1 /* Invoke fopen, but avoid some glitches.
3 Copyright (C) 2001, 2004, 2005, 2006, 2009 Free Software
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 /* Written by Paul Eggert. */
23 #include "stdio-safer.h"
27 #include "unistd-safer.h"
29 /* Like fopen, but do not return stdin, stdout, or stderr. */
32 fopen_safer (char const *file, char const *mode)
34 FILE *fp = fopen (file, mode);
40 if (0 <= fd && fd <= STDERR_FILENO)
42 int f = dup_safer (fd);
53 || ! (fp = fdopen (f, mode)))