Blame libio/oldiofclose.c

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/* Copyright (C) 1993-2018 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 Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the 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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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.
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   As a special exception, if you link the code in this file with
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   files compiled with a GNU compiler to produce an executable,
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   that does not cause the resulting executable to be covered by
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   the GNU Lesser General Public License.  This exception does not
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   however invalidate any other reasons why the executable file
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   might be covered by the GNU Lesser General Public License.
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   This exception applies to code released by its copyright holders
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   in files containing the exception.  */
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#include <shlib-compat.h>
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
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#define _IO_USE_OLD_IO_FILE
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#include "libioP.h"
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#include <stdlib.h>
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int
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attribute_compat_text_section
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_IO_old_fclose (FILE *fp)
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{
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  int status;
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  CHECK_FILE(fp, EOF);
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  /* We desperately try to help programs which are using streams in a
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     strange way and mix old and new functions.  Detect new streams
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     here.  */
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  if (fp->_vtable_offset == 0)
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    return _IO_new_fclose (fp);
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  /* First unlink the stream.  */
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  if (fp->_flags & _IO_IS_FILEBUF)
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    _IO_un_link ((struct _IO_FILE_plus *) fp);
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  _IO_acquire_lock (fp);
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  if (fp->_flags & _IO_IS_FILEBUF)
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    status = _IO_old_file_close_it (fp);
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  else
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    status = fp->_flags & _IO_ERR_SEEN ? -1 : 0;
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  _IO_release_lock (fp);
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  _IO_FINISH (fp);
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  if (_IO_have_backup (fp))
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    _IO_free_backup_area (fp);
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  if (fp != _IO_stdin && fp != _IO_stdout && fp != _IO_stderr)
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    {
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      fp->_flags = 0;
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      free(fp);
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    }
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  return status;
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}
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strong_alias (_IO_old_fclose, __old_fclose)
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compat_symbol (libc, _IO_old_fclose, _IO_fclose, GLIBC_2_0);
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compat_symbol (libc, __old_fclose, fclose, GLIBC_2_0);
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#endif