1/* DO NOT EDIT THIS FILE. 2 3 It has been auto-edited by fixincludes from: 4 5 "/tmp/toolchain-build-aarch64-linux-4.9/prefix/sysroot/usr/include/stdio.h" 6 7 This had to be done to correct non-standard usages in the 8 original, manufacturer supplied header file. */ 9 10/* $OpenBSD: stdio.h,v 1.35 2006/01/13 18:10:09 miod Exp $ */ 11/* $NetBSD: stdio.h,v 1.18 1996/04/25 18:29:21 jtc Exp $ */ 12 13/*- 14 * Copyright (c) 1990 The Regents of the University of California. 15 * All rights reserved. 16 * 17 * This code is derived from software contributed to Berkeley by 18 * Chris Torek. 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the above copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in the 27 * documentation and/or other materials provided with the distribution. 28 * 3. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)stdio.h 5.17 (Berkeley) 6/3/91 45 */ 46 47#ifndef _STDIO_H_ 48#define _STDIO_H_ 49 50#include <sys/cdefs.h> 51#include <sys/types.h> 52 53#include <stdarg.h> 54#include <stddef.h> 55 56#define __need_NULL 57#include <stddef.h> 58 59#define _FSTDIO /* Define for new stdio with functions. */ 60 61typedef off_t fpos_t; /* stdio file position type */ 62 63/* 64 * NB: to fit things in six character monocase externals, the stdio 65 * code uses the prefix `__s' for stdio objects, typically followed 66 * by a three-character attempt at a mnemonic. 67 */ 68 69/* stdio buffers */ 70struct __sbuf { 71 unsigned char *_base; 72 int _size; 73}; 74 75/* 76 * stdio state variables. 77 * 78 * The following always hold: 79 * 80 * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), 81 * _lbfsize is -_bf._size, else _lbfsize is 0 82 * if _flags&__SRD, _w is 0 83 * if _flags&__SWR, _r is 0 84 * 85 * This ensures that the getc and putc macros (or inline functions) never 86 * try to write or read from a file that is in `read' or `write' mode. 87 * (Moreover, they can, and do, automatically switch from read mode to 88 * write mode, and back, on "r+" and "w+" files.) 89 * 90 * _lbfsize is used only to make the inline line-buffered output stream 91 * code as compact as possible. 92 * 93 * _ub, _up, and _ur are used when ungetc() pushes back more characters 94 * than fit in the current _bf, or when ungetc() pushes back a character 95 * that does not match the previous one in _bf. When this happens, 96 * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff 97 * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. 98 * 99 * NOTE: if you change this structure, you also need to update the 100 * std() initializer in findfp.c. 101 */ 102typedef struct __sFILE { 103 unsigned char *_p; /* current position in (some) buffer */ 104 int _r; /* read space left for getc() */ 105 int _w; /* write space left for putc() */ 106 short _flags; /* flags, below; this FILE is free if 0 */ 107 short _file; /* fileno, if Unix descriptor, else -1 */ 108 struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ 109 int _lbfsize; /* 0 or -_bf._size, for inline putc */ 110 111 /* operations */ 112 void *_cookie; /* cookie passed to io functions */ 113 int (*_close)(void *); 114 int (*_read)(void *, char *, int); 115 fpos_t (*_seek)(void *, fpos_t, int); 116 int (*_write)(void *, const char *, int); 117 118 /* extension data, to avoid further ABI breakage */ 119 struct __sbuf _ext; 120 /* data for long sequences of ungetc() */ 121 unsigned char *_up; /* saved _p when _p is doing ungetc data */ 122 int _ur; /* saved _r when _r is counting ungetc data */ 123 124 /* tricks to meet minimum requirements even when malloc() fails */ 125 unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ 126 unsigned char _nbuf[1]; /* guarantee a getc() buffer */ 127 128 /* separate buffer for fgetln() when line crosses buffer boundary */ 129 struct __sbuf _lb; /* buffer for fgetln() */ 130 131 /* Unix stdio files get aligned to block boundaries on fseek() */ 132 int _blksize; /* stat.st_blksize (may be != _bf._size) */ 133 fpos_t _offset; /* current lseek offset */ 134} FILE; 135 136__BEGIN_DECLS 137extern FILE __sF[]; 138__END_DECLS 139 140#define __SLBF 0x0001 /* line buffered */ 141#define __SNBF 0x0002 /* unbuffered */ 142#define __SRD 0x0004 /* OK to read */ 143#define __SWR 0x0008 /* OK to write */ 144 /* RD and WR are never simultaneously asserted */ 145#define __SRW 0x0010 /* open for reading & writing */ 146#define __SEOF 0x0020 /* found EOF */ 147#define __SERR 0x0040 /* found error */ 148#define __SMBF 0x0080 /* _buf is from malloc */ 149#define __SAPP 0x0100 /* fdopen()ed in append mode */ 150#define __SSTR 0x0200 /* this is an sprintf/snprintf string */ 151#define __SOPT 0x0400 /* do fseek() optimization */ 152#define __SNPT 0x0800 /* do not do fseek() optimization */ 153#define __SOFF 0x1000 /* set iff _offset is in fact correct */ 154#define __SMOD 0x2000 /* true => fgetln modified _p text */ 155#define __SALC 0x4000 /* allocate string space dynamically */ 156#define __SIGN 0x8000 /* ignore this file in _fwalk */ 157 158/* 159 * The following three definitions are for ANSI C, which took them 160 * from System V, which brilliantly took internal interface macros and 161 * made them official arguments to setvbuf(), without renaming them. 162 * Hence, these ugly _IOxxx names are *supposed* to appear in user code. 163 * 164 * Although numbered as their counterparts above, the implementation 165 * does not rely on this. 166 */ 167#define _IOFBF 0 /* setvbuf should set fully buffered */ 168#define _IOLBF 1 /* setvbuf should set line buffered */ 169#define _IONBF 2 /* setvbuf should set unbuffered */ 170 171#define BUFSIZ 1024 /* size of buffer used by setbuf */ 172#define EOF (-1) 173 174/* 175 * FOPEN_MAX is a minimum maximum, and is the number of streams that 176 * stdio can provide without attempting to allocate further resources 177 * (which could fail). Do not use this for anything. 178 */ 179 180#define FOPEN_MAX 20 /* must be <= OPEN_MAX <sys/syslimits.h> */ 181#define FILENAME_MAX 1024 /* must be <= PATH_MAX <sys/syslimits.h> */ 182 183/* System V/ANSI C; this is the wrong way to do this, do *not* use these. */ 184#if __BSD_VISIBLE || __XPG_VISIBLE 185#define P_tmpdir "/tmp/" 186#endif 187#define L_tmpnam 1024 /* XXX must be == PATH_MAX */ 188#define TMP_MAX 308915776 189 190/* Always ensure that these are consistent with <fcntl.h> and <unistd.h>! */ 191#ifndef SEEK_SET 192#define SEEK_SET 0 /* set file offset to offset */ 193#endif 194#ifndef SEEK_CUR 195#define SEEK_CUR 1 /* set file offset to current plus offset */ 196#endif 197#ifndef SEEK_END 198#define SEEK_END 2 /* set file offset to EOF plus offset */ 199#endif 200 201#define stdin (&__sF[0]) 202#define stdout (&__sF[1]) 203#define stderr (&__sF[2]) 204 205/* 206 * Functions defined in ANSI C standard. 207 */ 208__BEGIN_DECLS 209void clearerr(FILE *); 210int fclose(FILE *); 211int feof(FILE *); 212int ferror(FILE *); 213int fflush(FILE *); 214int fgetc(FILE *); 215char *fgets(char * __restrict, int, FILE * __restrict); 216FILE *fopen(const char * __restrict , const char * __restrict); 217int fprintf(FILE * __restrict , const char * __restrict, ...) 218 __printflike(2, 3); 219int fputc(int, FILE *); 220int fputs(const char * __restrict, FILE * __restrict); 221size_t fread(void * __restrict, size_t, size_t, FILE * __restrict); 222FILE *freopen(const char * __restrict, const char * __restrict, 223 FILE * __restrict); 224int fscanf(FILE * __restrict, const char * __restrict, ...) 225 __scanflike(2, 3); 226int fseek(FILE *, long, int); 227long ftell(FILE *); 228size_t fwrite(const void * __restrict, size_t, size_t, FILE * __restrict); 229int getc(FILE *); 230int getchar(void); 231ssize_t getdelim(char ** __restrict, size_t * __restrict, int, 232 FILE * __restrict); 233ssize_t getline(char ** __restrict, size_t * __restrict, FILE * __restrict); 234 235#if __BSD_VISIBLE && !defined(__SYS_ERRLIST) 236#define __SYS_ERRLIST 237extern int sys_nerr; /* perror(3) external variables */ 238extern char *sys_errlist[]; 239#endif 240 241void perror(const char *); 242int printf(const char * __restrict, ...) 243 __printflike(1, 2); 244int putc(int, FILE *); 245int putchar(int); 246int puts(const char *); 247int remove(const char *); 248void rewind(FILE *); 249int scanf(const char * __restrict, ...) 250 __scanflike(1, 2); 251void setbuf(FILE * __restrict, char * __restrict); 252int setvbuf(FILE * __restrict, char * __restrict, int, size_t); 253int sscanf(const char * __restrict, const char * __restrict, ...) 254 __scanflike(2, 3); 255FILE *tmpfile(void); 256int ungetc(int, FILE *); 257int vfprintf(FILE * __restrict, const char * __restrict, __gnuc_va_list) 258 __printflike(2, 0); 259int vprintf(const char * __restrict, __gnuc_va_list) 260 __printflike(1, 0); 261 262#ifndef __AUDIT__ 263char* gets(char*) __warnattr("gets is very unsafe; consider using fgets"); 264int sprintf(char* __restrict, const char* __restrict, ...) 265 __printflike(2, 3); //__warnattr("sprintf is often misused; please use snprintf"); 266char* tmpnam(char*) __warnattr("tmpnam possibly used unsafely; consider using mkstemp"); 267int vsprintf(char* __restrict, const char* __restrict, __gnuc_va_list) 268 __printflike(2, 0); //__warnattr("vsprintf is often misused; please use vsnprintf"); 269#if __XPG_VISIBLE 270char* tempnam(const char*, const char*) 271 __warnattr("tempnam possibly used unsafely; consider using mkstemp"); 272#endif 273#endif 274 275extern int rename(const char*, const char*); 276extern int renameat(int, const char*, int, const char*); 277 278int fgetpos(FILE * __restrict, fpos_t * __restrict); 279int fsetpos(FILE *, const fpos_t *); 280 281int fseeko(FILE *, off_t, int); 282off_t ftello(FILE *); 283 284#if __ISO_C_VISIBLE >= 1999 || __BSD_VISIBLE 285int snprintf(char * __restrict, size_t, const char * __restrict, ...) 286 __printflike(3, 4); 287int vfscanf(FILE * __restrict, const char * __restrict, __gnuc_va_list) 288 __scanflike(2, 0); 289int vscanf(const char *, __gnuc_va_list) 290 __scanflike(1, 0); 291int vsnprintf(char * __restrict, size_t, const char * __restrict, __gnuc_va_list) 292 __printflike(3, 0); 293int vsscanf(const char * __restrict, const char * __restrict, __gnuc_va_list) 294 __scanflike(2, 0); 295#endif /* __ISO_C_VISIBLE >= 1999 || __BSD_VISIBLE */ 296 297__END_DECLS 298 299 300/* 301 * Functions defined in POSIX 1003.1. 302 */ 303#if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE 304#define L_ctermid 1024 /* size for ctermid(); PATH_MAX */ 305#define L_cuserid 9 /* size for cuserid(); UT_NAMESIZE + 1 */ 306 307__BEGIN_DECLS 308#if 0 /* MISSING FROM BIONIC */ 309char *ctermid(char *); 310char *cuserid(char *); 311#endif /* MISSING */ 312FILE *fdopen(int, const char *); 313int fileno(FILE *); 314 315#if (__POSIX_VISIBLE >= 199209) 316int pclose(FILE *); 317FILE *popen(const char *, const char *); 318#endif 319 320#if __POSIX_VISIBLE >= 199506 321void flockfile(FILE *); 322int ftrylockfile(FILE *); 323void funlockfile(FILE *); 324 325/* 326 * These are normally used through macros as defined below, but POSIX 327 * requires functions as well. 328 */ 329int getc_unlocked(FILE *); 330int getchar_unlocked(void); 331int putc_unlocked(int, FILE *); 332int putchar_unlocked(int); 333#endif /* __POSIX_VISIBLE >= 199506 */ 334 335__END_DECLS 336 337#endif /* __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE */ 338 339/* 340 * Routines that are purely local. 341 */ 342#if __BSD_VISIBLE 343__BEGIN_DECLS 344int asprintf(char ** __restrict, const char * __restrict, ...) 345 __printflike(2, 3); 346char *fgetln(FILE * __restrict, size_t * __restrict); 347int fpurge(FILE *); 348int getw(FILE *); 349int putw(int, FILE *); 350void setbuffer(FILE *, char *, int); 351int setlinebuf(FILE *); 352int vasprintf(char ** __restrict, const char * __restrict, 353 __gnuc_va_list) 354 __printflike(2, 0); 355__END_DECLS 356 357/* 358 * Stdio function-access interface. 359 */ 360__BEGIN_DECLS 361FILE *funopen(const void *, 362 int (*)(void *, char *, int), 363 int (*)(void *, const char *, int), 364 fpos_t (*)(void *, fpos_t, int), 365 int (*)(void *)); 366__END_DECLS 367#define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0) 368#define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0) 369#endif /* __BSD_VISIBLE */ 370 371#ifdef _GNU_SOURCE 372/* 373 * glibc defines dprintf(int, const char*, ...), which is poorly named 374 * and likely to conflict with locally defined debugging printfs 375 * fdprintf is a better name, and some programs that use fdprintf use a 376 * #define fdprintf dprintf for compatibility 377 */ 378__BEGIN_DECLS 379int fdprintf(int, const char*, ...) 380 __printflike(2, 3); 381int vfdprintf(int, const char*, __gnuc_va_list) 382 __printflike(2, 0); 383__END_DECLS 384#endif /* _GNU_SOURCE */ 385 386#if defined(__BIONIC_FORTIFY) 387 388__BEGIN_DECLS 389 390__BIONIC_FORTIFY_INLINE 391__printflike(3, 0) 392int vsnprintf(char *dest, size_t size, const char *format, __va_list ap) 393{ 394 return __builtin___vsnprintf_chk(dest, size, 0, __bos(dest), format, ap); 395} 396 397__BIONIC_FORTIFY_INLINE 398__printflike(2, 0) 399int vsprintf(char *dest, const char *format, __va_list ap) 400{ 401 return __builtin___vsprintf_chk(dest, 0, __bos(dest), format, ap); 402} 403 404#if defined(__clang__) 405 #if !defined(snprintf) 406 #define __wrap_snprintf(dest, size, ...) __builtin___snprintf_chk(dest, size, 0, __bos(dest), __VA_ARGS__) 407 #define snprintf(...) __wrap_snprintf(__VA_ARGS__) 408 #endif 409#else 410__BIONIC_FORTIFY_INLINE 411__printflike(3, 4) 412int snprintf(char *dest, size_t size, const char *format, ...) 413{ 414 return __builtin___snprintf_chk(dest, size, 0, 415 __bos(dest), format, __builtin_va_arg_pack()); 416} 417#endif 418 419#if defined(__clang__) 420 #if !defined(sprintf) 421 #define __wrap_sprintf(dest, ...) __builtin___sprintf_chk(dest, 0, __bos(dest), __VA_ARGS__) 422 #define sprintf(...) __wrap_sprintf(__VA_ARGS__) 423 #endif 424#else 425__BIONIC_FORTIFY_INLINE 426__printflike(2, 3) 427int sprintf(char *dest, const char *format, ...) 428{ 429 return __builtin___sprintf_chk(dest, 0, 430 __bos(dest), format, __builtin_va_arg_pack()); 431} 432#endif 433 434extern char* __fgets_chk(char*, int, FILE*, size_t); 435extern char* __fgets_real(char*, int, FILE*) __asm__(__USER_LABEL_PREFIX__ "fgets"); 436__errordecl(__fgets_too_big_error, "fgets called with size bigger than buffer"); 437__errordecl(__fgets_too_small_error, "fgets called with size less than zero"); 438 439#if !defined(__clang__) 440 441__BIONIC_FORTIFY_INLINE 442char *fgets(char* dest, int size, FILE* stream) { 443 size_t bos = __bos(dest); 444 445 // Compiler can prove, at compile time, that the passed in size 446 // is always negative. Force a compiler error. 447 if (__builtin_constant_p(size) && (size < 0)) { 448 __fgets_too_small_error(); 449 } 450 451 // Compiler doesn't know destination size. Don't call __fgets_chk 452 if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 453 return __fgets_real(dest, size, stream); 454 } 455 456 // Compiler can prove, at compile time, that the passed in size 457 // is always <= the actual object size. Don't call __fgets_chk 458 if (__builtin_constant_p(size) && (size <= (int) bos)) { 459 return __fgets_real(dest, size, stream); 460 } 461 462 // Compiler can prove, at compile time, that the passed in size 463 // is always > the actual object size. Force a compiler error. 464 if (__builtin_constant_p(size) && (size > (int) bos)) { 465 __fgets_too_big_error(); 466 } 467 468 return __fgets_chk(dest, size, stream, bos); 469} 470 471#endif /* !defined(__clang__) */ 472 473__END_DECLS 474 475#endif /* defined(__BIONIC_FORTIFY) */ 476 477#endif /* _STDIO_H_ */ 478