fix gateway path for non-macOS Apple platforms

src/interface/unix.rs

@@ -97,7 +97,39 @@ pub fn interfaces() -> Vec<Interface> {
 
 #[cfg(all(target_vendor = "apple", not(target_os = "macos")))]
 pub fn interfaces() -> Vec<Interface> {
-    unix_interfaces()
+    let mut interfaces: Vec<Interface> = unix_interfaces();
+
+    #[cfg(feature = "gateway")]
+    let local_ip_opt: Option<IpAddr> = super::get_local_ipaddr();
+
+    #[cfg(feature = "gateway")]
+    let gateway_map = gateway::macos::get_gateway_map();
+
+    for iface in &mut interfaces {
+        #[cfg(feature = "gateway")]
+        {
+            if let Some(gateway) = gateway_map.get(&iface.index) {
+                iface.gateway = Some(gateway.clone());
+            }
+
+            if let Some(local_ip) = local_ip_opt {
+                iface.ipv4.iter().for_each(|ipv4| {
+                    if IpAddr::V4(ipv4.addr()) == local_ip {
+                        iface.dns_servers = get_system_dns_conf();
+                        iface.default = true;
+                    }
+                });
+                iface.ipv6.iter().for_each(|ipv6| {
+                    if IpAddr::V6(ipv6.addr()) == local_ip {
+                        iface.dns_servers = get_system_dns_conf();
+                        iface.default = true;
+                    }
+                });
+            }
+        }
+    }
+
+    interfaces
 }
 
 #[cfg(any(target_os = "linux", target_os = "android"))]