Blame lib/open-safer.c

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/* Invoke open, but avoid some glitches.
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   Copyright (C) 2005-2006, 2008-2017 Free Software Foundation, Inc.
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   This program is free software: you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program 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
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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/* Written by Paul Eggert.  */
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#include <config.h>
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#include "fcntl-safer.h"
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#include <fcntl.h>
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#include <stdarg.h>
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#include "unistd-safer.h"
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int
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open_safer (char const *file, int flags, ...)
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{
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  mode_t mode = 0;
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  if (flags & O_CREAT)
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    {
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      va_list ap;
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      va_start (ap, flags);
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      /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4
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         creates crashing code when 'mode_t' is smaller than 'int'.  */
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      mode = va_arg (ap, PROMOTED_MODE_T);
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      va_end (ap);
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    }
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  return fd_safer (open (file, flags, mode));
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}