mirror of
https://github.com/uutils/coreutils
synced 2024-12-15 07:42:48 +00:00
30bba07f9c
squashed: a2c6b27 - build: automatically generate main() files c942f0f - remove MULTICALL=1 build from travis cb7b35b - make: remove unnecessary shell command 69bbb31 - update README 03a3168 - all: move main() into separate file that links against util crate 8276384 - make: always build multicall binary aa4edeb - make: avoid 'rustc --crate-file-name'
76 lines
1.6 KiB
Rust
76 lines
1.6 KiB
Rust
#![crate_id(name="tty", version="1.0.0", author="Alan Andrade")]
|
|
|
|
|
|
/*
|
|
* This file is part of the uutils coreutils package.
|
|
*
|
|
* (c) Jordi Boggiano <j.boggiano@seld.be>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*
|
|
* Synced with http://lingrok.org/xref/coreutils/src/tty.c
|
|
*/
|
|
|
|
#![allow(dead_code)]
|
|
|
|
#![feature(macro_rules)]
|
|
|
|
extern crate getopts;
|
|
extern crate libc;
|
|
|
|
use std::str;
|
|
use std::io::println;
|
|
use std::io::stdio::stderr;
|
|
use getopts::{optflag,getopts};
|
|
|
|
#[path = "../common/util.rs"]
|
|
mod util;
|
|
|
|
extern {
|
|
fn ttyname(filedesc: libc::c_int) -> *libc::c_char;
|
|
fn isatty(filedesc: libc::c_int) -> libc::c_int;
|
|
}
|
|
|
|
static NAME: &'static str = "tty";
|
|
|
|
pub fn uumain(args: Vec<String>) -> int {
|
|
let options = [
|
|
optflag("s", "silent", "print nothing, only return an exit status")
|
|
];
|
|
|
|
let silent = match getopts(args.tail(), options) {
|
|
Ok(m) => {
|
|
m.opt_present("s")
|
|
},
|
|
Err(f) => {
|
|
println!("{}", f);
|
|
usage();
|
|
return 2;
|
|
}
|
|
};
|
|
|
|
let tty = unsafe { str::raw::from_c_str(ttyname(libc::STDIN_FILENO)) };
|
|
|
|
if !silent {
|
|
if !tty.as_slice().is_whitespace() {
|
|
println(tty.as_slice());
|
|
} else {
|
|
println!("not a tty");
|
|
}
|
|
}
|
|
|
|
let exit_code = unsafe {
|
|
if isatty(libc::STDIN_FILENO) == 1 {
|
|
libc::EXIT_SUCCESS
|
|
} else {
|
|
libc::EXIT_FAILURE
|
|
}
|
|
};
|
|
|
|
exit_code as int
|
|
}
|
|
|
|
fn usage () {
|
|
safe_writeln!(&mut stderr() as &mut Writer, "usage: tty [-s]");
|
|
}
|