Add keylog.c

src/userland/gui/keylog.c

@@ -0,0 +1,62 @@
+#include "libc/syscall.h"
+#include "libc/libui.h"
+#include "libc/stdlib.h"
+#include <stdint.h>
+#include <stdbool.h>
+
+/*
+@Lluciocc
+The most SIMPLE keylogger for debug
+FEAT:
+- Log every key pressed in the terminal and gives their keycode
+*/
+
+#define WINDOW_W 400
+#define WINDOW_H 200
+
+static int last_key = -1;
+
+static void draw(ui_window_t win) {
+    ui_draw_rect(win, 0, 0, WINDOW_W, WINDOW_H, 0xFF121212);
+
+    ui_draw_string(win, 20, 20, "Key Logger", 0xFFFFFFFF);
+
+    if (last_key >= 0) {
+        char buf[32];
+        itoa(last_key, buf);
+
+        ui_draw_string(win, 20, 60, "Last key:", 0xFFAAAAAA);
+        ui_draw_string(win, 20, 90, buf, 0xFF6EA8FE);
+    } else {
+        ui_draw_string(win, 20, 60, "Press any key...", 0xFFAAAAAA);
+    }
+}
+
+int main(void) {
+    ui_window_t win = ui_window_create("keylog", 100, 100, WINDOW_W, WINDOW_H);
+    if (!win) return 1;
+
+    gui_event_t ev;
+
+    while (1) {
+        if (ui_get_event(win, &ev)) {
+
+            if (ev.type == GUI_EVENT_KEY) {
+                last_key = ev.arg1;
+
+                printf("Key pressed: %d\n", ev.arg1);
+            }
+
+            if (ev.type == GUI_EVENT_CLOSE) {
+                sys_exit(0);
+            }
+
+            draw(win);
+            ui_mark_dirty(win, 0, 0, WINDOW_W, WINDOW_H);
+        } else {
+            sys_yield();
+        }
+    }
+
+    return 0;
+}