diff options
Diffstat (limited to 'sysdeps/generic/check_fds.c')
| -rw-r--r-- | sysdeps/generic/check_fds.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/generic/check_fds.c b/sysdeps/generic/check_fds.c index ff9562de08..8a3efd1b37 100644 --- a/sysdeps/generic/check_fds.c +++ b/sysdeps/generic/check_fds.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2000, 2002 Free Software Foundation, Inc. +/* Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -32,6 +32,7 @@ #endif #include <device-nrs.h> +#include <not-cancel.h> /* Should other OSes (e.g., Hurd) have different versions which can @@ -39,6 +40,7 @@ static void check_one_fd (int fd, int mode) { + /* Note that fcntl() with this parameter is not a cancellation point. */ if (__builtin_expect (__libc_fcntl (fd, F_GETFD), 0) == -1 && errno == EBADF) { @@ -47,7 +49,7 @@ check_one_fd (int fd, int mode) /* Something is wrong with this descriptor, it's probably not opened. Open /dev/null so that the SUID program we are about to start does not accidently use this descriptor. */ - int nullfd = __libc_open (_PATH_DEVNULL, mode); + int nullfd = open_not_cancel (_PATH_DEVNULL, mode); /* We are very paranoid here. With all means we try to ensure that we are actually opening the /dev/null device and nothing else. |