vfwprintf.c revision 105204
198944Sobrien/*- 298944Sobrien * Copyright (c) 1990, 1993 3130803Smarcel * The Regents of the University of California. All rights reserved. 4130803Smarcel * 598944Sobrien * This code is derived from software contributed to Berkeley by 698944Sobrien * Chris Torek. 798944Sobrien * 898944Sobrien * Redistribution and use in source and binary forms, with or without 998944Sobrien * modification, are permitted provided that the following conditions 1098944Sobrien * are met: 1198944Sobrien * 1. Redistributions of source code must retain the above copyright 1298944Sobrien * notice, this list of conditions and the following disclaimer. 1398944Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1498944Sobrien * notice, this list of conditions and the following disclaimer in the 1598944Sobrien * documentation and/or other materials provided with the distribution. 1698944Sobrien * 3. All advertising materials mentioning features or use of this software 1798944Sobrien * must display the following acknowledgement: 1898944Sobrien * This product includes software developed by the University of 1998944Sobrien * California, Berkeley and its contributors. 2098944Sobrien * 4. Neither the name of the University nor the names of its contributors 2198944Sobrien * may be used to endorse or promote products derived from this software 2298944Sobrien * without specific prior written permission. 23130803Smarcel * 2498944Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2598944Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2698944Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27130803Smarcel * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2898944Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29130803Smarcel * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3098944Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31130803Smarcel * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3298944Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33130803Smarcel * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3498944Sobrien * SUCH DAMAGE. 3598944Sobrien */ 3698944Sobrien 3798944Sobrien#include <sys/cdefs.h> 38130803Smarcel#if 0 3998944Sobrien#if defined(LIBC_SCCS) && !defined(lint) 40130803Smarcelstatic char sccsid[] = "@(#)vfprintf.c 8.1 (Berkeley) 6/4/93"; 41130803Smarcel#endif /* LIBC_SCCS and not lint */ 42130803Smarcel__FBSDID("FreeBSD: src/lib/libc/stdio/vfprintf.c,v 1.45 2002/09/06 11:23:55 tjr Exp "); 4398944Sobrien#endif 4498944Sobrien__FBSDID("$FreeBSD: head/lib/libc/stdio/vfwprintf.c 105204 2002-10-16 03:55:53Z tjr $"); 45130803Smarcel 46130803Smarcel/* 4798944Sobrien * Actual wprintf innards. 4898944Sobrien * 49130803Smarcel * Avoid making gratuitous changes to this source file; it should be kept 5098944Sobrien * as close as possible to vfprintf.c for ease of maintenance. 51130803Smarcel */ 52130803Smarcel 5398944Sobrien#include "namespace.h" 54130803Smarcel#include <sys/types.h> 55130803Smarcel 56130803Smarcel#include <ctype.h> 57130803Smarcel#include <limits.h> 5898944Sobrien#include <locale.h> 5998944Sobrien#include <stdarg.h> 60130803Smarcel#include <stddef.h> 6198944Sobrien#include <stdint.h> 62130803Smarcel#include <stdio.h> 63130803Smarcel#include <stdlib.h> 6498944Sobrien#include <string.h> 65130803Smarcel#include <wchar.h> 6698944Sobrien#include <wctype.h> 6798944Sobrien#include "un-namespace.h" 68130803Smarcel 6998944Sobrien#include "libc_private.h" 7098944Sobrien#include "local.h" 71130803Smarcel#include "fvwrite.h" 7298944Sobrien 73130803Smarcel/* Define FLOATING_POINT to get floating point. */ 74130803Smarcel#define FLOATING_POINT 75130803Smarcel 7698944Sobrienunion arg { 77130803Smarcel int intarg; 78130803Smarcel u_int uintarg; 79130803Smarcel long longarg; 80130803Smarcel u_long ulongarg; 81130803Smarcel long long longlongarg; 82130803Smarcel unsigned long long ulonglongarg; 83130803Smarcel ptrdiff_t ptrdiffarg; 84130803Smarcel size_t sizearg; 8598944Sobrien intmax_t intmaxarg; 86130803Smarcel uintmax_t uintmaxarg; 87130803Smarcel void *pvoidarg; 88130803Smarcel char *pchararg; 89130803Smarcel signed char *pschararg; 90130803Smarcel short *pshortarg; 91130803Smarcel int *pintarg; 92130803Smarcel long *plongarg; 93130803Smarcel long long *plonglongarg; 94130803Smarcel ptrdiff_t *pptrdiffarg; 95130803Smarcel size_t *psizearg; 96130803Smarcel intmax_t *pintmaxarg; 97130803Smarcel#ifdef FLOATING_POINT 98130803Smarcel double doublearg; 99130803Smarcel long double longdoublearg; 100130803Smarcel#endif 101130803Smarcel wint_t wintarg; 102130803Smarcel wchar_t *pwchararg; 103130803Smarcel}; 104130803Smarcel 105130803Smarcel/* 106130803Smarcel * Type ids for argument type table. 107130803Smarcel */ 108130803Smarcelenum typeid { 109130803Smarcel T_UNUSED, TP_SHORT, T_INT, T_U_INT, TP_INT, 110130803Smarcel T_LONG, T_U_LONG, TP_LONG, T_LLONG, T_U_LLONG, TP_LLONG, 111130803Smarcel T_PTRDIFFT, TP_PTRDIFFT, T_SIZET, TP_SIZET, 112130803Smarcel T_INTMAXT, T_UINTMAXT, TP_INTMAXT, TP_VOID, TP_CHAR, TP_SCHAR, 113130803Smarcel T_DOUBLE, T_LONG_DOUBLE, T_WINT, TP_WCHAR 114130803Smarcel}; 115130803Smarcel 116130803Smarcelstatic int __sbprintf(FILE *, const wchar_t *, va_list); 117130803Smarcelstatic wchar_t *__ujtoa(uintmax_t, wchar_t *, int, int, wchar_t *, int, char, 118130803Smarcel const char *); 119130803Smarcelstatic wchar_t *__ultoa(u_long, wchar_t *, int, int, wchar_t *, int, char, 120130803Smarcel const char *); 121130803Smarcelstatic wchar_t *__mbsconv(char *, int); 122130803Smarcelstatic void __find_arguments(const wchar_t *, va_list, union arg **); 123130803Smarcelstatic void __grow_type_table(int, enum typeid **, int *); 124130803Smarcel 125130803Smarcel/* 126130803Smarcel * Helper function for `fprintf to unbuffered unix file': creates a 127130803Smarcel * temporary buffer. We only work on write-only files; this avoids 128130803Smarcel * worries about ungetc buffers and so forth. 129130803Smarcel */ 130130803Smarcelstatic int 131130803Smarcel__sbprintf(FILE *fp, const wchar_t *fmt, va_list ap) 132130803Smarcel{ 133130803Smarcel int ret; 134130803Smarcel FILE fake; 135130803Smarcel unsigned char buf[BUFSIZ]; 136130803Smarcel 137130803Smarcel /* copy the important variables */ 138130803Smarcel fake._flags = fp->_flags & ~__SNBF; 139130803Smarcel fake._file = fp->_file; 140130803Smarcel fake._cookie = fp->_cookie; 141130803Smarcel fake._write = fp->_write; 142130803Smarcel fake._extra = fp->_extra; 143130803Smarcel 144130803Smarcel /* set up the buffer */ 145130803Smarcel fake._bf._base = fake._p = buf; 146130803Smarcel fake._bf._size = fake._w = sizeof(buf); 147130803Smarcel fake._lbfsize = 0; /* not actually used, but Just In Case */ 148130803Smarcel 149130803Smarcel /* do the work, then copy any error status */ 150130803Smarcel ret = __vfwprintf(&fake, fmt, ap); 151130803Smarcel if (ret >= 0 && __fflush(&fake)) 152130803Smarcel ret = WEOF; 153130803Smarcel if (fake._flags & __SERR) 154130803Smarcel fp->_flags |= __SERR; 155130803Smarcel return (ret); 156130803Smarcel} 157130803Smarcel 158130803Smarcel/* 159130803Smarcel * Macros for converting digits to letters and vice versa 160130803Smarcel */ 161130803Smarcel#define to_digit(c) ((c) - '0') 162130803Smarcel#define is_digit(c) ((unsigned)to_digit(c) <= 9) 163130803Smarcel#define to_char(n) ((n) + '0') 164130803Smarcel 165130803Smarcel/* 166130803Smarcel * Convert an unsigned long to ASCII for printf purposes, returning 167130803Smarcel * a pointer to the first character of the string representation. 168130803Smarcel * Octal numbers can be forced to have a leading zero; hex numbers 169130803Smarcel * use the given digits. 170130803Smarcel */ 171static wchar_t * 172__ultoa(u_long val, wchar_t *endp, int base, int octzero, wchar_t *xdigs, 173 int needgrp, char thousep, const char *grp) 174{ 175 wchar_t *cp = endp; 176 long sval; 177 int ndig; 178 179 /* 180 * Handle the three cases separately, in the hope of getting 181 * better/faster code. 182 */ 183 switch (base) { 184 case 10: 185 if (val < 10) { /* many numbers are 1 digit */ 186 *--cp = to_char(val); 187 return (cp); 188 } 189 ndig = 0; 190 /* 191 * On many machines, unsigned arithmetic is harder than 192 * signed arithmetic, so we do at most one unsigned mod and 193 * divide; this is sufficient to reduce the range of 194 * the incoming value to where signed arithmetic works. 195 */ 196 if (val > LONG_MAX) { 197 *--cp = to_char(val % 10); 198 ndig++; 199 sval = val / 10; 200 } else 201 sval = val; 202 do { 203 *--cp = to_char(sval % 10); 204 ndig++; 205 /* 206 * If (*grp == CHAR_MAX) then no more grouping 207 * should be performed. 208 */ 209 if (needgrp && ndig == *grp && *grp != CHAR_MAX 210 && sval > 9) { 211 *--cp = thousep; 212 ndig = 0; 213 /* 214 * If (*(grp+1) == '\0') then we have to 215 * use *grp character (last grouping rule) 216 * for all next cases 217 */ 218 if (*(grp+1) != '\0') 219 grp++; 220 } 221 sval /= 10; 222 } while (sval != 0); 223 break; 224 225 case 8: 226 do { 227 *--cp = to_char(val & 7); 228 val >>= 3; 229 } while (val); 230 if (octzero && *cp != '0') 231 *--cp = '0'; 232 break; 233 234 case 16: 235 do { 236 *--cp = xdigs[val & 15]; 237 val >>= 4; 238 } while (val); 239 break; 240 241 default: /* oops */ 242 abort(); 243 } 244 return (cp); 245} 246 247/* Identical to __ultoa, but for intmax_t. */ 248static wchar_t * 249__ujtoa(uintmax_t val, wchar_t *endp, int base, int octzero, wchar_t *xdigs, 250 int needgrp, char thousep, const char *grp) 251{ 252 wchar_t *cp = endp; 253 intmax_t sval; 254 int ndig; 255 256 /* quick test for small values; __ultoa is typically much faster */ 257 /* (perhaps instead we should run until small, then call __ultoa?) */ 258 if (val <= ULONG_MAX) 259 return (__ultoa((u_long)val, endp, base, octzero, xdigs, 260 needgrp, thousep, grp)); 261 switch (base) { 262 case 10: 263 if (val < 10) { 264 *--cp = to_char(val % 10); 265 return (cp); 266 } 267 ndig = 0; 268 if (val > INTMAX_MAX) { 269 *--cp = to_char(val % 10); 270 ndig++; 271 sval = val / 10; 272 } else 273 sval = val; 274 do { 275 *--cp = to_char(sval % 10); 276 ndig++; 277 /* 278 * If (*grp == CHAR_MAX) then no more grouping 279 * should be performed. 280 */ 281 if (needgrp && *grp != CHAR_MAX && ndig == *grp 282 && sval > 9) { 283 *--cp = thousep; 284 ndig = 0; 285 /* 286 * If (*(grp+1) == '\0') then we have to 287 * use *grp character (last grouping rule) 288 * for all next cases 289 */ 290 if (*(grp+1) != '\0') 291 grp++; 292 } 293 sval /= 10; 294 } while (sval != 0); 295 break; 296 297 case 8: 298 do { 299 *--cp = to_char(val & 7); 300 val >>= 3; 301 } while (val); 302 if (octzero && *cp != '0') 303 *--cp = '0'; 304 break; 305 306 case 16: 307 do { 308 *--cp = xdigs[val & 15]; 309 val >>= 4; 310 } while (val); 311 break; 312 313 default: 314 abort(); 315 } 316 return (cp); 317} 318 319/* 320 * Convert a multibyte character string argument for the %s format to a wide 321 * string representation. ``prec'' specifies the maximum number of bytes 322 * to output. If ``prec'' is greater than or equal to zero, we can't assume 323 * that the multibyte char. string ends in a null character. 324 */ 325static wchar_t * 326__mbsconv(char *mbsarg, int prec) 327{ 328 wchar_t *convbuf, *wcp; 329 const char *p; 330 size_t insize, nchars, nconv; 331 mbstate_t mbs; 332 333 /* 334 * Supplied argument is a multibyte string; convert it to wide 335 * characters first. 336 */ 337 if (prec >= 0) { 338 /* 339 * String is not guaranteed to be NUL-terminated. Find the 340 * number of characters to print. 341 */ 342 memset(&mbs, 0, sizeof(mbs)); 343 p = mbsarg; 344 insize = nchars = 0; 345 while (nchars != (size_t)prec) { 346 nconv = mbrlen(p, MB_CUR_MAX, &mbs); 347 if (nconv == 0 || nconv == (size_t)-1 || 348 nconv == (size_t)-2) 349 break; 350 p += nconv; 351 nchars++; 352 insize += nconv; 353 } 354 if (nconv == (size_t)-1 || nconv == (size_t)-2) 355 return (NULL); 356 } else 357 insize = strlen(mbsarg); 358 359 /* 360 * Allocate buffer for the result and perform the conversion, 361 * converting at most `size' bytes of the input multibyte string to 362 * wide characters for printing. 363 */ 364 convbuf = malloc((insize + 1) * sizeof(*convbuf)); 365 if (convbuf == NULL) 366 return (NULL); 367 wcp = convbuf; 368 p = mbsarg; 369 memset(&mbs, 0, sizeof(mbs)); 370 while (insize != 0) { 371 nconv = mbrtowc(wcp, p, insize, &mbs); 372 if (nconv == 0 || nconv == (size_t)-1 || nconv == (size_t)-2) 373 break; 374 wcp++; 375 p += nconv; 376 insize -= nconv; 377 } 378 if (nconv == (size_t)-1 || nconv == (size_t)-2) { 379 free(convbuf); 380 return (NULL); 381 } 382 *wcp = L'\0'; 383 384 return (convbuf); 385} 386 387/* 388 * MT-safe version 389 */ 390int 391vfwprintf(FILE * __restrict fp, const wchar_t * __restrict fmt0, va_list ap) 392 393{ 394 int ret; 395 396 FLOCKFILE(fp); 397 ret = __vfwprintf(fp, fmt0, ap); 398 FUNLOCKFILE(fp); 399 return (ret); 400} 401 402#ifdef FLOATING_POINT 403#include <math.h> 404#include "floatio.h" 405 406#define BUF ((MAXEXP*2)+MAXFRACT+1) /* + decimal point */ 407#define DEFPREC 6 408 409static wchar_t *cvt(double, int, int, char *, int *, wchar_t, int *, 410 wchar_t **); 411static int exponent(wchar_t *, int, wchar_t); 412 413#else /* no FLOATING_POINT */ 414 415#define BUF 136 416 417#endif /* FLOATING_POINT */ 418 419#define STATIC_ARG_TBL_SIZE 8 /* Size of static argument table. */ 420 421/* 422 * Flags used during conversion. 423 */ 424#define ALT 0x001 /* alternate form */ 425#define HEXPREFIX 0x002 /* add 0x or 0X prefix */ 426#define LADJUST 0x004 /* left adjustment */ 427#define LONGDBL 0x008 /* long double */ 428#define LONGINT 0x010 /* long integer */ 429#define LLONGINT 0x020 /* long long integer */ 430#define SHORTINT 0x040 /* short integer */ 431#define ZEROPAD 0x080 /* zero (as opposed to blank) pad */ 432#define FPT 0x100 /* Floating point number */ 433#define GROUPING 0x200 /* use grouping ("'" flag) */ 434 /* C99 additional size modifiers: */ 435#define SIZET 0x400 /* size_t */ 436#define PTRDIFFT 0x800 /* ptrdiff_t */ 437#define INTMAXT 0x1000 /* intmax_t */ 438#define CHARINT 0x2000 /* print char using int format */ 439 440/* 441 * Non-MT-safe version 442 */ 443int 444__vfwprintf(FILE *fp, const wchar_t *fmt0, va_list ap) 445{ 446 wchar_t *fmt; /* format string */ 447 wchar_t ch; /* character from fmt */ 448 int n, n2; /* handy integer (short term usage) */ 449 wchar_t *cp; /* handy char pointer (short term usage) */ 450 int flags; /* flags as above */ 451 int ret; /* return value accumulator */ 452 int width; /* width from format (%8d), or 0 */ 453 int prec; /* precision from format (%.3d), or -1 */ 454 wchar_t sign; /* sign prefix (' ', '+', '-', or \0) */ 455 char thousands_sep; /* locale specific thousands separator */ 456 const char *grouping; /* locale specific numeric grouping rules */ 457#ifdef FLOATING_POINT 458 char *decimal_point; /* locale specific decimal point */ 459 char softsign; /* temporary negative sign for floats */ 460 double _double; /* double precision arguments %[eEfgG] */ 461 int expt; /* integer value of exponent */ 462 int expsize; /* character count for expstr */ 463 int ndig; /* actual number of digits returned by cvt */ 464 wchar_t expstr[7]; /* buffer for exponent string */ 465 wchar_t *dtoaresult; /* buffer allocated by dtoa */ 466#endif 467 u_long ulval; /* integer arguments %[diouxX] */ 468 uintmax_t ujval; /* %j, %ll, %q, %t, %z integers */ 469 int base; /* base for [diouxX] conversion */ 470 int dprec; /* a copy of prec if [diouxX], 0 otherwise */ 471 int realsz; /* field size expanded by dprec, sign, etc */ 472 int size; /* size of converted field or string */ 473 int prsize; /* max size of printed field */ 474 wchar_t *xdigs; /* digits for [xX] conversion */ 475 wchar_t buf[BUF]; /* space for %c, %[diouxX], %[eEfFgG] */ 476 wchar_t ox[2]; /* space for 0x hex-prefix */ 477 union arg *argtable; /* args, built due to positional arg */ 478 union arg statargtable [STATIC_ARG_TBL_SIZE]; 479 int nextarg; /* 1-based argument index */ 480 va_list orgap; /* original argument pointer */ 481 wchar_t *convbuf; /* multibyte to wide conversion result */ 482 483 /* 484 * Choose PADSIZE to trade efficiency vs. size. If larger printf 485 * fields occur frequently, increase PADSIZE and make the initialisers 486 * below longer. 487 */ 488#define PADSIZE 16 /* pad chunk size */ 489 static wchar_t blanks[PADSIZE] = 490 {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '}; 491 static wchar_t zeroes[PADSIZE] = 492 {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'}; 493 494 /* 495 * BEWARE, these `goto error' on error, PRINT uses `n2' and 496 * PAD uses `n'. 497 */ 498#define PRINT(ptr, len) do { \ 499 for (n2 = 0; n2 < (len); n2++) \ 500 __fputwc((ptr)[n2], fp); \ 501} while (0) 502#define PAD(howmany, with) do { \ 503 if ((n = (howmany)) > 0) { \ 504 while (n > PADSIZE) { \ 505 PRINT(with, PADSIZE); \ 506 n -= PADSIZE; \ 507 } \ 508 PRINT(with, n); \ 509 } \ 510} while (0) 511 512 /* 513 * Get the argument indexed by nextarg. If the argument table is 514 * built, use it to get the argument. If its not, get the next 515 * argument (and arguments must be gotten sequentially). 516 */ 517#define GETARG(type) \ 518 ((argtable != NULL) ? *((type*)(&argtable[nextarg++])) : \ 519 (nextarg++, va_arg(ap, type))) 520 521 /* 522 * To extend shorts properly, we need both signed and unsigned 523 * argument extraction methods. 524 */ 525#define SARG() \ 526 (flags&LONGINT ? GETARG(long) : \ 527 flags&SHORTINT ? (long)(short)GETARG(int) : \ 528 flags&CHARINT ? (long)(signed char)GETARG(int) : \ 529 (long)GETARG(int)) 530#define UARG() \ 531 (flags&LONGINT ? GETARG(u_long) : \ 532 flags&SHORTINT ? (u_long)(u_short)GETARG(int) : \ 533 flags&CHARINT ? (u_long)(u_char)GETARG(int) : \ 534 (u_long)GETARG(u_int)) 535#define INTMAX_SIZE (INTMAXT|SIZET|PTRDIFFT|LLONGINT) 536#define SJARG() \ 537 (flags&INTMAXT ? GETARG(intmax_t) : \ 538 flags&SIZET ? (intmax_t)GETARG(size_t) : \ 539 flags&PTRDIFFT ? (intmax_t)GETARG(ptrdiff_t) : \ 540 (intmax_t)GETARG(long long)) 541#define UJARG() \ 542 (flags&INTMAXT ? GETARG(uintmax_t) : \ 543 flags&SIZET ? (uintmax_t)GETARG(size_t) : \ 544 flags&PTRDIFFT ? (uintmax_t)GETARG(ptrdiff_t) : \ 545 (uintmax_t)GETARG(unsigned long long)) 546 547 /* 548 * Get * arguments, including the form *nn$. Preserve the nextarg 549 * that the argument can be gotten once the type is determined. 550 */ 551#define GETASTER(val) \ 552 n2 = 0; \ 553 cp = fmt; \ 554 while (is_digit(*cp)) { \ 555 n2 = 10 * n2 + to_digit(*cp); \ 556 cp++; \ 557 } \ 558 if (*cp == '$') { \ 559 int hold = nextarg; \ 560 if (argtable == NULL) { \ 561 argtable = statargtable; \ 562 __find_arguments (fmt0, orgap, &argtable); \ 563 } \ 564 nextarg = n2; \ 565 val = GETARG (int); \ 566 nextarg = hold; \ 567 fmt = ++cp; \ 568 } else { \ 569 val = GETARG (int); \ 570 } 571 572 573 thousands_sep = '\0'; 574 grouping = NULL; 575#ifdef FLOATING_POINT 576 dtoaresult = NULL; 577 decimal_point = localeconv()->decimal_point; 578#endif 579 convbuf = NULL; 580 /* sorry, fwprintf(read_only_file, L"") returns WEOF, not 0 */ 581 if (cantwrite(fp)) 582 return (EOF); 583 584 /* optimise fprintf(stderr) (and other unbuffered Unix files) */ 585 if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) && 586 fp->_file >= 0) 587 return (__sbprintf(fp, fmt0, ap)); 588 589 fmt = (wchar_t *)fmt0; 590 argtable = NULL; 591 nextarg = 1; 592 va_copy(orgap, ap); 593 ret = 0; 594 595 /* 596 * Scan the format for conversions (`%' character). 597 */ 598 for (;;) { 599 for (cp = fmt; (ch = *fmt) != '\0' && ch != '%'; fmt++) 600 /* void */; 601 if ((n = fmt - cp) != 0) { 602 if ((unsigned)ret + n > INT_MAX) { 603 ret = EOF; 604 goto error; 605 } 606 PRINT(cp, n); 607 ret += n; 608 } 609 if (ch == '\0') 610 goto done; 611 fmt++; /* skip over '%' */ 612 613 flags = 0; 614 dprec = 0; 615 width = 0; 616 prec = -1; 617 sign = '\0'; 618 619rflag: ch = *fmt++; 620reswitch: switch (ch) { 621 case ' ': 622 /*- 623 * ``If the space and + flags both appear, the space 624 * flag will be ignored.'' 625 * -- ANSI X3J11 626 */ 627 if (!sign) 628 sign = ' '; 629 goto rflag; 630 case '#': 631 flags |= ALT; 632 goto rflag; 633 case '*': 634 /*- 635 * ``A negative field width argument is taken as a 636 * - flag followed by a positive field width.'' 637 * -- ANSI X3J11 638 * They don't exclude field widths read from args. 639 */ 640 GETASTER (width); 641 if (width >= 0) 642 goto rflag; 643 width = -width; 644 /* FALLTHROUGH */ 645 case '-': 646 flags |= LADJUST; 647 goto rflag; 648 case '+': 649 sign = '+'; 650 goto rflag; 651 case '\'': 652 flags |= GROUPING; 653 thousands_sep = *(localeconv()->thousands_sep); 654 grouping = localeconv()->grouping; 655 goto rflag; 656 case '.': 657 if ((ch = *fmt++) == '*') { 658 GETASTER (n); 659 prec = n < 0 ? -1 : n; 660 goto rflag; 661 } 662 n = 0; 663 while (is_digit(ch)) { 664 n = 10 * n + to_digit(ch); 665 ch = *fmt++; 666 } 667 prec = n < 0 ? -1 : n; 668 goto reswitch; 669 case '0': 670 /*- 671 * ``Note that 0 is taken as a flag, not as the 672 * beginning of a field width.'' 673 * -- ANSI X3J11 674 */ 675 flags |= ZEROPAD; 676 goto rflag; 677 case '1': case '2': case '3': case '4': 678 case '5': case '6': case '7': case '8': case '9': 679 n = 0; 680 do { 681 n = 10 * n + to_digit(ch); 682 ch = *fmt++; 683 } while (is_digit(ch)); 684 if (ch == '$') { 685 nextarg = n; 686 if (argtable == NULL) { 687 argtable = statargtable; 688 __find_arguments (fmt0, orgap, 689 &argtable); 690 } 691 goto rflag; 692 } 693 width = n; 694 goto reswitch; 695#ifdef FLOATING_POINT 696 case 'L': 697 flags |= LONGDBL; 698 goto rflag; 699#endif 700 case 'h': 701 if (flags & SHORTINT) { 702 flags &= ~SHORTINT; 703 flags |= CHARINT; 704 } else 705 flags |= SHORTINT; 706 goto rflag; 707 case 'j': 708 flags |= INTMAXT; 709 goto rflag; 710 case 'l': 711 if (flags & LONGINT) { 712 flags &= ~LONGINT; 713 flags |= LLONGINT; 714 } else 715 flags |= LONGINT; 716 goto rflag; 717 case 'q': 718 flags |= LLONGINT; /* not necessarily */ 719 goto rflag; 720 case 't': 721 flags |= PTRDIFFT; 722 goto rflag; 723 case 'z': 724 flags |= SIZET; 725 goto rflag; 726 case 'C': 727 flags |= LONGINT; 728 /*FALLTHROUGH*/ 729 case 'c': 730 if (flags & LONGINT) 731 *(cp = buf) = (wchar_t)GETARG(wint_t); 732 else 733 *(cp = buf) = (wchar_t)btowc(GETARG(int)); 734 size = 1; 735 sign = '\0'; 736 break; 737 case 'D': 738 flags |= LONGINT; 739 /*FALLTHROUGH*/ 740 case 'd': 741 case 'i': 742 if (flags & INTMAX_SIZE) { 743 ujval = SJARG(); 744 if ((intmax_t)ujval < 0) { 745 ujval = -ujval; 746 sign = '-'; 747 } 748 } else { 749 ulval = SARG(); 750 if ((long)ulval < 0) { 751 ulval = -ulval; 752 sign = '-'; 753 } 754 } 755 base = 10; 756 goto number; 757#ifdef FLOATING_POINT 758#ifdef HEXFLOAT 759 case 'a': 760 case 'A': 761#endif 762 case 'e': 763 case 'E': 764 /*- 765 * Grouping apply to %i, %d, %u, %f, %F, %g, %G 766 * conversion specifiers only. For other conversions 767 * behavior is undefined. 768 * -- POSIX 769 */ 770 flags &= ~GROUPING; 771 /*FALLTHROUGH*/ 772 case 'f': 773 case 'F': 774 goto fp_begin; 775 case 'g': 776 case 'G': 777 if (prec == 0) 778 prec = 1; 779fp_begin: if (prec == -1) 780 prec = DEFPREC; 781 if (flags & LONGDBL) 782 /* XXX this loses precision. */ 783 _double = (double)GETARG(long double); 784 else 785 _double = GETARG(double); 786 /* do this before tricky precision changes */ 787 if (isinf(_double)) { 788 if (_double < 0) 789 sign = '-'; 790 if (iswupper(ch)) 791 cp = L"INF"; 792 else 793 cp = L"inf"; 794 size = 3; 795 break; 796 } 797 if (isnan(_double)) { 798 if (iswupper(ch)) 799 cp = L"NAN"; 800 else 801 cp = L"nan"; 802 size = 3; 803 break; 804 } 805 flags |= FPT; 806 if (dtoaresult != NULL) { 807 free(dtoaresult); 808 dtoaresult = NULL; 809 } 810 cp = cvt(_double, prec, flags, &softsign, 811 &expt, ch, &ndig, &dtoaresult); 812 if (ch == 'g' || ch == 'G') { 813 if (expt <= -4 || expt > prec) 814 ch = (ch == 'g') ? 'e' : 'E'; 815 else 816 ch = 'g'; 817 } 818 if (ch == 'e' || ch == 'E') { 819 --expt; 820 expsize = exponent(expstr, expt, ch); 821 size = expsize + ndig; 822 if (ndig > 1 || flags & ALT) 823 ++size; 824 } else if (ch == 'f' || ch == 'F') { 825 if (expt > 0) { 826 size = expt; 827 if (prec || flags & ALT) 828 size += prec + 1; 829 } else /* "0.X" */ 830 size = prec + 2; 831 } else if (expt >= ndig) { /* fixed g fmt */ 832 size = expt; 833 if (flags & ALT) 834 ++size; 835 } else 836 size = ndig + (expt > 0 ? 837 1 : 2 - expt); 838 839 if (softsign) 840 sign = '-'; 841 break; 842#endif /* FLOATING_POINT */ 843 case 'n': 844 /* 845 * Assignment-like behavior is specified if the 846 * value overflows or is otherwise unrepresentable. 847 * C99 says to use `signed char' for %hhn conversions. 848 */ 849 if (flags & LLONGINT) 850 *GETARG(long long *) = ret; 851 else if (flags & SIZET) 852 *GETARG(ssize_t *) = (ssize_t)ret; 853 else if (flags & PTRDIFFT) 854 *GETARG(ptrdiff_t *) = ret; 855 else if (flags & INTMAXT) 856 *GETARG(intmax_t *) = ret; 857 else if (flags & LONGINT) 858 *GETARG(long *) = ret; 859 else if (flags & SHORTINT) 860 *GETARG(short *) = ret; 861 else if (flags & CHARINT) 862 *GETARG(signed char *) = ret; 863 else 864 *GETARG(int *) = ret; 865 continue; /* no output */ 866 case 'O': 867 flags |= LONGINT; 868 /*FALLTHROUGH*/ 869 case 'o': 870 if (flags & INTMAX_SIZE) 871 ujval = UJARG(); 872 else 873 ulval = UARG(); 874 base = 8; 875 goto nosign; 876 case 'p': 877 /*- 878 * ``The argument shall be a pointer to void. The 879 * value of the pointer is converted to a sequence 880 * of printable characters, in an implementation- 881 * defined manner.'' 882 * -- ANSI X3J11 883 */ 884 ujval = (uintmax_t)(uintptr_t)GETARG(void *); 885 base = 16; 886 xdigs = L"0123456789abcdef"; 887 flags = flags | INTMAXT | HEXPREFIX; 888 ch = 'x'; 889 goto nosign; 890 case 'S': 891 flags |= LONGINT; 892 /*FALLTHROUGH*/ 893 case 's': 894 if (flags & LONGINT) { 895 if ((cp = GETARG(wchar_t *)) == NULL) 896 cp = L"(null)"; 897 } else { 898 char *mbp; 899 900 if (convbuf != NULL) 901 free(convbuf); 902 if ((mbp = GETARG(char *)) == NULL) 903 cp = L"(null)"; 904 else { 905 convbuf = __mbsconv(mbp, prec); 906 if (convbuf == NULL) 907 goto error; 908 cp = convbuf; 909 } 910 } 911 912 if (prec >= 0) { 913 /* 914 * can't use wcslen; can only look for the 915 * NUL in the first `prec' characters, and 916 * wcslen() will go further. 917 */ 918 wchar_t *p = wmemchr(cp, 0, (size_t)prec); 919 920 if (p != NULL) { 921 size = p - cp; 922 if (size > prec) 923 size = prec; 924 } else 925 size = prec; 926 } else 927 size = wcslen(cp); 928 sign = '\0'; 929 break; 930 case 'U': 931 flags |= LONGINT; 932 /*FALLTHROUGH*/ 933 case 'u': 934 if (flags & INTMAX_SIZE) 935 ujval = UJARG(); 936 else 937 ulval = UARG(); 938 base = 10; 939 goto nosign; 940 case 'X': 941 xdigs = L"0123456789ABCDEF"; 942 goto hex; 943 case 'x': 944 xdigs = L"0123456789abcdef"; 945hex: 946 if (flags & INTMAX_SIZE) 947 ujval = UJARG(); 948 else 949 ulval = UARG(); 950 base = 16; 951 /* leading 0x/X only if non-zero */ 952 if (flags & ALT && 953 (flags & INTMAX_SIZE ? ujval != 0 : ulval != 0)) 954 flags |= HEXPREFIX; 955 956 flags &= ~GROUPING; 957 /* unsigned conversions */ 958nosign: sign = '\0'; 959 /*- 960 * ``... diouXx conversions ... if a precision is 961 * specified, the 0 flag will be ignored.'' 962 * -- ANSI X3J11 963 */ 964number: if ((dprec = prec) >= 0) 965 flags &= ~ZEROPAD; 966 967 /*- 968 * ``The result of converting a zero value with an 969 * explicit precision of zero is no characters.'' 970 * -- ANSI X3J11 971 */ 972 cp = buf + BUF; 973 if (flags & INTMAX_SIZE) { 974 if (ujval != 0 || prec != 0) 975 cp = __ujtoa(ujval, cp, base, 976 flags & ALT, xdigs, 977 flags & GROUPING, thousands_sep, 978 grouping); 979 } else { 980 if (ulval != 0 || prec != 0) 981 cp = __ultoa(ulval, cp, base, 982 flags & ALT, xdigs, 983 flags & GROUPING, thousands_sep, 984 grouping); 985 } 986 size = buf + BUF - cp; 987 break; 988 default: /* "%?" prints ?, unless ? is NUL */ 989 if (ch == '\0') 990 goto done; 991 /* pretend it was %c with argument ch */ 992 cp = buf; 993 *cp = ch; 994 size = 1; 995 sign = '\0'; 996 break; 997 } 998 999 /* 1000 * All reasonable formats wind up here. At this point, `cp' 1001 * points to a string which (if not flags&LADJUST) should be 1002 * padded out to `width' places. If flags&ZEROPAD, it should 1003 * first be prefixed by any sign or other prefix; otherwise, 1004 * it should be blank padded before the prefix is emitted. 1005 * After any left-hand padding and prefixing, emit zeroes 1006 * required by a decimal [diouxX] precision, then print the 1007 * string proper, then emit zeroes required by any leftover 1008 * floating precision; finally, if LADJUST, pad with blanks. 1009 * 1010 * Compute actual size, so we know how much to pad. 1011 * size excludes decimal prec; realsz includes it. 1012 */ 1013 realsz = dprec > size ? dprec : size; 1014 if (sign) 1015 realsz++; 1016 else if (flags & HEXPREFIX) 1017 realsz += 2; 1018 1019 prsize = width > realsz ? width : realsz; 1020 if ((unsigned)ret + prsize > INT_MAX) { 1021 ret = EOF; 1022 goto error; 1023 } 1024 1025 /* right-adjusting blank padding */ 1026 if ((flags & (LADJUST|ZEROPAD)) == 0) 1027 PAD(width - realsz, blanks); 1028 1029 /* prefix */ 1030 if (sign) { 1031 PRINT(&sign, 1); 1032 } else if (flags & HEXPREFIX) { 1033 ox[0] = '0'; 1034 ox[1] = ch; 1035 PRINT(ox, 2); 1036 } 1037 1038 /* right-adjusting zero padding */ 1039 if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) 1040 PAD(width - realsz, zeroes); 1041 1042 /* leading zeroes from decimal precision */ 1043 PAD(dprec - size, zeroes); 1044 1045 /* the string or number proper */ 1046#ifdef FLOATING_POINT 1047 if ((flags & FPT) == 0) { 1048 PRINT(cp, size); 1049 } else { /* glue together f_p fragments */ 1050 if (ch >= 'f') { /* 'f' or 'g' */ 1051 if (_double == 0) { 1052 /* kludge for __dtoa irregularity */ 1053 PRINT(L"0", 1); 1054 if (expt < ndig || (flags & ALT) != 0) { 1055 PRINT(decimal_point, 1); 1056 PAD(ndig - 1, zeroes); 1057 } 1058 } else if (expt <= 0) { 1059 PRINT(L"0", 1); 1060 PRINT(decimal_point, 1); 1061 PAD(-expt, zeroes); 1062 PRINT(cp, ndig); 1063 } else if (expt >= ndig) { 1064 PRINT(cp, ndig); 1065 PAD(expt - ndig, zeroes); 1066 if (flags & ALT) 1067 PRINT(decimal_point, 1); 1068 } else { 1069 PRINT(cp, expt); 1070 cp += expt; 1071 PRINT(decimal_point, 1); 1072 PRINT(cp, ndig-expt); 1073 } 1074 } else { /* 'e' or 'E' */ 1075 if (ndig > 1 || flags & ALT) { 1076 ox[0] = *cp++; 1077 ox[1] = *decimal_point; 1078 PRINT(ox, 2); 1079 if (_double) { 1080 PRINT(cp, ndig-1); 1081 } else /* 0.[0..] */ 1082 /* __dtoa irregularity */ 1083 PAD(ndig - 1, zeroes); 1084 } else /* XeYYY */ 1085 PRINT(cp, 1); 1086 PRINT(expstr, expsize); 1087 } 1088 } 1089#else 1090 PRINT(cp, size); 1091#endif 1092 /* left-adjusting padding (always blank) */ 1093 if (flags & LADJUST) 1094 PAD(width - realsz, blanks); 1095 1096 /* finally, adjust ret */ 1097 ret += prsize; 1098 } 1099done: 1100error: 1101#ifdef FLOATING_POINT 1102 if (dtoaresult != NULL) 1103 free(dtoaresult); 1104#endif 1105 if (convbuf != NULL) 1106 free(convbuf); 1107 if (__sferror(fp)) 1108 ret = EOF; 1109 if ((argtable != NULL) && (argtable != statargtable)) 1110 free (argtable); 1111 return (ret); 1112 /* NOTREACHED */ 1113} 1114 1115/* 1116 * Find all arguments when a positional parameter is encountered. Returns a 1117 * table, indexed by argument number, of pointers to each arguments. The 1118 * initial argument table should be an array of STATIC_ARG_TBL_SIZE entries. 1119 * It will be replaces with a malloc-ed one if it overflows. 1120 */ 1121static void 1122__find_arguments (const wchar_t *fmt0, va_list ap, union arg **argtable) 1123{ 1124 wchar_t *fmt; /* format string */ 1125 wchar_t ch; /* character from fmt */ 1126 int n, n2; /* handy integer (short term usage) */ 1127 wchar_t *cp; /* handy char pointer (short term usage) */ 1128 int flags; /* flags as above */ 1129 int width; /* width from format (%8d), or 0 */ 1130 enum typeid *typetable; /* table of types */ 1131 enum typeid stattypetable [STATIC_ARG_TBL_SIZE]; 1132 int tablesize; /* current size of type table */ 1133 int tablemax; /* largest used index in table */ 1134 int nextarg; /* 1-based argument index */ 1135 1136 /* 1137 * Add an argument type to the table, expanding if necessary. 1138 */ 1139#define ADDTYPE(type) \ 1140 ((nextarg >= tablesize) ? \ 1141 __grow_type_table(nextarg, &typetable, &tablesize) : 0, \ 1142 (nextarg > tablemax) ? tablemax = nextarg : 0, \ 1143 typetable[nextarg++] = type) 1144 1145#define ADDSARG() \ 1146 ((flags&INTMAXT) ? ADDTYPE(T_INTMAXT) : \ 1147 ((flags&SIZET) ? ADDTYPE(T_SIZET) : \ 1148 ((flags&PTRDIFFT) ? ADDTYPE(T_PTRDIFFT) : \ 1149 ((flags&LLONGINT) ? ADDTYPE(T_LLONG) : \ 1150 ((flags&LONGINT) ? ADDTYPE(T_LONG) : ADDTYPE(T_INT)))))) 1151 1152#define ADDUARG() \ 1153 ((flags&INTMAXT) ? ADDTYPE(T_UINTMAXT) : \ 1154 ((flags&SIZET) ? ADDTYPE(T_SIZET) : \ 1155 ((flags&PTRDIFFT) ? ADDTYPE(T_PTRDIFFT) : \ 1156 ((flags&LLONGINT) ? ADDTYPE(T_U_LLONG) : \ 1157 ((flags&LONGINT) ? ADDTYPE(T_U_LONG) : ADDTYPE(T_U_INT)))))) 1158 1159 /* 1160 * Add * arguments to the type array. 1161 */ 1162#define ADDASTER() \ 1163 n2 = 0; \ 1164 cp = fmt; \ 1165 while (is_digit(*cp)) { \ 1166 n2 = 10 * n2 + to_digit(*cp); \ 1167 cp++; \ 1168 } \ 1169 if (*cp == '$') { \ 1170 int hold = nextarg; \ 1171 nextarg = n2; \ 1172 ADDTYPE (T_INT); \ 1173 nextarg = hold; \ 1174 fmt = ++cp; \ 1175 } else { \ 1176 ADDTYPE (T_INT); \ 1177 } 1178 fmt = (wchar_t *)fmt0; 1179 typetable = stattypetable; 1180 tablesize = STATIC_ARG_TBL_SIZE; 1181 tablemax = 0; 1182 nextarg = 1; 1183 memset (typetable, T_UNUSED, STATIC_ARG_TBL_SIZE); 1184 1185 /* 1186 * Scan the format for conversions (`%' character). 1187 */ 1188 for (;;) { 1189 for (cp = fmt; (ch = *fmt) != '\0' && ch != '%'; fmt++) 1190 /* void */; 1191 if (ch == '\0') 1192 goto done; 1193 fmt++; /* skip over '%' */ 1194 1195 flags = 0; 1196 width = 0; 1197 1198rflag: ch = *fmt++; 1199reswitch: switch (ch) { 1200 case ' ': 1201 case '#': 1202 goto rflag; 1203 case '*': 1204 ADDASTER (); 1205 goto rflag; 1206 case '-': 1207 case '+': 1208 case '\'': 1209 goto rflag; 1210 case '.': 1211 if ((ch = *fmt++) == '*') { 1212 ADDASTER (); 1213 goto rflag; 1214 } 1215 while (is_digit(ch)) { 1216 ch = *fmt++; 1217 } 1218 goto reswitch; 1219 case '0': 1220 goto rflag; 1221 case '1': case '2': case '3': case '4': 1222 case '5': case '6': case '7': case '8': case '9': 1223 n = 0; 1224 do { 1225 n = 10 * n + to_digit(ch); 1226 ch = *fmt++; 1227 } while (is_digit(ch)); 1228 if (ch == '$') { 1229 nextarg = n; 1230 goto rflag; 1231 } 1232 width = n; 1233 goto reswitch; 1234#ifdef FLOATING_POINT 1235 case 'L': 1236 flags |= LONGDBL; 1237 goto rflag; 1238#endif 1239 case 'h': 1240 if (flags & SHORTINT) { 1241 flags &= ~SHORTINT; 1242 flags |= CHARINT; 1243 } else 1244 flags |= SHORTINT; 1245 goto rflag; 1246 case 'j': 1247 flags |= INTMAXT; 1248 goto rflag; 1249 case 'l': 1250 if (flags & LONGINT) { 1251 flags &= ~LONGINT; 1252 flags |= LLONGINT; 1253 } else 1254 flags |= LONGINT; 1255 goto rflag; 1256 case 'q': 1257 flags |= LLONGINT; /* not necessarily */ 1258 goto rflag; 1259 case 't': 1260 flags |= PTRDIFFT; 1261 goto rflag; 1262 case 'z': 1263 flags |= SIZET; 1264 goto rflag; 1265 case 'C': 1266 flags |= LONGINT; 1267 /*FALLTHROUGH*/ 1268 case 'c': 1269 if (flags & LONGINT) 1270 ADDTYPE(T_WINT); 1271 else 1272 ADDTYPE(T_INT); 1273 break; 1274 case 'D': 1275 flags |= LONGINT; 1276 /*FALLTHROUGH*/ 1277 case 'd': 1278 case 'i': 1279 ADDSARG(); 1280 break; 1281#ifdef FLOATING_POINT 1282#ifdef HEXFLOAT 1283 case 'a': 1284 case 'A': 1285#endif 1286 case 'e': 1287 case 'E': 1288 case 'f': 1289 case 'g': 1290 case 'G': 1291 if (flags & LONGDBL) 1292 ADDTYPE(T_LONG_DOUBLE); 1293 else 1294 ADDTYPE(T_DOUBLE); 1295 break; 1296#endif /* FLOATING_POINT */ 1297 case 'n': 1298 if (flags & INTMAXT) 1299 ADDTYPE(TP_INTMAXT); 1300 else if (flags & PTRDIFFT) 1301 ADDTYPE(TP_PTRDIFFT); 1302 else if (flags & SIZET) 1303 ADDTYPE(TP_SIZET); 1304 else if (flags & LLONGINT) 1305 ADDTYPE(TP_LLONG); 1306 else if (flags & LONGINT) 1307 ADDTYPE(TP_LONG); 1308 else if (flags & SHORTINT) 1309 ADDTYPE(TP_SHORT); 1310 else if (flags & CHARINT) 1311 ADDTYPE(TP_SCHAR); 1312 else 1313 ADDTYPE(TP_INT); 1314 continue; /* no output */ 1315 case 'O': 1316 flags |= LONGINT; 1317 /*FALLTHROUGH*/ 1318 case 'o': 1319 ADDUARG(); 1320 break; 1321 case 'p': 1322 ADDTYPE(TP_VOID); 1323 break; 1324 case 'S': 1325 flags |= LONGINT; 1326 /*FALLTHROUGH*/ 1327 case 's': 1328 if (flags & LONGINT) 1329 ADDTYPE(TP_WCHAR); 1330 else 1331 ADDTYPE(TP_CHAR); 1332 break; 1333 case 'U': 1334 flags |= LONGINT; 1335 /*FALLTHROUGH*/ 1336 case 'u': 1337 case 'X': 1338 case 'x': 1339 ADDUARG(); 1340 break; 1341 default: /* "%?" prints ?, unless ? is NUL */ 1342 if (ch == '\0') 1343 goto done; 1344 break; 1345 } 1346 } 1347done: 1348 /* 1349 * Build the argument table. 1350 */ 1351 if (tablemax >= STATIC_ARG_TBL_SIZE) { 1352 *argtable = (union arg *) 1353 malloc (sizeof (union arg) * (tablemax + 1)); 1354 } 1355 1356 (*argtable) [0].intarg = 0; 1357 for (n = 1; n <= tablemax; n++) { 1358 switch (typetable [n]) { 1359 case T_UNUSED: /* whoops! */ 1360 (*argtable) [n].intarg = va_arg (ap, int); 1361 break; 1362 case TP_SCHAR: 1363 (*argtable) [n].pschararg = va_arg (ap, signed char *); 1364 break; 1365 case TP_SHORT: 1366 (*argtable) [n].pshortarg = va_arg (ap, short *); 1367 break; 1368 case T_INT: 1369 (*argtable) [n].intarg = va_arg (ap, int); 1370 break; 1371 case T_U_INT: 1372 (*argtable) [n].uintarg = va_arg (ap, unsigned int); 1373 break; 1374 case TP_INT: 1375 (*argtable) [n].pintarg = va_arg (ap, int *); 1376 break; 1377 case T_LONG: 1378 (*argtable) [n].longarg = va_arg (ap, long); 1379 break; 1380 case T_U_LONG: 1381 (*argtable) [n].ulongarg = va_arg (ap, unsigned long); 1382 break; 1383 case TP_LONG: 1384 (*argtable) [n].plongarg = va_arg (ap, long *); 1385 break; 1386 case T_LLONG: 1387 (*argtable) [n].longlongarg = va_arg (ap, long long); 1388 break; 1389 case T_U_LLONG: 1390 (*argtable) [n].ulonglongarg = va_arg (ap, unsigned long long); 1391 break; 1392 case TP_LLONG: 1393 (*argtable) [n].plonglongarg = va_arg (ap, long long *); 1394 break; 1395 case T_PTRDIFFT: 1396 (*argtable) [n].ptrdiffarg = va_arg (ap, ptrdiff_t); 1397 break; 1398 case TP_PTRDIFFT: 1399 (*argtable) [n].pptrdiffarg = va_arg (ap, ptrdiff_t *); 1400 break; 1401 case T_SIZET: 1402 (*argtable) [n].sizearg = va_arg (ap, size_t); 1403 break; 1404 case TP_SIZET: 1405 (*argtable) [n].psizearg = va_arg (ap, ssize_t *); 1406 break; 1407 case T_INTMAXT: 1408 (*argtable) [n].intmaxarg = va_arg (ap, intmax_t); 1409 break; 1410 case T_UINTMAXT: 1411 (*argtable) [n].uintmaxarg = va_arg (ap, uintmax_t); 1412 break; 1413 case TP_INTMAXT: 1414 (*argtable) [n].pintmaxarg = va_arg (ap, intmax_t *); 1415 break; 1416#ifdef FLOATING_POINT 1417 case T_DOUBLE: 1418 (*argtable) [n].doublearg = va_arg (ap, double); 1419 break; 1420 case T_LONG_DOUBLE: 1421 (*argtable) [n].longdoublearg = va_arg (ap, long double); 1422 break; 1423#endif 1424 case TP_CHAR: 1425 (*argtable) [n].pchararg = va_arg (ap, char *); 1426 break; 1427 case TP_VOID: 1428 (*argtable) [n].pvoidarg = va_arg (ap, void *); 1429 break; 1430 case T_WINT: 1431 (*argtable) [n].wintarg = va_arg (ap, wint_t); 1432 break; 1433 case TP_WCHAR: 1434 (*argtable) [n].pwchararg = va_arg (ap, wchar_t *); 1435 break; 1436 } 1437 } 1438 1439 if ((typetable != NULL) && (typetable != stattypetable)) 1440 free (typetable); 1441} 1442 1443/* 1444 * Increase the size of the type table. 1445 */ 1446static void 1447__grow_type_table (int nextarg, enum typeid **typetable, int *tablesize) 1448{ 1449 enum typeid *const oldtable = *typetable; 1450 const int oldsize = *tablesize; 1451 enum typeid *newtable; 1452 int newsize = oldsize * 2; 1453 1454 if (newsize < nextarg + 1) 1455 newsize = nextarg + 1; 1456 if (oldsize == STATIC_ARG_TBL_SIZE) { 1457 if ((newtable = malloc(newsize)) == NULL) 1458 abort(); /* XXX handle better */ 1459 bcopy(oldtable, newtable, oldsize); 1460 } else { 1461 if ((newtable = reallocf(oldtable, newsize)) == NULL) 1462 abort(); /* XXX handle better */ 1463 } 1464 memset(&newtable[oldsize], T_UNUSED, newsize - oldsize); 1465 1466 *typetable = newtable; 1467 *tablesize = newsize; 1468} 1469 1470 1471#ifdef FLOATING_POINT 1472 1473extern char *__dtoa(double, int, int, int *, int *, char **, char **); 1474 1475static wchar_t * 1476cvt(double value, int ndigits, int flags, char *sign, int *decpt, 1477 wchar_t ch, int *length, wchar_t **dtoaresultp) 1478{ 1479 int i, mode, dsgn; 1480 wchar_t *digits, *bp, *result, *rve; 1481 char *tresult, *trve; 1482 1483 if (ch == 'f') 1484 mode = 3; /* ndigits after the decimal point */ 1485 else { 1486 /* 1487 * To obtain ndigits after the decimal point for the 'e' 1488 * and 'E' formats, round to ndigits + 1 significant 1489 * figures. 1490 */ 1491 if (ch == 'e' || ch == 'E') 1492 ndigits++; 1493 mode = 2; /* ndigits significant digits */ 1494 } 1495 __dtoa(value, mode, ndigits, decpt, &dsgn, &trve, &tresult); 1496 if ((result = malloc((trve - tresult + 1) * sizeof(*result))) == NULL) 1497 abort(); /* XXX handle better */ 1498 for (i = 0; i < trve - tresult + 1; i++) 1499 result[i] = (wchar_t)(unsigned char)tresult[i]; 1500 rve = result + (trve - tresult); 1501 free(tresult); 1502 *dtoaresultp = result; 1503 digits = result; 1504 *sign = dsgn != 0; 1505 if ((ch != 'g' && ch != 'G') || flags & ALT) { 1506 /* print trailing zeros */ 1507 bp = digits + ndigits; 1508 if (ch == 'f') { 1509 if (*digits == '0' && value) 1510 *decpt = -ndigits + 1; 1511 bp += *decpt; 1512 } 1513 if (value == 0) /* kludge for __dtoa irregularity */ 1514 rve = bp; 1515 while (rve < bp) 1516 *rve++ = '0'; 1517 } 1518 *length = rve - digits; 1519 return (digits); 1520} 1521 1522static int 1523exponent(wchar_t *p0, int exp, wchar_t fmtch) 1524{ 1525 wchar_t *p, *t; 1526 wchar_t expbuf[MAXEXP]; 1527 1528 p = p0; 1529 *p++ = fmtch; 1530 if (exp < 0) { 1531 exp = -exp; 1532 *p++ = '-'; 1533 } 1534 else 1535 *p++ = '+'; 1536 t = expbuf + MAXEXP; 1537 if (exp > 9) { 1538 do { 1539 *--t = to_char(exp % 10); 1540 } while ((exp /= 10) > 9); 1541 *--t = to_char(exp); 1542 for (; t < expbuf + MAXEXP; *p++ = *t++); 1543 } 1544 else { 1545 *p++ = '0'; 1546 *p++ = to_char(exp); 1547 } 1548 return (p - p0); 1549} 1550#endif /* FLOATING_POINT */ 1551