1 /* Invoke open, but avoid some glitches.
3 Copyright (C) 2004 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19 /* Written by Paul Eggert. */
25 #include <fcntl-safer.h>
27 #include <unistd-safer.h>
40 # define STDERR_FILENO 2
43 /* Like open, but do not return STDIN_FILENO, STDOUT_FILENO, or
47 open_safer (char const *file, int oflag, ...)
55 va_start (args, oflag);
56 if (sizeof (int) <= sizeof (mode_t))
57 mode = va_arg (args, mode_t);
59 mode = va_arg (args, int);
63 fd = open (file, oflag, mode);
65 if (0 <= fd && fd <= STDERR_FILENO)
67 int f = dup_safer (fd);