1 /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
18 #include <array_length.h>
28 #include <libc-lock.h>
29 #include <sys/param.h>
31 #include <locale/localeinfo.h>
33 #include <scratch_buffer.h>
36 /* This code is shared between the standard stdio implementation found
37 in GNU C library and the libio implementation originally found in
40 Beside this it is also shared between the normal and wide character
41 implementation as defined in ISO/IEC 9899:1990/Amendment 1:1995. */
45 #ifdef COMPILE_WPRINTF
49 #define ARGCHECK(S, Format) \
52 /* Check file argument for consistence. */ \
54 if (S->_flags & _IO_NO_WRITES) \
56 S->_flags |= _IO_ERR_SEEN; \
57 __set_errno (EBADF); \
62 __set_errno (EINVAL); \
66 #define UNBUFFERED_P(S) ((S)->_flags & _IO_UNBUFFERED)
68 #if __HAVE_FLOAT128_UNLIKE_LDBL
69 # define PARSE_FLOAT_VA_ARG_EXTENDED(INFO) \
73 && (mode_flags & PRINTF_LDBL_USES_FLOAT128) != 0) \
75 INFO.is_binary128 = 1; \
76 the_arg.pa_float128 = va_arg (ap, _Float128); \
80 PARSE_FLOAT_VA_ARG (INFO); \
85 # define PARSE_FLOAT_VA_ARG_EXTENDED(INFO) \
86 PARSE_FLOAT_VA_ARG (INFO);
89 #define PARSE_FLOAT_VA_ARG(INFO) \
92 INFO.is_binary128 = 0; \
94 the_arg.pa_long_double = va_arg (ap, long double); \
96 the_arg.pa_double = va_arg (ap, double); \
100 #if __HAVE_FLOAT128_UNLIKE_LDBL
101 # define SETUP_FLOAT128_INFO(INFO) \
104 if ((mode_flags & PRINTF_LDBL_USES_FLOAT128) != 0) \
105 INFO.is_binary128 = is_long_double; \
107 INFO.is_binary128 = 0; \
111 # define SETUP_FLOAT128_INFO(INFO) \
114 INFO.is_binary128 = 0; \
119 /* Add LENGTH to DONE. Return the new value of DONE, or -1 on
120 overflow (and set errno accordingly). */
122 done_add_func (size_t length
, int done
)
127 if (INT_ADD_WRAPV (done
, length
, &ret
))
129 __set_errno (EOVERFLOW
);
135 #define done_add(val) \
138 /* Ensure that VAL has a type similar to int. */ \
139 _Static_assert (sizeof (val) == sizeof (int), "value int size"); \
140 _Static_assert ((__typeof__ (val)) -1 < 0, "value signed"); \
141 done = done_add_func ((val), done); \
147 #ifndef COMPILE_WPRINTF
148 # define vfprintf __vfprintf_internal
150 # define OTHER_CHAR_T wchar_t
151 # define UCHAR_T unsigned char
153 typedef const char *THOUSANDS_SEP_T
;
155 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - '0') < 10)
156 # define STR_LEN(Str) strlen (Str)
158 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
159 # define PUTC(C, F) _IO_putc_unlocked (C, F)
160 # define ORIENT if (_IO_vtable_offset (s) == 0 && _IO_fwide (s, -1) != -1)\
162 # define CONVERT_FROM_OTHER_STRING __wcsrtombs
164 # define vfprintf __vfwprintf_internal
165 # define CHAR_T wchar_t
166 # define OTHER_CHAR_T char
167 /* This is a hack!!! There should be a type uwchar_t. */
168 # define UCHAR_T unsigned int /* uwchar_t */
169 # define INT_T wint_t
170 typedef wchar_t THOUSANDS_SEP_T
;
171 # define L_(Str) L##Str
172 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - L'0') < 10)
173 # define STR_LEN(Str) __wcslen (Str)
177 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
178 # define PUTC(C, F) _IO_putwc_unlocked (C, F)
179 # define ORIENT if (_IO_fwide (s, 1) != 1) return -1
180 # define CONVERT_FROM_OTHER_STRING __mbsrtowcs
183 # define _itoa(Val, Buf, Base, Case) _itowa (Val, Buf, Base, Case)
184 # define _itoa_word(Val, Buf, Base, Case) _itowa_word (Val, Buf, Base, Case)
190 pad_func (FILE *s
, CHAR_T padchar
, int width
, int done
)
195 #ifndef COMPILE_WPRINTF
196 written
= _IO_padn (s
, padchar
, width
);
198 written
= _IO_wpadn (s
, padchar
, width
);
200 if (__glibc_unlikely (written
!= width
))
202 return done_add_func (width
, done
);
207 #define PAD(Padchar) \
210 done = pad_func (s, (Padchar), width, done); \
216 #include "_i18n_number.h"
218 /* Include the shared code for parsing the format string. */
219 #include "printf-parse.h"
222 #define outchar(Ch) \
225 const INT_T outc = (Ch); \
226 if (PUTC (outc, s) == EOF || done == INT_MAX) \
236 outstring_func (FILE *s
, const UCHAR_T
*string
, size_t length
, int done
)
238 assert ((size_t) done
<= (size_t) INT_MAX
);
239 if ((size_t) PUT (s
, string
, length
) != (size_t) (length
))
241 return done_add_func (length
, done
);
244 #define outstring(String, Len) \
247 const void *string_ = (String); \
248 done = outstring_func (s, string_, (Len), done); \
254 /* Write the string SRC to S. If PREC is non-negative, write at most
255 PREC bytes. If LEFT is true, perform left justification. */
257 outstring_converted_wide_string (FILE *s
, const OTHER_CHAR_T
*src
, int prec
,
258 int width
, bool left
, int done
)
260 /* Use a small buffer to combine processing of multiple characters.
261 CONVERT_FROM_OTHER_STRING expects the buffer size in (wide)
262 characters, and buf_length counts that. */
263 enum { buf_length
= 256 / sizeof (CHAR_T
) };
264 CHAR_T buf
[buf_length
];
265 _Static_assert (sizeof (buf
) > MB_LEN_MAX
,
266 "buffer is large enough for a single multi-byte character");
268 /* Add the initial padding if needed. */
269 if (width
> 0 && !left
)
271 /* Make a first pass to find the output width, so that we can
272 add the required padding. */
273 mbstate_t mbstate
= { 0 };
274 const OTHER_CHAR_T
*src_copy
= src
;
275 size_t total_written
;
277 total_written
= CONVERT_FROM_OTHER_STRING
278 (NULL
, &src_copy
, 0, &mbstate
);
281 /* The source might not be null-terminated. Enforce the
282 limit manually, based on the output length. */
285 while (limit
> 0 && src_copy
!= NULL
)
287 size_t write_limit
= buf_length
;
288 if (write_limit
> limit
)
290 size_t written
= CONVERT_FROM_OTHER_STRING
291 (buf
, &src_copy
, write_limit
, &mbstate
);
292 if (written
== (size_t) -1)
296 total_written
+= written
;
301 /* Output initial padding. */
302 if (total_written
< width
)
304 done
= pad_func (s
, L_(' '), width
- total_written
, done
);
310 /* Convert the input string, piece by piece. */
311 size_t total_written
= 0;
313 mbstate_t mbstate
= { 0 };
314 /* If prec is negative, remaining is not decremented, otherwise,
315 it serves as the write limit. */
316 size_t remaining
= -1;
319 while (remaining
> 0 && src
!= NULL
)
321 size_t write_limit
= buf_length
;
322 if (remaining
< write_limit
)
323 write_limit
= remaining
;
324 size_t written
= CONVERT_FROM_OTHER_STRING
325 (buf
, &src
, write_limit
, &mbstate
);
326 if (written
== (size_t) -1)
330 done
= outstring_func (s
, (const UCHAR_T
*) buf
, written
, done
);
333 total_written
+= written
;
335 remaining
-= written
;
339 /* Add final padding. */
340 if (width
> 0 && left
&& total_written
< width
)
341 return pad_func (s
, L_(' '), width
- total_written
, done
);
345 /* Calls __printf_fp or __printf_fphex based on the value of the
346 format specifier INFO->spec. */
348 __printf_fp_spec (FILE *fp
, const struct printf_info
*info
,
349 const void *const *args
)
351 if (info
->spec
== 'a' || info
->spec
== 'A')
352 return __printf_fphex (fp
, info
, args
);
354 return __printf_fp (fp
, info
, args
);
357 /* For handling long_double and longlong we use the same flag. If
358 `long' and `long long' are effectively the same type define it to
360 #if LONG_MAX == LONG_LONG_MAX
361 # define is_longlong 0
363 # define is_longlong is_long_double
366 /* If `long' and `int' is effectively the same type we don't have to
367 handle `long separately. */
368 #if INT_MAX == LONG_MAX
369 # define is_long_num 0
371 # define is_long_num is_long
375 /* Global constants. */
376 static const CHAR_T null
[] = L_("(null)");
378 /* Size of the work_buffer variable (in characters, not bytes. */
379 enum { WORK_BUFFER_SIZE
= 1000 / sizeof (CHAR_T
) };
381 /* This table maps a character into a number representing a class. In
382 each step there is a destination label for each class. */
383 static const uint8_t jump_table
[] =
385 /* ' ' */ 1, 0, 0, /* '#' */ 4,
386 0, /* '%' */ 14, 0, /* '\''*/ 6,
387 0, 0, /* '*' */ 7, /* '+' */ 2,
388 0, /* '-' */ 3, /* '.' */ 9, 0,
389 /* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
390 /* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
391 /* '8' */ 8, /* '9' */ 8, 0, 0,
393 0, /* 'A' */ 26, 0, /* 'C' */ 25,
394 0, /* 'E' */ 19, /* F */ 19, /* 'G' */ 19,
395 0, /* 'I' */ 29, 0, 0,
396 /* 'L' */ 12, 0, 0, 0,
397 0, 0, 0, /* 'S' */ 21,
399 /* 'X' */ 18, 0, /* 'Z' */ 13, 0,
401 0, /* 'a' */ 26, 0, /* 'c' */ 20,
402 /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
403 /* 'h' */ 10, /* 'i' */ 15, /* 'j' */ 28, 0,
404 /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
405 /* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
406 /* 't' */ 27, /* 'u' */ 16, 0, 0,
407 /* 'x' */ 18, 0, /* 'z' */ 13
410 #define NOT_IN_JUMP_RANGE(Ch) ((Ch) < L_(' ') || (Ch) > L_('z'))
411 #define CHAR_CLASS(Ch) (jump_table[(INT_T) (Ch) - L_(' ')])
412 #define LABEL(Name) do_##Name
414 /* 'int' is enough and it saves some space on 64 bit systems. */
415 # define JUMP_TABLE_TYPE const int
416 # define JUMP_TABLE_BASE_LABEL do_form_unknown
417 # define REF(Name) &&do_##Name - &&JUMP_TABLE_BASE_LABEL
418 # define JUMP(ChExpr, table) \
424 offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
425 : table[CHAR_CLASS (spec)]; \
426 ptr = &&JUMP_TABLE_BASE_LABEL + offset; \
431 # define JUMP_TABLE_TYPE const void *const
432 # define REF(Name) &&do_##Name
433 # define JUMP(ChExpr, table) \
438 ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
439 : table[CHAR_CLASS (spec)]; \
445 #define STEP0_3_TABLE \
446 /* Step 0: at the beginning. */ \
447 static JUMP_TABLE_TYPE step0_jumps[30] = \
449 REF (form_unknown), \
450 REF (flag_space), /* for ' ' */ \
451 REF (flag_plus), /* for '+' */ \
452 REF (flag_minus), /* for '-' */ \
453 REF (flag_hash), /* for '<hash>' */ \
454 REF (flag_zero), /* for '0' */ \
455 REF (flag_quote), /* for '\'' */ \
456 REF (width_asterics), /* for '*' */ \
457 REF (width), /* for '1'...'9' */ \
458 REF (precision), /* for '.' */ \
459 REF (mod_half), /* for 'h' */ \
460 REF (mod_long), /* for 'l' */ \
461 REF (mod_longlong), /* for 'L', 'q' */ \
462 REF (mod_size_t), /* for 'z', 'Z' */ \
463 REF (form_percent), /* for '%' */ \
464 REF (form_integer), /* for 'd', 'i' */ \
465 REF (form_unsigned), /* for 'u' */ \
466 REF (form_octal), /* for 'o' */ \
467 REF (form_hexa), /* for 'X', 'x' */ \
468 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
469 REF (form_character), /* for 'c' */ \
470 REF (form_string), /* for 's', 'S' */ \
471 REF (form_pointer), /* for 'p' */ \
472 REF (form_number), /* for 'n' */ \
473 REF (form_strerror), /* for 'm' */ \
474 REF (form_wcharacter), /* for 'C' */ \
475 REF (form_floathex), /* for 'A', 'a' */ \
476 REF (mod_ptrdiff_t), /* for 't' */ \
477 REF (mod_intmax_t), /* for 'j' */ \
478 REF (flag_i18n), /* for 'I' */ \
480 /* Step 1: after processing width. */ \
481 static JUMP_TABLE_TYPE step1_jumps[30] = \
483 REF (form_unknown), \
484 REF (form_unknown), /* for ' ' */ \
485 REF (form_unknown), /* for '+' */ \
486 REF (form_unknown), /* for '-' */ \
487 REF (form_unknown), /* for '<hash>' */ \
488 REF (form_unknown), /* for '0' */ \
489 REF (form_unknown), /* for '\'' */ \
490 REF (form_unknown), /* for '*' */ \
491 REF (form_unknown), /* for '1'...'9' */ \
492 REF (precision), /* for '.' */ \
493 REF (mod_half), /* for 'h' */ \
494 REF (mod_long), /* for 'l' */ \
495 REF (mod_longlong), /* for 'L', 'q' */ \
496 REF (mod_size_t), /* for 'z', 'Z' */ \
497 REF (form_percent), /* for '%' */ \
498 REF (form_integer), /* for 'd', 'i' */ \
499 REF (form_unsigned), /* for 'u' */ \
500 REF (form_octal), /* for 'o' */ \
501 REF (form_hexa), /* for 'X', 'x' */ \
502 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
503 REF (form_character), /* for 'c' */ \
504 REF (form_string), /* for 's', 'S' */ \
505 REF (form_pointer), /* for 'p' */ \
506 REF (form_number), /* for 'n' */ \
507 REF (form_strerror), /* for 'm' */ \
508 REF (form_wcharacter), /* for 'C' */ \
509 REF (form_floathex), /* for 'A', 'a' */ \
510 REF (mod_ptrdiff_t), /* for 't' */ \
511 REF (mod_intmax_t), /* for 'j' */ \
512 REF (form_unknown) /* for 'I' */ \
514 /* Step 2: after processing precision. */ \
515 static JUMP_TABLE_TYPE step2_jumps[30] = \
517 REF (form_unknown), \
518 REF (form_unknown), /* for ' ' */ \
519 REF (form_unknown), /* for '+' */ \
520 REF (form_unknown), /* for '-' */ \
521 REF (form_unknown), /* for '<hash>' */ \
522 REF (form_unknown), /* for '0' */ \
523 REF (form_unknown), /* for '\'' */ \
524 REF (form_unknown), /* for '*' */ \
525 REF (form_unknown), /* for '1'...'9' */ \
526 REF (form_unknown), /* for '.' */ \
527 REF (mod_half), /* for 'h' */ \
528 REF (mod_long), /* for 'l' */ \
529 REF (mod_longlong), /* for 'L', 'q' */ \
530 REF (mod_size_t), /* for 'z', 'Z' */ \
531 REF (form_percent), /* for '%' */ \
532 REF (form_integer), /* for 'd', 'i' */ \
533 REF (form_unsigned), /* for 'u' */ \
534 REF (form_octal), /* for 'o' */ \
535 REF (form_hexa), /* for 'X', 'x' */ \
536 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
537 REF (form_character), /* for 'c' */ \
538 REF (form_string), /* for 's', 'S' */ \
539 REF (form_pointer), /* for 'p' */ \
540 REF (form_number), /* for 'n' */ \
541 REF (form_strerror), /* for 'm' */ \
542 REF (form_wcharacter), /* for 'C' */ \
543 REF (form_floathex), /* for 'A', 'a' */ \
544 REF (mod_ptrdiff_t), /* for 't' */ \
545 REF (mod_intmax_t), /* for 'j' */ \
546 REF (form_unknown) /* for 'I' */ \
548 /* Step 3a: after processing first 'h' modifier. */ \
549 static JUMP_TABLE_TYPE step3a_jumps[30] = \
551 REF (form_unknown), \
552 REF (form_unknown), /* for ' ' */ \
553 REF (form_unknown), /* for '+' */ \
554 REF (form_unknown), /* for '-' */ \
555 REF (form_unknown), /* for '<hash>' */ \
556 REF (form_unknown), /* for '0' */ \
557 REF (form_unknown), /* for '\'' */ \
558 REF (form_unknown), /* for '*' */ \
559 REF (form_unknown), /* for '1'...'9' */ \
560 REF (form_unknown), /* for '.' */ \
561 REF (mod_halfhalf), /* for 'h' */ \
562 REF (form_unknown), /* for 'l' */ \
563 REF (form_unknown), /* for 'L', 'q' */ \
564 REF (form_unknown), /* for 'z', 'Z' */ \
565 REF (form_percent), /* for '%' */ \
566 REF (form_integer), /* for 'd', 'i' */ \
567 REF (form_unsigned), /* for 'u' */ \
568 REF (form_octal), /* for 'o' */ \
569 REF (form_hexa), /* for 'X', 'x' */ \
570 REF (form_unknown), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
571 REF (form_unknown), /* for 'c' */ \
572 REF (form_unknown), /* for 's', 'S' */ \
573 REF (form_unknown), /* for 'p' */ \
574 REF (form_number), /* for 'n' */ \
575 REF (form_unknown), /* for 'm' */ \
576 REF (form_unknown), /* for 'C' */ \
577 REF (form_unknown), /* for 'A', 'a' */ \
578 REF (form_unknown), /* for 't' */ \
579 REF (form_unknown), /* for 'j' */ \
580 REF (form_unknown) /* for 'I' */ \
582 /* Step 3b: after processing first 'l' modifier. */ \
583 static JUMP_TABLE_TYPE step3b_jumps[30] = \
585 REF (form_unknown), \
586 REF (form_unknown), /* for ' ' */ \
587 REF (form_unknown), /* for '+' */ \
588 REF (form_unknown), /* for '-' */ \
589 REF (form_unknown), /* for '<hash>' */ \
590 REF (form_unknown), /* for '0' */ \
591 REF (form_unknown), /* for '\'' */ \
592 REF (form_unknown), /* for '*' */ \
593 REF (form_unknown), /* for '1'...'9' */ \
594 REF (form_unknown), /* for '.' */ \
595 REF (form_unknown), /* for 'h' */ \
596 REF (mod_longlong), /* for 'l' */ \
597 REF (form_unknown), /* for 'L', 'q' */ \
598 REF (form_unknown), /* for 'z', 'Z' */ \
599 REF (form_percent), /* for '%' */ \
600 REF (form_integer), /* for 'd', 'i' */ \
601 REF (form_unsigned), /* for 'u' */ \
602 REF (form_octal), /* for 'o' */ \
603 REF (form_hexa), /* for 'X', 'x' */ \
604 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
605 REF (form_character), /* for 'c' */ \
606 REF (form_string), /* for 's', 'S' */ \
607 REF (form_pointer), /* for 'p' */ \
608 REF (form_number), /* for 'n' */ \
609 REF (form_strerror), /* for 'm' */ \
610 REF (form_wcharacter), /* for 'C' */ \
611 REF (form_floathex), /* for 'A', 'a' */ \
612 REF (form_unknown), /* for 't' */ \
613 REF (form_unknown), /* for 'j' */ \
614 REF (form_unknown) /* for 'I' */ \
617 #define STEP4_TABLE \
618 /* Step 4: processing format specifier. */ \
619 static JUMP_TABLE_TYPE step4_jumps[30] = \
621 REF (form_unknown), \
622 REF (form_unknown), /* for ' ' */ \
623 REF (form_unknown), /* for '+' */ \
624 REF (form_unknown), /* for '-' */ \
625 REF (form_unknown), /* for '<hash>' */ \
626 REF (form_unknown), /* for '0' */ \
627 REF (form_unknown), /* for '\'' */ \
628 REF (form_unknown), /* for '*' */ \
629 REF (form_unknown), /* for '1'...'9' */ \
630 REF (form_unknown), /* for '.' */ \
631 REF (form_unknown), /* for 'h' */ \
632 REF (form_unknown), /* for 'l' */ \
633 REF (form_unknown), /* for 'L', 'q' */ \
634 REF (form_unknown), /* for 'z', 'Z' */ \
635 REF (form_percent), /* for '%' */ \
636 REF (form_integer), /* for 'd', 'i' */ \
637 REF (form_unsigned), /* for 'u' */ \
638 REF (form_octal), /* for 'o' */ \
639 REF (form_hexa), /* for 'X', 'x' */ \
640 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
641 REF (form_character), /* for 'c' */ \
642 REF (form_string), /* for 's', 'S' */ \
643 REF (form_pointer), /* for 'p' */ \
644 REF (form_number), /* for 'n' */ \
645 REF (form_strerror), /* for 'm' */ \
646 REF (form_wcharacter), /* for 'C' */ \
647 REF (form_floathex), /* for 'A', 'a' */ \
648 REF (form_unknown), /* for 't' */ \
649 REF (form_unknown), /* for 'j' */ \
650 REF (form_unknown) /* for 'I' */ \
653 /* Before invoking this macro, process_arg_int etc. macros have to be
654 defined to extract one argument of the appropriate type. */
655 #define process_arg() \
656 /* Start real work. We know about all flags and modifiers and \
657 now process the wanted format specifier. */ \
658 LABEL (form_percent): \
659 /* Write a literal "%". */ \
663 LABEL (form_integer): \
664 /* Signed decimal integer. */ \
669 long long int signed_number = process_arg_long_long_int (); \
670 is_negative = signed_number < 0; \
671 number.longlong = is_negative ? (- signed_number) : signed_number; \
673 goto LABEL (longlong_number); \
677 long int signed_number; \
679 signed_number = process_arg_long_int (); \
681 signed_number = (signed char) process_arg_unsigned_int (); \
682 else if (!is_short) \
683 signed_number = process_arg_int (); \
685 signed_number = (short int) process_arg_unsigned_int (); \
687 is_negative = signed_number < 0; \
688 number.word = is_negative ? (- signed_number) : signed_number; \
690 goto LABEL (number); \
694 LABEL (form_unsigned): \
695 /* Unsigned decimal integer. */ \
697 goto LABEL (unsigned_number); \
700 LABEL (form_octal): \
701 /* Unsigned octal integer. */ \
703 goto LABEL (unsigned_number); \
707 /* Unsigned hexadecimal integer. */ \
710 LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
712 /* ISO specifies the `+' and ` ' flags only for signed \
720 number.longlong = process_arg_unsigned_long_long_int (); \
722 LABEL (longlong_number): \
724 /* Supply a default precision if none was given. */ \
727 /* We have to take care for the '0' flag. If a precision \
728 is given it must be ignored. */ \
731 /* If the precision is 0 and the number is 0 nothing has to \
732 be written for the number, except for the 'o' format in \
734 if (prec == 0 && number.longlong == 0) \
737 if (base == 8 && alt) \
738 *--string = L_('0'); \
742 /* Put the number in WORK. */ \
743 string = _itoa (number.longlong, workend, base, \
745 if (group && grouping) \
746 string = group_number (work_buffer, string, workend, \
747 grouping, thousands_sep); \
748 if (use_outdigits && base == 10) \
749 string = _i18n_number_rewrite (string, workend, workend); \
751 /* Simplify further test for num != 0. */ \
752 number.word = number.longlong != 0; \
757 number.word = process_arg_unsigned_long_int (); \
759 number.word = (unsigned char) process_arg_unsigned_int (); \
760 else if (!is_short) \
761 number.word = process_arg_unsigned_int (); \
763 number.word = (unsigned short int) process_arg_unsigned_int (); \
767 /* Supply a default precision if none was given. */ \
770 /* We have to take care for the '0' flag. If a precision \
771 is given it must be ignored. */ \
774 /* If the precision is 0 and the number is 0 nothing has to \
775 be written for the number, except for the 'o' format in \
777 if (prec == 0 && number.word == 0) \
780 if (base == 8 && alt) \
781 *--string = L_('0'); \
785 /* Put the number in WORK. */ \
786 string = _itoa_word (number.word, workend, base, \
788 if (group && grouping) \
789 string = group_number (work_buffer, string, workend, \
790 grouping, thousands_sep); \
791 if (use_outdigits && base == 10) \
792 string = _i18n_number_rewrite (string, workend, workend); \
796 if (prec <= workend - string && number.word != 0 && alt && base == 8) \
797 /* Add octal marker. */ \
798 *--string = L_('0'); \
800 prec = MAX (0, prec - (workend - string)); \
804 width -= workend - string + prec; \
806 if (number.word != 0 && alt && base == 16) \
807 /* Account for 0X hex marker. */ \
810 if (is_negative || showsign || space) \
813 if (pad == L_(' ')) \
826 if (number.word != 0 && alt && base == 16) \
835 outstring (string, workend - string); \
857 if (number.word != 0 && alt && base == 16) \
864 width -= workend - string + prec; \
874 outstring (string, workend - string); \
880 LABEL (form_pointer): \
881 /* Generic pointer. */ \
883 const void *ptr = process_arg_pointer (); \
886 /* If the pointer is not NULL, write it as a %#x spec. */ \
888 number.word = (unsigned long int) ptr; \
893 goto LABEL (number); \
897 /* Write "(nil)" for a nil pointer. */ \
898 string = (CHAR_T *) L_("(nil)"); \
899 /* Make sure the full string "(nil)" is printed. */ \
902 /* This is a wide string iff compiling wprintf. */ \
903 is_long = sizeof (CHAR_T) > 1; \
904 goto LABEL (print_string); \
909 LABEL (form_number): \
910 if ((mode_flags & PRINTF_FORTIFY) != 0) \
912 if (! readonly_format) \
914 extern int __readonly_area (const void *, size_t) \
917 = __readonly_area (format, ((STR_LEN (format) + 1) \
918 * sizeof (CHAR_T))); \
920 if (readonly_format < 0) \
921 __libc_fatal ("*** %n in writable segment detected ***\n"); \
923 /* Answer the count of characters written. */ \
924 void *ptrptr = process_arg_pointer (); \
926 *(long long int *) ptrptr = done; \
927 else if (is_long_num) \
928 *(long int *) ptrptr = done; \
930 *(char *) ptrptr = done; \
931 else if (!is_short) \
932 *(int *) ptrptr = done; \
934 *(short int *) ptrptr = done; \
937 LABEL (form_strerror): \
938 /* Print description of error ERRNO. */ \
940 (CHAR_T *) __strerror_r (save_errno, (char *) work_buffer, \
941 WORK_BUFFER_SIZE * sizeof (CHAR_T)); \
942 is_long = 0; /* This is no wide-char string. */ \
943 goto LABEL (print_string)
945 #ifdef COMPILE_WPRINTF
946 # define process_string_arg() \
947 LABEL (form_character): \
950 goto LABEL (form_wcharacter); \
951 --width; /* Account for the character itself. */ \
954 outchar (__btowc ((unsigned char) process_arg_int ())); /* Promoted. */ \
959 LABEL (form_wcharacter): \
961 /* Wide character. */ \
965 outchar (process_arg_wchar_t ()); \
971 LABEL (form_string): \
975 /* The string argument could in fact be `char *' or `wchar_t *'. \
976 But this should not make a difference here. */ \
977 string = (CHAR_T *) process_arg_wstring (); \
979 /* Entry point for printing other strings. */ \
980 LABEL (print_string): \
982 if (string == NULL) \
984 /* Write "(null)" if there's space. */ \
985 if (prec == -1 || prec >= (int) array_length (null) - 1) \
987 string = (CHAR_T *) null; \
988 len = array_length (null) - 1; \
992 string = (CHAR_T *) L""; \
996 else if (!is_long && spec != L_('S')) \
998 done = outstring_converted_wide_string \
999 (s, (const char *) string, prec, width, left, done); \
1002 /* The padding has already been written. */ \
1008 /* Search for the end of the string, but don't search past \
1009 the length specified by the precision. */ \
1010 len = __wcsnlen (string, prec); \
1012 len = __wcslen (string); \
1015 if ((width -= len) < 0) \
1017 outstring (string, len); \
1023 outstring (string, len); \
1029 # define process_string_arg() \
1030 LABEL (form_character): \
1033 goto LABEL (form_wcharacter); \
1034 --width; /* Account for the character itself. */ \
1037 outchar ((unsigned char) process_arg_int ()); /* Promoted. */ \
1042 LABEL (form_wcharacter): \
1044 /* Wide character. */ \
1045 char buf[MB_LEN_MAX]; \
1046 mbstate_t mbstate; \
1049 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1050 len = __wcrtomb (buf, process_arg_wchar_t (), &mbstate); \
1051 if (len == (size_t) -1) \
1053 /* Something went wrong during the conversion. Bail out. */ \
1060 outstring (buf, len); \
1066 LABEL (form_string): \
1070 /* The string argument could in fact be `char *' or `wchar_t *'. \
1071 But this should not make a difference here. */ \
1072 string = (char *) process_arg_string (); \
1074 /* Entry point for printing other strings. */ \
1075 LABEL (print_string): \
1077 if (string == NULL) \
1079 /* Write "(null)" if there's space. */ \
1080 if (prec == -1 || prec >= (int) sizeof (null) - 1) \
1082 string = (char *) null; \
1083 len = sizeof (null) - 1; \
1087 string = (char *) ""; \
1091 else if (!is_long && spec != L_('S')) \
1094 /* Search for the end of the string, but don't search past \
1095 the length (in bytes) specified by the precision. */ \
1096 len = __strnlen (string, prec); \
1098 len = strlen (string); \
1102 done = outstring_converted_wide_string \
1103 (s, (const wchar_t *) string, prec, width, left, done); \
1106 /* The padding has already been written. */ \
1110 if ((width -= len) < 0) \
1112 outstring (string, len); \
1118 outstring (string, len); \
1125 /* Helper function to provide temporary buffering for unbuffered streams. */
1126 static int buffered_vfprintf (FILE *stream
, const CHAR_T
*fmt
, va_list,
1128 __THROW
__attribute__ ((noinline
));
1130 /* Handle positional format specifiers. */
1131 static int printf_positional (FILE *s
,
1132 const CHAR_T
*format
, int readonly_format
,
1133 va_list ap
, va_list *ap_savep
, int done
,
1134 int nspecs_done
, const UCHAR_T
*lead_str_end
,
1135 CHAR_T
*work_buffer
, int save_errno
,
1136 const char *grouping
,
1137 THOUSANDS_SEP_T thousands_sep
,
1138 unsigned int mode_flags
);
1140 /* Handle unknown format specifier. */
1141 static int printf_unknown (FILE *, const struct printf_info
*,
1142 const void *const *) __THROW
;
1144 /* Group digits of number string. */
1145 static CHAR_T
*group_number (CHAR_T
*, CHAR_T
*, CHAR_T
*, const char *,
1148 /* The function itself. */
1150 vfprintf (FILE *s
, const CHAR_T
*format
, va_list ap
, unsigned int mode_flags
)
1152 /* The character used as thousands separator. */
1153 THOUSANDS_SEP_T thousands_sep
= 0;
1155 /* The string describing the size of groups of digits. */
1156 const char *grouping
;
1158 /* Place to accumulate the result. */
1161 /* Current character in format string. */
1164 /* End of leading constant string. */
1165 const UCHAR_T
*lead_str_end
;
1167 /* Points to next format specifier. */
1168 const UCHAR_T
*end_of_spec
;
1170 /* Buffer intermediate results. */
1171 CHAR_T work_buffer
[WORK_BUFFER_SIZE
];
1174 /* We have to save the original argument pointer. */
1177 /* Count number of specifiers we already processed. */
1180 /* For the %m format we may need the current `errno' value. */
1181 int save_errno
= errno
;
1183 /* 1 if format is in read-only memory, -1 if it is in writable memory,
1185 int readonly_format
= 0;
1187 /* Orient the stream. */
1192 /* Sanity check of arguments. */
1193 ARGCHECK (s
, format
);
1196 /* Check for correct orientation. */
1197 if (_IO_vtable_offset (s
) == 0
1198 && _IO_fwide (s
, sizeof (CHAR_T
) == 1 ? -1 : 1)
1199 != (sizeof (CHAR_T
) == 1 ? -1 : 1))
1200 /* The stream is already oriented otherwise. */
1204 if (UNBUFFERED_P (s
))
1205 /* Use a helper function which will allocate a local temporary buffer
1206 for the stream and then call us again. */
1207 return buffered_vfprintf (s
, format
, ap
, mode_flags
);
1209 /* Initialize local variables. */
1211 grouping
= (const char *) -1;
1213 /* This macro will be available soon in gcc's <stdarg.h>. We need it
1214 since on some systems `va_list' is not an integral type. */
1215 __va_copy (ap_save
, ap
);
1221 #ifdef COMPILE_WPRINTF
1222 /* Find the first format specifier. */
1223 f
= lead_str_end
= __find_specwc ((const UCHAR_T
*) format
);
1225 /* Find the first format specifier. */
1226 f
= lead_str_end
= __find_specmb ((const UCHAR_T
*) format
);
1230 _IO_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile
, s
);
1233 /* Write the literal text before the first format. */
1234 outstring ((const UCHAR_T
*) format
,
1235 lead_str_end
- (const UCHAR_T
*) format
);
1237 /* If we only have to print a simple string, return now. */
1241 /* Use the slow path in case any printf handler is registered. */
1242 if (__glibc_unlikely (__printf_function_table
!= NULL
1243 || __printf_modifier_table
!= NULL
1244 || __printf_va_arg_table
!= NULL
))
1247 /* Process whole format string. */
1253 int is_negative
; /* Flag for negative number. */
1256 unsigned long long int longlong
;
1257 unsigned long int word
;
1260 union printf_arg the_arg
;
1261 CHAR_T
*string
; /* Pointer to argument string. */
1262 int alt
= 0; /* Alternate format. */
1263 int space
= 0; /* Use space prefix if no sign is needed. */
1264 int left
= 0; /* Left-justify output. */
1265 int showsign
= 0; /* Always begin with plus or minus sign. */
1266 int group
= 0; /* Print numbers according grouping rules. */
1267 /* Argument is long double/long long int. Only used if
1268 double/long double or long int/long long int are distinct. */
1269 int is_long_double
__attribute__ ((unused
)) = 0;
1270 int is_short
= 0; /* Argument is short int. */
1271 int is_long
= 0; /* Argument is long int. */
1272 int is_char
= 0; /* Argument is promoted (unsigned) char. */
1273 int width
= 0; /* Width of output; 0 means none specified. */
1274 int prec
= -1; /* Precision of output; -1 means none specified. */
1275 /* This flag is set by the 'I' modifier and selects the use of the
1276 `outdigits' as determined by the current locale. */
1277 int use_outdigits
= 0;
1278 UCHAR_T pad
= L_(' ');/* Padding character. */
1281 workend
= work_buffer
+ WORK_BUFFER_SIZE
;
1283 /* Get current character in format string. */
1284 JUMP (*++f
, step0_jumps
);
1289 JUMP (*++f
, step0_jumps
);
1294 JUMP (*++f
, step0_jumps
);
1300 JUMP (*++f
, step0_jumps
);
1305 JUMP (*++f
, step0_jumps
);
1311 JUMP (*++f
, step0_jumps
);
1313 /* The '\'' flag. */
1317 if (grouping
== (const char *) -1)
1319 #ifdef COMPILE_WPRINTF
1320 thousands_sep
= _NL_CURRENT_WORD (LC_NUMERIC
,
1321 _NL_NUMERIC_THOUSANDS_SEP_WC
);
1323 thousands_sep
= _NL_CURRENT (LC_NUMERIC
, THOUSANDS_SEP
);
1326 grouping
= _NL_CURRENT (LC_NUMERIC
, GROUPING
);
1327 if (*grouping
== '\0' || *grouping
== CHAR_MAX
1328 #ifdef COMPILE_WPRINTF
1329 || thousands_sep
== L
'\0'
1331 || *thousands_sep
== '\0'
1336 JUMP (*++f
, step0_jumps
);
1340 JUMP (*++f
, step0_jumps
);
1342 /* Get width from argument. */
1343 LABEL (width_asterics
):
1345 const UCHAR_T
*tmp
; /* Temporary value. */
1350 int pos
= read_int (&tmp
);
1354 __set_errno (EOVERFLOW
);
1359 if (pos
&& *tmp
== L_('$'))
1360 /* The width comes from a positional parameter. */
1363 width
= va_arg (ap
, int);
1365 /* Negative width means left justified. */
1373 JUMP (*f
, step1_jumps
);
1375 /* Given width in format string. */
1377 width
= read_int (&f
);
1379 if (__glibc_unlikely (width
== -1))
1381 __set_errno (EOVERFLOW
);
1387 /* Oh, oh. The argument comes from a positional parameter. */
1389 JUMP (*f
, step1_jumps
);
1395 const UCHAR_T
*tmp
; /* Temporary value. */
1400 int pos
= read_int (&tmp
);
1404 __set_errno (EOVERFLOW
);
1409 if (pos
&& *tmp
== L_('$'))
1410 /* The precision comes from a positional parameter. */
1413 prec
= va_arg (ap
, int);
1415 /* If the precision is negative the precision is omitted. */
1419 else if (ISDIGIT (*f
))
1421 prec
= read_int (&f
);
1423 /* The precision was specified in this case as an extremely
1424 large positive value. */
1427 __set_errno (EOVERFLOW
);
1434 JUMP (*f
, step2_jumps
);
1436 /* Process 'h' modifier. There might another 'h' following. */
1439 JUMP (*++f
, step3a_jumps
);
1441 /* Process 'hh' modifier. */
1442 LABEL (mod_halfhalf
):
1445 JUMP (*++f
, step4_jumps
);
1447 /* Process 'l' modifier. There might another 'l' following. */
1450 JUMP (*++f
, step3b_jumps
);
1452 /* Process 'L', 'q', or 'll' modifier. No other modifier is
1453 allowed to follow. */
1454 LABEL (mod_longlong
):
1457 JUMP (*++f
, step4_jumps
);
1460 is_long_double
= sizeof (size_t) > sizeof (unsigned long int);
1461 is_long
= sizeof (size_t) > sizeof (unsigned int);
1462 JUMP (*++f
, step4_jumps
);
1464 LABEL (mod_ptrdiff_t
):
1465 is_long_double
= sizeof (ptrdiff_t) > sizeof (unsigned long int);
1466 is_long
= sizeof (ptrdiff_t) > sizeof (unsigned int);
1467 JUMP (*++f
, step4_jumps
);
1469 LABEL (mod_intmax_t
):
1470 is_long_double
= sizeof (intmax_t) > sizeof (unsigned long int);
1471 is_long
= sizeof (intmax_t) > sizeof (unsigned int);
1472 JUMP (*++f
, step4_jumps
);
1474 /* Process current format. */
1477 #define process_arg_int() va_arg (ap, int)
1478 #define process_arg_long_int() va_arg (ap, long int)
1479 #define process_arg_long_long_int() va_arg (ap, long long int)
1480 #define process_arg_pointer() va_arg (ap, void *)
1481 #define process_arg_string() va_arg (ap, const char *)
1482 #define process_arg_unsigned_int() va_arg (ap, unsigned int)
1483 #define process_arg_unsigned_long_int() va_arg (ap, unsigned long int)
1484 #define process_arg_unsigned_long_long_int() va_arg (ap, unsigned long long int)
1485 #define process_arg_wchar_t() va_arg (ap, wchar_t)
1486 #define process_arg_wstring() va_arg (ap, const wchar_t *)
1488 process_string_arg ();
1489 #undef process_arg_int
1490 #undef process_arg_long_int
1491 #undef process_arg_long_long_int
1492 #undef process_arg_pointer
1493 #undef process_arg_string
1494 #undef process_arg_unsigned_int
1495 #undef process_arg_unsigned_long_int
1496 #undef process_arg_unsigned_long_long_int
1497 #undef process_arg_wchar_t
1498 #undef process_arg_wstring
1501 LABEL (form_floathex
):
1503 if (__glibc_unlikely ((mode_flags
& PRINTF_LDBL_IS_DBL
) != 0))
1506 struct printf_info info
=
1511 .is_long_double
= is_long_double
,
1512 .is_short
= is_short
,
1517 .showsign
= showsign
,
1521 .i18n
= use_outdigits
,
1522 .wide
= sizeof (CHAR_T
) != 1,
1526 PARSE_FLOAT_VA_ARG_EXTENDED (info
);
1527 const void *ptr
= &the_arg
;
1529 int function_done
= __printf_fp_spec (s
, &info
, &ptr
);
1530 if (function_done
< 0)
1535 done_add (function_done
);
1539 LABEL (form_unknown
):
1540 if (spec
== L_('\0'))
1542 /* The format string ended before the specifier is complete. */
1543 __set_errno (EINVAL
);
1548 /* If we are in the fast loop force entering the complicated
1553 /* The format is correctly handled. */
1556 /* Look for next format specifier. */
1557 #ifdef COMPILE_WPRINTF
1558 f
= __find_specwc ((end_of_spec
= ++f
));
1560 f
= __find_specmb ((end_of_spec
= ++f
));
1563 /* Write the following constant string. */
1564 outstring (end_of_spec
, f
- end_of_spec
);
1566 while (*f
!= L_('\0'));
1568 /* Unlock stream and return. */
1571 /* Hand off processing for positional parameters. */
1573 done
= printf_positional (s
, format
, readonly_format
, ap
, &ap_save
,
1574 done
, nspecs_done
, lead_str_end
, work_buffer
,
1575 save_errno
, grouping
, thousands_sep
, mode_flags
);
1578 /* Unlock the stream. */
1579 _IO_funlockfile (s
);
1580 _IO_cleanup_region_end (0);
1586 printf_positional (FILE *s
, const CHAR_T
*format
, int readonly_format
,
1587 va_list ap
, va_list *ap_savep
, int done
, int nspecs_done
,
1588 const UCHAR_T
*lead_str_end
,
1589 CHAR_T
*work_buffer
, int save_errno
,
1590 const char *grouping
, THOUSANDS_SEP_T thousands_sep
,
1591 unsigned int mode_flags
)
1593 /* For positional argument handling. */
1594 struct scratch_buffer specsbuf
;
1595 scratch_buffer_init (&specsbuf
);
1596 struct printf_spec
*specs
= specsbuf
.data
;
1597 size_t specs_limit
= specsbuf
.length
/ sizeof (specs
[0]);
1599 /* Used as a backing store for args_value, args_size, args_type
1601 struct scratch_buffer argsbuf
;
1602 scratch_buffer_init (&argsbuf
);
1604 /* Array with information about the needed arguments. This has to
1605 be dynamically extensible. */
1608 /* The number of arguments the format string requests. This will
1609 determine the size of the array needed to store the argument
1613 /* Positional parameters refer to arguments directly. This could
1614 also determine the maximum number of arguments. Track the
1616 size_t max_ref_arg
= 0;
1618 /* Just a counter. */
1621 if (grouping
== (const char *) -1)
1623 #ifdef COMPILE_WPRINTF
1624 thousands_sep
= _NL_CURRENT_WORD (LC_NUMERIC
,
1625 _NL_NUMERIC_THOUSANDS_SEP_WC
);
1627 thousands_sep
= _NL_CURRENT (LC_NUMERIC
, THOUSANDS_SEP
);
1630 grouping
= _NL_CURRENT (LC_NUMERIC
, GROUPING
);
1631 if (*grouping
== '\0' || *grouping
== CHAR_MAX
)
1635 for (const UCHAR_T
*f
= lead_str_end
; *f
!= L_('\0');
1636 f
= specs
[nspecs
++].next_fmt
)
1638 if (nspecs
== specs_limit
)
1640 if (!scratch_buffer_grow_preserve (&specsbuf
))
1645 specs
= specsbuf
.data
;
1646 specs_limit
= specsbuf
.length
/ sizeof (specs
[0]);
1649 /* Parse the format specifier. */
1650 #ifdef COMPILE_WPRINTF
1651 nargs
+= __parse_one_specwc (f
, nargs
, &specs
[nspecs
], &max_ref_arg
);
1653 nargs
+= __parse_one_specmb (f
, nargs
, &specs
[nspecs
], &max_ref_arg
);
1657 /* Determine the number of arguments the format string consumes. */
1658 nargs
= MAX (nargs
, max_ref_arg
);
1660 union printf_arg
*args_value
;
1664 /* Calculate total size needed to represent a single argument
1665 across all three argument-related arrays. */
1666 size_t bytes_per_arg
1667 = sizeof (*args_value
) + sizeof (*args_size
) + sizeof (*args_type
);
1668 if (!scratch_buffer_set_array_size (&argsbuf
, nargs
, bytes_per_arg
))
1673 args_value
= argsbuf
.data
;
1674 /* Set up the remaining two arrays to each point past the end of
1675 the prior array, since space for all three has been allocated
1677 args_size
= &args_value
[nargs
].pa_int
;
1678 args_type
= &args_size
[nargs
];
1679 memset (args_type
, (mode_flags
& PRINTF_FORTIFY
) != 0 ? '\xff' : '\0',
1680 nargs
* sizeof (*args_type
));
1683 /* XXX Could do sanity check here: If any element in ARGS_TYPE is
1684 still zero after this loop, format is invalid. For now we
1685 simply use 0 as the value. */
1687 /* Fill in the types of all the arguments. */
1688 for (cnt
= 0; cnt
< nspecs
; ++cnt
)
1690 /* If the width is determined by an argument this is an int. */
1691 if (specs
[cnt
].width_arg
!= -1)
1692 args_type
[specs
[cnt
].width_arg
] = PA_INT
;
1694 /* If the precision is determined by an argument this is an int. */
1695 if (specs
[cnt
].prec_arg
!= -1)
1696 args_type
[specs
[cnt
].prec_arg
] = PA_INT
;
1698 switch (specs
[cnt
].ndata_args
)
1700 case 0: /* No arguments. */
1702 case 1: /* One argument; we already have the
1704 args_type
[specs
[cnt
].data_arg
] = specs
[cnt
].data_arg_type
;
1705 args_size
[specs
[cnt
].data_arg
] = specs
[cnt
].size
;
1708 /* We have more than one argument for this format spec.
1709 We must call the arginfo function again to determine
1711 (void) (*__printf_arginfo_table
[specs
[cnt
].info
.spec
])
1713 specs
[cnt
].ndata_args
, &args_type
[specs
[cnt
].data_arg
],
1714 &args_size
[specs
[cnt
].data_arg
]);
1719 /* Now we know all the types and the order. Fill in the argument
1721 for (cnt
= 0; cnt
< nargs
; ++cnt
)
1722 switch (args_type
[cnt
])
1724 #define T(tag, mem, type) \
1726 args_value[cnt].mem = va_arg (*ap_savep, type); \
1729 T (PA_WCHAR
, pa_wchar
, wint_t);
1730 case PA_CHAR
: /* Promoted. */
1731 case PA_INT
|PA_FLAG_SHORT
: /* Promoted. */
1732 #if LONG_MAX == INT_MAX
1733 case PA_INT
|PA_FLAG_LONG
:
1735 T (PA_INT
, pa_int
, int);
1736 #if LONG_MAX == LONG_LONG_MAX
1737 case PA_INT
|PA_FLAG_LONG
:
1739 T (PA_INT
|PA_FLAG_LONG_LONG
, pa_long_long_int
, long long int);
1740 #if LONG_MAX != INT_MAX && LONG_MAX != LONG_LONG_MAX
1743 case PA_FLOAT
: /* Promoted. */
1744 T (PA_DOUBLE
, pa_double
, double);
1745 case PA_DOUBLE
|PA_FLAG_LONG_DOUBLE
:
1746 if (__glibc_unlikely ((mode_flags
& PRINTF_LDBL_IS_DBL
) != 0))
1748 args_value
[cnt
].pa_double
= va_arg (*ap_savep
, double);
1749 args_type
[cnt
] &= ~PA_FLAG_LONG_DOUBLE
;
1751 #if __HAVE_FLOAT128_UNLIKE_LDBL
1752 else if ((mode_flags
& PRINTF_LDBL_USES_FLOAT128
) != 0)
1753 args_value
[cnt
].pa_float128
= va_arg (*ap_savep
, _Float128
);
1756 args_value
[cnt
].pa_long_double
= va_arg (*ap_savep
, long double);
1758 case PA_STRING
: /* All pointers are the same */
1759 case PA_WSTRING
: /* All pointers are the same */
1760 T (PA_POINTER
, pa_pointer
, void *);
1763 if ((args_type
[cnt
] & PA_FLAG_PTR
) != 0)
1764 args_value
[cnt
].pa_pointer
= va_arg (*ap_savep
, void *);
1765 else if (__glibc_unlikely (__printf_va_arg_table
!= NULL
)
1766 && __printf_va_arg_table
[args_type
[cnt
] - PA_LAST
] != NULL
)
1768 args_value
[cnt
].pa_user
= alloca (args_size
[cnt
]);
1769 (*__printf_va_arg_table
[args_type
[cnt
] - PA_LAST
])
1770 (args_value
[cnt
].pa_user
, ap_savep
);
1773 memset (&args_value
[cnt
], 0, sizeof (args_value
[cnt
]));
1776 /* Error case. Not all parameters appear in N$ format
1777 strings. We have no way to determine their type. */
1778 assert ((mode_flags
& PRINTF_FORTIFY
) != 0);
1779 __libc_fatal ("*** invalid %N$ use detected ***\n");
1782 /* Now walk through all format specifiers and process them. */
1783 for (; (size_t) nspecs_done
< nspecs
; ++nspecs_done
)
1790 unsigned long long int longlong
;
1791 unsigned long int word
;
1794 CHAR_T
*string
; /* Pointer to argument string. */
1796 /* Fill variables from values in struct. */
1797 int alt
= specs
[nspecs_done
].info
.alt
;
1798 int space
= specs
[nspecs_done
].info
.space
;
1799 int left
= specs
[nspecs_done
].info
.left
;
1800 int showsign
= specs
[nspecs_done
].info
.showsign
;
1801 int group
= specs
[nspecs_done
].info
.group
;
1802 int is_long_double
__attribute__ ((unused
))
1803 = specs
[nspecs_done
].info
.is_long_double
;
1804 int is_short
= specs
[nspecs_done
].info
.is_short
;
1805 int is_char
= specs
[nspecs_done
].info
.is_char
;
1806 int is_long
= specs
[nspecs_done
].info
.is_long
;
1807 int width
= specs
[nspecs_done
].info
.width
;
1808 int prec
= specs
[nspecs_done
].info
.prec
;
1809 int use_outdigits
= specs
[nspecs_done
].info
.i18n
;
1810 char pad
= specs
[nspecs_done
].info
.pad
;
1811 CHAR_T spec
= specs
[nspecs_done
].info
.spec
;
1813 CHAR_T
*workend
= work_buffer
+ WORK_BUFFER_SIZE
;
1815 /* Fill in last information. */
1816 if (specs
[nspecs_done
].width_arg
!= -1)
1818 /* Extract the field width from an argument. */
1819 specs
[nspecs_done
].info
.width
=
1820 args_value
[specs
[nspecs_done
].width_arg
].pa_int
;
1822 if (specs
[nspecs_done
].info
.width
< 0)
1823 /* If the width value is negative left justification is
1824 selected and the value is taken as being positive. */
1826 specs
[nspecs_done
].info
.width
*= -1;
1827 left
= specs
[nspecs_done
].info
.left
= 1;
1829 width
= specs
[nspecs_done
].info
.width
;
1832 if (specs
[nspecs_done
].prec_arg
!= -1)
1834 /* Extract the precision from an argument. */
1835 specs
[nspecs_done
].info
.prec
=
1836 args_value
[specs
[nspecs_done
].prec_arg
].pa_int
;
1838 if (specs
[nspecs_done
].info
.prec
< 0)
1839 /* If the precision is negative the precision is
1841 specs
[nspecs_done
].info
.prec
= -1;
1843 prec
= specs
[nspecs_done
].info
.prec
;
1846 /* Process format specifiers. */
1849 extern printf_function
**__printf_function_table
;
1852 if (spec
<= UCHAR_MAX
1853 && __printf_function_table
!= NULL
1854 && __printf_function_table
[(size_t) spec
] != NULL
)
1856 const void **ptr
= alloca (specs
[nspecs_done
].ndata_args
1857 * sizeof (const void *));
1859 /* Fill in an array of pointers to the argument values. */
1860 for (unsigned int i
= 0; i
< specs
[nspecs_done
].ndata_args
;
1862 ptr
[i
] = &args_value
[specs
[nspecs_done
].data_arg
+ i
];
1864 /* Call the function. */
1865 function_done
= __printf_function_table
[(size_t) spec
]
1866 (s
, &specs
[nspecs_done
].info
, ptr
);
1868 if (function_done
!= -2)
1870 /* If an error occurred we don't have information
1871 about # of chars. */
1872 if (function_done
< 0)
1874 /* Function has set errno. */
1879 done_add (function_done
);
1884 JUMP (spec
, step4_jumps
);
1886 #define process_arg_data args_value[specs[nspecs_done].data_arg]
1887 #define process_arg_int() process_arg_data.pa_int
1888 #define process_arg_long_int() process_arg_data.pa_long_int
1889 #define process_arg_long_long_int() process_arg_data.pa_long_long_int
1890 #define process_arg_pointer() process_arg_data.pa_pointer
1891 #define process_arg_string() process_arg_data.pa_string
1892 #define process_arg_unsigned_int() process_arg_data.pa_u_int
1893 #define process_arg_unsigned_long_int() process_arg_data.pa_u_long_int
1894 #define process_arg_unsigned_long_long_int() process_arg_data.pa_u_long_long_int
1895 #define process_arg_wchar_t() process_arg_data.pa_wchar
1896 #define process_arg_wstring() process_arg_data.pa_wstring
1898 process_string_arg ();
1899 #undef process_arg_data
1900 #undef process_arg_int
1901 #undef process_arg_long_int
1902 #undef process_arg_long_long_int
1903 #undef process_arg_pointer
1904 #undef process_arg_string
1905 #undef process_arg_unsigned_int
1906 #undef process_arg_unsigned_long_int
1907 #undef process_arg_unsigned_long_long_int
1908 #undef process_arg_wchar_t
1909 #undef process_arg_wstring
1912 LABEL (form_floathex
):
1915 = (const void *) &args_value
[specs
[nspecs_done
].data_arg
];
1916 if (__glibc_unlikely ((mode_flags
& PRINTF_LDBL_IS_DBL
) != 0))
1918 specs
[nspecs_done
].data_arg_type
= PA_DOUBLE
;
1919 specs
[nspecs_done
].info
.is_long_double
= 0;
1921 SETUP_FLOAT128_INFO (specs
[nspecs_done
].info
);
1924 = __printf_fp_spec (s
, &specs
[nspecs_done
].info
, &ptr
);
1925 if (function_done
< 0)
1927 /* Error in print handler; up to handler to set errno. */
1931 done_add (function_done
);
1935 LABEL (form_unknown
):
1940 ptr
= alloca (specs
[nspecs_done
].ndata_args
1941 * sizeof (const void *));
1943 /* Fill in an array of pointers to the argument values. */
1944 for (i
= 0; i
< specs
[nspecs_done
].ndata_args
; ++i
)
1945 ptr
[i
] = &args_value
[specs
[nspecs_done
].data_arg
+ i
];
1947 /* Call the function. */
1948 function_done
= printf_unknown (s
, &specs
[nspecs_done
].info
,
1951 /* If an error occurred we don't have information about #
1953 if (function_done
< 0)
1955 /* Function has set errno. */
1960 done_add (function_done
);
1965 /* Write the following constant string. */
1966 outstring (specs
[nspecs_done
].end_of_fmt
,
1967 specs
[nspecs_done
].next_fmt
1968 - specs
[nspecs_done
].end_of_fmt
);
1971 scratch_buffer_free (&argsbuf
);
1972 scratch_buffer_free (&specsbuf
);
1976 /* Handle an unknown format specifier. This prints out a canonicalized
1977 representation of the format spec itself. */
1979 printf_unknown (FILE *s
, const struct printf_info
*info
,
1980 const void *const *args
)
1984 CHAR_T work_buffer
[MAX (sizeof (info
->width
), sizeof (info
->prec
)) * 3];
1985 CHAR_T
*const workend
1986 = &work_buffer
[sizeof (work_buffer
) / sizeof (CHAR_T
)];
1997 else if (info
->space
)
2001 if (info
->pad
== L_('0'))
2006 if (info
->width
!= 0)
2008 w
= _itoa_word (info
->width
, workend
, 10, 0);
2013 if (info
->prec
!= -1)
2016 w
= _itoa_word (info
->prec
, workend
, 10, 0);
2021 if (info
->spec
!= L_('\0'))
2022 outchar (info
->spec
);
2028 /* Group the digits from W to REAR_PTR according to the grouping rules
2029 of the current locale. The interpretation of GROUPING is as in
2030 `struct lconv' from <locale.h>. The grouped number extends from
2031 the returned pointer until REAR_PTR. FRONT_PTR to W is used as a
2034 group_number (CHAR_T
*front_ptr
, CHAR_T
*w
, CHAR_T
*rear_ptr
,
2035 const char *grouping
, THOUSANDS_SEP_T thousands_sep
)
2037 /* Length of the current group. */
2039 #ifndef COMPILE_WPRINTF
2040 /* Length of the separator (in wide mode, the separator is always a
2041 single wide character). */
2042 int tlen
= strlen (thousands_sep
);
2045 /* We treat all negative values like CHAR_MAX. */
2047 if (*grouping
== CHAR_MAX
|| *grouping
<= 0)
2048 /* No grouping should be done. */
2053 /* Copy existing string so that nothing gets overwritten. */
2054 memmove (front_ptr
, w
, (rear_ptr
- w
) * sizeof (CHAR_T
));
2055 CHAR_T
*s
= front_ptr
+ (rear_ptr
- w
);
2059 /* Process all characters in the string. */
2060 while (s
> front_ptr
)
2064 if (--len
== 0 && s
> front_ptr
)
2066 /* A new group begins. */
2067 #ifdef COMPILE_WPRINTF
2069 *--w
= thousands_sep
;
2071 /* Not enough room for the separator. */
2077 *--w
= thousands_sep
[--cnt
];
2080 /* Not enough room for the separator. */
2084 if (*grouping
== CHAR_MAX
2091 /* No further grouping to be done. Copy the rest of the
2094 memmove (w
, front_ptr
, (s
- front_ptr
) * sizeof (CHAR_T
));
2097 else if (*grouping
!= '\0')
2100 /* The previous grouping repeats ad infinitum. */
2107 /* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
2110 struct _IO_FILE_plus _f
;
2111 #ifdef COMPILE_WPRINTF
2112 struct _IO_wide_data _wide_data
;
2115 #ifdef _IO_MTSAFE_IO
2121 _IO_helper_overflow (FILE *s
, int c
)
2123 FILE *target
= ((struct helper_file
*) s
)->_put_stream
;
2124 #ifdef COMPILE_WPRINTF
2125 int used
= s
->_wide_data
->_IO_write_ptr
- s
->_wide_data
->_IO_write_base
;
2128 size_t written
= _IO_sputn (target
, s
->_wide_data
->_IO_write_base
, used
);
2129 if (written
== 0 || written
== WEOF
)
2131 __wmemmove (s
->_wide_data
->_IO_write_base
,
2132 s
->_wide_data
->_IO_write_base
+ written
,
2134 s
->_wide_data
->_IO_write_ptr
-= written
;
2137 int used
= s
->_IO_write_ptr
- s
->_IO_write_base
;
2140 size_t written
= _IO_sputn (target
, s
->_IO_write_base
, used
);
2141 if (written
== 0 || written
== EOF
)
2143 memmove (s
->_IO_write_base
, s
->_IO_write_base
+ written
,
2145 s
->_IO_write_ptr
-= written
;
2151 #ifdef COMPILE_WPRINTF
2152 static const struct _IO_jump_t _IO_helper_jumps libio_vtable
=
2155 JUMP_INIT (finish
, _IO_wdefault_finish
),
2156 JUMP_INIT (overflow
, _IO_helper_overflow
),
2157 JUMP_INIT (underflow
, _IO_default_underflow
),
2158 JUMP_INIT (uflow
, _IO_default_uflow
),
2159 JUMP_INIT (pbackfail
, (_IO_pbackfail_t
) _IO_wdefault_pbackfail
),
2160 JUMP_INIT (xsputn
, _IO_wdefault_xsputn
),
2161 JUMP_INIT (xsgetn
, _IO_wdefault_xsgetn
),
2162 JUMP_INIT (seekoff
, _IO_default_seekoff
),
2163 JUMP_INIT (seekpos
, _IO_default_seekpos
),
2164 JUMP_INIT (setbuf
, _IO_default_setbuf
),
2165 JUMP_INIT (sync
, _IO_default_sync
),
2166 JUMP_INIT (doallocate
, _IO_wdefault_doallocate
),
2167 JUMP_INIT (read
, _IO_default_read
),
2168 JUMP_INIT (write
, _IO_default_write
),
2169 JUMP_INIT (seek
, _IO_default_seek
),
2170 JUMP_INIT (close
, _IO_default_close
),
2171 JUMP_INIT (stat
, _IO_default_stat
)
2174 static const struct _IO_jump_t _IO_helper_jumps libio_vtable
=
2177 JUMP_INIT (finish
, _IO_default_finish
),
2178 JUMP_INIT (overflow
, _IO_helper_overflow
),
2179 JUMP_INIT (underflow
, _IO_default_underflow
),
2180 JUMP_INIT (uflow
, _IO_default_uflow
),
2181 JUMP_INIT (pbackfail
, _IO_default_pbackfail
),
2182 JUMP_INIT (xsputn
, _IO_default_xsputn
),
2183 JUMP_INIT (xsgetn
, _IO_default_xsgetn
),
2184 JUMP_INIT (seekoff
, _IO_default_seekoff
),
2185 JUMP_INIT (seekpos
, _IO_default_seekpos
),
2186 JUMP_INIT (setbuf
, _IO_default_setbuf
),
2187 JUMP_INIT (sync
, _IO_default_sync
),
2188 JUMP_INIT (doallocate
, _IO_default_doallocate
),
2189 JUMP_INIT (read
, _IO_default_read
),
2190 JUMP_INIT (write
, _IO_default_write
),
2191 JUMP_INIT (seek
, _IO_default_seek
),
2192 JUMP_INIT (close
, _IO_default_close
),
2193 JUMP_INIT (stat
, _IO_default_stat
)
2198 buffered_vfprintf (FILE *s
, const CHAR_T
*format
, va_list args
,
2199 unsigned int mode_flags
)
2202 struct helper_file helper
;
2203 FILE *hp
= (FILE *) &helper
._f
;
2204 int result
, to_flush
;
2206 /* Orient the stream. */
2211 /* Initialize helper. */
2212 helper
._put_stream
= s
;
2213 #ifdef COMPILE_WPRINTF
2214 hp
->_wide_data
= &helper
._wide_data
;
2215 _IO_wsetp (hp
, buf
, buf
+ sizeof buf
/ sizeof (CHAR_T
));
2218 _IO_setp (hp
, buf
, buf
+ sizeof buf
);
2221 hp
->_flags
= _IO_MAGIC
|_IO_NO_READS
|_IO_USER_LOCK
;
2222 #if _IO_JUMPS_OFFSET
2223 hp
->_vtable_offset
= 0;
2225 #ifdef _IO_MTSAFE_IO
2228 hp
->_flags2
= s
->_flags2
;
2229 _IO_JUMPS (&helper
._f
) = (struct _IO_jump_t
*) &_IO_helper_jumps
;
2231 /* Now print to helper instead. */
2232 result
= vfprintf (hp
, format
, args
, mode_flags
);
2235 __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile
, s
);
2238 /* Now flush anything from the helper to the S. */
2239 #ifdef COMPILE_WPRINTF
2240 if ((to_flush
= (hp
->_wide_data
->_IO_write_ptr
2241 - hp
->_wide_data
->_IO_write_base
)) > 0)
2243 if ((int) _IO_sputn (s
, hp
->_wide_data
->_IO_write_base
, to_flush
)
2248 if ((to_flush
= hp
->_IO_write_ptr
- hp
->_IO_write_base
) > 0)
2250 if ((int) _IO_sputn (s
, hp
->_IO_write_base
, to_flush
) != to_flush
)
2255 /* Unlock the stream. */
2256 _IO_funlockfile (s
);
2257 __libc_cleanup_region_end (0);