1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Chris Torek.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #if defined(LIBC_SCCS) && !defined(lint)
36 static char sccsid[] = "@(#)vfprintf.c 8.1 (Berkeley) 6/4/93";
37 #endif /* LIBC_SCCS and not lint */
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
40
41 /*
42 * This is the code responsible for handling positional arguments
43 * (%m$ and %m$.n$) for vfprintf() and vfwprintf().
44 */
45
46 #include "namespace.h"
47 #include <sys/types.h>
48
49 #include <limits.h>
50 #include <stdarg.h>
51 #include <stddef.h>
52 #include <stdint.h>
53 #include <stdio.h>
54 #include <stdlib.h>
55 #include <string.h>
56 #include <wchar.h>
57
58 #include "un-namespace.h"
59 #include "printflocal.h"
60
61 #ifdef NL_ARGMAX
62 #define MAX_POSARG NL_ARGMAX
63 #else
64 #define MAX_POSARG 65536
65 #endif
66
67 /*
68 * Type ids for argument type table.
69 */
70 enum typeid {
71 T_UNUSED, TP_SHORT, T_INT, T_U_INT, TP_INT,
72 T_LONG, T_U_LONG, TP_LONG, T_LLONG, T_U_LLONG, TP_LLONG,
73 T_PTRDIFFT, TP_PTRDIFFT, T_SSIZET, T_SIZET, TP_SSIZET,
74 T_INTMAXT, T_UINTMAXT, TP_INTMAXT, TP_VOID, TP_CHAR, TP_SCHAR,
75 T_DOUBLE, T_LONG_DOUBLE, T_WINT, TP_WCHAR
76 };
77
78 /* An expandable array of types. */
79 struct typetable {
80 enum typeid *table; /* table of types */
81 enum typeid stattable[STATIC_ARG_TBL_SIZE];
82 u_int tablesize; /* current size of type table */
83 u_int tablemax; /* largest used index in table */
84 u_int nextarg; /* 1-based argument index */
85 };
86
87 static int __grow_type_table(struct typetable *);
88 static void build_arg_table (struct typetable *, va_list, union arg **);
89
90 /*
91 * Initialize a struct typetable.
92 */
93 static inline void
inittypes(struct typetable * types)94 inittypes(struct typetable *types)
95 {
96 u_int n;
97
98 types->table = types->stattable;
99 types->tablesize = STATIC_ARG_TBL_SIZE;
100 types->tablemax = 0;
101 types->nextarg = 1;
102 for (n = 0; n < STATIC_ARG_TBL_SIZE; n++)
103 types->table[n] = T_UNUSED;
104 }
105
106 /*
107 * struct typetable destructor.
108 */
109 static inline void
freetypes(struct typetable * types)110 freetypes(struct typetable *types)
111 {
112
113 if (types->table != types->stattable)
114 free (types->table);
115 }
116
117 /*
118 * Ensure that there is space to add a new argument type to the type table.
119 * Expand the table if necessary. Returns 0 on success.
120 */
121 static inline int
_ensurespace(struct typetable * types)122 _ensurespace(struct typetable *types)
123 {
124
125 if (types->nextarg >= types->tablesize) {
126 if (__grow_type_table(types))
127 return (-1);
128 }
129 if (types->nextarg > types->tablemax)
130 types->tablemax = types->nextarg;
131 return (0);
132 }
133
134 /*
135 * Add an argument type to the table, expanding if necessary.
136 * Returns 0 on success.
137 */
138 static inline int
addtype(struct typetable * types,enum typeid type)139 addtype(struct typetable *types, enum typeid type)
140 {
141
142 if (_ensurespace(types))
143 return (-1);
144 types->table[types->nextarg++] = type;
145 return (0);
146 }
147
148 static inline int
addsarg(struct typetable * types,int flags)149 addsarg(struct typetable *types, int flags)
150 {
151
152 if (_ensurespace(types))
153 return (-1);
154 if (flags & INTMAXT)
155 types->table[types->nextarg++] = T_INTMAXT;
156 else if (flags & SIZET)
157 types->table[types->nextarg++] = T_SSIZET;
158 else if (flags & PTRDIFFT)
159 types->table[types->nextarg++] = T_PTRDIFFT;
160 else if (flags & LLONGINT)
161 types->table[types->nextarg++] = T_LLONG;
162 else if (flags & LONGINT)
163 types->table[types->nextarg++] = T_LONG;
164 else
165 types->table[types->nextarg++] = T_INT;
166 return (0);
167 }
168
169 static inline int
adduarg(struct typetable * types,int flags)170 adduarg(struct typetable *types, int flags)
171 {
172
173 if (_ensurespace(types))
174 return (-1);
175 if (flags & INTMAXT)
176 types->table[types->nextarg++] = T_UINTMAXT;
177 else if (flags & SIZET)
178 types->table[types->nextarg++] = T_SIZET;
179 else if (flags & PTRDIFFT)
180 types->table[types->nextarg++] = T_SIZET;
181 else if (flags & LLONGINT)
182 types->table[types->nextarg++] = T_U_LLONG;
183 else if (flags & LONGINT)
184 types->table[types->nextarg++] = T_U_LONG;
185 else
186 types->table[types->nextarg++] = T_U_INT;
187 return (0);
188 }
189
190 /*
191 * Add * arguments to the type array.
192 */
193 static inline int
addaster(struct typetable * types,char ** fmtp)194 addaster(struct typetable *types, char **fmtp)
195 {
196 char *cp;
197 u_int n2;
198
199 n2 = 0;
200 cp = *fmtp;
201 while (is_digit(*cp)) {
202 n2 = 10 * n2 + to_digit(*cp);
203 cp++;
204 }
205 if (*cp == '$') {
206 u_int hold = types->nextarg;
207 types->nextarg = n2;
208 if (addtype(types, T_INT))
209 return (-1);
210 types->nextarg = hold;
211 *fmtp = ++cp;
212 } else {
213 if (addtype(types, T_INT))
214 return (-1);
215 }
216 return (0);
217 }
218
219 static inline int
addwaster(struct typetable * types,wchar_t ** fmtp)220 addwaster(struct typetable *types, wchar_t **fmtp)
221 {
222 wchar_t *cp;
223 u_int n2;
224
225 n2 = 0;
226 cp = *fmtp;
227 while (is_digit(*cp)) {
228 n2 = 10 * n2 + to_digit(*cp);
229 cp++;
230 }
231 if (*cp == '$') {
232 u_int hold = types->nextarg;
233 types->nextarg = n2;
234 if (addtype(types, T_INT))
235 return (-1);
236 types->nextarg = hold;
237 *fmtp = ++cp;
238 } else {
239 if (addtype(types, T_INT))
240 return (-1);
241 }
242 return (0);
243 }
244
245 /*
246 * Find all arguments when a positional parameter is encountered. Returns a
247 * table, indexed by argument number, of pointers to each arguments. The
248 * initial argument table should be an array of STATIC_ARG_TBL_SIZE entries.
249 * It will be replaces with a malloc-ed one if it overflows.
250 * Returns 0 on success. On failure, returns nonzero and sets errno.
251 */
252 int
__find_arguments(const char * fmt0,va_list ap,union arg ** argtable)253 __find_arguments (const char *fmt0, va_list ap, union arg **argtable)
254 {
255 char *fmt; /* format string */
256 int ch; /* character from fmt */
257 u_int n; /* handy integer (short term usage) */
258 int error;
259 int flags; /* flags as above */
260 struct typetable types; /* table of types */
261
262 fmt = (char *)fmt0;
263 inittypes(&types);
264 error = 0;
265
266 /*
267 * Scan the format for conversions (`%' character).
268 */
269 for (;;) {
270 while ((ch = *fmt) != '\0' && ch != '%')
271 fmt++;
272 if (ch == '\0')
273 goto done;
274 fmt++; /* skip over '%' */
275
276 flags = 0;
277
278 rflag: ch = *fmt++;
279 reswitch: switch (ch) {
280 case ' ':
281 case '#':
282 goto rflag;
283 case '*':
284 if ((error = addaster(&types, &fmt)))
285 goto error;
286 goto rflag;
287 case '-':
288 case '+':
289 case '\'':
290 goto rflag;
291 case '.':
292 if ((ch = *fmt++) == '*') {
293 if ((error = addaster(&types, &fmt)))
294 goto error;
295 goto rflag;
296 }
297 while (is_digit(ch)) {
298 ch = *fmt++;
299 }
300 goto reswitch;
301 case '0':
302 goto rflag;
303 case '1': case '2': case '3': case '4':
304 case '5': case '6': case '7': case '8': case '9':
305 n = 0;
306 do {
307 n = 10 * n + to_digit(ch);
308 /* Detect overflow */
309 if (n > MAX_POSARG) {
310 error = -1;
311 goto error;
312 }
313 ch = *fmt++;
314 } while (is_digit(ch));
315 if (ch == '$') {
316 types.nextarg = n;
317 goto rflag;
318 }
319 goto reswitch;
320 #ifndef NO_FLOATING_POINT
321 case 'L':
322 flags |= LONGDBL;
323 goto rflag;
324 #endif
325 case 'h':
326 if (flags & SHORTINT) {
327 flags &= ~SHORTINT;
328 flags |= CHARINT;
329 } else
330 flags |= SHORTINT;
331 goto rflag;
332 case 'j':
333 flags |= INTMAXT;
334 goto rflag;
335 case 'l':
336 if (flags & LONGINT) {
337 flags &= ~LONGINT;
338 flags |= LLONGINT;
339 } else
340 flags |= LONGINT;
341 goto rflag;
342 case 'q':
343 flags |= LLONGINT; /* not necessarily */
344 goto rflag;
345 case 't':
346 flags |= PTRDIFFT;
347 goto rflag;
348 case 'z':
349 flags |= SIZET;
350 goto rflag;
351 case 'C':
352 flags |= LONGINT;
353 /*FALLTHROUGH*/
354 case 'c':
355 error = addtype(&types,
356 (flags & LONGINT) ? T_WINT : T_INT);
357 if (error)
358 goto error;
359 break;
360 case 'D':
361 flags |= LONGINT;
362 /*FALLTHROUGH*/
363 case 'd':
364 case 'i':
365 if ((error = addsarg(&types, flags)))
366 goto error;
367 break;
368 #ifndef NO_FLOATING_POINT
369 case 'a':
370 case 'A':
371 case 'e':
372 case 'E':
373 case 'f':
374 case 'g':
375 case 'G':
376 error = addtype(&types,
377 (flags & LONGDBL) ? T_LONG_DOUBLE : T_DOUBLE);
378 if (error)
379 goto error;
380 break;
381 #endif /* !NO_FLOATING_POINT */
382 case 'n':
383 if (flags & INTMAXT)
384 error = addtype(&types, TP_INTMAXT);
385 else if (flags & PTRDIFFT)
386 error = addtype(&types, TP_PTRDIFFT);
387 else if (flags & SIZET)
388 error = addtype(&types, TP_SSIZET);
389 else if (flags & LLONGINT)
390 error = addtype(&types, TP_LLONG);
391 else if (flags & LONGINT)
392 error = addtype(&types, TP_LONG);
393 else if (flags & SHORTINT)
394 error = addtype(&types, TP_SHORT);
395 else if (flags & CHARINT)
396 error = addtype(&types, TP_SCHAR);
397 else
398 error = addtype(&types, TP_INT);
399 if (error)
400 goto error;
401 continue; /* no output */
402 case 'O':
403 flags |= LONGINT;
404 /*FALLTHROUGH*/
405 case 'o':
406 if ((error = adduarg(&types, flags)))
407 goto error;
408 break;
409 case 'p':
410 if ((error = addtype(&types, TP_VOID)))
411 goto error;
412 break;
413 case 'S':
414 flags |= LONGINT;
415 /*FALLTHROUGH*/
416 case 's':
417 error = addtype(&types,
418 (flags & LONGINT) ? TP_WCHAR : TP_CHAR);
419 if (error)
420 goto error;
421 break;
422 case 'U':
423 flags |= LONGINT;
424 /*FALLTHROUGH*/
425 case 'u':
426 case 'X':
427 case 'x':
428 if ((error = adduarg(&types, flags)))
429 goto error;
430 break;
431 default: /* "%?" prints ?, unless ? is NUL */
432 if (ch == '\0')
433 goto done;
434 break;
435 }
436 }
437 done:
438 build_arg_table(&types, ap, argtable);
439 error:
440 freetypes(&types);
441 return (error || *argtable == NULL);
442 }
443
444 /* wchar version of __find_arguments. */
445 int
__find_warguments(const wchar_t * fmt0,va_list ap,union arg ** argtable)446 __find_warguments (const wchar_t *fmt0, va_list ap, union arg **argtable)
447 {
448 wchar_t *fmt; /* format string */
449 wchar_t ch; /* character from fmt */
450 u_int n; /* handy integer (short term usage) */
451 int error;
452 int flags; /* flags as above */
453 struct typetable types; /* table of types */
454
455 fmt = (wchar_t *)fmt0;
456 inittypes(&types);
457 error = 0;
458
459 /*
460 * Scan the format for conversions (`%' character).
461 */
462 for (;;) {
463 while ((ch = *fmt) != '\0' && ch != '%')
464 fmt++;
465 if (ch == '\0')
466 goto done;
467 fmt++; /* skip over '%' */
468
469 flags = 0;
470
471 rflag: ch = *fmt++;
472 reswitch: switch (ch) {
473 case ' ':
474 case '#':
475 goto rflag;
476 case '*':
477 if ((error = addwaster(&types, &fmt)))
478 goto error;
479 goto rflag;
480 case '-':
481 case '+':
482 case '\'':
483 goto rflag;
484 case '.':
485 if ((ch = *fmt++) == '*') {
486 if ((error = addwaster(&types, &fmt)))
487 goto error;
488 goto rflag;
489 }
490 while (is_digit(ch)) {
491 ch = *fmt++;
492 }
493 goto reswitch;
494 case '0':
495 goto rflag;
496 case '1': case '2': case '3': case '4':
497 case '5': case '6': case '7': case '8': case '9':
498 n = 0;
499 do {
500 n = 10 * n + to_digit(ch);
501 /* Detect overflow */
502 if (n > MAX_POSARG) {
503 error = -1;
504 goto error;
505 }
506 ch = *fmt++;
507 } while (is_digit(ch));
508 if (ch == '$') {
509 types.nextarg = n;
510 goto rflag;
511 }
512 goto reswitch;
513 #ifndef NO_FLOATING_POINT
514 case 'L':
515 flags |= LONGDBL;
516 goto rflag;
517 #endif
518 case 'h':
519 if (flags & SHORTINT) {
520 flags &= ~SHORTINT;
521 flags |= CHARINT;
522 } else
523 flags |= SHORTINT;
524 goto rflag;
525 case 'j':
526 flags |= INTMAXT;
527 goto rflag;
528 case 'l':
529 if (flags & LONGINT) {
530 flags &= ~LONGINT;
531 flags |= LLONGINT;
532 } else
533 flags |= LONGINT;
534 goto rflag;
535 case 'q':
536 flags |= LLONGINT; /* not necessarily */
537 goto rflag;
538 case 't':
539 flags |= PTRDIFFT;
540 goto rflag;
541 case 'z':
542 flags |= SIZET;
543 goto rflag;
544 case 'C':
545 flags |= LONGINT;
546 /*FALLTHROUGH*/
547 case 'c':
548 error = addtype(&types,
549 (flags & LONGINT) ? T_WINT : T_INT);
550 if (error)
551 goto error;
552 break;
553 case 'D':
554 flags |= LONGINT;
555 /*FALLTHROUGH*/
556 case 'd':
557 case 'i':
558 if ((error = addsarg(&types, flags)))
559 goto error;
560 break;
561 #ifndef NO_FLOATING_POINT
562 case 'a':
563 case 'A':
564 case 'e':
565 case 'E':
566 case 'f':
567 case 'g':
568 case 'G':
569 error = addtype(&types,
570 (flags & LONGDBL) ? T_LONG_DOUBLE : T_DOUBLE);
571 if (error)
572 goto error;
573 break;
574 #endif /* !NO_FLOATING_POINT */
575 case 'n':
576 if (flags & INTMAXT)
577 error = addtype(&types, TP_INTMAXT);
578 else if (flags & PTRDIFFT)
579 error = addtype(&types, TP_PTRDIFFT);
580 else if (flags & SIZET)
581 error = addtype(&types, TP_SSIZET);
582 else if (flags & LLONGINT)
583 error = addtype(&types, TP_LLONG);
584 else if (flags & LONGINT)
585 error = addtype(&types, TP_LONG);
586 else if (flags & SHORTINT)
587 error = addtype(&types, TP_SHORT);
588 else if (flags & CHARINT)
589 error = addtype(&types, TP_SCHAR);
590 else
591 error = addtype(&types, TP_INT);
592 if (error)
593 goto error;
594 continue; /* no output */
595 case 'O':
596 flags |= LONGINT;
597 /*FALLTHROUGH*/
598 case 'o':
599 if ((error = adduarg(&types, flags)))
600 goto error;
601 break;
602 case 'p':
603 if ((error = addtype(&types, TP_VOID)))
604 goto error;
605 break;
606 case 'S':
607 flags |= LONGINT;
608 /*FALLTHROUGH*/
609 case 's':
610 error = addtype(&types,
611 (flags & LONGINT) ? TP_WCHAR : TP_CHAR);
612 if (error)
613 goto error;
614 break;
615 case 'U':
616 flags |= LONGINT;
617 /*FALLTHROUGH*/
618 case 'u':
619 case 'X':
620 case 'x':
621 if ((error = adduarg(&types, flags)))
622 goto error;
623 break;
624 default: /* "%?" prints ?, unless ? is NUL */
625 if (ch == '\0')
626 goto done;
627 break;
628 }
629 }
630 done:
631 build_arg_table(&types, ap, argtable);
632 error:
633 freetypes(&types);
634 return (error || *argtable == NULL);
635 }
636
637 /*
638 * Increase the size of the type table. Returns 0 on success.
639 */
640 static int
__grow_type_table(struct typetable * types)641 __grow_type_table(struct typetable *types)
642 {
643 enum typeid *const oldtable = types->table;
644 const int oldsize = types->tablesize;
645 enum typeid *newtable;
646 u_int n, newsize;
647
648 /* Detect overflow */
649 if (types->nextarg > NL_ARGMAX)
650 return (-1);
651
652 newsize = oldsize * 2;
653 if (newsize < types->nextarg + 1)
654 newsize = types->nextarg + 1;
655 if (oldsize == STATIC_ARG_TBL_SIZE) {
656 if ((newtable = malloc(newsize * sizeof(enum typeid))) == NULL)
657 return (-1);
658 bcopy(oldtable, newtable, oldsize * sizeof(enum typeid));
659 } else {
660 newtable = reallocarray(oldtable, newsize, sizeof(enum typeid));
661 if (newtable == NULL)
662 return (-1);
663 }
664 for (n = oldsize; n < newsize; n++)
665 newtable[n] = T_UNUSED;
666
667 types->table = newtable;
668 types->tablesize = newsize;
669
670 return (0);
671 }
672
673 /*
674 * Build the argument table from the completed type table.
675 * On malloc failure, *argtable is set to NULL.
676 */
677 static void
build_arg_table(struct typetable * types,va_list ap,union arg ** argtable)678 build_arg_table(struct typetable *types, va_list ap, union arg **argtable)
679 {
680 u_int n;
681
682 if (types->tablemax >= STATIC_ARG_TBL_SIZE) {
683 *argtable = (union arg *)
684 malloc (sizeof (union arg) * (types->tablemax + 1));
685 if (*argtable == NULL)
686 return;
687 }
688
689 (*argtable) [0].intarg = 0;
690 for (n = 1; n <= types->tablemax; n++) {
691 switch (types->table[n]) {
692 case T_UNUSED: /* whoops! */
693 (*argtable) [n].intarg = va_arg (ap, int);
694 break;
695 case TP_SCHAR:
696 (*argtable) [n].pschararg = va_arg (ap, signed char *);
697 break;
698 case TP_SHORT:
699 (*argtable) [n].pshortarg = va_arg (ap, short *);
700 break;
701 case T_INT:
702 (*argtable) [n].intarg = va_arg (ap, int);
703 break;
704 case T_U_INT:
705 (*argtable) [n].uintarg = va_arg (ap, unsigned int);
706 break;
707 case TP_INT:
708 (*argtable) [n].pintarg = va_arg (ap, int *);
709 break;
710 case T_LONG:
711 (*argtable) [n].longarg = va_arg (ap, long);
712 break;
713 case T_U_LONG:
714 (*argtable) [n].ulongarg = va_arg (ap, unsigned long);
715 break;
716 case TP_LONG:
717 (*argtable) [n].plongarg = va_arg (ap, long *);
718 break;
719 case T_LLONG:
720 (*argtable) [n].longlongarg = va_arg (ap, long long);
721 break;
722 case T_U_LLONG:
723 (*argtable) [n].ulonglongarg = va_arg (ap, unsigned long long);
724 break;
725 case TP_LLONG:
726 (*argtable) [n].plonglongarg = va_arg (ap, long long *);
727 break;
728 case T_PTRDIFFT:
729 (*argtable) [n].ptrdiffarg = va_arg (ap, ptrdiff_t);
730 break;
731 case TP_PTRDIFFT:
732 (*argtable) [n].pptrdiffarg = va_arg (ap, ptrdiff_t *);
733 break;
734 case T_SIZET:
735 (*argtable) [n].sizearg = va_arg (ap, size_t);
736 break;
737 case T_SSIZET:
738 (*argtable) [n].sizearg = va_arg (ap, ssize_t);
739 break;
740 case TP_SSIZET:
741 (*argtable) [n].pssizearg = va_arg (ap, ssize_t *);
742 break;
743 case T_INTMAXT:
744 (*argtable) [n].intmaxarg = va_arg (ap, intmax_t);
745 break;
746 case T_UINTMAXT:
747 (*argtable) [n].uintmaxarg = va_arg (ap, uintmax_t);
748 break;
749 case TP_INTMAXT:
750 (*argtable) [n].pintmaxarg = va_arg (ap, intmax_t *);
751 break;
752 case T_DOUBLE:
753 #ifndef NO_FLOATING_POINT
754 (*argtable) [n].doublearg = va_arg (ap, double);
755 #endif
756 break;
757 case T_LONG_DOUBLE:
758 #ifndef NO_FLOATING_POINT
759 (*argtable) [n].longdoublearg = va_arg (ap, long double);
760 #endif
761 break;
762 case TP_CHAR:
763 (*argtable) [n].pchararg = va_arg (ap, char *);
764 break;
765 case TP_VOID:
766 (*argtable) [n].pvoidarg = va_arg (ap, void *);
767 break;
768 case T_WINT:
769 (*argtable) [n].wintarg = va_arg (ap, wint_t);
770 break;
771 case TP_WCHAR:
772 (*argtable) [n].pwchararg = va_arg (ap, wchar_t *);
773 break;
774 }
775 }
776 }
777