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992af677a8
1998-10-25 Andreas Jaeger <aj@arthur.rhein-neckar.de> * include/stdio.h: Included <stddef.h> for size_t. * stdio/stdio.h: Move __path_search, __gen_tempname, __libc_fatal to ... * include/stdio.h: ...here. * libio/stdio.h: Removed __path_search, __gen_tempname, __libc_fatal.
833 lines
27 KiB
C
833 lines
27 KiB
C
/* Copyright (C) 1991,92,93,94,95,96,97,98 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/*
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* ISO C Standard: 4.9 INPUT/OUTPUT <stdio.h>
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*/
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#ifndef _STDIO_H
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#if !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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#define __need___va_list
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#include <stdarg.h>
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#ifndef __GNUC_VA_LIST
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#define __gnuc_va_list __ptr_t
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#endif
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#include <bits/types.h>
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#endif /* Don't need FILE. */
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#undef __need_FILE
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#ifndef __FILE_defined
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/* The opaque type of streams. */
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typedef struct __stdio_file FILE;
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#define __FILE_defined 1
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#endif /* FILE not defined. */
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#ifdef _STDIO_H
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/* The type of the second argument to `fgetpos' and `fsetpos'. */
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typedef __off_t fpos_t;
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/* The mode of I/O, as given in the MODE argument to fopen, etc. */
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typedef struct
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{
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unsigned int __read:1; /* Open for reading. */
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unsigned int __write:1; /* Open for writing. */
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unsigned int __append:1; /* Open for appending. */
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unsigned int __binary:1; /* Opened binary. */
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unsigned int __create:1; /* Create the file. */
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unsigned int __exclusive:1; /* Error if it already exists. */
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unsigned int __truncate:1; /* Truncate the file on opening. */
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} __io_mode;
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/* Functions to do I/O and file management for a stream. */
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/* Read NBYTES bytes from COOKIE into a buffer pointed to by BUF.
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Return number of bytes read. */
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typedef __ssize_t __io_read_fn __PMT ((__ptr_t __cookie, char *__buf,
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size_t __nbytes));
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/* Write N bytes pointed to by BUF to COOKIE. Write all N bytes
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unless there is an error. Return number of bytes written, or -1 if
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there is an error without writing anything. If the file has been
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opened for append (__mode.__append set), then set the file pointer
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to the end of the file and then do the write; if not, just write at
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the current file pointer. */
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typedef __ssize_t __io_write_fn __PMT ((__ptr_t __cookie, __const char *__buf,
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size_t __n));
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/* Move COOKIE's file position to *POS bytes from the
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beginning of the file (if W is SEEK_SET),
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the current position (if W is SEEK_CUR),
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or the end of the file (if W is SEEK_END).
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Set *POS to the new file position.
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Returns zero if successful, nonzero if not. */
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typedef int __io_seek_fn __PMT ((__ptr_t __cookie, fpos_t *__pos, int __w));
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/* Close COOKIE. */
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typedef int __io_close_fn __PMT ((__ptr_t __cookie));
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/* Return the file descriptor associated with COOKIE,
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or -1 on error. There need not be any associated file descriptor. */
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typedef int __io_fileno_fn __PMT ((__ptr_t __cookie));
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#ifdef __USE_GNU
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/* User-visible names for the above. */
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typedef __io_read_fn cookie_read_function_t;
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typedef __io_write_fn cookie_write_function_t;
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typedef __io_seek_fn cookie_seek_function_t;
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typedef __io_close_fn cookie_close_function_t;
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typedef __io_fileno_fn cookie_fileno_function_t;
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#endif
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/* Low level interface, independent of FILE representation. */
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#if defined __USE_GNU && !defined _LIBC
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/* Define the user-visible type, with user-friendly member names. */
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typedef struct
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{
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__io_read_fn *read; /* Read bytes. */
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__io_write_fn *write; /* Write bytes. */
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__io_seek_fn *seek; /* Seek/tell file position. */
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__io_close_fn *close; /* Close file. */
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__io_fileno_fn *fileno; /* Return file descriptor. */
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} cookie_io_functions_t;
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/* This name is still used in the prototypes in this file. */
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typedef cookie_io_functions_t __io_functions;
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#else
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/* Stick to ANSI-safe names. */
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typedef struct
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{
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__io_read_fn *__read; /* Read bytes. */
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__io_write_fn *__write; /* Write bytes. */
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__io_seek_fn *__seek; /* Seek/tell file position. */
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__io_close_fn *__close; /* Close file. */
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__io_fileno_fn *__fileno; /* Return file descriptor. */
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} __io_functions;
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#endif
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/* Higher level interface, dependent on FILE representation. */
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typedef struct
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{
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/* Make room in the input buffer. */
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int (*__input) __PMT ((FILE *__stream));
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/* Make room in the output buffer. */
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void (*__output) __PMT ((FILE *__stream, int __c));
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} __room_functions;
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extern __const __io_functions __default_io_functions;
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extern __const __room_functions __default_room_functions;
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/* Default close function. */
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extern __io_close_fn __stdio_close;
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/* Open FILE with mode M, store cookie in *COOKIEPTR. */
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extern int __stdio_open __P ((__const char *__file, __io_mode __m,
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__ptr_t *__cookieptr));
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/* Put out an error message for when stdio needs to die. */
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extern void __stdio_errmsg __P ((__const char *__msg, size_t __len));
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/* For thread safe I/O functions we need a lock in each stream. We
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keep the type opaque here. */
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struct __stdio_lock;
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/* The FILE structure. */
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struct __stdio_file
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{
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/* Magic number for validation. Must be negative in open streams
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for the glue to Unix stdio getc/putc to work.
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NOTE: stdio/glue.c has special knowledge of these first four members. */
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int __magic;
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#define _IOMAGIC ((int) 0xfedabeeb) /* Magic number to fill `__magic'. */
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#define _GLUEMAGIC ((int) 0xfeedbabe) /* Magic for glued Unix streams. */
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char *__bufp; /* Pointer into the buffer. */
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char *__get_limit; /* Reading limit. */
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char *__put_limit; /* Writing limit. */
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char *__buffer; /* Base of buffer. */
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size_t __bufsize; /* Size of the buffer. */
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__ptr_t __cookie; /* Magic cookie. */
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__io_mode __mode; /* File access mode. */
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__io_functions __io_funcs; /* I/O functions. */
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__room_functions __room_funcs;/* I/O buffer room functions. */
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fpos_t __offset; /* Current file position. */
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fpos_t __target; /* Target file position. */
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FILE *__next; /* Next FILE in the linked list. */
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char *__pushback_bufp; /* Old bufp if char pushed back. */
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unsigned char __pushback; /* Pushed-back character. */
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unsigned int __pushed_back:1; /* A char has been pushed back. */
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unsigned int __eof:1; /* End of file encountered. */
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unsigned int __error:1; /* Error encountered. */
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unsigned int __userbuf:1; /* Buffer from user (should not be freed). */
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unsigned int __linebuf:1; /* Flush on newline. */
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unsigned int __linebuf_active:1; /* put_limit is not really in use. */
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unsigned int __seen:1; /* This stream has been seen. */
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unsigned int __ispipe:1; /* Nonzero if opened by popen. */
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struct __stdio_lock *__lock; /* Pointer to associated lock. */
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};
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/* All macros used internally by other macros here and by stdio functions begin
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with `__'. All of these may evaluate their arguments more than once. */
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/* Nonzero if STREAM is a valid stream.
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STREAM must be a modifiable lvalue (wow, I got to use that term).
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See stdio/glue.c for what the confusing bit is about. */
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#define __validfp(stream) \
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(stream != NULL && \
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({ if (stream->__magic == _GLUEMAGIC) \
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stream = *((struct { int __magic; FILE **__p; } *) stream)->__p; \
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stream->__magic == _IOMAGIC; }))
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/* Clear the error and EOF indicators of STREAM. */
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#define __clearerr(stream) ((stream)->__error = (stream)->__eof = 0)
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/* Nuke STREAM, making it unusable but available for reuse. */
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extern void __invalidate __P ((FILE *__stream));
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/* Make sure STREAM->__offset and STREAM->__target are initialized.
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Returns 0 if successful, or EOF on
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error (but doesn't set STREAM->__error). */
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extern int __stdio_check_offset __P ((FILE *__stream));
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/* The possibilities for the third argument to `setvbuf'. */
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#define _IOFBF 0x1 /* Full buffering. */
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#define _IOLBF 0x2 /* Line buffering. */
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#define _IONBF 0x4 /* No buffering. */
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/* Default buffer size. */
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#define BUFSIZ 1024
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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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#define EOF (-1)
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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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#ifdef __USE_SVID
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/* Default path prefix for `tempnam' and `tmpnam'. */
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#define P_tmpdir "/usr/tmp"
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#endif
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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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/* All the known streams are in a linked list
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linked by the `next' field of the FILE structure. */
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extern FILE *__stdio_head; /* Head of the list. */
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/* Standard streams. */
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extern FILE *stdin, *stdout, *stderr;
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#ifdef __STRICT_ANSI__
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/* ANSI says these are macros; satisfy pedants. */
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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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#endif
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/* Remove file FILENAME. */
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extern int remove __P ((__const char *__filename));
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/* Rename file OLD to NEW. */
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extern int rename __P ((__const char *__old, __const char *__new));
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/* Create a temporary file and open it read/write. */
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extern FILE *tmpfile __P ((void));
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#ifdef __USE_LARGEFILE64
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extern FILE *tmpfile64 __P ((void));
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#endif
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/* Generate a temporary filename. */
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extern char *tmpnam __P ((char *__s));
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#ifdef __USE_REENTRANT
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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 __P ((char *__s));
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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
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is allocated by `malloc'. */
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extern char *tempnam __P ((__const char *__dir, __const char *__pfx));
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#endif
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/* This performs actual output when necessary, flushing
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STREAM's buffer and optionally writing another character. */
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extern int __flshfp __P ((FILE *__stream, int __c));
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/* Close STREAM. */
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extern int fclose __P ((FILE *__stream));
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/* Flush STREAM, or all streams if STREAM is NULL. */
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extern int fflush __P ((FILE *__stream));
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#ifdef __USE_MISC
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/* Faster versions when locking is not required. */
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extern int fflush_unlocked __P ((FILE *__stream));
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#endif
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#ifdef __USE_GNU
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/* Close all streams. */
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extern int __fcloseall __P ((void));
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extern int fcloseall __P ((void));
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#endif
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/* Open a file and create a new stream for it. */
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extern FILE *fopen __P ((__const char *__filename, __const char *__modes));
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/* Open a file, replacing an existing stream with it. */
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extern FILE *freopen __P ((__const char *__restrict __filename,
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__const char *__restrict __modes,
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FILE *__restrict __stream));
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/* Return a new, zeroed, stream.
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You must set its cookie and io_mode.
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The first operation will give it a buffer unless you do.
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It will also give it the default functions unless you set the `seen' flag.
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The offset is set to -1, meaning it will be determined by doing a
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stationary seek. You can set it to avoid the initial tell call.
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The target is set to -1, meaning it will be set to the offset
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before the target is needed.
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Returns NULL if a stream can't be created. */
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extern FILE *__newstream __P ((void));
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#ifdef __USE_POSIX
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/* Create a new stream that refers to an existing system file descriptor. */
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extern FILE *__fdopen __P ((int __fd, __const char *__modes));
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extern FILE *fdopen __P ((int __fd, __const char *__modes));
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#endif
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#ifdef __USE_GNU
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/* Create a new stream that refers to the given magic cookie,
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and uses the given functions for input and output. */
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extern FILE *fopencookie __P ((__ptr_t __magic_cookie, __const char *__modes,
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__io_functions __io_funcs));
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/* Create a new stream that refers to a memory buffer. */
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extern FILE *fmemopen __P ((__ptr_t __s, size_t __len, __const char *__modes));
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/* Open a stream that writes into a malloc'd buffer that is expanded as
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necessary. *BUFLOC and *SIZELOC are updated with the buffer's location
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and the number of characters written on fflush or fclose. */
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extern FILE *open_memstream __P ((char **__bufloc, size_t *__sizeloc));
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#endif
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/* If BUF is NULL, make STREAM unbuffered.
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Else make it use buffer BUF, of size BUFSIZ. */
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extern void setbuf __P ((FILE *__restrict __stream, char *__restrict __buf));
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/* Make STREAM use buffering mode MODE.
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If BUF is not NULL, use N bytes of it for buffering;
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else allocate an internal buffer N bytes long. */
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extern int setvbuf __P ((FILE *__restrict __stream, char *__restrict __buf,
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int __modes, size_t __n));
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#ifdef __USE_BSD
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/* If BUF is NULL, make STREAM unbuffered.
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Else make it use SIZE bytes of BUF for buffering. */
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extern void setbuffer __P ((FILE *__stream, char *__buf, size_t __size));
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/* Make STREAM line-buffered. */
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extern void setlinebuf __P ((FILE *__stream));
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#endif
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/* Write formatted output to STREAM. */
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extern int fprintf __P ((FILE *__restrict __stream,
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__const char *__restrict __format, ...));
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/* Write formatted output to stdout. */
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extern int printf __P ((__const char *__restrict __format, ...));
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/* Write formatted output to S. */
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extern int sprintf __P ((char *__restrict __s,
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__const char *__restrict __format, ...));
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/* Write formatted output to S from argument list ARG. */
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extern int vfprintf __P ((FILE *__restrict __s,
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__const char *__restrict __format,
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__gnuc_va_list __arg));
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/* Write formatted output to stdout from argument list ARG. */
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extern int vprintf __P ((__const char *__restrict __format,
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__gnuc_va_list __arg));
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/* Write formatted output to S from argument list ARG. */
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extern int vsprintf __P ((char *__restrict __s,
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__const char *__restrict __format,
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__gnuc_va_list __arg));
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#ifdef __OPTIMIZE__
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extern __inline int
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vprintf (const char *__restrict __fmt, __gnuc_va_list __arg) __THROW
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{
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return vfprintf (stdout, __fmt, __arg);
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}
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#endif /* Optimizing. */
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#if defined __USE_BSD || defined __USE_ISOC9X
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/* Maximum chars of output to write in MAXLEN. */
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extern int __snprintf __P ((char *__s, size_t __maxlen,
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__const char *__format, ...))
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__attribute__ ((__format__ (__printf__, 3, 4)));
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extern int snprintf __P ((char *__s, size_t __maxlen,
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__const char *__format, ...))
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__attribute__ ((__format__ (__printf__, 3, 4)));
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extern int __vsnprintf __P ((char *__s, size_t __maxlen,
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__const char *__format, __gnuc_va_list __arg))
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__attribute__ ((__format__ (__printf__, 3, 0)));
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extern int vsnprintf __P ((char *__s, size_t __maxlen,
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__const char *__format, __gnuc_va_list __arg))
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__attribute__ ((__format__ (__printf__, 3, 0)));
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#endif
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#ifdef __USE_GNU
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/* Write formatted output to a string dynamically allocated with `malloc'.
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Store the address of the string in *PTR. */
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extern int vasprintf __P ((char **__restrict __ptr,
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__const char *__restrict __f, __gnuc_va_list __arg))
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__attribute__ ((__format__ (__printf__, 2, 0)));
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extern int __asprintf __P ((char **__restrict __ptr,
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__const char *__restrict __fmt, ...))
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__attribute__ ((__format__ (__printf__, 2, 3)));
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extern int asprintf __P ((char **__restrict __ptr,
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__const char *__restrict __fmt, ...))
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__attribute__ ((__format__ (__printf__, 2, 3)));
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/* Write formatted output to a file descriptor. */
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extern int vdprintf __P ((int __fd, __const char *__restrict __fmt,
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__gnuc_va_list __arg))
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__attribute__ ((__format__ (__printf__, 2, 0)));
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extern int dprintf __P ((int __fd, __const char *__restrict __fmt, ...))
|
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__attribute__ ((__format__ (__printf__, 2, 3)));
|
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#endif
|
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|
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/* Read formatted input from STREAM. */
|
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extern int fscanf __P ((FILE *__restrict __stream,
|
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__const char *__restrict __format, ...));
|
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/* Read formatted input from stdin. */
|
|
extern int scanf __P ((__const char *__restrict __format, ...));
|
|
/* Read formatted input from S. */
|
|
extern int sscanf __P ((__const char *__restrict __s,
|
|
__const char *__restrict __format, ...));
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|
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#ifdef __USE_ISOC9X
|
|
/* Read formatted input from S into argument list ARG. */
|
|
extern int __vfscanf __P ((FILE *__s, __const char *__format,
|
|
__gnuc_va_list __arg));
|
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extern int vfscanf __P ((FILE *__s, __const char *__format,
|
|
__gnuc_va_list __arg));
|
|
|
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/* Read formatted input from stdin into argument list ARG. */
|
|
extern int __vscanf __P ((__const char *__format, __gnuc_va_list __arg));
|
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extern int vscanf __P ((__const char *__format, __gnuc_va_list __arg));
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|
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/* Read formatted input from S into argument list ARG. */
|
|
extern int __vsscanf __P ((__const char *__s, __const char *__format,
|
|
__gnuc_va_list __arg));
|
|
extern int vsscanf __P ((__const char *__s, __const char *__format,
|
|
__gnuc_va_list __arg));
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|
|
|
|
|
#ifdef __OPTIMIZE__
|
|
extern __inline int
|
|
vfscanf (FILE *__s, const char *__fmt, __gnuc_va_list __arg) __THROW
|
|
{
|
|
return __vfscanf (__s, __fmt, __arg);
|
|
}
|
|
extern __inline int
|
|
vscanf (const char *__fmt, __gnuc_va_list __arg) __THROW
|
|
{
|
|
return __vfscanf (stdin, __fmt, __arg);
|
|
}
|
|
extern __inline int
|
|
vsscanf (const char *__s, const char *__fmt, __gnuc_va_list __arg) __THROW
|
|
{
|
|
return __vsscanf (__s, __fmt, __arg);
|
|
}
|
|
#endif /* Optimizing. */
|
|
#endif /* Use ISO C9x. */
|
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|
|
/* This does actual reading when necessary, filling STREAM's
|
|
buffer and returning the first character in it. */
|
|
extern int __fillbf __P ((FILE *__stream));
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/* Read a character from STREAM. */
|
|
extern int fgetc __P ((FILE *__stream));
|
|
extern int getc __P ((FILE *__stream));
|
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|
|
/* Read a character from stdin. */
|
|
extern int getchar __P ((void));
|
|
|
|
/* The C standard explicitly says this can
|
|
re-evaluate its argument, so it does. */
|
|
#define __getc(stream) \
|
|
((stream)->__bufp < (stream)->__get_limit ? \
|
|
(int) ((unsigned char) *(stream)->__bufp++) : __fillbf(stream))
|
|
|
|
/* The C standard explicitly says this is a macro,
|
|
so we always do the optimization for it. */
|
|
#define getc(stream) __getc(stream)
|
|
|
|
#ifdef __OPTIMIZE__
|
|
extern __inline int
|
|
getchar (void) __THROW
|
|
{
|
|
return __getc (stdin);
|
|
}
|
|
#endif /* Optimizing. */
|
|
|
|
#if defined __USE_POSIX || defined __USE_MISC
|
|
/* These are defined in POSIX.1:1996. */
|
|
extern int getc_unlocked __P ((FILE *__stream));
|
|
extern int getchar_unlocked __P ((void));
|
|
|
|
# ifdef __OPTIMIZE__
|
|
extern __inline int
|
|
getc_unlocked (FILE *__stream) __THROW
|
|
{
|
|
return __getc (__stream);
|
|
}
|
|
|
|
extern __inline int
|
|
getchar_unlocked (void) __THROW
|
|
{
|
|
return __getc (stdin);
|
|
}
|
|
# endif /* Optimizing. */
|
|
#endif /* Use POSIX or MISC. */
|
|
|
|
|
|
/* Write a character to STREAM. */
|
|
extern int fputc __P ((int __c, FILE *__stream));
|
|
extern int putc __P ((int __c, FILE *__stream));
|
|
|
|
/* Write a character to stdout. */
|
|
extern int putchar __P ((int __c));
|
|
|
|
|
|
/* The C standard explicitly says this can
|
|
re-evaluate its arguments, so it does. */
|
|
#define __putc(c, stream) \
|
|
((stream)->__bufp < (stream)->__put_limit ? \
|
|
(int) (unsigned char) (*(stream)->__bufp++ = (unsigned char) (c)) : \
|
|
__flshfp ((stream), (unsigned char) (c)))
|
|
|
|
/* The C standard explicitly says this can be a macro,
|
|
so we always do the optimization for it. */
|
|
#define putc(c, stream) __putc ((c), (stream))
|
|
|
|
#ifdef __OPTIMIZE__
|
|
extern __inline int
|
|
putchar (int __c) __THROW
|
|
{
|
|
return __putc (__c, stdout);
|
|
}
|
|
#endif
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster version when locking is not necessary. */
|
|
extern int fputc_unlocked __P ((int __c, FILE *__stream));
|
|
|
|
# ifdef __OPTIMIZE__
|
|
extern __inline int
|
|
fputc_unlocked (int __c, FILE *__stream) __THROW
|
|
{
|
|
return __putc (__c, __stream);
|
|
}
|
|
# endif /* Optimizing. */
|
|
#endif /* Use MISC. */
|
|
|
|
#if defined __USE_POSIX || defined __USE_MISC
|
|
/* These are defined in POSIX.1:1996. */
|
|
extern int putc_unlocked __P ((int __c, FILE *__stream));
|
|
extern int putchar_unlocked __P ((int __c));
|
|
|
|
# ifdef __OPTIMIZE__
|
|
extern __inline int
|
|
putc_unlocked (int __c, FILE *__stream) __THROW
|
|
{
|
|
return __putc (__c, __stream);
|
|
}
|
|
|
|
extern __inline int
|
|
putchar_unlocked (int __c) __THROW
|
|
{
|
|
return __putc (__c, stdout);
|
|
}
|
|
# endif /* Optimizing. */
|
|
#endif /* Use POSIX or MISC. */
|
|
|
|
|
|
#if defined __USE_SVID || defined __USE_MISC
|
|
/* Get a word (int) from STREAM. */
|
|
extern int getw __P ((FILE *__stream));
|
|
|
|
/* Write a word (int) to STREAM. */
|
|
extern int putw __P ((int __w, FILE *__stream));
|
|
#endif
|
|
|
|
|
|
/* Get a newline-terminated string of finite length from STREAM. */
|
|
extern char *fgets __P ((char *__restrict __s, int __n,
|
|
FILE *__restrict __stream));
|
|
|
|
#ifdef __USE_GNU
|
|
/* This function does the same as `fgets' but does not lock the stream. */
|
|
extern char *fgets_unlocked __P ((char *__restrict __s, int __n,
|
|
FILE *__restrict __stream));
|
|
#endif
|
|
|
|
/* 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. */
|
|
extern char *gets __P ((char *__s));
|
|
|
|
|
|
#ifdef __USE_GNU
|
|
#include <sys/types.h>
|
|
|
|
/* 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. */
|
|
ssize_t __getdelim __P ((char **__lineptr, size_t *__n,
|
|
int __delimiter, FILE *__stream));
|
|
ssize_t getdelim __P ((char **__lineptr, size_t *__n,
|
|
int __delimiter, FILE *__stream));
|
|
|
|
/* Like `getdelim', but reads up to a newline. */
|
|
ssize_t __getline __P ((char **__lineptr, size_t *__n, FILE *__stream));
|
|
ssize_t getline __P ((char **__lineptr, size_t *__n, FILE *__stream));
|
|
|
|
#ifdef __OPTIMIZE__
|
|
extern __inline ssize_t
|
|
getline (char **__lineptr, size_t *__n, FILE *__stream) __THROW
|
|
{
|
|
return __getdelim (__lineptr, __n, '\n', __stream);
|
|
}
|
|
#endif /* Optimizing. */
|
|
#endif
|
|
|
|
|
|
/* Write a string to STREAM. */
|
|
extern int fputs __P ((__const char *__restrict __s,
|
|
FILE *__restrict __stream));
|
|
|
|
#ifdef __USE_GNU
|
|
/* This function does the same as `fputs' but does not lock the stream. */
|
|
extern int fputs_unlocked __P ((__const char *__restrict __s,
|
|
FILE *__restrict __stream));
|
|
#endif
|
|
|
|
/* Write a string, followed by a newline, to stdout. */
|
|
extern int puts __P ((__const char *__s));
|
|
|
|
|
|
/* Push a character back onto the input buffer of STREAM. */
|
|
extern int ungetc __P ((int __c, FILE *__stream));
|
|
|
|
|
|
/* Read chunks of generic data from STREAM. */
|
|
extern size_t fread __P ((__ptr_t __restrict __ptr, size_t __size,
|
|
size_t __n, FILE *__restrict __stream));
|
|
/* Write chunks of generic data to STREAM. */
|
|
extern size_t fwrite __P ((__const __ptr_t __restrict __ptr, size_t __size,
|
|
size_t __n, FILE *__restrict __s));
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster versions when locking is not necessary. */
|
|
extern size_t fread_unlocked __P ((void *__restrict __ptr, size_t __size,
|
|
size_t __n, FILE *__restrict __stream));
|
|
extern size_t fwrite_unlocked __P ((__const void *__restrict __ptr,
|
|
size_t __size, size_t __n,
|
|
FILE *__restrict __stream));
|
|
#endif
|
|
|
|
|
|
/* Seek to a certain position on STREAM. */
|
|
extern int fseek __P ((FILE *__stream, long int __off, int __whence));
|
|
/* Return the current position of STREAM. */
|
|
extern long int ftell __P ((FILE *__stream));
|
|
/* Rewind to the beginning of STREAM. */
|
|
extern void rewind __P ((FILE *__stream));
|
|
|
|
/* Get STREAM's position. */
|
|
extern int fgetpos __P ((FILE *__restrict __stream, fpos_t *__restrict __pos));
|
|
/* Set STREAM's position. */
|
|
extern int fsetpos __P ((FILE *__stream, __const fpos_t *__pos));
|
|
|
|
|
|
/* Clear the error and EOF indicators for STREAM. */
|
|
extern void clearerr __P ((FILE *__stream));
|
|
/* Return the EOF indicator for STREAM. */
|
|
extern int feof __P ((FILE *__stream));
|
|
/* Return the error indicator for STREAM. */
|
|
extern int ferror __P ((FILE *__stream));
|
|
|
|
#ifdef __OPTIMIZE__
|
|
#define feof(stream) ((stream)->__eof != 0)
|
|
#define ferror(stream) ((stream)->__error != 0)
|
|
#endif /* Optimizing. */
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster versions when locking is not required. */
|
|
extern void clearerr_unlocked __P ((FILE *__stream));
|
|
extern int feof_unlocked __P ((FILE *__stream));
|
|
extern int ferror_unlocked __P ((FILE *__stream));
|
|
|
|
# ifdef __OPTIMIZE__
|
|
# define feof_unlocked(stream) ((stream)->__eof != 0)
|
|
# define ferror_unlocked(stream) ((stream)->__error != 0)
|
|
# endif /* Optimizing. */
|
|
#endif
|
|
|
|
/* Print a message describing the meaning of the value of errno. */
|
|
extern void perror __P ((__const char *__s));
|
|
|
|
#ifdef __USE_BSD
|
|
extern int sys_nerr;
|
|
extern const char *const sys_errlist[];
|
|
#endif
|
|
#ifdef __USE_GNU
|
|
extern int _sys_nerr;
|
|
extern const char *const _sys_errlist[];
|
|
#endif
|
|
|
|
|
|
#ifdef __USE_POSIX
|
|
/* Return the system file descriptor for STREAM. */
|
|
extern int fileno __P ((FILE *__stream));
|
|
#endif /* Use POSIX. */
|
|
|
|
#ifdef __USE_MISC
|
|
/* Faster version when locking is not required. */
|
|
extern int fileno_unlocked __P ((FILE *__stream));
|
|
#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. */
|
|
extern FILE *popen __P ((__const char *__command, __const char *__modes));
|
|
|
|
/* Close a stream opened by popen and return the status of its child. */
|
|
extern int pclose __P ((FILE *__stream));
|
|
#endif
|
|
|
|
|
|
#ifdef __USE_POSIX
|
|
/* Return the name of the controlling terminal. */
|
|
extern char *ctermid __P ((char *__s));
|
|
#endif
|
|
|
|
|
|
#ifdef __USE_XOPEN
|
|
/* Return the name of the current user. */
|
|
extern char *cuserid __P ((char *__s));
|
|
#endif
|
|
|
|
|
|
#ifdef __USE_GNU
|
|
struct obstack; /* See <obstack.h>. */
|
|
|
|
/* Open a stream that writes to OBSTACK. */
|
|
extern FILE *open_obstack_stream __P ((struct obstack *__obstack));
|
|
|
|
/* Write formatted output to an obstack. */
|
|
extern int obstack_printf __P ((struct obstack *__obstack,
|
|
__const char *__format, ...));
|
|
extern int obstack_vprintf __P ((struct obstack *__obstack,
|
|
__const char *__format,
|
|
__gnuc_va_list __args));
|
|
#endif
|
|
|
|
|
|
#if defined __USE_POSIX || defined __USE_MISC
|
|
/* These are defined in POSIX.1:1996. */
|
|
|
|
/* Acquire ownership of STREAM. */
|
|
extern void flockfile __P ((FILE *__stream));
|
|
|
|
/* Try to acquire ownership of STREAM but do not block if it is not
|
|
possible. */
|
|
extern int ftrylockfile __P ((FILE *__stream));
|
|
|
|
/* Relinquish the ownership granted for STREAM. */
|
|
extern void funlockfile __P ((FILE *__stream));
|
|
#endif /* POSIX || misc */
|
|
|
|
#if defined __USE_XOPEN && !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
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* <stdio.h> included. */
|
|
|
|
#endif /* stdio.h */
|