0b8f25bbca
it or _GNU_SOURCE is defined. * io/fcntl.h: Protect *at and AT_* with [__USE_ATFILE] instead of [__USE_GNU]. * libio/stdio.h: Likewise. * posix/unistd.h: Likewise. * time/sys/time.h: Likewise.
845 lines
28 KiB
C
845 lines
28 KiB
C
/* Define ISO C stdio on top of C++ iostreams.
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|
Copyright (C) 1991,1994-2004,2005,2006 Free Software Foundation, Inc.
|
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This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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|
02111-1307 USA. */
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|
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/*
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|
* ISO C99 Standard: 7.19 Input/output <stdio.h>
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|
*/
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#ifndef _STDIO_H
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|
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#if !defined __need_FILE && !defined __need___FILE
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# define _STDIO_H 1
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# include <features.h>
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|
|
__BEGIN_DECLS
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|
|
# define __need_size_t
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|
# define __need_NULL
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|
# include <stddef.h>
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|
|
|
# include <bits/types.h>
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|
# define __need_FILE
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# define __need___FILE
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|
#endif /* Don't need FILE. */
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|
|
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|
#if !defined __FILE_defined && defined __need_FILE
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|
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__BEGIN_NAMESPACE_STD
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/* The opaque type of streams. This is the definition used elsewhere. */
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typedef struct _IO_FILE FILE;
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__END_NAMESPACE_STD
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|
#if defined __USE_LARGEFILE64 || defined __USE_SVID || defined __USE_POSIX \
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|| defined __USE_BSD || defined __USE_ISOC99 || defined __USE_XOPEN \
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|| defined __USE_POSIX2
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__USING_NAMESPACE_STD(FILE)
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|
#endif
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|
|
# define __FILE_defined 1
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|
#endif /* FILE not defined. */
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#undef __need_FILE
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|
|
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|
#if !defined ____FILE_defined && defined __need___FILE
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|
|
/* The opaque type of streams. This is the definition used elsewhere. */
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|
typedef struct _IO_FILE __FILE;
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|
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# define ____FILE_defined 1
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#endif /* __FILE not defined. */
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#undef __need___FILE
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|
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#ifdef _STDIO_H
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#define _STDIO_USES_IOSTREAM
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#include <libio.h>
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|
|
#ifdef __USE_XOPEN
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|
# ifdef __GNUC__
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|
# ifndef _VA_LIST_DEFINED
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|
typedef _G_va_list va_list;
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|
# define _VA_LIST_DEFINED
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|
# endif
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|
# else
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|
# include <stdarg.h>
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|
# endif
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|
#endif
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|
|
|
/* The type of the second argument to `fgetpos' and `fsetpos'. */
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__BEGIN_NAMESPACE_STD
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|
#ifndef __USE_FILE_OFFSET64
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typedef _G_fpos_t fpos_t;
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#else
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typedef _G_fpos64_t fpos_t;
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#endif
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__END_NAMESPACE_STD
|
|
#ifdef __USE_LARGEFILE64
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typedef _G_fpos64_t fpos64_t;
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#endif
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|
|
/* The possibilities for the third argument to `setvbuf'. */
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|
#define _IOFBF 0 /* Fully buffered. */
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#define _IOLBF 1 /* Line buffered. */
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#define _IONBF 2 /* No buffering. */
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|
|
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/* Default buffer size. */
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#ifndef BUFSIZ
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# define BUFSIZ _IO_BUFSIZ
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#endif
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|
|
|
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/* End of file character.
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|
Some things throughout the library rely on this being -1. */
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#ifndef EOF
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|
# define EOF (-1)
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|
#endif
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|
|
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|
/* The possibilities for the third argument to `fseek'.
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|
These values should not be changed. */
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|
#define SEEK_SET 0 /* Seek from beginning of file. */
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#define SEEK_CUR 1 /* Seek from current position. */
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|
#define SEEK_END 2 /* Seek from end of file. */
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|
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|
#if defined __USE_SVID || defined __USE_XOPEN
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/* Default path prefix for `tempnam' and `tmpnam'. */
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|
# define P_tmpdir "/tmp"
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#endif
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|
|
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|
/* Get the values:
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|
L_tmpnam How long an array of chars must be to be passed to `tmpnam'.
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TMP_MAX The minimum number of unique filenames generated by tmpnam
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|
(and tempnam when it uses tmpnam's name space),
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|
or tempnam (the two are separate).
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|
L_ctermid How long an array to pass to `ctermid'.
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|
L_cuserid How long an array to pass to `cuserid'.
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FOPEN_MAX Minimum number of files that can be open at once.
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|
FILENAME_MAX Maximum length of a filename. */
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#include <bits/stdio_lim.h>
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|
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/* Standard streams. */
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|
extern struct _IO_FILE *stdin; /* Standard input stream. */
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|
extern struct _IO_FILE *stdout; /* Standard output stream. */
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|
extern struct _IO_FILE *stderr; /* Standard error output stream. */
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|
/* C89/C99 say they're macros. Make them happy. */
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|
#define stdin stdin
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|
#define stdout stdout
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|
#define stderr stderr
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|
|
__BEGIN_NAMESPACE_STD
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|
/* Remove file FILENAME. */
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|
extern int remove (__const char *__filename) __THROW;
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|
/* Rename file OLD to NEW. */
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|
extern int rename (__const char *__old, __const char *__new) __THROW;
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|
__END_NAMESPACE_STD
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|
|
|
#ifdef __USE_ATFILE
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|
/* Rename file OLD relative to OLDFD to NEW relative to NEWFD. */
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|
extern int renameat (int __oldfd, __const char *__old, int __newfd,
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|
__const char *__new) __THROW;
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|
#endif
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|
|
|
__BEGIN_NAMESPACE_STD
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|
/* Create a temporary file and open it read/write.
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|
This function is a possible cancellation points and therefore not
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|
marked with __THROW. */
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#ifndef __USE_FILE_OFFSET64
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extern FILE *tmpfile (void);
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#else
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# ifdef __REDIRECT
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extern FILE *__REDIRECT (tmpfile, (void), tmpfile64);
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# else
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# define tmpfile tmpfile64
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# endif
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#endif
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|
#ifdef __USE_LARGEFILE64
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|
extern FILE *tmpfile64 (void);
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|
#endif
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/* Generate a temporary filename. */
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extern char *tmpnam (char *__s) __THROW;
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__END_NAMESPACE_STD
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#ifdef __USE_MISC
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/* This is the reentrant variant of `tmpnam'. The only difference is
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that it does not allow S to be NULL. */
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extern char *tmpnam_r (char *__s) __THROW;
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#endif
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#if defined __USE_SVID || defined __USE_XOPEN
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/* Generate a unique temporary filename using up to five characters of PFX
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|
if it is not NULL. The directory to put this file in is searched for
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as follows: First the environment variable "TMPDIR" is checked.
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|
If it contains the name of a writable directory, that directory is used.
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If not and if DIR is not NULL, that value is checked. If that fails,
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P_tmpdir is tried and finally "/tmp". The storage for the filename
|
|
is allocated by `malloc'. */
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extern char *tempnam (__const char *__dir, __const char *__pfx)
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__THROW __attribute_malloc__;
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#endif
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|
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__BEGIN_NAMESPACE_STD
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|
/* Close STREAM.
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|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
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|
extern int fclose (FILE *__stream);
|
|
/* Flush STREAM, or all streams if STREAM is NULL.
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|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
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|
extern int fflush (FILE *__stream);
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__END_NAMESPACE_STD
|
|
|
|
#ifdef __USE_MISC
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|
/* Faster versions when locking is not required.
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|
|
|
This function is not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation it is a cancellation point and
|
|
therefore not marked with __THROW. */
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|
extern int fflush_unlocked (FILE *__stream);
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|
#endif
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|
|
#ifdef __USE_GNU
|
|
/* Close all streams.
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|
|
|
This function is not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation it is a cancellation point and
|
|
therefore not marked with __THROW. */
|
|
extern int fcloseall (void);
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|
#endif
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|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
#ifndef __USE_FILE_OFFSET64
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|
/* Open a file and create a new stream for it.
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|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern FILE *fopen (__const char *__restrict __filename,
|
|
__const char *__restrict __modes);
|
|
/* Open a file, replacing an existing stream with it.
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|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern FILE *freopen (__const char *__restrict __filename,
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__const char *__restrict __modes,
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|
FILE *__restrict __stream);
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|
#else
|
|
# ifdef __REDIRECT
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|
extern FILE *__REDIRECT (fopen, (__const char *__restrict __filename,
|
|
__const char *__restrict __modes), fopen64);
|
|
extern FILE *__REDIRECT (freopen, (__const char *__restrict __filename,
|
|
__const char *__restrict __modes,
|
|
FILE *__restrict __stream), freopen64);
|
|
# else
|
|
# define fopen fopen64
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|
# define freopen freopen64
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|
# endif
|
|
#endif
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|
__END_NAMESPACE_STD
|
|
#ifdef __USE_LARGEFILE64
|
|
extern FILE *fopen64 (__const char *__restrict __filename,
|
|
__const char *__restrict __modes);
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|
extern FILE *freopen64 (__const char *__restrict __filename,
|
|
__const char *__restrict __modes,
|
|
FILE *__restrict __stream);
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|
#endif
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|
|
|
#ifdef __USE_POSIX
|
|
/* Create a new stream that refers to an existing system file descriptor. */
|
|
extern FILE *fdopen (int __fd, __const char *__modes) __THROW;
|
|
#endif
|
|
|
|
#ifdef __USE_GNU
|
|
/* Create a new stream that refers to the given magic cookie,
|
|
and uses the given functions for input and output. */
|
|
extern FILE *fopencookie (void *__restrict __magic_cookie,
|
|
__const char *__restrict __modes,
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|
_IO_cookie_io_functions_t __io_funcs) __THROW;
|
|
|
|
/* Create a new stream that refers to a memory buffer. */
|
|
extern FILE *fmemopen (void *__s, size_t __len, __const char *__modes) __THROW;
|
|
|
|
/* Open a stream that writes into a malloc'd buffer that is expanded as
|
|
necessary. *BUFLOC and *SIZELOC are updated with the buffer's location
|
|
and the number of characters written on fflush or fclose. */
|
|
extern FILE *open_memstream (char **__restrict __bufloc,
|
|
size_t *__restrict __sizeloc) __THROW;
|
|
#endif
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* If BUF is NULL, make STREAM unbuffered.
|
|
Else make it use buffer BUF, of size BUFSIZ. */
|
|
extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __THROW;
|
|
/* Make STREAM use buffering mode MODE.
|
|
If BUF is not NULL, use N bytes of it for buffering;
|
|
else allocate an internal buffer N bytes long. */
|
|
extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
|
|
int __modes, size_t __n) __THROW;
|
|
__END_NAMESPACE_STD
|
|
|
|
#ifdef __USE_BSD
|
|
/* If BUF is NULL, make STREAM unbuffered.
|
|
Else make it use SIZE bytes of BUF for buffering. */
|
|
extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
|
|
size_t __size) __THROW;
|
|
|
|
/* Make STREAM line-buffered. */
|
|
extern void setlinebuf (FILE *__stream) __THROW;
|
|
#endif
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Write formatted output to STREAM.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int fprintf (FILE *__restrict __stream,
|
|
__const char *__restrict __format, ...);
|
|
/* Write formatted output to stdout.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int printf (__const char *__restrict __format, ...);
|
|
/* Write formatted output to S. */
|
|
extern int sprintf (char *__restrict __s,
|
|
__const char *__restrict __format, ...) __THROW;
|
|
|
|
/* Write formatted output to S from argument list ARG.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int vfprintf (FILE *__restrict __s, __const char *__restrict __format,
|
|
_G_va_list __arg);
|
|
/* Write formatted output to stdout from argument list ARG.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int vprintf (__const char *__restrict __format, _G_va_list __arg);
|
|
/* Write formatted output to S from argument list ARG. */
|
|
extern int vsprintf (char *__restrict __s, __const char *__restrict __format,
|
|
_G_va_list __arg) __THROW;
|
|
__END_NAMESPACE_STD
|
|
|
|
#if defined __USE_BSD || defined __USE_ISOC99 || defined __USE_UNIX98
|
|
__BEGIN_NAMESPACE_C99
|
|
/* Maximum chars of output to write in MAXLEN. */
|
|
extern int snprintf (char *__restrict __s, size_t __maxlen,
|
|
__const char *__restrict __format, ...)
|
|
__THROW __attribute__ ((__format__ (__printf__, 3, 4)));
|
|
|
|
extern int vsnprintf (char *__restrict __s, size_t __maxlen,
|
|
__const char *__restrict __format, _G_va_list __arg)
|
|
__THROW __attribute__ ((__format__ (__printf__, 3, 0)));
|
|
__END_NAMESPACE_C99
|
|
#endif
|
|
|
|
#ifdef __USE_GNU
|
|
/* Write formatted output to a string dynamically allocated with `malloc'.
|
|
Store the address of the string in *PTR. */
|
|
extern int vasprintf (char **__restrict __ptr, __const char *__restrict __f,
|
|
_G_va_list __arg)
|
|
__THROW __attribute__ ((__format__ (__printf__, 2, 0)));
|
|
extern int __asprintf (char **__restrict __ptr,
|
|
__const char *__restrict __fmt, ...)
|
|
__THROW __attribute__ ((__format__ (__printf__, 2, 3)));
|
|
extern int asprintf (char **__restrict __ptr,
|
|
__const char *__restrict __fmt, ...)
|
|
__THROW __attribute__ ((__format__ (__printf__, 2, 3)));
|
|
|
|
/* Write formatted output to a file descriptor.
|
|
|
|
These functions are not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation they are cancellation points and
|
|
therefore not marked with __THROW. */
|
|
extern int vdprintf (int __fd, __const char *__restrict __fmt,
|
|
_G_va_list __arg)
|
|
__attribute__ ((__format__ (__printf__, 2, 0)));
|
|
extern int dprintf (int __fd, __const char *__restrict __fmt, ...)
|
|
__attribute__ ((__format__ (__printf__, 2, 3)));
|
|
#endif
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Read formatted input from STREAM.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int fscanf (FILE *__restrict __stream,
|
|
__const char *__restrict __format, ...) __wur;
|
|
/* Read formatted input from stdin.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int scanf (__const char *__restrict __format, ...) __wur;
|
|
/* Read formatted input from S. */
|
|
extern int sscanf (__const char *__restrict __s,
|
|
__const char *__restrict __format, ...) __THROW;
|
|
__END_NAMESPACE_STD
|
|
|
|
#ifdef __USE_ISOC99
|
|
__BEGIN_NAMESPACE_C99
|
|
/* Read formatted input from S into argument list ARG.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int vfscanf (FILE *__restrict __s, __const char *__restrict __format,
|
|
_G_va_list __arg)
|
|
__attribute__ ((__format__ (__scanf__, 2, 0))) __wur;
|
|
|
|
/* Read formatted input from stdin into argument list ARG.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int vscanf (__const char *__restrict __format, _G_va_list __arg)
|
|
__attribute__ ((__format__ (__scanf__, 1, 0))) __wur;
|
|
|
|
/* Read formatted input from S into argument list ARG. */
|
|
extern int vsscanf (__const char *__restrict __s,
|
|
__const char *__restrict __format, _G_va_list __arg)
|
|
__THROW __attribute__ ((__format__ (__scanf__, 2, 0)));
|
|
__END_NAMESPACE_C99
|
|
#endif /* Use ISO C9x. */
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Read a character from STREAM.
|
|
|
|
These functions are possible cancellation points and therefore not
|
|
marked with __THROW. */
|
|
extern int fgetc (FILE *__stream);
|
|
extern int getc (FILE *__stream);
|
|
|
|
/* Read a character from stdin.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int getchar (void);
|
|
__END_NAMESPACE_STD
|
|
|
|
/* The C standard explicitly says this is a macro, so we always do the
|
|
optimization for it. */
|
|
#define getc(_fp) _IO_getc (_fp)
|
|
|
|
#if defined __USE_POSIX || defined __USE_MISC
|
|
/* These are defined in POSIX.1:1996.
|
|
|
|
These functions are possible cancellation points and therefore not
|
|
marked with __THROW. */
|
|
extern int getc_unlocked (FILE *__stream);
|
|
extern int getchar_unlocked (void);
|
|
#endif /* Use POSIX or MISC. */
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster version when locking is not necessary.
|
|
|
|
This function is not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation it is a cancellation point and
|
|
therefore not marked with __THROW. */
|
|
extern int fgetc_unlocked (FILE *__stream);
|
|
#endif /* Use MISC. */
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Write a character to STREAM.
|
|
|
|
These functions are possible cancellation points and therefore not
|
|
marked with __THROW.
|
|
|
|
These functions is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int fputc (int __c, FILE *__stream);
|
|
extern int putc (int __c, FILE *__stream);
|
|
|
|
/* Write a character to stdout.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int putchar (int __c);
|
|
__END_NAMESPACE_STD
|
|
|
|
/* The C standard explicitly says this can be a macro,
|
|
so we always do the optimization for it. */
|
|
#define putc(_ch, _fp) _IO_putc (_ch, _fp)
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster version when locking is not necessary.
|
|
|
|
This function is not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation it is a cancellation point and
|
|
therefore not marked with __THROW. */
|
|
extern int fputc_unlocked (int __c, FILE *__stream);
|
|
#endif /* Use MISC. */
|
|
|
|
#if defined __USE_POSIX || defined __USE_MISC
|
|
/* These are defined in POSIX.1:1996.
|
|
|
|
These functions are possible cancellation points and therefore not
|
|
marked with __THROW. */
|
|
extern int putc_unlocked (int __c, FILE *__stream);
|
|
extern int putchar_unlocked (int __c);
|
|
#endif /* Use POSIX or MISC. */
|
|
|
|
|
|
#if defined __USE_SVID || defined __USE_MISC \
|
|
|| (defined __USE_XOPEN && !defined __USE_XOPEN2K)
|
|
/* Get a word (int) from STREAM. */
|
|
extern int getw (FILE *__stream);
|
|
|
|
/* Write a word (int) to STREAM. */
|
|
extern int putw (int __w, FILE *__stream);
|
|
#endif
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Get a newline-terminated string of finite length from STREAM.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
|
|
__wur;
|
|
|
|
/* Get a newline-terminated string from stdin, removing the newline.
|
|
DO NOT USE THIS FUNCTION!! There is no limit on how much it will read.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern char *gets (char *__s) __wur;
|
|
__END_NAMESPACE_STD
|
|
|
|
#ifdef __USE_GNU
|
|
/* This function does the same as `fgets' but does not lock the stream.
|
|
|
|
This function is not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation it is a cancellation point and
|
|
therefore not marked with __THROW. */
|
|
extern char *fgets_unlocked (char *__restrict __s, int __n,
|
|
FILE *__restrict __stream) __wur;
|
|
#endif
|
|
|
|
|
|
#ifdef __USE_GNU
|
|
/* Read up to (and including) a DELIMITER from STREAM into *LINEPTR
|
|
(and null-terminate it). *LINEPTR is a pointer returned from malloc (or
|
|
NULL), pointing to *N characters of space. It is realloc'd as
|
|
necessary. Returns the number of characters read (not including the
|
|
null terminator), or -1 on error or EOF.
|
|
|
|
These functions are not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation they are cancellation points and
|
|
therefore not marked with __THROW. */
|
|
extern _IO_ssize_t __getdelim (char **__restrict __lineptr,
|
|
size_t *__restrict __n, int __delimiter,
|
|
FILE *__restrict __stream) __wur;
|
|
extern _IO_ssize_t getdelim (char **__restrict __lineptr,
|
|
size_t *__restrict __n, int __delimiter,
|
|
FILE *__restrict __stream) __wur;
|
|
|
|
/* Like `getdelim', but reads up to a newline.
|
|
|
|
This function is not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation it is a cancellation point and
|
|
therefore not marked with __THROW. */
|
|
extern _IO_ssize_t getline (char **__restrict __lineptr,
|
|
size_t *__restrict __n,
|
|
FILE *__restrict __stream) __wur;
|
|
#endif
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Write a string to STREAM.
|
|
|
|
This function is a possible cancellation points and therefore not
|
|
marked with __THROW. */
|
|
extern int fputs (__const char *__restrict __s, FILE *__restrict __stream);
|
|
|
|
/* Write a string, followed by a newline, to stdout.
|
|
|
|
This function is a possible cancellation points and therefore not
|
|
marked with __THROW. */
|
|
extern int puts (__const char *__s);
|
|
|
|
|
|
/* Push a character back onto the input buffer of STREAM.
|
|
|
|
This function is a possible cancellation points and therefore not
|
|
marked with __THROW. */
|
|
extern int ungetc (int __c, FILE *__stream);
|
|
|
|
|
|
/* Read chunks of generic data from STREAM.
|
|
|
|
This function is a possible cancellation points and therefore not
|
|
marked with __THROW. */
|
|
extern size_t fread (void *__restrict __ptr, size_t __size,
|
|
size_t __n, FILE *__restrict __stream) __wur;
|
|
/* Write chunks of generic data to STREAM.
|
|
|
|
This function is a possible cancellation points and therefore not
|
|
marked with __THROW. */
|
|
extern size_t fwrite (__const void *__restrict __ptr, size_t __size,
|
|
size_t __n, FILE *__restrict __s) __wur;
|
|
__END_NAMESPACE_STD
|
|
|
|
#ifdef __USE_GNU
|
|
/* This function does the same as `fputs' but does not lock the stream.
|
|
|
|
This function is not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation it is a cancellation point and
|
|
therefore not marked with __THROW. */
|
|
extern int fputs_unlocked (__const char *__restrict __s,
|
|
FILE *__restrict __stream);
|
|
#endif
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster versions when locking is not necessary.
|
|
|
|
These functions are not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation they are cancellation points and
|
|
therefore not marked with __THROW. */
|
|
extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
|
|
size_t __n, FILE *__restrict __stream) __wur;
|
|
extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
|
|
size_t __n, FILE *__restrict __stream) __wur;
|
|
#endif
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Seek to a certain position on STREAM.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int fseek (FILE *__stream, long int __off, int __whence);
|
|
/* Return the current position of STREAM.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern long int ftell (FILE *__stream) __wur;
|
|
/* Rewind to the beginning of STREAM.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern void rewind (FILE *__stream);
|
|
__END_NAMESPACE_STD
|
|
|
|
/* The Single Unix Specification, Version 2, specifies an alternative,
|
|
more adequate interface for the two functions above which deal with
|
|
file offset. `long int' is not the right type. These definitions
|
|
are originally defined in the Large File Support API. */
|
|
|
|
#if defined __USE_LARGEFILE || defined __USE_XOPEN2K
|
|
# ifndef __USE_FILE_OFFSET64
|
|
/* Seek to a certain position on STREAM.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int fseeko (FILE *__stream, __off_t __off, int __whence);
|
|
/* Return the current position of STREAM.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern __off_t ftello (FILE *__stream) __wur;
|
|
# else
|
|
# ifdef __REDIRECT
|
|
extern int __REDIRECT (fseeko,
|
|
(FILE *__stream, __off64_t __off, int __whence),
|
|
fseeko64);
|
|
extern __off64_t __REDIRECT (ftello, (FILE *__stream), ftello64);
|
|
# else
|
|
# define fseeko fseeko64
|
|
# define ftello ftello64
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
#ifndef __USE_FILE_OFFSET64
|
|
/* Get STREAM's position.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos);
|
|
/* Set STREAM's position.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int fsetpos (FILE *__stream, __const fpos_t *__pos);
|
|
#else
|
|
# ifdef __REDIRECT
|
|
extern int __REDIRECT (fgetpos, (FILE *__restrict __stream,
|
|
fpos_t *__restrict __pos), fgetpos64);
|
|
extern int __REDIRECT (fsetpos,
|
|
(FILE *__stream, __const fpos_t *__pos), fsetpos64);
|
|
# else
|
|
# define fgetpos fgetpos64
|
|
# define fsetpos fsetpos64
|
|
# endif
|
|
#endif
|
|
__END_NAMESPACE_STD
|
|
|
|
#ifdef __USE_LARGEFILE64
|
|
extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence);
|
|
extern __off64_t ftello64 (FILE *__stream) __wur;
|
|
extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos);
|
|
extern int fsetpos64 (FILE *__stream, __const fpos64_t *__pos);
|
|
#endif
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Clear the error and EOF indicators for STREAM. */
|
|
extern void clearerr (FILE *__stream) __THROW;
|
|
/* Return the EOF indicator for STREAM. */
|
|
extern int feof (FILE *__stream) __THROW __wur;
|
|
/* Return the error indicator for STREAM. */
|
|
extern int ferror (FILE *__stream) __THROW __wur;
|
|
__END_NAMESPACE_STD
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster versions when locking is not required. */
|
|
extern void clearerr_unlocked (FILE *__stream) __THROW;
|
|
extern int feof_unlocked (FILE *__stream) __THROW __wur;
|
|
extern int ferror_unlocked (FILE *__stream) __THROW __wur;
|
|
#endif
|
|
|
|
|
|
__BEGIN_NAMESPACE_STD
|
|
/* Print a message describing the meaning of the value of errno.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern void perror (__const char *__s);
|
|
__END_NAMESPACE_STD
|
|
|
|
/* Provide the declarations for `sys_errlist' and `sys_nerr' if they
|
|
are available on this system. Even if available, these variables
|
|
should not be used directly. The `strerror' function provides
|
|
all the necessary functionality. */
|
|
#include <bits/sys_errlist.h>
|
|
|
|
|
|
#ifdef __USE_POSIX
|
|
/* Return the system file descriptor for STREAM. */
|
|
extern int fileno (FILE *__stream) __THROW __wur;
|
|
#endif /* Use POSIX. */
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster version when locking is not required. */
|
|
extern int fileno_unlocked (FILE *__stream) __THROW __wur;
|
|
#endif
|
|
|
|
|
|
#if (defined __USE_POSIX2 || defined __USE_SVID || defined __USE_BSD || \
|
|
defined __USE_MISC)
|
|
/* Create a new stream connected to a pipe running the given command.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern FILE *popen (__const char *__command, __const char *__modes) __wur;
|
|
|
|
/* Close a stream opened by popen and return the status of its child.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern int pclose (FILE *__stream);
|
|
#endif
|
|
|
|
|
|
#ifdef __USE_POSIX
|
|
/* Return the name of the controlling terminal. */
|
|
extern char *ctermid (char *__s) __THROW;
|
|
#endif /* Use POSIX. */
|
|
|
|
|
|
#ifdef __USE_XOPEN
|
|
/* Return the name of the current user. */
|
|
extern char *cuserid (char *__s);
|
|
#endif /* Use X/Open, but not issue 6. */
|
|
|
|
|
|
#ifdef __USE_GNU
|
|
struct obstack; /* See <obstack.h>. */
|
|
|
|
/* Write formatted output to an obstack. */
|
|
extern int obstack_printf (struct obstack *__restrict __obstack,
|
|
__const char *__restrict __format, ...)
|
|
__THROW __attribute__ ((__format__ (__printf__, 2, 3)));
|
|
extern int obstack_vprintf (struct obstack *__restrict __obstack,
|
|
__const char *__restrict __format,
|
|
_G_va_list __args)
|
|
__THROW __attribute__ ((__format__ (__printf__, 2, 0)));
|
|
#endif /* Use GNU. */
|
|
|
|
|
|
#if defined __USE_POSIX || defined __USE_MISC
|
|
/* These are defined in POSIX.1:1996. */
|
|
|
|
/* Acquire ownership of STREAM. */
|
|
extern void flockfile (FILE *__stream) __THROW;
|
|
|
|
/* Try to acquire ownership of STREAM but do not block if it is not
|
|
possible. */
|
|
extern int ftrylockfile (FILE *__stream) __THROW __wur;
|
|
|
|
/* Relinquish the ownership granted for STREAM. */
|
|
extern void funlockfile (FILE *__stream) __THROW;
|
|
#endif /* POSIX || misc */
|
|
|
|
#if defined __USE_XOPEN && !defined __USE_XOPEN2K && !defined __USE_GNU
|
|
/* The X/Open standard requires some functions and variables to be
|
|
declared here which do not belong into this header. But we have to
|
|
follow. In GNU mode we don't do this nonsense. */
|
|
# define __need_getopt
|
|
# include <getopt.h>
|
|
#endif /* X/Open, but not issue 6 and not for GNU. */
|
|
|
|
/* If we are compiling with optimizing read this file. It contains
|
|
several optimizing inline functions and macros. */
|
|
#ifdef __USE_EXTERN_INLINES
|
|
# include <bits/stdio.h>
|
|
#endif
|
|
#if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus
|
|
# include <bits/stdio2.h>
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* <stdio.h> included. */
|
|
|
|
#endif /* !_STDIO_H */
|