From: Matt Corallo <git@bluematt.me>
Date: Fri, 23 Aug 2019 01:14:53 +0000 (-0400)
Subject: Fix handling failed route lookups
X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=ff30d00b8e0c4723875ac1e5c313a7813a2a0b4d;p=dnsseed-rust

Fix handling failed route lookups
---

diff --git a/src/bgp_client.rs b/src/bgp_client.rs
index cb33305..a890dad 100644
--- a/src/bgp_client.rs
+++ b/src/bgp_client.rs
@@ -182,7 +182,7 @@ impl BGPClient {
 				.then(path_b.med.cmp(&path_a.med))
 		});
 		// TODO: Find last common ASN among all paths
-		*path_vecs[0].path.last().unwrap_or(&0)
+		*path_vecs.first().map(|route| route.path.last().unwrap_or(&0)).unwrap_or(&0)
 	}
 
 	pub fn disconnect(&self) {