Fix route range

app/src/main/java/io/nekohasekai/sfa/ktx/Wrappers.kt

@@ -1,6 +1,11 @@
 package io.nekohasekai.sfa.ktx
 
+import android.net.IpPrefix
+import android.os.Build
+import androidx.annotation.RequiresApi
+import io.nekohasekai.libbox.RoutePrefix
 import io.nekohasekai.libbox.StringIterator
+import java.net.InetAddress
 
 fun Iterable<String>.toStringIterator(): StringIterator {
     return object : StringIterator {
@@ -22,4 +27,7 @@ fun StringIterator.toList(): List<String> {
             add(next())
         }
     }
-}
+}
+
+@RequiresApi(Build.VERSION_CODES.TIRAMISU)
+fun RoutePrefix.toIpPrefix() = IpPrefix(InetAddress.getByName(address()), prefix())