/* Copyright (C) 1994, 1995 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 modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <ansidecl.h> #include <errno.h> #include <unistd.h> #include <hurd/fd.h> #include <hurd/term.h> /* Return 1 if FD is a terminal, 0 if not. */ int DEFUN(__isatty, (fd), int fd) { error_t err; mach_port_t id; err = HURD_DPORT_USE (fd, __term_getctty (port, &id)); if (! err) __mach_port_deallocate (__mach_task_self (), id); return !err; } weak_alias (__isatty, isatty)