Get the tty device, get_tty

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "termion"
-version = "1.0.3"
+version = "1.0.4"
 authors = ["Ticki <Ticki@users.noreply.github.com>"]
 description = "A bindless library for manipulating terminals."
 repository = "https://github.com/ticki/termion"

README.md

@@ -54,6 +54,7 @@ version of Termion.
 - Cursor movement.
 - Text formatting.
 - Console size.
+- TTY-only stream.
 - Control sequences.
 - Termios control.
 - Password input.

src/lib.rs

@@ -24,7 +24,7 @@ mod size;
 pub use size::terminal_size;
 
 mod tty;
-pub use tty::is_tty;
+pub use tty::{is_tty, get_tty};
 
 #[macro_use]
 mod macros;

src/tty.rs

@@ -1,3 +1,4 @@
+use std::{fs, io};
 use std::os::unix::io::AsRawFd;
 
 /// Is this stream an TTY?
@@ -13,3 +14,19 @@ pub fn is_tty<T: AsRawFd>(stream: T) -> bool {
 pub fn is_tty<T: AsRawFd>(_stream: T) -> bool {
     unimplemented!();
 }
+
+/// Get the TTY device.
+///
+/// This allows for getting stdio representing _only_ the TTY, and not other streams.
+#[cfg(target_os = "redox")]
+pub fn get_tty() -> io::Result<fs::File> {
+    fs::OpenOptions::new().read(true).write(true).open(env::var("TTY")?)
+}
+
+/// Get the TTY device.
+///
+/// This allows for getting stdio representing _only_ the TTY, and not other streams.
+#[cfg(not(target_os = "redox"))]
+pub fn get_tty() -> io::Result<fs::File> {
+    fs::OpenOptions::new().read(true).write(true).open("/dev/tty")
+}