From c08409a9819d40f3e700ed439c85edc5d8c58de7 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 9 Apr 2026 07:04:12 +0530
Subject: [PATCH] Function to get machine ID on cocoa

---
 kitty/cocoa_window.m      | 25 +++++++++++++++++++++++++
 kitty/fast_data_types.pyi |  1 +
 setup.py                  |  2 +-
 3 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/kitty/cocoa_window.m b/kitty/cocoa_window.m
index 84b80900f..d8b8a641b 100644
--- a/kitty/cocoa_window.m
+++ b/kitty/cocoa_window.m
@@ -12,6 +12,7 @@
 #include <Availability.h>
 #include <Carbon/Carbon.h>
 #include <Cocoa/Cocoa.h>
+#import <IOKit/IOKitLib.h>
 #include <UserNotifications/UserNotifications.h>
 #import <AudioToolbox/AudioServices.h>
 
@@ -1382,9 +1383,33 @@ cocoa_clear_dock_badge_if_set(void) {
 
 // }}}
 
+static PyObject*
+cocoa_get_machine_id(PyObject *self UNUSED, PyObject *args UNUSED) {
+    static char ans[1024] = {0};
+    static bool done = false;
+    if (!done) {
+        done = true;
+        CFMutableDictionaryRef matching = IOServiceMatching("IOPlatformExpertDevice");
+        // Get the matching service
+        io_service_t service = IOServiceGetMatchingService(kIOMainPortDefault, matching);
+        if (service) {
+            CFTypeRef uuid = IORegistryEntryCreateCFProperty(service, CFSTR("IOPlatformUUID"), kCFAllocatorDefault, 0);
+            if (uuid) {
+                // Transfer ownership to NSString using ARC __bridge_transfer
+                NSString *s = (NSString*)uuid;
+                [s getCString:ans maxLength:sizeof(ans) encoding:NSUTF8StringEncoding];
+            }
+            // Release the I/O object
+            IOObjectRelease(service);
+        }
+    }
+    return PyUnicode_FromString(ans);
+}
+
 static PyMethodDef module_methods[] = {
     {"cocoa_play_system_sound_by_id_async", play_system_sound_by_id_async, METH_O, ""},
     {"cocoa_get_lang", (PyCFunction)cocoa_get_lang, METH_NOARGS, ""},
+    {"cocoa_get_machine_id", (PyCFunction)cocoa_get_machine_id, METH_NOARGS, ""},
     {"cocoa_set_global_shortcut", (PyCFunction)cocoa_set_global_shortcut, METH_VARARGS, ""},
     {"cocoa_send_notification", (PyCFunction)(void(*)(void))cocoa_send_notification, METH_VARARGS | METH_KEYWORDS, ""},
     {"cocoa_remove_delivered_notification", (PyCFunction)cocoa_remove_delivered_notification, METH_O, ""},
diff --git a/kitty/fast_data_types.pyi b/kitty/fast_data_types.pyi
index 05f65ffe9..4a598660c 100644
--- a/kitty/fast_data_types.pyi
+++ b/kitty/fast_data_types.pyi
@@ -1781,6 +1781,7 @@ def base64_decode(src: Union[str, ReadableBuffer]) -> bytes: ...
 def base64_decode_into(src: Union[str, ReadableBuffer], output: WriteableBuffer) -> int: ...
 def cocoa_recreate_global_menu() -> None: ...
 def cocoa_clear_global_shortcuts() -> None: ...
+def cocoa_get_machine_id() -> str: ...
 def update_pointer_shape(os_window_id: int) -> None: ...
 def is_layer_shell_supported() -> bool: ...
 def os_window_focus_counters() -> Dict[int, int]: ...
diff --git a/setup.py b/setup.py
index 12fa0e663..5844c4e31 100755
--- a/setup.py
+++ b/setup.py
@@ -655,7 +655,7 @@ def kitty_env(args: Options) -> Env:
     if is_macos:
         platform_libs = [
             '-framework', 'Carbon', '-framework', 'CoreText', '-framework', 'CoreGraphics',
-            '-framework', 'AudioToolbox',
+            '-framework', 'AudioToolbox', '-framework', 'IOKit',
         ]
         test_program_src = '''#include <UserNotifications/UserNotifications.h>
         int main(void) { return 0; }\n'''