diff options
Diffstat (limited to 'lib/fopen-safer.c')
-rw-r--r-- | lib/fopen-safer.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/lib/fopen-safer.c b/lib/fopen-safer.c deleted file mode 100644 index 4f2ffa1b8..000000000 --- a/lib/fopen-safer.c +++ /dev/null @@ -1,69 +0,0 @@ -/* Invoke fopen, but avoid some glitches. - Copyright (C) 2001, 2004, 2005 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 2, 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, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -/* Written by Paul Eggert. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include "stdio-safer.h" - -#include <errno.h> -#include <unistd.h> -#include "unistd-safer.h" - -#ifndef STDERR_FILENO -# define STDERR_FILENO 2 -#endif - -/* Like fopen, but do not return stdin, stdout, or stderr. */ - -FILE * -fopen_safer (char const *file, char const *mode) -{ - FILE *fp = fopen (file, mode); - - if (fp) - { - int fd = fileno (fp); - - if (0 <= fd && fd <= STDERR_FILENO) - { - int f = dup_safer (fd); - - if (f < 0) - { - int e = errno; - fclose (fp); - errno = e; - return NULL; - } - - if (fclose (fp) != 0 - || ! (fp = fdopen (f, mode))) - { - int e = errno; - close (f); - errno = e; - return NULL; - } - } - } - - return fp; -} |