Home | History | Annotate | Line # | Download | only in include
      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_
     52 typedef	_BSD_SIZE_T_	size_t;
     53 #undef	_BSD_SIZE_T_
     54 #endif
     55 #ifdef	_BSD_SSIZE_T_
     56 typedef	_BSD_SSIZE_T_	ssize_t;
     57 #undef	_BSD_SSIZE_T_
     58 #endif
     59 
     60 #if defined(_POSIX_C_SOURCE)
     61 #ifndef __VA_LIST_DECLARED
     62 typedef __va_list va_list;
     63 #define __VA_LIST_DECLARED
     64 #endif
     65 #endif
     66 
     67 #include <sys/null.h>
     68 
     69 typedef 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 */
     83 struct __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  */
    113 typedef	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
    150 extern 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
    224 void	 clearerr(FILE *);
    225 int	 fclose(FILE *);
    226 int	 feof(FILE *);
    227 int	 ferror(FILE *);
    228 int	 fflush(FILE *);
    229 int	 fgetc(FILE *);
    230 char	*fgets(char * __restrict, int, FILE * __restrict);
    231 FILE	*fopen(const char * __restrict , const char * __restrict);
    232 int	 fprintf(FILE * __restrict, const char * __restrict, ...)
    233 		__printflike(2, 3);
    234 int	 fputc(int, FILE *);
    235 int	 fputs(const char * __restrict, FILE * __restrict);
    236 size_t	 fread(void * __restrict, size_t, size_t, FILE * __restrict);
    237 FILE	*freopen(const char * __restrict, const char * __restrict,
    238 	    FILE * __restrict);
    239 int	 fscanf(FILE * __restrict, const char * __restrict, ...)
    240 		__scanflike(2, 3);
    241 int	 fseek(FILE *, long, int);
    242 long	 ftell(FILE *);
    243 size_t	 fwrite(const void * __restrict, size_t, size_t, FILE * __restrict);
    244 int	 getc(FILE *);
    245 int	 getchar(void);
    246 void	 perror(const char *);
    247 int	 printf(const char * __restrict, ...)
    248 		__printflike(1, 2);
    249 int	 putc(int, FILE *);
    250 int	 putchar(int);
    251 int	 puts(const char *);
    252 int	 remove(const char *);
    253 void	 rewind(FILE *);
    254 int	 scanf(const char * __restrict, ...)
    255 		__scanflike(1, 2);
    256 void	 setbuf(FILE * __restrict, char * __restrict);
    257 int	 setvbuf(FILE * __restrict, char * __restrict, int, size_t);
    258 int	 sscanf(const char * __restrict, const char * __restrict, ...)
    259 		__scanflike(2, 3);
    260 FILE	*tmpfile(void);
    261 int	 ungetc(int, FILE *);
    262 int	 vfprintf(FILE * __restrict, const char * __restrict, __va_list)
    263 		__printflike(2, 0);
    264 int	 vprintf(const char * __restrict, __va_list)
    265 		__printflike(1, 0);
    266 
    267 #ifndef __AUDIT__
    268 char	*gets(char *);
    269 int	 sprintf(char * __restrict, const char * __restrict, ...)
    270 		__printflike(2, 3);
    271 char	*tmpnam(char *);
    272 int	 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)
    278 int	 rename (const char *, const char *) __RENAME(__posix_rename);
    279 #else
    280 int	 rename (const char *, const char *);
    281 #endif
    282 __END_DECLS
    283 
    284 #ifndef __LIBC12_SOURCE__
    285 int	 fgetpos(FILE * __restrict, fpos_t * __restrict) __RENAME(__fgetpos50);
    286 int	 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
    297 char	*ctermid(char *);
    298 #ifndef __CUSERID_DECLARED
    299 #define __CUSERID_DECLARED
    300 /* also declared in unistd.h */
    301 char	*cuserid(char *);
    302 #endif /* __CUSERID_DECLARED */
    303 FILE	*fdopen(int, const char *);
    304 int	 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
    314 void	flockfile(FILE *);
    315 int	ftrylockfile(FILE *);
    316 void	funlockfile(FILE *);
    317 int	getc_unlocked(FILE *);
    318 int	getchar_unlocked(void);
    319 int	putc_unlocked(int, FILE *);
    320 int	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
    330 int	 pclose(FILE *);
    331 FILE	*popen(const char *, const char *);
    332 __END_DECLS
    333 #endif
    334 #ifdef _NETBSD_SOURCE
    335 __BEGIN_DECLS
    336 FILE	*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
    347 int	 snprintf(char * __restrict, size_t, const char * __restrict, ...)
    348 		__printflike(3, 4);
    349 int	 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
    360 int	 getw(FILE *);
    361 int	 putw(int, FILE *);
    362 
    363 #ifndef __AUDIT__
    364 char	*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
    375 typedef	__off_t		off_t;
    376 #define	off_t		__off_t
    377 #endif /* off_t */
    378 
    379 __BEGIN_DECLS
    380 int	 fseeko(FILE *, off_t, int);
    381 off_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
    390 int	 vscanf(const char * __restrict, __va_list)
    391 		__scanflike(1, 0);
    392 int	 vfscanf(FILE * __restrict, const char * __restrict, __va_list)
    393 		__scanflike(2, 0);
    394 int	 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
    412 int	 asprintf(char ** __restrict, const char * __restrict, ...)
    413 		__printflike(2, 3);
    414 char	*fgetln(FILE * __restrict, size_t * __restrict);
    415 char	*fparseln(FILE *, size_t *, size_t *, const char[3], int);
    416 int	 fpurge(FILE *);
    417 void	 setbuffer(FILE *, char *, int);
    418 int	 setlinebuf(FILE *);
    419 int	 vasprintf(char ** __restrict, const char * __restrict,
    420     __va_list)
    421 		__printflike(2, 0);
    422 const char *fmtcheck(const char *, const char *)
    423 		__format_arg(2);
    424 __END_DECLS
    425 
    426 /*
    427  * Stdio function-access interface.
    428  */
    429 __BEGIN_DECLS
    430 FILE	*funopen(const void *,
    431     int (*)(void *, char *, int),
    432     int (*)(void *, const char *, int),
    433     off_t (*)(void *, off_t, int),
    434     int (*)(void *));
    435 FILE	*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
    452 int	__srget(FILE *);
    453 int	__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__)
    462 static __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
    512 int	 vdprintf(int, const char * __restrict, __va_list)
    513 		__printflike(2, 0);
    514 int	 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
    531 FILE *fmemopen(void * __restrict, size_t, const char * __restrict);
    532 FILE *open_memstream(char **, size_t *);
    533 ssize_t	 getdelim(char ** __restrict, size_t * __restrict, int,
    534 	    FILE * __restrict);
    535 ssize_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
    541 typedef struct _locale		*locale_t;
    542 #  define __LOCALE_T_DECLARED
    543 #  endif
    544 __BEGIN_DECLS
    545 int	 fprintf_l(FILE * __restrict, locale_t, const char * __restrict, ...)
    546 		__printflike(3, 4);
    547 int	 vfprintf_l(FILE * __restrict, locale_t, const char * __restrict,
    548 		__va_list) __printflike(3, 0);
    549 int	 printf_l(locale_t, const char * __restrict, ...)
    550 		__printflike(2, 3);
    551 int	 vprintf_l(locale_t, const char * __restrict, __va_list)
    552 		__printflike(2, 0);
    553 int	 asprintf_l(char ** __restrict, locale_t, const char * __restrict, ...)
    554 		__printflike(3, 4);
    555 int	 vasprintf_l(char ** __restrict, locale_t, const char * __restrict,
    556     __va_list)
    557 		__printflike(3, 0);
    558 int	 vdprintf_l(int, locale_t, const char * __restrict, __va_list)
    559 		__printflike(3, 0);
    560 int	 dprintf_l(int, locale_t, const char * __restrict, ...)
    561 		__printflike(3, 4);
    562 int	 snprintf_l(char * __restrict, size_t, locale_t,
    563 		    const char * __restrict, ...) __printflike(4, 5);
    564 int	 vsnprintf_l(char * __restrict, size_t, locale_t,
    565 		     const char * __restrict, __va_list) __printflike(4, 0);
    566 #ifndef __AUDIT__
    567 int	 sprintf_l(char * __restrict, locale_t, const char * __restrict, ...)
    568 		   __printflike(3, 4);
    569 int	 vsprintf_l(char * __restrict, locale_t, const char * __restrict,
    570 		    __va_list) __printflike(3, 0);
    571 #endif
    572 
    573 int	 fscanf_l(FILE * __restrict, locale_t, const char * __restrict, ...)
    574     __scanflike(3, 4);
    575 int	 scanf_l(locale_t, const char * __restrict, ...)
    576     __scanflike(2, 3);
    577 int	 sscanf_l(const char * __restrict, locale_t,
    578     const char * __restrict, ...) __scanflike(3, 4);
    579 int	 vscanf_l(locale_t, const char * __restrict, __va_list)
    580     __scanflike(2, 0);
    581 int	 vfscanf_l(FILE * __restrict, locale_t, const char * __restrict,
    582     __va_list) __scanflike(3, 0);
    583 int	 vsscanf_l(const char * __restrict, locale_t, const char * __restrict,
    584     __va_list) __scanflike(3, 0);
    585 #ifdef _NETBSD_SOURCE
    586 int	snprintf_ss(char *restrict, size_t, const char * __restrict, ...)
    587     __printflike(3, 4);
    588 int	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_ */
    599