termios (doesn't work)

src/lib.rs

@@ -21,6 +21,44 @@ extern "C" {
     static mut foregroundColor: c_int;
 }
 
+
+static mut SAVED_TERMIOS: Option<termios::Termios> = None;
+
+/// Turn off terminal echo and line buffering when passed an integer value
+/// that evaluates to true. Restore the original terminal values when passed
+///  an integer value that evaluates to false.
+#[no_mangle]
+pub extern "C" fn nmstermio_set_terminal(s: c_int) {
+    use std::os::fd::AsRawFd;
+    use std::fs::File;
+    use termios::*;
+
+    let fd = if atty::is(atty::Stream::Stdin) {
+        println!("stdin");
+        std::io::stdin().as_raw_fd()
+    } else {
+        println!("tty");
+        File::open("/dev/tty").unwrap().as_raw_fd()
+    };
+    println!("{fd}");
+
+    let mut termios = Termios::from_fd(fd).unwrap();
+
+    if s == 0 {
+        unsafe {
+            SAVED_TERMIOS = Some(termios.clone());
+        }
+        termios.c_lflag &= !ICANON & !ECHO;
+        tcsetattr(fd, TCSANOW, &mut termios).unwrap();
+    } else {
+        unsafe {
+        if let Some(saved_termios) = SAVED_TERMIOS {
+            tcsetattr(fd, TCSANOW, &saved_termios).unwrap();
+            }
+        }
+    }
+}
+
 ///Sleep for the number of milliseconds indicated by argument
 #[no_mangle]
 pub extern "C" fn nmseffect_sleep(t: c_int) {

src/nmstermio.c

@@ -53,7 +53,7 @@ static int clearScr          = 0;                     // clearScr flag
 int foregroundColor   = COLOR_BLUE;            // Foreground color setting
 
 // Function prototypes
-static void nmstermio_set_terminal(int);
+extern void nmstermio_set_terminal(int);
 
 /*
  * Initialize and configure the terminal for output. This usually means
@@ -257,37 +257,3 @@ int nmstermio_get_cursor_row(void) {
 	
 	return row;
 }
-
-/*
- * Turn off terminal echo and line buffering when passed an integer value
- * that evaluates to true. Restore the original terminal values when passed
- * an integer value that evaluates to false.
- */
-static void nmstermio_set_terminal(int s) {
-	struct termios tp;
-	static struct termios save;
-	static int state = 1;
-
-	if (!isatty(STDIN_FILENO)) {
-		stdin = freopen("/dev/tty", "r", stdin);
-	}
-	
-	if (s == 0) {
-		if (tcgetattr(STDIN_FILENO, &tp) == -1) {
-			return;
-		}
-
-		save = tp;
-		
-		tp.c_lflag &=(~ICANON & ~ECHO);
-		
-		if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &tp) == -1) {
-			return;
-		}
-	} else {
-		if (state == 0 && tcsetattr(STDIN_FILENO, TCSANOW, &save) == -1)
-			return;
-	}
-	
-	state = s;
-}