Fixed read() being able to backspace even if there's nothing to backspace

2026-11-03 18:22:22 +00:00 · 2024-05-19 10:56:17 +02:00
parent 9812f3f58d
commit d22536423c
1 changed files with 2 additions and 1 deletions
@@ -49,7 +49,8 @@ char* read() {
    uint8_t len = 0;

    while ((c = getc()) != '\n') {
-        if (c == '\b' && len > 0) {
+        if (c == '\b') {
+            if (len < 1) continue; // Can we backspace?
            len--;
            putc(c);
        } else if (len + 1 != MAX_INPUT_LENGTH) { // Check if we can add a new character