Better documentation, fix TIOCGWINSZ

examples/size.rs

+extern crate libterm;
+
+use libterm::terminal_size;
+
+fn main() {
+    println!("Size is {:?}", terminal_size().unwrap())
+}

src/extra.rs

@@ -4,6 +4,9 @@ use {IntoRawMode, TerminalError};
 /// Extension to `Read` trait.
 pub trait ReadExt {
     /// Read a password.
+    ///
+    /// EOT and ETX will abort the prompt, returning `None`. Newline or carriage return will
+    /// complete the password input.
     fn read_passwd<W: Write>(&mut self, writer: &mut W) -> Result<Option<String>, TerminalError>;
 }
 

src/lib.rs

@@ -18,8 +18,11 @@ pub use error::TerminalError;
 mod raw;
 pub use raw::{IntoRawMode, TerminalRestorer};
 
+// TODO Redox terminal size
+#[cfg(not(target_os = "redox"))]
 mod size;
-pub use size::termsize;
+#[cfg(not(target_os = "redox"))]
+pub use size::terminal_size;
 
 mod color;
 pub use color::Color;

src/size.rs

@@ -3,7 +3,7 @@ use libc::{c_ushort, STDOUT_FILENO};
 
 use std::mem;
 
-use termios::tiocgwinsz;
+use termios::TIOCGWINSZ;
 use TerminalError;
 
 #[repr(C)]
@@ -16,11 +16,11 @@ struct TermSize {
 
 /// Get the size of the terminal. If the program isn't running in a terminal, it will return
 /// `None`.
-pub fn termsize() -> Result<(usize, usize), TerminalError> {
+pub fn terminal_size() -> Result<(usize, usize), TerminalError> {
     unsafe {
         let mut size: TermSize = mem::zeroed();
 
-        if ioctl(STDOUT_FILENO, tiocgwinsz as u64, &mut size as *mut _) == 0 {
+        if ioctl(STDOUT_FILENO, TIOCGWINSZ, &mut size as *mut _) == 0 {
             Ok((size.col as usize, size.row as usize))
         } else {
             Err(TerminalError::TermSizeError)

src/termios.rs

 use libc::{c_int, c_uint, c_uchar};
 
-extern {
-    pub static tiocgwinsz: c_int;
+#[cfg(not(target_os = "macos"))]
+pub const TIOCGWINSZ: u64 = 0x00005413;
+
+#[cfg(target_os = "macos")]
+pub const TIOCGWINSZ: u64 = 0x40087468;
 
+extern {
     pub fn tcgetattr(filedes: c_int, termptr: *mut Termios) -> c_int;
     pub fn tcsetattr(filedes: c_int, opt: c_int, termptr: *mut Termios) -> c_int;
     pub fn cfmakeraw(termptr: *mut Termios);