impl of Encode for NSOperatingSystemVersion

1 files changed, 12 insertions, 3 deletions

diff --git a/mullvad-daemon/src/macos_launch_daemon.rs b/mullvad-daemon/src/macos_launch_daemon.rs
index d71e4b49bb..3e10d94ce7 100644
--- a/mullvad-daemon/src/macos_launch_daemon.rs
+++ b/mullvad-daemon/src/macos_launch_daemon.rs
@@ -18,9 +18,18 @@ extern "C" {}
 #[repr(C)]
 #[derive(Debug)]
 struct NSOperatingSystemVersion {
-    major_version: libc::c_ulong,
-    minor_version: libc::c_ulong,
-    patch_version: libc::c_ulong,
+    major_version: libc::c_longlong,
+    minor_version: libc::c_longlong,
+    patch_version: libc::c_longlong,
+}
+
+/// Implement Objective-C type encoding for the struct. Allows the `objc` crate
+/// to perform function signature matching before performing calls into the Objective-C
+/// runtime. This is needed to be able to enable the `verify_message` feature on `objc`.
+unsafe impl objc::Encode for NSOperatingSystemVersion {
+    fn encode() -> objc::Encoding {
+        unsafe { objc::Encoding::from_str("{?=qqq}") }
+    }
 }
 
 /// Authorization status of the Mullvad daemon.