tty: replace nix by rustix

Author: sylvestre

Cargo.lock

@@ -24,7 +24,7 @@ uucore = { workspace = true, features = ["fs"] }
 fluent = { workspace = true }
 
 [target.'cfg(unix)'.dependencies]
-nix = { workspace = true, features = ["term"] }
+rustix = { workspace = true, features = ["fs", "termios"] }
 
 [[bin]]
 name = "tty"

src/uu/tty/Cargo.toml

@@ -39,10 +39,12 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
 
     let mut stdout = std::io::stdout();
 
-    let name = nix::unistd::ttyname(std::io::stdin());
+    let name = rustix::termios::ttyname(std::io::stdin(), Vec::with_capacity(8));
 
     let write_result = if let Ok(name) = name {
-        stdout.write_all_os(name.as_os_str())
+        use std::os::unix::ffi::OsStrExt;
+        let os_name = std::ffi::OsStr::from_bytes(name.as_bytes());
+        stdout.write_all_os(os_name)
     } else {
         set_exit_code(1);
         writeln!(stdout, "{}", translate!("tty-not-a-tty"))