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/*
FUNCTION
<<fcloseall>>---close all files
INDEX
fcloseall
INDEX
_fcloseall_r
ANSI_SYNOPSIS
#include <stdio.h>
int fcloseall(void);
int _fcloseall_r (struct _reent *<[ptr]>);
TRAD_SYNOPSIS
#include <stdio.h>
int fcloseall()
int _fcloseall_r (<[ptr]>)
struct _reent *<[ptr]>;
DESCRIPTION
<<fcloseall>> closes all files in the current reentrancy struct's domain.
The function <<_fcloseall_r>> is the same function, except the reentrancy
struct is passed in as the <[ptr]> argument.
This function is not recommended as it closes all streams, including
the std streams.
RETURNS
<<fclose>> returns <<0>> if all closes are successful. Otherwise,
EOF is returned.
PORTABILITY
<<fcloseall>> is a glibc extension.
Required OS subroutines: <<close>>, <<fstat>>, <<isatty>>, <<lseek>>,
<<read>>, <<sbrk>>, <<write>>.
*/
/* This file based upon fwalk.c. */
/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "local.h"
int
_fcloseall_r (ptr)
struct _reent *ptr;
{
register FILE *fp;
register int n, ret = 0;
register struct _glue *g;
for (g = &ptr->__sglue; g != NULL; g = g->_next)
for (fp = g->_iobs, n = g->_niobs; --n >= 0; fp++)
if (fp->_flags != 0)
ret |= fclose (fp);
return ret;
}
#ifndef _REENT_ONLY
int
fcloseall (void)
{
return _fcloseall_r (_REENT);
}
#endif
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