include/stdio.h

   1 /*
   2  * Copyright (c) 2000, 2005, 2007, 2009, 2010 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*-
  24  * Copyright (c) 1990, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * This code is derived from software contributed to Berkeley by
  28  * Chris Torek.
  29  *
  30  * Redistribution and use in source and binary forms, with or without
  31  * modification, are permitted provided that the following conditions
  32  * are met:
  33  * 1. Redistributions of source code must retain the above copyright
  34  *    notice, this list of conditions and the following disclaimer.
  35  * 2. Redistributions in binary form must reproduce the above copyright
  36  *    notice, this list of conditions and the following disclaimer in the
  37  *    documentation and/or other materials provided with the distribution.
  38  * 3. All advertising materials mentioning features or use of this software
  39  *    must display the following acknowledgement:
  40  *      This product includes software developed by the University of
  41  *      California, Berkeley and its contributors.
  42  * 4. Neither the name of the University nor the names of its contributors
  43  *    may be used to endorse or promote products derived from this software
  44  *    without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  56  * SUCH DAMAGE.
  57  *
  58  *      @(#)stdio.h     8.5 (Berkeley) 4/29/95
  59  */
  60
  61 #ifndef _STDIO_H_
  62 #define _STDIO_H_
  63
  64 #include <_stdio.h>
  65
  66 #ifndef UNIFDEF_DRIVERKIT
  67 __BEGIN_DECLS
  68 extern FILE *__stdinp;
  69 extern FILE *__stdoutp;
  70 extern FILE *__stderrp;
  71 __END_DECLS
  72
  73 #define __SLBF  0x0001          /* line buffered */
  74 #define __SNBF  0x0002          /* unbuffered */
  75 #define __SRD   0x0004          /* OK to read */
  76 #define __SWR   0x0008          /* OK to write */
  77         /* RD and WR are never simultaneously asserted */
  78 #define __SRW   0x0010          /* open for reading & writing */
  79 #define __SEOF  0x0020          /* found EOF */
  80 #define __SERR  0x0040          /* found error */
  81 #define __SMBF  0x0080          /* _buf is from malloc */
  82 #define __SAPP  0x0100          /* fdopen()ed in append mode */
  83 #define __SSTR  0x0200          /* this is an sprintf/snprintf string */
  84 #define __SOPT  0x0400          /* do fseek() optimisation */
  85 #define __SNPT  0x0800          /* do not do fseek() optimisation */
  86 #define __SOFF  0x1000          /* set iff _offset is in fact correct */
  87 #define __SMOD  0x2000          /* true => fgetln modified _p text */
  88 #define __SALC  0x4000          /* allocate string space dynamically */
  89 #define __SIGN  0x8000          /* ignore this file in _fwalk */
  90
  91 /*
  92  * The following three definitions are for ANSI C, which took them
  93  * from System V, which brilliantly took internal interface macros and
  94  * made them official arguments to setvbuf(), without renaming them.
  95  * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
  96  *
  97  * Although numbered as their counterparts above, the implementation
  98  * does not rely on this.
  99  */
 100 #define _IOFBF  0               /* setvbuf should set fully buffered */
 101 #define _IOLBF  1               /* setvbuf should set line buffered */
 102 #define _IONBF  2               /* setvbuf should set unbuffered */
 103
 104 #define BUFSIZ  1024            /* size of buffer used by setbuf */
 105 #define EOF     (-1)
 106
 107                                 /* must be == _POSIX_STREAM_MAX <limits.h> */
 108 #define FOPEN_MAX       20      /* must be <= OPEN_MAX <sys/syslimits.h> */
 109 #define FILENAME_MAX    1024    /* must be <= PATH_MAX <sys/syslimits.h> */
 110
 111 /* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
 112 #ifndef _ANSI_SOURCE
 113 #define P_tmpdir        "/var/tmp/"
 114 #endif
 115 #define L_tmpnam        1024    /* XXX must be == PATH_MAX */
 116 #define TMP_MAX         308915776
 117
 118 #ifndef SEEK_SET
 119 #define SEEK_SET        0       /* set file offset to offset */
 120 #endif
 121 #ifndef SEEK_CUR
 122 #define SEEK_CUR        1       /* set file offset to current plus offset */
 123 #endif
 124 #ifndef SEEK_END
 125 #define SEEK_END        2       /* set file offset to EOF plus offset */
 126 #endif
 127
 128 #define stdin   __stdinp
 129 #define stdout  __stdoutp
 130 #define stderr  __stderrp
 131
 132 #ifdef _DARWIN_UNLIMITED_STREAMS
 133 #if defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_3_2
 134 #error "_DARWIN_UNLIMITED_STREAMS specified, but -miphoneos-version-min version does not support it."
 135 #elif defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_6
 136 #error "_DARWIN_UNLIMITED_STREAMS specified, but -mmacosx-version-min version does not support it."
 137 #endif
 138 #endif
 139
 140 /* ANSI-C */
 141
 142 __BEGIN_DECLS
 143 void     clearerr(FILE *);
 144 int      fclose(FILE *);
 145 int      feof(FILE *);
 146 int      ferror(FILE *);
 147 int      fflush(FILE *);
 148 int      fgetc(FILE *);
 149 int      fgetpos(FILE * __restrict, fpos_t *);
 150 char    *fgets(char * __restrict, int, FILE *);
 151 #if defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE)
 152 FILE    *fopen(const char * __restrict __filename, const char * __restrict __mode) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_3_2, __DARWIN_EXTSN(fopen));
 153 #else /* !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */
 154 //Begin-Libc
 155 #ifndef LIBC_ALIAS_FOPEN
 156 //End-Libc
 157 FILE    *fopen(const char * __restrict __filename, const char * __restrict __mode) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_2_0, __DARWIN_ALIAS(fopen));
 158 //Begin-Libc
 159 #else /* LIBC_ALIAS_FOPEN */
 160 FILE    *fopen(const char * __restrict __filename, const char * __restrict __mode) LIBC_ALIAS(fopen);
 161 #endif /* !LIBC_ALIAS_FOPEN */
 162 //End-Libc
 163 #endif /* (DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */
 164 int      fprintf(FILE * __restrict, const char * __restrict, ...) __printflike(2, 3);
 165 int      fputc(int, FILE *);
 166 //Begin-Libc
 167 #ifndef LIBC_ALIAS_FPUTS
 168 //End-Libc
 169 int      fputs(const char * __restrict, FILE * __restrict) __DARWIN_ALIAS(fputs);
 170 //Begin-Libc
 171 #else /* LIBC_ALIAS_FPUTS */
 172 int      fputs(const char * __restrict, FILE * __restrict) LIBC_ALIAS(fputs);
 173 #endif /* !LIBC_ALIAS_FPUTS */
 174 //End-Libc
 175 size_t   fread(void * __restrict __ptr, size_t __size, size_t __nitems, FILE * __restrict __stream);
 176 //Begin-Libc
 177 #ifndef LIBC_ALIAS_FREOPEN
 178 //End-Libc
 179 FILE    *freopen(const char * __restrict, const char * __restrict,
 180                  FILE * __restrict) __DARWIN_ALIAS(freopen);
 181 //Begin-Libc
 182 #else /* LIBC_ALIAS_FREOPEN */
 183 FILE    *freopen(const char * __restrict, const char * __restrict,
 184                  FILE * __restrict) LIBC_ALIAS(freopen);
 185 #endif /* !LIBC_ALIAS_FREOPEN */
 186 //End-Libc
 187 int      fscanf(FILE * __restrict, const char * __restrict, ...) __scanflike(2, 3);
 188 int      fseek(FILE *, long, int);
 189 int      fsetpos(FILE *, const fpos_t *);
 190 long     ftell(FILE *);
 191 //Begin-Libc
 192 #ifndef LIBC_ALIAS_FWRITE
 193 //End-Libc
 194 size_t   fwrite(const void * __restrict __ptr, size_t __size, size_t __nitems, FILE * __restrict __stream) __DARWIN_ALIAS(fwrite);
 195 //Begin-Libc
 196 #else /* LIBC_ALIAS_FWRITE */
 197 size_t   fwrite(const void * __restrict __ptr, size_t __size, size_t __nitems, FILE * __restrict __stream) LIBC_ALIAS(fwrite);
 198 #endif /* !LIBC_ALIAS_FWRITE */
 199 //End-Libc
 200 int      getc(FILE *);
 201 int      getchar(void);
 202 char    *gets(char *);
 203 void     perror(const char *) __cold;
 204 int      printf(const char * __restrict, ...) __printflike(1, 2);
 205 int      putc(int, FILE *);
 206 int      putchar(int);
 207 int      puts(const char *);
 208 int      remove(const char *);
 209 int      rename (const char *__old, const char *__new);
 210 void     rewind(FILE *);
 211 int      scanf(const char * __restrict, ...) __scanflike(1, 2);
 212 void     setbuf(FILE * __restrict, char * __restrict);
 213 int      setvbuf(FILE * __restrict, char * __restrict, int, size_t);
 214 int      sprintf(char * __restrict, const char * __restrict, ...) __printflike(2, 3) __swift_unavailable("Use snprintf instead.");
 215 int      sscanf(const char * __restrict, const char * __restrict, ...) __scanflike(2, 3);
 216 FILE    *tmpfile(void);
 217
 218 __swift_unavailable("Use mkstemp(3) instead.")
 219 #if !defined(_POSIX_C_SOURCE)
 220 __deprecated_msg("This function is provided for compatibility reasons only.  Due to security concerns inherent in the design of tmpnam(3), it is highly recommended that you use mkstemp(3) instead.")
 221 #endif
 222 char    *tmpnam(char *);
 223 int      ungetc(int, FILE *);
 224 int      vfprintf(FILE * __restrict, const char * __restrict, va_list) __printflike(2, 0);
 225 int      vprintf(const char * __restrict, va_list) __printflike(1, 0);
 226 int      vsprintf(char * __restrict, const char * __restrict, va_list) __printflike(2, 0) __swift_unavailable("Use vsnprintf instead.");
 227 __END_DECLS
 228
 229
 230
 231 /* Additional functionality provided by:
 232  * POSIX.1-1988
 233  */
 234
 235 #if __DARWIN_C_LEVEL >= 198808L
 236 #define L_ctermid       1024    /* size for ctermid(); PATH_MAX */
 237
 238 __BEGIN_DECLS
 239 #include <_ctermid.h>
 240
 241 #if defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE)
 242 FILE    *fdopen(int, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_3_2, __DARWIN_EXTSN(fdopen));
 243 #else /* !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */
 244 //Begin-Libc
 245 #ifndef LIBC_ALIAS_FDOPEN
 246 //End-Libc
 247 FILE    *fdopen(int, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_2_0, __DARWIN_ALIAS(fdopen));
 248 //Begin-Libc
 249 #else /* LIBC_ALIAS_FDOPEN */
 250 FILE    *fdopen(int, const char *) LIBC_ALIAS(fdopen);
 251 #endif /* !LIBC_ALIAS_FDOPEN */
 252 //End-Libc
 253 #endif /* (DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */
 254 int      fileno(FILE *);
 255 __END_DECLS
 256 #endif /* __DARWIN_C_LEVEL >= 198808L */
 257
 258
 259 /* Additional functionality provided by:
 260  * POSIX.2-1992 C Language Binding Option
 261  */
 262 #if TARGET_OS_EMBEDDED
 263 #define __swift_unavailable_on(osx_msg, ios_msg) __swift_unavailable(ios_msg)
 264 #else
 265 #define __swift_unavailable_on(osx_msg, ios_msg) __swift_unavailable(osx_msg)
 266 #endif
 267
 268 #if __DARWIN_C_LEVEL >= 199209L
 269 __BEGIN_DECLS
 270 int      pclose(FILE *) __swift_unavailable_on("Use posix_spawn APIs or NSTask instead.", "Process spawning is unavailable.");
 271 #if defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE)
 272 FILE    *popen(const char *, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_3_2, __DARWIN_EXTSN(popen)) __swift_unavailable_on("Use posix_spawn APIs or NSTask instead.", "Process spawning is unavailable.");
 273 #else /* !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */
 274 //Begin-Libc
 275 #ifndef LIBC_ALIAS_POPEN
 276 //End-Libc
 277 FILE    *popen(const char *, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_2_0, __DARWIN_ALIAS(popen)) __swift_unavailable_on("Use posix_spawn APIs or NSTask instead.", "Process spawning is unavailable.");
 278 //Begin-Libc
 279 #else /* LIBC_ALIAS_POPEN */
 280 FILE    *popen(const char *, const char *) LIBC_ALIAS(popen);
 281 #endif /* !LIBC_ALIAS_POPEN */
 282 //End-Libc
 283 #endif /* (DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */
 284 __END_DECLS
 285 #endif /* __DARWIN_C_LEVEL >= 199209L */
 286
 287 #undef __swift_unavailable_on
 288
 289 /* Additional functionality provided by:
 290  * POSIX.1c-1995,
 291  * POSIX.1i-1995,
 292  * and the omnibus ISO/IEC 9945-1: 1996
 293  */
 294
 295 #if __DARWIN_C_LEVEL >= 199506L
 296
 297 /* Functions internal to the implementation. */
 298 __BEGIN_DECLS
 299 int     __srget(FILE *);
 300 int     __svfscanf(FILE *, const char *, va_list) __scanflike(2, 0);
 301 int     __swbuf(int, FILE *);
 302 __END_DECLS
 303
 304 /*
 305  * The __sfoo macros are here so that we can
 306  * define function versions in the C library.
 307  */
 308 #define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
 309 #if defined(__GNUC__) && defined(__STDC__)
 310 __header_always_inline int __sputc(int _c, FILE *_p) {
 311         if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
 312                 return (*_p->_p++ = _c);
 313         else
 314                 return (__swbuf(_c, _p));
 315 }
 316 #else
 317 /*
 318  * This has been tuned to generate reasonable code on the vax using pcc.
 319  */
 320 #define __sputc(c, p) \
 321         (--(p)->_w < 0 ? \
 322                 (p)->_w >= (p)->_lbfsize ? \
 323                         (*(p)->_p = (c)), *(p)->_p != '\n' ? \
 324                                 (int)*(p)->_p++ : \
 325                                 __swbuf('\n', p) : \
 326                         __swbuf((int)(c), p) : \
 327                 (*(p)->_p = (c), (int)*(p)->_p++))
 328 #endif
 329
 330 #define __sfeof(p)      (((p)->_flags & __SEOF) != 0)
 331 #define __sferror(p)    (((p)->_flags & __SERR) != 0)
 332 #define __sclearerr(p)  ((void)((p)->_flags &= ~(__SERR|__SEOF)))
 333 #define __sfileno(p)    ((p)->_file)
 334
 335 __BEGIN_DECLS
 336 void     flockfile(FILE *);
 337 int      ftrylockfile(FILE *);
 338 void     funlockfile(FILE *);
 339 int      getc_unlocked(FILE *);
 340 int      getchar_unlocked(void);
 341 int      putc_unlocked(int, FILE *);
 342 int      putchar_unlocked(int);
 343
 344 /* Removed in Issue 6 */
 345 #if !defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE < 200112L
 346 int      getw(FILE *);
 347 int      putw(int, FILE *);
 348 #endif
 349
 350 __swift_unavailable("Use mkstemp(3) instead.")
 351 #if !defined(_POSIX_C_SOURCE)
 352 __deprecated_msg("This function is provided for compatibility reasons only.  Due to security concerns inherent in the design of tempnam(3), it is highly recommended that you use mkstemp(3) instead.")
 353 #endif
 354 //Begin-Libc
 355 #ifndef LIBC_ALIAS_TEMPNAM
 356 //End-Libc
 357 char    *tempnam(const char *__dir, const char *__prefix) __DARWIN_ALIAS(tempnam);
 358 //Begin-Libc
 359 #else /* LIBC_ALIAS_TEMPNAM */
 360 char    *tempnam(const char *__dir, const char *__prefix) LIBC_ALIAS(tempnam);
 361 #endif /* !LIBC_ALIAS_TEMPNAM */
 362 //End-Libc
 363 __END_DECLS
 364
 365 #ifndef lint
 366 #define getc_unlocked(fp)       __sgetc(fp)
 367 #define putc_unlocked(x, fp)    __sputc(x, fp)
 368 #endif /* lint */
 369
 370 #define getchar_unlocked()      getc_unlocked(stdin)
 371 #define putchar_unlocked(x)     putc_unlocked(x, stdout)
 372 #endif /* __DARWIN_C_LEVEL >= 199506L */
 373
 374
 375
 376 /* Additional functionality provided by:
 377  * POSIX.1-2001
 378  * ISO C99
 379  */
 380
 381 #if __DARWIN_C_LEVEL >= 200112L
 382 #include <sys/_types/_off_t.h>
 383
 384 __BEGIN_DECLS
 385 int      fseeko(FILE * __stream, off_t __offset, int __whence);
 386 off_t    ftello(FILE * __stream);
 387 __END_DECLS
 388 #endif /* __DARWIN_C_LEVEL >= 200112L */
 389
 390 #if __DARWIN_C_LEVEL >= 200112L || defined(_C99_SOURCE) || defined(__cplusplus)
 391 __BEGIN_DECLS
 392 int      snprintf(char * __restrict __str, size_t __size, const char * __restrict __format, ...) __printflike(3, 4);
 393 int      vfscanf(FILE * __restrict __stream, const char * __restrict __format, va_list) __scanflike(2, 0);
 394 int      vscanf(const char * __restrict __format, va_list) __scanflike(1, 0);
 395 int      vsnprintf(char * __restrict __str, size_t __size, const char * __restrict __format, va_list) __printflike(3, 0);
 396 int      vsscanf(const char * __restrict __str, const char * __restrict __format, va_list) __scanflike(2, 0);
 397 __END_DECLS
 398 #endif /* __DARWIN_C_LEVEL >= 200112L || defined(_C99_SOURCE) || defined(__cplusplus) */
 399
 400
 401
 402 /* Additional functionality provided by:
 403  * POSIX.1-2008
 404  */
 405
 406 #if __DARWIN_C_LEVEL >= 200809L
 407 #include <sys/_types/_ssize_t.h>
 408
 409 __BEGIN_DECLS
 410 int     dprintf(int, const char * __restrict, ...) __printflike(2, 3) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
 411 int     vdprintf(int, const char * __restrict, va_list) __printflike(2, 0) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
 412 ssize_t getdelim(char ** __restrict __linep, size_t * __restrict __linecapp, int __delimiter, FILE * __restrict __stream) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
 413 ssize_t getline(char ** __restrict __linep, size_t * __restrict __linecapp, FILE * __restrict __stream) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
 414 FILE *fmemopen(void * __restrict __buf, size_t __size, const char * __restrict __mode) __API_AVAILABLE(macos(10.13), ios(11.0), tvos(11.0), watchos(4.0));
 415 FILE *open_memstream(char **__bufp, size_t *__sizep) __API_AVAILABLE(macos(10.13), ios(11.0), tvos(11.0), watchos(4.0));
 416 __END_DECLS
 417 #endif /* __DARWIN_C_LEVEL >= 200809L */
 418
 419
 420
 421 /* Darwin extensions */
 422
 423 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
 424 __BEGIN_DECLS
 425 extern __const int sys_nerr;            /* perror(3) external variables */
 426 extern __const char *__const sys_errlist[];
 427
 428 int      asprintf(char ** __restrict, const char * __restrict, ...) __printflike(2, 3);
 429 char    *ctermid_r(char *);
 430 char    *fgetln(FILE *, size_t *);
 431 __const char *fmtcheck(const char *, const char *);
 432 int      fpurge(FILE *);
 433 void     setbuffer(FILE *, char *, int);
 434 int      setlinebuf(FILE *);
 435 int      vasprintf(char ** __restrict, const char * __restrict, va_list) __printflike(2, 0);
 436 FILE    *zopen(const char *, const char *, int);
 437
 438
 439 /*
 440  * Stdio function-access interface.
 441  */
 442 FILE    *funopen(const void *,
 443                  int (* _Nullable)(void *, char *, int),
 444                  int (* _Nullable)(void *, const char *, int),
 445                  fpos_t (* _Nullable)(void *, fpos_t, int),
 446                  int (* _Nullable)(void *));
 447 __END_DECLS
 448 #define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
 449 #define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
 450
 451 #define feof_unlocked(p)        __sfeof(p)
 452 #define ferror_unlocked(p)      __sferror(p)
 453 #define clearerr_unlocked(p)    __sclearerr(p)
 454 #define fileno_unlocked(p)      __sfileno(p)
 455
 456 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
 457
 458 #else /* UNIFDEF_DRIVERKIT */
 459 #define EOF     (-1)
 460
 461 __BEGIN_DECLS
 462 int      sscanf(const char * __restrict, const char * __restrict, ...) __scanflike(2, 3);
 463 #if __DARWIN_C_LEVEL >= 200112L || defined(_C99_SOURCE) || defined(__cplusplus)
 464 int      snprintf(char * __restrict __str, size_t __size, const char * __restrict __format, ...) __printflike(3, 4);
 465 int      vsnprintf(char * __restrict __str, size_t __size, const char * __restrict __format, va_list) __printflike(3, 0);
 466 int      vsscanf(const char * __restrict __str, const char * __restrict __format, va_list) __scanflike(2, 0);
 467 #endif /* __DARWIN_C_LEVEL >= 200112L || defined(_C99_SOURCE) || defined(__cplusplus) */
 468 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
 469 int      asprintf(char ** __restrict, const char * __restrict, ...) __printflike(2, 3);
 470 int      vasprintf(char ** __restrict, const char * __restrict, va_list) __printflike(2, 0);
 471 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
 472 __END_DECLS
 473 #endif /* UNIFDEF_DRIVERKIT */
 474
 475 #ifdef _USE_EXTENDED_LOCALES_
 476 #include <xlocale/_stdio.h>
 477 #endif /* _USE_EXTENDED_LOCALES_ */
 478
 479 #if defined (__GNUC__) && _FORTIFY_SOURCE > 0 && !defined (__cplusplus)
 480 /* Security checking functions.  */
 481 #include <secure/_stdio.h>
 482 #endif
 483
 484 #endif /* _STDIO_H_ */