47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* Invoke openat, but avoid some glitches.
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Copyright (C) 2005-2006, 2008-2022 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 <https://www.gnu.org/licenses/>. */
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/* Written by Paul Eggert for open, ported by Eric Blake for openat. */
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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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openat_safer (int fd, 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 (openat (fd, file, flags, mode));
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}
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