jcs.org
mutt stable branch with some hacks
1/**************************************************************
2 * Original:
3 * Patrick Powell Tue Apr 11 09:48:21 PDT 1995
4 * A bombproof version of doprnt (dopr) included.
5 * Sigh. This sort of thing is always nasty do deal with. Note that
6 * the version here does not include floating point...
7 *
8 * snprintf() is used instead of sprintf() as it does limit checks
9 * for string length. This covers a nasty loophole.
10 *
11 * The other functions are there to prevent NULL pointers from
12 * causing nast effects.
13 *
14 * More Recently:
15 * Brandon Long <blong@fiction.net> 9/15/96 for mutt 0.43
16 * This was ugly. It is still ugly. I opted out of floating point
17 * numbers, but the formatter understands just about everything
18 * from the normal C string format, at least as far as I can tell from
19 * the Solaris 2.5 printf(3S) man page.
20 *
21 * Brandon Long <blong@fiction.net> 10/22/97 for mutt 0.87.1
22 * Ok, added some minimal floating point support, which means this
23 * probably requires libm on most operating systems. Don't yet
24 * support the exponent (e,E) and sigfig (g,G). Also, fmtint()
25 * was pretty badly broken, it just wasn't being exercised in ways
26 * which showed it, so that's been fixed. Also, formatted the code
27 * to mutt conventions, and removed dead code left over from the
28 * original. Also, there is now a builtin-test, just compile with:
29 * gcc -DTEST_SNPRINTF -o snprintf snprintf.c -lm
30 * and run snprintf for results.
31 *
32 * Thomas Roessler <roessler@does-not-exist.org> 01/27/98 for mutt 0.89i
33 * The PGP code was using unsigned hexadecimal formats.
34 * Unfortunately, unsigned formats simply didn't work.
35 *
36 * Michael Elkins <me@mutt.org> 03/05/98 for mutt 0.90.8
37 * The original code assumed that both snprintf() and vsnprintf() were
38 * missing. Some systems only have snprintf() but not vsnprintf(), so
39 * the code is now broken down under HAVE_SNPRINTF and HAVE_VSNPRINTF.
40 *
41 * Holger Weiss <holger@zedat.fu-berlin.de> 07/23/06 for mutt 1.5.13
42 * A C99 compliant [v]snprintf() returns the number of characters that
43 * would have been written to a sufficiently sized buffer (excluding
44 * the '\0'). Mutt now relies on this behavior, but the original
45 * code simply returned the length of the resulting output string, so
46 * that's been fixed.
47 *
48 **************************************************************/
49
50#if HAVE_CONFIG_H
51# include "config.h"
52#endif
53
54#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)
55
56#include <string.h>
57# include <ctype.h>
58#include <sys/types.h>
59
60/* Define this as a fall through, HAVE_STDARG_H is probably already set */
61
62#define HAVE_VARARGS_H
63
64/* varargs declarations: */
65
66#if defined(HAVE_STDARG_H)
67# include <stdarg.h>
68# define HAVE_STDARGS /* let's hope that works everywhere (mj) */
69# define VA_LOCAL_DECL va_list ap
70# define VA_START(f) va_start(ap, f)
71# define VA_SHIFT(v,t) ; /* no-op for ANSI */
72# define VA_END va_end(ap)
73#else
74# if defined(HAVE_VARARGS_H)
75# include <varargs.h>
76# undef HAVE_STDARGS
77# define VA_LOCAL_DECL va_list ap
78# define VA_START(f) va_start(ap) /* f is ignored! */
79# define VA_SHIFT(v,t) v = va_arg(ap,t)
80# define VA_END va_end(ap)
81# else
82/*XX ** NO VARARGS ** XX*/
83# endif
84#endif
85
86/*int snprintf (char *str, size_t count, const char *fmt, ...);*/
87/*int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);*/
88
89static int dopr (char *buffer, size_t maxlen, const char *format,
90 va_list args);
91static void fmtstr (char *buffer, size_t *currlen, size_t maxlen,
92 char *value, int flags, int min, int max);
93static void fmtint (char *buffer, size_t *currlen, size_t maxlen,
94 long value, int base, int min, int max, int flags);
95static void fmtfp (char *buffer, size_t *currlen, size_t maxlen,
96 long double fvalue, int min, int max, int flags);
97static void dopr_outch (char *buffer, size_t *currlen, size_t maxlen, char c );
98
99/*
100 * dopr(): poor man's version of doprintf
101 */
102
103/* format read states */
104#define DP_S_DEFAULT 0
105#define DP_S_FLAGS 1
106#define DP_S_MIN 2
107#define DP_S_DOT 3
108#define DP_S_MAX 4
109#define DP_S_MOD 5
110#define DP_S_CONV 6
111#define DP_S_DONE 7
112
113/* format flags - Bits */
114#define DP_F_MINUS (1 << 0)
115#define DP_F_PLUS (1 << 1)
116#define DP_F_SPACE (1 << 2)
117#define DP_F_NUM (1 << 3)
118#define DP_F_ZERO (1 << 4)
119#define DP_F_UP (1 << 5)
120#define DP_F_UNSIGNED (1 << 6)
121
122/* Conversion Flags */
123#define DP_C_SHORT 1
124#define DP_C_LONG 2
125#define DP_C_LONGLONG 3
126#define DP_C_LDOUBLE 4
127
128#define char_to_int(p) (p - '0')
129#undef MAX
130#define MAX(p,q) ((p >= q) ? p : q)
131
132static int dopr (char *buffer, size_t maxlen, const char *format, va_list args)
133{
134 char ch;
135 long value;
136 long double fvalue;
137 char *strvalue;
138 int min;
139 int max;
140 int state;
141 int flags;
142 int cflags;
143 size_t currlen;
144
145 state = DP_S_DEFAULT;
146 currlen = flags = cflags = min = 0;
147 max = -1;
148 ch = *format++;
149
150 while (state != DP_S_DONE)
151 {
152 if (ch == '\0')
153 state = DP_S_DONE;
154
155 switch (state)
156 {
157 case DP_S_DEFAULT:
158 if (ch == '%')
159 state = DP_S_FLAGS;
160 else
161 dopr_outch (buffer, &currlen, maxlen, ch);
162 ch = *format++;
163 break;
164 case DP_S_FLAGS:
165 switch (ch)
166 {
167 case '-':
168 flags |= DP_F_MINUS;
169 ch = *format++;
170 break;
171 case '+':
172 flags |= DP_F_PLUS;
173 ch = *format++;
174 break;
175 case ' ':
176 flags |= DP_F_SPACE;
177 ch = *format++;
178 break;
179 case '#':
180 flags |= DP_F_NUM;
181 ch = *format++;
182 break;
183 case '0':
184 flags |= DP_F_ZERO;
185 ch = *format++;
186 break;
187 default:
188 state = DP_S_MIN;
189 break;
190 }
191 break;
192 case DP_S_MIN:
193 if (isdigit((unsigned char)ch))
194 {
195 min = 10*min + char_to_int (ch);
196 ch = *format++;
197 }
198 else if (ch == '*')
199 {
200 min = va_arg (args, int);
201 ch = *format++;
202 state = DP_S_DOT;
203 }
204 else
205 state = DP_S_DOT;
206 break;
207 case DP_S_DOT:
208 if (ch == '.')
209 {
210 state = DP_S_MAX;
211 ch = *format++;
212 }
213 else
214 state = DP_S_MOD;
215 break;
216 case DP_S_MAX:
217 if (isdigit((unsigned char)ch))
218 {
219 if (max < 0)
220 max = 0;
221 max = 10*max + char_to_int (ch);
222 ch = *format++;
223 }
224 else if (ch == '*')
225 {
226 max = va_arg (args, int);
227 ch = *format++;
228 state = DP_S_MOD;
229 }
230 else
231 state = DP_S_MOD;
232 break;
233 case DP_S_MOD:
234 switch (ch)
235 {
236 case 'h':
237 cflags = DP_C_SHORT;
238 ch = *format++;
239 break;
240 case 'l':
241 cflags = DP_C_LONG;
242 ch = *format++;
243 if (ch == 'l')
244 {
245 cflags = DP_C_LONGLONG;
246 ch = *format++;
247 }
248 break;
249 case 'L':
250 cflags = DP_C_LDOUBLE;
251 ch = *format++;
252 break;
253 default:
254 break;
255 }
256 state = DP_S_CONV;
257 break;
258 case DP_S_CONV:
259 switch (ch)
260 {
261 case 'd':
262 case 'i':
263 if (cflags == DP_C_SHORT)
264 value = va_arg (args, short int);
265 else if (cflags == DP_C_LONG)
266 value = va_arg (args, long int);
267 else if (cflags == DP_C_LONGLONG)
268 value = va_arg (args, long long int);
269 else
270 value = va_arg (args, int);
271 fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
272 break;
273 case 'o':
274 flags |= DP_F_UNSIGNED;
275 if (cflags == DP_C_SHORT)
276 value = va_arg (args, unsigned short int);
277 else if (cflags == DP_C_LONG)
278 value = va_arg (args, unsigned long int);
279 else if (cflags == DP_C_LONGLONG)
280 value = va_arg (args, unsigned long long int);
281 else
282 value = va_arg (args, unsigned int);
283 fmtint (buffer, &currlen, maxlen, value, 8, min, max, flags);
284 break;
285 case 'u':
286 flags |= DP_F_UNSIGNED;
287 if (cflags == DP_C_SHORT)
288 value = va_arg (args, unsigned short int);
289 else if (cflags == DP_C_LONG)
290 value = va_arg (args, unsigned long int);
291 else if (cflags == DP_C_LONGLONG)
292 value = va_arg (args, unsigned long long int);
293 else
294 value = va_arg (args, unsigned int);
295 fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
296 break;
297 case 'X':
298 flags |= DP_F_UP;
299 case 'x':
300 flags |= DP_F_UNSIGNED;
301 if (cflags == DP_C_SHORT)
302 value = va_arg (args, unsigned short int);
303 else if (cflags == DP_C_LONG)
304 value = va_arg (args, unsigned long int);
305 else if (cflags == DP_C_LONGLONG)
306 value = va_arg (args, unsigned long long int);
307 else
308 value = va_arg (args, unsigned int);
309 fmtint (buffer, &currlen, maxlen, value, 16, min, max, flags);
310 break;
311 case 'f':
312 if (cflags == DP_C_LDOUBLE)
313 fvalue = va_arg (args, long double);
314 else
315 fvalue = va_arg (args, double);
316 /* um, floating point? */
317 fmtfp (buffer, &currlen, maxlen, fvalue, min, max, flags);
318 break;
319 case 'E':
320 flags |= DP_F_UP;
321 case 'e':
322 if (cflags == DP_C_LDOUBLE)
323 fvalue = va_arg (args, long double);
324 else
325 fvalue = va_arg (args, double);
326 break;
327 case 'G':
328 flags |= DP_F_UP;
329 case 'g':
330 if (cflags == DP_C_LDOUBLE)
331 fvalue = va_arg (args, long double);
332 else
333 fvalue = va_arg (args, double);
334 break;
335 case 'c':
336 dopr_outch (buffer, &currlen, maxlen, va_arg (args, int));
337 break;
338 case 's':
339 strvalue = va_arg (args, char *);
340 fmtstr (buffer, &currlen, maxlen, strvalue, flags, min, max);
341 break;
342 case 'p':
343 flags |= DP_F_UNSIGNED;
344 strvalue = va_arg (args, void *);
345 fmtint (buffer, &currlen, maxlen, (long) strvalue, 16, min, max, flags);
346 break;
347 case 'n':
348 if (cflags == DP_C_SHORT)
349 {
350 short int *num;
351 num = va_arg (args, short int *);
352 *num = currlen;
353 }
354 else if (cflags == DP_C_LONG)
355 {
356 long int *num;
357 num = va_arg (args, long int *);
358 *num = currlen;
359 }
360 else if (cflags == DP_C_LONGLONG)
361 {
362 long long int *num;
363 num = va_arg (args, long long int *);
364 *num = currlen;
365 }
366 else
367 {
368 int *num;
369 num = va_arg (args, int *);
370 *num = currlen;
371 }
372 break;
373 case '%':
374 dopr_outch (buffer, &currlen, maxlen, ch);
375 break;
376 case 'w':
377 /* not supported yet, treat as next char */
378 ch = *format++;
379 break;
380 default:
381 /* Unknown, skip */
382 break;
383 }
384 ch = *format++;
385 state = DP_S_DEFAULT;
386 flags = cflags = min = 0;
387 max = -1;
388 break;
389 case DP_S_DONE:
390 break;
391 default:
392 /* hmm? */
393 break; /* some picky compilers need this */
394 }
395 }
396 if (currlen < maxlen - 1)
397 buffer[currlen] = '\0';
398 else
399 buffer[maxlen - 1] = '\0';
400
401 return (int)currlen;
402}
403
404static void fmtstr (char *buffer, size_t *currlen, size_t maxlen,
405 char *value, int flags, int min, int max)
406{
407 int padlen, strln; /* amount to pad */
408 int cnt = 0;
409
410 if (!value)
411 {
412 value = "<NULL>";
413 }
414
415 for (strln = 0; value[strln]; ++strln); /* strlen */
416 padlen = min - strln;
417 if (padlen < 0)
418 padlen = 0;
419 if (flags & DP_F_MINUS)
420 padlen = -padlen; /* Left Justify */
421
422 while ((padlen > 0) && (max == -1 || cnt < max))
423 {
424 dopr_outch (buffer, currlen, maxlen, ' ');
425 --padlen;
426 ++cnt;
427 }
428 while (*value && (max == -1 || cnt < max))
429 {
430 dopr_outch (buffer, currlen, maxlen, *value++);
431 ++cnt;
432 }
433 while ((padlen < 0) && (max == -1 || cnt < max))
434 {
435 dopr_outch (buffer, currlen, maxlen, ' ');
436 ++padlen;
437 ++cnt;
438 }
439}
440
441/* Have to handle DP_F_NUM (ie 0x and 0 alternates) */
442
443static void fmtint (char *buffer, size_t *currlen, size_t maxlen,
444 long value, int base, int min, int max, int flags)
445{
446 int signvalue = 0;
447 unsigned long uvalue;
448 char convert[20];
449 int place = 0;
450 int spadlen = 0; /* amount to space pad */
451 int zpadlen = 0; /* amount to zero pad */
452 int caps = 0;
453
454 if (max < 0)
455 max = 0;
456
457 uvalue = value;
458
459 if (!(flags & DP_F_UNSIGNED))
460 {
461 if ( value < 0 )
462 {
463 signvalue = '-';
464 uvalue = -value;
465 }
466 else
467 if (flags & DP_F_PLUS) /* Do a sign (+/i) */
468 signvalue = '+';
469 else
470 if (flags & DP_F_SPACE)
471 signvalue = ' ';
472 }
473
474 if (flags & DP_F_UP) caps = 1; /* Should characters be upper case? */
475
476 do
477 {
478 convert[place++] =
479 (caps? "0123456789ABCDEF":"0123456789abcdef")
480 [uvalue % (unsigned)base ];
481 uvalue = (uvalue / (unsigned)base );
482 } while (uvalue && (place < 20));
483 if (place == 20) place--;
484 convert[place] = 0;
485
486 zpadlen = max - place;
487 spadlen = min - MAX (max, place) - (signvalue ? 1 : 0);
488 if (zpadlen < 0) zpadlen = 0;
489 if (spadlen < 0) spadlen = 0;
490 if (flags & DP_F_ZERO)
491 {
492 zpadlen = MAX(zpadlen, spadlen);
493 spadlen = 0;
494 }
495 if (flags & DP_F_MINUS)
496 spadlen = -spadlen; /* Left Justifty */
497
498#ifdef DEBUG_SNPRINTF
499 dprint (1, (debugfile, "zpad: %d, spad: %d, min: %d, max: %d, place: %d\n",
500 zpadlen, spadlen, min, max, place));
501#endif
502
503 /* Spaces */
504 while (spadlen > 0)
505 {
506 dopr_outch (buffer, currlen, maxlen, ' ');
507 --spadlen;
508 }
509
510 /* Sign */
511 if (signvalue)
512 dopr_outch (buffer, currlen, maxlen, signvalue);
513
514 /* Zeros */
515 if (zpadlen > 0)
516 {
517 while (zpadlen > 0)
518 {
519 dopr_outch (buffer, currlen, maxlen, '0');
520 --zpadlen;
521 }
522 }
523
524 /* Digits */
525 while (place > 0)
526 dopr_outch (buffer, currlen, maxlen, convert[--place]);
527
528 /* Left Justified spaces */
529 while (spadlen < 0)
530 {
531 dopr_outch (buffer, currlen, maxlen, ' ');
532 ++spadlen;
533 }
534}
535
536static long double abs_val (long double value)
537{
538 long double result = value;
539
540 if (value < 0)
541 result = -value;
542
543 return result;
544}
545
546static long double pow10 (int exp)
547{
548 long double result = 1;
549
550 while (exp)
551 {
552 result *= 10;
553 exp--;
554 }
555
556 return result;
557}
558
559static long round (long double value)
560{
561 long intpart;
562
563 intpart = value;
564 value = value - intpart;
565 if (value >= 0.5)
566 intpart++;
567
568 return intpart;
569}
570
571static void fmtfp (char *buffer, size_t *currlen, size_t maxlen,
572 long double fvalue, int min, int max, int flags)
573{
574 int signvalue = 0;
575 long double ufvalue;
576 char iconvert[20];
577 char fconvert[20];
578 int iplace = 0;
579 int fplace = 0;
580 int padlen = 0; /* amount to pad */
581 int zpadlen = 0;
582 int caps = 0;
583 long intpart;
584 long fracpart;
585
586 /*
587 * AIX manpage says the default is 0, but Solaris says the default
588 * is 6, and sprintf on AIX defaults to 6
589 */
590 if (max < 0)
591 max = 6;
592
593 ufvalue = abs_val (fvalue);
594
595 if (fvalue < 0)
596 signvalue = '-';
597 else
598 if (flags & DP_F_PLUS) /* Do a sign (+/i) */
599 signvalue = '+';
600 else
601 if (flags & DP_F_SPACE)
602 signvalue = ' ';
603
604#if 0
605 if (flags & DP_F_UP) caps = 1; /* Should characters be upper case? */
606#endif
607
608 intpart = ufvalue;
609
610 /*
611 * Sorry, we only support 9 digits past the decimal because of our
612 * conversion method
613 */
614 if (max > 9)
615 max = 9;
616
617 /* We "cheat" by converting the fractional part to integer by
618 * multiplying by a factor of 10
619 */
620 fracpart = round ((pow10 (max)) * (ufvalue - intpart));
621
622 if (fracpart >= pow10 (max))
623 {
624 intpart++;
625 fracpart -= pow10 (max);
626 }
627
628#ifdef DEBUG_SNPRINTF
629 dprint (1, (debugfile, "fmtfp: %f =? %d.%d\n", fvalue, intpart, fracpart));
630#endif
631
632 /* Convert integer part */
633 do
634 {
635 iconvert[iplace++] =
636 (caps? "0123456789ABCDEF":"0123456789abcdef")[intpart % 10];
637 intpart = (intpart / 10);
638 } while (intpart && (iplace < 20));
639 if (iplace == 20) iplace--;
640 iconvert[iplace] = 0;
641
642 /* Convert fractional part */
643 do
644 {
645 fconvert[fplace++] =
646 (caps? "0123456789ABCDEF":"0123456789abcdef")[fracpart % 10];
647 fracpart = (fracpart / 10);
648 } while (fracpart && (fplace < 20));
649 if (fplace == 20) fplace--;
650 fconvert[fplace] = 0;
651
652 /* -1 for decimal point, another -1 if we are printing a sign */
653 padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0);
654 zpadlen = max - fplace;
655 if (zpadlen < 0)
656 zpadlen = 0;
657 if (padlen < 0)
658 padlen = 0;
659 if (flags & DP_F_MINUS)
660 padlen = -padlen; /* Left Justifty */
661
662 if ((flags & DP_F_ZERO) && (padlen > 0))
663 {
664 if (signvalue)
665 {
666 dopr_outch (buffer, currlen, maxlen, signvalue);
667 --padlen;
668 signvalue = 0;
669 }
670 while (padlen > 0)
671 {
672 dopr_outch (buffer, currlen, maxlen, '0');
673 --padlen;
674 }
675 }
676 while (padlen > 0)
677 {
678 dopr_outch (buffer, currlen, maxlen, ' ');
679 --padlen;
680 }
681 if (signvalue)
682 dopr_outch (buffer, currlen, maxlen, signvalue);
683
684 while (iplace > 0)
685 dopr_outch (buffer, currlen, maxlen, iconvert[--iplace]);
686
687 /*
688 * Decimal point. This should probably use locale to find the correct
689 * char to print out.
690 */
691 dopr_outch (buffer, currlen, maxlen, '.');
692
693 while (fplace > 0)
694 dopr_outch (buffer, currlen, maxlen, fconvert[--fplace]);
695
696 while (zpadlen > 0)
697 {
698 dopr_outch (buffer, currlen, maxlen, '0');
699 --zpadlen;
700 }
701
702 while (padlen < 0)
703 {
704 dopr_outch (buffer, currlen, maxlen, ' ');
705 ++padlen;
706 }
707}
708
709static void dopr_outch (char *buffer, size_t *currlen, size_t maxlen, char c)
710{
711 if (*currlen < maxlen)
712 buffer[*currlen] = c;
713 (*currlen)++;
714}
715#endif /* !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) */
716
717#ifndef HAVE_VSNPRINTF
718int vsnprintf (char *str, size_t count, const char *fmt, va_list args)
719{
720 str[0] = 0;
721 return(dopr(str, count, fmt, args));
722}
723#endif /* !HAVE_VSNPRINTF */
724
725#ifndef HAVE_SNPRINTF
726/* VARARGS3 */
727#ifdef HAVE_STDARGS
728int snprintf (char *str,size_t count,const char *fmt,...)
729#else
730int snprintf (va_alist) va_dcl
731#endif
732{
733#ifndef HAVE_STDARGS
734 char *str;
735 size_t count;
736 char *fmt;
737#endif
738 int len;
739 VA_LOCAL_DECL;
740
741 VA_START (fmt);
742 VA_SHIFT (str, char *);
743 VA_SHIFT (count, size_t );
744 VA_SHIFT (fmt, char *);
745 len = vsnprintf(str, count, fmt, ap);
746 VA_END;
747 return(len);
748}
749
750#ifdef TEST_SNPRINTF
751#ifndef LONG_STRING
752#define LONG_STRING 1024
753#endif
754int main (void)
755{
756 char buf1[LONG_STRING];
757 char buf2[LONG_STRING];
758 char *fp_fmt[] = {
759 "%-1.5f",
760 "%1.5f",
761 "%123.9f",
762 "%10.5f",
763 "% 10.5f",
764 "%+22.9f",
765 "%+4.9f",
766 "%01.3f",
767 "%4f",
768 "%3.1f",
769 "%3.2f",
770 NULL
771 };
772 double fp_nums[] = { -1.5, 134.21, 91340.2, 341.1234, 0203.9, 0.96, 0.996,
773 0.9996, 1.996, 4.136, 0};
774 char *int_fmt[] = {
775 "%-1.5d",
776 "%1.5d",
777 "%123.9d",
778 "%5.5d",
779 "%10.5d",
780 "% 10.5d",
781 "%+22.33d",
782 "%01.3d",
783 "%4d",
784 NULL
785 };
786 long int_nums[] = { -1, 134, 91340, 341, 0203, 0};
787 int x, y;
788 int fail = 0;
789 int num = 0;
790
791 printf ("Testing snprintf format codes against system sprintf...\n");
792
793 for (x = 0; fp_fmt[x] != NULL ; x++)
794 for (y = 0; fp_nums[y] != 0 ; y++)
795 {
796 snprintf (buf1, sizeof (buf1), fp_fmt[x], fp_nums[y]);
797 sprintf (buf2, fp_fmt[x], fp_nums[y]);
798 if (strcmp (buf1, buf2))
799 {
800 printf("snprintf doesn't match Format: %s\n\tsnprintf = %s\n\tsprintf = %s\n", /* __SPRINTF_CHECKED__ */
801 fp_fmt[x], buf1, buf2);
802 fail++;
803 }
804 num++;
805 }
806
807 for (x = 0; int_fmt[x] != NULL ; x++)
808 for (y = 0; int_nums[y] != 0 ; y++)
809 {
810 snprintf (buf1, sizeof (buf1), int_fmt[x], int_nums[y]);
811 sprintf (buf2, int_fmt[x], int_nums[y]);
812 if (strcmp (buf1, buf2))
813 {
814 printf("snprintf doesn't match Format: %s\n\tsnprintf = %s\n\tsprintf = %s\n", /* __SPRINTF_CHECKED__ */
815 int_fmt[x], buf1, buf2);
816 fail++;
817 }
818 num++;
819 }
820 printf ("%d tests failed out of %d.\n", fail, num);
821}
822#endif /* SNPRINTF_TEST */
823
824#endif /* !HAVE_SNPRINTF */