2014-03-31 16:40:21 +00:00
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#![crate_id(name="tty", version="1.0.0", author="Alan Andrade")]
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2014-01-10 08:23:12 +00:00
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/*
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* This file is part of the uutils coreutils package.
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*
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* (c) Jordi Boggiano <j.boggiano@seld.be>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*
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* Synced with http://lingrok.org/xref/coreutils/src/tty.c
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*/
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2014-03-31 16:40:21 +00:00
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#![allow(dead_code)]
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2014-02-07 06:39:07 +00:00
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2014-03-31 16:40:21 +00:00
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#![feature(macro_rules)]
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2014-02-07 06:39:07 +00:00
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2014-02-16 21:29:31 +00:00
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extern crate getopts;
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2014-04-07 22:43:34 +00:00
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extern crate libc;
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2014-01-10 08:23:12 +00:00
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2014-04-07 22:43:34 +00:00
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use std::{str,os};
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2014-01-13 09:05:02 +00:00
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use std::io::println;
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2014-01-10 08:23:12 +00:00
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use std::io::stdio::stderr;
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2014-02-07 06:39:07 +00:00
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use getopts::{optflag,getopts};
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2014-02-23 22:17:48 +00:00
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#[path = "../common/util.rs"]
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2014-02-07 06:39:07 +00:00
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mod util;
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2014-01-10 08:23:12 +00:00
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extern {
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fn ttyname(filedesc: libc::c_int) -> *libc::c_char;
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fn isatty(filedesc: libc::c_int) -> libc::c_int;
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}
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2014-02-07 06:39:07 +00:00
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static NAME: &'static str = "tty";
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2014-05-28 12:01:30 +00:00
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#[allow(dead_code)]
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2014-05-28 11:43:37 +00:00
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fn main () { uumain(os::args()); }
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2014-01-10 08:23:12 +00:00
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2014-05-28 11:43:37 +00:00
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pub fn uumain(args: Vec<String>) {
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2014-01-10 08:23:12 +00:00
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let options = [
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2014-02-07 06:39:07 +00:00
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optflag("s", "silent", "print nothing, only return an exit status")
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2014-01-10 08:23:12 +00:00
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];
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let silent = match getopts(args.tail(), options) {
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Ok(m) => {
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m.opt_present("s")
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},
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Err(f) => {
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2014-05-17 10:32:14 +00:00
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println(f.to_err_msg().as_slice());
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2014-01-10 08:23:12 +00:00
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usage();
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return
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}
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};
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let tty = unsafe { str::raw::from_c_str(ttyname(libc::STDIN_FILENO)) };
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if !silent {
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2014-05-23 12:28:40 +00:00
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if !tty.as_slice().is_whitespace() {
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println(tty.as_slice());
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2014-01-10 08:23:12 +00:00
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} else {
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2014-01-13 09:05:02 +00:00
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println!("not a tty");
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2014-01-10 08:23:12 +00:00
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}
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}
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let exit_code = unsafe {
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if isatty(libc::STDIN_FILENO) == 1 {
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libc::EXIT_SUCCESS
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} else {
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libc::EXIT_FAILURE
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}
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};
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os::set_exit_status(exit_code as int);
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}
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fn usage () {
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2014-02-07 06:39:07 +00:00
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safe_writeln!(&mut stderr() as &mut Writer, "usage: tty [-s]");
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2014-01-10 08:23:12 +00:00
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os::set_exit_status(2);
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}
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