/* vi: set sw=4 ts=4: */ /* * Mini tty implementation for busybox * * Copyright (C) 2000 Edward Betts <edward@debian.org>. * * 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/types.h> #include "busybox.h" extern int tty_main(int argc, char **argv) { char *tty; if (argc > 1) { if (argv[1][0] != '-' || argv[1][1] != 's') show_usage(); } else { tty = ttyname(0); if (tty) puts(tty); else puts("not a tty"); } return(isatty(0) ? EXIT_SUCCESS : EXIT_FAILURE); }