diff options
Diffstat (limited to 'winsup/cygwin/termios.cc')
| -rw-r--r-- | winsup/cygwin/termios.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/winsup/cygwin/termios.cc b/winsup/cygwin/termios.cc index 60ef9641f..c82f771b7 100644 --- a/winsup/cygwin/termios.cc +++ b/winsup/cygwin/termios.cc @@ -79,6 +79,8 @@ tcflush (int fd, int queue) if (!cfd->is_tty ()) set_errno (ENOTTY); + else if (queue != TCIFLUSH && queue != TCOFLUSH && queue != TCIOFLUSH) + set_errno (EINVAL); else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof) res = cfd->tcflush (queue); |