include/stdio.h

   1 /*      $NetBSD: stdio.h,v 1.96 2015/03/24 07:44:52 wiz 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 #ifdef  _BSD_SIZE_T_
  45 typedef _BSD_SIZE_T_    size_t;
  46 #undef  _BSD_SIZE_T_
  47 #endif
  48 #ifdef  _BSD_SSIZE_T_
  49 typedef _BSD_SSIZE_T_   ssize_t;
  50 #undef  _BSD_SSIZE_T_
  51 #endif
  52
  53 #if defined(_POSIX_C_SOURCE)
  54 #ifndef __VA_LIST_DECLARED
  55 typedef __va_list va_list;
  56 #define __VA_LIST_DECLARED
  57 #endif
  58 #endif
  59
  60 #include <sys/null.h>
  61
  62 /*
  63  * This is fairly grotesque, but pure ANSI code must not inspect the
  64  * innards of an fpos_t anyway.  The library internally uses off_t,
  65  * which we assume is exactly as big as eight chars.
  66  */
  67 typedef struct __sfpos {
  68         __off_t _pos;
  69         __mbstate_t _mbstate_in, _mbstate_out;
  70 } fpos_t;
  71
  72 #define _FSTDIO                 /* Define for new stdio with functions. */
  73
  74 /*
  75  * NB: to fit things in six character monocase externals, the stdio
  76  * code uses the prefix `__s' for stdio objects, typically followed
  77  * by a three-character attempt at a mnemonic.
  78  */
  79
  80 /* stdio buffers */
  81 struct __sbuf {
  82         unsigned char *_base;
  83         int     _size;
  84 };
  85
  86 /*
  87  * stdio state variables.
  88  *
  89  * The following always hold:
  90  *
  91  *      if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
  92  *              _lbfsize is -_bf._size, else _lbfsize is 0
  93  *      if _flags&__SRD, _w is 0
  94  *      if _flags&__SWR, _r is 0
  95  *
  96  * This ensures that the getc and putc macros (or inline functions) never
  97  * try to write or read from a file that is in `read' or `write' mode.
  98  * (Moreover, they can, and do, automatically switch from read mode to
  99  * write mode, and back, on "r+" and "w+" files.)
 100  *
 101  * _lbfsize is used only to make the inline line-buffered output stream
 102  * code as compact as possible.
 103  *
 104  * _ub, _up, and _ur are used when ungetc() pushes back more characters
 105  * than fit in the current _bf, or when ungetc() pushes back a character
 106  * that does not match the previous one in _bf.  When this happens,
 107  * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
 108  * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
 109  *
 110  * NB: see WARNING above before changing the layout of this structure!
 111  */
 112 typedef struct __sFILE {
 113         unsigned char *_p;      /* current position in (some) buffer */
 114         int     _r;             /* read space left for getc() */
 115         int     _w;             /* write space left for putc() */
 116         unsigned short _flags;  /* flags, below; this FILE is free if 0 */
 117         short   _file;          /* fileno, if Unix descriptor, else -1 */
 118         struct  __sbuf _bf;     /* the buffer (at least 1 byte, if !NULL) */
 119         int     _lbfsize;       /* 0 or -_bf._size, for inline putc */
 120
 121         /* operations */
 122         void    *_cookie;       /* cookie passed to io functions */
 123         int     (*_close)(void *);
 124         ssize_t (*_read) (void *, void *, size_t);
 125         __off_t (*_seek) (void *, __off_t, int);
 126         ssize_t (*_write)(void *, const void *, size_t);
 127
 128         /* file extension */
 129         struct  __sbuf _ext;
 130
 131         /* separate buffer for long sequences of ungetc() */
 132         unsigned char *_up;     /* saved _p when _p is doing ungetc data */
 133         int     _ur;            /* saved _r when _r is counting ungetc data */
 134
 135         /* tricks to meet minimum requirements even when malloc() fails */
 136         unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
 137         unsigned char _nbuf[1]; /* guarantee a getc() buffer */
 138
 139         int     (*_flush)(void *);
 140         /* Formerly used by fgetln/fgetwln; kept for binary compatibility */
 141         char    _lb_unused[sizeof(struct __sbuf) - sizeof(int (*)(void *))];
 142
 143         /* Unix stdio files get aligned to block boundaries on fseek() */
 144         int     _blksize;       /* stat.st_blksize (may be != _bf._size) */
 145         __off_t _offset;        /* current lseek offset */
 146 } FILE;
 147
 148 __BEGIN_DECLS
 149 extern FILE __sF[3];
 150 __END_DECLS
 151
 152 #define __SLBF  0x0001          /* line buffered */
 153 #define __SNBF  0x0002          /* unbuffered */
 154 #define __SRD   0x0004          /* OK to read */
 155 #define __SWR   0x0008          /* OK to write */
 156         /* RD and WR are never simultaneously asserted */
 157 #define __SRW   0x0010          /* open for reading & writing */
 158 #define __SEOF  0x0020          /* found EOF */
 159 #define __SERR  0x0040          /* found error */
 160 #define __SMBF  0x0080          /* _buf is from malloc */
 161 #define __SAPP  0x0100          /* fdopen()ed in append mode */
 162 #define __SSTR  0x0200          /* this is an sprintf/snprintf string */
 163 #define __SOPT  0x0400          /* do fseek() optimization */
 164 #define __SNPT  0x0800          /* do not do fseek() optimization */
 165 #define __SOFF  0x1000          /* set iff _offset is in fact correct */
 166 #define __SMOD  0x2000          /* true => fgetln modified _p text */
 167 #define __SALC  0x4000          /* allocate string space dynamically */
 168
 169 /*
 170  * The following three definitions are for ANSI C, which took them
 171  * from System V, which brilliantly took internal interface macros and
 172  * made them official arguments to setvbuf(), without renaming them.
 173  * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
 174  *
 175  * Although numbered as their counterparts above, the implementation
 176  * does not rely on this.
 177  */
 178 #define _IOFBF  0               /* setvbuf should set fully buffered */
 179 #define _IOLBF  1               /* setvbuf should set line buffered */
 180 #define _IONBF  2               /* setvbuf should set unbuffered */
 181
 182 #define BUFSIZ  1024            /* size of buffer used by setbuf */
 183 #define EOF     (-1)
 184
 185 /*
 186  * FOPEN_MAX is a minimum maximum, and is the number of streams that
 187  * stdio can provide without attempting to allocate further resources
 188  * (which could fail).  Do not use this for anything.
 189  */
 190                                 /* must be == _POSIX_STREAM_MAX <limits.h> */
 191 #define FOPEN_MAX       20      /* must be <= OPEN_MAX <sys/syslimits.h> */
 192 #define FILENAME_MAX    1024    /* must be <= PATH_MAX <sys/syslimits.h> */
 193
 194 /* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
 195 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
 196 #define P_tmpdir        "/var/tmp/"
 197 #endif
 198 #define L_tmpnam        1024    /* XXX must be == PATH_MAX */
 199 /* Always ensure that this is consistent with <limits.h> */
 200 #ifndef TMP_MAX
 201 #define TMP_MAX                 308915776       /* Legacy */
 202 #endif
 203
 204 /* Always ensure that these are consistent with <fcntl.h> and <unistd.h>! */
 205 #ifndef SEEK_SET
 206 #define SEEK_SET        0       /* set file offset to offset */
 207 #endif
 208 #ifndef SEEK_CUR
 209 #define SEEK_CUR        1       /* set file offset to current plus offset */
 210 #endif
 211 #ifndef SEEK_END
 212 #define SEEK_END        2       /* set file offset to EOF plus offset */
 213 #endif
 214
 215 #define stdin   (&__sF[0])
 216 #define stdout  (&__sF[1])
 217 #define stderr  (&__sF[2])
 218
 219 /*
 220  * Functions defined in ANSI C standard.
 221  */
 222 __BEGIN_DECLS
 223 void     clearerr(FILE *);
 224 int      fclose(FILE *);
 225 int      feof(FILE *);
 226 int      ferror(FILE *);
 227 int      fflush(FILE *);
 228 int      fgetc(FILE *);
 229 char    *fgets(char * __restrict, int, FILE * __restrict);
 230 FILE    *fopen(const char * __restrict , const char * __restrict);
 231 int      fprintf(FILE * __restrict, const char * __restrict, ...)
 232                 __printflike(2, 3);
 233 int      fputc(int, FILE *);
 234 int      fputs(const char * __restrict, FILE * __restrict);
 235 size_t   fread(void * __restrict, size_t, size_t, FILE * __restrict);
 236 FILE    *freopen(const char * __restrict, const char * __restrict,
 237             FILE * __restrict);
 238 int      fscanf(FILE * __restrict, const char * __restrict, ...)
 239                 __scanflike(2, 3);
 240 int      fseek(FILE *, long, int);
 241 long     ftell(FILE *);
 242 size_t   fwrite(const void * __restrict, size_t, size_t, FILE * __restrict);
 243 int      getc(FILE *);
 244 int      getchar(void);
 245 void     perror(const char *);
 246 int      printf(const char * __restrict, ...)
 247                 __printflike(1, 2);
 248 int      putc(int, FILE *);
 249 int      putchar(int);
 250 int      puts(const char *);
 251 int      remove(const char *);
 252 void     rewind(FILE *);
 253 int      scanf(const char * __restrict, ...)
 254                 __scanflike(1, 2);
 255 void     setbuf(FILE * __restrict, char * __restrict);
 256 int      setvbuf(FILE * __restrict, char * __restrict, int, size_t);
 257 int      sscanf(const char * __restrict, const char * __restrict, ...)
 258                 __scanflike(2, 3);
 259 FILE    *tmpfile(void);
 260 int      ungetc(int, FILE *);
 261 int      vfprintf(FILE * __restrict, const char * __restrict, __va_list)
 262                 __printflike(2, 0);
 263 int      vprintf(const char * __restrict, __va_list)
 264                 __printflike(1, 0);
 265
 266 #ifndef __AUDIT__
 267 char    *gets(char *);
 268 int      sprintf(char * __restrict, const char * __restrict, ...)
 269                 __printflike(2, 3);
 270 char    *tmpnam(char *);
 271 int      vsprintf(char * __restrict, const char * __restrict,
 272     __va_list)
 273                 __printflike(2, 0);
 274 #endif
 275
 276 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)
 277 int      rename (const char *, const char *) __RENAME(__posix_rename);
 278 #else
 279 int      rename (const char *, const char *);
 280 #endif
 281 __END_DECLS
 282
 283 #ifndef __LIBC12_SOURCE__
 284 int      fgetpos(FILE * __restrict, fpos_t * __restrict) __RENAME(__fgetpos50);
 285 int      fsetpos(FILE *, const fpos_t *) __RENAME(__fsetpos50);
 286 #endif
 287 /*
 288  * IEEE Std 1003.1-90
 289  */
 290 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
 291     defined(_NETBSD_SOURCE)
 292 #define L_ctermid       1024    /* size for ctermid(); PATH_MAX */
 293 #define L_cuserid       9       /* size for cuserid(); UT_NAMESIZE + 1 */
 294
 295 __BEGIN_DECLS
 296 char    *ctermid(char *);
 297 #ifndef __CUSERID_DECLARED
 298 #define __CUSERID_DECLARED
 299 /* also declared in unistd.h */
 300 char    *cuserid(char *);
 301 #endif /* __CUSERID_DECLARED */
 302 FILE    *fdopen(int, const char *);
 303 int      fileno(FILE *);
 304 __END_DECLS
 305 #endif /* not ANSI */
 306
 307 /*
 308  * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
 309  */
 310 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
 311     defined(_REENTRANT) || defined(_NETBSD_SOURCE)
 312 __BEGIN_DECLS
 313 void    flockfile(FILE *);
 314 int     ftrylockfile(FILE *);
 315 void    funlockfile(FILE *);
 316 int     getc_unlocked(FILE *);
 317 int     getchar_unlocked(void);
 318 int     putc_unlocked(int, FILE *);
 319 int     putchar_unlocked(int);
 320 __END_DECLS
 321 #endif /* _POSIX_C_SOURCE >= 1995056 || _XOPEN_SOURCE >= 500 || ... */
 322
 323 /*
 324  * Functions defined in POSIX 1003.2 and XPG2 or later.
 325  */
 326 #if (_POSIX_C_SOURCE - 0) >= 2 || (_XOPEN_SOURCE - 0) >= 2 || \
 327     defined(_NETBSD_SOURCE)
 328 __BEGIN_DECLS
 329 int      pclose(FILE *);
 330 FILE    *popen(const char *, const char *);
 331 __END_DECLS
 332 #endif
 333 #ifdef _NETBSD_SOURCE
 334 __BEGIN_DECLS
 335 FILE    *popenve(const char *, char *const *, char *const *, const char *);
 336 __END_DECLS
 337 #endif
 338
 339 /*
 340  * Functions defined in ISO XPG4.2, ISO C99, POSIX 1003.1-2001 or later.
 341  */
 342 #if ((__STDC_VERSION__ - 0) >= 199901L) || \
 343     ((_POSIX_C_SOURCE - 0) >= 200112L) || \
 344     (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
 345     ((_XOPEN_SOURCE - 0) >= 500) || \
 346     defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
 347 __BEGIN_DECLS
 348 int      snprintf(char * __restrict, size_t, const char * __restrict, ...)
 349                 __printflike(3, 4);
 350 int      vsnprintf(char * __restrict, size_t, const char * __restrict,
 351             __va_list)
 352                 __printflike(3, 0);
 353 __END_DECLS
 354 #endif
 355
 356 /*
 357  * Functions defined in XPG4.2.
 358  */
 359 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
 360 __BEGIN_DECLS
 361 int      getw(FILE *);
 362 int      putw(int, FILE *);
 363
 364 #ifndef __AUDIT__
 365 char    *tempnam(const char *, const char *);
 366 #endif
 367 __END_DECLS
 368 #endif
 369
 370 /*
 371  * X/Open CAE Specification Issue 5 Version 2
 372  */
 373 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 500 || \
 374     defined(_NETBSD_SOURCE)
 375 #ifndef off_t
 376 typedef __off_t         off_t;
 377 #define off_t           __off_t
 378 #endif /* off_t */
 379
 380 __BEGIN_DECLS
 381 int      fseeko(FILE *, off_t, int);
 382 off_t    ftello(FILE *);
 383 __END_DECLS
 384 #endif /* (_POSIX_C_SOURCE - 0) >= 200112L || _XOPEN_SOURCE >= 500 || ... */
 385
 386 /*
 387  * Functions defined in ISO C99.  Still put under _NETBSD_SOURCE due to
 388  * backward compatible.
 389  */
 390 #if defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
 391 __BEGIN_DECLS
 392 int      vscanf(const char * __restrict, __va_list)
 393                 __scanflike(1, 0);
 394 int      vfscanf(FILE * __restrict, const char * __restrict, __va_list)
 395                 __scanflike(2, 0);
 396 int      vsscanf(const char * __restrict, const char * __restrict,
 397     __va_list)
 398     __scanflike(2, 0);
 399 __END_DECLS
 400 #endif /* _ISOC99_SOURCE || _NETBSD_SOURCE */
 401
 402 /*
 403  * Routines that are purely local.
 404  */
 405 #if defined(_NETBSD_SOURCE)
 406
 407 #define FPARSELN_UNESCESC       0x01
 408 #define FPARSELN_UNESCCONT      0x02
 409 #define FPARSELN_UNESCCOMM      0x04
 410 #define FPARSELN_UNESCREST      0x08
 411 #define FPARSELN_UNESCALL       0x0f
 412
 413 __BEGIN_DECLS
 414 int      asprintf(char ** __restrict, const char * __restrict, ...)
 415                 __printflike(2, 3);
 416 char    *fgetln(FILE * __restrict, size_t * __restrict);
 417 char    *fparseln(FILE *, size_t *, size_t *, const char[3], int);
 418 int      fpurge(FILE *);
 419 void     setbuffer(FILE *, char *, int);
 420 int      setlinebuf(FILE *);
 421 int      vasprintf(char ** __restrict, const char * __restrict,
 422     __va_list)
 423                 __printflike(2, 0);
 424 const char *fmtcheck(const char *, const char *)
 425                 __format_arg(2);
 426 __END_DECLS
 427
 428 /*
 429  * Stdio function-access interface.
 430  */
 431 __BEGIN_DECLS
 432 FILE    *funopen(const void *,
 433     int (*)(void *, char *, int),
 434     int (*)(void *, const char *, int),
 435     off_t (*)(void *, off_t, int),
 436     int (*)(void *));
 437 FILE    *funopen2(const void *,
 438     ssize_t (*)(void *, void *, size_t),
 439     ssize_t (*)(void *, const void *, size_t),
 440     off_t (*)(void *, off_t, int),
 441     int (*)(void *),
 442     int (*)(void *));
 443 __END_DECLS
 444 #define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
 445 #define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
 446 #define fropen2(cookie, fn) funopen2(cookie, fn, 0, 0, 0, 0)
 447 #define fwopen2(cookie, fn) funopen2(cookie, 0, fn, 0, 0, 0)
 448 #endif /* _NETBSD_SOURCE */
 449
 450 /*
 451  * Functions internal to the implementation.
 452  */
 453 __BEGIN_DECLS
 454 int     __srget(FILE *);
 455 int     __swbuf(int, FILE *);
 456 __END_DECLS
 457
 458 /*
 459  * The __sfoo macros are here so that we can
 460  * define function versions in the C library.
 461  */
 462 #define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
 463 #if defined(__GNUC__) && defined(__STDC__)
 464 static __inline int __sputc(int _c, FILE *_p) {
 465         if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
 466                 return *_p->_p++ = (unsigned char)_c;
 467         else
 468                 return __swbuf(_c, _p);
 469 }
 470 #else
 471 /*
 472  * This has been tuned to generate reasonable code on the vax using pcc.
 473  */
 474 #define __sputc(c, p) \
 475         (--(p)->_w < 0 ? \
 476                 (p)->_w >= (p)->_lbfsize ? \
 477                         (*(p)->_p = (c)), *(p)->_p != '\n' ? \
 478                                 (int)*(p)->_p++ : \
 479                                 __swbuf('\n', p) : \
 480                         __swbuf((int)(c), p) : \
 481                 (*(p)->_p = (c), (int)*(p)->_p++))
 482 #endif
 483
 484 #define __sfeof(p)      (((p)->_flags & __SEOF) != 0)
 485 #define __sferror(p)    (((p)->_flags & __SERR) != 0)
 486 #define __sclearerr(p)  ((void)((p)->_flags &= ~(__SERR|__SEOF)))
 487 #define __sfileno(p)    \
 488     ((p)->_file == -1 ? -1 : (int)(unsigned short)(p)->_file)
 489
 490 #if !defined(__lint__) && !defined(__cplusplus)
 491 #if !defined(_REENTRANT) && !defined(_PTHREADS)
 492 #define feof(p)         __sfeof(p)
 493 #define ferror(p)       __sferror(p)
 494 #define clearerr(p)     __sclearerr(p)
 495
 496 #define getc(fp)        __sgetc(fp)
 497 #define putc(x, fp)     __sputc(x, fp)
 498 #endif /* !_REENTRANT && !_PTHREADS */
 499
 500 #define getchar()       getc(stdin)
 501 #define putchar(x)      putc(x, stdout)
 502
 503 #endif /* !__lint__ && !__cplusplus */
 504
 505 #if (defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
 506     defined(_NETBSD_SOURCE)) && !defined(__cplusplus)
 507 #if !defined(_REENTRANT) && !defined(_PTHREADS)
 508 #define fileno(p)       __sfileno(p)
 509 #endif /* !_REENTRANT && !_PTHREADS */
 510 #endif /* !_ANSI_SOURCE && !__cplusplus*/
 511
 512 #if (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE)
 513 __BEGIN_DECLS
 514 int      vdprintf(int, const char * __restrict, __va_list)
 515                 __printflike(2, 0);
 516 int      dprintf(int, const char * __restrict, ...)
 517                 __printflike(2, 3);
 518 __END_DECLS
 519 #endif /* (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE) */
 520
 521 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
 522     defined(_REENTRANT) || defined(_NETBSD_SOURCE) && !defined(__cplusplus)
 523 #define getc_unlocked(fp)       __sgetc(fp)
 524 #define putc_unlocked(x, fp)    __sputc(x, fp)
 525
 526 #define getchar_unlocked()      getc_unlocked(stdin)
 527 #define putchar_unlocked(x)     putc_unlocked(x, stdout)
 528 #endif /* _POSIX_C_SOURCE >= 199506 || _XOPEN_SOURCE >= 500 || _REENTRANT... */
 529
 530 #if (_POSIX_C_SOURCE - 0) >= 200809L || (_XOPEN_SOURCE - 0) >= 700 || \
 531     defined(_NETBSD_SOURCE)
 532 __BEGIN_DECLS
 533 FILE *fmemopen(void * __restrict, size_t, const char * __restrict);
 534 FILE *open_memstream(char **, size_t *);
 535 ssize_t  getdelim(char ** __restrict, size_t * __restrict, int,
 536             FILE * __restrict);
 537 ssize_t  getline(char ** __restrict, size_t * __restrict, FILE * __restrict);
 538 __END_DECLS
 539 #endif
 540
 541 #if (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE)
 542 #  ifndef __LOCALE_T_DECLARED
 543 typedef struct _locale          *locale_t;
 544 #  define __LOCALE_T_DECLARED
 545 #  endif
 546 __BEGIN_DECLS
 547 int      fprintf_l(FILE * __restrict, locale_t, const char * __restrict, ...)
 548                 __printflike(3, 4);
 549 int      vfprintf_l(FILE * __restrict, locale_t, const char * __restrict,
 550                 __va_list) __printflike(3, 0);
 551 int      printf_l(locale_t, const char * __restrict, ...)
 552                 __printflike(2, 3);
 553 int      vprintf_l(locale_t, const char * __restrict, __va_list)
 554                 __printflike(2, 0);
 555 int      asprintf_l(char ** __restrict, locale_t, const char * __restrict, ...)
 556                 __printflike(3, 4);
 557 int      vasprintf_l(char ** __restrict, locale_t, const char * __restrict,
 558     __va_list)
 559                 __printflike(3, 0);
 560 int      vdprintf_l(int, locale_t, const char * __restrict, __va_list)
 561                 __printflike(3, 0);
 562 int      dprintf_l(int, locale_t, const char * __restrict, ...)
 563                 __printflike(3, 4);
 564 int      snprintf_l(char * __restrict, size_t, locale_t,
 565                     const char * __restrict, ...) __printflike(4, 5);
 566 int      vsnprintf_l(char * __restrict, size_t, locale_t,
 567                      const char * __restrict, __va_list) __printflike(4, 0);
 568 #ifndef __AUDIT__
 569 int      sprintf_l(char * __restrict, locale_t, const char * __restrict, ...)
 570                    __printflike(3, 4);
 571 int      vsprintf_l(char * __restrict, locale_t, const char * __restrict,
 572                     __va_list) __printflike(3, 0);
 573 #endif
 574
 575 int      fscanf_l(FILE * __restrict, locale_t, const char * __restrict, ...)
 576     __scanflike(3, 4);
 577 int      scanf_l(locale_t, const char * __restrict, ...)
 578     __scanflike(2, 3);
 579 int      sscanf_l(const char * __restrict, locale_t,
 580     const char * __restrict, ...) __scanflike(3, 4);
 581 int      vscanf_l(locale_t, const char * __restrict, __va_list)
 582     __scanflike(2, 0);
 583 int      vfscanf_l(FILE * __restrict, locale_t, const char * __restrict,
 584     __va_list) __scanflike(3, 0);
 585 int      vsscanf_l(const char * __restrict, locale_t, const char * __restrict,
 586     __va_list) __scanflike(3, 0);
 587 #ifdef _NETBSD_SOURCE
 588 int     snprintf_ss(char *restrict, size_t, const char * __restrict, ...)
 589     __printflike(3, 4);
 590 int     vsnprintf_ss(char *restrict, size_t, const char * __restrict, __va_list)
 591     __printflike(3, 0);
 592 #endif
 593 __END_DECLS
 594 #endif
 595
 596 #if _FORTIFY_SOURCE > 0
 597 #include <ssp/stdio.h>
 598 #endif
 599
 600 #endif /* _STDIO_H_ */