1 /* Invoke fopen, but avoid some glitches.
2 Copyright (C) 2001, 2004, 2005 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Written by Paul Eggert. */
24 #include "stdio-safer.h"
28 #include "unistd-safer.h"
31 # define STDERR_FILENO 2
34 /* Like fopen, but do not return stdin, stdout, or stderr. */
37 fopen_safer (char const *file, char const *mode)
39 FILE *fp = fopen (file, mode);
45 if (0 <= fd && fd <= STDERR_FILENO)
47 int f = dup_safer (fd);
58 || ! (fp = fdopen (f, mode)))