conf: use fd_cloexec()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/conf.c b/src/lxc/conf.c
index 5f060fe18c08da2ec09721dffe54a52250fa72ed..8ba5fa8339006a423421ef21f206a64396d902fb 100644 (file)
--- a/src/lxc/conf.c
+++ b/src/lxc/conf.c
@@ -984,12 +984,12 @@ int lxc_allocate_ttys(struct lxc_conf *conf)
                      tty->name, tty->master, tty->slave);
 
                /* Prevent leaking the file descriptors to the container */
-               ret = fcntl(tty->master, F_SETFD, FD_CLOEXEC);
+               ret = fd_cloexec(tty->master, true);
                if (ret < 0)
                        SYSWARN("Failed to set FD_CLOEXEC flag on master fd %d of "
                                "tty device \"%s\"", tty->master, tty->name);
 
-               ret = fcntl(tty->slave, F_SETFD, FD_CLOEXEC);
+               ret = fd_cloexec(tty->slave, true);
                if (ret < 0)
                        SYSWARN("Failed to set FD_CLOEXEC flag on slave fd %d of "
                                "tty device \"%s\"", tty->slave, tty->name);