Blame libio/iosetbuffer.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 "libioP.h"
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void
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_IO_setbuffer (FILE *fp, char *buf, size_t size)
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{
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  CHECK_FILE (fp, );
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  _IO_acquire_lock (fp);
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  fp->_flags &= ~_IO_LINE_BUF;
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  if (!buf)
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    size = 0;
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  (void) _IO_SETBUF (fp, buf, size);
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  if (_IO_vtable_offset (fp) == 0 && fp->_mode == 0 && _IO_CHECK_WIDE (fp))
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    /* We also have to set the buffer using the wide char function.  */
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    (void) _IO_WSETBUF (fp, buf, size);
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  _IO_release_lock (fp);
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}
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libc_hidden_def (_IO_setbuffer)
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weak_alias (_IO_setbuffer, setbuffer)