Add function to get terminal size.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/tiocgwinsz.rs b/src/tiocgwinsz.rs
new file mode 100644
index 0000000..9fdf9a4
--- /dev/null
+++ b/src/tiocgwinsz.rs
@@ -0,0 +1,18 @@
+use libc::{c_int, winsize};
+
+pub fn size() -> Option<winsize> {
+    let mut window: winsize = winsize {
+        ws_row: 0,
+        ws_col: 0,
+        ws_xpixel: 0,
+        ws_ypixel: 0,
+    };
+    let result: c_int;
+    unsafe {
+        result = libc::ioctl(0, libc::TIOCGWINSZ, &mut window);
+    }
+    if result < 0 {
+        return None;
+    }
+    return Some(window);
+}