35 lines
972 B
Rust
35 lines
972 B
Rust
use std::{fs, io};
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use std::os::unix::io::AsRawFd;
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/// Is this stream an TTY?
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#[cfg(not(target_os = "redox"))]
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pub fn is_tty<T: AsRawFd>(stream: &T) -> bool {
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use libc;
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unsafe { libc::isatty(stream.as_raw_fd()) == 1 }
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}
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/// This will panic.
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#[cfg(target_os = "redox")]
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pub fn is_tty<T: AsRawFd>(_stream: &T) -> bool {
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unimplemented!();
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}
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/// Get the TTY device.
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///
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/// This allows for getting stdio representing _only_ the TTY, and not other streams.
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#[cfg(target_os = "redox")]
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pub fn get_tty() -> io::Result<fs::File> {
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use std::env;
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let tty = try!(env::var("TTY").map_err(|x| io::Error::new(io::ErrorKind::NotFound, x)));
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fs::OpenOptions::new().read(true).write(true).open(tty)
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}
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/// Get the TTY device.
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///
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/// This allows for getting stdio representing _only_ the TTY, and not other streams.
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#[cfg(not(target_os = "redox"))]
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pub fn get_tty() -> io::Result<fs::File> {
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fs::OpenOptions::new().read(true).write(true).open("/dev/tty")
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}
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