1/* $NetBSD: stdio.h,v 1.104 2021/09/11 20:05:33 rillig Exp $ */
2
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 * @(#)stdio.h 8.5 (Berkeley) 4/29/95
35 */
36
37#ifndef _STDIO_H_
38#define _STDIO_H_
39
40#include <sys/cdefs.h>
41#include <sys/featuretest.h>
42#include <sys/ansi.h>
43
44#if (!defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
45 !defined(_XOPEN_SOURCE)) || ((_POSIX_C_SOURCE - 0) >= 200809L || \
46 defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
47 (__cplusplus - 0) >= 201103L || defined(_NETBSD_SOURCE))
48#define __STDIO_C99_FEATURES
49#endif
50
51#ifdef _BSD_SIZE_T_
52typedef _BSD_SIZE_T_ size_t;
53#undef _BSD_SIZE_T_
54#endif
55#ifdef _BSD_SSIZE_T_
56typedef _BSD_SSIZE_T_ ssize_t;
57#undef _BSD_SSIZE_T_
58#endif
59
60#if defined(_POSIX_C_SOURCE)
61#ifndef __VA_LIST_DECLARED
62typedef __va_list va_list;
63#define __VA_LIST_DECLARED
64#endif
65#endif
66
67#include <sys/null.h>
68
69typedef struct __sfpos {
70 __off_t _pos;
71 __mbstate_t _mbstate_in, _mbstate_out;
72} fpos_t;
73
74#define _FSTDIO /* Define for new stdio with functions. */
75
76/*
77 * NB: to fit things in six character monocase externals, the stdio
78 * code uses the prefix `__s' for stdio objects, typically followed
79 * by a three-character attempt at a mnemonic.
80 */
81
82/* stdio buffers */
83struct __sbuf {
84 unsigned char *_base;
85 int _size;
86};
87
88/*
89 * stdio state variables.
90 *
91 * The following always hold:
92 *
93 * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
94 * _lbfsize is -_bf._size, else _lbfsize is 0
95 * if _flags&__SRD, _w is 0
96 * if _flags&__SWR, _r is 0
97 *
98 * This ensures that the getc and putc macros (or inline functions) never
99 * try to write or read from a file that is in `read' or `write' mode.
100 * (Moreover, they can, and do, automatically switch from read mode to
101 * write mode, and back, on "r+" and "w+" files.)
102 *
103 * _lbfsize is used only to make the inline line-buffered output stream
104 * code as compact as possible.
105 *
106 * _ub (via _ext and struct __sfileext), _up, and _ur are used when ungetc()
107 * pushes back more characters than fit in the current _bf, or when ungetc()
108 * pushes back a character that does not match the previous one in _bf.
109 * When this happens, _ext._base becomes non-nil (i.e., a stream has ungetc()
110 * data iff _ub._base != NULL) and _up and _ur save the current values of _p
111 * and _r.
112 */
113typedef struct __sFILE {
114 unsigned char *_p; /* current position in (some) buffer */
115 int _r; /* read space left for getc() */
116 int _w; /* write space left for putc() */
117 unsigned short _flags; /* flags, below; this FILE is free if 0 */
118 short _file; /* fileno, if Unix descriptor, else -1 */
119 struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
120 int _lbfsize; /* 0 or -_bf._size, for inline putc */
121
122 /* operations */
123 void *_cookie; /* cookie passed to io functions */
124 int (*_close)(void *);
125 ssize_t (*_read) (void *, void *, size_t);
126 __off_t (*_seek) (void *, __off_t, int);
127 ssize_t (*_write)(void *, const void *, size_t);
128
129 /* file extension */
130 struct __sbuf _ext;
131
132 /* separate buffer for long sequences of ungetc() */
133 unsigned char *_up; /* saved _p when _p is doing ungetc data */
134 int _ur; /* saved _r when _r is counting ungetc data */
135
136 /* tricks to meet minimum requirements even when malloc() fails */
137 unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
138 unsigned char _nbuf[1]; /* guarantee a getc() buffer */
139
140 int (*_flush)(void *);
141 /* Formerly used by fgetln/fgetwln; kept for binary compatibility */
142 char _lb_unused[sizeof(struct __sbuf) - sizeof(int (*)(void *))];
143
144 /* Unix stdio files get aligned to block boundaries on fseek() */
145 int _blksize; /* stat.st_blksize (may be != _bf._size) */
146 __off_t _offset; /* current lseek offset */
147} FILE;
148
149__BEGIN_DECLS
150extern FILE __sF[3];
151__END_DECLS
152
153#define __SLBF 0x0001 /* line buffered */
154#define __SNBF 0x0002 /* unbuffered */
155#define __SRD 0x0004 /* OK to read */
156#define __SWR 0x0008 /* OK to write */
157 /* RD and WR are never simultaneously asserted */
158#define __SRW 0x0010 /* open for reading & writing */
159#define __SEOF 0x0020 /* found EOF */
160#define __SERR 0x0040 /* found error */
161#define __SMBF 0x0080 /* _buf is from malloc */
162#define __SAPP 0x0100 /* fdopen()ed in append mode */
163#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
164#define __SOPT 0x0400 /* do fseek() optimization */
165#define __SNPT 0x0800 /* do not do fseek() optimization */
166#define __SOFF 0x1000 /* set iff _offset is in fact correct */
167#define __SMOD 0x2000 /* true => fgetln modified _p text */
168#define __SALC 0x4000 /* allocate string space dynamically */
169
170/*
171 * The following three definitions are for ANSI C, which took them
172 * from System V, which brilliantly took internal interface macros and
173 * made them official arguments to setvbuf(), without renaming them.
174 * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
175 *
176 * Although numbered as their counterparts above, the implementation
177 * does not rely on this.
178 */
179#define _IOFBF 0 /* setvbuf should set fully buffered */
180#define _IOLBF 1 /* setvbuf should set line buffered */
181#define _IONBF 2 /* setvbuf should set unbuffered */
182
183#define BUFSIZ 1024 /* size of buffer used by setbuf */
184#define EOF (-1)
185
186/*
187 * FOPEN_MAX is a minimum maximum, and is the number of streams that
188 * stdio can provide without attempting to allocate further resources
189 * (which could fail). Do not use this for anything.
190 */
191 /* must be == _POSIX_STREAM_MAX <limits.h> */
192#define FOPEN_MAX 20 /* must be <= OPEN_MAX <sys/syslimits.h> */
193#define FILENAME_MAX 1024 /* must be <= PATH_MAX <sys/syslimits.h> */
194
195/* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
196#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
197#define P_tmpdir "/tmp/"
198#endif
199#define L_tmpnam 1024 /* XXX must be == PATH_MAX */
200/* Always ensure that this is consistent with <limits.h> */
201#ifndef TMP_MAX
202#define TMP_MAX 308915776 /* Legacy */
203#endif
204
205/* Always ensure that these are consistent with <fcntl.h> and <unistd.h>! */
206#ifndef SEEK_SET
207#define SEEK_SET 0 /* set file offset to offset */
208#endif
209#ifndef SEEK_CUR
210#define SEEK_CUR 1 /* set file offset to current plus offset */
211#endif
212#ifndef SEEK_END
213#define SEEK_END 2 /* set file offset to EOF plus offset */
214#endif
215
216#define stdin (&__sF[0])
217#define stdout (&__sF[1])
218#define stderr (&__sF[2])
219
220/*
221 * Functions defined in ANSI C standard.
222 */
223__BEGIN_DECLS
224void clearerr(FILE *);
225int fclose(FILE *);
226int feof(FILE *);
227int ferror(FILE *);
228int fflush(FILE *);
229int fgetc(FILE *);
230char *fgets(char * __restrict, int, FILE * __restrict);
231FILE *fopen(const char * __restrict , const char * __restrict);
232int fprintf(FILE * __restrict, const char * __restrict, ...)
233 __printflike(2, 3);
234int fputc(int, FILE *);
235int fputs(const char * __restrict, FILE * __restrict);
236size_t fread(void * __restrict, size_t, size_t, FILE * __restrict);
237FILE *freopen(const char * __restrict, const char * __restrict,
238 FILE * __restrict);
239int fscanf(FILE * __restrict, const char * __restrict, ...)
240 __scanflike(2, 3);
241int fseek(FILE *, long, int);
242long ftell(FILE *);
243size_t fwrite(const void * __restrict, size_t, size_t, FILE * __restrict);
244int getc(FILE *);
245int getchar(void);
246void perror(const char *);
247int printf(const char * __restrict, ...)
248 __printflike(1, 2);
249int putc(int, FILE *);
250int putchar(int);
251int puts(const char *);
252int remove(const char *);
253void rewind(FILE *);
254int scanf(const char * __restrict, ...)
255 __scanflike(1, 2);
256void setbuf(FILE * __restrict, char * __restrict);
257int setvbuf(FILE * __restrict, char * __restrict, int, size_t);
258int sscanf(const char * __restrict, const char * __restrict, ...)
259 __scanflike(2, 3);
260FILE *tmpfile(void);
261int ungetc(int, FILE *);
262int vfprintf(FILE * __restrict, const char * __restrict, __va_list)
263 __printflike(2, 0);
264int vprintf(const char * __restrict, __va_list)
265 __printflike(1, 0);
266
267#ifndef __AUDIT__
268char *gets(char *);
269int sprintf(char * __restrict, const char * __restrict, ...)
270 __printflike(2, 3);
271char *tmpnam(char *);
272int vsprintf(char * __restrict, const char * __restrict,
273 __va_list)
274 __printflike(2, 0);
275#endif
276
277#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)
278int rename (const char *, const char *) __RENAME(__posix_rename);
279#else
280int rename (const char *, const char *);
281#endif
282__END_DECLS
283
284#ifndef __LIBC12_SOURCE__
285int fgetpos(FILE * __restrict, fpos_t * __restrict) __RENAME(__fgetpos50);
286int fsetpos(FILE *, const fpos_t *) __RENAME(__fsetpos50);
287#endif
288/*
289 * IEEE Std 1003.1-90
290 */
291#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
292 defined(_NETBSD_SOURCE)
293#define L_ctermid 1024 /* size for ctermid(); PATH_MAX */
294#define L_cuserid 9 /* size for cuserid(); UT_NAMESIZE + 1 */
295
296__BEGIN_DECLS
297char *ctermid(char *);
298#ifndef __CUSERID_DECLARED
299#define __CUSERID_DECLARED
300/* also declared in unistd.h */
301char *cuserid(char *);
302#endif /* __CUSERID_DECLARED */
303FILE *fdopen(int, const char *);
304int fileno(FILE *);
305__END_DECLS
306#endif /* not ANSI */
307
308/*
309 * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
310 */
311#if defined(__STDIO_C99_FEATURES) || (_POSIX_C_SOURCE - 0) >= 199506L || \
312 (_XOPEN_SOURCE - 0) >= 500 || defined(_REENTRANT)
313__BEGIN_DECLS
314void flockfile(FILE *);
315int ftrylockfile(FILE *);
316void funlockfile(FILE *);
317int getc_unlocked(FILE *);
318int getchar_unlocked(void);
319int putc_unlocked(int, FILE *);
320int putchar_unlocked(int);
321__END_DECLS
322#endif /* C99 || _POSIX_C_SOURCE >= 199506 || _XOPEN_SOURCE >= 500 || ... */
323
324/*
325 * Functions defined in POSIX 1003.2 and XPG2 or later.
326 */
327#if (_POSIX_C_SOURCE - 0) >= 2 || (_XOPEN_SOURCE - 0) >= 2 || \
328 defined(_NETBSD_SOURCE)
329__BEGIN_DECLS
330int pclose(FILE *);
331FILE *popen(const char *, const char *);
332__END_DECLS
333#endif
334#ifdef _NETBSD_SOURCE
335__BEGIN_DECLS
336FILE *popenve(const char *, char *const *, char *const *, const char *);
337__END_DECLS
338#endif
339
340/*
341 * Functions defined in XPG4.2, ISO C99, POSIX 1003.1-2001 or later.
342 */
343#if defined(__STDIO_C99_FEATURES) || (_POSIX_C_SOURCE - 0) >= 200112L || \
344 (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
345 (_XOPEN_SOURCE - 0) >= 500
346__BEGIN_DECLS
347int snprintf(char * __restrict, size_t, const char * __restrict, ...)
348 __printflike(3, 4);
349int vsnprintf(char * __restrict, size_t, const char * __restrict,
350 __va_list)
351 __printflike(3, 0);
352__END_DECLS
353#endif
354
355/*
356 * Functions defined in XPG4.2.
357 */
358#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
359__BEGIN_DECLS
360int getw(FILE *);
361int putw(int, FILE *);
362
363#ifndef __AUDIT__
364char *tempnam(const char *, const char *);
365#endif
366__END_DECLS
367#endif
368
369/*
370 * X/Open CAE Specification Issue 5 Version 2
371 */
372#if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 500 || \
373 defined(_NETBSD_SOURCE)
374#ifndef off_t
375typedef __off_t off_t;
376#define off_t __off_t
377#endif /* off_t */
378
379__BEGIN_DECLS
380int fseeko(FILE *, off_t, int);
381off_t ftello(FILE *);
382__END_DECLS
383#endif /* (_POSIX_C_SOURCE - 0) >= 200112L || _XOPEN_SOURCE >= 500 || ... */
384
385/*
386 * Functions defined in ISO C99.
387 */
388#if defined(__STDIO_C99_FEATURES)
389__BEGIN_DECLS
390int vscanf(const char * __restrict, __va_list)
391 __scanflike(1, 0);
392int vfscanf(FILE * __restrict, const char * __restrict, __va_list)
393 __scanflike(2, 0);
394int vsscanf(const char * __restrict, const char * __restrict,
395 __va_list)
396 __scanflike(2, 0);
397__END_DECLS
398#endif /* C99 */
399
400/*
401 * Routines that are purely local.
402 */
403#if defined(_NETBSD_SOURCE)
404
405#define FPARSELN_UNESCESC 0x01
406#define FPARSELN_UNESCCONT 0x02
407#define FPARSELN_UNESCCOMM 0x04
408#define FPARSELN_UNESCREST 0x08
409#define FPARSELN_UNESCALL 0x0f
410
411__BEGIN_DECLS
412int asprintf(char ** __restrict, const char * __restrict, ...)
413 __printflike(2, 3);
414char *fgetln(FILE * __restrict, size_t * __restrict);
415char *fparseln(FILE *, size_t *, size_t *, const char[3], int);
416int fpurge(FILE *);
417void setbuffer(FILE *, char *, int);
418int setlinebuf(FILE *);
419int vasprintf(char ** __restrict, const char * __restrict,
420 __va_list)
421 __printflike(2, 0);
422const char *fmtcheck(const char *, const char *)
423 __format_arg(2);
424__END_DECLS
425
426/*
427 * Stdio function-access interface.
428 */
429__BEGIN_DECLS
430FILE *funopen(const void *,
431 int (*)(void *, char *, int),
432 int (*)(void *, const char *, int),
433 off_t (*)(void *, off_t, int),
434 int (*)(void *));
435FILE *funopen2(const void *,
436 ssize_t (*)(void *, void *, size_t),
437 ssize_t (*)(void *, const void *, size_t),
438 off_t (*)(void *, off_t, int),
439 int (*)(void *),
440 int (*)(void *));
441__END_DECLS
442#define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
443#define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
444#define fropen2(cookie, fn) funopen2(cookie, fn, 0, 0, 0, 0)
445#define fwopen2(cookie, fn) funopen2(cookie, 0, fn, 0, 0, 0)
446#endif /* _NETBSD_SOURCE */
447
448/*
449 * Functions internal to the implementation.
450 */
451__BEGIN_DECLS
452int __srget(FILE *);
453int __swbuf(int, FILE *);
454__END_DECLS
455
456/*
457 * The __sfoo macros are here so that we can
458 * define function versions in the C library.
459 */
460#define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
461#if defined(__GNUC__) && defined(__STDC__)
462static __inline int __sputc(int _c, FILE *_p) {
463 if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
464 return *_p->_p++ = (unsigned char)_c;
465 else
466 return __swbuf(_c, _p);
467}
468#else
469/*
470 * This has been tuned to generate reasonable code on the vax using pcc.
471 */
472#define __sputc(c, p) \
473 (--(p)->_w < 0 ? \
474 (p)->_w >= (p)->_lbfsize ? \
475 (*(p)->_p = (c)), *(p)->_p != '\n' ? \
476 (int)*(p)->_p++ : \
477 __swbuf('\n', p) : \
478 __swbuf((int)(c), p) : \
479 (*(p)->_p = (c), (int)*(p)->_p++))
480#endif
481
482#define __sfeof(p) (((p)->_flags & __SEOF) != 0)
483#define __sferror(p) (((p)->_flags & __SERR) != 0)
484#define __sclearerr(p) ((void)((p)->_flags &= (unsigned short)~(__SERR|__SEOF)))
485#define __sfileno(p) \
486 ((p)->_file == -1 ? -1 : (int)(unsigned short)(p)->_file)
487
488#if !defined(__lint__) && !defined(__cplusplus)
489#if !defined(_REENTRANT) && !defined(_PTHREADS)
490#define feof(p) __sfeof(p)
491#define ferror(p) __sferror(p)
492#define clearerr(p) __sclearerr(p)
493
494#define getc(fp) __sgetc(fp)
495#define putc(x, fp) __sputc(x, fp)
496#endif /* !_REENTRANT && !_PTHREADS */
497
498#define getchar() getc(stdin)
499#define putchar(x) putc(x, stdout)
500
501#endif /* !__lint__ && !__cplusplus */
502
503#if (defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
504 defined(_NETBSD_SOURCE)) && !defined(__cplusplus)
505#if !defined(_REENTRANT) && !defined(_PTHREADS)
506#define fileno(p) __sfileno(p)
507#endif /* !_REENTRANT && !_PTHREADS */
508#endif /* !_ANSI_SOURCE && !__cplusplus*/
509
510#if (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE)
511__BEGIN_DECLS
512int vdprintf(int, const char * __restrict, __va_list)
513 __printflike(2, 0);
514int dprintf(int, const char * __restrict, ...)
515 __printflike(2, 3);
516__END_DECLS
517#endif /* (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE) */
518
519#if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
520 defined(_REENTRANT) || defined(_NETBSD_SOURCE) && !defined(__cplusplus)
521#define getc_unlocked(fp) __sgetc(fp)
522#define putc_unlocked(x, fp) __sputc(x, fp)
523
524#define getchar_unlocked() getc_unlocked(stdin)
525#define putchar_unlocked(x) putc_unlocked(x, stdout)
526#endif /* _POSIX_C_SOURCE >= 199506 || _XOPEN_SOURCE >= 500 || _REENTRANT... */
527
528#if (_POSIX_C_SOURCE - 0) >= 200809L || (_XOPEN_SOURCE - 0) >= 700 || \
529 defined(_NETBSD_SOURCE)
530__BEGIN_DECLS
531FILE *fmemopen(void * __restrict, size_t, const char * __restrict);
532FILE *open_memstream(char **, size_t *);
533ssize_t getdelim(char ** __restrict, size_t * __restrict, int,
534 FILE * __restrict);
535ssize_t getline(char ** __restrict, size_t * __restrict, FILE * __restrict);
536__END_DECLS
537#endif
538
539#if (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE)
540# ifndef __LOCALE_T_DECLARED
541typedef struct _locale *locale_t;
542# define __LOCALE_T_DECLARED
543# endif
544__BEGIN_DECLS
545int fprintf_l(FILE * __restrict, locale_t, const char * __restrict, ...)
546 __printflike(3, 4);
547int vfprintf_l(FILE * __restrict, locale_t, const char * __restrict,
548 __va_list) __printflike(3, 0);
549int printf_l(locale_t, const char * __restrict, ...)
550 __printflike(2, 3);
551int vprintf_l(locale_t, const char * __restrict, __va_list)
552 __printflike(2, 0);
553int asprintf_l(char ** __restrict, locale_t, const char * __restrict, ...)
554 __printflike(3, 4);
555int vasprintf_l(char ** __restrict, locale_t, const char * __restrict,
556 __va_list)
557 __printflike(3, 0);
558int vdprintf_l(int, locale_t, const char * __restrict, __va_list)
559 __printflike(3, 0);
560int dprintf_l(int, locale_t, const char * __restrict, ...)
561 __printflike(3, 4);
562int snprintf_l(char * __restrict, size_t, locale_t,
563 const char * __restrict, ...) __printflike(4, 5);
564int vsnprintf_l(char * __restrict, size_t, locale_t,
565 const char * __restrict, __va_list) __printflike(4, 0);
566#ifndef __AUDIT__
567int sprintf_l(char * __restrict, locale_t, const char * __restrict, ...)
568 __printflike(3, 4);
569int vsprintf_l(char * __restrict, locale_t, const char * __restrict,
570 __va_list) __printflike(3, 0);
571#endif
572
573int fscanf_l(FILE * __restrict, locale_t, const char * __restrict, ...)
574 __scanflike(3, 4);
575int scanf_l(locale_t, const char * __restrict, ...)
576 __scanflike(2, 3);
577int sscanf_l(const char * __restrict, locale_t,
578 const char * __restrict, ...) __scanflike(3, 4);
579int vscanf_l(locale_t, const char * __restrict, __va_list)
580 __scanflike(2, 0);
581int vfscanf_l(FILE * __restrict, locale_t, const char * __restrict,
582 __va_list) __scanflike(3, 0);
583int vsscanf_l(const char * __restrict, locale_t, const char * __restrict,
584 __va_list) __scanflike(3, 0);
585#ifdef _NETBSD_SOURCE
586int snprintf_ss(char *restrict, size_t, const char * __restrict, ...)
587 __printflike(3, 4);
588int vsnprintf_ss(char *restrict, size_t, const char * __restrict, __va_list)
589 __printflike(3, 0);
590#endif
591__END_DECLS
592#endif
593
594#if _FORTIFY_SOURCE > 0
595#include <ssp/stdio.h>
596#endif
597
598#endif /* _STDIO_H_ */