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Commit | Line | Data |
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6a9b3198 | 1 | /* |
2 | * Copyright Patrick Powell 1995 | |
3 | * This code is based on code written by Patrick Powell (papowell@astart.com) | |
4 | * It may be used for any purpose as long as this notice remains intact | |
5 | * on all source code distributions | |
6 | */ | |
7 | ||
3c0ef626 | 8 | /************************************************************** |
9 | * Original: | |
10 | * Patrick Powell Tue Apr 11 09:48:21 PDT 1995 | |
11 | * A bombproof version of doprnt (dopr) included. | |
12 | * Sigh. This sort of thing is always nasty do deal with. Note that | |
13 | * the version here does not include floating point... | |
14 | * | |
15 | * snprintf() is used instead of sprintf() as it does limit checks | |
16 | * for string length. This covers a nasty loophole. | |
17 | * | |
18 | * The other functions are there to prevent NULL pointers from | |
19 | * causing nast effects. | |
20 | * | |
21 | * More Recently: | |
22 | * Brandon Long <blong@fiction.net> 9/15/96 for mutt 0.43 | |
23 | * This was ugly. It is still ugly. I opted out of floating point | |
24 | * numbers, but the formatter understands just about everything | |
25 | * from the normal C string format, at least as far as I can tell from | |
26 | * the Solaris 2.5 printf(3S) man page. | |
27 | * | |
28 | * Brandon Long <blong@fiction.net> 10/22/97 for mutt 0.87.1 | |
29 | * Ok, added some minimal floating point support, which means this | |
30 | * probably requires libm on most operating systems. Don't yet | |
31 | * support the exponent (e,E) and sigfig (g,G). Also, fmtint() | |
32 | * was pretty badly broken, it just wasn't being exercised in ways | |
33 | * which showed it, so that's been fixed. Also, formated the code | |
34 | * to mutt conventions, and removed dead code left over from the | |
35 | * original. Also, there is now a builtin-test, just compile with: | |
36 | * gcc -DTEST_SNPRINTF -o snprintf snprintf.c -lm | |
37 | * and run snprintf for results. | |
38 | * | |
39 | * Thomas Roessler <roessler@guug.de> 01/27/98 for mutt 0.89i | |
40 | * The PGP code was using unsigned hexadecimal formats. | |
41 | * Unfortunately, unsigned formats simply didn't work. | |
42 | * | |
43 | * Michael Elkins <me@cs.hmc.edu> 03/05/98 for mutt 0.90.8 | |
44 | * The original code assumed that both snprintf() and vsnprintf() were | |
45 | * missing. Some systems only have snprintf() but not vsnprintf(), so | |
46 | * the code is now broken down under HAVE_SNPRINTF and HAVE_VSNPRINTF. | |
47 | * | |
48 | * Ben Lindstrom <mouring@eviladmin.org> 09/27/00 for OpenSSH | |
49 | * Welcome to the world of %lld and %qd support. With other | |
50 | * long long support. This is needed for sftp-server to work | |
51 | * right. | |
52 | * | |
53 | * Ben Lindstrom <mouring@eviladmin.org> 02/12/01 for OpenSSH | |
54 | * Removed all hint of VARARGS stuff and banished it to the void, | |
55 | * and did a bit of KNF style work to make things a bit more | |
56 | * acceptable. Consider stealing from mutt or enlightenment. | |
57 | **************************************************************/ | |
58 | ||
59 | #include "includes.h" | |
60 | ||
61 | RCSID("$Id$"); | |
62 | ||
63 | #if defined(BROKEN_SNPRINTF) /* For those with broken snprintf() */ | |
64 | # undef HAVE_SNPRINTF | |
65 | # undef HAVE_VSNPRINTF | |
66 | #endif | |
67 | ||
68 | #if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) | |
69 | ||
70 | static void | |
71 | dopr(char *buffer, size_t maxlen, const char *format, va_list args); | |
72 | ||
73 | static void | |
74 | fmtstr(char *buffer, size_t *currlen, size_t maxlen, char *value, int flags, | |
0fff78ff | 75 | int min, int max); |
3c0ef626 | 76 | |
77 | static void | |
78 | fmtint(char *buffer, size_t *currlen, size_t maxlen, long value, int base, | |
0fff78ff | 79 | int min, int max, int flags); |
3c0ef626 | 80 | |
81 | static void | |
82 | fmtfp(char *buffer, size_t *currlen, size_t maxlen, long double fvalue, | |
0fff78ff | 83 | int min, int max, int flags); |
3c0ef626 | 84 | |
85 | static void | |
86 | dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c); | |
87 | ||
88 | /* | |
89 | * dopr(): poor man's version of doprintf | |
90 | */ | |
91 | ||
92 | /* format read states */ | |
93 | #define DP_S_DEFAULT 0 | |
94 | #define DP_S_FLAGS 1 | |
95 | #define DP_S_MIN 2 | |
96 | #define DP_S_DOT 3 | |
97 | #define DP_S_MAX 4 | |
98 | #define DP_S_MOD 5 | |
99 | #define DP_S_CONV 6 | |
100 | #define DP_S_DONE 7 | |
101 | ||
102 | /* format flags - Bits */ | |
103 | #define DP_F_MINUS (1 << 0) | |
104 | #define DP_F_PLUS (1 << 1) | |
105 | #define DP_F_SPACE (1 << 2) | |
106 | #define DP_F_NUM (1 << 3) | |
107 | #define DP_F_ZERO (1 << 4) | |
108 | #define DP_F_UP (1 << 5) | |
109 | #define DP_F_UNSIGNED (1 << 6) | |
110 | ||
111 | /* Conversion Flags */ | |
112 | #define DP_C_SHORT 1 | |
113 | #define DP_C_LONG 2 | |
114 | #define DP_C_LDOUBLE 3 | |
115 | #define DP_C_LONG_LONG 4 | |
116 | ||
117 | #define char_to_int(p) (p - '0') | |
118 | #define abs_val(p) (p < 0 ? -p : p) | |
119 | ||
120 | ||
121 | static void | |
122 | dopr(char *buffer, size_t maxlen, const char *format, va_list args) | |
123 | { | |
0fff78ff | 124 | char *strvalue, ch; |
3c0ef626 | 125 | long value; |
126 | long double fvalue; | |
0fff78ff | 127 | int min = 0, max = -1, state = DP_S_DEFAULT, flags = 0, cflags = 0; |
3c0ef626 | 128 | size_t currlen = 0; |
129 | ||
130 | ch = *format++; | |
131 | ||
132 | while (state != DP_S_DONE) { | |
133 | if ((ch == '\0') || (currlen >= maxlen)) | |
134 | state = DP_S_DONE; | |
135 | ||
136 | switch(state) { | |
0fff78ff | 137 | case DP_S_DEFAULT: |
138 | if (ch == '%') | |
139 | state = DP_S_FLAGS; | |
140 | else | |
141 | dopr_outch(buffer, &currlen, maxlen, ch); | |
142 | ch = *format++; | |
143 | break; | |
144 | case DP_S_FLAGS: | |
145 | switch (ch) { | |
146 | case '-': | |
147 | flags |= DP_F_MINUS; | |
3c0ef626 | 148 | ch = *format++; |
149 | break; | |
0fff78ff | 150 | case '+': |
151 | flags |= DP_F_PLUS; | |
152 | ch = *format++; | |
3c0ef626 | 153 | break; |
0fff78ff | 154 | case ' ': |
155 | flags |= DP_F_SPACE; | |
156 | ch = *format++; | |
3c0ef626 | 157 | break; |
0fff78ff | 158 | case '#': |
159 | flags |= DP_F_NUM; | |
160 | ch = *format++; | |
3c0ef626 | 161 | break; |
0fff78ff | 162 | case '0': |
163 | flags |= DP_F_ZERO; | |
164 | ch = *format++; | |
3c0ef626 | 165 | break; |
0fff78ff | 166 | default: |
167 | state = DP_S_MIN; | |
3c0ef626 | 168 | break; |
0fff78ff | 169 | } |
170 | break; | |
171 | case DP_S_MIN: | |
172 | if (isdigit((unsigned char)ch)) { | |
173 | min = 10 * min + char_to_int (ch); | |
174 | ch = *format++; | |
175 | } else if (ch == '*') { | |
176 | min = va_arg (args, int); | |
177 | ch = *format++; | |
178 | state = DP_S_DOT; | |
179 | } else | |
180 | state = DP_S_DOT; | |
181 | break; | |
182 | case DP_S_DOT: | |
183 | if (ch == '.') { | |
184 | state = DP_S_MAX; | |
185 | ch = *format++; | |
186 | } else | |
187 | state = DP_S_MOD; | |
188 | break; | |
189 | case DP_S_MAX: | |
190 | if (isdigit((unsigned char)ch)) { | |
191 | if (max < 0) | |
192 | max = 0; | |
193 | max = 10 * max + char_to_int(ch); | |
194 | ch = *format++; | |
195 | } else if (ch == '*') { | |
196 | max = va_arg (args, int); | |
197 | ch = *format++; | |
198 | state = DP_S_MOD; | |
199 | } else | |
200 | state = DP_S_MOD; | |
201 | break; | |
202 | case DP_S_MOD: | |
203 | switch (ch) { | |
204 | case 'h': | |
205 | cflags = DP_C_SHORT; | |
206 | ch = *format++; | |
207 | break; | |
208 | case 'l': | |
209 | cflags = DP_C_LONG; | |
210 | ch = *format++; | |
211 | if (ch == 'l') { | |
212 | cflags = DP_C_LONG_LONG; | |
213 | ch = *format++; | |
3c0ef626 | 214 | } |
0fff78ff | 215 | break; |
216 | case 'q': | |
217 | cflags = DP_C_LONG_LONG; | |
218 | ch = *format++; | |
219 | break; | |
220 | case 'L': | |
221 | cflags = DP_C_LDOUBLE; | |
3c0ef626 | 222 | ch = *format++; |
3c0ef626 | 223 | break; |
0fff78ff | 224 | default: |
225 | break; | |
226 | } | |
227 | state = DP_S_CONV; | |
228 | break; | |
229 | case DP_S_CONV: | |
230 | switch (ch) { | |
231 | case 'd': | |
232 | case 'i': | |
233 | if (cflags == DP_C_SHORT) | |
234 | value = va_arg(args, int); | |
235 | else if (cflags == DP_C_LONG) | |
236 | value = va_arg(args, long int); | |
237 | else if (cflags == DP_C_LONG_LONG) | |
238 | value = va_arg (args, long long); | |
239 | else | |
240 | value = va_arg (args, int); | |
241 | fmtint(buffer, &currlen, maxlen, value, 10, min, max, flags); | |
242 | break; | |
243 | case 'o': | |
244 | flags |= DP_F_UNSIGNED; | |
245 | if (cflags == DP_C_SHORT) | |
246 | value = va_arg(args, unsigned int); | |
247 | else if (cflags == DP_C_LONG) | |
248 | value = va_arg(args, unsigned long int); | |
249 | else if (cflags == DP_C_LONG_LONG) | |
250 | value = va_arg(args, unsigned long long); | |
251 | else | |
252 | value = va_arg(args, unsigned int); | |
253 | fmtint(buffer, &currlen, maxlen, value, 8, min, max, flags); | |
3c0ef626 | 254 | break; |
0fff78ff | 255 | case 'u': |
256 | flags |= DP_F_UNSIGNED; | |
257 | if (cflags == DP_C_SHORT) | |
258 | value = va_arg(args, unsigned int); | |
259 | else if (cflags == DP_C_LONG) | |
260 | value = va_arg(args, unsigned long int); | |
261 | else if (cflags == DP_C_LONG_LONG) | |
262 | value = va_arg(args, unsigned long long); | |
263 | else | |
264 | value = va_arg(args, unsigned int); | |
265 | fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags); | |
266 | break; | |
267 | case 'X': | |
268 | flags |= DP_F_UP; | |
269 | case 'x': | |
270 | flags |= DP_F_UNSIGNED; | |
271 | if (cflags == DP_C_SHORT) | |
272 | value = va_arg(args, unsigned int); | |
273 | else if (cflags == DP_C_LONG) | |
274 | value = va_arg(args, unsigned long int); | |
275 | else if (cflags == DP_C_LONG_LONG) | |
276 | value = va_arg(args, unsigned long long); | |
277 | else | |
278 | value = va_arg(args, unsigned int); | |
279 | fmtint(buffer, &currlen, maxlen, value, 16, min, max, flags); | |
280 | break; | |
281 | case 'f': | |
282 | if (cflags == DP_C_LDOUBLE) | |
283 | fvalue = va_arg(args, long double); | |
284 | else | |
285 | fvalue = va_arg(args, double); | |
286 | /* um, floating point? */ | |
287 | fmtfp(buffer, &currlen, maxlen, fvalue, min, max, flags); | |
288 | break; | |
289 | case 'E': | |
290 | flags |= DP_F_UP; | |
291 | case 'e': | |
292 | if (cflags == DP_C_LDOUBLE) | |
293 | fvalue = va_arg(args, long double); | |
294 | else | |
295 | fvalue = va_arg(args, double); | |
296 | break; | |
297 | case 'G': | |
298 | flags |= DP_F_UP; | |
299 | case 'g': | |
300 | if (cflags == DP_C_LDOUBLE) | |
301 | fvalue = va_arg(args, long double); | |
302 | else | |
303 | fvalue = va_arg(args, double); | |
304 | break; | |
305 | case 'c': | |
306 | dopr_outch(buffer, &currlen, maxlen, va_arg(args, int)); | |
307 | break; | |
308 | case 's': | |
309 | strvalue = va_arg(args, char *); | |
310 | if (max < 0) | |
311 | max = maxlen; /* ie, no max */ | |
312 | fmtstr(buffer, &currlen, maxlen, strvalue, flags, min, max); | |
313 | break; | |
314 | case 'p': | |
315 | strvalue = va_arg(args, void *); | |
316 | fmtint(buffer, &currlen, maxlen, (long) strvalue, 16, min, max, flags); | |
317 | break; | |
318 | case 'n': | |
319 | if (cflags == DP_C_SHORT) { | |
320 | short int *num; | |
321 | num = va_arg(args, short int *); | |
322 | *num = currlen; | |
323 | } else if (cflags == DP_C_LONG) { | |
324 | long int *num; | |
325 | num = va_arg(args, long int *); | |
326 | *num = currlen; | |
327 | } else if (cflags == DP_C_LONG_LONG) { | |
328 | long long *num; | |
329 | num = va_arg(args, long long *); | |
330 | *num = currlen; | |
331 | } else { | |
332 | int *num; | |
333 | num = va_arg(args, int *); | |
334 | *num = currlen; | |
335 | } | |
336 | break; | |
337 | case '%': | |
338 | dopr_outch(buffer, &currlen, maxlen, ch); | |
339 | break; | |
340 | case 'w': /* not supported yet, treat as next char */ | |
341 | ch = *format++; | |
342 | break; | |
343 | default: /* Unknown, skip */ | |
344 | break; | |
345 | } | |
346 | ch = *format++; | |
347 | state = DP_S_DEFAULT; | |
348 | flags = cflags = min = 0; | |
349 | max = -1; | |
350 | break; | |
351 | case DP_S_DONE: | |
352 | break; | |
353 | default: /* hmm? */ | |
354 | break; /* some picky compilers need this */ | |
3c0ef626 | 355 | } |
356 | } | |
357 | if (currlen < maxlen - 1) | |
358 | buffer[currlen] = '\0'; | |
359 | else | |
360 | buffer[maxlen - 1] = '\0'; | |
361 | } | |
362 | ||
363 | static void | |
364 | fmtstr(char *buffer, size_t *currlen, size_t maxlen, | |
0fff78ff | 365 | char *value, int flags, int min, int max) |
3c0ef626 | 366 | { |
0fff78ff | 367 | int cnt = 0, padlen, strln; /* amount to pad */ |
3c0ef626 | 368 | |
369 | if (value == 0) | |
370 | value = "<NULL>"; | |
371 | ||
372 | for (strln = 0; value[strln]; ++strln); /* strlen */ | |
373 | padlen = min - strln; | |
374 | if (padlen < 0) | |
375 | padlen = 0; | |
376 | if (flags & DP_F_MINUS) | |
377 | padlen = -padlen; /* Left Justify */ | |
378 | ||
379 | while ((padlen > 0) && (cnt < max)) { | |
380 | dopr_outch(buffer, currlen, maxlen, ' '); | |
381 | --padlen; | |
382 | ++cnt; | |
383 | } | |
384 | while (*value && (cnt < max)) { | |
385 | dopr_outch(buffer, currlen, maxlen, *value++); | |
386 | ++cnt; | |
387 | } | |
388 | while ((padlen < 0) && (cnt < max)) { | |
389 | dopr_outch(buffer, currlen, maxlen, ' '); | |
390 | ++padlen; | |
391 | ++cnt; | |
392 | } | |
393 | } | |
394 | ||
395 | /* Have to handle DP_F_NUM (ie 0x and 0 alternates) */ | |
396 | ||
397 | static void | |
398 | fmtint(char *buffer, size_t *currlen, size_t maxlen, | |
0fff78ff | 399 | long value, int base, int min, int max, int flags) |
3c0ef626 | 400 | { |
401 | unsigned long uvalue; | |
402 | char convert[20]; | |
0fff78ff | 403 | int signvalue = 0, place = 0, caps = 0; |
3c0ef626 | 404 | int spadlen = 0; /* amount to space pad */ |
405 | int zpadlen = 0; /* amount to zero pad */ | |
3c0ef626 | 406 | |
407 | if (max < 0) | |
408 | max = 0; | |
409 | ||
410 | uvalue = value; | |
411 | ||
412 | if (!(flags & DP_F_UNSIGNED)) { | |
413 | if (value < 0) { | |
414 | signvalue = '-'; | |
415 | uvalue = -value; | |
416 | } else if (flags & DP_F_PLUS) /* Do a sign (+/i) */ | |
417 | signvalue = '+'; | |
418 | else if (flags & DP_F_SPACE) | |
419 | signvalue = ' '; | |
420 | } | |
421 | ||
422 | if (flags & DP_F_UP) | |
423 | caps = 1; /* Should characters be upper case? */ | |
3c0ef626 | 424 | do { |
425 | convert[place++] = | |
0fff78ff | 426 | (caps ? "0123456789ABCDEF" : "0123456789abcdef") |
427 | [uvalue % (unsigned)base]; | |
3c0ef626 | 428 | uvalue = (uvalue / (unsigned)base ); |
429 | } while (uvalue && (place < 20)); | |
430 | if (place == 20) | |
431 | place--; | |
432 | convert[place] = 0; | |
433 | ||
434 | zpadlen = max - place; | |
435 | spadlen = min - MAX (max, place) - (signvalue ? 1 : 0); | |
436 | if (zpadlen < 0) | |
437 | zpadlen = 0; | |
438 | if (spadlen < 0) | |
439 | spadlen = 0; | |
440 | if (flags & DP_F_ZERO) { | |
441 | zpadlen = MAX(zpadlen, spadlen); | |
442 | spadlen = 0; | |
443 | } | |
444 | if (flags & DP_F_MINUS) | |
445 | spadlen = -spadlen; /* Left Justifty */ | |
446 | ||
3c0ef626 | 447 | /* Spaces */ |
448 | while (spadlen > 0) { | |
449 | dopr_outch(buffer, currlen, maxlen, ' '); | |
450 | --spadlen; | |
451 | } | |
452 | ||
453 | /* Sign */ | |
454 | if (signvalue) | |
455 | dopr_outch(buffer, currlen, maxlen, signvalue); | |
456 | ||
457 | /* Zeros */ | |
458 | if (zpadlen > 0) { | |
459 | while (zpadlen > 0) { | |
460 | dopr_outch(buffer, currlen, maxlen, '0'); | |
461 | --zpadlen; | |
462 | } | |
463 | } | |
464 | ||
465 | /* Digits */ | |
466 | while (place > 0) | |
467 | dopr_outch(buffer, currlen, maxlen, convert[--place]); | |
468 | ||
469 | /* Left Justified spaces */ | |
470 | while (spadlen < 0) { | |
471 | dopr_outch (buffer, currlen, maxlen, ' '); | |
472 | ++spadlen; | |
473 | } | |
474 | } | |
475 | ||
476 | static long double | |
477 | pow10(int exp) | |
478 | { | |
479 | long double result = 1; | |
480 | ||
481 | while (exp) { | |
482 | result *= 10; | |
483 | exp--; | |
484 | } | |
485 | ||
486 | return result; | |
487 | } | |
488 | ||
489 | static long | |
490 | round(long double value) | |
491 | { | |
492 | long intpart = value; | |
493 | ||
494 | value -= intpart; | |
495 | if (value >= 0.5) | |
496 | intpart++; | |
497 | ||
498 | return intpart; | |
499 | } | |
500 | ||
501 | static void | |
502 | fmtfp(char *buffer, size_t *currlen, size_t maxlen, long double fvalue, | |
503 | int min, int max, int flags) | |
504 | { | |
0fff78ff | 505 | char iconvert[20], fconvert[20]; |
506 | int signvalue = 0, iplace = 0, fplace = 0; | |
3c0ef626 | 507 | int padlen = 0; /* amount to pad */ |
0fff78ff | 508 | int zpadlen = 0, caps = 0; |
509 | long intpart, fracpart; | |
3c0ef626 | 510 | long double ufvalue; |
511 | ||
512 | /* | |
513 | * AIX manpage says the default is 0, but Solaris says the default | |
514 | * is 6, and sprintf on AIX defaults to 6 | |
515 | */ | |
516 | if (max < 0) | |
517 | max = 6; | |
518 | ||
519 | ufvalue = abs_val(fvalue); | |
520 | ||
521 | if (fvalue < 0) | |
522 | signvalue = '-'; | |
523 | else if (flags & DP_F_PLUS) /* Do a sign (+/i) */ | |
524 | signvalue = '+'; | |
525 | else if (flags & DP_F_SPACE) | |
526 | signvalue = ' '; | |
527 | ||
528 | intpart = ufvalue; | |
529 | ||
530 | /* | |
531 | * Sorry, we only support 9 digits past the decimal because of our | |
532 | * conversion method | |
533 | */ | |
534 | if (max > 9) | |
535 | max = 9; | |
536 | ||
537 | /* We "cheat" by converting the fractional part to integer by | |
538 | * multiplying by a factor of 10 | |
539 | */ | |
540 | fracpart = round((pow10 (max)) * (ufvalue - intpart)); | |
541 | ||
542 | if (fracpart >= pow10 (max)) { | |
543 | intpart++; | |
544 | fracpart -= pow10 (max); | |
545 | } | |
546 | ||
547 | /* Convert integer part */ | |
548 | do { | |
549 | iconvert[iplace++] = | |
0fff78ff | 550 | (caps ? "0123456789ABCDEF" : "0123456789abcdef") |
551 | [intpart % 10]; | |
3c0ef626 | 552 | intpart = (intpart / 10); |
553 | } while(intpart && (iplace < 20)); | |
554 | if (iplace == 20) | |
555 | iplace--; | |
556 | iconvert[iplace] = 0; | |
557 | ||
558 | /* Convert fractional part */ | |
559 | do { | |
560 | fconvert[fplace++] = | |
0fff78ff | 561 | (caps ? "0123456789ABCDEF" : "0123456789abcdef") |
562 | [fracpart % 10]; | |
3c0ef626 | 563 | fracpart = (fracpart / 10); |
564 | } while(fracpart && (fplace < 20)); | |
565 | if (fplace == 20) | |
566 | fplace--; | |
567 | fconvert[fplace] = 0; | |
568 | ||
569 | /* -1 for decimal point, another -1 if we are printing a sign */ | |
570 | padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0); | |
571 | zpadlen = max - fplace; | |
572 | if (zpadlen < 0) | |
573 | zpadlen = 0; | |
574 | if (padlen < 0) | |
575 | padlen = 0; | |
576 | if (flags & DP_F_MINUS) | |
577 | padlen = -padlen; /* Left Justifty */ | |
578 | ||
579 | if ((flags & DP_F_ZERO) && (padlen > 0)) { | |
580 | if (signvalue) { | |
581 | dopr_outch(buffer, currlen, maxlen, signvalue); | |
582 | --padlen; | |
583 | signvalue = 0; | |
584 | } | |
585 | while (padlen > 0) { | |
586 | dopr_outch(buffer, currlen, maxlen, '0'); | |
587 | --padlen; | |
588 | } | |
589 | } | |
590 | while (padlen > 0) { | |
591 | dopr_outch(buffer, currlen, maxlen, ' '); | |
592 | --padlen; | |
593 | } | |
594 | if (signvalue) | |
595 | dopr_outch(buffer, currlen, maxlen, signvalue); | |
596 | ||
597 | while (iplace > 0) | |
598 | dopr_outch(buffer, currlen, maxlen, iconvert[--iplace]); | |
599 | ||
600 | /* | |
0fff78ff | 601 | * Decimal point. This should probably use locale to find the |
602 | * correct char to print out. | |
3c0ef626 | 603 | */ |
604 | dopr_outch(buffer, currlen, maxlen, '.'); | |
605 | ||
606 | while (fplace > 0) | |
607 | dopr_outch(buffer, currlen, maxlen, fconvert[--fplace]); | |
608 | ||
609 | while (zpadlen > 0) { | |
610 | dopr_outch(buffer, currlen, maxlen, '0'); | |
611 | --zpadlen; | |
612 | } | |
613 | ||
614 | while (padlen < 0) { | |
615 | dopr_outch(buffer, currlen, maxlen, ' '); | |
616 | ++padlen; | |
617 | } | |
618 | } | |
619 | ||
620 | static void | |
621 | dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c) | |
622 | { | |
623 | if (*currlen < maxlen) | |
624 | buffer[(*currlen)++] = c; | |
625 | } | |
626 | #endif /* !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) */ | |
627 | ||
628 | #ifndef HAVE_VSNPRINTF | |
629 | int | |
630 | vsnprintf(char *str, size_t count, const char *fmt, va_list args) | |
631 | { | |
632 | str[0] = 0; | |
633 | dopr(str, count, fmt, args); | |
634 | ||
635 | return(strlen(str)); | |
636 | } | |
637 | #endif /* !HAVE_VSNPRINTF */ | |
638 | ||
639 | #ifndef HAVE_SNPRINTF | |
640 | int | |
641 | snprintf(char *str,size_t count,const char *fmt,...) | |
642 | { | |
643 | va_list ap; | |
644 | ||
645 | va_start(ap, fmt); | |
646 | (void) vsnprintf(str, count, fmt, ap); | |
647 | va_end(ap); | |
648 | ||
649 | return(strlen(str)); | |
650 | } | |
651 | ||
3c0ef626 | 652 | #endif /* !HAVE_SNPRINTF */ |