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f73dda09 JA |
1 | /* |
2 | build a test version with | |
3 | gcc -g -DDRIVER -I../.. -I../../include -o test-snprintf snprintf.c fmtu*long.o | |
4 | */ | |
5 | ||
6 | /* | |
7 | Unix snprintf implementation. | |
8 | derived from inetutils/libinetutils/snprintf.c Version 1.1 | |
9 | ||
10 | Copyright (C) 2001 Free Software Foundation, Inc. | |
11 | ||
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | ||
26 | Revision History: | |
27 | ||
28 | 1.1: | |
29 | * added changes from Miles Bader | |
30 | * corrected a bug with %f | |
31 | * added support for %#g | |
32 | * added more comments :-) | |
33 | 1.0: | |
34 | * supporting must ANSI syntaxic_sugars | |
35 | 0.0: | |
36 | * support %s %c %d | |
37 | ||
38 | THANKS(for the patches and ideas): | |
39 | Miles Bader | |
40 | Cyrille Rustom | |
41 | Jacek Slabocewiz | |
42 | Mike Parker(mouse) | |
43 | ||
44 | */ | |
45 | ||
46 | /* | |
47 | * Currently doesn't handle (and bash/readline doesn't use): | |
b80f6443 JA |
48 | * * *M$ width, precision specifications |
49 | * * %N$ numbered argument conversions | |
50 | * * inf, nan floating values imperfect (if isinf(), isnan() not in libc) | |
51 | * * support for `F' is imperfect with ldfallback(), since underlying | |
52 | * printf may not handle it -- should ideally have another autoconf test | |
f73dda09 JA |
53 | */ |
54 | ||
55 | #define FLOATING_POINT | |
56 | ||
57 | #ifdef HAVE_CONFIG_H | |
58 | # include <config.h> | |
59 | #endif | |
60 | ||
61 | #if defined(DRIVER) && !defined(HAVE_CONFIG_H) | |
62 | #define HAVE_LONG_LONG | |
63 | #define HAVE_LONG_DOUBLE | |
64 | #ifdef __linux__ | |
65 | #define HAVE_PRINTF_A_FORMAT | |
66 | #endif | |
7117c2d2 | 67 | #define HAVE_ISINF_IN_LIBC |
f73dda09 JA |
68 | #define PREFER_STDARG |
69 | #define HAVE_STRINGIZE | |
70 | #define HAVE_LIMITS_H | |
71 | #define HAVE_STDDEF_H | |
7117c2d2 | 72 | #define HAVE_LOCALE_H |
f73dda09 JA |
73 | #define intmax_t long |
74 | #endif | |
75 | ||
76 | #if !defined (HAVE_SNPRINTF) || !defined (HAVE_ASPRINTF) | |
77 | ||
78 | #include <bashtypes.h> | |
79 | ||
80 | #if defined(PREFER_STDARG) | |
81 | # include <stdarg.h> | |
82 | #else | |
83 | # include <varargs.h> | |
84 | #endif | |
85 | ||
86 | #ifdef HAVE_LIMITS_H | |
87 | # include <limits.h> | |
88 | #endif | |
89 | #include <bashansi.h> | |
90 | #ifdef HAVE_STDDEF_H | |
91 | # include <stddef.h> | |
92 | #endif | |
93 | #include <chartypes.h> | |
94 | ||
95 | #ifdef HAVE_STDINT_H | |
96 | # include <stdint.h> | |
97 | #endif | |
98 | ||
99 | #ifdef FLOATING_POINT | |
7117c2d2 | 100 | # include <float.h> /* for manifest constants */ |
f73dda09 JA |
101 | # include <stdio.h> /* for sprintf */ |
102 | #endif | |
103 | ||
104 | #include <typemax.h> | |
105 | ||
7117c2d2 JA |
106 | #ifdef HAVE_LOCALE_H |
107 | # include <locale.h> | |
108 | #endif | |
109 | ||
f73dda09 | 110 | #include "stdc.h" |
7117c2d2 | 111 | #include <shmbutil.h> |
f73dda09 JA |
112 | |
113 | #ifndef DRIVER | |
114 | # include "shell.h" | |
115 | #else | |
116 | # define FL_PREFIX 0x01 /* add 0x, 0X, or 0 prefix as appropriate */ | |
117 | # define FL_ADDBASE 0x02 /* add base# prefix to converted value */ | |
118 | # define FL_HEXUPPER 0x04 /* use uppercase when converting to hex */ | |
119 | # define FL_UNSIGNED 0x08 /* don't add any sign */ | |
120 | extern char *fmtulong __P((unsigned long int, int, char *, size_t, int)); | |
121 | extern char *fmtullong __P((unsigned long long int, int, char *, size_t, int)); | |
122 | #endif | |
123 | ||
7117c2d2 JA |
124 | #ifndef FREE |
125 | # define FREE(x) if (x) free (x) | |
126 | #endif | |
127 | ||
f73dda09 JA |
128 | /* Bound on length of the string representing an integer value of type T. |
129 | Subtract one for the sign bit if T is signed; | |
130 | 302 / 1000 is log10 (2) rounded up; | |
131 | add one for integer division truncation; | |
132 | add one more for a minus sign if t is signed. */ | |
133 | #define INT_STRLEN_BOUND(t) \ | |
134 | ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 \ | |
135 | + 1 + TYPE_SIGNED (t)) | |
136 | ||
137 | /* conversion flags */ | |
138 | #define PF_ALTFORM 0x00001 /* # */ | |
139 | #define PF_HEXPREFIX 0x00002 /* 0[Xx] */ | |
140 | #define PF_LADJUST 0x00004 /* - */ | |
141 | #define PF_ZEROPAD 0x00008 /* 0 */ | |
142 | #define PF_PLUS 0x00010 /* + */ | |
143 | #define PF_SPACE 0x00020 /* ' ' */ | |
7117c2d2 | 144 | #define PF_THOUSANDS 0x00040 /* ' */ |
f73dda09 JA |
145 | |
146 | #define PF_DOT 0x00080 /* `.precision' */ | |
147 | #define PF_STAR_P 0x00100 /* `*' after precision */ | |
148 | #define PF_STAR_W 0x00200 /* `*' before or without precision */ | |
149 | ||
150 | /* length modifiers */ | |
151 | #define PF_SIGNEDCHAR 0x00400 /* hh */ | |
152 | #define PF_SHORTINT 0x00800 /* h */ | |
153 | #define PF_LONGINT 0x01000 /* l */ | |
154 | #define PF_LONGLONG 0x02000 /* ll */ | |
155 | #define PF_LONGDBL 0x04000 /* L */ | |
156 | #define PF_INTMAX_T 0x08000 /* j */ | |
157 | #define PF_SIZE_T 0x10000 /* z */ | |
158 | #define PF_PTRDIFF_T 0x20000 /* t */ | |
159 | ||
160 | #define PF_ALLOCBUF 0x40000 /* for asprintf, vasprintf */ | |
161 | ||
162 | #define PFM_SN 0x01 /* snprintf, vsnprintf */ | |
163 | #define PFM_AS 0x02 /* asprintf, vasprintf */ | |
164 | ||
165 | #define ASBUFSIZE 128 | |
166 | ||
167 | #define x_digs "0123456789abcdef" | |
168 | #define X_digs "0123456789ABCDEF" | |
169 | ||
170 | static char intbuf[INT_STRLEN_BOUND(unsigned long) + 1]; | |
171 | ||
7117c2d2 JA |
172 | static int decpoint; |
173 | static int thoussep; | |
174 | static char *grouping; | |
175 | ||
f73dda09 JA |
176 | /* |
177 | * For the FLOATING POINT FORMAT : | |
178 | * the challenge was finding a way to | |
179 | * manipulate the Real numbers without having | |
180 | * to resort to mathematical function(it | |
181 | * would require to link with -lm) and not | |
182 | * going down to the bit pattern(not portable) | |
183 | * | |
184 | * so a number, a real is: | |
185 | ||
186 | real = integral + fraction | |
187 | ||
188 | integral = ... + a(2)*10^2 + a(1)*10^1 + a(0)*10^0 | |
189 | fraction = b(1)*10^-1 + b(2)*10^-2 + ... | |
190 | ||
191 | where: | |
192 | 0 <= a(i) => 9 | |
193 | 0 <= b(i) => 9 | |
194 | ||
195 | from then it was simple math | |
196 | */ | |
197 | ||
198 | /* | |
199 | * size of the buffer for the integral part | |
200 | * and the fraction part | |
201 | */ | |
202 | #define MAX_INT 99 + 1 /* 1 for the null */ | |
203 | #define MAX_FRACT 307 + 1 | |
204 | ||
205 | /* | |
206 | * These functions use static buffers to store the results, | |
207 | * and so are not reentrant | |
208 | */ | |
209 | #define itoa(n) fmtulong(n, 10, intbuf, sizeof(intbuf), 0); | |
210 | #define dtoa(n, p, f) numtoa(n, 10, p, f) | |
211 | ||
212 | #define SWAP_INT(a,b) {int t; t = (a); (a) = (b); (b) = t;} | |
213 | ||
7117c2d2 JA |
214 | #define GETARG(type) (va_arg(args, type)) |
215 | ||
f73dda09 JA |
216 | /* Macros that do proper sign extension and handle length modifiers. Used |
217 | for the integer conversion specifiers. */ | |
218 | #define GETSIGNED(p) \ | |
219 | (((p)->flags & PF_LONGINT) \ | |
7117c2d2 JA |
220 | ? GETARG (long) \ |
221 | : (((p)->flags & PF_SHORTINT) ? (long)(short)GETARG (int) \ | |
222 | : (long)GETARG (int))) | |
f73dda09 JA |
223 | |
224 | #define GETUNSIGNED(p) \ | |
225 | (((p)->flags & PF_LONGINT) \ | |
7117c2d2 JA |
226 | ? GETARG (unsigned long) \ |
227 | : (((p)->flags & PF_SHORTINT) ? (unsigned long)(unsigned short)GETARG (int) \ | |
228 | : (unsigned long)GETARG (unsigned int))) | |
f73dda09 JA |
229 | |
230 | ||
231 | #ifdef HAVE_LONG_DOUBLE | |
7117c2d2 | 232 | #define GETLDOUBLE(p) GETARG (long double) |
f73dda09 | 233 | #endif |
7117c2d2 | 234 | #define GETDOUBLE(p) GETARG (double) |
f73dda09 JA |
235 | |
236 | #define SET_SIZE_FLAGS(p, type) \ | |
237 | if (sizeof (type) > sizeof (int)) \ | |
238 | (p)->flags |= PF_LONGINT; \ | |
239 | if (sizeof (type) > sizeof (long)) \ | |
240 | (p)->flags |= PF_LONGLONG; | |
241 | ||
242 | /* this struct holds everything we need */ | |
243 | struct DATA | |
244 | { | |
245 | int length; | |
246 | char *base; /* needed for [v]asprintf */ | |
247 | char *holder; | |
248 | int counter; | |
249 | const char *pf; | |
250 | ||
251 | /* FLAGS */ | |
252 | int flags; | |
253 | int justify; | |
254 | int width, precision; | |
255 | char pad; | |
256 | }; | |
257 | ||
258 | /* the floating point stuff */ | |
259 | #ifdef FLOATING_POINT | |
260 | static double pow_10 __P((int)); | |
261 | static int log_10 __P((double)); | |
262 | static double integral __P((double, double *)); | |
263 | static char *numtoa __P((double, int, int, char **)); | |
264 | #endif | |
265 | ||
266 | static void init_data __P((struct DATA *, char *, size_t, const char *, int)); | |
267 | static void init_conv_flag __P((struct DATA *)); | |
268 | ||
269 | /* for the format */ | |
270 | #ifdef FLOATING_POINT | |
271 | static void floating __P((struct DATA *, double)); | |
272 | static void exponent __P((struct DATA *, double)); | |
273 | #endif | |
274 | static void number __P((struct DATA *, unsigned long, int)); | |
275 | #ifdef HAVE_LONG_LONG | |
276 | static void lnumber __P((struct DATA *, unsigned long long, int)); | |
277 | #endif | |
278 | static void pointer __P((struct DATA *, unsigned long)); | |
279 | static void strings __P((struct DATA *, char *)); | |
280 | ||
281 | #ifdef FLOATING_POINT | |
282 | # define FALLBACK_FMTSIZE 32 | |
283 | # define FALLBACK_BASE 4096 | |
284 | # define LFALLBACK_BASE 5120 | |
285 | # ifdef HAVE_LONG_DOUBLE | |
286 | static void ldfallback __P((struct DATA *, const char *, const char *, long double)); | |
287 | # endif | |
288 | static void dfallback __P((struct DATA *, const char *, const char *, double)); | |
289 | #endif | |
290 | ||
7117c2d2 JA |
291 | static char *groupnum __P((char *)); |
292 | ||
f73dda09 JA |
293 | #ifdef DRIVER |
294 | static void memory_error_and_abort (); | |
295 | static void *xmalloc __P((size_t)); | |
296 | static void *xrealloc __P((void *, size_t)); | |
297 | static void xfree __P((void *)); | |
298 | #else | |
299 | # include <xmalloc.h> | |
300 | #endif | |
301 | ||
302 | /* those are defines specific to snprintf to hopefully | |
303 | * make the code clearer :-) | |
304 | */ | |
305 | #define RIGHT 1 | |
306 | #define LEFT 0 | |
307 | #define NOT_FOUND -1 | |
308 | #define FOUND 1 | |
309 | #define MAX_FIELD 15 | |
310 | ||
311 | /* round off to the precision */ | |
312 | #define ROUND(d, p) \ | |
313 | (d < 0.) ? \ | |
314 | d - pow_10(-(p)->precision) * 0.5 : \ | |
315 | d + pow_10(-(p)->precision) * 0.5 | |
316 | ||
317 | /* set default precision */ | |
318 | #define DEF_PREC(p) \ | |
319 | if ((p)->precision == NOT_FOUND) \ | |
320 | (p)->precision = 6 | |
321 | ||
322 | /* put a char. increment the number of chars written even if we've exceeded | |
323 | the vsnprintf/snprintf buffer size (for the return value) */ | |
324 | #define PUT_CHAR(c, p) \ | |
325 | do \ | |
326 | { \ | |
327 | if (((p)->flags & PF_ALLOCBUF) && ((p)->counter >= (p)->length - 1)) \ | |
328 | { \ | |
329 | (p)->length += ASBUFSIZE; \ | |
330 | (p)->base = (char *)xrealloc((p)->base, (p)->length); \ | |
331 | (p)->holder = (p)->base + (p)->counter; /* in case reallocated */ \ | |
332 | } \ | |
333 | if ((p)->counter < (p)->length) \ | |
334 | *(p)->holder++ = (c); \ | |
335 | (p)->counter++; \ | |
336 | } \ | |
337 | while (0) | |
338 | ||
7117c2d2 JA |
339 | /* Output a string. P->WIDTH has already been adjusted for padding. */ |
340 | #define PUT_STRING(string, len, p) \ | |
341 | do \ | |
342 | { \ | |
343 | PAD_RIGHT (p); \ | |
344 | while ((len)-- > 0) \ | |
345 | { \ | |
346 | PUT_CHAR (*(string), (p)); \ | |
347 | (string)++; \ | |
348 | } \ | |
349 | PAD_LEFT (p); \ | |
350 | } \ | |
351 | while (0) | |
352 | ||
f73dda09 JA |
353 | #define PUT_PLUS(d, p, zero) \ |
354 | if ((d) > zero && (p)->justify == RIGHT) \ | |
355 | PUT_CHAR('+', p) | |
356 | ||
357 | #define PUT_SPACE(d, p, zero) \ | |
358 | if (((p)->flags & PF_SPACE) && (d) > zero) \ | |
359 | PUT_CHAR(' ', p) | |
360 | ||
361 | /* pad right */ | |
362 | #define PAD_RIGHT(p) \ | |
363 | if ((p)->width > 0 && (p)->justify != LEFT) \ | |
364 | for (; (p)->width > 0; (p)->width--) \ | |
365 | PUT_CHAR((p)->pad, p) | |
366 | ||
367 | /* pad left */ | |
368 | #define PAD_LEFT(p) \ | |
369 | if ((p)->width > 0 && (p)->justify == LEFT) \ | |
370 | for (; (p)->width > 0; (p)->width--) \ | |
371 | PUT_CHAR((p)->pad, p) | |
372 | ||
373 | /* if width and prec. in the args */ | |
374 | #define STAR_ARGS(p) \ | |
375 | if ((p)->flags & PF_STAR_W) \ | |
7117c2d2 | 376 | (p)->width = GETARG (int); \ |
f73dda09 | 377 | if ((p)->flags & PF_STAR_P) \ |
7117c2d2 JA |
378 | (p)->precision = GETARG (int) |
379 | ||
380 | #if defined (HAVE_LOCALE_H) | |
381 | # define GETLOCALEDATA(d, t, g) \ | |
382 | do \ | |
383 | { \ | |
384 | struct lconv *lv; \ | |
385 | if ((d) == 0) { \ | |
386 | (d) = '.'; (t) = -1; (g) = 0; /* defaults */ \ | |
387 | lv = localeconv(); \ | |
388 | if (lv) \ | |
389 | { \ | |
390 | if (lv->decimal_point && lv->decimal_point[0]) \ | |
391 | (d) = lv->decimal_point[0]; \ | |
392 | if (lv->thousands_sep && lv->thousands_sep[0]) \ | |
393 | (t) = lv->thousands_sep[0]; \ | |
394 | (g) = lv->grouping ? lv->grouping : ""; \ | |
395 | if (*(g) == '\0' || *(g) == CHAR_MAX || (t) == -1) (g) = 0; \ | |
396 | } \ | |
397 | } \ | |
398 | } \ | |
399 | while (0); | |
400 | #else | |
401 | # define GETLOCALEDATA(d, t, g) \ | |
402 | ( (d) = '.', (t) = ',', g = "\003" ) | |
403 | #endif | |
f73dda09 JA |
404 | |
405 | #ifdef FLOATING_POINT | |
406 | /* | |
407 | * Find the nth power of 10 | |
408 | */ | |
409 | static double | |
410 | pow_10(n) | |
411 | int n; | |
412 | { | |
413 | double P; | |
414 | ||
415 | /* handle common cases with fast switch statement. */ | |
416 | switch (n) | |
417 | { | |
418 | case -3: return .001; | |
419 | case -2: return .01; | |
420 | case -1: return .1; | |
421 | case 0: return 1.; | |
422 | case 1: return 10.; | |
423 | case 2: return 100.; | |
424 | case 3: return 1000.; | |
425 | } | |
426 | ||
427 | if (n < 0) | |
428 | { | |
429 | P = .0001; | |
430 | for (n += 4; n < 0; n++) | |
431 | P /= 10.; | |
432 | } | |
433 | else | |
434 | { | |
435 | P = 10000.; | |
436 | for (n -= 4; n > 0; n--) | |
437 | P *= 10.; | |
438 | } | |
439 | ||
440 | return P; | |
441 | } | |
442 | ||
443 | /* | |
444 | * Find the integral part of the log in base 10 | |
445 | * Note: this not a real log10() | |
446 | I just need and approximation(integerpart) of x in: | |
447 | 10^x ~= r | |
448 | * log_10(200) = 2; | |
449 | * log_10(250) = 2; | |
450 | */ | |
451 | static int | |
452 | log_10(r) | |
453 | double r; | |
454 | { | |
455 | int i = 0; | |
456 | double result = 1.; | |
457 | ||
458 | if (r < 0.) | |
459 | r = -r; | |
460 | ||
461 | if (r < 1.) | |
462 | { | |
463 | while (result >= r) | |
464 | { | |
465 | result /= 10.; | |
466 | i++; | |
467 | } | |
468 | return (-i); | |
469 | } | |
470 | else | |
471 | { | |
472 | while (result <= r) | |
473 | { | |
474 | result *= 10.; | |
475 | i++; | |
476 | } | |
477 | return (i - 1); | |
478 | } | |
479 | } | |
480 | ||
481 | /* | |
482 | * This function return the fraction part of a double | |
483 | * and set in ip the integral part. | |
484 | * In many ways it resemble the modf() found on most Un*x | |
485 | */ | |
486 | static double | |
487 | integral(real, ip) | |
488 | double real; | |
489 | double *ip; | |
490 | { | |
491 | int j; | |
492 | double i, s, p; | |
493 | double real_integral = 0.; | |
494 | ||
495 | /* take care of the obvious */ | |
496 | /* equal to zero ? */ | |
497 | if (real == 0.) | |
498 | { | |
499 | *ip = 0.; | |
500 | return (0.); | |
501 | } | |
502 | ||
503 | /* negative number ? */ | |
504 | if (real < 0.) | |
505 | real = -real; | |
506 | ||
507 | /* a fraction ? */ | |
508 | if ( real < 1.) | |
509 | { | |
510 | *ip = 0.; | |
511 | return real; | |
512 | } | |
513 | ||
514 | /* the real work :-) */ | |
515 | for (j = log_10(real); j >= 0; j--) | |
516 | { | |
517 | p = pow_10(j); | |
518 | s = (real - real_integral)/p; | |
519 | i = 0.; | |
520 | while (i + 1. <= s) | |
521 | i++; | |
522 | real_integral += i*p; | |
523 | } | |
524 | *ip = real_integral; | |
525 | return (real - real_integral); | |
526 | } | |
527 | ||
528 | #define PRECISION 1.e-6 | |
529 | /* | |
530 | * return an ascii representation of the integral part of the number | |
531 | * and set fract to be an ascii representation of the fraction part | |
532 | * the container for the fraction and the integral part or staticly | |
533 | * declare with fix size | |
534 | */ | |
535 | static char * | |
536 | numtoa(number, base, precision, fract) | |
537 | double number; | |
538 | int base, precision; | |
539 | char **fract; | |
540 | { | |
541 | register int i, j; | |
542 | double ip, fp; /* integer and fraction part */ | |
543 | double fraction; | |
544 | int digits = MAX_INT - 1; | |
545 | static char integral_part[MAX_INT]; | |
546 | static char fraction_part[MAX_FRACT]; | |
547 | double sign; | |
548 | int ch; | |
549 | ||
550 | /* taking care of the obvious case: 0.0 */ | |
551 | if (number == 0.) | |
552 | { | |
553 | integral_part[0] = '0'; | |
554 | integral_part[1] = '\0'; | |
555 | fraction_part[0] = '0'; | |
556 | fraction_part[1] = '\0'; | |
7117c2d2 JA |
557 | if (fract) |
558 | *fract = fraction_part; | |
f73dda09 JA |
559 | return integral_part; |
560 | } | |
561 | ||
562 | /* for negative numbers */ | |
563 | if ((sign = number) < 0.) | |
564 | { | |
565 | number = -number; | |
566 | digits--; /* sign consume one digit */ | |
567 | } | |
568 | ||
569 | fraction = integral(number, &ip); | |
570 | number = ip; | |
571 | ||
572 | /* do the integral part */ | |
573 | if (ip == 0.) | |
574 | { | |
575 | integral_part[0] = '0'; | |
576 | i = 1; | |
577 | } | |
578 | else | |
579 | { | |
580 | for ( i = 0; i < digits && number != 0.; ++i) | |
581 | { | |
582 | number /= base; | |
583 | fp = integral(number, &ip); | |
584 | ch = (int)((fp + PRECISION)*base); /* force to round */ | |
585 | integral_part[i] = (ch <= 9) ? ch + '0' : ch + 'a' - 10; | |
586 | if (! ISXDIGIT((unsigned char)integral_part[i])) | |
587 | break; /* bail out overflow !! */ | |
588 | number = ip; | |
589 | } | |
590 | } | |
591 | ||
592 | /* Oh No !! out of bound, ho well fill it up ! */ | |
593 | if (number != 0.) | |
594 | for (i = 0; i < digits; ++i) | |
595 | integral_part[i] = '9'; | |
596 | ||
597 | /* put the sign ? */ | |
598 | if (sign < 0.) | |
599 | integral_part[i++] = '-'; | |
600 | ||
601 | integral_part[i] = '\0'; | |
602 | ||
603 | /* reverse every thing */ | |
604 | for ( i--, j = 0; j < i; j++, i--) | |
605 | SWAP_INT(integral_part[i], integral_part[j]); | |
606 | ||
607 | /* the fractional part */ | |
608 | for (i=0, fp=fraction; precision > 0 && i < MAX_FRACT ; i++, precision--) | |
609 | { | |
610 | fraction_part[i] = (int)((fp + PRECISION)*10. + '0'); | |
611 | if (! DIGIT(fraction_part[i])) /* underflow ? */ | |
612 | break; | |
613 | fp = (fp*10.0) - (double)(long)((fp + PRECISION)*10.); | |
614 | } | |
615 | fraction_part[i] = '\0'; | |
616 | ||
617 | if (fract != (char **)0) | |
618 | *fract = fraction_part; | |
619 | ||
620 | return integral_part; | |
621 | } | |
622 | #endif | |
623 | ||
624 | /* for %d and friends, it puts in holder | |
625 | * the representation with the right padding | |
626 | */ | |
627 | static void | |
628 | number(p, d, base) | |
629 | struct DATA *p; | |
630 | unsigned long d; | |
631 | int base; | |
632 | { | |
7117c2d2 | 633 | char *tmp, *t; |
f73dda09 JA |
634 | long sd; |
635 | int flags; | |
636 | ||
637 | sd = d; /* signed for ' ' padding in base 10 */ | |
638 | flags = (*p->pf == 'u' || *p->pf == 'U') ? FL_UNSIGNED : 0; | |
639 | if (*p->pf == 'X') | |
640 | flags |= FL_HEXUPPER; | |
641 | ||
642 | tmp = fmtulong (d, base, intbuf, sizeof(intbuf), flags); | |
7117c2d2 JA |
643 | t = 0; |
644 | if ((p->flags & PF_THOUSANDS)) | |
645 | { | |
646 | GETLOCALEDATA(decpoint, thoussep, grouping); | |
647 | if (grouping && (t = groupnum (tmp))) | |
648 | tmp = t; | |
649 | } | |
650 | ||
f73dda09 JA |
651 | p->width -= strlen(tmp); |
652 | PAD_RIGHT(p); | |
653 | ||
654 | switch (base) | |
655 | { | |
656 | case 10: | |
657 | PUT_PLUS(sd, p, 0); | |
658 | PUT_SPACE(sd, p, 0); | |
659 | break; | |
660 | case 8: | |
661 | if (p->flags & PF_ALTFORM) | |
662 | PUT_CHAR('0', p); | |
663 | break; | |
664 | case 16: | |
665 | if (p->flags & PF_ALTFORM) | |
666 | { | |
667 | PUT_CHAR('0', p); | |
668 | PUT_CHAR(*p->pf, p); | |
669 | } | |
670 | break; | |
671 | } | |
672 | ||
673 | while (*tmp) | |
674 | { | |
675 | PUT_CHAR(*tmp, p); | |
676 | tmp++; | |
677 | } | |
678 | ||
679 | PAD_LEFT(p); | |
7117c2d2 | 680 | FREE (t); |
f73dda09 JA |
681 | } |
682 | ||
683 | #ifdef HAVE_LONG_LONG | |
684 | /* | |
685 | * identical to number() but works for `long long' | |
686 | */ | |
687 | static void | |
688 | lnumber(p, d, base) | |
689 | struct DATA *p; | |
690 | unsigned long long d; | |
691 | int base; | |
692 | { | |
7117c2d2 | 693 | char *tmp, *t; |
f73dda09 JA |
694 | long long sd; |
695 | int flags; | |
696 | ||
697 | sd = d; /* signed for ' ' padding in base 10 */ | |
698 | flags = (*p->pf == 'u' || *p->pf == 'U') ? FL_UNSIGNED : 0; | |
699 | if (*p->pf == 'X') | |
700 | flags |= FL_HEXUPPER; | |
701 | ||
702 | tmp = fmtullong (d, base, intbuf, sizeof(intbuf), flags); | |
7117c2d2 JA |
703 | t = 0; |
704 | if ((p->flags & PF_THOUSANDS)) | |
705 | { | |
706 | GETLOCALEDATA(decpoint, thoussep, grouping); | |
707 | if (grouping && (t = groupnum (tmp))) | |
708 | tmp = t; | |
709 | } | |
710 | ||
f73dda09 JA |
711 | p->width -= strlen(tmp); |
712 | PAD_RIGHT(p); | |
713 | ||
714 | switch (base) | |
715 | { | |
716 | case 10: | |
717 | PUT_PLUS(sd, p, 0); | |
718 | PUT_SPACE(sd, p, 0); | |
719 | break; | |
720 | case 8: | |
721 | if (p->flags & PF_ALTFORM) | |
722 | PUT_CHAR('0', p); | |
723 | break; | |
724 | case 16: | |
725 | if (p->flags & PF_ALTFORM) | |
726 | { | |
727 | PUT_CHAR('0', p); | |
728 | PUT_CHAR(*p->pf, p); | |
729 | } | |
730 | break; | |
731 | } | |
732 | ||
733 | while (*tmp) | |
734 | { | |
735 | PUT_CHAR(*tmp, p); | |
736 | tmp++; | |
737 | } | |
738 | ||
739 | PAD_LEFT(p); | |
7117c2d2 | 740 | FREE (t); |
f73dda09 JA |
741 | } |
742 | #endif | |
743 | ||
744 | static void | |
745 | pointer(p, d) | |
746 | struct DATA *p; | |
747 | unsigned long d; | |
748 | { | |
749 | char *tmp; | |
750 | ||
751 | tmp = fmtulong(d, 16, intbuf, sizeof(intbuf), 0); | |
752 | p->width -= strlen(tmp); | |
753 | PAD_RIGHT(p); | |
754 | ||
755 | /* prefix '0x' for pointers */ | |
756 | PUT_CHAR('0', p); | |
757 | PUT_CHAR('x', p); | |
758 | ||
759 | while (*tmp) | |
760 | { | |
761 | PUT_CHAR(*tmp, p); | |
762 | tmp++; | |
763 | } | |
764 | PAD_LEFT(p); | |
765 | } | |
766 | ||
767 | /* %s strings */ | |
768 | static void | |
769 | strings(p, tmp) | |
770 | struct DATA *p; | |
771 | char *tmp; | |
772 | { | |
7117c2d2 | 773 | size_t len; |
f73dda09 | 774 | |
7117c2d2 | 775 | len = strlen(tmp); |
f73dda09 | 776 | if (p->precision != NOT_FOUND) /* the smallest number */ |
7117c2d2 JA |
777 | len = (len < p->precision ? len : p->precision); |
778 | p->width -= len; | |
779 | ||
780 | PUT_STRING (tmp, len, p); | |
781 | } | |
782 | ||
783 | #if HANDLE_MULTIBYTE | |
784 | /* %ls wide-character strings */ | |
785 | static void | |
786 | wstrings(p, tmp) | |
787 | struct DATA *p; | |
788 | wchar_t *tmp; | |
789 | { | |
790 | size_t len; | |
791 | mbstate_t mbs; | |
792 | char *os; | |
793 | const wchar_t *ws; | |
794 | ||
795 | memset (&mbs, '\0', sizeof (mbstate_t)); | |
796 | ws = (const wchar_t *)tmp; | |
797 | ||
798 | os = (char *)NULL; | |
799 | if (p->precision != NOT_FOUND) | |
800 | { | |
801 | os = (char *)xmalloc (p->precision + 1); | |
802 | len = wcsrtombs (os, &ws, p->precision, &mbs); | |
f73dda09 | 803 | } |
7117c2d2 JA |
804 | else |
805 | { | |
806 | len = wcsrtombs (NULL, &ws, 0, &mbs); | |
807 | if (len != (size_t)-1) | |
808 | { | |
809 | memset (&mbs, '\0', sizeof (mbstate_t)); | |
810 | os = (char *)xmalloc (len + 1); | |
811 | (void)wcsrtombs (os, &ws, len + 1, &mbs); | |
812 | } | |
813 | } | |
814 | if (len == (size_t)-1) | |
815 | { | |
816 | /* invalid multibyte sequence; bail now. */ | |
817 | FREE (os); | |
818 | return; | |
819 | } | |
820 | ||
821 | p->width -= len; | |
822 | PUT_STRING (os, len, p); | |
823 | free (os); | |
f73dda09 JA |
824 | } |
825 | ||
7117c2d2 JA |
826 | static void |
827 | wchars (p, wc) | |
828 | struct DATA *p; | |
829 | wint_t wc; | |
830 | { | |
831 | char *lbuf, *l; | |
832 | mbstate_t mbs; | |
833 | size_t len; | |
834 | ||
835 | lbuf = (char *)malloc (MB_CUR_MAX+1); | |
836 | if (lbuf == 0) | |
837 | return; | |
838 | memset (&mbs, '\0', sizeof (mbstate_t)); | |
839 | len = wcrtomb (lbuf, wc, &mbs); | |
840 | if (len == (size_t)-1) | |
841 | /* conversion failed; bail now. */ | |
842 | return; | |
843 | p->width -= len; | |
844 | l = lbuf; | |
845 | PUT_STRING (l, len, p); | |
846 | free (lbuf); | |
847 | } | |
848 | #endif /* HANDLE_MULTIBYTE */ | |
849 | ||
f73dda09 | 850 | #ifdef FLOATING_POINT |
7117c2d2 JA |
851 | |
852 | #ifndef HAVE_ISINF_IN_LIBC | |
853 | /* Half-assed versions, since we don't want to link with libm. */ | |
854 | static int | |
855 | isinf(d) | |
856 | double d; | |
857 | { | |
858 | #ifdef DBL_MAX | |
859 | if (d < DBL_MIN) | |
860 | return -1; | |
861 | else if (d > DBL_MAX) | |
862 | return 1; | |
863 | else | |
864 | #endif | |
865 | return 0; | |
866 | } | |
867 | ||
868 | static int | |
869 | isnan(d) | |
870 | double d; | |
871 | { | |
872 | return 0; | |
873 | } | |
874 | #endif | |
875 | ||
876 | /* Check for [+-]infinity and NaN. If MODE == 1, we check for Infinity, else | |
877 | (mode == 2) we check for NaN. This does the necessary printing. Returns | |
878 | 1 if Inf or Nan, 0 if not. */ | |
879 | static int | |
880 | chkinfnan(p, d, mode) | |
881 | struct DATA *p; | |
882 | double d; | |
883 | int mode; /* == 1 for inf, == 2 for nan */ | |
884 | { | |
885 | int i; | |
886 | char *tmp; | |
887 | char *big, *small; | |
888 | ||
889 | i = (mode == 1) ? isinf(d) : isnan(d); | |
890 | if (i == 0) | |
891 | return 0; | |
892 | big = (mode == 1) ? "INF" : "NAN"; | |
893 | small = (mode == 1) ? "inf" : "nan"; | |
894 | ||
895 | tmp = (*p->pf == 'F' || *p->pf == 'G' || *p->pf == 'E') ? big : small; | |
896 | ||
897 | if (i < 0) | |
898 | PUT_CHAR('-', p); | |
899 | ||
900 | while (*tmp) | |
901 | { | |
902 | PUT_CHAR (*tmp, p); | |
903 | tmp++; | |
904 | } | |
905 | ||
906 | return 1; | |
907 | } | |
908 | ||
f73dda09 JA |
909 | /* %f %F %g %G floating point representation */ |
910 | static void | |
911 | floating(p, d) | |
912 | struct DATA *p; | |
913 | double d; | |
914 | { | |
7117c2d2 | 915 | char *tmp, *tmp2, *t; |
f73dda09 JA |
916 | int i; |
917 | ||
7117c2d2 JA |
918 | if (chkinfnan(p, d, 1) || chkinfnan(p, d, 2)) |
919 | return; /* already printed nan or inf */ | |
920 | ||
921 | GETLOCALEDATA(decpoint, thoussep, grouping); | |
f73dda09 JA |
922 | DEF_PREC(p); |
923 | d = ROUND(d, p); | |
924 | tmp = dtoa(d, p->precision, &tmp2); | |
7117c2d2 JA |
925 | t = 0; |
926 | if ((p->flags & PF_THOUSANDS) && grouping && (t = groupnum (tmp))) | |
927 | tmp = t; | |
928 | ||
f73dda09 JA |
929 | /* calculate the padding. 1 for the dot */ |
930 | p->width = p->width - | |
931 | ((d > 0. && p->justify == RIGHT) ? 1:0) - | |
932 | ((p->flags & PF_SPACE) ? 1:0) - | |
933 | strlen(tmp) - p->precision - 1; | |
934 | PAD_RIGHT(p); | |
935 | PUT_PLUS(d, p, 0.); | |
936 | PUT_SPACE(d, p, 0.); | |
7117c2d2 | 937 | |
f73dda09 JA |
938 | while (*tmp) |
939 | { /* the integral */ | |
940 | PUT_CHAR(*tmp, p); | |
941 | tmp++; | |
942 | } | |
7117c2d2 JA |
943 | FREE (t); |
944 | ||
f73dda09 | 945 | if (p->precision != 0 || (p->flags & PF_ALTFORM)) |
7117c2d2 JA |
946 | PUT_CHAR(decpoint, p); /* put the '.' */ |
947 | ||
f73dda09 JA |
948 | if ((*p->pf == 'g' || *p->pf == 'G') && (p->flags & PF_ALTFORM) == 0) |
949 | /* smash the trailing zeros unless altform */ | |
950 | for (i = strlen(tmp2) - 1; i >= 0 && tmp2[i] == '0'; i--) | |
7117c2d2 JA |
951 | tmp2[i] = '\0'; |
952 | ||
f73dda09 JA |
953 | for (; *tmp2; tmp2++) |
954 | PUT_CHAR(*tmp2, p); /* the fraction */ | |
955 | ||
956 | PAD_LEFT(p); | |
957 | } | |
958 | ||
959 | /* %e %E %g %G exponent representation */ | |
960 | static void | |
961 | exponent(p, d) | |
962 | struct DATA *p; | |
963 | double d; | |
964 | { | |
965 | char *tmp, *tmp2; | |
7117c2d2 | 966 | int j, i; |
f73dda09 | 967 | |
7117c2d2 JA |
968 | if (chkinfnan(p, d, 1) || chkinfnan(p, d, 2)) |
969 | return; /* already printed nan or inf */ | |
970 | ||
971 | GETLOCALEDATA(decpoint, thoussep, grouping); | |
f73dda09 JA |
972 | DEF_PREC(p); |
973 | j = log_10(d); | |
974 | d = d / pow_10(j); /* get the Mantissa */ | |
975 | d = ROUND(d, p); | |
976 | tmp = dtoa(d, p->precision, &tmp2); | |
7117c2d2 | 977 | |
f73dda09 JA |
978 | /* 1 for unit, 1 for the '.', 1 for 'e|E', |
979 | * 1 for '+|-', 2 for 'exp' */ | |
980 | /* calculate how much padding need */ | |
981 | p->width = p->width - | |
982 | ((d > 0. && p->justify == RIGHT) ? 1:0) - | |
983 | ((p->flags & PF_SPACE) ? 1:0) - p->precision - 6; | |
7117c2d2 | 984 | |
f73dda09 JA |
985 | PAD_RIGHT(p); |
986 | PUT_PLUS(d, p, 0.); | |
987 | PUT_SPACE(d, p, 0.); | |
f73dda09 JA |
988 | |
989 | while (*tmp) | |
990 | { | |
991 | PUT_CHAR(*tmp, p); | |
992 | tmp++; | |
f73dda09 JA |
993 | } |
994 | ||
7117c2d2 JA |
995 | if (p->precision != 0 || (p->flags & PF_ALTFORM)) |
996 | PUT_CHAR(decpoint, p); /* the '.' */ | |
997 | ||
f73dda09 JA |
998 | if ((*p->pf == 'g' || *p->pf == 'G') && (p->flags & PF_ALTFORM) == 0) |
999 | /* smash the trailing zeros unless altform */ | |
1000 | for (i = strlen(tmp2) - 1; i >= 0 && tmp2[i] == '0'; i--) | |
7117c2d2 JA |
1001 | tmp2[i] = '\0'; |
1002 | ||
f73dda09 | 1003 | for (; *tmp2; tmp2++) |
7117c2d2 | 1004 | PUT_CHAR(*tmp2, p); /* the fraction */ |
f73dda09 JA |
1005 | |
1006 | /* the exponent put the 'e|E' */ | |
1007 | if (*p->pf == 'g' || *p->pf == 'e') | |
7117c2d2 | 1008 | PUT_CHAR('e', p); |
f73dda09 | 1009 | else |
7117c2d2 | 1010 | PUT_CHAR('E', p); |
f73dda09 JA |
1011 | |
1012 | /* the sign of the exp */ | |
1013 | if (j > 0) | |
7117c2d2 | 1014 | PUT_CHAR('+', p); |
f73dda09 JA |
1015 | else |
1016 | { | |
1017 | PUT_CHAR('-', p); | |
1018 | j = -j; | |
1019 | } | |
1020 | ||
1021 | tmp = itoa(j); | |
1022 | /* pad out to at least two spaces. pad with `0' if the exponent is a | |
1023 | single digit. */ | |
1024 | if (j <= 9) | |
7117c2d2 | 1025 | PUT_CHAR('0', p); |
f73dda09 JA |
1026 | |
1027 | /* the exponent */ | |
1028 | while (*tmp) | |
1029 | { | |
1030 | PUT_CHAR(*tmp, p); | |
1031 | tmp++; | |
1032 | } | |
1033 | PAD_LEFT(p); | |
1034 | } | |
1035 | #endif | |
1036 | ||
7117c2d2 JA |
1037 | /* Return a new string with the digits in S grouped according to the locale's |
1038 | grouping info and thousands separator. If no grouping should be performed, | |
1039 | this returns NULL; the caller needs to check for it. */ | |
1040 | static char * | |
1041 | groupnum (s) | |
1042 | char *s; | |
1043 | { | |
1044 | char *se, *ret, *re, *g; | |
1045 | int len, slen; | |
1046 | ||
1047 | if (grouping == 0 || *grouping <= 0 || *grouping == CHAR_MAX) | |
1048 | return ((char *)NULL); | |
1049 | ||
1050 | /* find min grouping to size returned string */ | |
1051 | for (len = *grouping, g = grouping; *g; g++) | |
1052 | if (*g > 0 && *g < len) | |
1053 | len = *g; | |
1054 | ||
1055 | slen = strlen (s); | |
1056 | len = slen / len + 1; | |
1057 | ret = (char *)xmalloc (slen + len + 1); | |
1058 | re = ret + slen + len; | |
1059 | *re = '\0'; | |
1060 | ||
1061 | g = grouping; | |
1062 | se = s + slen; | |
1063 | len = *g; | |
1064 | ||
1065 | while (se > s) | |
1066 | { | |
1067 | *--re = *--se; | |
1068 | ||
1069 | /* handle `-' inserted by numtoa() and the fmtu* family here. */ | |
1070 | if (se > s && se[-1] == '-') | |
1071 | continue; | |
1072 | ||
1073 | /* begin new group. */ | |
1074 | if (--len == 0 && se > s) | |
1075 | { | |
1076 | *--re = thoussep; | |
1077 | len = *++g; /* was g++, but that uses first char twice (glibc bug, too) */ | |
1078 | if (*g == '\0') | |
1079 | len = *--g; /* use previous grouping */ | |
1080 | else if (*g == CHAR_MAX) | |
1081 | { | |
1082 | do | |
1083 | *--re = *--se; | |
1084 | while (se > s); | |
1085 | break; | |
1086 | } | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | if (re > ret) | |
1091 | #ifdef HAVE_MEMMOVE | |
1092 | memmove (ret, re, strlen (re) + 1); | |
1093 | #else | |
1094 | strcpy (ret, re); | |
1095 | #endif | |
1096 | ||
1097 | return ret; | |
1098 | } | |
1099 | ||
f73dda09 JA |
1100 | /* initialize the conversion specifiers */ |
1101 | static void | |
1102 | init_conv_flag (p) | |
1103 | struct DATA *p; | |
1104 | { | |
1105 | p->flags &= PF_ALLOCBUF; /* preserve PF_ALLOCBUF flag */ | |
1106 | p->precision = p->width = NOT_FOUND; | |
1107 | p->justify = NOT_FOUND; | |
1108 | p->pad = ' '; | |
1109 | } | |
1110 | ||
1111 | static void | |
1112 | init_data (p, string, length, format, mode) | |
1113 | struct DATA *p; | |
1114 | char *string; | |
1115 | size_t length; | |
1116 | const char *format; | |
1117 | int mode; | |
1118 | { | |
1119 | p->length = length - 1; /* leave room for '\0' */ | |
1120 | p->holder = p->base = string; | |
1121 | p->pf = format; | |
1122 | p->counter = 0; | |
1123 | p->flags = (mode == PFM_AS) ? PF_ALLOCBUF : 0; | |
1124 | } | |
1125 | ||
1126 | static int | |
1127 | #if defined (__STDC__) | |
1128 | vsnprintf_internal(struct DATA *data, char *string, size_t length, const char *format, va_list args) | |
1129 | #else | |
1130 | vsnprintf_internal(data, string, length, format, args) | |
1131 | struct DATA *data; | |
1132 | char *string; | |
1133 | size_t length; | |
1134 | const char *format; | |
1135 | va_list args; | |
1136 | #endif | |
1137 | { | |
1138 | double d; /* temporary holder */ | |
1139 | #ifdef HAVE_LONG_DOUBLE | |
1140 | long double ld; /* for later */ | |
1141 | #endif | |
1142 | unsigned long ul; | |
1143 | #ifdef HAVE_LONG_LONG | |
1144 | unsigned long long ull; | |
1145 | #endif | |
1146 | int state, i, c, n; | |
1147 | char *s; | |
7117c2d2 JA |
1148 | #if HANDLE_MULTIBYTE |
1149 | wchar_t *ws; | |
1150 | wint_t wc; | |
1151 | #endif | |
f73dda09 JA |
1152 | const char *convstart; |
1153 | ||
7117c2d2 JA |
1154 | /* Sanity check, the string length must be >= 0. C99 actually says that |
1155 | LENGTH can be zero here, in the case of snprintf/vsnprintf (it's never | |
1156 | 0 in the case of asprintf/vasprintf), and the return value is the number | |
f73dda09 | 1157 | of characters that would have been written. */ |
7117c2d2 | 1158 | if (length < 0) |
f73dda09 JA |
1159 | return -1; |
1160 | ||
1161 | if (format == 0) | |
1162 | return 0; | |
1163 | ||
7117c2d2 JA |
1164 | /* Reset these for each call because the locale might have changed. */ |
1165 | decpoint = thoussep = 0; | |
1166 | grouping = 0; | |
1167 | ||
f73dda09 JA |
1168 | for (; c = *(data->pf); data->pf++) |
1169 | { | |
1170 | if (c != '%') | |
1171 | { | |
1172 | PUT_CHAR (c, data); | |
1173 | continue; | |
1174 | } | |
1175 | ||
1176 | convstart = data->pf; | |
1177 | init_conv_flag (data); /* initialise format flags */ | |
1178 | ||
1179 | state = 1; | |
1180 | for (state = 1; state && *data->pf; ) | |
1181 | { | |
1182 | c = *(++data->pf); | |
1183 | /* fmtend = data->pf */ | |
1184 | #if defined (FLOATING_POINT) && defined (HAVE_LONG_DOUBLE) | |
1185 | if (data->flags & PF_LONGDBL) | |
1186 | { | |
1187 | switch (c) | |
1188 | { | |
1189 | case 'f': case 'F': | |
1190 | case 'e': case 'E': | |
1191 | case 'g': case 'G': | |
1192 | # ifdef HAVE_PRINTF_A_FORMAT | |
1193 | case 'a': case 'A': | |
1194 | # endif | |
1195 | STAR_ARGS (data); | |
1196 | ld = GETLDOUBLE (data); | |
1197 | ldfallback (data, convstart, data->pf, ld); | |
1198 | goto conv_break; | |
1199 | } | |
1200 | } | |
1201 | #endif /* FLOATING_POINT && HAVE_LONG_DOUBLE */ | |
1202 | ||
1203 | switch (c) | |
1204 | { | |
1205 | /* Parse format flags */ | |
1206 | case '\0': /* a NULL here ? ? bail out */ | |
1207 | *data->holder = '\0'; | |
1208 | return data->counter; | |
1209 | break; | |
1210 | case '#': | |
1211 | data->flags |= PF_ALTFORM; | |
1212 | continue; | |
1213 | case '0': | |
1214 | data->flags |= PF_ZEROPAD; | |
1215 | data->pad = '0'; | |
1216 | continue; | |
1217 | case '*': | |
1218 | if (data->flags & PF_DOT) | |
1219 | data->flags |= PF_STAR_P; | |
1220 | else | |
1221 | data->flags |= PF_STAR_W; | |
1222 | continue; | |
1223 | case '-': | |
1224 | data->flags |= PF_LADJUST; | |
1225 | data->justify = LEFT; | |
1226 | continue; | |
1227 | case ' ': | |
1228 | if ((data->flags & PF_PLUS) == 0) | |
1229 | data->flags |= PF_SPACE; | |
1230 | continue; | |
1231 | case '+': | |
1232 | data->flags |= PF_PLUS; | |
1233 | data->justify = RIGHT; | |
1234 | continue; | |
7117c2d2 JA |
1235 | case '\'': |
1236 | data->flags |= PF_THOUSANDS; | |
f73dda09 JA |
1237 | continue; |
1238 | ||
1239 | case '1': case '2': case '3': | |
1240 | case '4': case '5': case '6': | |
1241 | case '7': case '8': case '9': | |
1242 | n = 0; | |
1243 | do | |
1244 | { | |
1245 | n = n * 10 + TODIGIT(c); | |
1246 | c = *(++data->pf); | |
1247 | } | |
1248 | while (DIGIT(c)); | |
1249 | data->pf--; /* went too far */ | |
1250 | if (n < 0) | |
1251 | n = 0; | |
1252 | if (data->flags & PF_DOT) | |
1253 | data->precision = n; | |
1254 | else | |
1255 | data->width = n; | |
1256 | continue; | |
1257 | ||
1258 | /* optional precision */ | |
1259 | case '.': | |
1260 | data->flags |= PF_DOT; | |
1261 | data->precision = 0; | |
1262 | continue; | |
1263 | ||
1264 | /* length modifiers */ | |
1265 | case 'h': | |
1266 | data->flags |= (data->flags & PF_SHORTINT) ? PF_SIGNEDCHAR : PF_SHORTINT; | |
1267 | continue; | |
1268 | case 'l': | |
1269 | data->flags |= (data->flags & PF_LONGINT) ? PF_LONGLONG : PF_LONGINT; | |
1270 | continue; | |
1271 | case 'L': | |
1272 | data->flags |= PF_LONGDBL; | |
1273 | continue; | |
1274 | case 'q': | |
1275 | data->flags |= PF_LONGLONG; | |
1276 | continue; | |
1277 | case 'j': | |
1278 | data->flags |= PF_INTMAX_T; | |
1279 | SET_SIZE_FLAGS(data, intmax_t); | |
1280 | continue; | |
1281 | case 'z': | |
1282 | data->flags |= PF_SIZE_T; | |
1283 | SET_SIZE_FLAGS(data, size_t); | |
1284 | continue; | |
1285 | case 't': | |
1286 | data->flags |= PF_PTRDIFF_T; | |
1287 | SET_SIZE_FLAGS(data, ptrdiff_t); | |
1288 | continue; | |
1289 | ||
1290 | /* Conversion specifiers */ | |
1291 | #ifdef FLOATING_POINT | |
1292 | case 'f': /* float, double */ | |
1293 | case 'F': | |
1294 | STAR_ARGS(data); | |
1295 | d = GETDOUBLE(data); | |
1296 | floating(data, d); | |
1297 | conv_break: | |
1298 | state = 0; | |
1299 | break; | |
1300 | case 'g': | |
1301 | case 'G': | |
1302 | STAR_ARGS(data); | |
1303 | DEF_PREC(data); | |
1304 | d = GETDOUBLE(data); | |
1305 | i = log_10(d); | |
1306 | /* | |
1307 | * for '%g|%G' ANSI: use f if exponent | |
1308 | * is in the range or [-4,p] exclusively | |
1309 | * else use %e|%E | |
1310 | */ | |
1311 | if (-4 < i && i < data->precision) | |
7117c2d2 JA |
1312 | { |
1313 | /* reset precision */ | |
1314 | data->precision -= i + 1; | |
1315 | floating(data, d); | |
1316 | } | |
f73dda09 | 1317 | else |
7117c2d2 JA |
1318 | { |
1319 | /* reduce precision by 1 because of leading digit before | |
1320 | decimal point in e format. */ | |
1321 | data->precision--; | |
1322 | exponent(data, d); | |
1323 | } | |
f73dda09 JA |
1324 | state = 0; |
1325 | break; | |
1326 | case 'e': | |
1327 | case 'E': /* Exponent double */ | |
1328 | STAR_ARGS(data); | |
1329 | d = GETDOUBLE(data); | |
1330 | exponent(data, d); | |
1331 | state = 0; | |
1332 | break; | |
1333 | # ifdef HAVE_PRINTF_A_FORMAT | |
1334 | case 'a': | |
1335 | case 'A': | |
1336 | STAR_ARGS(data); | |
1337 | d = GETDOUBLE(data); | |
1338 | dfallback(data, convstart, data->pf, d); | |
1339 | state = 0; | |
1340 | break; | |
1341 | # endif /* HAVE_PRINTF_A_FORMAT */ | |
1342 | #endif /* FLOATING_POINT */ | |
1343 | case 'U': | |
1344 | data->flags |= PF_LONGINT; | |
1345 | /* FALLTHROUGH */ | |
1346 | case 'u': | |
1347 | STAR_ARGS(data); | |
1348 | #ifdef HAVE_LONG_LONG | |
1349 | if (data->flags & PF_LONGLONG) | |
1350 | { | |
7117c2d2 | 1351 | ull = GETARG (unsigned long long); |
f73dda09 JA |
1352 | lnumber(data, ull, 10); |
1353 | } | |
1354 | else | |
1355 | #endif | |
1356 | { | |
1357 | ul = GETUNSIGNED(data); | |
1358 | number(data, ul, 10); | |
1359 | } | |
1360 | state = 0; | |
1361 | break; | |
1362 | case 'D': | |
1363 | data->flags |= PF_LONGINT; | |
1364 | /* FALLTHROUGH */ | |
1365 | case 'd': /* decimal */ | |
1366 | case 'i': | |
1367 | STAR_ARGS(data); | |
1368 | #ifdef HAVE_LONG_LONG | |
1369 | if (data->flags & PF_LONGLONG) | |
1370 | { | |
7117c2d2 | 1371 | ull = GETARG (long long); |
f73dda09 JA |
1372 | lnumber(data, ull, 10); |
1373 | } | |
1374 | else | |
1375 | #endif | |
1376 | { | |
1377 | ul = GETSIGNED(data); | |
1378 | number(data, ul, 10); | |
1379 | } | |
1380 | state = 0; | |
1381 | break; | |
1382 | case 'o': /* octal */ | |
1383 | STAR_ARGS(data); | |
1384 | #ifdef HAVE_LONG_LONG | |
1385 | if (data->flags & PF_LONGLONG) | |
1386 | { | |
7117c2d2 | 1387 | ull = GETARG (unsigned long long); |
f73dda09 JA |
1388 | lnumber(data, ull, 8); |
1389 | } | |
1390 | else | |
1391 | #endif | |
1392 | { | |
1393 | ul = GETUNSIGNED(data); | |
1394 | number(data, ul, 8); | |
1395 | } | |
1396 | state = 0; | |
1397 | break; | |
1398 | case 'x': | |
1399 | case 'X': /* hexadecimal */ | |
1400 | STAR_ARGS(data); | |
1401 | #ifdef HAVE_LONG_LONG | |
1402 | if (data->flags & PF_LONGLONG) | |
1403 | { | |
7117c2d2 | 1404 | ull = GETARG (unsigned long long); |
f73dda09 JA |
1405 | lnumber(data, ull, 16); |
1406 | } | |
1407 | else | |
1408 | #endif | |
1409 | { | |
1410 | ul = GETUNSIGNED(data); | |
1411 | number(data, ul, 16); | |
1412 | } | |
1413 | state = 0; | |
1414 | break; | |
1415 | case 'p': | |
1416 | STAR_ARGS(data); | |
7117c2d2 | 1417 | ul = (unsigned long)GETARG (void *); |
f73dda09 JA |
1418 | pointer(data, ul); |
1419 | state = 0; | |
1420 | break; | |
7117c2d2 JA |
1421 | #if HANDLE_MULTIBYTE |
1422 | case 'C': | |
1423 | data->flags |= PF_LONGINT; | |
1424 | /* FALLTHROUGH */ | |
1425 | #endif | |
f73dda09 | 1426 | case 'c': /* character */ |
7117c2d2 JA |
1427 | STAR_ARGS(data); |
1428 | #if HANDLE_MULTIBYTE | |
1429 | if (data->flags & PF_LONGINT) | |
1430 | { | |
1431 | wc = GETARG (wint_t); | |
1432 | wchars (data, wc); | |
1433 | } | |
1434 | else | |
1435 | #endif | |
1436 | { | |
1437 | ul = GETARG (int); | |
1438 | PUT_CHAR(ul, data); | |
1439 | } | |
f73dda09 JA |
1440 | state = 0; |
1441 | break; | |
7117c2d2 JA |
1442 | #if HANDLE_MULTIBYTE |
1443 | case 'S': | |
1444 | data->flags |= PF_LONGINT; | |
1445 | /* FALLTHROUGH */ | |
1446 | #endif | |
f73dda09 JA |
1447 | case 's': /* string */ |
1448 | STAR_ARGS(data); | |
7117c2d2 JA |
1449 | #if HANDLE_MULTIBYTE |
1450 | if (data->flags & PF_LONGINT) | |
1451 | { | |
1452 | ws = GETARG (wchar_t *); | |
1453 | wstrings (data, ws); | |
1454 | } | |
1455 | else | |
1456 | #endif | |
1457 | { | |
1458 | s = GETARG (char *); | |
1459 | strings(data, s); | |
1460 | } | |
f73dda09 JA |
1461 | state = 0; |
1462 | break; | |
1463 | case 'n': | |
1464 | #ifdef HAVE_LONG_LONG | |
1465 | if (data->flags & PF_LONGLONG) | |
7117c2d2 | 1466 | *(GETARG (long long *)) = data->counter; |
f73dda09 JA |
1467 | else |
1468 | #endif | |
1469 | if (data->flags & PF_LONGINT) | |
7117c2d2 | 1470 | *(GETARG (long *)) = data->counter; |
f73dda09 | 1471 | else if (data->flags & PF_SHORTINT) |
7117c2d2 | 1472 | *(GETARG (short *)) = data->counter; |
f73dda09 | 1473 | else |
7117c2d2 | 1474 | *(GETARG (int *)) = data->counter; |
f73dda09 JA |
1475 | state = 0; |
1476 | break; | |
1477 | case '%': /* nothing just % */ | |
1478 | PUT_CHAR('%', data); | |
1479 | state = 0; | |
1480 | break; | |
1481 | default: | |
1482 | /* is this an error ? maybe bail out */ | |
1483 | state = 0; | |
1484 | break; | |
1485 | } /* end switch */ | |
1486 | } /* end of `%' for loop */ | |
1487 | } /* end of format string for loop */ | |
1488 | ||
1489 | if (data->length >= 0) | |
1490 | *data->holder = '\0'; /* the end ye ! */ | |
1491 | ||
1492 | return data->counter; | |
1493 | } | |
1494 | ||
1495 | #if defined (FLOATING_POINT) && defined (HAVE_LONG_DOUBLE) | |
1496 | /* | |
1497 | * Printing floating point numbers accurately is an art. I'm not good | |
1498 | * at it. Fall back to sprintf for long double formats. | |
1499 | */ | |
1500 | static void | |
1501 | ldfallback (data, fs, fe, ld) | |
1502 | struct DATA *data; | |
1503 | const char *fs, *fe; | |
1504 | long double ld; | |
1505 | { | |
1506 | register char *x; | |
1507 | char fmtbuf[FALLBACK_FMTSIZE], *obuf; | |
1508 | int fl; | |
1509 | ||
7117c2d2 | 1510 | obuf = (char *)xmalloc(LFALLBACK_BASE + (data->precision < 6 ? 6 : data->precision) + 2); |
f73dda09 JA |
1511 | fl = fe - fs + 1; |
1512 | strncpy (fmtbuf, fs, fl); | |
1513 | fmtbuf[fl] = '\0'; | |
1514 | sprintf (obuf, fmtbuf, ld); | |
1515 | for (x = obuf; *x; x++) | |
1516 | PUT_CHAR (*x, data); | |
1517 | xfree (obuf); | |
1518 | } | |
1519 | #endif /* FLOATING_POINT && HAVE_LONG_DOUBLE */ | |
1520 | ||
1521 | #ifdef FLOATING_POINT | |
1522 | /* Used for %a, %A if the libc printf supports them. */ | |
1523 | static void | |
1524 | dfallback (data, fs, fe, d) | |
1525 | struct DATA *data; | |
1526 | const char *fs, *fe; | |
1527 | double d; | |
1528 | { | |
1529 | register char *x; | |
1530 | char fmtbuf[FALLBACK_FMTSIZE], obuf[FALLBACK_BASE]; | |
1531 | int fl; | |
1532 | ||
1533 | fl = fe - fs + 1; | |
1534 | strncpy (fmtbuf, fs, fl); | |
1535 | fmtbuf[fl] = '\0'; | |
1536 | sprintf (obuf, fmtbuf, d); | |
1537 | for (x = obuf; *x; x++) | |
1538 | PUT_CHAR (*x, data); | |
1539 | } | |
1540 | #endif /* FLOATING_POINT */ | |
1541 | ||
1542 | #ifndef HAVE_SNPRINTF | |
1543 | ||
1544 | int | |
1545 | #if defined (__STDC__) | |
1546 | vsnprintf(char *string, size_t length, const char *format, va_list args) | |
1547 | #else | |
1548 | vsnprintf(string, length, format, args) | |
1549 | char *string; | |
1550 | size_t length; | |
1551 | const char *format; | |
1552 | va_list args; | |
1553 | #endif | |
1554 | { | |
1555 | struct DATA data; | |
1556 | ||
7117c2d2 JA |
1557 | if (string == 0 && length != 0) |
1558 | return 0; | |
f73dda09 JA |
1559 | init_data (&data, string, length, format, PFM_SN); |
1560 | return (vsnprintf_internal(&data, string, length, format, args)); | |
1561 | } | |
1562 | ||
1563 | int | |
1564 | #if defined(PREFER_STDARG) | |
1565 | snprintf(char *string, size_t length, const char * format, ...) | |
1566 | #else | |
1567 | snprintf(string, length, format, va_alist) | |
1568 | char *string; | |
1569 | size_t length; | |
1570 | const char *format; | |
1571 | va_dcl | |
1572 | #endif | |
1573 | { | |
1574 | struct DATA data; | |
1575 | int rval; | |
1576 | va_list args; | |
1577 | ||
7117c2d2 | 1578 | SH_VA_START(args, format); |
f73dda09 | 1579 | |
7117c2d2 JA |
1580 | if (string == 0 && length != 0) |
1581 | return 0; | |
f73dda09 JA |
1582 | init_data (&data, string, length, format, PFM_SN); |
1583 | rval = vsnprintf_internal (&data, string, length, format, args); | |
1584 | ||
1585 | va_end(args); | |
1586 | ||
1587 | return rval; | |
1588 | } | |
1589 | ||
1590 | #endif /* HAVE_SNPRINTF */ | |
1591 | ||
1592 | #ifndef HAVE_ASPRINTF | |
1593 | ||
1594 | int | |
1595 | #if defined (__STDC__) | |
1596 | vasprintf(char **stringp, const char *format, va_list args) | |
1597 | #else | |
1598 | vasprintf(stringp, format, args) | |
1599 | char **stringp; | |
1600 | const char *format; | |
1601 | va_list args; | |
1602 | #endif | |
1603 | { | |
1604 | struct DATA data; | |
1605 | char *string; | |
1606 | int r; | |
1607 | ||
1608 | string = (char *)xmalloc(ASBUFSIZE); | |
1609 | init_data (&data, string, ASBUFSIZE, format, PFM_AS); | |
1610 | r = vsnprintf_internal(&data, string, ASBUFSIZE, format, args); | |
1611 | *stringp = data.base; /* not string in case reallocated */ | |
1612 | return r; | |
1613 | } | |
1614 | ||
1615 | int | |
1616 | #if defined(PREFER_STDARG) | |
1617 | asprintf(char **stringp, const char * format, ...) | |
1618 | #else | |
1619 | asprintf(stringp, format, va_alist) | |
1620 | char **stringp; | |
1621 | const char *format; | |
1622 | va_dcl | |
1623 | #endif | |
1624 | { | |
1625 | int rval; | |
1626 | va_list args; | |
1627 | ||
7117c2d2 | 1628 | SH_VA_START(args, format); |
f73dda09 JA |
1629 | |
1630 | rval = vasprintf (stringp, format, args); | |
1631 | ||
1632 | va_end(args); | |
1633 | ||
1634 | return rval; | |
1635 | } | |
1636 | ||
1637 | #endif | |
1638 | ||
1639 | #endif | |
1640 | ||
1641 | #ifdef DRIVER | |
1642 | ||
1643 | static void | |
1644 | memory_error_and_abort () | |
1645 | { | |
1646 | write (2, "out of virtual memory\n", 22); | |
1647 | abort (); | |
1648 | } | |
1649 | ||
1650 | static void * | |
1651 | xmalloc(bytes) | |
1652 | size_t bytes; | |
1653 | { | |
1654 | void *ret; | |
1655 | ||
1656 | ret = malloc(bytes); | |
1657 | if (ret == 0) | |
1658 | memory_error_and_abort (); | |
1659 | return ret; | |
1660 | } | |
1661 | ||
1662 | static void * | |
1663 | xrealloc (pointer, bytes) | |
1664 | void *pointer; | |
1665 | size_t bytes; | |
1666 | { | |
1667 | void *ret; | |
1668 | ||
1669 | ret = pointer ? realloc(pointer, bytes) : malloc(bytes); | |
1670 | if (ret == 0) | |
1671 | memory_error_and_abort (); | |
1672 | return ret; | |
1673 | } | |
1674 | ||
1675 | static void | |
1676 | xfree(x) | |
1677 | void *x; | |
1678 | { | |
1679 | if (x) | |
1680 | free (x); | |
1681 | } | |
1682 | ||
f73dda09 JA |
1683 | /* set of small tests for snprintf() */ |
1684 | main() | |
1685 | { | |
1686 | char holder[100]; | |
1687 | char *h; | |
1688 | int i, si, ai; | |
1689 | ||
7117c2d2 JA |
1690 | #ifdef HAVE_LOCALE_H |
1691 | setlocale(LC_ALL, ""); | |
1692 | #endif | |
1693 | ||
1694 | #if 1 | |
1695 | si = snprintf((char *)NULL, 0, "abcde\n"); | |
1696 | printf("snprintf returns %d with NULL first argument and size of 0\n", si); | |
1697 | si = snprintf(holder, 0, "abcde\n"); | |
1698 | printf("snprintf returns %d with non-NULL first argument and size of 0\n", si); | |
1699 | si = snprintf((char *)NULL, 16, "abcde\n"); | |
1700 | printf("snprintf returns %d with NULL first argument and non-zero size\n", si); | |
1701 | ||
f73dda09 JA |
1702 | /* |
1703 | printf("Suite of test for snprintf:\n"); | |
1704 | printf("a_format\n"); | |
1705 | printf("printf() format\n"); | |
1706 | printf("snprintf() format\n\n"); | |
1707 | */ | |
1708 | /* Checking the field widths */ | |
1709 | ||
1710 | printf("/%%ld %%ld/, 336, 336\n"); | |
1711 | snprintf(holder, sizeof holder, "/%ld %ld/\n", 336, 336); | |
1712 | asprintf(&h, "/%ld %ld/\n", 336, 336); | |
1713 | printf("/%ld %ld/\n", 336, 336); | |
1714 | printf("%s", holder); | |
1715 | printf("%s\n", h); | |
1716 | ||
1717 | printf("/%%d/, 336\n"); | |
1718 | snprintf(holder, sizeof holder, "/%d/\n", 336); | |
1719 | asprintf(&h, "/%d/\n", 336); | |
1720 | printf("/%d/\n", 336); | |
1721 | printf("%s", holder); | |
1722 | printf("%s\n", h); | |
1723 | ||
1724 | printf("/%%2d/, 336\n"); | |
1725 | snprintf(holder, sizeof holder, "/%2d/\n", 336); | |
1726 | asprintf(&h, "/%2d/\n", 336); | |
1727 | printf("/%2d/\n", 336); | |
1728 | printf("%s", holder); | |
1729 | printf("%s\n", h); | |
1730 | ||
1731 | printf("/%%10d/, 336\n"); | |
1732 | snprintf(holder, sizeof holder, "/%10d/\n", 336); | |
1733 | asprintf(&h, "/%10d/\n", 336); | |
1734 | printf("/%10d/\n", 336); | |
1735 | printf("%s", holder); | |
1736 | printf("%s\n", h); | |
1737 | ||
1738 | printf("/%%-10d/, 336\n"); | |
1739 | snprintf(holder, sizeof holder, "/%-10d/\n", 336); | |
1740 | asprintf(&h, "/%-10d/\n", 336); | |
1741 | printf("/%-10d/\n", 336); | |
1742 | printf("%s", holder); | |
1743 | printf("%s\n", h); | |
1744 | ||
1745 | ||
1746 | /* floating points */ | |
1747 | ||
1748 | printf("/%%f/, 1234.56\n"); | |
1749 | snprintf(holder, sizeof holder, "/%f/\n", 1234.56); | |
1750 | asprintf(&h, "/%f/\n", 1234.56); | |
1751 | printf("/%f/\n", 1234.56); | |
1752 | printf("%s", holder); | |
1753 | printf("%s\n", h); | |
1754 | ||
1755 | printf("/%%e/, 1234.56\n"); | |
1756 | snprintf(holder, sizeof holder, "/%e/\n", 1234.56); | |
1757 | asprintf(&h, "/%e/\n", 1234.56); | |
1758 | printf("/%e/\n", 1234.56); | |
1759 | printf("%s", holder); | |
1760 | printf("%s\n", h); | |
1761 | ||
1762 | printf("/%%4.2f/, 1234.56\n"); | |
1763 | snprintf(holder, sizeof holder, "/%4.2f/\n", 1234.56); | |
1764 | asprintf(&h, "/%4.2f/\n", 1234.56); | |
1765 | printf("/%4.2f/\n", 1234.56); | |
1766 | printf("%s", holder); | |
1767 | printf("%s\n", h); | |
1768 | ||
1769 | printf("/%%3.1f/, 1234.56\n"); | |
1770 | snprintf(holder, sizeof holder, "/%3.1f/\n", 1234.56); | |
1771 | asprintf(&h, "/%3.1f/\n", 1234.56); | |
1772 | printf("/%3.1f/\n", 1234.56); | |
1773 | printf("%s", holder); | |
1774 | printf("%s\n", h); | |
1775 | ||
1776 | printf("/%%10.3f/, 1234.56\n"); | |
1777 | snprintf(holder, sizeof holder, "/%10.3f/\n", 1234.56); | |
1778 | asprintf(&h, "/%10.3f/\n", 1234.56); | |
1779 | printf("/%10.3f/\n", 1234.56); | |
1780 | printf("%s", holder); | |
1781 | printf("%s\n", h); | |
1782 | ||
1783 | printf("/%%10.3e/, 1234.56\n"); | |
1784 | snprintf(holder, sizeof holder, "/%10.3e/\n", 1234.56); | |
1785 | asprintf(&h, "/%10.3e/\n", 1234.56); | |
1786 | printf("/%10.3e/\n", 1234.56); | |
1787 | printf("%s", holder); | |
1788 | printf("%s\n", h); | |
1789 | ||
1790 | printf("/%%+4.2f/, 1234.56\n"); | |
1791 | snprintf(holder, sizeof holder, "/%+4.2f/\n", 1234.56); | |
1792 | asprintf(&h, "/%+4.2f/\n", 1234.56); | |
1793 | printf("/%+4.2f/\n", 1234.56); | |
1794 | printf("%s", holder); | |
1795 | printf("%s\n", h); | |
1796 | ||
1797 | printf("/%%010.2f/, 1234.56\n"); | |
1798 | snprintf(holder, sizeof holder, "/%010.2f/\n", 1234.56); | |
1799 | asprintf(&h, "/%010.2f/\n", 1234.56); | |
1800 | printf("/%010.2f/\n", 1234.56); | |
1801 | printf("%s", holder); | |
1802 | printf("%s\n", h); | |
1803 | ||
1804 | #define BLURB "Outstanding acting !" | |
1805 | /* strings precisions */ | |
1806 | ||
1807 | printf("/%%2s/, \"%s\"\n", BLURB); | |
1808 | snprintf(holder, sizeof holder, "/%2s/\n", BLURB); | |
1809 | asprintf(&h, "/%2s/\n", BLURB); | |
1810 | printf("/%2s/\n", BLURB); | |
1811 | printf("%s", holder); | |
1812 | printf("%s\n", h); | |
1813 | ||
1814 | printf("/%%22s/ %s\n", BLURB); | |
1815 | snprintf(holder, sizeof holder, "/%22s/\n", BLURB); | |
1816 | asprintf(&h, "/%22s/\n", BLURB); | |
1817 | printf("/%22s/\n", BLURB); | |
1818 | printf("%s", holder); | |
1819 | printf("%s\n", h); | |
1820 | ||
1821 | printf("/%%22.5s/ %s\n", BLURB); | |
1822 | snprintf(holder, sizeof holder, "/%22.5s/\n", BLURB); | |
1823 | asprintf(&h, "/%22.5s/\n", BLURB); | |
1824 | printf("/%22.5s/\n", BLURB); | |
1825 | printf("%s", holder); | |
1826 | printf("%s\n", h); | |
1827 | ||
1828 | printf("/%%-22.5s/ %s\n", BLURB); | |
1829 | snprintf(holder, sizeof holder, "/%-22.5s/\n", BLURB); | |
1830 | asprintf(&h, "/%-22.5s/\n", BLURB); | |
1831 | printf("/%-22.5s/\n", BLURB); | |
1832 | printf("%s", holder); | |
1833 | printf("%s\n", h); | |
1834 | ||
1835 | /* see some flags */ | |
1836 | ||
1837 | printf("%%x %%X %%#x, 31, 31, 31\n"); | |
1838 | snprintf(holder, sizeof holder, "%x %X %#x\n", 31, 31, 31); | |
1839 | asprintf(&h, "%x %X %#x\n", 31, 31, 31); | |
1840 | printf("%x %X %#x\n", 31, 31, 31); | |
1841 | printf("%s", holder); | |
1842 | printf("%s\n", h); | |
1843 | ||
1844 | printf("**%%d**%% d**%% d**, 42, 42, -42\n"); | |
1845 | snprintf(holder, sizeof holder, "**%d**% d**% d**\n", 42, 42, -42); | |
1846 | asprintf(&h, "**%d**% d**% d**\n", 42, 42, -42); | |
1847 | printf("**%d**% d**% d**\n", 42, 42, -42); | |
1848 | printf("%s", holder); | |
1849 | printf("%s\n", h); | |
1850 | ||
1851 | /* other flags */ | |
1852 | ||
1853 | printf("/%%g/, 31.4\n"); | |
1854 | snprintf(holder, sizeof holder, "/%g/\n", 31.4); | |
1855 | asprintf(&h, "/%g/\n", 31.4); | |
1856 | printf("/%g/\n", 31.4); | |
1857 | printf("%s", holder); | |
1858 | printf("%s\n", h); | |
1859 | ||
1860 | printf("/%%.6g/, 31.4\n"); | |
1861 | snprintf(holder, sizeof holder, "/%.6g/\n", 31.4); | |
1862 | asprintf(&h, "/%.6g/\n", 31.4); | |
1863 | printf("/%.6g/\n", 31.4); | |
1864 | printf("%s", holder); | |
1865 | printf("%s\n", h); | |
1866 | ||
1867 | printf("/%%.1G/, 31.4\n"); | |
1868 | snprintf(holder, sizeof holder, "/%.1G/\n", 31.4); | |
1869 | asprintf(&h, "/%.1G/\n", 31.4); | |
1870 | printf("/%.1G/\n", 31.4); | |
1871 | printf("%s", holder); | |
1872 | printf("%s\n", h); | |
1873 | ||
1874 | printf("/%%.1G/, 3100000000.4\n"); | |
1875 | snprintf(holder, sizeof holder, "/%.1G/\n", 3100000000.4); | |
1876 | asprintf(&h, "/%.1G/\n", 3100000000.4); | |
1877 | printf("/%.1G/\n", 3100000000.4); | |
1878 | printf("%s", holder); | |
1879 | printf("%s\n", h); | |
1880 | ||
1881 | printf("abc%%n\n"); | |
1882 | printf("abc%n", &i); printf("%d\n", i); | |
1883 | snprintf(holder, sizeof holder, "abc%n", &i); | |
1884 | printf("%s", holder); printf("%d\n\n", i); | |
1885 | asprintf(&h, "abc%n", &i); | |
1886 | printf("%s", h); printf("%d\n\n", i); | |
1887 | ||
1888 | printf("%%*.*s --> 10.10\n"); | |
1889 | snprintf(holder, sizeof holder, "%*.*s\n", 10, 10, BLURB); | |
1890 | asprintf(&h, "%*.*s\n", 10, 10, BLURB); | |
1891 | printf("%*.*s\n", 10, 10, BLURB); | |
1892 | printf("%s", holder); | |
1893 | printf("%s\n", h); | |
1894 | ||
1895 | printf("%%%%%%%%\n"); | |
1896 | snprintf(holder, sizeof holder, "%%%%\n"); | |
1897 | asprintf(&h, "%%%%\n"); | |
1898 | printf("%%%%\n"); | |
1899 | printf("%s", holder); | |
1900 | printf("%s\n", h); | |
1901 | ||
1902 | #define BIG "Hello this is a too big string for the buffer" | |
1903 | /* printf("A buffer to small of 10, trying to put this:\n");*/ | |
1904 | printf("<%%>, %s\n", BIG); | |
1905 | i = snprintf(holder, 10, "%s\n", BIG); | |
1906 | i = asprintf(&h, "%s", BIG); | |
1907 | printf("<%s>\n", BIG); | |
1908 | printf("<%s>\n", holder); | |
1909 | printf("<%s>\n\n", h); | |
1910 | ||
1911 | printf ("<%%p> vsnprintf\n"); | |
1912 | i = snprintf(holder, 100, "%p", vsnprintf); | |
1913 | i = asprintf(&h, "%p", vsnprintf); | |
1914 | printf("<%p>\n", vsnprintf); | |
1915 | printf("<%s>\n", holder); | |
1916 | printf("<%s>\n\n", h); | |
1917 | ||
1918 | printf ("<%%lu> LONG_MAX+1\n"); | |
1919 | i = snprintf(holder, 100, "%lu", (unsigned long)(LONG_MAX)+1); | |
1920 | i = asprintf(&h, "%lu", (unsigned long)(LONG_MAX)+1); | |
1921 | printf("<%lu>\n", (unsigned long)(LONG_MAX)+1); | |
1922 | printf("<%s>\n", holder); | |
1923 | printf("<%s>\n\n", h); | |
1924 | ||
1925 | #ifdef HAVE_LONG_LONG | |
1926 | printf ("<%%llu> LLONG_MAX+1\n"); | |
1927 | i = snprintf(holder, 100, "%llu", (unsigned long long)(LLONG_MAX)+1); | |
1928 | i = asprintf(&h, "%llu", (unsigned long long)(LLONG_MAX)+1); | |
1929 | printf("<%llu>\n", (unsigned long long)(LLONG_MAX)+1); | |
1930 | printf("<%s>\n", holder); | |
1931 | printf("<%s>\n\n", h); | |
1932 | #endif | |
1933 | ||
1934 | #ifdef HAVE_LONG_DOUBLE | |
1935 | printf ("<%%6.2LE> 42.42\n"); | |
1936 | i = snprintf(holder, 100, "%6.2LE", (long double)42.42); | |
1937 | i = asprintf(&h, "%6.2LE", (long double)42.42); | |
1938 | printf ("<%6.2LE>\n", (long double)42.42); | |
1939 | printf ("<%s>\n", holder); | |
1940 | printf ("<%s>\n\n", h); | |
1941 | #endif | |
1942 | ||
1943 | #ifdef HAVE_PRINTF_A_FORMAT | |
1944 | printf ("<%%6.2A> 42.42\n"); | |
1945 | i = snprintf(holder, 100, "%6.2A", 42.42); | |
1946 | i = asprintf(&h, "%6.2A", 42.42); | |
1947 | printf ("<%6.2A>\n", 42.42); | |
1948 | printf ("<%s>\n", holder); | |
1949 | printf ("<%s>\n\n", h); | |
1950 | ||
1951 | printf ("<%%6.2LA> 42.42\n"); | |
1952 | i = snprintf(holder, 100, "%6.2LA", (long double)42.42); | |
1953 | i = asprintf(&h, "%6.2LA", (long double)42.42); | |
1954 | printf ("<%6.2LA>\n", (long double)42.42); | |
1955 | printf ("<%s>\n", holder); | |
1956 | printf ("<%s>\n\n", h); | |
1957 | #endif | |
1958 | ||
1959 | printf ("<%%.10240f> DBL_MAX\n"); | |
1960 | si = snprintf(holder, 100, "%.10240f", DBL_MAX); | |
1961 | ai = asprintf(&h, "%.10240f", DBL_MAX); | |
1962 | printf ("<%.10240f>\n", DBL_MAX); | |
1963 | printf ("<%d> <%s>\n", si, holder); | |
1964 | printf ("<%d> <%s>\n\n", ai, h); | |
1965 | ||
1966 | printf ("<%%.10240Lf> LDBL_MAX\n"); | |
1967 | si = snprintf(holder, 100, "%.10240Lf", (long double)LDBL_MAX); | |
1968 | ai = asprintf(&h, "%.10240Lf", (long double)LDBL_MAX); | |
1969 | printf ("<%.10240Lf>\n", (long double)LDBL_MAX); | |
1970 | printf ("<%d> <%s>\n", si, holder); | |
1971 | printf ("<%d> <%s>\n\n", ai, h); | |
1972 | ||
7117c2d2 JA |
1973 | /* huh? */ |
1974 | printf("/%%g/, 421.2345\n"); | |
1975 | snprintf(holder, sizeof holder, "/%g/\n", 421.2345); | |
1976 | asprintf(&h, "/%g/\n", 421.2345); | |
1977 | printf("/%g/\n", 421.2345); | |
1978 | printf("%s", holder); | |
1979 | printf("%s\n", h); | |
1980 | ||
1981 | printf("/%%g/, 4214.2345\n"); | |
1982 | snprintf(holder, sizeof holder, "/%g/\n", 4214.2345); | |
1983 | asprintf(&h, "/%g/\n", 4214.2345); | |
1984 | printf("/%g/\n", 4214.2345); | |
1985 | printf("%s", holder); | |
1986 | printf("%s\n", h); | |
1987 | ||
1988 | printf("/%%.5g/, 4214.2345\n"); | |
1989 | snprintf(holder, sizeof holder, "/%.5g/\n", 4214.2345); | |
1990 | asprintf(&h, "/%.5g/\n", 4214.2345); | |
1991 | printf("/%.5g/\n", 4214.2345); | |
1992 | printf("%s", holder); | |
1993 | printf("%s\n", h); | |
1994 | ||
1995 | printf("/%%.4g/, 4214.2345\n"); | |
1996 | snprintf(holder, sizeof holder, "/%.4g/\n", 4214.2345); | |
1997 | asprintf(&h, "/%.4g/\n", 4214.2345); | |
1998 | printf("/%.4g/\n", 4214.2345); | |
1999 | printf("%s", holder); | |
2000 | printf("%s\n", h); | |
2001 | ||
2002 | printf("/%%'ld %%'ld/, 12345, 1234567\n"); | |
2003 | snprintf(holder, sizeof holder, "/%'ld %'ld/\n", 12345, 1234567); | |
2004 | asprintf(&h, "/%'ld %'ld/\n", 12345, 1234567); | |
2005 | printf("/%'ld %'ld/\n", 12345, 1234567); | |
2006 | printf("%s", holder); | |
2007 | printf("%s\n", h); | |
2008 | ||
2009 | printf("/%%'ld %%'ld/, 336, 3336\n"); | |
2010 | snprintf(holder, sizeof holder, "/%'ld %'ld/\n", 336, 3336); | |
2011 | asprintf(&h, "/%'ld %'ld/\n", 336, 3336); | |
2012 | printf("/%'ld %'ld/\n", 336, 3336); | |
2013 | printf("%s", holder); | |
2014 | printf("%s\n", h); | |
2015 | ||
2016 | printf("/%%'ld %%'ld/, -42786, -142786\n"); | |
2017 | snprintf(holder, sizeof holder, "/%'ld %'ld/\n", -42786, -142786); | |
2018 | asprintf(&h, "/%'ld %'ld/\n", -42786, -142786); | |
2019 | printf("/%'ld %'ld/\n", -42786, -142786); | |
2020 | printf("%s", holder); | |
2021 | printf("%s\n", h); | |
2022 | ||
2023 | printf("/%%'f %%'f/, 421.2345, 421234.56789\n"); | |
2024 | snprintf(holder, sizeof holder, "/%'f %'f/\n", 421.2345, 421234.56789); | |
2025 | asprintf(&h, "/%'f %'f/\n", 421.2345, 421234.56789); | |
2026 | printf("/%'f %'f/\n", 421.2345, 421234.56789); | |
2027 | printf("%s", holder); | |
2028 | printf("%s\n", h); | |
2029 | ||
2030 | printf("/%%'f %%'f/, -421.2345, -421234.56789\n"); | |
2031 | snprintf(holder, sizeof holder, "/%'f %'f/\n", -421.2345, -421234.56789); | |
2032 | asprintf(&h, "/%'f %'f/\n", -421.2345, -421234.56789); | |
2033 | printf("/%'f %'f/\n", -421.2345, -421234.56789); | |
2034 | printf("%s", holder); | |
2035 | printf("%s\n", h); | |
2036 | ||
2037 | printf("/%%'g %%'g/, 421.2345, 421234.56789\n"); | |
2038 | snprintf(holder, sizeof holder, "/%'g %'g/\n", 421.2345, 421234.56789); | |
2039 | asprintf(&h, "/%'g %'g/\n", 421.2345, 421234.56789); | |
2040 | printf("/%'g %'g/\n", 421.2345, 421234.56789); | |
2041 | printf("%s", holder); | |
2042 | printf("%s\n", h); | |
2043 | ||
2044 | printf("/%%'g %%'g/, -421.2345, -421234.56789\n"); | |
2045 | snprintf(holder, sizeof holder, "/%'g %'g/\n", -421.2345, -421234.56789); | |
2046 | asprintf(&h, "/%'g %'g/\n", -421.2345, -421234.56789); | |
2047 | printf("/%'g %'g/\n", -421.2345, -421234.56789); | |
2048 | printf("%s", holder); | |
2049 | printf("%s\n", h); | |
2050 | #endif | |
2051 | ||
2052 | printf("/%%'g/, 4213455.8392\n"); | |
2053 | snprintf(holder, sizeof holder, "/%'g/\n", 4213455.8392); | |
2054 | asprintf(&h, "/%'g/\n", 4213455.8392); | |
2055 | printf("/%'g/\n", 4213455.8392); | |
2056 | printf("%s", holder); | |
2057 | printf("%s\n", h); | |
2058 | ||
f73dda09 JA |
2059 | exit (0); |
2060 | } | |
2061 | #endif |