111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* $OpenBSD: stdio.h,v 1.35 2006/01/13 18:10:09 miod Exp $ */ 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* $NetBSD: stdio.h,v 1.18 1996/04/25 18:29:21 jtc Exp $ */ 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/*- 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Copyright (c) 1990 The Regents of the University of California. 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * All rights reserved. 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * This code is derived from software contributed to Berkeley by 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Chris Torek. 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Redistribution and use in source and binary forms, with or without 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * modification, are permitted provided that the following conditions 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * are met: 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 1. Redistributions of source code must retain the above copyright 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer. 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 2. Redistributions in binary form must reproduce the above copyright 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer in the 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * documentation and/or other materials provided with the distribution. 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 3. Neither the name of the University nor the names of its contributors 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * may be used to endorse or promote products derived from this software 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * without specific prior written permission. 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * SUCH DAMAGE. 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * @(#)stdio.h 5.17 (Berkeley) 6/3/91 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef _STDIO_H_ 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _STDIO_H_ 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * This file must contain a reference to __gnuc_va_list so that GCC's 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * fixincludes knows that that's what's being used for va_list, and so 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * to leave our <stdio.h> alone. (fixincludes gets in the way of pointing 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * one toolchain at various different sets of platform headers.) 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * If you alter this comment, be sure to keep "__gnuc_va_list" in it! 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/cdefs.h> 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/types.h> 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <stdarg.h> 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <stddef.h> 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __need_NULL 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <stddef.h> 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _FSTDIO /* Define for new stdio with functions. */ 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttypedef off_t fpos_t; /* stdio file position type */ 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * NB: to fit things in six character monocase externals, the stdio 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * code uses the prefix `__s' for stdio objects, typically followed 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * by a three-character attempt at a mnemonic. 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* stdio buffers */ 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if defined(__LP64__) 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct __sbuf { 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert unsigned char* _base; 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t _size; 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct __sbuf { 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert unsigned char *_base; 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int _size; 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 8211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * stdio state variables. 8311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 8411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * The following always hold: 8511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 8611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), 8711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * _lbfsize is -_bf._size, else _lbfsize is 0 8811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * if _flags&__SRD, _w is 0 8911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * if _flags&__SWR, _r is 0 9011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 9111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * This ensures that the getc and putc macros (or inline functions) never 9211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * try to write or read from a file that is in `read' or `write' mode. 9311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * (Moreover, they can, and do, automatically switch from read mode to 9411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * write mode, and back, on "r+" and "w+" files.) 9511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 9611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * _lbfsize is used only to make the inline line-buffered output stream 9711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * code as compact as possible. 9811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 9911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * _ub, _up, and _ur are used when ungetc() pushes back more characters 10011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * than fit in the current _bf, or when ungetc() pushes back a character 10111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * that does not match the previous one in _bf. When this happens, 10211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff 10311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. 10411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 10511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * NOTE: if you change this structure, you also need to update the 10611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * std() initializer in findfp.c. 10711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 10811cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttypedef struct __sFILE { 10911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert unsigned char *_p; /* current position in (some) buffer */ 11011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int _r; /* read space left for getc() */ 11111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int _w; /* write space left for putc() */ 11211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if defined(__LP64__) 11311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int _flags; /* flags, below; this FILE is free if 0 */ 11411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int _file; /* fileno, if Unix descriptor, else -1 */ 11511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 11611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert short _flags; /* flags, below; this FILE is free if 0 */ 11711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert short _file; /* fileno, if Unix descriptor, else -1 */ 11811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 11911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ 12011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int _lbfsize; /* 0 or -_bf._size, for inline putc */ 12111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* operations */ 12311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert void *_cookie; /* cookie passed to io functions */ 12411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int (*_close)(void *); 12511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int (*_read)(void *, char *, int); 12611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fpos_t (*_seek)(void *, fpos_t, int); 12711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int (*_write)(void *, const char *, int); 12811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* extension data, to avoid further ABI breakage */ 13011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct __sbuf _ext; 13111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* data for long sequences of ungetc() */ 13211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert unsigned char *_up; /* saved _p when _p is doing ungetc data */ 13311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int _ur; /* saved _r when _r is counting ungetc data */ 13411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* tricks to meet minimum requirements even when malloc() fails */ 13611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ 13711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert unsigned char _nbuf[1]; /* guarantee a getc() buffer */ 13811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* separate buffer for fgetln() when line crosses buffer boundary */ 14011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct __sbuf _lb; /* buffer for fgetln() */ 14111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 14211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* Unix stdio files get aligned to block boundaries on fseek() */ 14311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int _blksize; /* stat.st_blksize (may be != _bf._size) */ 14411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fpos_t _offset; /* current lseek offset */ 14511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} FILE; 14611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 14711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 14811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern FILE __sF[]; 14911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 15011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SLBF 0x0001 /* line buffered */ 15211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SNBF 0x0002 /* unbuffered */ 15311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SRD 0x0004 /* OK to read */ 15411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SWR 0x0008 /* OK to write */ 15511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* RD and WR are never simultaneously asserted */ 15611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SRW 0x0010 /* open for reading & writing */ 15711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SEOF 0x0020 /* found EOF */ 15811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SERR 0x0040 /* found error */ 15911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SMBF 0x0080 /* _buf is from malloc */ 16011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SAPP 0x0100 /* fdopen()ed in append mode */ 16111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SSTR 0x0200 /* this is an sprintf/snprintf string */ 16211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SOPT 0x0400 /* do fseek() optimization */ 16311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SNPT 0x0800 /* do not do fseek() optimization */ 16411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SOFF 0x1000 /* set iff _offset is in fact correct */ 16511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SMOD 0x2000 /* true => fgetln modified _p text */ 16611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SALC 0x4000 /* allocate string space dynamically */ 16711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define __SIGN 0x8000 /* ignore this file in _fwalk */ 16811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 17011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * The following three definitions are for ANSI C, which took them 17111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * from System V, which brilliantly took internal interface macros and 17211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * made them official arguments to setvbuf(), without renaming them. 17311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Hence, these ugly _IOxxx names are *supposed* to appear in user code. 17411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 17511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Although numbered as their counterparts above, the implementation 17611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * does not rely on this. 17711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 17811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _IOFBF 0 /* setvbuf should set fully buffered */ 17911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _IOLBF 1 /* setvbuf should set line buffered */ 18011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _IONBF 2 /* setvbuf should set unbuffered */ 18111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define BUFSIZ 1024 /* size of buffer used by setbuf */ 18311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EOF (-1) 18411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 18611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * FOPEN_MAX is a minimum maximum, and is the number of streams that 18711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * stdio can provide without attempting to allocate further resources 18811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * (which could fail). Do not use this for anything. 18911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 19011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define FOPEN_MAX 20 /* must be <= OPEN_MAX <sys/syslimits.h> */ 19211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define FILENAME_MAX 1024 /* must be <= PATH_MAX <sys/syslimits.h> */ 19311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* System V/ANSI C; this is the wrong way to do this, do *not* use these. */ 19511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __BSD_VISIBLE || __XPG_VISIBLE 19611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define P_tmpdir "/tmp/" 19711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 19811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define L_tmpnam 1024 /* XXX must be == PATH_MAX */ 19911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define TMP_MAX 308915776 20011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 20111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Always ensure that these are consistent with <fcntl.h> and <unistd.h>! */ 20211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef SEEK_SET 20311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SEEK_SET 0 /* set file offset to offset */ 20411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 20511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef SEEK_CUR 20611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SEEK_CUR 1 /* set file offset to current plus offset */ 20711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 20811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef SEEK_END 20911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SEEK_END 2 /* set file offset to EOF plus offset */ 21011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 21111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define stdin (&__sF[0]) 21311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define stdout (&__sF[1]) 21411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define stderr (&__sF[2]) 21511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 21711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Functions defined in ANSI C standard. 21811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 21911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 22011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid clearerr(FILE *); 22111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fclose(FILE *); 22211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint feof(FILE *); 22311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint ferror(FILE *); 22411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fflush(FILE *); 22511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fgetc(FILE *); 22611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar *fgets(char * __restrict, int, FILE * __restrict); 22711cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertFILE *fopen(const char * __restrict , const char * __restrict); 22811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fprintf(FILE * __restrict , const char * __restrict, ...) 22911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(2, 3); 23011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fputc(int, FILE *); 23111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fputs(const char * __restrict, FILE * __restrict); 23211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t fread(void * __restrict, size_t, size_t, FILE * __restrict); 23311cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertFILE *freopen(const char * __restrict, const char * __restrict, 23411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert FILE * __restrict); 23511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fscanf(FILE * __restrict, const char * __restrict, ...) 23611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __scanflike(2, 3); 23711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fseek(FILE *, long, int); 23811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertlong ftell(FILE *); 23911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsize_t fwrite(const void * __restrict, size_t, size_t, FILE * __restrict); 24011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint getc(FILE *); 24111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint getchar(void); 24211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertssize_t getdelim(char ** __restrict, size_t * __restrict, int, 24311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert FILE * __restrict); 24411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertssize_t getline(char ** __restrict, size_t * __restrict, FILE * __restrict); 24511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 24611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid perror(const char *); 24711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint printf(const char * __restrict, ...) 24811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(1, 2); 24911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint putc(int, FILE *); 25011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint putchar(int); 25111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint puts(const char *); 25211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint remove(const char *); 25311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid rewind(FILE *); 25411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint scanf(const char * __restrict, ...) 25511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __scanflike(1, 2); 25611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid setbuf(FILE * __restrict, char * __restrict); 25711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint setvbuf(FILE * __restrict, char * __restrict, int, size_t); 25811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint sscanf(const char * __restrict, const char * __restrict, ...) 25911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __scanflike(2, 3); 26011cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertFILE *tmpfile(void); 26111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint ungetc(int, FILE *); 26211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vfprintf(FILE * __restrict, const char * __restrict, __va_list) 26311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(2, 0); 26411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vprintf(const char * __restrict, __va_list) 26511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(1, 0); 26611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 26711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint dprintf(int, const char * __restrict, ...) __printflike(2, 3); 26811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vdprintf(int, const char * __restrict, __va_list) __printflike(2, 0); 26911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 27011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef __AUDIT__ 27111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L 27211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* gets(char*) __warnattr("gets is very unsafe; consider using fgets"); 27311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 27411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint sprintf(char* __restrict, const char* __restrict, ...) 27511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(2, 3); //__warnattr("sprintf is often misused; please use snprintf"); 27611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* tmpnam(char*) __warnattr("tmpnam possibly used unsafely; consider using mkstemp"); 27711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vsprintf(char* __restrict, const char* __restrict, __va_list) 27811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(2, 0); //__warnattr("vsprintf is often misused; please use vsnprintf"); 27911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __XPG_VISIBLE 28011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar* tempnam(const char*, const char*) 28111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __warnattr("tempnam possibly used unsafely; consider using mkstemp"); 28211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 28311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 28411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 28511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int rename(const char*, const char*); 28611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern int renameat(int, const char*, int, const char*); 28711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 28811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fgetpos(FILE * __restrict, fpos_t * __restrict); 28911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fsetpos(FILE *, const fpos_t *); 29011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 29111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fseeko(FILE *, off_t, int); 29211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertoff_t ftello(FILE *); 29311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 29411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __ISO_C_VISIBLE >= 1999 || __BSD_VISIBLE 29511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint snprintf(char * __restrict, size_t, const char * __restrict, ...) 29611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(3, 4); 29711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vfscanf(FILE * __restrict, const char * __restrict, __va_list) 29811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __scanflike(2, 0); 29911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vscanf(const char *, __va_list) 30011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __scanflike(1, 0); 30111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vsnprintf(char * __restrict, size_t, const char * __restrict, __va_list) 30211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(3, 0); 30311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vsscanf(const char * __restrict, const char * __restrict, __va_list) 30411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __scanflike(2, 0); 30511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* __ISO_C_VISIBLE >= 1999 || __BSD_VISIBLE */ 30611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 30711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 30811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 30911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 31011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 31111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Functions defined in POSIX 1003.1. 31211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 31311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE 31411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define L_ctermid 1024 /* size for ctermid(); PATH_MAX */ 31511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 31611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 31711cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertFILE *fdopen(int, const char *); 31811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fileno(FILE *); 31911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 32011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if (__POSIX_VISIBLE >= 199209) 32111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint pclose(FILE *); 32211cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertFILE *popen(const char *, const char *); 32311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 32411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 32511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __POSIX_VISIBLE >= 199506 32611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid flockfile(FILE *); 32711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint ftrylockfile(FILE *); 32811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid funlockfile(FILE *); 32911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 33011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 33111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * These are normally used through macros as defined below, but POSIX 33211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * requires functions as well. 33311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 33411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint getc_unlocked(FILE *); 33511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint getchar_unlocked(void); 33611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint putc_unlocked(int, FILE *); 33711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint putchar_unlocked(int); 33811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* __POSIX_VISIBLE >= 199506 */ 33911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 34011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 34111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 34211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE */ 34311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 34411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 34511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Routines that are purely local. 34611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 34711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __BSD_VISIBLE 34811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 34911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint asprintf(char ** __restrict, const char * __restrict, ...) 35011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(2, 3); 35111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar *fgetln(FILE * __restrict, size_t * __restrict); 35211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fpurge(FILE *); 35311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid setbuffer(FILE *, char *, int); 35411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint setlinebuf(FILE *); 35511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vasprintf(char ** __restrict, const char * __restrict, 35611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __va_list) 35711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __printflike(2, 0); 35811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 35911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 36011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 36111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Stdio function-access interface. 36211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 36311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 36411cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertFILE *funopen(const void *, 36511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int (*)(void *, char *, int), 36611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int (*)(void *, const char *, int), 36711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert fpos_t (*)(void *, fpos_t, int), 36811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int (*)(void *)); 36911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 37011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0) 37111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0) 37211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* __BSD_VISIBLE */ 37311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 37411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if defined(__BIONIC_FORTIFY) 37511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 37611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 37711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 37811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 37911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__printflike(3, 0) 38011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vsnprintf(char *dest, size_t size, const char *format, __va_list ap) 38111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 38211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___vsnprintf_chk(dest, size, 0, __bos(dest), format, ap); 38311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 38411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 38511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 38611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__printflike(2, 0) 38711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint vsprintf(char *dest, const char *format, __va_list ap) 38811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 38911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___vsprintf_chk(dest, 0, __bos(dest), format, ap); 39011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 39111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 39211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if defined(__clang__) 39311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert #if !defined(snprintf) 39411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert #define __wrap_snprintf(dest, size, ...) __builtin___snprintf_chk(dest, size, 0, __bos(dest), __VA_ARGS__) 39511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert #define snprintf(...) __wrap_snprintf(__VA_ARGS__) 39611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert #endif 39711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 39811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 39911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__printflike(3, 4) 40011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint snprintf(char *dest, size_t size, const char *format, ...) 40111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 40211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___snprintf_chk(dest, size, 0, 40311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __bos(dest), format, __builtin_va_arg_pack()); 40411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 40511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 40611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 40711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if defined(__clang__) 40811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert #if !defined(sprintf) 40911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert #define __wrap_sprintf(dest, ...) __builtin___sprintf_chk(dest, 0, __bos(dest), __VA_ARGS__) 41011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert #define sprintf(...) __wrap_sprintf(__VA_ARGS__) 41111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert #endif 41211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 41311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 41411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__printflike(2, 3) 41511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint sprintf(char *dest, const char *format, ...) 41611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 41711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __builtin___sprintf_chk(dest, 0, 41811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __bos(dest), format, __builtin_va_arg_pack()); 41911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 42011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 42111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 42211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* __fgets_chk(char*, int, FILE*, size_t); 42311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern char* __fgets_real(char*, int, FILE*) __asm__(__USER_LABEL_PREFIX__ "fgets"); 42411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__errordecl(__fgets_too_big_error, "fgets called with size bigger than buffer"); 42511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__errordecl(__fgets_too_small_error, "fgets called with size less than zero"); 42611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 42711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if !defined(__clang__) 42811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 42911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BIONIC_FORTIFY_INLINE 43011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertchar *fgets(char* dest, int size, FILE* stream) { 43111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert size_t bos = __bos(dest); 43211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 43311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler can prove, at compile time, that the passed in size 43411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // is always negative. Force a compiler error. 43511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(size) && (size < 0)) { 43611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __fgets_too_small_error(); 43711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 43811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 43911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler doesn't know destination size. Don't call __fgets_chk 44011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 44111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __fgets_real(dest, size, stream); 44211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 44311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 44411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler can prove, at compile time, that the passed in size 44511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // is always <= the actual object size. Don't call __fgets_chk 44611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(size) && (size <= (int) bos)) { 44711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __fgets_real(dest, size, stream); 44811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 44911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 45011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // Compiler can prove, at compile time, that the passed in size 45111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert // is always > the actual object size. Force a compiler error. 45211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (__builtin_constant_p(size) && (size > (int) bos)) { 45311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __fgets_too_big_error(); 45411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 45511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 45611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return __fgets_chk(dest, size, stream, bos); 45711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 45811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 45911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* !defined(__clang__) */ 46011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 46111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 46211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 46311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* defined(__BIONIC_FORTIFY) */ 46411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 46511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* _STDIO_H_ */ 466