]>
Commit | Line | Data |
---|---|---|
1f2f436a A |
1 | /*- |
2 | * Copyright (c) 1990, 1993 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * Chris Torek. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 4. Neither the name of the University nor the names of its contributors | |
17 | * may be used to endorse or promote products derived from this software | |
18 | * without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
30 | * SUCH DAMAGE. | |
31 | */ | |
32 | ||
33 | #if defined(LIBC_SCCS) && !defined(lint) | |
34 | static char sccsid[] = "@(#)vfprintf.c 8.1 (Berkeley) 6/4/93"; | |
35 | #endif /* LIBC_SCCS and not lint */ | |
36 | #include <sys/cdefs.h> | |
37 | __FBSDID("$FreeBSD: src/lib/libc/stdio/printf-pos.c,v 1.6 2009/03/02 04:07:58 das Exp $"); | |
38 | ||
39 | /* | |
40 | * This is the code responsible for handling positional arguments | |
41 | * (%m$ and %m$.n$) for vfprintf() and vfwprintf(). | |
42 | */ | |
43 | ||
44 | #include "namespace.h" | |
45 | #include <sys/types.h> | |
46 | ||
47 | #include <stdarg.h> | |
48 | #include <stddef.h> | |
49 | #include <stdint.h> | |
50 | #include <stdio.h> | |
51 | #include <stdlib.h> | |
52 | #include <string.h> | |
53 | #include <wchar.h> | |
54 | ||
55 | #include "un-namespace.h" | |
56 | #include "printflocal.h" | |
57 | ||
58 | /* | |
59 | * Type ids for argument type table. | |
60 | */ | |
61 | enum typeid { | |
62 | T_UNUSED, TP_SHORT, T_INT, T_U_INT, TP_INT, | |
63 | T_LONG, T_U_LONG, TP_LONG, T_LLONG, T_U_LLONG, TP_LLONG, | |
64 | T_PTRDIFFT, TP_PTRDIFFT, T_SSIZET, T_SIZET, TP_SSIZET, | |
65 | T_INTMAXT, T_UINTMAXT, TP_INTMAXT, TP_VOID, TP_CHAR, TP_SCHAR, | |
ad3c9f2a A |
66 | T_DOUBLE, T_LONG_DOUBLE, T_WINT, TP_WCHAR, |
67 | #ifdef VECTORS | |
68 | T_VECTOR, | |
69 | #endif | |
1f2f436a A |
70 | }; |
71 | ||
72 | /* An expandable array of types. */ | |
73 | struct typetable { | |
74 | enum typeid *table; /* table of types */ | |
75 | enum typeid stattable[STATIC_ARG_TBL_SIZE]; | |
76 | int tablesize; /* current size of type table */ | |
77 | int tablemax; /* largest used index in table */ | |
78 | int nextarg; /* 1-based argument index */ | |
79 | }; | |
80 | ||
81 | static int __grow_type_table(struct typetable *); | |
82 | static void build_arg_table (struct typetable *, va_list, union arg **); | |
83 | ||
84 | /* | |
85 | * Initialize a struct typetable. | |
86 | */ | |
87 | static inline void | |
88 | inittypes(struct typetable *types) | |
89 | { | |
90 | int n; | |
91 | ||
92 | types->table = types->stattable; | |
93 | types->tablesize = STATIC_ARG_TBL_SIZE; | |
94 | types->tablemax = 0; | |
95 | types->nextarg = 1; | |
96 | for (n = 0; n < STATIC_ARG_TBL_SIZE; n++) | |
97 | types->table[n] = T_UNUSED; | |
98 | } | |
99 | ||
100 | /* | |
101 | * struct typetable destructor. | |
102 | */ | |
103 | static inline void | |
104 | freetypes(struct typetable *types) | |
105 | { | |
106 | ||
107 | if (types->table != types->stattable) | |
108 | free (types->table); | |
109 | } | |
110 | ||
111 | /* | |
112 | * Ensure that there is space to add a new argument type to the type table. | |
113 | * Expand the table if necessary. Returns 0 on success. | |
114 | */ | |
115 | static inline int | |
116 | _ensurespace(struct typetable *types) | |
117 | { | |
118 | ||
119 | if (types->nextarg >= types->tablesize) { | |
120 | if (__grow_type_table(types)) | |
121 | return (-1); | |
122 | } | |
123 | if (types->nextarg > types->tablemax) | |
124 | types->tablemax = types->nextarg; | |
125 | return (0); | |
126 | } | |
127 | ||
128 | /* | |
129 | * Add an argument type to the table, expanding if necessary. | |
130 | * Returns 0 on success. | |
131 | */ | |
132 | static inline int | |
133 | addtype(struct typetable *types, enum typeid type) | |
134 | { | |
135 | ||
136 | if (_ensurespace(types)) | |
137 | return (-1); | |
138 | types->table[types->nextarg++] = type; | |
139 | return (0); | |
140 | } | |
141 | ||
142 | static inline int | |
143 | addsarg(struct typetable *types, int flags) | |
144 | { | |
145 | ||
146 | if (_ensurespace(types)) | |
147 | return (-1); | |
148 | if (flags & INTMAXT) | |
149 | types->table[types->nextarg++] = T_INTMAXT; | |
150 | else if (flags & SIZET) | |
151 | types->table[types->nextarg++] = T_SSIZET; | |
152 | else if (flags & PTRDIFFT) | |
153 | types->table[types->nextarg++] = T_PTRDIFFT; | |
154 | else if (flags & LLONGINT) | |
155 | types->table[types->nextarg++] = T_LLONG; | |
156 | else if (flags & LONGINT) | |
157 | types->table[types->nextarg++] = T_LONG; | |
158 | else | |
159 | types->table[types->nextarg++] = T_INT; | |
160 | return (0); | |
161 | } | |
162 | ||
163 | static inline int | |
164 | adduarg(struct typetable *types, int flags) | |
165 | { | |
166 | ||
167 | if (_ensurespace(types)) | |
168 | return (-1); | |
169 | if (flags & INTMAXT) | |
170 | types->table[types->nextarg++] = T_UINTMAXT; | |
171 | else if (flags & SIZET) | |
172 | types->table[types->nextarg++] = T_SIZET; | |
173 | else if (flags & PTRDIFFT) | |
174 | types->table[types->nextarg++] = T_SIZET; | |
175 | else if (flags & LLONGINT) | |
176 | types->table[types->nextarg++] = T_U_LLONG; | |
177 | else if (flags & LONGINT) | |
178 | types->table[types->nextarg++] = T_U_LONG; | |
179 | else | |
180 | types->table[types->nextarg++] = T_U_INT; | |
181 | return (0); | |
182 | } | |
183 | ||
184 | /* | |
185 | * Add * arguments to the type array. | |
186 | */ | |
187 | static inline int | |
188 | addaster(struct typetable *types, char **fmtp) | |
189 | { | |
190 | char *cp; | |
191 | int n2; | |
192 | ||
193 | n2 = 0; | |
194 | cp = *fmtp; | |
195 | while (is_digit(*cp)) { | |
196 | n2 = 10 * n2 + to_digit(*cp); | |
197 | cp++; | |
198 | } | |
199 | if (*cp == '$') { | |
200 | int hold = types->nextarg; | |
201 | types->nextarg = n2; | |
202 | if (addtype(types, T_INT)) | |
203 | return (-1); | |
204 | types->nextarg = hold; | |
205 | *fmtp = ++cp; | |
206 | } else { | |
207 | if (addtype(types, T_INT)) | |
208 | return (-1); | |
209 | } | |
210 | return (0); | |
211 | } | |
212 | ||
213 | static inline int | |
214 | addwaster(struct typetable *types, wchar_t **fmtp) | |
215 | { | |
216 | wchar_t *cp; | |
217 | int n2; | |
218 | ||
219 | n2 = 0; | |
220 | cp = *fmtp; | |
221 | while (is_digit(*cp)) { | |
222 | n2 = 10 * n2 + to_digit(*cp); | |
223 | cp++; | |
224 | } | |
225 | if (*cp == '$') { | |
226 | int hold = types->nextarg; | |
227 | types->nextarg = n2; | |
228 | if (addtype(types, T_INT)) | |
229 | return (-1); | |
230 | types->nextarg = hold; | |
231 | *fmtp = ++cp; | |
232 | } else { | |
233 | if (addtype(types, T_INT)) | |
234 | return (-1); | |
235 | } | |
236 | return (0); | |
237 | } | |
238 | ||
239 | /* | |
240 | * Find all arguments when a positional parameter is encountered. Returns a | |
241 | * table, indexed by argument number, of pointers to each arguments. The | |
242 | * initial argument table should be an array of STATIC_ARG_TBL_SIZE entries. | |
243 | * It will be replaces with a malloc-ed one if it overflows. | |
244 | * Returns 0 on success. On failure, returns nonzero and sets errno. | |
245 | */ | |
ad3c9f2a | 246 | __private_extern__ int |
1f2f436a A |
247 | __find_arguments (const char *fmt0, va_list ap, union arg **argtable) |
248 | { | |
249 | char *fmt; /* format string */ | |
250 | int ch; /* character from fmt */ | |
251 | int n; /* handy integer (short term usage) */ | |
252 | int error; | |
253 | int flags; /* flags as above */ | |
254 | int width; /* width from format (%8d), or 0 */ | |
255 | struct typetable types; /* table of types */ | |
256 | ||
257 | fmt = (char *)fmt0; | |
258 | inittypes(&types); | |
259 | error = 0; | |
260 | ||
261 | /* | |
262 | * Scan the format for conversions (`%' character). | |
263 | */ | |
264 | for (;;) { | |
265 | while ((ch = *fmt) != '\0' && ch != '%') | |
266 | fmt++; | |
267 | if (ch == '\0') | |
268 | goto done; | |
269 | fmt++; /* skip over '%' */ | |
270 | ||
271 | flags = 0; | |
272 | width = 0; | |
273 | ||
274 | rflag: ch = *fmt++; | |
275 | reswitch: switch (ch) { | |
276 | case ' ': | |
277 | case '#': | |
278 | goto rflag; | |
279 | case '*': | |
280 | if ((error = addaster(&types, &fmt))) | |
281 | goto error; | |
282 | goto rflag; | |
283 | case '-': | |
284 | case '+': | |
285 | case '\'': | |
286 | goto rflag; | |
287 | case '.': | |
288 | if ((ch = *fmt++) == '*') { | |
289 | if ((error = addaster(&types, &fmt))) | |
290 | goto error; | |
291 | goto rflag; | |
292 | } | |
293 | while (is_digit(ch)) { | |
294 | ch = *fmt++; | |
295 | } | |
296 | goto reswitch; | |
297 | case '0': | |
298 | goto rflag; | |
299 | case '1': case '2': case '3': case '4': | |
300 | case '5': case '6': case '7': case '8': case '9': | |
301 | n = 0; | |
302 | do { | |
303 | n = 10 * n + to_digit(ch); | |
304 | ch = *fmt++; | |
305 | } while (is_digit(ch)); | |
306 | if (ch == '$') { | |
307 | types.nextarg = n; | |
308 | goto rflag; | |
309 | } | |
310 | width = n; | |
311 | goto reswitch; | |
312 | #ifndef NO_FLOATING_POINT | |
313 | case 'L': | |
314 | flags |= LONGDBL; | |
315 | goto rflag; | |
316 | #endif | |
317 | case 'h': | |
318 | if (flags & SHORTINT) { | |
319 | flags &= ~SHORTINT; | |
320 | flags |= CHARINT; | |
321 | } else | |
322 | flags |= SHORTINT; | |
323 | goto rflag; | |
324 | case 'j': | |
325 | flags |= INTMAXT; | |
326 | goto rflag; | |
327 | case 'l': | |
328 | if (flags & LONGINT) { | |
329 | flags &= ~LONGINT; | |
330 | flags |= LLONGINT; | |
331 | } else | |
332 | flags |= LONGINT; | |
333 | goto rflag; | |
334 | case 'q': | |
335 | flags |= LLONGINT; /* not necessarily */ | |
336 | goto rflag; | |
337 | case 't': | |
338 | flags |= PTRDIFFT; | |
339 | goto rflag; | |
340 | case 'z': | |
341 | flags |= SIZET; | |
342 | goto rflag; | |
343 | case 'C': | |
344 | flags |= LONGINT; | |
345 | /*FALLTHROUGH*/ | |
346 | case 'c': | |
347 | error = addtype(&types, | |
ad3c9f2a A |
348 | #ifdef VECTORS |
349 | (flags & LONGINT) ? T_WINT : ((flags & VECTOR) ? T_VECTOR : T_INT)); | |
350 | #else | |
1f2f436a | 351 | (flags & LONGINT) ? T_WINT : T_INT); |
ad3c9f2a | 352 | #endif |
1f2f436a A |
353 | if (error) |
354 | goto error; | |
355 | break; | |
356 | case 'D': | |
357 | flags |= LONGINT; | |
358 | /*FALLTHROUGH*/ | |
359 | case 'd': | |
360 | case 'i': | |
ad3c9f2a A |
361 | #ifdef VECTORS |
362 | if (flags & VECTOR) { | |
363 | if ((error = addtype(&types, T_VECTOR))) | |
364 | goto error; | |
365 | } else | |
366 | #endif | |
1f2f436a A |
367 | if ((error = addsarg(&types, flags))) |
368 | goto error; | |
369 | break; | |
370 | #ifndef NO_FLOATING_POINT | |
371 | case 'a': | |
372 | case 'A': | |
373 | case 'e': | |
374 | case 'E': | |
375 | case 'f': | |
ad3c9f2a | 376 | case 'F': |
1f2f436a A |
377 | case 'g': |
378 | case 'G': | |
379 | error = addtype(&types, | |
ad3c9f2a A |
380 | #ifdef VECTORS |
381 | (flags & VECTOR) ? T_VECTOR : ((flags & LONGDBL) ? T_LONG_DOUBLE : T_DOUBLE)); | |
382 | #else | |
1f2f436a | 383 | (flags & LONGDBL) ? T_LONG_DOUBLE : T_DOUBLE); |
ad3c9f2a | 384 | #endif |
1f2f436a A |
385 | if (error) |
386 | goto error; | |
387 | break; | |
388 | #endif /* !NO_FLOATING_POINT */ | |
389 | case 'n': | |
390 | if (flags & INTMAXT) | |
391 | error = addtype(&types, TP_INTMAXT); | |
392 | else if (flags & PTRDIFFT) | |
393 | error = addtype(&types, TP_PTRDIFFT); | |
394 | else if (flags & SIZET) | |
395 | error = addtype(&types, TP_SSIZET); | |
396 | else if (flags & LLONGINT) | |
397 | error = addtype(&types, TP_LLONG); | |
398 | else if (flags & LONGINT) | |
399 | error = addtype(&types, TP_LONG); | |
400 | else if (flags & SHORTINT) | |
401 | error = addtype(&types, TP_SHORT); | |
402 | else if (flags & CHARINT) | |
403 | error = addtype(&types, TP_SCHAR); | |
404 | else | |
405 | error = addtype(&types, TP_INT); | |
406 | if (error) | |
407 | goto error; | |
408 | continue; /* no output */ | |
409 | case 'O': | |
410 | flags |= LONGINT; | |
411 | /*FALLTHROUGH*/ | |
412 | case 'o': | |
ad3c9f2a A |
413 | #ifdef VECTORS |
414 | if (flags & VECTOR) { | |
415 | if ((error = addtype(&types, T_VECTOR))) | |
416 | goto error; | |
417 | } else | |
418 | #endif | |
1f2f436a A |
419 | if ((error = adduarg(&types, flags))) |
420 | goto error; | |
421 | break; | |
422 | case 'p': | |
ad3c9f2a A |
423 | #ifdef VECTORS |
424 | if ((error = addtype(&types, (flags & VECTOR) ? T_VECTOR : TP_VOID))) | |
425 | #else | |
1f2f436a | 426 | if ((error = addtype(&types, TP_VOID))) |
ad3c9f2a | 427 | #endif |
1f2f436a A |
428 | goto error; |
429 | break; | |
430 | case 'S': | |
431 | flags |= LONGINT; | |
432 | /*FALLTHROUGH*/ | |
433 | case 's': | |
434 | error = addtype(&types, | |
435 | (flags & LONGINT) ? TP_WCHAR : TP_CHAR); | |
436 | if (error) | |
437 | goto error; | |
438 | break; | |
439 | case 'U': | |
440 | flags |= LONGINT; | |
441 | /*FALLTHROUGH*/ | |
442 | case 'u': | |
443 | case 'X': | |
444 | case 'x': | |
ad3c9f2a A |
445 | #ifdef VECTORS |
446 | if (flags & VECTOR) { | |
447 | if ((error = addtype(&types, T_VECTOR))) | |
448 | goto error; | |
449 | } else | |
450 | #endif | |
1f2f436a A |
451 | if ((error = adduarg(&types, flags))) |
452 | goto error; | |
453 | break; | |
454 | default: /* "%?" prints ?, unless ? is NUL */ | |
455 | if (ch == '\0') | |
456 | goto done; | |
457 | break; | |
458 | } | |
459 | } | |
460 | done: | |
461 | build_arg_table(&types, ap, argtable); | |
462 | error: | |
463 | freetypes(&types); | |
464 | return (error || *argtable == NULL); | |
465 | } | |
466 | ||
467 | /* wchar version of __find_arguments. */ | |
ad3c9f2a | 468 | __private_extern__ int |
1f2f436a A |
469 | __find_warguments (const wchar_t *fmt0, va_list ap, union arg **argtable) |
470 | { | |
471 | wchar_t *fmt; /* format string */ | |
472 | wchar_t ch; /* character from fmt */ | |
473 | int n; /* handy integer (short term usage) */ | |
474 | int error; | |
475 | int flags; /* flags as above */ | |
476 | int width; /* width from format (%8d), or 0 */ | |
477 | struct typetable types; /* table of types */ | |
478 | ||
479 | fmt = (wchar_t *)fmt0; | |
480 | inittypes(&types); | |
481 | error = 0; | |
482 | ||
483 | /* | |
484 | * Scan the format for conversions (`%' character). | |
485 | */ | |
486 | for (;;) { | |
487 | while ((ch = *fmt) != '\0' && ch != '%') | |
488 | fmt++; | |
489 | if (ch == '\0') | |
490 | goto done; | |
491 | fmt++; /* skip over '%' */ | |
492 | ||
493 | flags = 0; | |
494 | width = 0; | |
495 | ||
496 | rflag: ch = *fmt++; | |
497 | reswitch: switch (ch) { | |
498 | case ' ': | |
499 | case '#': | |
500 | goto rflag; | |
501 | case '*': | |
502 | if ((error = addwaster(&types, &fmt))) | |
503 | goto error; | |
504 | goto rflag; | |
505 | case '-': | |
506 | case '+': | |
507 | case '\'': | |
508 | goto rflag; | |
509 | case '.': | |
510 | if ((ch = *fmt++) == '*') { | |
511 | if ((error = addwaster(&types, &fmt))) | |
512 | goto error; | |
513 | goto rflag; | |
514 | } | |
515 | while (is_digit(ch)) { | |
516 | ch = *fmt++; | |
517 | } | |
518 | goto reswitch; | |
519 | case '0': | |
520 | goto rflag; | |
521 | case '1': case '2': case '3': case '4': | |
522 | case '5': case '6': case '7': case '8': case '9': | |
523 | n = 0; | |
524 | do { | |
525 | n = 10 * n + to_digit(ch); | |
526 | ch = *fmt++; | |
527 | } while (is_digit(ch)); | |
528 | if (ch == '$') { | |
529 | types.nextarg = n; | |
530 | goto rflag; | |
531 | } | |
532 | width = n; | |
533 | goto reswitch; | |
534 | #ifndef NO_FLOATING_POINT | |
535 | case 'L': | |
536 | flags |= LONGDBL; | |
537 | goto rflag; | |
538 | #endif | |
539 | case 'h': | |
540 | if (flags & SHORTINT) { | |
541 | flags &= ~SHORTINT; | |
542 | flags |= CHARINT; | |
543 | } else | |
544 | flags |= SHORTINT; | |
545 | goto rflag; | |
546 | case 'j': | |
547 | flags |= INTMAXT; | |
548 | goto rflag; | |
549 | case 'l': | |
550 | if (flags & LONGINT) { | |
551 | flags &= ~LONGINT; | |
552 | flags |= LLONGINT; | |
553 | } else | |
554 | flags |= LONGINT; | |
555 | goto rflag; | |
556 | case 'q': | |
557 | flags |= LLONGINT; /* not necessarily */ | |
558 | goto rflag; | |
559 | case 't': | |
560 | flags |= PTRDIFFT; | |
561 | goto rflag; | |
562 | case 'z': | |
563 | flags |= SIZET; | |
564 | goto rflag; | |
565 | case 'C': | |
566 | flags |= LONGINT; | |
567 | /*FALLTHROUGH*/ | |
568 | case 'c': | |
569 | error = addtype(&types, | |
570 | (flags & LONGINT) ? T_WINT : T_INT); | |
571 | if (error) | |
572 | goto error; | |
573 | break; | |
574 | case 'D': | |
575 | flags |= LONGINT; | |
576 | /*FALLTHROUGH*/ | |
577 | case 'd': | |
578 | case 'i': | |
579 | if ((error = addsarg(&types, flags))) | |
580 | goto error; | |
581 | break; | |
582 | #ifndef NO_FLOATING_POINT | |
583 | case 'a': | |
584 | case 'A': | |
585 | case 'e': | |
586 | case 'E': | |
587 | case 'f': | |
ad3c9f2a | 588 | case 'F': |
1f2f436a A |
589 | case 'g': |
590 | case 'G': | |
591 | error = addtype(&types, | |
592 | (flags & LONGDBL) ? T_LONG_DOUBLE : T_DOUBLE); | |
593 | if (error) | |
594 | goto error; | |
595 | break; | |
596 | #endif /* !NO_FLOATING_POINT */ | |
597 | case 'n': | |
598 | if (flags & INTMAXT) | |
599 | error = addtype(&types, TP_INTMAXT); | |
600 | else if (flags & PTRDIFFT) | |
601 | error = addtype(&types, TP_PTRDIFFT); | |
602 | else if (flags & SIZET) | |
603 | error = addtype(&types, TP_SSIZET); | |
604 | else if (flags & LLONGINT) | |
605 | error = addtype(&types, TP_LLONG); | |
606 | else if (flags & LONGINT) | |
607 | error = addtype(&types, TP_LONG); | |
608 | else if (flags & SHORTINT) | |
609 | error = addtype(&types, TP_SHORT); | |
610 | else if (flags & CHARINT) | |
611 | error = addtype(&types, TP_SCHAR); | |
612 | else | |
613 | error = addtype(&types, TP_INT); | |
614 | if (error) | |
615 | goto error; | |
616 | continue; /* no output */ | |
617 | case 'O': | |
618 | flags |= LONGINT; | |
619 | /*FALLTHROUGH*/ | |
620 | case 'o': | |
621 | if ((error = adduarg(&types, flags))) | |
622 | goto error; | |
623 | break; | |
624 | case 'p': | |
625 | if ((error = addtype(&types, TP_VOID))) | |
626 | goto error; | |
627 | break; | |
628 | case 'S': | |
629 | flags |= LONGINT; | |
630 | /*FALLTHROUGH*/ | |
631 | case 's': | |
632 | error = addtype(&types, | |
633 | (flags & LONGINT) ? TP_WCHAR : TP_CHAR); | |
634 | if (error) | |
635 | goto error; | |
636 | break; | |
637 | case 'U': | |
638 | flags |= LONGINT; | |
639 | /*FALLTHROUGH*/ | |
640 | case 'u': | |
641 | case 'X': | |
642 | case 'x': | |
643 | if ((error = adduarg(&types, flags))) | |
644 | goto error; | |
645 | break; | |
646 | default: /* "%?" prints ?, unless ? is NUL */ | |
647 | if (ch == '\0') | |
648 | goto done; | |
649 | break; | |
650 | } | |
651 | } | |
652 | done: | |
653 | build_arg_table(&types, ap, argtable); | |
654 | error: | |
655 | freetypes(&types); | |
656 | return (error || *argtable == NULL); | |
657 | } | |
658 | ||
659 | /* | |
660 | * Increase the size of the type table. Returns 0 on success. | |
661 | */ | |
662 | static int | |
663 | __grow_type_table(struct typetable *types) | |
664 | { | |
665 | enum typeid *const oldtable = types->table; | |
666 | const int oldsize = types->tablesize; | |
667 | enum typeid *newtable; | |
668 | int n, newsize = oldsize * 2; | |
669 | ||
670 | if (newsize < types->nextarg + 1) | |
671 | newsize = types->nextarg + 1; | |
672 | if (oldsize == STATIC_ARG_TBL_SIZE) { | |
673 | if ((newtable = malloc(newsize * sizeof(enum typeid))) == NULL) | |
674 | return (-1); | |
675 | bcopy(oldtable, newtable, oldsize * sizeof(enum typeid)); | |
676 | } else { | |
677 | newtable = realloc(oldtable, newsize * sizeof(enum typeid)); | |
678 | if (newtable == NULL) | |
679 | return (-1); | |
680 | } | |
681 | for (n = oldsize; n < newsize; n++) | |
682 | newtable[n] = T_UNUSED; | |
683 | ||
684 | types->table = newtable; | |
685 | types->tablesize = newsize; | |
686 | ||
687 | return (0); | |
688 | } | |
689 | ||
690 | /* | |
691 | * Build the argument table from the completed type table. | |
692 | * On malloc failure, *argtable is set to NULL. | |
693 | */ | |
694 | static void | |
695 | build_arg_table(struct typetable *types, va_list ap, union arg **argtable) | |
696 | { | |
697 | int n; | |
698 | ||
699 | if (types->tablemax >= STATIC_ARG_TBL_SIZE) { | |
700 | *argtable = (union arg *) | |
701 | malloc (sizeof (union arg) * (types->tablemax + 1)); | |
702 | if (*argtable == NULL) | |
703 | return; | |
704 | } | |
705 | ||
706 | (*argtable) [0].intarg = 0; | |
707 | for (n = 1; n <= types->tablemax; n++) { | |
708 | switch (types->table[n]) { | |
709 | case T_UNUSED: /* whoops! */ | |
710 | (*argtable) [n].intarg = va_arg (ap, int); | |
711 | break; | |
712 | case TP_SCHAR: | |
713 | (*argtable) [n].pschararg = va_arg (ap, signed char *); | |
714 | break; | |
715 | case TP_SHORT: | |
716 | (*argtable) [n].pshortarg = va_arg (ap, short *); | |
717 | break; | |
718 | case T_INT: | |
719 | (*argtable) [n].intarg = va_arg (ap, int); | |
720 | break; | |
721 | case T_U_INT: | |
722 | (*argtable) [n].uintarg = va_arg (ap, unsigned int); | |
723 | break; | |
724 | case TP_INT: | |
725 | (*argtable) [n].pintarg = va_arg (ap, int *); | |
726 | break; | |
727 | case T_LONG: | |
728 | (*argtable) [n].longarg = va_arg (ap, long); | |
729 | break; | |
730 | case T_U_LONG: | |
731 | (*argtable) [n].ulongarg = va_arg (ap, unsigned long); | |
732 | break; | |
733 | case TP_LONG: | |
734 | (*argtable) [n].plongarg = va_arg (ap, long *); | |
735 | break; | |
736 | case T_LLONG: | |
737 | (*argtable) [n].longlongarg = va_arg (ap, long long); | |
738 | break; | |
739 | case T_U_LLONG: | |
740 | (*argtable) [n].ulonglongarg = va_arg (ap, unsigned long long); | |
741 | break; | |
742 | case TP_LLONG: | |
743 | (*argtable) [n].plonglongarg = va_arg (ap, long long *); | |
744 | break; | |
745 | case T_PTRDIFFT: | |
746 | (*argtable) [n].ptrdiffarg = va_arg (ap, ptrdiff_t); | |
747 | break; | |
748 | case TP_PTRDIFFT: | |
749 | (*argtable) [n].pptrdiffarg = va_arg (ap, ptrdiff_t *); | |
750 | break; | |
751 | case T_SIZET: | |
752 | (*argtable) [n].sizearg = va_arg (ap, size_t); | |
753 | break; | |
754 | case T_SSIZET: | |
755 | (*argtable) [n].sizearg = va_arg (ap, ssize_t); | |
756 | break; | |
757 | case TP_SSIZET: | |
758 | (*argtable) [n].pssizearg = va_arg (ap, ssize_t *); | |
759 | break; | |
760 | case T_INTMAXT: | |
761 | (*argtable) [n].intmaxarg = va_arg (ap, intmax_t); | |
762 | break; | |
763 | case T_UINTMAXT: | |
764 | (*argtable) [n].uintmaxarg = va_arg (ap, uintmax_t); | |
765 | break; | |
766 | case TP_INTMAXT: | |
767 | (*argtable) [n].pintmaxarg = va_arg (ap, intmax_t *); | |
768 | break; | |
769 | case T_DOUBLE: | |
770 | #ifndef NO_FLOATING_POINT | |
771 | (*argtable) [n].doublearg = va_arg (ap, double); | |
772 | #endif | |
773 | break; | |
774 | case T_LONG_DOUBLE: | |
775 | #ifndef NO_FLOATING_POINT | |
776 | (*argtable) [n].longdoublearg = va_arg (ap, long double); | |
777 | #endif | |
778 | break; | |
ad3c9f2a A |
779 | #ifdef VECTORS |
780 | case T_VECTOR: | |
781 | (*argtable) [n].vectorarg = va_arg (ap, VECTORTYPE); | |
782 | break; | |
783 | #endif /* VECTORS */ | |
1f2f436a A |
784 | case TP_CHAR: |
785 | (*argtable) [n].pchararg = va_arg (ap, char *); | |
786 | break; | |
787 | case TP_VOID: | |
788 | (*argtable) [n].pvoidarg = va_arg (ap, void *); | |
789 | break; | |
790 | case T_WINT: | |
791 | (*argtable) [n].wintarg = va_arg (ap, wint_t); | |
792 | break; | |
793 | case TP_WCHAR: | |
794 | (*argtable) [n].pwchararg = va_arg (ap, wchar_t *); | |
795 | break; | |
796 | } | |
797 | } | |
798 | } |