *group_number __P ((CHAR_T *, CHAR_T *, const CHAR_T *, wchar_t))
188 internal_function;
28f540f4 189
a04e7405 190
299a95b9 191/* The function itself. */
28f540f4 192int
299a95b9 193vfprintf (FILE *s, const CHAR_T *format, va_list ap)
28f540f4
RM		 194{
195 /* The character used as thousands separator. */
196 wchar_t thousands_sep;
197
198 /* The string describing the size of groups of digits. */
a04e7405
RM		 199 const char *grouping;
200
299a95b9
RM		 201 /* Place to accumulate the result. */
202 int done;
a04e7405 203
299a95b9
RM		 204 /* Current character in format string. */
205 const UCHAR_T *f;
28f540f4 206
a04e7405 207 /* End of leading constant string. */
299a95b9
RM		 208 const UCHAR_T *lead_str_end;
209
210 /* Points to next format specifier. */
211 const UCHAR_T *end_of_spec;
212
213 /* Buffer intermediate results. */
214 char work_buffer[1000];
215#define workend (&work_buffer[sizeof (work_buffer) - 1])
216
217 /* State for restartable multibyte character handling functions. */
218 mbstate_t mbstate;
219
220 /* We have to save the original argument pointer. */
221 va_list ap_save;
28f540f4 222
299a95b9
RM		 223 /* Count number of specifiers we already processed. */
224 int nspecs_done;
225
47707456
UD		 226 /* For the %m format we may need the current `errno' value. */
227 int save_errno = errno;
228
299a95b9
RM		 229
230 /* This table maps a character into a number representing a
231 class. In each step there is a destination label for each
232 class. */
233 static const int jump_table[] =
234 {
235 /* ' ' */ 1, 0, 0, /* '#' */ 4,
236 0, /* '%' */ 14, 0, /* '\''*/ 6,
237 0, 0, /* '*' */ 7, /* '+' */ 2,
238 0, /* '-' */ 3, /* '.' */ 9, 0,
239 /* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
240 /* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
241 /* '8' */ 8, /* '9' */ 8, 0, 0,
242 0, 0, 0, 0,
2f6d1f1b 243 0, /* 'A' */ 26, 0, /* 'C' */ 25,
299a95b9
RM		 244 0, /* 'E' */ 19, 0, /* 'G' */ 19,
245 0, 0, 0, 0,
246 /* 'L' */ 12, 0, 0, 0,
2c6fe0bd 247 0, 0, 0, /* 'S' */ 21,
299a95b9
RM		 248 0, 0, 0, 0,
249 /* 'X' */ 18, 0, /* 'Z' */ 13, 0,
250 0, 0, 0, 0,
2f6d1f1b 251 0, /* 'a' */ 26, 0, /* 'c' */ 20,
299a95b9
RM		 252 /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
253 /* 'h' */ 10, /* 'i' */ 15, 0, 0,
254 /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
255 /* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
256 0, /* 'u' */ 16, 0, 0,
257 /* 'x' */ 18
258 };
259
260#define NOT_IN_JUMP_RANGE(Ch) ((Ch) < ' ' || (Ch) > 'x')
261#define CHAR_CLASS(Ch) (jump_table[(int) (Ch) - ' '])
262#define JUMP(ChExpr, table) \
263 do \
264 { \
265 const void *ptr; \
266 spec = (ChExpr); \
267 ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
268 : table[CHAR_CLASS (spec)]; \
269 goto *ptr; \
270 } \
271 while (0)
272
273#define STEP0_3_TABLE \
274 /* Step 0: at the beginning. */ \
2f6d1f1b 275 static const void *step0_jumps[27] = \
299a95b9
RM		 276 { \
277 REF (form_unknown), \
278 REF (flag_space), /* for ' ' */ \
279 REF (flag_plus), /* for '+' */ \
280 REF (flag_minus), /* for '-' */ \
281 REF (flag_hash), /* for '<hash>' */ \
282 REF (flag_zero), /* for '0' */ \
283 REF (flag_quote), /* for '\'' */ \
284 REF (width_asterics), /* for '*' */ \
285 REF (width), /* for '1'...'9' */ \
286 REF (precision), /* for '.' */ \
287 REF (mod_half), /* for 'h' */ \
288 REF (mod_long), /* for 'l' */ \
289 REF (mod_longlong), /* for 'L', 'q' */ \
290 REF (mod_size_t), /* for 'Z' */ \
291 REF (form_percent), /* for '%' */ \
292 REF (form_integer), /* for 'd', 'i' */ \
293 REF (form_unsigned), /* for 'u' */ \
294 REF (form_octal), /* for 'o' */ \
295 REF (form_hexa), /* for 'X', 'x' */ \
296 REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
297 REF (form_character), /* for 'c' */ \
2c6fe0bd 298 REF (form_string), /* for 's', 'S' */ \
299a95b9
RM		 299 REF (form_pointer), /* for 'p' */ \
300 REF (form_number), /* for 'n' */ \
2c6fe0bd 301 REF (form_strerror), /* for 'm' */ \
2f6d1f1b
UD		 302 REF (form_wcharacter), /* for 'C' */ \
303 REF (form_floathex) /* for 'A', 'a' */ \
299a95b9
RM		 304 }; \
305 /* Step 1: after processing width. */ \
2f6d1f1b 306 static const void *step1_jumps[27] = \
299a95b9
RM		 307 { \
308 REF (form_unknown), \
309 REF (form_unknown), /* for ' ' */ \
310 REF (form_unknown), /* for '+' */ \
311 REF (form_unknown), /* for '-' */ \
312 REF (form_unknown), /* for '<hash>' */ \
313 REF (form_unknown), /* for '0' */ \
314 REF (form_unknown), /* for '\'' */ \
315 REF (form_unknown), /* for '*' */ \
316 REF (form_unknown), /* for '1'...'9' */ \
317 REF (precision), /* for '.' */ \
318 REF (mod_half), /* for 'h' */ \
319 REF (mod_long), /* for 'l' */ \
320 REF (mod_longlong), /* for 'L', 'q' */ \
321 REF (mod_size_t), /* for 'Z' */ \
322 REF (form_percent), /* for '%' */ \
323 REF (form_integer), /* for 'd', 'i' */ \
324 REF (form_unsigned), /* for 'u' */ \
325 REF (form_octal), /* for 'o' */ \
326 REF (form_hexa), /* for 'X', 'x' */ \
327 REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
328 REF (form_character), /* for 'c' */ \
2c6fe0bd 329 REF (form_string), /* for 's', 'S' */ \
299a95b9
RM		 330 REF (form_pointer), /* for 'p' */ \
331 REF (form_number), /* for 'n' */ \
2c6fe0bd 332 REF (form_strerror), /* for 'm' */ \
2f6d1f1b
UD		 333 REF (form_wcharacter), /* for 'C' */ \
334 REF (form_floathex) /* for 'A', 'a' */ \
299a95b9
RM		 335 }; \
336 /* Step 2: after processing precision. */ \
2f6d1f1b 337 static const void *step2_jumps[27] = \
299a95b9
RM		 338 { \
339 REF (form_unknown), \
340 REF (form_unknown), /* for ' ' */ \
341 REF (form_unknown), /* for '+' */ \
342 REF (form_unknown), /* for '-' */ \
343 REF (form_unknown), /* for '<hash>' */ \
344 REF (form_unknown), /* for '0' */ \
345 REF (form_unknown), /* for '\'' */ \
346 REF (form_unknown), /* for '*' */ \
347 REF (form_unknown), /* for '1'...'9' */ \
348 REF (form_unknown), /* 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' */ \
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', 'G', 'g' */ \
359 REF (form_character), /* for 'c' */ \
2c6fe0bd 360 REF (form_string), /* for 's', 'S' */ \
299a95b9
RM		 361 REF (form_pointer), /* for 'p' */ \
362 REF (form_number), /* for 'n' */ \
2c6fe0bd 363 REF (form_strerror), /* for 'm' */ \
2f6d1f1b
UD		 364 REF (form_wcharacter), /* for 'C' */ \
365 REF (form_floathex) /* for 'A', 'a' */ \
299a95b9 366 }; \
cc3fa755
UD		 367 /* Step 3a: after processing first 'h' modifier. */ \
368 static const void *step3a_jumps[27] = \
369 { \
370 REF (form_unknown), \
371 REF (form_unknown), /* for ' ' */ \
372 REF (form_unknown), /* for '+' */ \
373 REF (form_unknown), /* for '-' */ \
374 REF (form_unknown), /* for '<hash>' */ \
375 REF (form_unknown), /* for '0' */ \
376 REF (form_unknown), /* for '\'' */ \
377 REF (form_unknown), /* for '*' */ \
378 REF (form_unknown), /* for '1'...'9' */ \
379 REF (form_unknown), /* for '.' */ \
380 REF (mod_halfhalf), /* for 'h' */ \
381 REF (form_unknown), /* for 'l' */ \
382 REF (form_unknown), /* for 'L', 'q' */ \
383 REF (form_unknown), /* for 'Z' */ \
384 REF (form_percent), /* for '%' */ \
385 REF (form_integer), /* for 'd', 'i' */ \
386 REF (form_unsigned), /* for 'u' */ \
387 REF (form_octal), /* for 'o' */ \
388 REF (form_hexa), /* for 'X', 'x' */ \
389 REF (form_unknown), /* for 'E', 'e', 'f', 'G', 'g' */ \
390 REF (form_unknown), /* for 'c' */ \
391 REF (form_unknown), /* for 's', 'S' */ \
392 REF (form_unknown), /* for 'p' */ \
393 REF (form_number), /* for 'n' */ \
394 REF (form_unknown), /* for 'm' */ \
395 REF (form_unknown), /* for 'C' */ \
396 REF (form_unknown) /* for 'A', 'a' */ \
397 }; \
398 /* Step 3b: after processing first 'l' modifier. */ \
399 static const void *step3b_jumps[27] = \
299a95b9
RM		 400 { \
401 REF (form_unknown), \
402 REF (form_unknown), /* for ' ' */ \
403 REF (form_unknown), /* for '+' */ \
404 REF (form_unknown), /* for '-' */ \
405 REF (form_unknown), /* for '<hash>' */ \
406 REF (form_unknown), /* for '0' */ \
407 REF (form_unknown), /* for '\'' */ \
408 REF (form_unknown), /* for '*' */ \
409 REF (form_unknown), /* for '1'...'9' */ \
410 REF (form_unknown), /* for '.' */ \
411 REF (form_unknown), /* for 'h' */ \
412 REF (mod_longlong), /* for 'l' */ \
413 REF (form_unknown), /* for 'L', 'q' */ \
414 REF (form_unknown), /* for 'Z' */ \
415 REF (form_percent), /* for '%' */ \
416 REF (form_integer), /* for 'd', 'i' */ \
417 REF (form_unsigned), /* for 'u' */ \
418 REF (form_octal), /* for 'o' */ \
419 REF (form_hexa), /* for 'X', 'x' */ \
420 REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
421 REF (form_character), /* for 'c' */ \
2c6fe0bd 422 REF (form_string), /* for 's', 'S' */ \
299a95b9
RM		 423 REF (form_pointer), /* for 'p' */ \
424 REF (form_number), /* for 'n' */ \
2c6fe0bd 425 REF (form_strerror), /* for 'm' */ \
2f6d1f1b
UD		 426 REF (form_wcharacter), /* for 'C' */ \
427 REF (form_floathex) /* for 'A', 'a' */ \
299a95b9 428 }
28f540f4 429
299a95b9
RM		 430#define STEP4_TABLE \
431 /* Step 4: processing format specifier. */ \
2f6d1f1b 432 static const void *step4_jumps[27] = \
299a95b9
RM		 433 { \
434 REF (form_unknown), \
435 REF (form_unknown), /* for ' ' */ \
436 REF (form_unknown), /* for '+' */ \
437 REF (form_unknown), /* for '-' */ \
438 REF (form_unknown), /* for '<hash>' */ \
439 REF (form_unknown), /* for '0' */ \
440 REF (form_unknown), /* for '\'' */ \
441 REF (form_unknown), /* for '*' */ \
442 REF (form_unknown), /* for '1'...'9' */ \
443 REF (form_unknown), /* for '.' */ \
444 REF (form_unknown), /* for 'h' */ \
445 REF (form_unknown), /* for 'l' */ \
446 REF (form_unknown), /* for 'L', 'q' */ \
447 REF (form_unknown), /* for 'Z' */ \
448 REF (form_percent), /* for '%' */ \
449 REF (form_integer), /* for 'd', 'i' */ \
450 REF (form_unsigned), /* for 'u' */ \
451 REF (form_octal), /* for 'o' */ \
452 REF (form_hexa), /* for 'X', 'x' */ \
453 REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
454 REF (form_character), /* for 'c' */ \
2c6fe0bd 455 REF (form_string), /* for 's', 'S' */ \
299a95b9
RM		 456 REF (form_pointer), /* for 'p' */ \
457 REF (form_number), /* for 'n' */ \
2c6fe0bd 458 REF (form_strerror), /* for 'm' */ \
2f6d1f1b
UD		 459 REF (form_wcharacter), /* for 'C' */ \
460 REF (form_floathex) /* for 'A', 'a' */ \
299a95b9 461 }
a04e7405 462
a04e7405 463
299a95b9 464#define process_arg(fspec) \
edf5b2d7 465 /* Start real work. We know about all flags and modifiers and \
299a95b9
RM		 466 now process the wanted format specifier. */ \
467 LABEL (form_percent): \
468 /* Write a literal "%". */ \
469 outchar ('%'); \
470 break; \
471 \
472 LABEL (form_integer): \
473 /* Signed decimal integer. */ \
474 base = 10; \
475 \
476 if (is_longlong) \
477 { \
478 long long int signed_number; \
479 \
b8fe19fa
RM		 480 if (fspec == NULL) \
481 signed_number = va_arg (ap, long long int); \
482 else \
483 signed_number = args_value[fspec->data_arg].pa_long_long_int; \
299a95b9
RM		 484 \
485 is_negative = signed_number < 0; \
486 number.longlong = is_negative ? (- signed_number) : signed_number; \
487 \
488 goto LABEL (longlong_number); \
489 } \
490 else \
491 { \
492 long int signed_number; \
493 \
b8fe19fa 494 if (fspec == NULL) \
6591c335
UD		 495 { \
496 if (is_long) \
497 signed_number = va_arg (ap, long int); \
498 else /* `char' and `short int' will be promoted to `int'. */ \
499 signed_number = va_arg (ap, int); \
500 } \
b8fe19fa
RM		 501 else \
502 if (is_long) \
503 signed_number = args_value[fspec->data_arg].pa_long_int; \
504 else \
505 signed_number = args_value[fspec->data_arg].pa_int; \
299a95b9
RM		 506 \
507 is_negative = signed_number < 0; \
508 number.word = is_negative ? (- signed_number) : signed_number; \
509 \
510 goto LABEL (number); \
511 } \
512 /* NOTREACHED */ \
513 \
514 LABEL (form_unsigned): \
515 /* Unsigned decimal integer. */ \
516 base = 10; \
517 goto LABEL (unsigned_number); \
518 /* NOTREACHED */ \
519 \
520 LABEL (form_octal): \
521 /* Unsigned octal integer. */ \
522 base = 8; \
523 goto LABEL (unsigned_number); \
524 /* NOTREACHED */ \
525 \
526 LABEL (form_hexa): \
527 /* Unsigned hexadecimal integer. */ \
528 base = 16; \
529 \
530 LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
531 \
cc3fa755 532 /* ISO specifies the `+' and ` ' flags only for signed \
299a95b9
RM		 533 conversions. */ \
534 is_negative = 0; \
535 showsign = 0; \
536 space = 0; \
537 \
538 if (is_longlong) \
539 { \
b8fe19fa
RM		 540 if (fspec == NULL) \
541 number.longlong = va_arg (ap, unsigned long long int); \
542 else \
543 number.longlong = args_value[fspec->data_arg].pa_u_long_long_int; \
299a95b9
RM		 544 \
545 LABEL (longlong_number): \
546 if (prec < 0) \
547 /* Supply a default precision if none was given. */ \
548 prec = 1; \
549 else \
550 /* We have to take care for the '0' flag. If a precision \
551 is given it must be ignored. */ \
552 pad = ' '; \
553 \
554 /* If the precision is 0 and the number is 0 nothing has to \
6591c335
UD		 555 be written for the number, except for the 'o' format in \
556 alternate form. */ \
299a95b9 557 if (prec == 0 && number.longlong == 0) \
6591c335
UD		 558 { \
559 string = workend; \
560 if (base == 8 && alt) \
561 *string-- = '0'; \
562 } \
299a95b9
RM		 563 else \
564 { \
565 /* Put the number in WORK. */ \
566 string = _itoa (number.longlong, workend + 1, base, \
567 spec == 'X'); \
568 string -= 1; \
569 if (group && grouping) \
570 string = group_number (string, workend, grouping, \
571 thousands_sep); \
572 } \
573 /* Simply further test for num != 0. */ \
574 number.word = number.longlong != 0; \
575 } \
576 else \
577 { \
b8fe19fa 578 if (fspec == NULL) \
6591c335
UD		 579 { \
580 if (is_long) \
581 number.word = va_arg (ap, unsigned long int); \
582 else if (!is_short) \
583 number.word = va_arg (ap, unsigned int); \
584 else \
585 number.word = (unsigned short int) va_arg (ap, unsigned int); \
586 } \
299a95b9 587 else \
b8fe19fa
RM		 588 if (is_long) \
589 number.word = args_value[fspec->data_arg].pa_u_long_int; \
cc3fa755
UD		 590 else if (is_char) \
591 number.word = (unsigned char) \
592 args_value[fspec->data_arg].pa_char; \
b8fe19fa
RM		 593 else if (!is_short) \
594 number.word = args_value[fspec->data_arg].pa_u_int; \
595 else \
596 number.word = (unsigned short int) \
597 args_value[fspec->data_arg].pa_u_short_int; \
299a95b9
RM		 598 \
599 LABEL (number): \
600 if (prec < 0) \
601 /* Supply a default precision if none was given. */ \
602 prec = 1; \
603 else \
604 /* We have to take care for the '0' flag. If a precision \
605 is given it must be ignored. */ \
606 pad = ' '; \
607 \
608 /* If the precision is 0 and the number is 0 nothing has to \
6591c335
UD		 609 be written for the number, except for the 'o' format in \
610 alternate form. */ \
299a95b9 611 if (prec == 0 && number.word == 0) \
6591c335
UD		 612 { \
613 string = workend; \
614 if (base == 8 && alt) \
615 *string-- = '0'; \
616 } \
299a95b9
RM		 617 else \
618 { \
619 /* Put the number in WORK. */ \
620 string = _itoa_word (number.word, workend + 1, base, \
621 spec == 'X'); \
622 string -= 1; \
623 if (group && grouping) \
624 string = group_number (string, workend, grouping, \
625 thousands_sep); \
626 } \
627 } \
628 \
629 prec -= workend - string; \
630 \
631 if (prec > 0) \
632 /* Add zeros to the precision. */ \
633 while (prec-- > 0) \
634 *string-- = '0'; \
635 else if (number.word != 0 && alt && base == 8) \
636 /* Add octal marker. */ \
637 *string-- = '0'; \
638 \
639 if (!left) \
640 { \
641 width -= workend - string; \
642 \
643 if (number.word != 0 && alt && base == 16) \
644 /* Account for 0X hex marker. */ \
645 width -= 2; \
646 \
647 if (is_negative || showsign || space) \
648 --width; \
649 \
650 if (pad == '0') \
651 { \
652 while (width-- > 0) \
653 *string-- = '0'; \
654 \
655 if (number.word != 0 && alt && base == 16) \
656 { \
657 *string-- = spec; \
658 *string-- = '0'; \
659 } \
660 \
661 if (is_negative) \
662 *string-- = '-'; \
663 else if (showsign) \
664 *string-- = '+'; \
665 else if (space) \
666 *string-- = ' '; \
667 } \
668 else \
669 { \
670 if (number.word != 0 && alt && base == 16) \
671 { \
672 *string-- = spec; \
673 *string-- = '0'; \
674 } \
675 \
676 if (is_negative) \
677 *string-- = '-'; \
678 else if (showsign) \
679 *string-- = '+'; \
680 else if (space) \
681 *string-- = ' '; \
682 \
683 while (width-- > 0) \
684 *string-- = ' '; \
685 } \
686 \
687 outstring (string + 1, workend - string); \
688 \
689 break; \
690 } \
691 else \
692 { \
693 if (number.word != 0 && alt && base == 16) \
694 { \
695 *string-- = spec; \
696 *string-- = '0'; \
697 } \
698 \
699 if (is_negative) \
700 *string-- = '-'; \
701 else if (showsign) \
702 *string-- = '+'; \
703 else if (space) \
704 *string-- = ' '; \
705 \
706 width -= workend - string; \
707 outstring (string + 1, workend - string); \
708 \
709 PAD (' '); \
710 break; \
711 } \
712 \
713 LABEL (form_float): \
714 { \
715 /* Floating-point number. This is handled by printf_fp.c. */ \
716 extern int __printf_fp __P ((FILE *, const struct printf_info *, \
717 const void **const)); \
718 const void *ptr; \
719 int function_done; \
720 \
299a95b9
RM		 721 if (fspec == NULL) \
722 { \
723 struct printf_info info = { prec: prec, \
724 width: width, \
725 spec: spec, \
726 is_long_double: is_long_double, \
727 is_short: is_short, \
728 is_long: is_long, \
729 alt: alt, \
730 space: space, \
731 left: left, \
732 showsign: showsign, \
733 group: group, \
b8fe19fa
RM		 734 pad: pad, \
735 extra: 0 }; \
736 \
737 if (is_long_double) \
738 the_arg.pa_long_double = va_arg (ap, long double); \
739 else \
740 the_arg.pa_double = va_arg (ap, double); \
741 ptr = (const void *) &the_arg; \
299a95b9
RM		 742 \
743 function_done = __printf_fp (s, &info, &ptr); \
744 } \
745 else \
b8fe19fa
RM		 746 { \
747 ptr = (const void *) &args_value[fspec->data_arg]; \
748 \
749 function_done = __printf_fp (s, &fspec->info, &ptr); \
750 } \
299a95b9
RM		 751 \
752 if (function_done < 0) \
753 /* Error in print handler. */ \
754 return -1; \
755 \
756 done += function_done; \
757 } \
758 break; \
759 \
2f6d1f1b
UD		 760 LABEL (form_floathex): \
761 { \
762 /* FLoating point number printed as hexadecimal number. */ \
763 extern int __printf_fphex __P ((FILE *, const struct printf_info *, \
764 const void **const)); \
765 const void *ptr; \
766 int function_done; \
767 \
768 if (fspec == NULL) \
769 { \
770 struct printf_info info = { prec: prec, \
771 width: width, \
772 spec: spec, \
773 is_long_double: is_long_double, \
774 is_short: is_short, \
775 is_long: is_long, \
776 alt: alt, \
777 space: space, \
778 left: left, \
779 showsign: showsign, \
780 group: group, \
781 pad: pad, \
782 extra: 0 }; \
783 \
784 if (is_long_double) \
785 the_arg.pa_long_double = va_arg (ap, long double); \
786 else \
787 the_arg.pa_double = va_arg (ap, double); \
788 ptr = (const void *) &the_arg; \
789 \
790 function_done = __printf_fphex (s, &info, &ptr); \
791 } \
792 else \
793 { \
794 ptr = (const void *) &args_value[fspec->data_arg]; \
795 \
796 function_done = __printf_fphex (s, &fspec->info, &ptr); \
797 } \
798 \
799 if (function_done < 0) \
800 /* Error in print handler. */ \
801 return -1; \
802 \
803 done += function_done; \
804 } \
805 break; \
806 \
299a95b9
RM		 807 LABEL (form_character): \
808 /* Character. */ \
2c6fe0bd
UD		 809 if (is_long) \
810 goto LABEL (form_wcharacter); \
299a95b9
RM		 811 --width; /* Account for the character itself. */ \
812 if (!left) \
813 PAD (' '); \
b8fe19fa 814 if (fspec == NULL) \
2c6fe0bd 815 outchar ((unsigned char) va_arg (ap, int)); /* Promoted. */ \
b8fe19fa
RM		 816 else \
817 outchar ((unsigned char) args_value[fspec->data_arg].pa_char); \
299a95b9
RM		 818 if (left) \
819 PAD (' '); \
820 break; \
821 \
2c6fe0bd
UD		 822 LABEL (form_wcharacter): \
823 { \
824 /* Wide character. */ \
825 char buf[MB_CUR_MAX]; \
826 mbstate_t mbstate; \
827 size_t len; \
828 \
3c720987 829 memset (&mbstate, '\0', sizeof (mbstate_t)); \
2c6fe0bd
UD		 830 len = __wcrtomb (buf, (fspec == NULL ? va_arg (ap, wint_t) \
831 : args_value[fspec->data_arg].pa_wchar), \
832 &mbstate); \
833 width -= len; \
834 if (!left) \
835 PAD (' '); \
836 outstring (buf, len); \
837 if (left) \
838 PAD (' '); \
839 } \
840 break; \
841 \
299a95b9
RM		 842 LABEL (form_string): \
843 { \
844 size_t len; \
845 \
846 /* The string argument could in fact be `char *' or `wchar_t *'. \
847 But this should not make a difference here. */ \
b8fe19fa
RM		 848 if (fspec == NULL) \
849 string = (char *) va_arg (ap, const char *); \
850 else \
851 string = (char *) args_value[fspec->data_arg].pa_string; \
299a95b9
RM		 852 \
853 /* Entry point for printing other strings. */ \
854 LABEL (print_string): \
855 \
856 if (string == NULL) \
857 { \
858 /* Write "(null)" if there's space. */ \
859 if (prec == -1 || prec >= (int) sizeof (null) - 1) \
860 { \
861 string = (char *) null; \
862 len = sizeof (null) - 1; \
863 } \
864 else \
865 { \
866 string = (char *) ""; \
867 len = 0; \
868 } \
869 } \
2c6fe0bd 870 else if (!is_long && spec != L_('S')) \
299a95b9
RM		 871 { \
872 if (prec != -1) \
2c6fe0bd
UD		 873 /* Search for the end of the string, but don't search past \
874 the length specified by the precision. */ \
875 len = strnlen (string, prec); \
299a95b9
RM		 876 else \
877 len = strlen (string); \
878 } \
879 else \
880 { \
881 const wchar_t *s2 = (const wchar_t *) string; \
07a4742f 882 mbstate_t mbstate; \
299a95b9 883 \
3c720987 884 memset (&mbstate, '\0', sizeof (mbstate_t)); \
23396375 885 len = __wcsrtombs (NULL, &s2, 0, &mbstate); \
299a95b9
RM		 886 if (len == (size_t) -1) \
887 /* Illegal wide-character string. */ \
888 return -1; \
889 \
890 s2 = (const wchar_t *) string; \
299a95b9 891 string = alloca (len + 1); \
3c720987 892 memset (&mbstate, '\0', sizeof (mbstate_t)); \
23396375
UD		 893 (void) __wcsrtombs (string, &s2, prec != -1 ? prec : UINT_MAX, \
894 &mbstate); \
299a95b9
RM		 895 } \
896 \
897 if ((width -= len) < 0) \
898 { \
899 outstring (string, len); \
900 break; \
901 } \
902 \
903 if (!left) \
904 PAD (' '); \
905 outstring (string, len); \
906 if (left) \
907 PAD (' '); \
908 } \
909 break; \
910 \
911 LABEL (form_pointer): \
912 /* Generic pointer. */ \
913 { \
914 const void *ptr; \
b8fe19fa
RM		 915 if (fspec == NULL) \
916 ptr = va_arg (ap, void *); \
917 else \
918 ptr = args_value[fspec->data_arg].pa_pointer; \
299a95b9
RM		 919 if (ptr != NULL) \
920 { \
921 /* If the pointer is not NULL, write it as a %#x spec. */ \
922 base = 16; \
923 number.word = (unsigned long int) ptr; \
924 is_negative = 0; \
925 alt = 1; \
926 group = 0; \
927 spec = 'x'; \
928 goto LABEL (number); \
929 } \
930 else \
931 { \
932 /* Write "(nil)" for a nil pointer. */ \
933 string = (char *) "(nil)"; \
934 /* Make sure the full string "(nil)" is printed. */ \
935 if (prec < 5) \
936 prec = 5; \
937 is_long = 0; /* This is no wide-char string. */ \
938 goto LABEL (print_string); \
939 } \
940 } \
941 /* NOTREACHED */ \
942 \
943 LABEL (form_number): \
944 /* Answer the count of characters written. */ \
b8fe19fa 945 if (fspec == NULL) \
6591c335
UD		 946 { \
947 if (is_longlong) \
948 *(long long int *) va_arg (ap, void *) = done; \
949 else if (is_long) \
950 *(long int *) va_arg (ap, void *) = done; \
951 else if (!is_short) \
952 *(int *) va_arg (ap, void *) = done; \
953 else \
954 *(short int *) va_arg (ap, void *) = done; \
955 } \
299a95b9 956 else \
b8fe19fa
RM		 957 if (is_longlong) \
958 *(long long int *) args_value[fspec->data_arg].pa_pointer = done; \
959 else if (is_long) \
960 *(long int *) args_value[fspec->data_arg].pa_pointer = done; \
961 else if (!is_short) \
962 *(int *) args_value[fspec->data_arg].pa_pointer = done; \
963 else \
964 *(short int *) args_value[fspec->data_arg].pa_pointer = done; \
299a95b9
RM		 965 break; \
966 \
967 LABEL (form_strerror): \
968 /* Print description of error ERRNO. */ \
310b3460
UD		 969 string = \
970 (char *) __strerror_r (save_errno, work_buffer, sizeof work_buffer); \
299a95b9
RM		 971 is_long = 0; /* This is no wide-char string. */ \
972 goto LABEL (print_string)
973
974
975 /* Sanity check of arguments. */
28f540f4
RM		 976 ARGCHECK (s, format);
977
978 if (UNBUFFERED_P (s))
979 /* Use a helper function which will allocate a local temporary buffer
980 for the stream and then call us again. */
a04e7405 981 return buffered_vfprintf (s, format, ap);
28f540f4 982
299a95b9
RM		 983 /* Initialize local variables. */
984 done = 0;
985 grouping = (const char *) -1;
7cc27f44 986#ifdef __va_copy
2f6d1f1b 987 /* This macro will be available soon in gcc's <stdarg.h>. We need it
7cc27f44
UD		 988 since on some systems `va_list' is not an integral type. */
989 __va_copy (ap_save, ap);
990#else
299a95b9 991 ap_save = ap;
7cc27f44 992#endif
299a95b9 993 nspecs_done = 0;
28f540f4 994
3c720987
UD		 995 /* Put state for processing format string in initial state. */
996 memset (&mbstate, '\0', sizeof (mbstate_t));
997
299a95b9
RM		 998 /* Find the first format specifier. */
999 f = lead_str_end = find_spec (format, &mbstate);
28f540f4 1000
7c713e28 1001 /* Lock stream. */
46ec036d
UD		 1002#ifdef USE_IN_LIBIO
1003 __libc_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, s);
1004 _IO_flockfile (s);
1005#else
f0f1bf85 1006 __libc_cleanup_region_start ((void (*) (void *)) &__funlockfile, s);
d41c6f61 1007 __flockfile (s);
46ec036d 1008#endif
aa1075ea 1009
299a95b9
RM		 1010 /* Write the literal text before the first format. */
1011 outstring ((const UCHAR_T *) format,
1012 lead_str_end - (const UCHAR_T *) format);
a04e7405 1013
299a95b9
RM		 1014 /* If we only have to print a simple string, return now. */
1015 if (*f == L_('\0'))
edf5b2d7 1016 goto all_done;
a04e7405 1017
299a95b9
RM		 1018 /* Process whole format string. */
1019 do
28f540f4 1020 {
299a95b9
RM		 1021#define REF(Name) &&do_##Name
1022#define LABEL(Name) do_##Name
1023 STEP0_3_TABLE;
1024 STEP4_TABLE;
1025
b8fe19fa 1026 union printf_arg *args_value; /* This is not used here but ... */
299a95b9
RM		 1027 int is_negative; /* Flag for negative number. */
1028 union
1029 {
1030 unsigned long long int longlong;
1031 unsigned long int word;
1032 } number;
1033 int base;
1034 union printf_arg the_arg;
1035 char *string; /* Pointer to argument string. */
1036 int alt = 0; /* Alternate format. */
1037 int space = 0; /* Use space prefix if no sign is needed. */
1038 int left = 0; /* Left-justify output. */
1039 int showsign = 0; /* Always begin with plus or minus sign. */
1040 int group = 0; /* Print numbers according grouping rules. */
1041 int is_long_double = 0; /* Argument is long double/ long long int. */
1042 int is_short = 0; /* Argument is long int. */
1043 int is_long = 0; /* Argument is short int. */
cc3fa755 1044 int is_char = 0; /* Argument is promoted (unsigned) char. */
299a95b9
RM		 1045 int width = 0; /* Width of output; 0 means none specified. */
1046 int prec = -1; /* Precision of output; -1 means none specified. */
1047 char pad = ' '; /* Padding character. */
1048 CHAR_T spec;
1049
1050 /* Get current character in format string. */
1051 JUMP (*++f, step0_jumps);
1052
1053 /* ' ' flag. */
1054 LABEL (flag_space):
1055 space = 1;
1056 JUMP (*++f, step0_jumps);
1057
1058 /* '+' flag. */
1059 LABEL (flag_plus):
1060 showsign = 1;
1061 JUMP (*++f, step0_jumps);
1062
1063 /* The '-' flag. */
1064 LABEL (flag_minus):
1065 left = 1;
1066 pad = L_(' ');
1067 JUMP (*++f, step0_jumps);
1068
1069 /* The '#' flag. */
1070 LABEL (flag_hash):
1071 alt = 1;
1072 JUMP (*++f, step0_jumps);
1073
1074 /* The '0' flag. */
1075 LABEL (flag_zero):
1076 if (!left)
1077 pad = L_('0');
1078 JUMP (*++f, step0_jumps);
1079
1080 /* The '\'' flag. */
1081 LABEL (flag_quote):
1082 group = 1;
1083
1084 /* XXX Completely wrong. Use wctob. */
1085 if (grouping == (const char *) -1)
28f540f4 1086 {
299a95b9
RM		 1087 /* Figure out the thousands separator character. */
1088 if (mbtowc (&thousands_sep,
1089 _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
1090 strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP))) <= 0)
1091 thousands_sep = (wchar_t)
1092 *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1093 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1094 if (*grouping == '\0' || *grouping == CHAR_MAX
1095 || thousands_sep == L'\0')
1096 grouping = NULL;
28f540f4 1097 }
299a95b9 1098 JUMP (*++f, step0_jumps);
28f540f4 1099
299a95b9
RM		 1100 /* Get width from argument. */
1101 LABEL (width_asterics):
1102 {
1103 const UCHAR_T *tmp; /* Temporary value. */
a04e7405 1104
299a95b9
RM		 1105 tmp = ++f;
1106 if (ISDIGIT (*tmp) && read_int (&tmp) && *tmp == L_('$'))
a641835a 1107 /* The width comes from a positional parameter. */
299a95b9 1108 goto do_positional;
a04e7405 1109
299a95b9 1110 width = va_arg (ap, int);
a04e7405 1111
299a95b9
RM		 1112 /* Negative width means left justified. */
1113 if (width < 0)
1114 {
1115 width = -width;
1116 pad = L_(' ');
1117 left = 1;
1118 }
1119 }
1120 JUMP (*f, step1_jumps);
1121
1122 /* Given width in format string. */
1123 LABEL (width):
1124 width = read_int (&f);
1125 if (*f == L_('$'))
a641835a 1126 /* Oh, oh. The argument comes from a positional parameter. */
299a95b9
RM		 1127 goto do_positional;
1128 JUMP (*f, step1_jumps);
1129
1130 LABEL (precision):
1131 ++f;
1132 if (*f == L_('*'))
1133 {
1134 const UCHAR_T *tmp; /* Temporary value. */
a04e7405 1135
299a95b9
RM		 1136 tmp = ++f;
1137 if (ISDIGIT (*tmp) && read_int (&tmp) > 0 && *tmp == L_('$'))
a641835a 1138 /* The precision comes from a positional parameter. */
299a95b9 1139 goto do_positional;
28f540f4 1140
299a95b9 1141 prec = va_arg (ap, int);
28f540f4 1142
299a95b9
RM		 1143 /* If the precision is negative the precision is omitted. */
1144 if (prec < 0)
1145 prec = -1;
1146 }
1147 else if (ISDIGIT (*f))
1148 prec = read_int (&f);
1149 else
1150 prec = 0;
1151 JUMP (*f, step2_jumps);
1152
cc3fa755 1153 /* Process 'h' modifier. There might another 'h' following. */
299a95b9
RM		 1154 LABEL (mod_half):
1155 is_short = 1;
cc3fa755
UD		 1156 JUMP (*++f, step3a_jumps);
1157
1158 /* Process 'hh' modifier. */
1159 LABEL (mod_halfhalf):
1160 is_short = 0;
1161 is_char = 1;
299a95b9
RM		 1162 JUMP (*++f, step4_jumps);
1163
cc3fa755 1164 /* Process 'l' modifier. There might another 'l' following. */
299a95b9
RM		 1165 LABEL (mod_long):
1166 is_long = 1;
cc3fa755 1167 JUMP (*++f, step3b_jumps);
299a95b9
RM		 1168
1169 /* Process 'L', 'q', or 'll' modifier. No other modifier is
1170 allowed to follow. */
1171 LABEL (mod_longlong):
1172 is_long_double = 1;
1173 JUMP (*++f, step4_jumps);
1174
1175 LABEL (mod_size_t):
1176 is_longlong = sizeof (size_t) > sizeof (unsigned long int);
1177 is_long = sizeof (size_t) > sizeof (unsigned int);
1178 JUMP (*++f, step4_jumps);
1179
299a95b9
RM		 1180 /* Process current format. */
1181 while (1)
28f540f4 1182 {
299a95b9
RM		 1183 process_arg (((struct printf_spec *) NULL));
1184
1185 LABEL (form_unknown):
1186 if (spec == L_('\0'))
7c713e28
RM		 1187 {
1188 /* The format string ended before the specifier is complete. */
edf5b2d7
UD		 1189 done = -1;
1190 goto all_done;
7c713e28 1191 }
299a95b9
RM		 1192
1193 /* If we are in the fast loop force entering the complicated
1194 one. */
1195 goto do_positional;
28f540f4 1196 }
299a95b9 1197
3e5f5557
UD		 1198 /* The format is correctly handled. */
1199 ++nspecs_done;
1200
299a95b9
RM		 1201 /* Look for next format specifier. */
1202 f = find_spec ((end_of_spec = ++f), &mbstate);
1203
1204 /* Write the following constant string. */
1205 outstring (end_of_spec, f - end_of_spec);
a04e7405 1206 }
299a95b9 1207 while (*f != L_('\0'));
28f540f4 1208
edf5b2d7
UD		 1209 /* Unlock stream and return. */
1210 goto all_done;
299a95b9
RM		 1211
1212 /* Here starts the more complex loop to handle positional parameters. */
1213do_positional:
1214 {
1215 /* Array with information about the needed arguments. This has to
6d52618b 1216 be dynamically extensible. */
299a95b9
RM		 1217 size_t nspecs = 0;
1218 size_t nspecs_max = 32; /* A more or less arbitrary start value. */
1219 struct printf_spec *specs
1220 = alloca (nspecs_max * sizeof (struct printf_spec));
1221
1222 /* The number of arguments the format string requests. This will
1223 determine the size of the array needed to store the argument
1224 attributes. */
1225 size_t nargs = 0;
1226 int *args_type;
1227 union printf_arg *args_value;
1228
1229 /* Positional parameters refer to arguments directly. This could
1230 also determine the maximum number of arguments. Track the
1231 maximum number. */
1232 size_t max_ref_arg = 0;
1233
1234 /* Just a counter. */
ba1ffaa1 1235 size_t cnt;
299a95b9
RM		 1236
1237
1238 if (grouping == (const char *) -1)
a04e7405 1239 {
299a95b9
RM		 1240 /* XXX Use wctob. But this is incompatible for now. */
1241 /* Figure out the thousands separator character. */
1242 if (mbtowc (&thousands_sep,
1243 _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
1244 strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP))) <= 0)
1245 thousands_sep = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
1246 grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
1247 if (*grouping == '\0' || *grouping == CHAR_MAX
1248 || thousands_sep == L'\0')
1249 grouping = NULL;
1250 }
1251
1252 for (f = lead_str_end; *f != '\0'; f = specs[nspecs++].next_fmt)
1253 {
1254 if (nspecs >= nspecs_max)
1255 {
1256 /* Extend the array of format specifiers. */
1257 struct printf_spec *old = specs;
1258
1259 nspecs_max *= 2;
1260 specs = alloca (nspecs_max * sizeof (struct printf_spec));
1261
1262 if (specs == &old[nspecs])
1263 /* Stack grows up, OLD was the last thing allocated;
1264 extend it. */
1265 nspecs_max += nspecs_max / 2;
1266 else
1267 {
1268 /* Copy the old array's elements to the new space. */
1269 memcpy (specs, old, nspecs * sizeof (struct printf_spec));
1270 if (old == &specs[nspecs])
1271 /* Stack grows down, OLD was just below the new
1272 SPECS. We can use that space when the new space
1273 runs out. */
1274 nspecs_max += nspecs_max / 2;
1275 }
1276 }
1277
1278 /* Parse the format specifier. */
ec42724d
RM		 1279 nargs += parse_one_spec (f, nargs, &specs[nspecs], &max_ref_arg,
1280 &mbstate);
299a95b9
RM		 1281 }
1282
1283 /* Determine the number of arguments the format string consumes. */
1284 nargs = MAX (nargs, max_ref_arg);
1285
1286 /* Allocate memory for the argument descriptions. */
1287 args_type = alloca (nargs * sizeof (int));
1288 memset (args_type, 0, nargs * sizeof (int));
1289 args_value = alloca (nargs * sizeof (union printf_arg));
1290
1291 /* XXX Could do sanity check here: If any element in ARGS_TYPE is
1292 still zero after this loop, format is invalid. For now we
1293 simply use 0 as the value. */
1294
1295 /* Fill in the types of all the arguments. */
1296 for (cnt = 0; cnt < nspecs; ++cnt)
1297 {
1298 /* If the width is determined by an argument this is an int. */
1299 if (specs[cnt].width_arg != -1)
1300 args_type[specs[cnt].width_arg] = PA_INT;
1301
1302 /* If the precision is determined by an argument this is an int. */
1303 if (specs[cnt].prec_arg != -1)
1304 args_type[specs[cnt].prec_arg] = PA_INT;
1305
1306 switch (specs[cnt].ndata_args)
1307 {
1308 case 0: /* No arguments. */
1309 break;
1310 case 1: /* One argument; we already have the type. */
1311 args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
1312 break;
1313 default:
1314 /* We have more than one argument for this format spec.
1315 We must call the arginfo function again to determine
1316 all the types. */
1317 (void) (*__printf_arginfo_table[specs[cnt].info.spec])
1318 (&specs[cnt].info,
1319 specs[cnt].ndata_args, &args_type[specs[cnt].data_arg]);
1320 break;
1321 }
1322 }
1323
1324 /* Now we know all the types and the order. Fill in the argument
1325 values. */
7cc27f44 1326 for (cnt = 0; cnt < nargs; ++cnt)
299a95b9
RM		 1327 switch (args_type[cnt])
1328 {
a04e7405 1329#define T(tag, mem, type) \
299a95b9 1330 case tag: \
7cc27f44 1331 args_value[cnt].mem = va_arg (ap_save, type); \
299a95b9 1332 break
a04e7405
RM		 1333
1334 T (PA_CHAR, pa_char, int); /* Promoted. */
2c6fe0bd 1335 T (PA_WCHAR, pa_wchar, wint_t);
a04e7405
RM		 1336 T (PA_INT|PA_FLAG_SHORT, pa_short_int, int); /* Promoted. */
1337 T (PA_INT, pa_int, int);
1338 T (PA_INT|PA_FLAG_LONG, pa_long_int, long int);
1339 T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
1340 T (PA_FLOAT, pa_float, double); /* Promoted. */
1341 T (PA_DOUBLE, pa_double, double);
1342 T (PA_DOUBLE|PA_FLAG_LONG_DOUBLE, pa_long_double, long double);
1343 T (PA_STRING, pa_string, const char *);
2c6fe0bd 1344 T (PA_WSTRING, pa_wstring, const wchar_t *);
a04e7405
RM		 1345 T (PA_POINTER, pa_pointer, void *);
1346#undef T
299a95b9
RM		 1347 default:
1348 if ((args_type[cnt] & PA_FLAG_PTR) != 0)
7cc27f44 1349 args_value[cnt].pa_pointer = va_arg (ap_save, void *);
299a95b9
RM		 1350 else
1351 args_value[cnt].pa_long_double = 0.0;
1352 break;
1353 }
a04e7405 1354
299a95b9 1355 /* Now walk through all format specifiers and process them. */
ba1ffaa1 1356 for (; (size_t) nspecs_done < nspecs; ++nspecs_done)
299a95b9
RM		 1357 {
1358#undef REF
1359#define REF(Name) &&do2_##Name
1360#undef LABEL
1361#define LABEL(Name) do2_##Name
1362 STEP4_TABLE;
1363
1364 int is_negative;
1365 union
28f540f4 1366 {
299a95b9
RM		 1367 unsigned long long int longlong;
1368 unsigned long int word;
1369 } number;
1370 int base;
1371 union printf_arg the_arg;
1372 char *string; /* Pointer to argument string. */
1373
1374 /* Fill variables from values in struct. */
1375 int alt = specs[nspecs_done].info.alt;
1376 int space = specs[nspecs_done].info.space;
1377 int left = specs[nspecs_done].info.left;
1378 int showsign = specs[nspecs_done].info.showsign;
1379 int group = specs[nspecs_done].info.group;
1380 int is_long_double = specs[nspecs_done].info.is_long_double;
6591c335
UD		 1381 int is_short = specs[nspecs_done].info.is_short;
1382 int is_char = specs[nspecs_done].info.is_char;
299a95b9
RM		 1383 int is_long = specs[nspecs_done].info.is_long;
1384 int width = specs[nspecs_done].info.width;
1385 int prec = specs[nspecs_done].info.prec;
1386 char pad = specs[nspecs_done].info.pad;
1387 CHAR_T spec = specs[nspecs_done].info.spec;
1388
1389 /* Fill in last information. */
1390 if (specs[nspecs_done].width_arg != -1)
1391 {
1392 /* Extract the field width from an argument. */
1393 specs[nspecs_done].info.width =
1394 args_value[specs[nspecs_done].width_arg].pa_int;
1395
1396 if (specs[nspecs_done].info.width < 0)
1397 /* If the width value is negative left justification is
1398 selected and the value is taken as being positive. */
1399 {
1400 specs[nspecs_done].info.width *= -1;
1401 left = specs[nspecs_done].info.left = 1;
1402 }
1403 width = specs[nspecs_done].info.width;
1404 }
a04e7405 1405
299a95b9
RM		 1406 if (specs[nspecs_done].prec_arg != -1)
1407 {
1408 /* Extract the precision from an argument. */
1409 specs[nspecs_done].info.prec =
1410 args_value[specs[nspecs_done].prec_arg].pa_int;
28f540f4 1411
299a95b9
RM		 1412 if (specs[nspecs_done].info.prec < 0)
1413 /* If the precision is negative the precision is
1414 omitted. */
1415 specs[nspecs_done].info.prec = -1;
a04e7405 1416
299a95b9
RM		 1417 prec = specs[nspecs_done].info.prec;
1418 }
28f540f4 1419
299a95b9
RM		 1420 /* Process format specifiers. */
1421 while (1)
1422 {
1423 JUMP (spec, step4_jumps);
28f540f4 1424
299a95b9 1425 process_arg ((&specs[nspecs_done]));
28f540f4 1426
299a95b9
RM		 1427 LABEL (form_unknown):
1428 {
1429 extern printf_function **__printf_function_table;
1430 int function_done;
1431 printf_function *function;
1432 unsigned int i;
1433 const void **ptr;
28f540f4 1434
299a95b9
RM		 1435 function =
1436 (__printf_function_table == NULL ? NULL :
1437 __printf_function_table[specs[nspecs_done].info.spec]);
28f540f4 1438
299a95b9
RM		 1439 if (function == NULL)
1440 function = &printf_unknown;
a04e7405 1441
299a95b9
RM		 1442 ptr = alloca (specs[nspecs_done].ndata_args
1443 * sizeof (const void *));
1444
1445 /* Fill in an array of pointers to the argument values. */
1446 for (i = 0; i < specs[nspecs_done].ndata_args; ++i)
1447 ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
28f540f4 1448
299a95b9
RM		 1449 /* Call the function. */
1450 function_done = (*function) (s, &specs[nspecs_done].info, ptr);
1451
6d52618b 1452 /* If an error occurred we don't have information about #
299a95b9
RM		 1453 of chars. */
1454 if (function_done < 0)
7c713e28 1455 {
edf5b2d7
UD		 1456 done = -1;
1457 goto all_done;
7c713e28 1458 }
299a95b9
RM		 1459
1460 done += function_done;
1461 }
1462 break;
28f540f4 1463 }
28f540f4 1464
299a95b9
RM		 1465 /* Write the following constant string. */
1466 outstring (specs[nspecs_done].end_of_fmt,
1467 specs[nspecs_done].next_fmt
1468 - specs[nspecs_done].end_of_fmt);
1469 }
1470 }
28f540f4 1471
edf5b2d7 1472all_done:
7c713e28 1473 /* Unlock the stream. */
edf5b2d7 1474 __libc_cleanup_region_end (1);
aa1075ea 1475
28f540f4
RM		 1476 return done;
1477}
1478
42d2676e 1479#ifdef USE_IN_LIBIO
77a58cad
RM		 1480# undef vfprintf
1481# ifdef strong_alias
1482/* This is for glibc. */
299a95b9 1483strong_alias (_IO_vfprintf, vfprintf);
77a58cad
RM		 1484# else
1485# if defined __ELF__ || defined __GNU_LIBRARY__
1486# include <gnu-stabs.h>
1487# ifdef weak_alias
1488weak_alias (_IO_vfprintf, vfprintf);
1489# endif
1490# endif
1491# endif
42d2676e 1492#endif
299a95b9 1493\f
a04e7405
RM		 1494/* Handle an unknown format specifier. This prints out a canonicalized
1495 representation of the format spec itself. */
28f540f4 1496static int
299a95b9
RM		 1497printf_unknown (FILE *s, const struct printf_info *info,
1498 const void *const *args)
1499
28f540f4
RM		 1500{
1501 int done = 0;
299a95b9 1502 char work_buffer[BUFSIZ];
28f540f4 1503 register char *w;
28f540f4 1504
a04e7405 1505 outchar ('%');
28f540f4
RM		 1506
1507 if (info->alt)
1508 outchar ('#');
1509 if (info->group)
1510 outchar ('\'');
1511 if (info->showsign)
1512 outchar ('+');
1513 else if (info->space)
1514 outchar (' ');
1515 if (info->left)
1516 outchar ('-');
1517 if (info->pad == '0')
1518 outchar ('0');
1519
a04e7405 1520 if (info->width != 0)
28f540f4 1521 {
299a95b9 1522 w = _itoa_word (info->width, workend + 1, 10, 0);
2f6d1f1b
UD		 1523 while (w <= workend)
1524 outchar (*w++);
28f540f4 1525 }
28f540f4
RM		 1526
1527 if (info->prec != -1)
1528 {
a04e7405 1529 outchar ('.');
299a95b9 1530 w = _itoa_word (info->prec, workend + 1, 10, 0);
2f6d1f1b
UD		 1531 while (w <= workend)
1532 outchar (*w++);
28f540f4
RM		 1533 }
1534
a04e7405
RM		 1535 if (info->spec != '\0')
1536 outchar (info->spec);
28f540f4
RM		 1537
1538 return done;
1539}
1540\f
1541/* Group the digits according to the grouping rules of the current locale.
1542 The interpretation of GROUPING is as in `struct lconv' from <locale.h>. */
28f540f4 1543static char *
dfd2257a 1544internal_function
299a95b9 1545group_number (CHAR_T *w, CHAR_T *rear_ptr, const CHAR_T *grouping,
28f540f4
RM		 1546 wchar_t thousands_sep)
1547{
1548 int len;
1549 char *src, *s;
1550
1551 /* We treat all negative values like CHAR_MAX. */
1552
feb3c934 1553 if (*grouping == CHAR_MAX || *grouping <= 0)
28f540f4
RM		 1554 /* No grouping should be done. */
1555 return w;
1556
1557 len = *grouping;
1558
1559 /* Copy existing string so that nothing gets overwritten. */
299a95b9 1560 src = (char *) alloca (rear_ptr - w);
86187531 1561 s = (char *) __mempcpy (src, w + 1, rear_ptr - w) - 1;
299a95b9 1562 w = rear_ptr;
28f540f4
RM		 1563
1564 /* Process all characters in the string. */
1565 while (s >= src)
1566 {
1567 *w-- = *s--;
1568
1569 if (--len == 0 && s >= src)
1570 {
1571 /* A new group begins. */
1572 *w-- = thousands_sep;
1573
1574 len = *grouping++;
1575 if (*grouping == '\0')
1576 /* The previous grouping repeats ad infinitum. */
1577 --grouping;
60c96635
UD		 1578 else if (*grouping == CHAR_MAX
1579#if CHAR_MIN < 0
1580 || *grouping < 0
1581#endif
1582 )
28f540f4
RM		 1583 {
1584 /* No further grouping to be done.
1585 Copy the rest of the number. */
1586 do
1587 *w-- = *s--;
1588 while (s >= src);
1589 break;
1590 }
1591 }
1592 }
28f540f4
RM		 1593 return w;
1594}
1595\f
1596#ifdef USE_IN_LIBIO
1597/* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
1598struct helper_file
1599 {
1600 struct _IO_FILE_plus _f;
1601 _IO_FILE *_put_stream;
c4029823
UD		 1602#ifdef _IO_MTSAFE_IO
1603 _IO_lock_t lock;
1604#endif
28f540f4
RM		 1605 };
1606
1607static int
522548fb 1608_IO_helper_overflow (_IO_FILE *s, int c)
28f540f4
RM		 1609{
1610 _IO_FILE *target = ((struct helper_file*) s)->_put_stream;
1611 int used = s->_IO_write_ptr - s->_IO_write_base;
1612 if (used)
1613 {
1614 _IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
1615 s->_IO_write_ptr -= written;
1616 }
7c713e28 1617 return PUTC (c, s);
28f540f4
RM		 1618}
1619
1620static const struct _IO_jump_t _IO_helper_jumps =
299a95b9
RM		 1621{
1622 JUMP_INIT_DUMMY,
1623 JUMP_INIT (finish, _IO_default_finish),
1624 JUMP_INIT (overflow, _IO_helper_overflow),
1625 JUMP_INIT (underflow, _IO_default_underflow),
1626 JUMP_INIT (uflow, _IO_default_uflow),
1627 JUMP_INIT (pbackfail, _IO_default_pbackfail),
1628 JUMP_INIT (xsputn, _IO_default_xsputn),
1629 JUMP_INIT (xsgetn, _IO_default_xsgetn),
1630 JUMP_INIT (seekoff, _IO_default_seekoff),
1631 JUMP_INIT (seekpos, _IO_default_seekpos),
1632 JUMP_INIT (setbuf, _IO_default_setbuf),
1633 JUMP_INIT (sync, _IO_default_sync),
1634 JUMP_INIT (doallocate, _IO_default_doallocate),
1635 JUMP_INIT (read, _IO_default_read),
1636 JUMP_INIT (write, _IO_default_write),
1637 JUMP_INIT (seek, _IO_default_seek),
1638 JUMP_INIT (close, _IO_default_close),
1639 JUMP_INIT (stat, _IO_default_stat)
1640};
28f540f4
RM		 1641
1642static int
dfd2257a 1643internal_function
299a95b9
RM		 1644buffered_vfprintf (register _IO_FILE *s, const CHAR_T *format,
1645 _IO_va_list args)
28f540f4
RM		 1646{
1647 char buf[_IO_BUFSIZ];
1648 struct helper_file helper;
1649 register _IO_FILE *hp = (_IO_FILE *) &helper;
1650 int result, to_flush;
1651
1652 /* Initialize helper. */
1653 helper._put_stream = s;
1654 hp->_IO_write_base = buf;
1655 hp->_IO_write_ptr = buf;
1656 hp->_IO_write_end = buf + sizeof buf;
1657 hp->_IO_file_flags = _IO_MAGIC|_IO_NO_READS;
bd355af0
UD		 1658#if _IO_JUMPS_OFFSET
1659 hp->_vtable_offset = 0;
1660#endif
c4029823
UD		 1661#ifdef _IO_MTSAFE_IO
1662 hp->_lock = &helper.lock;
84384f5b 1663 __libc_lock_init (*hp->_lock);
c4029823 1664#endif
96aa2d94
RM		 1665 _IO_JUMPS (hp) = (struct _IO_jump_t *) &_IO_helper_jumps;
1666
28f540f4
RM		 1667 /* Now print to helper instead. */
1668 result = _IO_vfprintf (hp, format, args);
1669
1670 /* Now flush anything from the helper to the S. */
1671 if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
1672 {
ba1ffaa1 1673 if ((int) _IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
28f540f4
RM		 1674 return -1;
1675 }
1676
1677 return result;
1678}
1679
1680#else /* !USE_IN_LIBIO */
1681
1682static int
dfd2257a 1683internal_function
299a95b9 1684buffered_vfprintf (register FILE *s, const CHAR_T *format, va_list args)
28f540f4
RM		 1685{
1686 char buf[BUFSIZ];
1687 int result;
1688
1689 s->__bufp = s->__buffer = buf;
1690 s->__bufsize = sizeof buf;
1691 s->__put_limit = s->__buffer + s->__bufsize;
1692 s->__get_limit = s->__buffer;
1693
1694 /* Now use buffer to print. */
1695 result = vfprintf (s, format, args);
1696
1697 if (fflush (s) == EOF)
c21ec326 1698 result = -1;
28f540f4
RM		 1699 s->__buffer = s->__bufp = s->__get_limit = s->__put_limit = NULL;
1700 s->__bufsize = 0;
1701
1702 return result;
1703}
299a95b9 1704\f
28f540f4
RM		 1705/* Pads string with given number of a specified character.
1706 This code is taken from iopadn.c of the GNU I/O library. */
1707#define PADSIZE 16
299a95b9
RM		 1708static const CHAR_T blanks[PADSIZE] =
1709{ L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '),
1710 L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' ') };
1711static const CHAR_T zeroes[PADSIZE] =
1712{ L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'),
1713 L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0') };
28f540f4
RM		 1714
1715ssize_t
299a95b9
RM		 1716#ifndef COMPILE_WPRINTF
1717__printf_pad (FILE *s, char pad, size_t count)
1718#else
1719__wprintf_pad (FILE *s, wchar_t pad, size_t count)
1720#endif
28f540f4 1721{
299a95b9 1722 const CHAR_T *padptr;
a04e7405 1723 register size_t i;
28f540f4 1724
299a95b9 1725 padptr = pad == L_(' ') ? blanks : zeroes;
28f540f4
RM		 1726
1727 for (i = count; i >= PADSIZE; i -= PADSIZE)
a04e7405
RM		 1728 if (PUT (s, padptr, PADSIZE) != PADSIZE)
1729 return -1;
28f540f4 1730 if (i > 0)
a04e7405
RM		 1731 if (PUT (s, padptr, i) != i)
1732 return -1;
1733
1734 return count;
28f540f4
RM		 1735}
1736#undef PADSIZE
1737#endif /* USE_IN_LIBIO */
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