1 /* Invoke fopen, but avoid some glitches.
3 Copyright (C) 2001, 2004, 2005, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19 /* Written by Paul Eggert. */
23 #include "stdio-safer.h"
27 #include "unistd-safer.h"
30 # define STDERR_FILENO 2
33 /* Like fopen, but do not return stdin, stdout, or stderr. */
36 fopen_safer (char const *file, char const *mode)
38 FILE *fp = fopen (file, mode);
44 if (0 <= fd && fd <= STDERR_FILENO)
46 int f = dup_safer (fd);
57 || ! (fp = fdopen (f, mode)))