Implement hostent handling

tests/integration_test.rs

@@ -66,6 +66,41 @@ fork_test! {
         })
     }
 
+    #[test]
+    fn getaddrinfo_resolution() -> Result<()> {
+        common::setup()?;
+        tokio::runtime::Runtime::new().unwrap().block_on(async {
+            let _dbus = common::mock_dbus(HashMap::from([(
+                getuid(),
+                vec![CLOUDFLARE_PARENTALCONTROL_ADDRS.clone()],
+            )]));
+
+            let hostname = std::ffi::CString::new("gnome.org").unwrap();
+            unsafe {
+                let mut addr = std::ptr::null_mut();
+                let getaddrinfo_status = getaddrinfo(
+                    hostname.as_ptr(),
+                    std::ptr::null(),
+                    std::ptr::null(),
+                    &mut addr,
+                );
+
+                let error = std::ffi::CStr::from_ptr(gai_strerror(getaddrinfo_status));
+                assert_eq!(
+                    getaddrinfo_status,
+                    Eai::Success.0,
+                    "Should have gotten an hostname, instead got {}",
+                    error.to_str().unwrap()
+                );
+                freeaddrinfo(addr);
+            };
+
+            //timeout(Duration::from_secs(1), dbus).await??
+            Ok(())
+        })
+    }
+
+
     #[test]
     fn wikipedia_is_unrestricted() -> Result<()> {
         common::setup()?;