view lib/stdio-safer.h @ 11850:9ebc8e9eca64

popen-safer: prevent popen from clobbering std descriptors * modules/popen-safer: New file. * lib/popen-safer.c: Likewise. * m4/stdio-safer.m4 (gl_POPEN_SAFER): New macro. * lib/stdio--.h (popen): Provide override. * lib/stdio-safer.h (popen_safer): Provide declaration. * tests/test-popen.c (includes): Partially test this. * modules/popen-safer-tests: New file, for more tests. * tests/test-popen-safer.c: Likewise. * MODULES.html.sh (file stream based Input/Output): Mention it. Signed-off-by: Eric Blake <ebb9@byu.net>
author Eric Blake <ebb9@byu.net>
date Wed, 19 Aug 2009 10:02:19 -0600
parents bbbbbf4cd1c5
children b156d2d1b827
line wrap: on
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/* Invoke stdio functions, but avoid some glitches.

   Copyright (C) 2001, 2003, 2006, 2009 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* Written by Paul Eggert.  */

#include <stdio.h>

FILE *fopen_safer (char const *, char const *);
FILE *popen_safer (char const *, char const *);
FILE *tmpfile_safer (void);