Refrain from using reflection to parse numerical address

mobile/src/main/java/be/mygod/vpnhotspot/util/Utils.kt

@@ -2,6 +2,8 @@ package be.mygod.vpnhotspot.util
 
 import android.content.*
 import android.os.Build
+import android.system.Os
+import android.system.OsConstants
 import android.view.View
 import android.widget.ImageView
 import androidx.annotation.DrawableRes
@@ -52,12 +54,8 @@ fun NetworkInterface.formatAddresses() =
                 }))
                 .joinToString("\n")
 
-private val parseNumericAddress by lazy {
-    InetAddress::class.java.getDeclaredMethod("parseNumericAddress", String::class.java).apply {
-        isAccessible = true
-    }
-}
-fun parseNumericAddress(address: String) = parseNumericAddress.invoke(null, address) as InetAddress
+fun parseNumericAddress(address: String?): InetAddress? =
+        Os.inet_pton(OsConstants.AF_INET, address) ?: Os.inet_pton(OsConstants.AF_INET6, address)
 
 fun Context.stopAndUnbind(connection: ServiceConnection) {
     connection.onServiceDisconnected(null)