61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* Copyright (C) 1991, 1995, 1996, 1998 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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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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/* Close a stream. */
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int
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fclose (stream)
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FILE *stream;
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{
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int status;
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if (!__validfp (stream))
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{
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__set_errno (EINVAL);
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return EOF;
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}
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if (stream->__mode.__write &&
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/* Flush the buffer. */
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__flshfp (stream, EOF) == EOF)
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return EOF;
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/* Free the buffer's storage. */
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if (stream->__buffer != NULL && !stream->__userbuf)
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free (stream->__buffer);
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/* Close the system file descriptor. */
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if (stream->__io_funcs.__close != NULL)
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status = (*stream->__io_funcs.__close) (stream->__cookie);
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else if (!stream->__seen && stream->__cookie != NULL)
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status = __stdio_close (stream->__cookie);
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else
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status = 0;
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/* Nuke the stream, making it available for re-use. */
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__invalidate (stream);
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return status < 0 ? EOF : 0;
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}
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