No unsafe

image/Cargo.toml

@@ -15,4 +15,4 @@ image.workspace = true
 [target.'cfg(not(windows))'.dependencies]
 color_quant = "1.1.0"
 base64 = "0.22.1"
-libc = "0.2.177"
+rustix = { version = "1.1.2", features = ["termios", "event"] }

image/src/iterm.rs

@@ -1,37 +1,27 @@
-use crate::get_dimensions;
 use anyhow::Result;
 use base64::{engine, Engine};
 use image::{imageops::FilterType, DynamicImage};
+use rustix::termios::tcgetwinsize;
 use std::env;
 use std::io::Cursor;
 
-pub struct ITermBackend {}
+pub struct ITermBackend;
 
 impl ITermBackend {
-    pub fn new() -> Self {
-        ITermBackend {}
-    }
-
     pub fn supported() -> bool {
         let term_program = env::var("TERM_PROGRAM").unwrap_or_else(|_| "".to_string());
         term_program == "iTerm.app"
     }
 }
 
-impl Default for ITermBackend {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 impl super::ImageBackend for ITermBackend {
     fn add_image(
         &self,
         lines: Vec<String>,
         image: &DynamicImage,
         _colors: usize,
     ) -> Result<String> {
-        let tty_size = unsafe { get_dimensions() };
+        let tty_size = tcgetwinsize(std::io::stdin())?;
         let width_ratio = f64::from(tty_size.ws_col) / f64::from(tty_size.ws_xpixel);
         let height_ratio = f64::from(tty_size.ws_row) / f64::from(tty_size.ws_ypixel);